"They were knocking down sunflowers and taking flower heads with them," Mr. Bogle said.
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And recipes abound, ranging from fried flower heads to Queen Anne's lace jelly — traditionally dyed bright pink.
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Q&A Q. Rather than digging out dandelions in my lawn, I just pull off the flower heads and buds.
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" The tips of rocket-propelled grenades are "half plunged into the earth like banana flower heads pitched from a great height by some immortal strength.
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Once a year, Yael Alkalay of the brand Red Flower heads to the southern coast of Massachusetts to get her hands dirty and dream up new elixirs.
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Pulling off flower heads, known to gardeners as deadheading, can encourage more shoots and buds, as it directs the plant's resources from the developing flower and back to the infrastructure.
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At the High Line, 130 volunteers are fanning out across the park, cutting back dead plants and picking up spent flower heads so its black-eyed Susans, rattlesnake masters and switchgrass can grow anew. Fields.
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This is delicate work: Anemone and poppy specimens are so sinewy they have to be transported from the press to the page using little paper cradles; and flower heads are often comprised from single petals painstakingly pieced together into a unified whole.
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The inflorescences are specialised structures called pseudanthia, also known simply as flower heads, containing hundred of reduced flowers, called florets. The flower heads are sessile. The flower heads are cup-shaped, dropping and pendulous, coloured red, in length, and in diameter. The flower heads are surrounded by a series of seven rows of petal or scale-like 'involucral bracts'.
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The prominent midrib of the leaves is coloured somewhat yellowish. It usually has solitary flower heads, a specialised type of inflorescence. These flower heads are quite variable in form, but can grow up to 11 cm in diameter. The flower heads are densely hairy and have a very strong scent.
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Liatris aspera is similar to Liatris ligulistylis in having button-like flower heads, but the stalks of its flower heads are shorter or absent altogether, and it prefers drier habitats.
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Banksia subg. Isostylis shares with B. ser. Dryandra the property of having compact, dome-shaped flower heads. Structurally, however, Isostylis flower heads are quite different from those of B. ser.
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Flower heads grow in flat-topped clusters at the tops of stems. Flower heads have 18-25 yellow disk flowers, with 5-10 yellow ray flowers. Bristly phyllaries halfway enclose the akenes.
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The upper leaves become progressively shorter and narrower. The flower heads are 6mm long. The bracts of the flower heads have a green centre, and chaffy brown edges. The florets are pale brown.
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Oedera imbricata has bright yellow flower heads, not yolk yellow.
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They bear clusters of flower heads with golden disc florets.
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Flower heads are solitary about across, on long terminal peduncles.
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The male plants have whiter flower heads than female plants.
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Flower heads are yellow, with both ray florets and disc florets.
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In some of these plants, the flower-heads were also proliferous.
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Females will oviposit in flower heads, particularly in the heads of Asteraceae.
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They feed on flower heads, destroying the developing seeds of the weeds.
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The disc is yellow and bracts are white, the flower heads in diameter.
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The uncultivated plant grows to about 30 in (76 cm) in height. It has solitary flower heads about 2 inches (5 cm) across. The purple ray florets surround black and yellow discs. The lanceolate leaves are opposite the flower heads.
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They are oblong to lance-shaped with smooth or serrated margins. The flower heads are borne on rough-haired, glandular peduncles. The bracts are linear to lance-shaped. The flower heads are relatively large, up to 5 to 6 centimeters across.
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Flower heads are yellow and the flower buds are covered with black gland-hairs.
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The spherical flower- heads globular have a diameter of and contain 17 to 22 flowers.
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The bracts that subtend the flower heads are pointed and may have a hooked tip.
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The tip of each Pteronia pallens stem produces only 1-3 rounded flower-heads. A small shrub with pale woody stem. The leaves are slender, blunt-ended, channeled and green. One to three rounded, discoid flower heads appear at the tips of the branches.
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Each plant produces numerous flower heads, with purple or lavender ray florets and yellow disc florets.
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Flower heads mostly contain relatively few male florets at the centre, encircled by many more female florets. However solely female flower heads also occur, and individual plants may even produce only female flower heads. The flower heads are individually set at the end of the branches, bowl-shaped and mostly 3– cm across. The involucre is –2 cm high, nearly reaching the mouth of the florets, with four to five whorls of leaf- like bracts, the outermost bracts largest, which are long to very long ovate in shape linear-oblong or obovate-lanceolate, their margin with some glandular hairs, and a stump to pointy tip.
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The unopened flower heads of Saccharum edule are gathered and used as a vegetable, it's eaten either raw or cooked. In Fiji, a number of different varieties occur and some grow wild along the riverbank. Children enjoy gathering, roasting and eating the flower heads of the early season red duruka, and later the different varieties of white duruka as they mature in rotation. The flower heads are widely sold in local markets for use as a vegetable.
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Close-up of flower heads, thorns and leaves Golden-coloured flower heads Close-up of flower heads It is a shrub or small to medium-sized tree which grows to height of 12m. Vachellia karroo has a rounded crown, branching fairly low down on the trunk. It is variable in shape and size, reaching a maximum of about 12m where there is good water. The bark is red on young branches, darkening and becoming rough with age.
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Flower heads are white, occasionally with a pink tinge. The species grows in poorly drained acidic soils.
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The plant produces many small, nodding (hanging) flower heads with purple disc florets but no ray florets.
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It is an herbaceous perennial growing up to tall, with bright yellow daisy-like composite flower heads.
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The plant produces flower heads in dense clumps of 8-16 heads, each containing several small flowers.
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The larvae feed on Eragrostis species. They bore in the stems and flower heads of their host plant.
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It produces large, dense arrays of small yellow flower heads, each with disc florets but no ray florets.
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Flower heads are purple, arranged as a corymb.Gray, Asa. Notes on Some Compositae 78. 1880.Robinson, H. 1999.
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The aerial flowers are pollinated by a wide variety of insects, but self-fertilisation occurs, and is probably the only type of fertilisation in the horizontal flowerheads. Catananche lutea has both flower heads on long erect stems (aerial) and flower heads on very short stems between or under the leaves of the basal rosette (subterranean). The subterranean flower heads contain two types of cypsela, while in the aerial flower heads three different types can be found, which are located next to the involucre, encircling the centre and at the centre of the receptacle respectively. The subterranean cypselas occur between February and April, are fewer in number, but much larger and heavier than aerial cypselas.
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The simple inflorescences occur singly or in pairs in the axils. The obloid to cylindrical shaped flower-heads contain 43 to 49 golden coloured flowers. The flower-heads are around in length and with a diameter of . The linear brown seed pods that form after flowering are raised over the seeds.
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One plant produces many small yellow flower heads in a large branching array at the top of the plant.
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The spherical flower-heads have a diameter of and contain 27 to 35 golden flowers that are sharply inflexed.
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Leaves are divided in thin, narrow segments. Flower heads each contain 115–200 disc flowers but no ray flowers.
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The flowers appear from October to May. The daisy- like flower heads are 1–2 cm in diameter, with 2–13 white or mauve rays and a central yellow disc. Flower heads can appear in great numbers and be highly conspicuous. The plant is eaten by caterpillars of the moth species Amelora milvaria.
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One plant can produce more than 250 small yellow flower heads in branching arrays at the tops of the stems.
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Its flower heads emerge in the late summer through fall and show deep lavender to purple rays with yellow centres.
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The inflorescence is a wide cluster of flower heads, each enveloped in an involucre of rows of bright white phyllaries.
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Flowers: Numerous flower heads which cluster into a flat top, each on its own flower stalk; center flower heads tending to open first. Inflorescence is completely covered in white hairs and appears in groups of seven. Clusters composed of ray florets, with long yellow rays, tube long. Internal florets, with yellow corolla with long lobes.
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P. cynaroides is a woody shrub with thick stems and large dark green, glossy leaves. Most plants are one metre in height when mature, but may vary according to locality and habitat from in height. The "flowers" of P. cynaroides are actually composite flower heads (termed an inflorescence) with a collection of flowers in the centre, surrounded by large colourful bracts, from about in diameter. Large, vigorous plants produce six to ten flower heads in one season, although some exceptional plants can produce up to forty flower heads on one plant.
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Flower heads are 1-15 per branch, with both ray florets and disc florets, the flowers pale pink to rose- purple.
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Flower heads are compound, hemispherical and white with a yellow centre resembling a poached egg and measure 20-40mm in diameter.
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It is also known as a flavoring for soup. In some areas, the flower heads are considered to be an aphrodisiac. In Ghana and Côte d'Ivoire, the spiky flower heads are tied to the ankles of toddlers to encourage them to learn to walk; the spikes keep them from sitting down. All parts of the plant are used.
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Flowering takes place from late winter to early summer. The inflorescences are dome-shaped flower heads rather than spikes as many other banksias, and arise from stems that are around a year old. No lateral branchlets grow outwards from the node where the flower head arises. The flower heads measure in diameter, and bear 60 to 100 individual flowers.
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The stems branch toward the ends and are densely foliated in toothed, wavy-edged, glandular leaves 2 to 15 centimeters long. The stems and leaves are sticky with exudate. The inflorescences contain clusters of many flower heads, each cylindrical head wrapped in long, flat glandular phyllaries. The flower heads are discoid, containing only disc florets and no ray florets.
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They bear woolly, cottony heads of flowers. They have narrow strap-shaped untoothed leaves. The flower heads are small, gathered into dense, stalkless clusters. The fruits have a hairy pappus, or modified calyx, the part of an individual disk, ray or ligule floret surrounding the base of the corolla, in flower heads of the plant family Asteraceae.
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Individual flowers are tetramerous, with a four-lobed epicalyx and calyx and a four-lobed corolla. Male and female flowers are produced on different flower heads (gynodioecious), the female flower heads being smaller.A photographic guide to Wildflowers of Britain and Europe by Paul Sterry and Bob Press The flowering period in the British Isles is from June until October.
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Three types of flower head are distinguished: brush, tube and gullet. The flower heads of most species are of the brush-type. Flower heads of the brush-type have large perianths, pollen presenters and often bracts in bright and contrasting yellow, white or red. The subtending leaves do not differ from other leaves and remain green throughout flowering.
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Leaves, stems, and the bracts surrounding the flower heads are covered with long and conspicuous hairs up to long. Leaves are up to long, with no teeth on the edges. One stalk will produce 10-12 flower heads in a conical or nearly cylindrical array. Each head has 30-60 yellow ray flowers but no disc flowers.
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The gray-green leaves are long and cut into many triangular, pointed lobes. The longest, near the base of the plant, may reach 40 centimeters (16 inches) in length. The inflorescence is an open array of flower heads at the top of the stem branches. Each of the many flower heads is enveloped in smooth or hairy phyllaries.
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Its fragrant, daisy-like flower heads are in shades of yellow or white, and flower heads may have an orange to red "button" in the center of the flower head, composed of several immature flowers.Susan J. Wernert, Reader's Digest Association, Brenda Jackson. North American Wildlife: An Illustrated Guide to 2,000 Plants and Animals. Readers Digest, 1998. p.467.
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The petiole is 2 to 3 millimeters long has sparse hairs or none at all. ;Flowers:"Capitula radiate" or "flower heads with yellow ray florets". Numerous flower heads that appear congested to lax in spreading terminal compound clusters that start at different places but end making a flat surface with the others. Flower stalks have hairs.
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Leaves are spirally arranged, 5–18 cm long, simple, and slightly hairy. The flower heads range from pastel yellow to deep orange, and are 3–7 cm across, with both ray florets and disc florets. Most cultivars have a spicy aroma. It is recommended to deadhead (remove dying flower heads) the plants regularly to maintain even blossom production.
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Inflorescences are often in the form of a spike or raceme made up mostly of staminate flowers with some pistillate clusters around the base. Staminate flower heads have stamens surrounded by whitish or purplish florets. Pistillate flower heads have fruit-yielding ovules surrounded by many phyllaries and fewer, smaller florets. The pistillate flowers are wind pollinated,Genus Ambrosia.
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M. rubicaulis is a large, straggling, very prickly shrub. It flowers from June to September, sporting long clusters of many pink spherical flower heads 1–1.5 cm across. The flowers fade to white, so the clusters sport both pink and white flower- heads most of the time. Leaves are double-compound, 8–15 cm long, with thorny rachis.
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They sometimes have slightly toothed edges. Flower heads are solitary or borne in open arrays or clusters in the leaf axils. The peduncles that hold the flower heads have bracts with one or more tack-shaped glands. The head usually has one or more phyllaries stuck to the ray florets; these often have similar tack-shaped glands.
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The leaves are linear (long and very narrow) and up to long. The inflorescence bears one or more flower heads at separate nodes, surrounded by short bracts tipped with resin glands. The hairy flower heads have a center of many purple-tipped disc florets as well a few yellow ray florets. The fruit is an achene.
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The web is usually constructed among flower heads, the spider sitting in full view beside the web on a pad of silk.
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One plant can produce many small pink or purple flower heads, each head with 5-10 disc flowers but no ray flowers.
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The flowering season is from March to May or June, but flower heads sometimes occur in any other part of the year.
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One plant can produce up to 320 small yellow flower heads in a showy, branching array at the top of the stem.
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One plant can produce as many as 200 small yellow flower heads in a branched array at the top of the plant.
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One plant can produce as many as 300 small yellow flower heads in a branching array at the top of the plant.
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One plant produces several flower heads, each a long flower stalk, each head with 60-150 disc flowers but no ray flowers.
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It produces numerous yellow flower heads containing both disc florets and ray florets.Flora of North America, Bidens amplissima Greene, Pittonia. 4: 268. 1901.
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The flower heads contain many yellow disc florets and no ray florets. Flowering occurs in May through August.Sphaeromeria simplex. Flora of North America.
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Stem is thin. Leaves are highly dissected. Flower heads are yellow, each containing 6 ray florets and 11 disc florets.Klatt, Friedrich Wilhelm 1889.
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Each stem produces one or a few flower heads, each with pink or lavender ray florets and white or pale yellow disc florets.
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The ornamental pincushion can be distinguished by its spreading habit, with horizontal branches, leaf-shapes that range from oblong with teeth in the earliest growth of the season to entire and oval closer to the flower heads. The flower heads are generally at a right angle to the branch it grows from, on the peranth lobes are only some soft hairs and the pollen presenter has a skewed shell shape. The closely related L. patersonii is more tree-like, with larger, less variable, broadly oblong leaves that consistently have three to eight teeth near the tip, woolly perianth lobes and upright flower heads.
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The stem branches about midway up and bears several flower heads in a wide open inflorescence. Each head is a hairy hemispheric cup of sharp-tipped phyllaries which can be up to a centimeter long. The flower heads are discoid, containing only disc florets, but some of them are flat enough to resemble ray florets or petals. The florets are white to pink.
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Leaves are narrow, up to 5 cm (2 inches) long. The plant produces numerous flower heads in a cluster at the top of the stem, each head with 8-21 yellow disc flowers but no ray flowers. The species is named "pluriflora", 'many flowered', for its up to 25-50 vertical and approximately parallel stalks, tipped with yellow golden flower heads.
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Protea sulphurea flower heads are pendulous; they hang upside down. The brightly-coloured involucral bracts are visible in this photograph. The flowers are produced from April to August, densely packed together within large inflorescences. These inflorescences, or more specifically pseudanthia (also called 'flower heads'), are almost sessile (having a very short and indistinct peduncle), and hang downwards towards the ground.
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The inflorescence is made up of a few spherical flower heads each around a centimeter wide. The female flower heads develop into spherical fruit clusters each made up of many hairy, maroon-red-woolly achenes. The tough and coarse-grained wood is difficult to split and work. It has various uses, including acting as a meat preparation block for butchers.
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Bell-shaped woolly flower heads contain small yellowish disc florets.Artemisia porteri. Flora of North America. This plant grows in the badlands of central Wyoming.
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The original specimen was collected from Gloucester Tops in January 1967. This plant features glossy dark leaves and appealing flower heads, forming in spring.
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The flower heads are about 5 cm in diameter, creamy, sometimes with a tinge of pink or purple. The flowerheads are solitary and terminal.
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They also appear in the 2010 movie. They are played by Imelda Staunton, whose head was filmed and digitally added to the Flower Heads.
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It blooms from April to July. Flower heads are wide, and sunflower-like, with 10-21 fringe-tipped ray flowers and numerous disc flowers.
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Flower heads are yellow, with both ray florets and disc florets.Flora of North America, Coreopsis pubescens Elliott, Sketch Bot. S. Carolina. 2: 441. 1823.
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Rooi is the Afrikaans word for red, and refers to the scarlet colour of new growth and the leaves that subtend the flower heads.
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Leaves are lance-shaped, up to 10 cm (4 inches) long. Flower heads are yellow, in elongated arrays at the tops of the stems.
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Flower heads are sometimes produced one at a time, sometimes in small groups, each head with light purple disc florets but no ray florets.
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Often classified in Rhus in the past, they are distinguished by the leaves being simple (not pinnate) and the 'smoke-like' fluffy flower heads.
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Its flower heads have white ray florets. Common names include flax- leaf fleabane, wavy-leaf fleabane, Argentine fleabane, hairy horseweed, asthma weed and hairy fleabane.
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The flower heads of Catamixis contain florets with ligulate corollas only, a trait shared with the Lactuceae, but also with Fitchia, Hyaloseris, Dinoseris and Glossarion.
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One plant can produce several flower heads, each on its own flower stalk. Each head contains 13-21 ray florets surrounding 40-50 disc florets.
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The red-collared lorikeet feeds on the flower heads of the Darwin woollybutt (Eucalyptus miniata). It sometimes feeds in the company of the varied lorikeet.
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One plant can produce as many as 230 small yellow flower heads in a narrow, elongate array. The species grows in bogs, marshes, and swamps.
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UKMoths The larvae feed on the flower heads of various Asteraceae species, including Achillea millefolium, Senecio (such as Senecio jacobaea), Anthemis, Jasione and Tanacetum species.
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Pyrethrum was a genus of several Old World plants now classified as Chrysanthemum or Tanacetum (e.g., C. coccineum) which are cultivated as ornamentals for their showy flower heads. Pyrethrum continues to be used as a common name for plants formerly included in the genus Pyrethrum. Pyrethrum is also the name of a natural insecticide made from the dried flower heads of Chrysanthemum cinerariifolium and Chrysanthemum coccineum.
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Felicia heterophylla is a roughly hairy annual plant in the daisy family. It has alternate leaves of 1–5 cm long with an entire margin or few inconspicuous teeth. The flower heads are set individually at the tip of its stems, and contain a whorl of purplish blue ray florets around a center of blackish blue disk florets. Flower heads appear in winter and spring.
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Eryngium mathiasiae is an erect perennial herb 30 to 40 centimeters tall. There is a basal rosette of long lance-shaped leaves, the blades up to 17 centimeters long and lined with sharp-pointed serrations or lobes, borne on petioles several centimeters in length. The inflorescence is an array of flower heads, each surrounded by sharp, spined bracts. The greenish flower heads bloom in small, white petals.
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The simple leaf blades (or if lobed, the terminal lobes) elliptic or lanceolate to oblanceolate or linear. The leaf blades are typically 25–55+ mm long and 2–9 mm wide but plants are variable and blade width can range from 1 to 20 mm. Peduncles holding the flower heads 6–15+ cm long. Phyllaries bracts under the flower heads lance- ovate and 7–9+ mm long.
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Flower heads are on the ends of short branches, usually one at a time but sometimes 2 or 3. Flowers are straw-colored with darker tips.
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The plant produces only a few flower heads compared to other species of goldenrod, the heads borne in branching arrays at the tops of the stems..
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Leaves are pinnately lobed. Flower heads have yellow ray flowers and yellow-orange disc flowers. Achenes are black. The species grows in forests and chaparral brushlands.
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The shoots at the base do not develop roots, the flower heads are medium-sized, larger than in subsp. cotuloides but smaller than in subsp. tenella.
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The flower heads are held in the axis of the phyllodes and stem. The seed pods that form following flowering are covered in light golden hairs.
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Leaves are pinnately lobed with narrow lobes. Each major branch has a group of small yellow flower heads, each with both ray florets and disc florets.
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The plant produces numerous flower heads in flat-topped arrays, each head has 4-10 dark purple (rarely pink or white) disc florets but no ray florets.
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Adults are on wing from April to July in North America. There is one generation per year. The larvae feed on the flower heads of Viburnum cassinoides.
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Doronicum orientale has daisy-like yellow flower heads on long, straight stems, which attract nectar-eating insects. The plants grow to approximately 2 feet (60 cm) tall.
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Flower heads are in tight arrays, each head with numerous whitish flowers with lobed corollas. The plant grows in gravel and caliche soils in desert scrub vegetation.
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Scabiosa ochroleuca, commonly called cream pincushions or cream scabious, is a species of scabious with creamy yellow flower heads. It is native to Europe and western Asia.
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At the base of the style are four line-shaped scales of about 1 mm long. Female flower heads are about 14 mm (0.56 in) in diameter.
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Flower heads are born in racemose or corymbiform arrays. There are no ray flowers, but up to 23 yellow disc flowers.Cronquist, A.J. 1994. Asterales. 5: 1–496.
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Dendrosenecio erici-rosenii grows to 6 meters tall. The old leaves drop off and leave a very slender stem. Flower heads have very prominent yellow ray flowers.
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The aerial flower heads are congested in the center of the leaf rosette, more or less arranged as a low cauliflower. Groups of florets are either functionally male or functionally female. The involucral bracts are overlapping in several series, papery, whitish and have an pointy tip. The aerial flower heads have some semblance to a hedgehog and the hard, dry plants hurt the naked foot if stepped upon.
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The plant produces flower heads with one whorl of white to mauve ray florets around many yellow disc florets, with one or few on top of a dark reddish, woolly stalk. Flower heads appear after the overhead vegetation burnt down, often destroying the leaves in the process. It can be found in the southern mountains of South Africa's Western Cape province. It is called leather leaves in English.
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Leucospermum lineare is an evergreen shrub with linear leaves and is assigned to the Proteaceae. There are two distinct forms that have not been formally recognized as separate taxa. There is an upright form with orange flower heads of up to high, and a sprawling form of in diameter with yellow flower heads. Its common name is needle-leaf pincushion, or narrow-leaf pincushion, in English and smalblaarspeldekussing in Afrikaans.
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Celosia ( ) is a small genus of edible and ornamental plants in the amaranth family, Amaranthaceae. The generic name is derived from the Ancient Greek word (), meaning "burning", and refers to the flame-like flower heads. Species are commonly known as woolflowers, or, if the flower heads are crested by fasciation, cockscombs. The plants are well known in East Africa's highlands and are used under their Swahili name, mfungu.
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In some species, the basal leaves are shed before flowering. The leaf margins are most commonly entire, but often display heavier serration. Some leaves may display trinerved venation rather than the pinnate venation usual across Asteraceae. The flower heads are usually of the radiate type (typical daisy flower heads with distinct ray and disc florets) but sometimes discoid (with only disc florets of mixed, sterile, male and bisexual types).
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Guardiola rosei is a perennial herb up to tall, hairless and covered with wax so as to appear whitish. flower heads contain both ray flowers and disc flowers.
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A revision of the genus Borrichia Adans. (Compositae). Annals of the Missouri Botanical Garden. 65: 681–693. Borrichia arborescens produces yellow flower heads in late spring and summer.
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It produces up to three yellow flower heads per branch, each had containing both disc florets and ray florets. The Plant grows in meadows and along mountain streams.
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Flower heads are born in tight glomerules (clumps) along the upper parts of the stems.A. Nelson. Bulletin of the Torrey Botanical Club 29(6): 406. 1902.A. Nelson.
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Leaves are oblanceolate, up to 30 mm (1.2 inches) long. Flower heads are arranged in cymous fashion. Ray flowers and disc flowers are both yellow.Nesom, Guy L. 1995.
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The small gray-green leaves are usually lobed. The inflorescence is an array of several flower heads containing yellow ray and disc florets. The fruit is an achene.
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Flowering takes place from July to November, and can be profuse. The disc is cream or yellow and rays are white, the daisy-like flower heads in diameter.
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Curio is a genus of flowering plant in the family Asteraceae. Plants in the genus are evergreen succulents with long, striated leaves and discoid flower heads lacking ray florets.
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Chrysocephalum semipapposum (clustered everlasting or yellow buttons) is a perennial herb in the family Asteraceae. It produces yellow terminal flower heads in clusters, mainly between spring and early summer.
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Baccharis texana is a shrub or subshrub up to 60 cm (2 feet) tall, with narrow leaves and many small flower heads. It grows in grasslands, hillsides, and mesas.
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Flower heads are solitary. There is one yellow (or white with red veins) ray flower per phyllary, with 3-lobed ligules. The yellow disk flowers are narrowly funnel shaped.
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The inflorescence has clusters of flower heads each up to about a centimeter long. Each contains white or off-white disc florets and usually a few white ray florets.
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Felicia canaliculata looks similar to the widespread species F. filifolia, from which it mainly differs in being covered in felty hairs, and the large flower heads with lush bracts.
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U. affinis is multivoltine and overwinters as a larva in knapweed flower heads. In June, adults oviposit on seed heads. Each female can produce about 120 eggs.Zwolfer H. 1970.
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Flower heads are white or green. The plant grows in pastures, wet meadows, and bogs.Flora of North America Vol. 20 Page 624 Arnoglossum plantagineum Rafinesque, Fl. Ludov. 65. 1817.
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The inflorescence bears cylindrical, oval, or nearly spherical flower heads each 2 to 5 millimeters. The head generally has no phyllaries, just a ball of tiny woolly white flowers.
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Flower heads are in large, branching arrays at the ends of branches, sometimes drooping near the top. Each head contains 6–19 ray florets surrounding 5–19 disc florets.
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The burnt skeletons of trees release the seeds from the retained dry flower heads in the season following a wildfire. The seeds are dispersed by means of the wind.
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The phyllaries lining the flower heads are coated in glands. The head contains four to eight yellow ray florets and several yellow disc florets.Deinandra minthornii. Flora of North America.
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This the most prized cut flower in the trade. In 1998, the best flower heads were still said come from the wild, and were often harvested for this purpose.
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Large flower heads form at the tips of the branches, each about 4 cm (1 in) across, with about thirty purplish blue ray florets surrounding many yellow disc florets.
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The spherical flower heads contain 14 to 23 pale yellow flowers. After flowering firm leathery brown seed pods form that are flat to curved with a length of and .
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The inflorescences are specialised structures called pseudanthia, also known simply as flower heads, containing hundred of reduced flowers, called florets. The flower heads are surrounded by 'involucral bracts'; these bracts are coloured a greenish-cream, and at their apexes are fringed with white or beige-coloured beards of hair. It is monoecious, both sexes occur in each flower. The blooms are produced in the autumn, mostly in May to June, extending from March to September.
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Leaves are elliptic to lanceolate, up to long. Flower heads are 1-4 per plant, with yellow flowers.Gray, Asa. Notes on Compositae and characters of certain genera and species, etc.
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The foliage is described to be a red wine-like, and the shrub has deep pink flowers in the summer. The flower heads are usually sparser than in C. coggygria.
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It produces golden or yellow spherical flower heads. The linear, hairy seed pods that forma later are flat but raised over the seeds with a length of and a width of .
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The inflorescence bears one to four flower heads containing yellow disc florets and usually 8 ray florets measuring one half to one centimeter in length. It blooms from July to August.
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The flower heads are yellow sulfur, about five centimeter wide. Involucral bracts vary from seven to eight. Blooms are abundant throughout the Spring. The flowering period extends from March through August.
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The larvae feed on Zygophyllum fabago and other Zygophyllum species such as Zygophyllum oxianum. They possibly also feed on flower-heads of Eremurus. Larvae have also been reared on Tribulus species.
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The plant produces numerous small flower heads in a tight cluster, each head generally containing only 4-5 florets.Flora of North America, Elephantopus carolinianus Raeuschel, Nomencl. Bot. ed. 3. 256. 1797.
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It is branched, with very narrow, needle-like leaves. Flower heads have yellow ray flowers and yellow disc flowers. Achenes are black. The species grows in dry locations in desert regions.
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It has narrow leaves, crowded on the younger stems, which leave a dry, persistent leaf base on older branches. The flower heads lack ray florets but contain many yellow disc florets.
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Solidago leiocarpais a perennial herb up to 35 cm (14 inches) tall. One plant can have as many as 160 small yellow flower heads in a flat- topped or conical array.
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Bellis species are mostly perennials, and grow from tall. They have simple erect stems, and most species have basal leaves. They have radiate flower heads that are produced one per stem.
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Tetramolopium filiforme. The Nature Conservancy. This plant is a very small shrub growing only 15 centimeters in maximum height. It produces narrow leaves and inflorescences of up to 4 flower heads.
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Although flower heads may occur on and off between May and March, the peak season is from September to November. It is known from the Western Cape province of South Africa.
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Carthamus tinctoriusWorldwide safflower production Carthamus tinctorius - MHNT Safflower, Carthamus tinctorius, is a highly branched, herbaceous, thistle- like annual plant. It is commercially cultivated for vegetable oil extracted from the seeds and was used by the early Spanish colonies along the Rio Grande as a substitute for saffron. Plants are tall with globular flower heads having yellow, orange, or red flowers. Each branch will usually have from one to five flower heads containing 15 to 20 seeds per head.
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Although L. prostratum is not closely related, it can easily be mistaken for L. hypophyllocarpodendron that is also a trailing shrub with upright leaves and small yellow flower heads, but that species has leaves with three teeth with bony tips, and the perianth lobes do not separate, but remain attached. L. gracile is another trailing species with yellow flower heads fading to orange, but these are larger and have a flat top, as is best seen from the side.
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The Saldanha felica can only be found growing on limestone ridges and coastal sands, alongside the Langebaan Lagoon, and edging the Vredenburg Peninsula to Paternoster in the north. The flower heads appear to be mainly pollinated by bees. Within one month of opening, the flower heads develop into seedheads. It may grow in the vicinity of the Cape daisy, Dimorphotheca pluvialis, blue flax, Heliophila coronopifolia or in the shade of rooi malva, Pelargonium fulgidum or dikbeen malva, P. gibbosum.
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Leucospermum gracile differs from its closest relatives by its spreading habit, the narrow leaves (less than ½ cm wide), bitten-off at its base, the abruptly pointy inverted lance-shaped bracteoles and the yellow colour of the perianth. It may occur alongside Leucospermum prostratum and shares yellow flower heads that fade to orange, but in Leucospermum gracile these are larger and flat-topped, while the smaller flower heads of Leucospermum prostratum are domed when viewed from the side.
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The leaves are linear in shape and up to 5 centimeters (2 inches) long, sometimes longest toward the middle of the stem. The inflorescence bears one or more flower heads at separate nodes, surrounded by short bracts tipped with resin glands. The glandular and hairy flower heads have a center of several disc florets as well as whitish, triple-lobed ray florets. The fruit is an achene; those arising from the disc florets have a pappus of scales.
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Downy ragged goldenrod Solidago petiolaris is a perennial herb up to 150 cm (5 feet) tall. One plant can produces 190 or more small yellow flower heads in late summer through fall.
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It flowers from June to December in the Northern Hemisphere, producing an array of numerous small flower heads. Each head has as many as 60 yellow ray florets but no disc florets.
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Here, most of the frass is ejected. Older larvae live freely among the flower heads. Larvae have a yellow body and a brown head. They can be found from March to April.
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Many species are used as ornamental plants, with numerous named cultivars such as 'Wayne Roderick', 'Charity', 'Foersters Liebling' and 'Dunkelste aller' ("The darkest of all" with semi- double, deep violet flower heads).
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1 -- Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272. Asanthus squamulosus is a branching shrub up to 100 cm (40 inches) tall. Flower heads have whitish disc florets but no ray florets.
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The flower heads of the small cryptic pagoda M. palustris contain three to six individual flowers, and the leaves in the inflorescence are tightly overlapping, not patent as in both larger species.
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Leaves are narrowly triangular, with the widest part at the tip. Flower heads have yellow ray flowers and yellow disc flowers. Achenes are black. The species grows in forests and chaparral brushlands.
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Galinsoga longipes is a branching annual herb up to tall. Leaves are long. Flower heads are up to across. Each head has 5 white ray flowers surrounding 35-100 yellow disc flowers.
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Flower heads may occur at any time during the year. It is assumed that like other Mimetes species, the cryptic pagoda is pollinated by birds and the seeds are distributed by ants.
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One stalk will produce 2-4 flower heads in a flat-topped array. Each head has 90–120 yellow ray flowers but no disc flowers.Flora of North America, Hieracium flagellare Willdenow, 1814.
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One stalk can produce 1–12 flower heads in a flat-topped array. Each head has 30–60 yellow ray flowers but no disc flowers.Flora of North America, Hieracium parryi Zahn 1922.
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Flower heads have 16-21 ray florets with laminae 20–35+ mm long. The disc corollas are 5.5–7 mm long. Cypselae or fruits are 6–7 mm long and oblong-rectangular.
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The plant produces a flower heads in a hemispheric cluster across. Each head has 40-60 pistillate flowers around the edge of the head plus 3-5 bisexual florets toward the center.
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It has numerous yellow flower heads with both ray florets and disc florets. Fruits are dry achenes bearing barbs that get caught in fur or clothing, thus aiding in the plant's dispersal.
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The wings are dusky grey with numerous black and dull white wavy transverse lines. Adults are on wing in January and February. The larvae feed inside the flower heads of Celmisia lindsayi.
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One plant can produce as many as 40 flower heads. Each head has 7–14 yellow ray flowers surrounding 25-150 yellow disc flowers.Flora of North America, Tetraneuris torreyana (Nuttall) Greene, 1898.
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Melaleuca pungens is a shrub in the myrtle family Myrtaceae which is endemic to the south-west of Western Australia. It is very prickly, with a large number of spherical, yellow flower heads.
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The plant usually produces numerous flower heads in open, branching arrays. Each head has 12-24 ray flowers, surrounding a large number of tiny disc flowers.Flora of North America, Grindelia decumbens Greene, 1896.
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The -inch flower heads are surrounded by upper leaves of about the same length as the head. Each head has tiny reddish-purple disk flowers with the outer 8–10 being all female.
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Flora of Zimbabwe. These are annual herbs. The alternately arranged, toothed leaves are decurrent, the bases wrapping the stem to form wings. The flower heads are solitary or borne in loose panicle inflorescences.
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The flower heads are about 0.5 inches (1.3 cm) across and have 3-5 golden-yellow ray florets. The flowers are hermaphroditic (have both male and female organs) and are pollinated by insects.
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One stalk will produce 3-40 flower heads in a flat-topped array. Each head has 6-12 yellow ray flowers but no disc flowers.Flora of North America, Hieracium bolanderi A. Gray, 1868.
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Flower heads sometimes can have as many as 170 white ray florets surrounding numerous yellow disc florets.Flora of North America, Erigeron modestus A. Gray, Mem. Amer. Acad. Arts, n. s. 4: 68. 1849.
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Xylorhiza confertifolia is a subshrub up to tall. Leaves are very narrow and linear, generally less than across. Flower heads are borne singly, with white ray and yellow disc flowers.Cronquist, Arthur John. 1963.
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Flower heads are borne singly rather than in arrays of several heads. Male and female flowers are on separate plants. The species tends to grow on slopes or streambanks in moist, rich forests.
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Many species are common weeds. Lactuca species are diverse and take a wide variety of forms. They are annuals, biennials, perennials, or shrubs. Their flower heads have yellow, blue, or white ray florets.
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The lower portion of the leaves are hairless except for along the mid-vein. Flower heads are presented horizontally. 11 to 13, 24 millimeter long ray florets and 40 to 70 disc florets.
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Branched clusters of flowers to tall and wide. The droopy flower heads have 9 to 20 ray florets, 16 millimeters long or no ray florets at all and 90 to 250 disc florets.
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One larva per cob can be observed. Bore holes are observed in cabbage and lettuce hearts, flower heads, cotton bolls, and tomato fruits. Sorghum heads are grazed, and legume pod seeds are eaten.
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It is a federally listed endangered species of the United States.Tetramolopium capillare. The Nature Conservancy. This plant is a spreading shrub growing up to about 80 centimeters long and bearing solitary flower heads.
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One plant can produce as many as 30 flower heads. Each head has 8–14 yellow ray flowers surrounding 25-100 yellow disc flowers.Flora of North America, Tetraneuris argentea (A. Gray) Greene, 1898.
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Felicia fruticosa subsp. brevipedunculata, from the Limpopo Province of South Africa is up to tall and has longer leaves of long and wide and nearly seated pale violet to white flower heads. Felicia fruticosa subsp. fruticosa, from the Western Cape province of South Africa, is no more than 1 m and has shorter leaves of long and wide with flower heads on largely leafless, about long stems. It is sometimes called bosastertjie in Afrikaans. In the wild, flower occurs from August till October.
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The flower heads are grouped in cylindric aggregations in the axils of the higher leaves of the stems. The bracts that subtend each flower head are either small and woody, or enlarged, bright in colour, papery or fleshy. The individual flower heads contain three to thirty-five flowers, relatively few compared to many other Proteaceae genera. This, and the sometimes bright coloration of the leaves and bracts in the inflorescence, result in the flower head functioning more or less as a single flower.
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Dryandra, having more in common with the erect flower spikes of other Banksia taxa. Specifically, Isostylis flower heads have an ovoid axis, suggestive of a greatly reduced flower spike, whereas Dryandra flower heads emerge from a flat receptable. Furthermore, Isostylis has thick follicles with a woolly coating, whereas Dryandra follicles are thin and hairless; and the involucral, common and floral bracts of Isostylis are unlike those of Dryandra. The Isostylis species are all upright shrubs or trees, with a single trunk.
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Yellow-flowered form in cultivation, Hobart The Tasmanian waratah is a large erect shrub up to in height with several stems, although it sometimes grows as a single-stemmed tree to 10 m (35 ft) high. Unlike the New South Wales waratah (T. speciosissima), which has a few stems topped with flowers, the stems of the Tasmanian waratah branch freely, with numerous smaller branches topped with flower heads. Younger branches and flower heads frequently have a coating of brownish hairs.
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Flowering occurs from October to January, and is related to altitude: plants at lower elevations flower earlier than ones higher up. The flower heads, known as inflorescences, are terminal—that is, they arise on the ends of small branches—and are surrounded by small inconspicuous hairy bracts. This sets T. truncata apart from all other waratah species, which have hairless bracts. In the shape of a flattened raceme, the flower heads are in diameter and composed of 10 to 35 individual flowers.
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Phillips, in describing P. marlothii, found the most similar species to be P. pendula, and also P. sulphurea, but differing in having the flower heads being erect and opening upwards, as opposed to hanging.
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One plant can produce many small, yellow flower heads, each with 14–24 disc florets but no ray florets.Flora of North America, Ericameria crispa (L. C. Anderson) G. L. Neson, Phytologia. 68: 152. 1990.
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The plant produces numerous small flower heads in a tight cluster, each head generally containing only 4-5 florets.Flora of North America, Elephantopus elatus Bertoloni, Mem. Reale Accad. Sci. Ist. Bologna. 2: 607. 1850.
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This plant displays as a branched herb with cylindrical, grayish roots, growing up to 70 cm tall. The solitary flower heads are in diameter, with yellow florets. The achenes are compressed and narrowly winged.
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Galinsoga durangensis is a branching annual herb up to tall. Leaves are up to long. Flower heads are up to across. Each head has 8-13 ray flowers surrounding about 30-65 disc flowers.
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It flowers from August to October producing yellow flowers. The simple inflorescences occur singly or in pairs per node. The spherical to obloid flower-heads have a diameter of around and contains 20 flowers.
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One stalk can produce as many as 50 flower heads in a flat-topped array. Each head has 20–50 yellow ray flowers but no disc flowers.Flora of North America, Hieracium megacephalon Nash, 1895.
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Chionodes esor is a moth in the family Gelechiidae. It is found in North America, where it has been recorded from Florida.Chionodes at funetmothphotographersgroup The larvae feed on the flower heads of Borrichia arborescens.
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One plant can produce 1-5 flower heads, each with 12–18 yellow ray florets surrounding as least 100 red or brown disc florets. The species grows in wet sandy soils at low elevations.
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The flower heads are born in paniculiform arrays. The ray florets are blue, pink, purple or white, while the disc florets are pale yellow, turning pink with age.G. L. Nesom, Phytologia. 77: 280. 1995.
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The inflorescence is an open array of flower heads with a fringe of violet ray florets around a center of yellow disc florets. The fruit is a hairy achene with a long white pappus.
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Leaves are crowded together and generally originated vertically rather than horizontally, up to 7.5 cm (3 inches) long. Flower heads are yellow, in a large, branching, conical array at the tops of the stems.
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One plant can produce as many as 30 flower heads. Each head has 7-10 yellow ray flowers surrounding 40-150 yellow disc flowers.Flora of North America, Tetraneuris ivesiana Greene, Pittonia. 3: 269. 1898.
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Kew Bulletin 55(1), 1-41. These are trees and shrubs with alternately arranged leaves. They are dioecious, with male and female flowers occurring on separate individuals. The flower heads are somewhat disc-shaped.
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The inflorescence is a wide, spreading array of many flower heads, each lined with green- or black-tipped phyllaries. The heads contain yellow disc florets and most have very tiny yellow ray florets as well.
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The periodic wildfires which occur in its habitat will destroy the adult plants, but the seeds can survive such an event safely stored in the old flower heads. Pollination occurs through the action of birds.
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The edges are deeply cut into narrow, sharp-pointed lobes. The inflorescence is an array of somewhat rounded flower heads surrounded by several narrow, pointed bracts with spiny edges. The head blooms in whitish petals.
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2(1): 84. 1859. Baccharis bigelovii is a shrub up to 100 cm (40 inches) tall, branching from the base. It produces many small flower heads. The plant grows on rocky ground in coniferous forests.
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Flower heads can be found from August to November, peaking in September. It is assumed that like other Mimetes species, the three-flowered pagoda is pollinated by birds and the seeds are distributed by ants.
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It produces many small flower heads with cream- colored disc florets but no ray florets. It is found in roadside ravines in tropical deciduous forest. The species is named for Mexican botanist Jaime Jiménez Ramírez.
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Perennial. Base woody. Leaves in a single large basal rosette up to 1 m across; pinnatifid, wooly, with a pointy tip. Scape up to 1.5 m, without bracts. Inflorescence an umbellate group of flower heads.
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Galinsoga caligensis is a branching annual herb up to tall. Leaves are egg-shaped, up to long. Flower heads about across. Each head has 4-8 white ray flowers surrounding 35-75 yellow disc flowers.
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Cavea is a perennial herb with stout, woody and mostly branched rootstocks of 10–30 cm long, which carry a basal leaf rosette and unbranching stems that carry some smaller leaves, bracts and flower heads.
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One stalk can sometimes produce as many as 50 flower heads in a flat-topped array. Each head has 8-30 yellow ray flowers but no disc flowers.Flora of North America, Hieracium paniculatum Linnaeus, 1753.
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The inflorescence generally contains 2-20 flower heads per stem. Each head contains 75–150 white, lavender or blue ray florets surrounding many yellow disc florets.Flora of North America, Erigeron speciosus. Showy fleabaneEastwood, Alice 1896.
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It has narrow, lanceolate leaves up to 8 cm (3.2 inches) long and yellow flower heads arranged like a corymb.Candolle, Augustin Pyramus de. Prodromus Systematis Naturalis Regni Vegetabilis 5: 315. 1836.Scoggan, H. J. 1979.
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Flower heads are small and inconspicuous, as the plant is wind-pollinated. The heads develop into spiny burs as the seeds ripen.Flora of North America Vol. 21 Page 15 Ambrosia bidentata Michaux, Fl. Bor.-Amer.
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Flower heads can either be one on a stem, or clustered in tight clumps. Each head has 12–26 ray flowers surrounding 25–180 disc flowers.Flora of North America, Tetraneuris scaposa (de Candolle) Greene, 1898.
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Flower heads are brilliant yellow with maroon or brown disc florets of various sizes. Flowering typically occurs in mid-summer. The small, slender seeds germinate in fall (overwintering as a low rosette) or early spring.
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One plant can produce as many as 14 small flower heads, each with up to 100 yellow ray florets but no disc florets.Flora North America, Rough hawksbeard, Crepis biennis Linnaeus, Sp. Pl. 2: 807. 1753.
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One plant can have more than 100 small flower heads, each with 6-10 yellow ray florets but no disc florets.Flora of North America Elegant hawksbeard, Crepis elegans Hooker, Fl. Bor.-Amer. 1: 297. 1833.
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It blooms in the summer, from January to February. Rodents pollinate the flowers, and are attracted to the yeasty scent of the flowers. Acomys subspinosus, Aethomys namaquensis, Myomyscus verreauxii, Rhabdomys pumilio and Elephantulus edwardii have often been caught around rodent-pollinated proteas, and all foraged upon the flower heads in a laboratory setting. E. edwardii, which is in fact not a rodent but an elephant shrew, only licked the tops of the flower heads, but is thought to thus likely pollinate the florets anyway.
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Its flower heads are bright yellow spherical clusters. Very few flower heads are produced at a time, but flowering occurs over a long period, from early spring to late summer, between September and May. This is unusual for Acacia species, which normally flower in one brief but impressive display. Both the common and species names refer to the appearance of the pods when first open in late spring: each shiny black seed is encircled by a thick orange-red stalk, resembling a bloodshot eye.
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George published the series in his 1996 "New taxa and a new infrageneric classification in Dryandra R.Br.", naming it from the Latin capitulum ("head") and -ella (the feminine diminutive), in reference to the small flower heads. It was defined as containing two species, D. serratuloides (now Banksia serratuloides) and D. meganotia (now Banksia meganotia), the former being designated the type species of the series. Both species small lignotuberous shrubs with small flower heads, short leaves, and very small elliptical follicles. George's placement and circumscription of D. ser.
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A rosette may produce several flowering stems at a time. The flower heads are 2–5 cm (1" to 2") in diameter and consist entirely of ray florets. The flower heads mature into spherical seed heads sometimes called blowballs or clocks (in both British and American English)"blowball" entry, Collins Dictionary"Blowball", InfoPlease Dictionary"Clock", American Heritage Dictionary containing many single-seeded fruits called achenes. Each achene is attached to a pappus of fine hair-like material which enables wind-aided dispersal over long distances.
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Often the cluster droops with the flower heads at the end of the cluster turning upwards. Flower stalks are mostly hairless or with some short hairs, to long. Flower heads are attached to flower stalk by fine pointed 8-11 bracts to which are surrounded by 4-7 pale green and sometimes purple tinged at the base supplementary bracts, 1.5 millimetres to 2.5 millimetres which make a cup shape around the base of the involucre. Each stalk is capable of producing 10-15 disc florets.
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Leucospermum gracile is a low spreading shrub of 30–40 cm (1–1⅓ ft) high and forms open mats of 1½ m (5 ft) in diameter, from the family Proteaceae. It has reddish flowering stems, oblong to linear leaves of 2–4½ cm (0.8–1.8 in) long and 2–5 mm (0.08–0.20 in) wide, with one or three teeth. The initially yellow, later orange flower heads of 2½–3 cm (1.0–1.2 in) in diameter are flat-topped. The flower heads occur from July to October.
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Mairia burchellii is a tufted perennial plant of up to assigned to the daisy family. It has narrow leaves of up to wide, with single main vein and an entire margin. Flower heads only occur after a fire has destroyed the standing vegetation, mostly in November or between February and June. The flower heads sit individually or with a few on the tip of a purplish stalk, with a few narrow bracts, and consist of a row of pinkish ray florets around many yellow disc florets.
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In addition, S. trifoliatum has eglandular pales (the bracts in the flower heads), while the pales of S. asteriscus are often glandular. There remains much disagreement about the best taxonomic treatment of the S. asteriscus complex.
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The name is derived from the Latin word pecten, meaning "comb." It refers to the marginally-bristled leaves or the pappus form. These plants vary in appearance but they usually bear yellow daisy-like flower heads.
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Banksia sessilis var. cordata is a variety of Banksia sessilis (Parrot Bush), with unusually large leaves and flower heads. It is a rare variety that is restricted to the extreme south-west corner of Western Australia.
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100: 457-472. Available online (pdf file). One to 5 flower heads occur per branch, with plants in very favourable conditions producing up to 100 heads per shoot. Each head contains an average of 100 florets.
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The plant produces numerous small flower heads in a tight cluster, each head generally containing only 4-5 florets.Flora of North America, Elephantopus nudatus A. Gray, Proc. Amer. Acad. Arts. 15: 47. 1880. Gray, Asa. 1879.
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The tree is vulnerable to the pest insect Cadra cautella, a moth. The larva bores into the seed to pupate, feeding on the seed interior and filling it with webbing. It also consumes the flower heads.
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The spherical flower-heads contain 20 to 25 bright yellow flowers. The seed pods that form after flowering are up to in length and in width and contain oblong-elliptic shaped seeds that are in length.
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It produces numerous yellow or whitish flower heads containing both disc florets and ray florets. It grows primarily in wet areas such as marshes and streambanks.Flora of North America, Bidens amplissima Greene, Pittonia. 4: 268. 1901.
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The undersides have whitish veins. They emit latex when cut. The flower heads are wide, pale yellow, often tinged purple, with 12-20 ray flowers but no disc flowers. The bracts are also often tinged purple.
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Leaves are long and narrow, up to long. One plant can produce numerous small yellow flower heads in loose, branching arrays. Each head contains 3-8 disc flowers plus a few ray flowers.Powell, Albert Michael. 1979.
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Leaves are narrow and lance-shaped, up to long with prominent teeth along the edges. Flower heads are arranged in flat-topped arrays resembling umbels at first glance. Heads have both ray flowers and disc flowers.
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The simple inflorescences are found with one per node. The spherical flower-heads contain 20 to 30 golden flowers. The linear brown seed pods that form after flowering are up to in length and around wide.
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The plant produces flower heads on long, thin stalks. Each head contains 50-120 white ray florets surrounding numerous yellow disc florets.Nesom, G.L. and J.F. Pruski. 2011. Resurrected species of Erigeron (Asteraceae: Astereae) from Central America.
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The flower heads are yellow in color and spherical in shape, around 1 centimeter in diameter each, and often borne in clusters.Plants of the Adelaide Plains and Hills. Library of South Australia. Accessed 21 March 2011.
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Arctium minus can grow up to 1.5 meters (1 to 5 feet) tall and form multiple branches. It is large and bushy. Flowers are prickly and pink to lavender in color. Flower heads are about wide.
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The plant is a perennial rarely more than 17 cm (6.8 inches) tall. Leaves are up to 2.0 cm (0.8 inches) long. Flower heads are yellow, in flat-topped arrays of no more than 20 heads.
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1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272 Conoclinium dissectum is a perennial often forming tight clumps. One plant generally produces several flower heads, each with lavender or purple disc florets but no ray florets.
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The flower heads are of yellow florets with an outer row of bracts. The plant is typically in height. The leaves have angular teeth on their margins.Parnell, J. and Curtis, T. 2012 Webb's An Irish Flora.
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One plant can produce 10–85 flower heads in a branching, flat-topped array. Each head has 10–16 yellow ray flowers and 50-100 tiny yellow disc flowers.Flora of North America, Hymenoxys subintegra Cockerell, 1904.
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Flower heads are yellow, usually in clumps of 2 or 3, each head containing both disc florets and ray florets.Flora of North America, Ericameria obovata (Rydberg) G. L. Nesom, Phytologia. 68: 152. 1990. Rydberg, Per Axel 1900.
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The inflorescence is a cluster of fuzzy flower heads under a centimeter long containing long, protruding white disc florets and no ray florets. The fruit is an achene a few millimeters long with a rough bristly pappus.
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Case examples include the new buds of Onopordum from Israel, Carthamus sp. from Greece, flower heads of Arctium tomentosum from Estonia, a fledgling leaf of Tussilago farfara from Estonia, and new fronds of Osmunda japonica from Japan.
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28: 294. 1974. Arnoglossum floridanum is a plant growing up to 100 cm (40 inches) tall. Flower heads are white or pale green. The species grows in dry sandy ridges and pine-oak forests in central Florida.
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Flora de Chiapas. Listados Listados Florísticos de México 4: i–v, 1–246. Brickellia kellermanii is a subshrub up to 100 cm (40 inches) tall. It has numerous small flower heads with white or pale purple flowers.
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1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272 Brickellia wendtii is a subshrub up to 100 cm (39 inches) tall. It has numerous small flower heads with cream-colored or pale green flowers.Turner, Billie Lee 1990.
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It produces many small flower heads with pale yellow-green disc florets but no ray florets. It grows in most pine and oak woodlands at low elevations.Flora of North America, Brickellia cordifolia Elliott, Sketch Bot. S. Carolina.
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Galinsoga boliviensis is a branching annual herb up to tall. Leaves are up to long. Flower heads are up to across. Each head has 4-8 white (occasionally pink) ray flowers surrounding about 26 yellow disc flowers.
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II. Muscidae acalypterae, Scatophagidae. Paris: Éditions Faune de France 28 Bibliotheque Virtuelle Numerique pdf The larvae feed on the flower heads of Asteraceae (Chondrilla juncea, Cirsium arvense, Cirsium vulgare, Hieracium umbellatum, Hypochaeris radicata Sonchus arvensis , Taraxacum officinale ....). .
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It is a very woolly annual, growing 4–20 cm tall. The leaves are wooly on both sides. They are 1 to 5 cm long, narrow oblong shaped. The flower heads are 3 to 4 mm long.
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It produces a tightly packed corymb of up to 100 small flower heads. Flowers are yellow, sometimes lacking ray flowers, other times with only a single ray flower per head. Each head has 5-8 disc flowers.
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One plant will usually produce 2-5 flower heads per stem. Each head has 5-13 white ray florets surrounding numerous yellow disc florets.Flora of North America, Eucephalus gormanii Piper, 1916. Gorman’s aster Piper, Charles Vancouver 1916.
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The plant has an unpleasant scent. The leaves vary in shape and size, the ones higher on the stem becoming smaller. The inflorescence is a compact or spreading array of 15 to 50 or more flower heads.
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The inflorescence produces hairy, glandular flower heads filled with yellow disc florets and a fringe of up to 125 thin, flat white to purple-tinged ray florets. The fruit is an achene with a pappus of bristles.
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The inflorescence is an open array of flower heads amidst leaflike bracts. The flower head contains many pale violet to nearly white ray florets and a center of yellow disc florets. The fruit is a hairy achene.
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It grows to tall, and flowers mainly from May to August. C. montana may be distinguished from other Centaurea species in the region by its usually entire leaves, and the blue-purple colour of the outermost ray florets. It may be distinguished from the cornflower, Centaurea cyanus, by having a single (rarely up to three) flower heads, and by its being perennial, whereas the cornflower has many flower heads and is annual. The closely related C. triumfettii has more narrowly winged stems, narrower leaves and grows in rockier areas.
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It blooms from July to October, with the peak being in early September. It only produces a few, small, greenish- cream flower heads close to the ground level. These flower heads are positioned laterally on the stems (not at the tips, so with leaves growing above them), are cup-shaped, only 3 to 4.5 cm in width, this including the 22-28 mm long bracts of a "creamy green to apple-green" colour, which surround the actual flowers. The upper margin of the bracts are tipped with velvety brown hairs.
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Along with the leaves, the stem tissue is photosynthetic, giving the plant a high photosynthetic capacity. G. microcephala typically flowers July to October, but this can vary depending on the amount of precipitation. A close up of Gutierrezia microcephala flower heads When flowering, the tips of stem branches are occupied by sessile inflorescences of 5 or 6 flowers. The knobby, waxy yellow flower buds open into golden yellow flower heads, each of which has one or two disc florets between in diameter, and one or two ray florets between in diameter.
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The large flower heads are set individually on top sparingly hairy, towards the top more densely hairy, up to long stalks with some small leaves along their lengths. The involucre is about 1 cm in diameter and consists of about four rows of lance-shaped, green, overlapping bracts, often with the margin tinged reddish, hardly papery and ciliate towards the tip. The outer involucral bracts are about long and wide with long hairs, the inner bracts long and 1 mm wide with fewer long hairs. The flower heads never have ray florets.
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Leucospermum lineare is an upright evergreen shrub of up to high, or a sprawling shrub of in diameter. The branches that bear flower heads are hairless in diameter, and may either be upright or spreading horizontally. The leaves are linear in shape and flat or with the margins rolled inwards, long and wide, pointing at an angle upwards, with two or three teeth near the leaf tip or without teeth. The flower heads are usually solitary or grouped with two or three, have a flattened egg-shape, are in diameter, atop a stalk of long.
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Each flowering head of B. alba, which is small, appears in radial symmetry. The flowers on this plant are depicted as daisy-like due to the larger white petals and the very small yellow flowers which are located at the end of the branches. Colors of the flower-heads of Bidens alba vary depending on the subspecies; some B. alba have yellow, tubular central blossoms and others may have flower-heads with white or cream petals ( long); eventually they form black linear seeds, yielding approximately 1200 seeds per plant.
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Mairia petiolata is a tufted, variably hairy, perennial plant of up to assigned to the daisy family. Its leaves are in a ground rosette, and have a stalk of mostly long and an inverted egg-shaped to elliptic, 6–9 cm (2.6–4.6 in) long and wide leaf blade, with a toothed margin. It mostly has two flower heads at the tip of the branches of each erect, dark reddish brown scape. The flower heads have a bell- to cup-shaped involucre that consists of 20–24, purplish, overlapping bracts in 3–4 whorls.
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Like some other Ambrosia, the male and female flower heads are clustered separately on the inflorescence. The female head has a single floret while the male head contains several. The fruits are contained within a spiny bur.Ambrosia linearis.
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Melaleuca oldfieldii is a plant in the myrtle family, Myrtaceae, and is native to the south-west of Western Australia. It is distinguished by its bright yellow flower heads but its distribution is restricted to one national park.
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The flowering stem emerges from the ground to produce a bright red or pink inflorescence containing male and female flowers. The crowded flower heads are covered in scales. The inflorescence is up to 15 to 20 centimeters long.
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Leaves, stems, and the sides of the flower head bear long, sharp spines, hence the name of the plant. Flower heads contain numerous disc florets but no ray florets, the florets off-white sometimes with a purple tinge.
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Most thistles produce a large quantity of nectar and pollen. The large flower heads make them attractive to large butterflies like migrating monarchs. Bumblebees also make use of thistles, gathering the pollen. Hummingbirds sometimes gather nectar from them.
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The flower heads appear in dense clusters in summer and autumn The species occurs in boggy sites and subalpine heathland New South Wales and Tasmania. The species was formally described in 1853 by German botanist Otto Wilhelm Sonder.
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It produces one yellow flower heads per branch, each head containing both disc florets and ray florets. The species grows on coastal sand dunes.José Luis León de la Luz & Alfonso Medel–Narváez. 2013. Acta botánica mexicana 103: 120.
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American Midland Naturalist 2: 145 Solidago inornata is a small perennial herb up to 10 cm (4 inches) tall. Leaves are lance-shaped. Flower heads are each about 3 mm high. Leaves are lance-shaped, firm and rigid.
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American Midland Naturalist 2: 146 Solidago perornata is a perennial herb up to 100 cm (40 inches) tall. Leaves are lance-shaped. The plant produces flower heads in a one-sided display at the top of the stem.
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The stem usually branches and has many alternately arranged leaves. The herbage is hairy, with several different types of long and short hairs. The flower heads are solitary, clustered, or arranged in cymes. They contain purple disc florets.
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Larinus araxicola is a species of true weevil found in the Araks valley in northeastern Turkey. The weevil feeds on Centaurea polypodiifolia L. (Asteraceae). Females lay eggs on the flowerheads, and larvae undergo development inside the flower heads.
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Artichoke contains the bioactive agents apigenin and luteolin.Cesar G. Fraga. Plant Phenolics and Human Health– Biochemistry, Nutrition and Pharmacology. Wiley. p.9 The total antioxidant capacity of artichoke flower heads is one of the highest reported for vegetables.
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The inflorescence is generally a cluster of glandular flower heads with black- tipped yellow disc florets and sometimes one or more tiny greenish or purplish yellow ray florets. The fruit is a flat black achene with no pappus.
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It generally produces 1-22 flower heads per stem. Each head contains 75–150 blue or lavender ray florets, surrounding numerous yellow disc florets.Flora of North America, Erigeron vreelandii Greene, 1905. Sticky tall fleabane Rydberg, Per Axel 1905.
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One plant can produce as many as 800 small yellow flower heads, in large branching arrays at the tops of the stems. The species grows in marshes (fresh water or brackish water) and thickets on the coastal plain.
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Berzelia abrotanoides, commonly known as redlegs, is a species of flowering plant in the family Bruniaceae native to the Western Cape region of South Africa. The foliage and dried flower heads are used in the cut flower industry.
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The flowers are produced in dense flower heads which are 2.5–4 cm diameter, pale yellow, but sometimes tinged pink.Mansfield crop database: Cirsium oleraceum Its specific epithet oleraceum means "vegetable/herbal" in Latin and is a form of ().
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This perennial herb grows with an erect grooved stem up to 90 cm high. The leaves are alternate, pinnatifid and with stalks. The flower heads are 5 cm across and on long stalks. The florets are red-purple.
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Barnadesia arborea Compositae. Curtis's Botanical Magazine 20(1), 25-30. The stems are spiny. The flower heads contain pink, red, or purple florets, including 8 to 13 hairy ray florets and usually either one or three disc florets.
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Atop the stems are inflorescences of flower heads with hairy, glandular phyllaries. The head contains many yellow disc florets with a fringe of small yellow ray florets. The fruit is a hairy achene up to about 2 millimeters long.
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The leaves have lance-shaped blades several centimeters long which are borne on long petioles. The inflorescence holds several flower heads containing many disc florets and usually either 8 or 13 yellow ray florets each about a centimeter long.
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Flower heads are white, with 10–15 disc florets and 3–7 ray florets.Multnomah Falls Wildflowers - Wildflower Search, Ericameria resinosa photos and distribution mapFlora of North America, Ericameria resinosa Nuttall, Trans. Amer. Philos. Soc., n. s. 7: 319. 1840.
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The species was first formally described by the botanist Leopold Trattinnick, the specific epithet means large head and is derived from the Latin words grandis meaning great or large and ceps meaning head in reference to the flower-heads.
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Phytologia 62: 164Plants of the Eastern Caribbean Chromolaena macrodon is a shrub lacking hairs on its herbage. It has opposite leaves with distinct petioles but without glands on the blades. Flower heads are displayed in a flat-topped array.
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Borrichia peruviana is a Peruvian species of flowering plants in the aster family. It is a perennial herb up to 150 cm (60 inches) tall. Flower heads are yellow, with both disc florets and ray florets.Semple, J. C. 1978.
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Galinsoga triradiata is a branching annual herb up to tall. Leaves are egg-shaped, up to long. Flower heads are up to across. Each head has about 3-5 white ray flowers surrounding as 25-35 yellow disc flowers.
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It is a hairless subshrub up to tall. One plant can sometimes produce 200 or more small yellow flower heads in a flat-topped cluster. Each head contains 2-6 disc flowers but no ray flowers.Powell, Albert Michael. 1979.
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Galinsoga macrocephala is a branching annual herb up to 30 (12 inches) tall. Stems are purple with white hairs. Leaves are opposite, egg- shaped, up to long. Flower heads are somewhat larger than in many related species, about across.
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Beechey Voy. 354. 1839. The inflorescence produces one or more flower heads, each up to about long. The flower head is lined with flat, glandular, blunt-pointed phyllaries and contains several white or pinkish tubular flowers with protruding anthers.
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Leaves are up to long. One stalk can produce 5-50 flower heads in a conical or flat-topped array. Each head has 30-60 yellow ray flowers but no disc flowers.Flora of North America, Hieracium scabrum Michaux, 1803.
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The plant grows to around tall and has flower heads in diameter. They appear to tolerate frosts down to a temperature of −6 C readily. Conversely, they can be adversely affected by heat in climates warmer than their provenance.
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It is commonly found in mallee woodlands and plains, where it grows on sunny slopes. Superficially, the flower heads resemble those of the invasive weed African feather-grass (Pennisetum villosum). A. behriana is found in all mainland Australian States.
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Male and female flower heads are borne on separate plants. One plant can have several heads in a flat-topped array.Flora of North America Vol. 19, 20 and 21 Page 403 Shalebarren pussytoes Antennaria virginica StebbinsStebbins, George Ledyard 1935.
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The paired spikelets are arranged in uneven rows and are elliptical and long. The rachis is tinged with purple. Although many flower-heads grow, only a few viable seeds are produced, and propagation is usually by vegetative means.Urochloa mutica.
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Leaves and stems generally have no hairs. One plant usually produces 3-12 flower heads. Each head has 8-13 yellow ray florets surrounding 35 or more yellow disc florets. The plant grows soils derived from sandstone and granite.
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The leaves are up to 5 centimeters long. Most are divided into narrow leaflets. They are coated in short hairs, a distinguishing feature. There are flower heads containing yellow disc florets streaked with reddish veins, and no ray florets.
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Universidad de Antioquia, Medellín. Trixis inula is a much-branched herb up to 300 cm (10 feet) tall. It has lanceolate to elliptic leaves up to 17 cm (7 inches) long. Yellow flower heads are borne in paniculate arrays.
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S. angulatus flower heads have rays (that look like petals) that make it more daisy-like unlike D. odorata which doesn't. It flowers from April to May in Southern Africa and May to July in Australia and New Zealand.
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Farther up the stem, the leaves are smaller 2 to 5 centimeters (1 to 2 inches) long and 3 to 10 millimeters wide. ;Flowers: Flower heads have a flat circular shape and are held straight up by the plant.
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Sida 21: 781–790. Pseudognaphalium saxicola is an annual, covered with a thick coat of dense, woolly hairs. It produces a cluster of 2–4 small flower heads at the tips of the branches.Ballard, Harvey Eugene, & Feller, Danielle Sky.
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The spherical flower- heads contain 19 to 23 pale yellow flowers. Following flowering from around August to November, coriaceous brown to black coloured seed pods form that have more or less straight-sides and are in length and wide.
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Protea foliosa is distinguished from the three other species classified in section Crinitae, P. intonsa, P. montana and P. vogtsiae, by being the one to grow in the form of a shrub with erect branches with terminal, clustered flower heads. Additionally, this is the only species in this group which has its flower heads obscured from sight by its surrounding leaves. P. recondita, which occurs on high mountain slopes further to the west, also has terminal flower heads which are wrapped by the surrounding and subtending leaves and bracts, but in this species the single heads are bourne much higher in the air on erect branches, not near to the ground. P. foliosa has long been confused with P. tenax the first to do so was one of the first, in the early 1830s, collectors of this plant, Drège, who published about this species partially under that name in 1843.
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These are annual and perennial herbs and small shrubs. Species have a basal rosette of leaves and/or leaves alternately arranged on the stem. The blades are entire or divided. The flower heads are solitary or borne in small corymbs.
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They are variable in size, measuring from 3 to 12 centimeters (1.2-8.0 inches) or more in length. The inflorescence is an elongated array of many small flower heads with whitish florets.Iva frutescens. Flora of North America, Iva frutescens Linnaeus, 1753.
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They grow upright to erect and may be crooked or nearly straight. They are often thick and purple in color with age. The leaves vary in size and shape. The flower heads are borne in branching arrays on purplish stems.
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The flower heads are borne in open inflorescences. Each head contains up to about 35 disc florets, usually lavender to dark magenta or pinkish purple, sometimes blue. The fruit is a ribbed, rough-textured cypsela with a pappus of bristles.
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Anthyllis vulneraria reaches of height. The stem is simple or more often branched. The leaves are imparipinnate, glabrous or with scattered hairs on the upper face and silky hairs on the underside. The flower heads are spherical in shape and long.
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Good drainage is required and too much water can kill the plants. Pruning the old flower heads and the stems supporting them down to the ground, will encourage the rhizomes below to send up new growth of flower-bearing branches.
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Production of glands in leaves of Porophyllum Spp. (Asteraceae): Ecological and genetic determinants, and implications for insect herbivores. Journal of Ecology 85:5 647-55. The inflorescence produces narrow flower heads which may be nearly 3 centimeters long when in bloom.
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Cirsium erisithales can reach a height of . The stems are erect, almost hairless. This plant has just a few leaves, with tooth-shaped lobes. Flower heads are lemon yellow, solitary or in groups (up to 5), with a diameter of .
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The largest flower heads exceed in diameter. The heads do not open in synchrony, perhaps allowing greater likelihood of being pollinated.Flora of North America, Western thistle, Cirsium occidentale (Nuttall) Jepson Cirsium occidentale var. compactum, blooming in Hearst San Simeon State Park.
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1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272 Brickellia magnifica is a branching shrub up to 250 cm (100 inches) tall. The plant produces several small flower heads with yellow or purple disc florets but no ray florets.McVaugh, Rogers 1972.
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1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272 Brickellia aramberrana is a branching shrub up to 150 cm (60 inches) tall. The plant produces several small flower heads with yellow disc florets but no ray florets.Turner, Billie Lee 1993.
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Flower head. Blooming in grassland habitat. The plant bears showy red-purple flowers. The large globose flower heads, containing hundreds of tiny individual flowers, are 3–5 cm (rarely to 7 cm) diameter and occur at the tips of stems.
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The vast majority of Asteraceae have pentamerous florets, and several to many florets per flower head. Other asterids that have flower heads with only one floret are Corymbium, Hecastocleis shockleyi, Stifftia uniflora and Fulcaldea laurifolia, but these are pentamerous and hermaphrodite.
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It is a small plant rarely more than 7 cm (2.8 inches) tall though possessing a taproot and hence perhaps capable of surviving inhospitable seasons to act as a perennial. Flower heads have lavender ray florets and yellow disc florets.
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American Midland Naturalist 2: 58 Solidago satanica is a perennial herb up to 80 cm (32 inches) tall. Leaves are lance-shaped. Flower heads are each about 3 mm high. The species appears to be closely related to S. canadensis.
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1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272 Brickellia glomerata produces several flower heads with disc florets but no ray florets. The heads are clumped together in groups called "glomerules," hence the scientific name of the species.Fernald, Merritt Lyndon 1901.
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Sida 21(2): 1175–1185.Biota of North America Program 2014 county distribution map Gamochaeta sphacelata is an annual herb up to tall. Leaves are long and narrow, up to long. The plant forms many small flower heads in elongated arrays.
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Leaves are narrowly egg-shaped or triangular, up to 9 cm (3.6 inches) long. The plant usually produces numerous flower heads in open, branching arrays. Each head has 20-27 ray flowers surrounding a large number of tiny disc flowers.
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Scorzoneroides autumnalis is a perennial herb growing to 35 cm high usually with branched stems and several flower-heads each about 30 mm across. The florets are all ligulate and bright yellow. The leaves are all basal and linear-oblong.
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Galinsoga mandonii is a branching annual herb up to tall. Leaves are up to long. Flower heads are up to across. Each head has 3-9 white or dark purple ray flowers surrounding about 5-40 yellow or purple disc flowers.
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Galinsoga formosa is a branching annual herb up to tall. Leaves are up to long. Flower heads are up to across. Each head has 5-15 white (sometimes with a purplish underside) ray flowers surrounding up to 100 yellow disc flowers.
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The plant forms many small flower heads in elongated arrays. Each head contains 4–6 purple or yellow-brown disc flowers but no ray flowers.Flora of North America, Gamochaeta argyrinea G. L. Nesom, 2004. Silvery cudweed Nesom, Guy L. 2004.
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The plant produces flower heads in clumps of 3–5 at the ends of small branches. Each had contains 3-7 disc flowers but no ray flowers.Flora of North America, Gundlachia triantha (S. F. Blake) Urbatsch & R. P. Roberts, 2004.
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The serrated leaves are up to 16 centimeters (6.4 inches) long and are borne on winged petioles. The inflorescence contains many bell-shaped flower heads. Each flower head contains 7-12 yellow ray florets surrounding 14-27 yellow disc florets.Solidago verna.
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It is a perennial herb sometimes as much as 150 cm (5 feet) tall. The plant usually produces numerous flower heads in crowded, flat-topped arrays. Each head has 18-25 ray flowers, surrounding a large number of tiny disc flowers.
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The inflorescence bears one or more flower heads, each up to long. The head is lined with sticky, twisted, spiny phyllaries and contains pink to purple flowers. The fruit is an achene a long topped with a pappus of about centimeters.
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It flowers between July and August producing the solitary, axillary flower-heads are spherical and contain 24 to 30 golden yellow flowers. The seed pods that form after flowering have a length of up to around and a width of .
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One average plant produces about 130 fruits.Crupina vulgaris. Encycloweedia. California Department of Food and Agriculture. The flower heads often fall off the plant after the seeds ripen, each containing one fruit, or occasionally two in heads that produced two fertile florets.
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A soil pH of around 6.5 is generally safe. The soil should be well- drained, and plants must be kept watered during the growing season. Some plants have strong wiry stems, but those with heavy flower heads may need staking.
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The inflorescence bears flower heads with five bright yellow ray florets, each with three lobes. The center of the head contains six disc florets which are yellow with black anthers. The fruit is a dark brown achene with no pappus.
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A pleasant anise-flavored tea is brewed using the dried leaves and flower heads. This is primarily used medicinally in Mexico and Central America.Laferrière, Joseph E., Charles W. Weber and Edwin A. Kohlhepp. 1991b. Mineral contributions from some traditional Mexican teas.
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W. mirabilis is a branching tree up to 5 m tall. Leaves are broadly ovate to lanceolate, thick, and leathery. Flower heads have a large urn-shaped receptacle with whitish, tomentose phyllaries tapering toward the tip. Flowers are wind-pollinated.
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Its silvery branches carry small, gray-green leaves. The narrow phyllodes are about 8 cm long. Its inflorescence consists of lemon-yellow, globular flower heads, profusely borne in panicles, lasting four to six weeks. This wattle is very popular in cultivation.
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Ageratina ligustrina grows to 4 metres tall, producing flat heads of daisy-like white composite flower-heads in autumn. It is not fully hardy in temperate regions. In cultivation it has gained the Royal Horticultural Society's Award of Garden Merit.
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The inflorescence usually contains 1-3 flower heads. Each head contains 21–36 white or pink ray florets surrounding many yellow disc florets.Flora of North America, Erigeron robustior (Cronquist) G. L. Nesom, 2004. White cushion fleabane Nesom, Guy L. 2004.
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The branching inflorescence can sometimes contain as many as 50 flower heads. Each head contains 37–85 white or lilac ray florets surrounding many yellow disc florets.Flora of North America, Erigeron religiosus Cronquist, 1947. Clear Creek fleabane Cronquist, A.J. 1994. Asterales.
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It blooms throughout they year producing simple inflorescences in groups of 8 to 22 along an axillary raceme with an axis length of with spherical flower-heads that have a diameter of and contain 15 to 30 bright golden flowers.
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Coreopsis californica is an annual herb up to 30 cm (12 inches) tall. It has linear leaves that are generally basal and long. The yellow flower heads have both ray florets and disc florets and appear from March to May.
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It is similar to P. welwitschii, but this species has 60mm diameter flower heads which are usually clustered together in groups of three or four, and young leaves densely covered in hairs, with older leaves retaining pubescence at their base.
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It blooms between September and October and possibly as late as November producing simple inflorescences is found singly or in pairs on a long raceme with densley packed spherical flower-heads that contain 26 to 50 light golden coloured flowers.
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Leaves are whitish and waxy. One plant will usually produce 3-40 flower heads in a large array. Each head has 0-6 purple-violet ray florets surrounding numerous yellow disc florets.Flora of North America, Eucephalus tomentellus (Greene) Greene, Pittonia.
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Leaves are alternate, narrowly linear, green above, white with dense woolly hairs below. Flower heads are arranged in spikes at the ends of branches. There are no ray flowers, only 25-50 yellow disc flowers per head.Candolle, Augustin Pyramus de.
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Dill plants When used as a companion plant, dill attracts many beneficial insects as the umbrella flower heads go to seed. It makes a good companion plant for cucumbers and broccoli. It is a poor companion plant for carrots and tomatoes.
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Banksia subg. Isostylis is a subgenus of Banksia. It contains three closely related species, all of which occur only in Southwest Western Australia. Members of subgenus Isostylis have dome-shaped flower heads that are superficially similar to those of B. ser.
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Pine-barren goldenrod Solidago fistulosa is an herb up to 150 cm (5 feet) tall, spreading by underground rhizomes. It has winged petioles, broad leaf blades, and sometimes as many as 500 small yellow flower heads born in large branching arrays.
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Plane trees are wind-pollinated. Male flower-heads fall off after shedding their pollen. After being pollinated, the female flowers become achenes that form an aggregate ball. The fruit is a multiple of achenes (plant systematics, Simpson M. G., 2006).
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IN: Solidago albopilosa. Center for Plant Conservation. The inflorescence is a cluster of up to 30 flower heads, each roughly half a centimeter (0.2 inches) long. The head contains 3 to 5 tiny yellow ray florets and a few disc florets.
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The inflorescences contain several flower heads. The species is dioecious, with male and female flowers on different plants. The fruit is an achene up to about 6 millimeters long, most of which is the long, soft pappus.Flora of North America Vol.
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Melaleuca subalaris is a plant in the myrtle family, Myrtaceae, and is endemic to the south of Western Australia. It is distinguished by its small, decussate leaves and small flower heads which rarely have more than one flower in each inflorescence.
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The flower heads are in arrays or clusters. They contain up to 50 long yellow or orange disc florets and no ray florets. The fruit is a veiny cylindrical cypsela with a long pappus of many barbed, white bristles.Cacaliopsis nardosmia.
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The inflorescence is a cluster of many flower heads, each of which contains several yellow flowers. Both subspecies are known to hybridize with other Dubautia.Young, A. G. and D. Boshier. (2000). Forest conservation genetics: principles and practice, Volume 1. Csiro.
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They are sometimes unlobed but have toothed margins. The leaves have woolly fibers, especially on the undersides. The flower heads contain long lavender or purplish florets. The fruit is an achene which may exceed 2 centimeters in length including its pappus.
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The silvery blue phyllodes are long and wide and hang vertically from branches. It has terminal inflorescences with an axis that is long. The yellow flower Heads are globular with a diameter of . After flowering brown woody seed pods form.
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Hymenopappus flavescens is a biennial herb up to 90 cm (3 feet) tall. It produces 15-100 flower heads per stem, each head with 20–40 yellow disc flowers but no ray flowers.Flora of North America, Hymenopappus flavescens A. Gray, 1849.
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Hymenopappus radiatus is a perennial herb up to tall. One plant produces 6-8 flower heads per stem, each head 8 white ray flowers surrounding 30–50 yellow disc flowers.Flora of North America, Hymenopappus radiatus Rose, 1891. Rose, Joseph Nelson. 1891.
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One plant can produce an array with as many as 250 small yellow flower heads, each head with 8-9 ray flowers and 25–60 disc flowers.Flora of North America, Hymenoxys brachyactis Wooton & Standley, Contr. U.S. Natl. Herb. 16: 192. 1913.
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Like all Vexatorella species, Leucospermum secundifolium also has bracteoles that become woody and its leaves are stalked, but its flower heads are not at the tip of the branches, and grows on the southern slopes of the Klein Swartberg mountains.
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They are 2–6 cm in length and 1-2.5 cm wide, glabrous on both surfaces and pubescent on the margins, the petioles are 1–4 mm in length. Provided with two thorns (modified stipules), deciduous at the base of the leaves, the flowers are clustered in inflorescences (terminal Flower heads) resembling the hard, scaly flower heads of the familiar, European wildflowers the knapweeds (also members of the Asteraceae). The flowers are white and hermaphrodite, 5 stamens with the anthers attached. The fruit is a cylindrical achene about 3-3.5 mm long and 1 mm wide, pubescent, reddish pappi 5 mm long.
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When the upper and lower counts both equal zero, an absence is inferred for that trait by the ontology using the HermiT reasoner. Plant Ontology anatomy terms were used to enable the ontology to infer the presence or absence of hierarchical phenological traits using the reasoner. For example, if pollen- releasing flower heads are observed to be present (PPO:0002340) with an upper count of five and lower count of five (meaning there are exactly five pollen- releasing flower heads on the observed plant), the reasoned ontology can also infer that floral structures are present (PPO:0002026) on the plant.
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The flower heads are often produced one per stem but are also often produced in corymbiform arrays with 2 to 7 flowers per stem. The cups that hold the flowers called receptacles, are hemispheric to ovoid in shape with paleae 2.5 to 4 mm long, the apices are obtuse to acute in shape with the ends usually glabrous and the apical margins ciliate. The flower heads have 10 to 15 ray florets with laminae elliptic to oblanceolate in shape and 15–25 cm long and 3 to 6 mm wide. The abaxially surfaces of the laminae have strigose hairs.
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Phymata americana feed on a wide variety of prey, most often including small bees, moths, and flies. As their common name suggests, P. americana are sit-and-wait ambush predators, resting on flower heads where they grab visiting insects with large raptorial foreleg weapons. Females can be larger than males, and often have disproportionately longer weapons. Sexual dimorphism in weapon morphology in P. americana may have evolved due to sex differences in prey capture strategies, with females capturing prey from underneath flower heads and males either eating prey already captured by females or capturing smaller prey on plant stems while searching for mates.
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Most of the populations are found in the Rocky Mountains, the Cascades, and the Sierra Nevada.Biota of North America Program 2014 county distribution mapCalflora taxon report, University of California, Antennaria corymbosa E. Nelson MeadowPussytoes, flat top pussytoes, meadow pussytoes Antennaria corymbosa is a small perennial herb growing from a basal patch of thin, gray, woolly, spoon-shaped leaves one or two centimeters long. It produces several erect stems no more than 15 centimeters tall, each holding an inflorescence of several flower heads. It is dioecious, with male and female plants producing different types of flower heads, which are generally similar in appearance.
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The inflorescence contains one or more flower heads, each lined with woolly, green- or red-tipped phyllaries. The head bears up to 13 narrow ray florets which are a distinctive orange or red-orange in color. They may approach 2 centimeters long.
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This species is an interesting feature plant because of its extremely small leaves, unusual twisted branches and colourful flower heads. It has proven to be reliable in cultivation and is suitable for growing in rockeries or tubs, responding to a light annual pruning.
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This small alpine plant grows just a few centimeters tall with one or more woolly stems. The lower leaves have blades one or two centimeters long with woolly undersides. The flower heads have purple-green, woolly phyllaries and no ray florets.Packera castoreus.
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Conoclinium coelestinum can reach a height of about . It has opposite leaves, almost triangular-shaped. On the top this, the plant forms clusters of bright blue, violet or white flower heads, about 1/4 inch long. It flowers from July to November.
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The flower heads are squat and compressed in shape, with a convex, hemispherical receptacle (the bottom of the structure). It is monoecious, both sexes occur in each flower. The seeds are stored in capsules, themselves stored in the dried old flower head.
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It forms a mound just a few centimeters tall. The branches are covered in small, linear leaves. The flower heads each contain 6 or 7 white ray florets and 7 to 9 red disc florets. The fruit has a plumelike white pappus.
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Isopogon ceratophyllus is a prickly shrub, growing to 15–100 cm (6–40 in) tall and to 120 cm (4 ft) across. The oval to round flower heads, known as inflorescences, appear between July and January, and are around 3 cm in diameter.
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Balsamorhiza lanata is an herb up to 30 cm (12 inches) tall. Leaves are covered with dense hairs resembling wool, so they look white. It has yellow flower heads, usually borne one at a time, with both ray florets and disc florets.
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There is one simple inflorescence per axil with globular flower heads containing 30 to 50 flowers. After flowering curved woody red-brown seed pods form that are up to long and . The grey-brown seeds have an oblong shape and are in length.
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It blooms from September to December and produces yellow flowers. The simple inflorescences simple are located singly on each axil. The spherical flower-heads contain 15 to 25 golden flowers. After flowering woody yellow seed podd form that have a narrowly oblong shape.
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These are bluish-green, from in length long, and wide. The flower heads are bright yellow and spherical, and occur in group of six to nine, but sometimes up to fifteen. It flowers in late winter and spring between August and October.
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One plant can sometimes produce as many as 100 flower heads in a tightly packed array. Each head contains 9-14 yellow disc flowers. Sometimes it produces a single yellow ray flower as well.Flora of North America, Flaveria floridana J. R. Johnston, 1903.
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One plant can produce numerous flower heads in a dense spiral array. Each head contains 5-7 yellow disc flowers. some heads contain no ray flowers but other heads in the same cluster may have one yellow ray flower.Powell, Albert Michael. 1979.
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One plant can produce numerous flower heads in a dense spiral array. Each head contains 5-7 yellow disc flowers. some heads contain no ray flowers but other heads in the same cluster may have one yellow ray flower.Powell, Albert Michael. 1979.
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Galinsoga mollis is a branching annual herb up to tall. Leaves are narrow and tapering to a point, up to long. Flower heads are up to across. Each head has about 8 white ray flowers surrounding as many as 150 yellow disc flowers.
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Gaillardia serotina is a North American species of flowering plant in the sunflower family. It is native to the southeastern United States. Flower heads are yellow, each with 12 ray flowers. Leaves are sessile (lacking a petiole), and with teeth along the edges.
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It is usually somewhat woolly in texture. The inflorescences at the ends of stem branches bear small hemispheric flower heads. The golden ray florets are usually about 1 to 2 centimeters long, but specimens from the western San Joaquin Valley have smaller florets.
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The stem bears an inflorescence of several flower heads containing yellow ray flowers but no disc flowers. The fruit is a ribbed achene about half a centimeter (0.2 inches) long with a light brown pappus.Flora of North America, Hieracium traillii Greene, 1900.
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Leaves are both on the stem and at the bottom. Leaves are up to long. One stalk can produce 3-25 flower heads in a conical or flat-topped array. Each head has 25-40 yellow ray flowers but no disc flowers.
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Euchiton sphaericus grows as an erect annual herb up to 80 centimetres (32 inches) high, forming a taproot. Stems are covered with white woolly hairs. Leaves are green and hairless above, white and woolly underneath. The plant produces spherical clusters of flower heads.
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Leaves are up to long, with no teeth on the edges. One stalk will produce 3-12 flower heads in a flat-topped array. Each head has 12-24 yellow ray flowers but no disc flowers.Flora of North America, Hieracium longiberbe Howell, 1901.
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The leaves and the stem are covered with hairs. The plant generally produces 1-4 flower heads per stem, each head with up to 22 blue ray florets surrounding numerous yellow disc florets.Flora of North America, Erigeron mariposanus Congdon, Erythea. 7: 185. 1900.
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Coreopsis hamiltonii typically grows tall or sometimes taller when in bloom. The foliage is low growing, producing bright golden yellow colored flower heads and red purplish tinted peduncles. The foliage is deeply cut with a thin ferny shape.Elmer, Adolph Daniel Edward 1906.
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It produces yellow flowers from April to October. The inflorescences are made up of globular flower-heads made up of 25 to 35 flowers. Following flowering sessile seed pods form that are long and wide. The pods contain oblong seeds around in length.
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The leaves are elongated lanceolate or linear-lanceolate with three veins. Flower head rays are narrow, linear, elongated, and drooping, ranging from long. The flower heads are from wide with pale rose-purple or nearly white ray florets. The flowers have white pollen.
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This is a small, mat-forming, long-lived perennial herb with gray-green, hairy leaves and solitary flower heads. The heads contain whitish or greenish disc florets and a few pistillate ray florets that do not have ligules.Parthenium alpinum. Flora of North America.
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Arthur Haines & Bruce Alexander Sorie. 2005. Botanical Notes 11: 2. Eupatorium novae-angliae is a tall perennial sometimes over 3 feet (90 cm) tall. It has opposite, lance-shaped leaves, and flat-topped arrays of a large number of tiny flower heads.
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One plant usually produces 1-15 flower heads, each containing 12–23 yellow ray florets surrounding 100 or more red, yellow, or brown disc florets. The oldest name for this plant is Helianthus parviflorus var. attenuatus, coined in 1884.Gray, Asa. 1884.
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Tagetes moorei is an perennial herb up to 30 cm (12 inches) tall. Leaves are highly divided, up to 2.5 cm (1.0 inches) long. Flower heads are yellow, each containing about 8 ray florets and 40 or more disc florets.Robinson, Harold Ernest 1973.
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Flower heads can be found off and on throughout the year, particularly in older plants, with a peak between July and December. It is an endemic species that can only be found in part of the Western Cape province of South Africa.
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Helichrysum leucopsideum, commonly known as satin everlasting, is a perennial herb in the family Asteraceae. It is native to southern Australia. It produces terminal flower heads, mainly between spring and early summer. The white bracts spread out or become reflexed with age.
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The whole plant is spiny. The leaves have toothed or lobed blades with spiny edges and sometimes woolly hairs. The flower heads are solitary or borne in inflorescences. The head is hemispherical to bell-shaped and lined with several layers of spiny phyllaries.
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Saussurea laniceps is herbaceous plant that grows tall. It is perennial and monocarpic: individual plants grow slowly (for 7–10 years or more) and die after flowering. Reproductive plants produce a single enlarged inflorescence with 6–36 flower heads. Producing seed requires pollinators.
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Melaleuca condylosa is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is similar to Melaleuca brophyi except that its fruiting clusters are often knobbly and the flower heads and leaves are slightly larger.
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The flowers of Ozothamnus ledifolius are white and small. Orange buds open to white flower heads in late spring. The flowers are clustered with longer stalks and formed a convex flower head (corymbs). They are arranged in a radiating pattern (many stellate).
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Hieronymus' species was therefore assigned to a newly erected genus Famatinanthus, initially retained within the Onoserideae. However, Famatinanthus shares some other characters with the Gochnatieae and Hyalidae, in particular pointy anther tips, and with Hyaloseris (Stifftioideae) opposite leaves and few-flowered flower heads.
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The flower heads are deep golden, globular, and approximately in diameter found in clusters of 24-34 flowers on stalks long. Reddish-brown seed pods form later that are linear that become coiled. The pods are generally long with a width of .
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Jasmolone is an irregular monoterpene. Irregular monoterpenes are derived from two isoprene C5 units, but do not follow the usual head-to-tail coupling mechanism. Jasmolins are found in pyrethrum flowers. They can specifically be found in the flower heads of Chrysanthemum cinerariaefolium.
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Summer's Web Garden, Japanese Wild Flowers, Sonchus brachyotus includes photos Sonchus brachyotus is a perennial herb up to 100 cm tall. It produces flat-topped arrays of several flower heads, each head with 170-300 yellow ray flowers but no disc flowers.
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The nest is a cup-shaped structure hung from the fork of a branch or built in the middle of a bush. It is made from grass stems and flower heads, fine rootlets, slender fibres, hairs and moss. Two to three eggs are laid.
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The inflorescence contains several flower heads, each lined with dark green phyllaries. The head contains many golden yellow disc florets and generally either 8 or 13 yellow ray florets each over a centimeter long. The fruit is an achene tipped with a pappus of bristles.
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The herbage is hairy to woolly in texture. The inflorescence bears several flower heads which are lined with green-tipped phyllaries. They contain many yellow disc florets and each has usually 8 or 13 narrow yellow ray florets about a centimeter long, sometimes longer.
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The inflorescence produces one to ten or more flower heads, which are lined with usually about 21 black-tipped phyllaries. They contain many yellow disc florets and each has usually 13 yellow ray florets about a centimeter long. The bloom period is March through May.
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They are dull green and sometimes toothed. The inflorescence is a small or very large array of flower heads. Each is about a centimeter (0.4 inches) long and has layers of narrow phyllaries. Each head contains several yellow disc florets but no ray florets.
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Hypochaeris is a genus of plants in the dandelion family. Many species are known as cat's ear. These are annual and perennial herbs generally bearing flower heads with yellow ray florets. Estimates of the number of species range from about 50 up to about 100.
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The pappus has simple white hairs, the inner longer than the outer. The flower heads are yellow, small with only 4-5 yellow ray florets. wide more or less, on branches 90 degrees to the main stem, in loose panicle.Webb, D.A., Parnell, J. and Doogue.
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It is coated in long hairs and bristles. The bristly leaves are variously shaped, often divided into many sharp-toothed lobes. The inflorescence bears flower heads on thick peduncles. The head is 1 to 2 centimeters long or more and filled with yellow ray florets.
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The inflorescence is an array of nearly cylindrical flower heads each containing five yellow disc florets but no ray florets. Many flowers are produced after times of stress. Blooming typically occurs in August through October. The fruit is over a centimeter long including its pappus.
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Flora of China, 鳢肠 li chang Eclipta prostrata (Linnaeus) Linnaeus, Mant. Pl. 2: 286. 1771. Altervista Flora Italiana, Falsa margherita , false daisy, tattoo plant, Eclipta prostrata (L.) L. This plant has cylindrical, grayish roots. The solitary flower heads are in diameter, with white florets.
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The inflorescence bears clusters of flower heads lined with shiny, oily, yellow- green phyllaries with transparent tips. The fruit is a tiny achene up to a millimeter long. The plant reproduces from seed except in very rare occasions when it reproduces vegetatively by layering.
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Unlike A. vineale, it is very rare with A. oleraceum to find flower-heads containing bulbils only. In addition, the spathe in A. oleraceum is in two parts.The Reader's Digest Field Guide to the Wild Flowers of Britain p.382.Linnaeus, Carl von. 1753.
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1(2): 224. 1884. It is native to Chihuahua, southern New Mexico, and western Texas.Biota of North America Program, 2014 county distribution map Baccharis havardii is a branching shrub up to 70 cm (28 inches) tall. It has narrow leaves and many small flower heads.
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They are arranged in whorls containing 14 to 18 erect evergreen phyllodes. The adaxially flattened phyllodes are in length and covered in soft ascending to spreading white hairs. It blooms in May and produces yellow flowers. The spherical flower-heads contain 15 to 20 flowers.
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The rather small florets (5 mm long) are radially symmetrical with many yellow or dark red petals. The narrow and numerous capitula (flower heads), all fertile, spread out in racemose panicles. It flowers from mid-summer to early autumn.Parnell, J. and Curtis, T. 2012.
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University Press of Kansas, Lawrence. Berlandiera texana is an herb up to 120 cm (48 inches or 4 feet) tall. It has several flower heads with yellow ray florets and red disc florets. The species is found in dry locations in open woodlands and thickets.
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Balsamorhiza serrata is an herb up to 30 cm (12 inches) tall. Leaves have teeth along the edges, hence the name "serrata." It has yellow flower heads, usually borne one at a time, with both ray florets and disc florets.Nelson, Aven & Macbride, James Francis 1913.
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Each plant has 1-4 flower heads, each with 8-22 yellow ray florets and 50-180 orange or yellow disc florets. The species grows in wet pinelands and savannahs,Flora of North America, Balduina uniflora Nuttall, Gen. N. Amer. Pl. 2: 175. 1818.
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The inflorescences appear in groups of one to four and have spherical flower-heads. The narrowly oblong seed pods that form after flowering are to around in length and wide. The shiny dark-brown seeds within are flat with an oblong to widely elliptic shape.
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Carminatia recondita is a Mesoamerican species of annual plants in the daisy family. Carminatia recondita is an annual herb with opposite leaves. Flower heads are borne in a spiked inflorescence, each head with about 11 greenish disc florets but no ray florets.McVaugh, Rogers 1972.
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This annual herb grows 20 to 50 centimeters tall, sometimes reaching 60 centimeters or more. The leaves and stems are slightly succulent. The lance-shaped or spatula-shaped leaves are borne on winged petioles. The inflorescence is a cyme-shaped array of several flower heads.
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1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272Madrean Archipelago Biodiversity Assessment includes distribution map and photo of herbarium specimen Brickellia megaphylla is a shrub up to 240 cm (8 feet) tall. It produces numerous flower heads in flat- topped arrays.Jones, Marcus Eugene 1933.
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The spherical flower-heads contain 20 to 30 golden coloured flowers. The linear cinnamon brown seed pods that form after flowering are convex over the seeds and are up to in length and wide. The pods contain longitudinally arranged seeds with a length of .
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Sida 21(2): 1175–1185.Biota of North America Program 2014 county distribution mapCalflora taxon report, University of California, Gamochaeta coarctata Gamochaeta coarctata is an annual herb up to tall. Leaves are up to long. The plant forms many small flower heads in elongated arrays.
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One plant can produce sometimes as many as 150 small flower heads in a branching array. Each head contains 2-8 yellow disc flowers and sometimes a single yellow ray flower.Flora of North America, Flaveria linearis Lagasca, 1816. Narrowleaf yellowtops Powell, Albert Michael. 1979.
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It is an annual herb sometimes as much as 200 cm (80 inches or almost 7 feet) tall. The plant usually produces numerous flower heads in open, branching arrays. Each head has 17-26 ray flowers, surrounding a large number of tiny disc flowers.
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Lessingia ramulosa (Sonoma lessingia) is a plant species endemic to California. Lessingia ramulosa is an herb up to 50 cm tall. It has persistent basal leaves plus leaves on the stems. Flower heads are borne singly at the ends of branches, with lavender flowers.
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The simple, axillary inflorescences are appear in pairs of globular flower-heads containing 30 to 40 bright yellow flowers. The seed pods that form later are dark grey to black when mature and have a length of around and contain one or two seeds.
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The inflorescence is made up of 1-5 flower heads per stem, in a loose array. Each head contains 75–125 blue or lavender ray florets surrounding numerous yellow disc florets.Flora of North America, Erigeron uintahensis Cronquist, 1943. Uinta fleabane Cronquist, Arthur John 1943.
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It has narrowly oblanceolate leaves up to long. One plant can produce several groups of small flower heads, each group at the end of a long, thin stalk. Each head is long, with several white ray florets surrounding several yellow disc florets.Brandegee, Townshend Stith 1899.
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The inflorescence generally contains only 1-3 flower heads per stem. Each head contains 11–15 white ray florets surrounding many yellow disc florets.Flora of North America, Erigeron salmonensis Brunsfeld & G. L. Nesom, 1989. Salmon River fleabane Brunsfeld, Steven J. & Nesom, Guy L. 1989.
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Ceiba 19(1): 1–118. Erigeron jamaicensis is a perennial herb sprouting from a rootstock. Stems are long and slender, up to 30 cm (12 inches) tall. Each stem has one or a few flower heads, each with white ray florets and yellow disc florets.
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The plant sometimes produces as many as 20 flower heads per stem, each head containing golden yellow disc florets surrounded by as many as 70 white ray florets.Flora of North America, Erigeron geiseri Shinners, Wrightia. 1: 183. 1947. Geiser’s fleabane Shinners, Lloyd Herbert 1947.
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Leaves are moderately hairy, some produced close to the ground plus others higher on the stem. The plant produces flower heads on long, thin stalks. Each head contains 38-55 white or pink ray florets surrounding numerous yellow disc florets.Nesom, G.L. and J.F. Pruski. 2011.
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The pointed leaves are up to 2 centimeters long and alternately arranged. The inflorescence bears spherical flower heads no more than a centimeter in diameter. The head generally has no phyllaries, or has small ones that fall away early. It contains several woolly white flowers.
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Grevillea shiressii grows as a woody shrub, reaching high. It has shiny lanceolate (spear-shaped) to elliptic leaves which are long and across, with undulate (wavy) margins. The inflorescences (flower heads) appear from July to December, and are composed of two to nine individual flowers.
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In Capital Nat. México. CONABIO, Mexico D.F..Biota of North America Program 2014 county distribution map Hieracium carneum is an herb up to tall. Leaves are lanceolate to linear, up to long. Flower heads contain white to pinkish ray flowers but no disc flowers.
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Deinandra mohavensis is an annual herb growing 10-100 centimeters (4-40 inches) tall. The stems are hairy and glandular. The leaves are bristly and glandular and smooth-edged or serrated on the edges. The flower heads are borne in clusters or somewhat open arrangements.
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California goldenrod The inflorescence is a narrow, often one-sided series or cluster of many flower heads. Each flower head contains many yellow disc florets and surrounded by up to 11 narrow yellow ray florets which measure up to half a centimeter (0.2 inches) long.
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The inflorescence bears several large flower heads each up to wide. They are lined with spiny, woolly to cobwebby phyllaries and bear many narrow glandular purple flowers each about long. The fruit is a cylindrical achene long topped with a white pappus in length.
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Leaves and stems are covered with stiff hairs. One plant can produce 1-7 flower heads, each with 10–15 yellow ray florets surrounding 40 or more yellow disc florets. The species grows in sunny locations in open forests or along the edges of forests.
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Tagetes hartwegii is a hairless perennial herb up to 90 cm (3 feet) tall. Stem is woody at the base. Leaves are bipinnate, up to 8 cm (3.2 inches) long. Flower heads are yellow-orange, each containing 8 ray florets and 35-40 disc florets.
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AAU Rep. 34: 1–443 Tagetes zypaquirensis is an annual herb up to 100 cm (40 inches) tall. Leaves are pinnately compound with toothed leaflets. The plant produces numerous flower heads in flat-topped arrays, yellow, each head containing ray florets surrounding disc florets.
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High-plains goldenrodBiota of north America Program 2014 county distribution map Solidago altiplanities is an herb up to 1 m (39 inches) tall, spreading by underground rhizomes. One plant can produce as many as 350 small yellow flower heads in a broad, conical array.
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DOI=10.1111%2Fj.1365-294X.2007.03574.x. Helianthus deserticola is an annual herb up to tall with abundant resin dots on the foliage. Leaves are up to long. Flower heads contain approximately 7-13 ray flowers and more than 25 disc flowers.Heiser, Charles Bixler.
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Brickellia microphylla is a shrub in size. It produces many small, pale yellow flower heads pale yellow, often purple- tinged. They are often clumped together at the ends of branches.Flora of North America Brickellia microphylla (Nuttall) A. Gray The bloom period is July to October.
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Hymenopappus flavomarginatus is a biennial herb up to tall. It has very narrow divided leaves, resembling branching threads. Each plant produces numerous flower heads in a flat-topped cluster, each head with 40-50 yellow disc flowers but no ray flowers.Johnston, Ivan Murray. 1923.
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Iva annua is an annual herb up to 150 cm (5 feet) tall. The plant produces many small flower heads in a narrow, elongated, spike-like array, each head with 11–17 disc florets but no ray florets.Flora of North America, Iva annua Linnaeus, 1753.
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One plant can produce as many as 50 flower heads in a branching array. Each head has 8-11 yellow ray flowers and 25-80 tiny yellow disc flowers.Fklora of North America, Hymenoxys vaseyi (A. Gray) Cockerell, 1904. Vasey’s rubberweed Cockerell, Theodore Dru Alison. 1904.
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It is a perennial herb up to tall. One plant can produce sometimes as many as 50 flower heads in a branching array. Each head has 5–8 yellow ray flowers and 30–100 tiny yellow disc flowers.Flora of North America, Hymenoxys quinquesquamata Rydberg 1915.
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The spherical flower heads contain six to twelve bright golden flower with dark brown bracteoles. After flowering dark brown to black linear seed pods form with a length of around and a width of . The oblong to elliptic shaped seeds within have a length of .
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The flower stems also bear leaves spaced alternately along the lower half of the stem. These hug the stem and are ovate to lanceolate. The leaves are heavily densely beset with both glandular and non-glandular hairs. The flower heads are 4–6 cm.
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Cryptic flower heads which are hidden also reduce 'nectar-robbing' which some bird species engage in. Other aspects of this pollination syndrome are the scent, the relatively copious amounts of nectar produced, bowl-shaped flower heads on short peduncles, the high sucrose and low protein content of the nectar and the anthesis (flower-opening) occurring during the night. Most flowers open in the evening from 18:00 to 21:00, which is also the period of peak rodent activity. Nectar secretion also appears to be stimulated by cold nights, and perhaps no rainfall, with no nectar being produced during the day and on warm nights.
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The leaf surfaces are glabrate to hairy and are usually eglandular, though they may sometimes be stipitate-glandular. The capitula, or flower heads, are radiate and typically appear in corymbiform arrays, but in rare cases they may be borne singly. The involucres, the bracts at the base of the flower heads, are cylindro-campanulate, meaning bell-shaped, to broadly campanulate and measure from 4 to 14 and exceptionally to 16 mm long by 4 to more than 25 mm wide. The phyllaries, that is the individual bracts that make up the involucres, number from 20 up to 140 in 3 to 7 series and are single nerved.
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The alternately set leaves lack a stalk, have margins rolled downward and inward. The upper surface is sparsely to densely set with ½–2 mm (0.02-0.08 in) long stiff white hairs, while the lower surface is whitish felty hairy except on the midvein. The flower heads can be found on their own at the end of the branches, and are enveloped in an involucre, whose bracts are merged at their base only, with short, soft, silky white hairs and long, stiff white hairs with striping along their lengths. These involucres become woody with age, and the entire flower heads detach from the mother plant with the fruits (or cypselas) inside them.
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Although a 1998 source stated that the flowers are pollinated by birds, other sources claim it is pollinated by rodents. In 1977 the botanists Delbert Wiens and John Patrick Rourke first proposed this pollination method in certain Protea species. In a 1980 magazine article Rourke explained his theory that the peculiarly hidden flower heads had evolved this trait in response to using rodents as pollination vectors, thus constituting a special class of pollination syndrome. Because the rodents are primarily nocturnal creatures that find their food using their sense of smell rather than their sense of sight, the flower heads are not required to be showy.
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Most are shrubs but one species (E. parishii) can reach tree stature. They are distributed in western Canada (Saskatchewan, Alberta, British Columbia) western United States (from the western Great Plains to the Pacific) and northern Mexico. Bright yellow flower heads adorn the plants in late summer.
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Melaleuca croxfordiae is a plant in the myrtle family, Myrtaceae and is endemic to the far south-west of corner Western Australia. It is a paperbark, usually growing in winter-wet places, with long, narrow leaves and a few small creamy coloured flower heads in early summer .
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The branches are glabrous. The leaves are glaucous, distinctly veined, mucronate, end acutely and narrow towards the base. They are usually lanceolate in shape, and in length. The flower heads are sessile on the stems, long and in diameter, and have the shape of a bowl.
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They are often one-sided, with bracts much shorter on the lower than on the upper side. The flower-heads are panicle-like in shape. The flowers are in spikelets. Each spikelet is two- flowered, the upper flower being bisexual and the lower flower sterile or male.
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It is slightly hairy to woolly or cobwebby in texture. The thick leaves have lobed blades one or two centimeters long borne on petioles. The inflorescence holds one or more flower heads containing many disc florets and usually several ray florets, though these may be absent.
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The linear or lance-shaped leaves are a few centimeters long. The plant is coated in rough hairs. The inflorescence is a cyme of flower heads with thick, leathery yellow ray florets 2 or 3 millimeters long and notched at the tips. The fruit is an achene.
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Ericameria parishii is a shrub or small tree up to tall. It has lance-shaped leaves up to 2 inches (5 cm) long. One plant can produce many small flower heads, each with up to 12 golden yellow disc florets but no ray florets.Greene, Edward Lee 1882.
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Leaves are oblanceolate to narrowly spatulate, up to 4 cm (1.6 inches) long. One plant can form many small, yellow flower heads, each with as many as 16 disc florets but no ray florets.Flora of North America, Ericameria compacta (H. M. Hall) G. L. Nesom, Phytologia.
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They are oblong and lobed. On the upper plant the leaves are small, linear in shape, and smooth edged without lobes. Flower heads occur at intervals on the branches and contain 5 to 9 ray florets. The fruit is an achene with a pappus of white bristles.
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The inflorescence is a spike of several flower heads. The heads contain several flowers which are usually purple, but sometimes white. The fruit is an achene tipped with a long pappus of feathery bristles. The plant reproduces sexually by seed and vegetatively by sprouting from its rhizome.
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The inflorescence is a spike up to 15 centimeters long full of clusters of small flower heads. Each head is lined with rough purplish green, glandular phyllaries and generally contains pale pistillate and disc florets. The fruit is a tiny hairless achene.Flora of North America Vol.
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The flower heads appear at the ends of the stem branches in a loose inflorescence. Each head has layers of sticky, hairy phyllaries. The ray florets are each divided into long lobes and are white in color. The disc florets are white with large purple anthers.
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The stems are densely hairy. The inflorescence holds one to five flower heads each with several hairy, glandular phyllaries. The head has up to 20 white, pink-tinged, or pink ray florets 0.6 to 0.8 centimeters long, and many yellow disc florets at the center.Erigeron maguirei.
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Leaves are oblanceolate to linear, rarely more than 10 cm (4 inches) long. One plant can produce several flower heads. The heads are unusual in the genus in having as many as 40 ray florets in addition to the disc florets.Flora of North America, Encelia scaposa (A.
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Helianthus eggertii may grow to over tall, with erect, hairless stems. The leaves are borne on the stem, mostly in opposite pairs. These leaves are lanceolate to ovate, long by wide, narrowing towards the base. Each stem carries 1–5 flower heads, each on a peduncle long.
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Flower heads are yellow, with both ray florets and disc florets. It grows in alpine meadows and rocky slopes at high altitudes in mountainous areas.Greene, Edward Lee 1899. Pittonia 4(20D): 36–37 The species is named for Swedish-American botanist Per Axel Rydberg, 1860–1931.
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Artemisia serrata is a perennial occasionally reaching a height of 300 cm (10 feet). It has up to 5 stems and bicolor leaves (white and green). It has many small yellow flower heads. The species tends to grow in grasslands and barren areas on high plateaus.
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The flower-heads are a short cylindrical shape with a length of and densely packed with yellow flowers. The seed pods that form after flowering have a length of with a distinctive groove along each edge. The seeds insode are long and have an obloid shape.
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They have five nerves and a prominent midrib. It blooms from September to October and produces yellow flowers. It has rudimentary inflorescences rudimentary with single-headed racemes that have an axes of less than in length. The spherical flower-heads contain 11 to 15 golden flowers.
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The host plants for the larva are hawksbeards (Crepis virens), cat's ear (Hypochaeris radicata) and sow-thistle (Sonchus olearius, Sonchus aspera, Sonchus arvensis).George C. Steyskal [Keys to The Insects of The European Part of The USSR] Larvae invade the flower heads, causing galls to form.
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Flaveria pringlei is an perennial shrub or small tree up to tall. Leaves are long and narrow, up to long. One plant can produce many small flower heads in a densely packed array. Each head contains 7-9 yellow disc flowers but no visible ray flowers.
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Felicia fruticosa is a strongly branching shrub of up to high that is assigned to the daisy family with flower heads consisting of about twenty purple to white ray florets encircling many yellow disc florets, and small flat, entire and hairless leathery leaves. Two subspecies are recognized.
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Petasites albus is a perennial rhizomatous herb, with large suborbicular leaves covered with lax cottony hairs. The flower heads are compact racemes of composite floweres or capitula with white ligules. They are dioecious, the male plants often more common than the females, as in the British range.
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Sida 21(2): 1175–1185.Biota of North America Program 2014 county distribution mapCalflora taxon report, University of California, Gamochaeta stachydifolia Reveal & Beatley Gamochaeta stachydifolia is an annual herb up to tall. Leaves are up to long. The plant forms many small flower heads in elongated arrays.
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Biota of North America Program 2014 county distribution map Flyriella parryi grows on rocky slopes, along streambanks, and in canyons. Its stem has many long, glandular hairs. Its leaves are egg- shaped, and up to long. One plant will produce numerous flower heads in a branching array.
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The leaves are coated in glandular trichomes that hold drops of sticky exudate, which is likely protective against solar radiation. Its flower heads contain yellow flowers. This plant occurs in high mountain páramo habitat, taking hold in small accumulations of organic matter in rocky cracks and crevices.
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Hazardia rosarica is a shrub up to 90 cm (3 feet) tall with lemon-scented foliage. It has several stems arising from a woody underground caudex. The plant produces numerous flower heads each head with 12-30 yellow disc flowers but no ray flowers.Moran, Reid Venable. 1969.
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It is usually somewhat woolly in texture. The inflorescences at the ends of stem branches bear small hemispheric flower heads. The golden ray florets are up to a centimeter long and surround a center of many disc florets. The fruit is an achene about 2 millimeters long.
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L. filiformis is univoltine in Turkey. Females lay eggs on the flowerheads, and larvae undergo development inside the flower heads. Adults emerge in spring when the temperature reaches about 20 degrees C. It is most common at an elevation of 1,000 to 1,400 meters in Turkey.
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The rough, leathery leaves are oval in shape and up to 2 centimeters (8/10 inch) long. They are often sticky with resin glands. The inflorescences at the end of stem branches contain solitary flower heads, each about 1.5 centimeters long and lined with green, pointed phyllaries.
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Its leaves are up to about long and almost form a rosette at the base, while the large flower heads are on long, approximately leafless pedicles. The involucral bracts are blunt, hardly can a narrowed tip be observed. Felicia tenella subsp. pusilla may grow to about tall.
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The inflorescence produces flower heads on long peduncles. The head has 5-12 yellow ray florets up to a centimeter (0.4 inches) long with lobed tips. The 16–65 yellow disc florets at the center have black anthers. The fruit is an achene a few millimeters long.
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Leaves are usually 3-lobed, up to 3 cm (1.2 inches) long. The inflorescence is made up of only one flower heads per stem. Each head contains 20–40 white, lavender, or pink ray florets surrounding numerous yellow disc florets.Flora of North America, Erigeron trifidus Hooker, 1834.
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It is a small perennial herb rarely more than 8 cm (3.2 inches) tall. The inflorescence generally contains only one flower heads per stem. Each head contains 21–33 ray florets each ray white with a lilac stripe down the middle. These surround many yellow disc florets.
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Stems are sometimes erect (standing straight up), sometimes reclining on the ground or leaning on other vegetation. The plant produces flower heads on long, thin stalks. Each head contains 40-115 white, pink, or red ray florets surrounding numerous yellow disc florets.Nesom, G.L. and J.F. Pruski. 2011.
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Stems are sometimes erect (standing straight up), moderately hairy. Leaves are moderately hairy, some produced close to the ground plus others higher on the stem. The plant produces flower heads on long, thin stalks. Each head contains 80-180 white ray florets surrounding numerous yellow disc florets.
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The compound flower heads. known as inflorescences, appear from May or June to September, and are borne terminally. The flowers are arranged in racemes and are red or pink. Flowers are followed by round 2.5–3 cm diameter woody fruit, each of which contains two seeds.
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This plant is a perennial herb growing from a woody taproot and branching caudex and growing up to 40 centimeters tall. The leaves are lance-shaped to oblong and up to 10 centimeters long by 1.5 wide. The flower heads contain many disc florets. One variety, var.
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Universidad Nacional Autónoma de México, México D.F..Nelson, C. H. 2008. Catálogo de las Plantas Vasculares de Honduras 1–1576. Secretaria de Recursos Naturales y Ambiente, Tegucigalpa Their flower heads are usually composed of only disc florets, though some are long and look like ray florets.
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Flower heads occur on the spreading branches. Each has up to 13 or 14 ray florets, each with an elongated tube and a whitish ligule up to 1.5 centimeters long. The fruit is an achene tipped with a spreading cluster of long, tan, plumelike pappus bristles.
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Armeria pungens grows in small shrubs, reaching heights of about . The stems are lignified at the base, robust, highly branched. Leaves are glabrous, linear to lanceolate, pointed, about long and about wide. Flower heads are pale pink, gathered in globose inflorescences at the top of long pedicels.
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The oval leaves are 1 or 2 centimeters (0.4-0.8 inches) long and mostly smooth-edged. The flower heads are produced 1-4 per stem, each lined with hairy, glandular phyllaries. The heads contain 45–58 white ray florets each about 3 millimeters (0.12 inches) long.
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This fungus is a pathogen of meadowsweet that causes powdery mildew on the plant's leaves and flower heads and distorts their growth. It can be evident throughout the growth cycle from spring to autumn. It produces chains of oval conidia as well as groups of cleistothecia.
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1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272 Conoclinium betonicifolium is a perennial with a stem that runs close to the ground and sometimes roots at the nodes. One plant generally produces several flower heads, each with blue or purple disc florets but no ray florets.
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They are composed of 12 to 20 pairs of pinnae along rachis that are in length. It flowers between July and August producing golden coloured flowers. The simple inflorescences are situated in axillary racemes. The spherical flower-heads contain 15 to 30 loosely packed golden flower.
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The rough-haired spatula-shaped leaves are generally under a centimeter long but may be slightly longer. The flower heads lie directly on top of the clump rather than erect on stalks. Each head contains up to 21 ray florets roughly half a centimeter long.Townsendia aprica.
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Conoclinium mayfieldii is a reclining herb up to 70 cm (28 inches) tall. Leaves are opposite, egg-shaped. The plant usually produces several flower heads, each with blue or lavender disc florets but no ray florets. The species is named for American botanist Mark H. Mayfield.
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One plant can produce as many as 20 flower heads, each with 30–45 yellow ray flowers but no disc flowers.Flora of North America, Hieracium venosum Linnaeus, 1753. It is a perennial that blooms from May to September, and prefers shady conditions with dry, sandy soil.
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Cichorium pumilum is a Mediterranean species of plant in the dandelion tribe within the sunflower family . Like the two other species of Cichorium, its leaves are edible by humans. The plant produces bluish-violet flower heads and fleshy taproots.Altervista Flora Italiana, Endivia selvatica, Cichorium pumilum Jacq.
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This species is a perennial herb which grows as a branching vine. The leaves are oppositely arranged at swollen nodes on the stem. They have triangular or heart-shaped, sometimes toothed blades up to 15 centimeters long by 11 wide. The flower heads are clustered in panicles.
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This shrub grows 80 to 130 centimeters tall. It is hairy and glandular. The leaves are lance-shaped and toothed or smooth-edged and measure up to 3.7 centimeters in length. The inflorescence contains up to 11 flower heads containing white ray florets and maroon disc florets.
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The Encelia frutescens flower heads usually, but not always, lack ray florets and are composed of only a disc packed with disc florets. The leaves are rough and hairy. The flat, light fruits are wind dispersed. This is an occasional food plant for the desert tortoise.
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It is not a cedar, fir, or pine, but a member of the aster family, Asteraceae. It is a leafy evergreen shrub with glandular, resinous foliage. It flowers in yellow flower heads which have only disc florets. The fruits are woody, bristly seeds with a pappus.
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The evergreen phyllodes are often recurved with obscure nerves. It blooms between August and November producing yellow flowers. The rudimentary inflorescences have spherical flower-heads containing 30 golden flowers. The linear shaped seed pods have dehisced valves and are generally rounded over and constricted between the seeds.
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It is gray-green in color and coated with woolly fibers. The leaves are linear or lance-shaped, the lower ones divided into lobes. The inflorescence is generally a cluster of flower heads lined with woolly phyllaries and containing yellow disc florets. There are no ray florets.
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The flower heads, which are in the axils of the higher leaves on the stems, each contain between four and seven individual flowers. The bracts that encircle the flower heads are unequal in size, clasp the base of the flowers tidly, are powdery hairy but felty near the base, and together form a two-lipped involucre. The two or three bracts below the attachment of the flowers are broadly ellipse-shaped with a pointy tip, and are larger, 3½–4 cm (1.4–1.6 in) long and 12–16 mm (0.48–0.64 in) wide. The bracts above the attachment of the flower heads are smaller, narrowly lance-shaped with a pointy tip, 1½–2½ cm (0.6–1.0 in) long and 3–5 mm (0.12–0.20 in) wide. The bract subtending the individual flower is linear with to awl-shaped, about 10 mm (0.40 in) long and 1 mm (0.04 in) wide, and densely covered in silky hairs. The 4-merous perianth is 4–4½ cm (1.6–1.8 in) long.
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Leaves occurring farther up the stem are smaller and most lack petioles. The inflorescence contains up to 6 or 8 flower heads, each lined with green-tipped, yellow-edged phyllaries. The head contains many golden yellow disc florets and several orange ray florets each about a centimeter long.
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The spherical flower-heads have a diameter of and contain 14 to 20 pale yellow flowers. Following flowering straight to curved seed pods form that are a little and usually irregularly more deeply constricted between seeds. The leathery pod are sparsely haired and are around in length and wide.
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The inflorescence holds one to three daisylike flower heads lined with phyllaries coated in glandular hairs. The flower head has a center of yellow disc florets and a fringe of yellow ray florets. The fruit is an achene with a white to cream-colored pappus.Flora of North America Vol.
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The ribbed, erect stem branches toward the top. There are alternately arranged leaves which are lance-shaped and toothed on the edges. The basal leaves may be up to 90 centimeters long by 9 wide. The inflorescence contains white to blue flower heads with spiny, blue-tinged bracts.
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A closely related genus is Pycnosorus, also often called billy buttons. The genera can be distinguished by the attachment of individual flower heads to the compound heads; in Pycnosorus they are directly attached, and in Craspedia they arise on small stalks. The two genera may actually be monophyletic.
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The flowers are narrow and tubular. The plant is monoecious with both sexes in each flower. Blooming plants have a strong yeasty smell. Even in cultivation, the plants do not flower every year, and on most years only two or three flower heads are produced by a plant.
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The inflorescence may contain many flower heads with white or blue-tinged ray florets that may dry pinkish. The California plant is not colonial and the caudex branches little or not at all. The inflorescence contains no more than 3 heads. The florets are white or pink-tinged.
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Penang: Areca Books. has been traced to the Arabic for 'goldsmith'. The small, yellowish flower grows in dense drooping rat-tail flower heads, almost like catkins. The curved hanging pods, with a bulge opposite each seed, split open into two twisted halves to reveal the hard, scarlet seeds.
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Leaves are up to 9 centimeters long. The tops of the stem branches bear flower heads one or two centimeters wide, which are bell-shaped with rounded bases. The head is a cup of green clawlike, curling or erect phyllaries. The overall flower is a bright golden yellow.
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Melaleuca filifolia, commonly called wiry honey-myrtle, is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a woody, twiggy shrub with needle-shaped leaves, greenish flower buds, pink "pom-pom" flower heads and spherical clusters of fruits.
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These are green on the upper surface, and white tomentose below. The flower heads appear in dense clusters in summer and autumn The species occurs in boggy sites and subalpine heathland in New South Wales and Victoria. It was first formally described in 2010 in the journal Muelleria.
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The glandular leaves are triangular with serrated edges. The inflorescence is a dense cluster of fuzzy flower heads containing long, protruding disc florets in shades of white, pink, and blue. There are no ray florets. The fruit is an achene a few millimeters long with a rough, bristly pappus.
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It differs from goat's-beard, Tragopogon pratensis, in that it has short, pale green bracts, whereas in Goats Beard they are long and pointed. It grows 7 to 50 cm. The leaves are unbranched, elliptical-lanceolate. The flower heads are 2.5 cm wide, and deep yellow in colour.
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The axillary inflorescences can appear singly or in groups of ten. The large flower-heads contain between 40 and 60 pale yellow flowers. The thick, linear, dark brown seed pods that form after flowering have a length of and a width of and can be straight or curved.
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3: 35. 1834Pan-arctic Flora, 862216 Artemisia senjavinensis Besser Artemisia senjavinensis is a shrub up to 90 cm (3 feet) tall, with many stems densely clumped together. Leaves are gray-green, woolly, mostly in rosettes close to the ground. There are many small yellow or tan flower heads.
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Museo de Historia Natural Noel Kempff Mercado, Santa Cruz. Chromolaena ivifolia is a perennial herb or subshrub up to 150 cm (5 feet) tall. Flower heads are produced in groups at the ends of branches. The heads contain red, purple, or blue disc florets but no ray florets.
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Flower heads are produced on stalks well above the main leaves, and have yellow centres with pink or occasionally white bracts. Flowering usually occurs in spring or summer in years with good cool season rain.Corrick, M.G., Alexander, B. 2002. “Wildflowers of Southern Western Australia” Five Mile Press, Noble Park.
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Phyllotheca 7.University of Waterloo (Canada), Astereae Lab, Bradburia pilosa Bradburia pilosa is an annual up to 80 cm (32 inches) tall with yellow flower heads. Disc florets are fertile, unlike in the closely related B. hirtella.Flora of North America, Bradburia hirtella Torrey & A. Gray, Fl. N. Amer.
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1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272Madrean Archipelago Biodiversity Assessment, Brickellia macromera B.L.Rob. includes distribution map and photo of herbarium specimen Brickellia macromera is a branching shrub with white bark on the limbs and trunk. It produces several flower heads with disc florets but no ray florets.
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1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272 Chromolaena misella is a shrub up to 80 cm (32 inches) tall. Leaves are opposite, 3-nerved, up to 12 cm long. Flower heads are produced in groups of 2-5 heads, with blue disc florets but no ray florets.
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One plant can usually produce only 1-3 flower heads. The head is spherical or hemispherical, with sometimes as many as 1000 yellow disc florets, plus 13-30 yellow ray florets. The species grows in bogs, swamps, and other wet places.Flora of North America, Helenium drummondii H. Rock, 1957.
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Both the leaves and the stem are covered with white woolly hairs. Each stalk can produce as many as 80 yellow flower heads and a loose array. The species grows in sandy and grassy locations.Flora of North America, Highlands goldenaster, Chrysopsis Lynn Haven goldenaster Small Small, John Kunkel 1933.
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Both the leaves and the stem are either hairless or with finely scattered hairs. Each stalk can produce as many as 70 yellow flower heads and a loose array. The species grows in sandy and grassy locations.Flora of North America, Scrubland goldenaster, Chrysopsis subulata Small Small, John Kunkel 1933.
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Leaves are crowded along the stem, each up to long. Flower heads are in clusters, with white or purple disc flowers but no ray flowers. The achene has several long, feathery bristles that give a white appearance and assure effective seed dispersal.Flora of North America, Facelis Cassini, 1819.
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Grindelia subalpina is a biennial, or perennial herb up to 60 cm (2 feet) tall. The plant usually produces numerous flower heads in open branching arrays. Each head has 18-27 ray flowers, surrounding a large number of tiny disc flowers.Flora of North America, Grindelia scabra Greene, 1898.
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Leaves are long and narrow, up to long, mostly clustered along the base and often folded along the middle. The plant forms many small flower heads in elongated arrays. Each head contains 2–4 purple disc flowers but no ray flowers.Flora of North America, Gamochaeta calviceps (Fernald) Cabrera, 1961.
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Larinus sibiricus is a species of true weevil found in Eastern Europe and the Middle East. The weevil feeds on Xeranthemum annuum (Asteraceae). Females lay eggs on the flowerheads, and larvae undergo development inside the flower heads. The species' larvae apparently are parasatized by Bracon urinator (Hymenoptera: Braconidae).
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The flower heads sit individually at the tip of stalks, have an involucre of three whorls of bracts, and about thirty light blue ray florets surrounding many yellow disc florets. Four subspecies are recognised. The species naturally occurs in the Northern Cape and Western Cape provinces of South Africa.
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The leaves are lance-shaped with toothed or lobed blades, the upper leaves with fewer, narrower lobes. The inflorescence contains several flower heads in one or more open clusters. The head is lined with hairless red-tinged green phyllaries. It contains yellow ray florets each roughly a centimeter long.
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The simple inflorescences occur singly in the axil of the phyllodes. The globose flower heads with a diameter of and contain 35 to 60 bright yellow flowers. Following flowering smooth papery seed pods form. The pods are straight and slightly constricted between seeds with a length of and wide.
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The leaves are a few centimeters long and divided into many lobes. The inflorescence bears one or more flower heads on long peduncles. The flower head is lined with woolly phyllaries which have recurved tips. The head contains many white or pink- tinted flowers which open at night.
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Chaenactis stevioides is an annual herb growing one or more erect stems up to about tall. The stems are hairy with cobwebby fibers which thin with age. The leaves reach in length and are divided into many subdivided lobes. The inflorescence bears several flower heads on a tall peduncle.
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The capitula, or flower heads, are arranged in relatively flat-topped corymbiform arrays. The capitula number anywhere from 4 to 50 and up to 100 or more in exceptional cases. The peduncles, i.e. the flower stalks, are up to in length and are densely covered with non-glandular hairs.
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The phyllodes are in length and wide with a prominent midvein. It blooms between July and September producing inflorescences in groups of 5 to 25 in an axillay raceme with spherical flower-heads that have a diameter of containing 8 to 15 lemon yellow to pale yellow coloured flowers.
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University of Texas, Austin. Coreopsis palmata is a perennial herb reaching about 80 centimeters (32 inches) in height. The leaf blades are often lobed, but are not divided into leaflets as in some related species. The flower heads contain ray florets up to 2.5 centimeters long, or sometimes longer.
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Leaves are most on the stem rather than crowded close to the ground. Each stem can produce 1-5 flower heads, each with as many as 30 purple or lavender ray florets surrounding numerous yellow disc florets.Flora of North America, Erigeron klamathensis (G. L. Nesom) G. L. Nesom, 2004.
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Madia anomala is an annual herb growing 20 to 50 centimeters tall with a bristly, glandular, branching stem. The hairy, glandular leaves are several centimeters long. The inflorescence is a cluster of flower heads. Each head is a spherical involucre of hairy phyllaries covered in knobby resin glands.
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The plant produces 1-5 flower heads per stem, each head with up to 110 white ray florets surrounding numerous yellow disc florets. The species grows in desert regions, often alongside creosotebush.Flora of North America, Erigeron lobatus A. Nelson, 1934. Lobed fleabane Shreve, F. & I. L. Wiggins. 1964.
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The flower heads are lined with several phyllaries. There are usually 6 to 12 ray florets, sometimes up to 15, but sometimes none. These are variable in color, being purplish, yellowish, or whitish. There are many disc florets at the center, also variable in color, especially across the varieties.
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The inflorescence is made up of 1–25 flower heads in flat-topped arrays. Each head contains 25–40 white ray florets surrounding numerous yellow disc florets.Flora of North America, Erigeron vernus (Linnaeus) Torrey & A. Gray, 1841. Early white-top fleabane Godfrey, R. K. & J. W. Wooten. 1981.
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Gray) A. Gray Antennaria stenophylla is a relatively small plant up to 15 cm (6 inches) tall. Male and female flower heads are on separate plants, with several heads clumped together on each stalk. The species usually grows on hillsides in sagebrush steppes, frequently dominated by sagebrush (Artemisia spp.).
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Journal of the Arnold Arboretum 45(4): 421 Ambrosia cordifolia is a shrub up to 50 cm (20 inches) tall. Leaves are triangular or heart-shaped. Flower heads are small and inconspicuous, as the plant is wind-pollinated. The heads develop into spiny burs as the seeds ripen.
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Leaves are once-pinnate, the lobes very narrow and thread-like with many glands along their lengths. The plant produces flower heads one per flowering stalk, each head with 5 yellow Ray florets surrounding 30-40 yellow Disc florets. The plant grows on rocky limestone slopes.Billie Lee Turner. 1988.
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The leaves are threadlike to linear and measure up to 14 centimeters in length. The flower heads contain five ligulate florets in shades of lavender or pink to white. This plant grows in juniper shrublands and grasslands on alluvial sandstone soils. It is found at only three sites.
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The flower heads are arranged in a dense, spikelike array. The head is cylindrical and about a centimeter long. It is held at a right angle to the stem and is attached to it, without a stalk. It contains three or four purple disc florets and no ray florets.
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Leaves are pinnately compound up to 6 cm (2.4 inches) long. The plant will produce several flower heads in a flat-topped array, orange, each head containing ray florets surrounding numerous disc florets.Rydberg, Per Axel 1913. in Britton, Nathaniel Lord, North American Flora 34: 153Lagasca y Segura, Mariano 1816.
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The bright yellow flowerheads appear from August to November. The simple inflorescences are found in pairs in the axils with cylindrical flower-heads that have a length of and are packed with golden flowers. Flowering is followed by curled or twisted brown seed pods which are and wide.
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The foliage is rough, mint-green, and sometimes sticky with glandular secretions. The stems are erect and bear daisylike flower heads with deep yellow ray florets and yellow to reddish or orange disc florets. The fruit is a reddish achene with a small pappus.Flora of North America Vol.
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In young M. pruriens plants, both sides of the leaves have hairs. The stems of the leaflets are two to three millimeters long (approximately one tenth of an inch). Additional adjacent leaves are present and are about long. The flower heads take the form of axially arrayed panicles.
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The hairy phyllodes are in length and wide and have many longitudinal indistinct nerves. When it blooms it produces simple inflorescences with spherical flower-heads containing 17 to 25 light golden coloured flowers. Following flowering flat and narrowly oblong red-brown seed pods form that are in length.
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It typically grows in deciduous or mixed deciduous woods, as well as on slopes or alluvial plains. Basic to neutral soils are usually preferred. Its flower heads emerge in the late summer to early fall and show white to lavender rays with pale yellow centres sometimes tinged with purple.
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The spreading and dense shrub typically grows to a height of . It blooms from July to August and produces yellow- orange flowers. The linear phyllodes are in length with a hooked tip. The single flower heads have a diameter of containing 30 to 42 golden to orange flowers.
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The lowermost may reach a length of 20 centimeters and are deeply cut into lobes. The inflorescence contains a few flower heads. Each is 1.5 to 2 centimeters long and oval in general shape. The phyllaries are green or straw-colored and tipped in tough, sharp yellow spines.
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The flowers are borne in paniculate flower heads (capitula). The white ray florets are furnished with a ligule, while the disc florets are yellow. The hollow receptacle is swollen and lacks scales. This property distinguishes German chamomile from corn chamomile (Anthemis arvensis), which has a receptacle with scales.
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Young leaves are covered in a very minute, loose pubescence, but become glabrous as they get older. The flowers are bourne on a specialised inflorescence, a flower head or pseudanthium. The flower head is sessile, in length, and around in diameter. The flower heads are dropping, opening downwards.
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It produces flower heads one per stem, each head with florets 5–10 yellow or cream-colored ray florets, sometimes with red veins. These surround 20–30 yellow disc florets.Flora of North America, Eriophyllum wallacei (A. Gray) A. Gray, 1883. Woolly easterbonnets, Wallace’s woolly daisy Image:Eriophyllum wallacei 1.
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The hanging flower heads contain several yellow disc florets and no ray florets. The fruit is a hairy achene up to a long including its pappus. Most of the parts of the plant are very resinous and have a tarlike or hoplike scent. It has a bitter taste.
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Lycaena heteronea males are always patrolling between flower heads of their Eriogonum food plants. Males are also known to perch on these food plants. Females are not territorial, they are more worried with finding proper host plants for the larvae. Males on the other hand are the complete opposite.
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Mimetes pauciflorus, the three-flowered pagoda, is an evergreen, shyly branching, upright shrub of 2–4 (6½–13 ft) high, from the family Proteaceae. It has narrowly to broadly oval leaves of 2½–4 cm (1.0–1.6 in) long and ¾–2 cm (0.3–0.8 in) wide, on the upper parts of the branches, the lower parts leafless with a reddish brown bark. The inflorescences at the top of the shoots are cylinder-shaped, 10–40 cm (4–16 in) long and contain forty to one hundred twenty densely crowded flower heads, at a steep upward angle, hiding a crest of very small, almost vertical leaves. The flower heads each consist of three, rarely four individual flowers.
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The inflorescence produces one or more tiny flower heads which are oblong or shaped like tops on close inspection. Each is a few millimeters wide, enclosed in phyllaries studded with stalked resin glands, and tipped with minute yellowish florets. The fruit is an achene a few millimeters long with no pappus.
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Melaleuca amydra is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is similar to Melaleuca ryeae with its small, compact form, oval leaves and "pom-pom" heads of pink to purple flower heads on the ends of the branches in spring.
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The inflorescence contains several flower heads, each lined with woolly green phyllaries. The head contains many golden yellow disc florets and generally either 8 or 13 narrow yellow ray florets each up to a centimeter long. The fruit is an achene around a centimeter long, including its pappus of bristles.
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Artemisia ludoviciana is a rhizomatous perennial plant growing to heights between . The stems bear linear leaves up to 11 centimeters long. The stems and foliage are covered in woolly gray or white hairs. The top of the stem is occupied by a narrow inflorescence of many nodding (hanging) flower heads.
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Globe chamomile is a straggly, branching annual plant with a strong smell, growing up to tall. The bipinnate or tripinnate leaves have a fleshy midrib which widens at the base. The globular flowers are borne in paniculate flower heads. There are no ray florets and the disc florets are yellow.
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Leaves are spatula-shaped, up to 40 mm (1.6 inches) long. One plant can produce many small white flower heads in a tightly packed clump, each head with as many as 21 disc florets but no ray florets.Flora of North America, Ericameria zionis (L. C. Anderson) G. L. Nesom, Phytologia.
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Pollination occurs through visits to the flower heads by species of rats and mice. Periodic wildfires destroy the adult plants, but the seeds can survive such an event. It is a short-lived re-seeder with a generation lasting 15 to 20 years. The plant grows in a fynbos or renosterveld.
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Old flowers soon fall from the flower heads, revealing a woody dome with 1 to 6 follicles embedded in it. These are a mottled grey colour, smooth, and shortly furry. They are oval-shaped, measuring long by high by wide. Each follicle contains up to two winged seeds, from long.
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Brickellia californica is a thickly branching shrub growing in height. The fuzzy, glandular leaves are roughly triangular in shape with toothed to serrated edges. The leaves are 1 - 6 centimeters long. The inflorescences at the end of stem branches contain many small leaves and bunches of narrow, cylindrical flower heads.
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Ambrosia pumila is a hairy perennial herb not exceeding in height. The leaves are gray-green and fuzzy and divided into several subdivided segments. They are up to 13 centimeters long, not counting the winged petioles. The inflorescence is tipped with staminate (male) flower heads above several larger pistillate (female) heads.
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Erechtites valerianifolius is an annual herb up to 100 cm (40 inches) tall. Leaves have long petioles with narrow wings along the sides, bearing oblong or elliptical blades with many pinnate lobes. One plant can produce many yellow or purple flower heads, each with both disc florets and ray florets.
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The longest near the base of the plant are up to long. The inflorescence holds one or more flower heads each up to long and wide. The head is lined with spiny phyllaries of different shapes. The flowers in the head are white to lavender to pink and up to long.
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As in other ragweeds, the inflorescence has a few staminate (male) flower heads next to several single- flowered pistillate heads. The bloom period is April to June. The fruit is a green burr with long, silky white hairs and several hair-tufted sharp spines. The burr is around a centimeter long.
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Biota of North America Program, 2014 county distribution map Baccharis glomeruliflora is a shrub up to 300 cm (10 feet) tall. It has thick, leathery, evergreen leaves with large teeth, and flower heads clumped together in the axils of the leaves. It grows in swamps, hammocks, riverbanks, and other wet habitats.
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Zacherl insecticide factory (Vienna, Austria) by Hugo von Wiedenfeld. Ceramic covering the facade of the Zacher insecticide factory Johann Zacherl (1814 – 30 June 1888) was an Austrian inventor, industrialist and manufacturer who made a fortune in the late 19th century selling dried flower heads of Chrysanthemum cinerariifolium as an insecticide.
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The Comps of Mexico: A systematic account of the family Asteraceae, vol. 1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272 Brickellia lewisii is a perennial subshrub up to 30 cm (12 inches) tall with many small, nodding (hanging) flower heads. The species is named for US botanist Paul Lewis.
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Gymnarrhena is most related to Cavea, but few morphological features would support this assignment, other than both having two types of flower heads and sharing a tendency towards dioecism. Both also have basal leaf rosettes, stretched leaves, with few spaced teeth on the margin, and both lack spines and latex.
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The inflorescences occur singly and have spherical flower-heads containing 14 to 23 golden flowers. The dark brown to black seed pods that form after flowering are curved or a single coil with a length of up to and a width of and contain elliptic seeds with a length of .
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The aggregate flower heads contain yellow disk florets. It flowers from April till June. Because Warionia is deviant in many respects from any other Asteraceae, different scholars have placed it hesitantly in the Cardueae, Gundelieae, Mutisieae, but now genetic analysis positions it as the sister group to all other Cichorieae.
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One plant can produce numerous flower heads in a loose branching array. Each head contains 10-15 yellow disc flowers but no ray flowers.Powell, Albert Michael. 1979. Annals of the Missouri Botanical Garden 65(2): 609-610 description and commentary in English, distribution map on page 610Rydberg, Per Axel. 1915.
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Stems sometimes grow straight up, sometimes reclining on the ground. Leaves are long and narrow, up to long. One plant can sometimes produce 100 or more flower heads in a loose, branching array, each head with 5-10 yellow disc flowers. Sometimes the head also contains one single ray flower.
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It also produces a flat-topped array of several flower heads at the end of each stem, rather than just one as is common in related species.Steyermark, Julian Alfred. 1934. Annals of the Missouri Botanical Garden 21(3): 463-464 diagnosis in Latin, description and commentary in EnglishNesom, G.L. 1990.
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The inflorescence bears one to four flower heads lined with thick phyllaries. The head contains about 15 yellow disc florets surrounded by about 13 yellow ray florets each about long. The fruit is an achene with a pappus made up of two awns.Flora of North America, Grindelia fraxinipratensis Reveal & Beatley, 1972.
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Leaves are up to long, green on the top but appearing white on the underside because of many woolly hairs. The plant forms many small flower heads in elongated arrays. Each head contains 4–6 yellow disc flowers but no ray flowers.Flora of North America, Gamochaeta ustulata (Nuttall) Holub, 1976.
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The four species of the section Crinitae are sometimes called flat pincushions. They are upright or spreading shrubs. The involucral receptacle is always flat and in diameter with bowl- shaped flower heads. The lobes of the perianth remain erect after flowering and do not curl back as usual in other sections.
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The plant produces flower heads either one at a time or in dense flat-topped arrays of 2-50 heads. Each head contains 12-50 white, purple, or pale violet ray florets surrounding 25-125 yellow disc florets. The involucral bracts are reddish-purple (anthocyanic).Hitchcock, C.L. and A. Cronquist. 1987.
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Apparently, it is present in the soil seed bank for decades, until a suitably intense fire triggers germination. Flower heads may develop at any time during the year. It is assumed that like other Mimetes species, the mace pagoda is pollinated by birds and the seeds are distributed by ants.
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Listados Florísticos de México 4: i–v, 1–246. Hieracium fendleri is an herb up to tall, with leaves mostly in a rosette at the bottom. Leaves are up to long, sometimes with small teeth on the edges. One stalk will produce 2-5 flower heads in a flat-topped array.
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It produces numerous flower heads, each head containing 4–9 yellow ray flowers surrounding 11–21 small yellow disc flowers, the disc flowers having yellow or brown anthers.Flora of North America, Holocarpha obconica (J. C. Clausen & D. D. Keck) D. D. Keck, 1958. Clausen, Jens Christian & Keck, David Daniels. 1935.
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Heliopsis gracilis is a perennial herb up to tall, spreading by means of underground rhizomes. The plant generally produces 1-5 flower heads per stem. Each head contains 6-19 bright yellow ray florets surrounding 40 or more yellowish-brown disc florets. The fruit is an achene about 5 mm long.
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The inflorescence is a wide array of flower heads. A dioecious species, the male and female plants produce different flower types which are similar in appearance. The flowers and foliage are glandular. Female flowers yield fruits which are ribbed achenes, each with a fuzzy body long and a pappus about long.
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Baccharis vanessae is a sticky, glandular shrub producing dense, branching, erect stems approaching 2 meters in maximum height. The leaves are linear and up to long. This dioecious shrub produces male and female flower heads on different individuals. The fruit is an achene with a pappus up to a centimeter long.
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It has only one stem, becoming woody with age. One plant will produce up to 25 flower heads in a flat-topped array. The flowers appear in the late summer through the fall. Each head contains 8-20 white or pale lilac ray florets surrounding 12-26 yellow disc florets.
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The species is dioecious, male and female flowers being borne on separate plants. The erect flower-heads grow in short racemes on stems up to 25 cm long with a few scale-leaves. The florets are pinkish-mauve and appear in DecemberParnell, J. and Curtis, T. 2012. Webb's An Irish Flora.
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The inflorescence bears one or more flower heads lined with spreading or curling, pointed phyllaries. The head has a center of many yellow disc florets and a fringe of many lavender to purple ray florets each long. The fruit is a flat achene about 1 cm long including the pappus.
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Stems and leaves are covered with hairs, some of them stiff. The plant sometimes produces only one flower heads per stem, sometimes 2 or 3. Each head contains as many as 60 blue ray florets surrounding numerous yellow disc florets.Flora of North America, Erigeron goodrichii S. L. Welsh, Great Basin Naturalist.
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Erigeron taipeiensis is a Chinese species of flowering plants in the daisy family. It grows in subalpine meadows in the Taibai Mountains Shaanxi province. Erigeron taipeiensis is a perennial, clumping-forming herb up to 35 cm (14 inches) tall. Its flower heads have lilac ray florets surrounding yellow disc florets.
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Erigeron leucoglossus is an Asian species of flowering plants in the daisy family. It grows in alpine grasslands in Tibet. Erigeron leucoglossus is a perennial, clump-forming herb up to 35 cm (14 inches) tall, forming woody underground rhizomes. Its flower heads have white ray florets surrounding yellow disc florets.
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In a few locations L. lineare occurs on Table Mountain Sandstone, but even there it is mostly underlain by weathered granite. Flowers can be found between July and January with a peak in September and October. Birds pollinate the flowers. The seeds fall from the flower heads after about 2 months.
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The pointed leaves are up to 1.8 centimeters long and alternately arranged. The inflorescence bears oval flower heads no more than half a centimeter in diameter. The head generally has no phyllaries, or has small ones that fall away early. It is a hardened ball of several woolly white flowers.
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Integrated Taxonomic Information System. This perennial herb usually reaches nearly 100 cm (40 inches) in height, sometimes approaching 200 cm (80 inches). The leaves are mostly divided into 3 leaflets which are smooth-edged to lobed and several centimeters long. The flower heads have yellow ray florets long, or longer.
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Leaves are up to 15 cm (8 inches) long, mostly on the lower part of the stem. One plant can produce up to 50 yellow flower heads on the upper branches.Flora of North America, Solidago arenicola B. R. Keener & Kral, 2003. Southern racemose goldenrod Keener, Brian R. & Kral, Robert. 2003.
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Leaves are broadly egg-shaped. One plant usually produces 3-15 flower heads, each containing 8–13 yellow ray florets surrounding 75 or more red disc florets.Flora of North America, Helianthus silphioides Nuttall, 1841. Rosinweed sunflower A 2004 Illinois conservation assessment listed Helianthus silphioides as critically imperiled within the state.
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Florida thoroughwort Eupatorium anomalum is a tall perennial sometimes over 150 cm (5 feet) tall, producing tuberous rhizomes. It has opposite, egg -shaped leaves, and flat-topped arrays of a large number of tiny flower heads. Each head has 5 white disc florets but no ray florets.Nash, George Valentine 1896.
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The leaves are needlelike to thready, 2 to 3 centimeters long and mostly hairless. The inflorescence is a loose cluster of 3 to 5 flower heads. Each head has a nearly cylindrical base of flat, wide phyllaries. It is discoid, containing about five yellow disc florets and no ray florets.
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The spherical flower- heads contain 25 to 30 bright golden flowers. Following flowering glabrous seed pods form with a length of and a width of containing longitudinally arranged seeds with a length of . The shrub is closely related to and resembles Acacia johnsonii and is part off the Acacia johnsonii group.
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Felicia echinata, commonly known as the dune daisy or prickly felicia, is a species of shrub native to South Africa belonging to the daisy family (Compositae or Asteraceae). It grows to high and bears blue-purple flower heads with yellow central discs. In the wild, it flowers April to October.
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The simple inflorescences simple occur singly in the axils and have spherical flower-heads containing 25 to 35 golden coloured flowers. The linear brown seed pods that form after flowering are shallowly constricted between the seeds and a biconvex shape with a length of up to and a width of around .
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The inflorescences are usually clusters of flower heads located at intervals on the stiff branches. Each head has a cylindrical base lined with phyllaries. These are often glandular. The head contains several ray florets, each with an elongated tube and a white or pink-tinged ligule measuring around a centimeter long.
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Tragopogon mirus is an herb up to 150 cm (60 inches) tall. Leaves are slightly tomentose when young, nearly glabrous when fully mature. Leaf apices are straight, not curved or coiled as in some other species of the genus. Flower heads are purple to brownish purple with a yellow center.
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The Nature Conservancy. This rhizomatous perennial herb produces hairy stems a few centimeters tall. The leaves are somewhat lance-shaped and up to 5 to 7 centimeters long. The flower heads are lined with hairy, glandular phyllaries and contain many white or lavender ray florets each up to 1.3 centimeters long.
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Flower heads with 6–21 red, maroon or yellow ray florets (with a 0.8–2.5 cm long petal each) surrounding 12–50 yellow disc florets (with 0.1 cm long corolla lobes). Fruits (cypselae) oblanceolate to narrowly elliptic, 0.7–1 cm long, 3-angled or compressed, striate. Close-up of flower head.
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Olearia algida (Alpine Daisy Bush, Mountain Daisy Bush) is a species of flowering plant in the family Asteraceae. It is a shrub to 1 metre high with crowded leaves. These are dark green above and woolly underneath and have revolute edges. The flower heads have 2 to 6 white ray florets.
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The flower heads have a flattened oblong-ovoid shape and are around wide. the flowers have a brown base and two long opposite primary bracts. Between 6-22 flowers form in a terminal cluster, the flowers have a brown to yellowish colour. Brown ovoid fruit follow that contain small soft seeds.
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Leaves have small, thin spines along the edge, much smaller than those of related species. There are usually several flower heads, with pinkish-purple (rarely white) disc florets but no ray florets.Flora of North America, Carolina or purple or soft or smallhead thistle, Cirsium carolinianum (Walter) Fernald & B. G. Schubert.
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As a perennial plant, it grows to be an average of 0.3 m tall. The leaves are flat, the lower ones being elliptical in shape, while the upper ones are linear. They are wooly on both sides. The flower heads are arranged in loosely, a cross between umbel and panicle.
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The flower heads appear singly or in open arrays. Each head has a bell- to bullet-shaped involucre lined with hairy to woolly phyllaries. The head is discoid, containing no ray florets but many funnel-shaped yellow disc florets with long lobes. The florets often have white markings in the throats.
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The flowers are bright yellow, and held in cylindrical clusters up to eight millimetres in diameter. The spherical flower-heads are composed of 25 to 50 densley packed golden to light golden coloured flowers. The pods are flat and papery with a length of and a width of up to .
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The leaves are widely lance-shaped and toothed, the lowest approaching 11 centimeters in maximum length. The upper leaves are often studded with knobby glands. The flower heads appear singly at the tips of the stem branches. Each head is lined with phyllaries covered in large glands and sometimes many hairs.
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The flower heads appear singly in leaf axils, each lined with purple-tipped, glandular, woolly phyllaries. The head is discoid, containing no ray florets but a few tubular light lavender to nearly white disc florets with long, narrow lobes. The fruit is an achene with a whitish pappus on top.
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Diversidad Florística de Oaxaca: de Musgos a Angispermas 1–351. Universidad Nacional Autónoma de México, Ciudad Universitaria Isocoma veneta is a subshrub up to 70 cm (28 inches) tall. It produces flower heads in clusters at the tips of branches, each head with 17-26 disc flowers but no ray flowers.
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One plant can have more than 80 small flower heads, each with 9-12 yellow ray florets but no disc florets.Flora of North America, Dwarf alpine hawksbeard, Crepis nana Richardson Flora of China, 矮小假苦菜 ai xiao jia ku cai Askellia pygmaea (Ledebour) Sennikov, Komarovia. 5: 86. 2008.
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Calflora taxon report, University of California, Deinandra corymbosa (DC.) B.G. Baldw., coastal tarweed Deinandra corymbosa is an annual herb up to 100 cm (40 inches) tall. It produces many yellow flower heads, each with both disc florets and ray florets.Flora of North America, Deinandra corymbosa (de Candolle) B. G. Baldwin, Novon.
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It is a perennial herb growing up to about a metre in height. The leaves are up to long, usually deeply lobed, and hairy. The lower leaves are stalked, whilst the upper ones are stalkless. The inflorescence contains a few flower heads, each a hemisphere of black or brown bristly phyllaries.
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The leaves are in length and 8–30 mm in width. The inflorescences are specialised structures called pseudanthia, also known simply as flower heads, containing hundred of reduced flowers, called florets. The involucral bracts are coloured dull carmine, flushed with green. It is monoecious, with both sexes occurring in each floret.
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One plant can produce sometimes as many as 250 flower heads in a branching, flat-topped array. Each head has 6–8 yellow ray flowers and 25–50 tiny yellow disc flowers.Flora of North America, Hymenoxys rusbyi (A. Gray) Cockerell, 1904. Rusby’s rubberweed or bitterweed Cockerell, Theodore Dru Alison 1904.
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Leaflets of Western Botany 9: Plates 2 + 3 line drawings; captions on page 200 Hymenoxys tweediei is a succulent annual up to tall. Leaves are divided in thin, narrow segments. Flower heads each contain 135-196 disc flowers and 7-9 ray flowers.Hooker, William Jackson Arnott, George Arnott Walker 1841.
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Melaleuca glena was first formally described in 1999 by Lyndley Craven in Australian Systematic Botany from a specimen collected near Scaddan. The specific epithet (glena) is from the Ancient Greek glenos meaning “a thing to stare at" or "a thing to wonder at” referring to the lateral flower heads of this species.
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Melaleuca boeophylla is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is similar to a number of other Western Australian melaleucas such as M. filifolia with its purple pom-pom flower heads but its leaves are shorter and oval in cross-section.
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The simple inflorescences are located in the axillary racemes and have spherical-flower- heads that contain 12 to 25 pale yellow or cream-coloured flowers. After flowering coriaceous and brownish black to bluish-black seed pods form that usually have a curved shape with a length of and have a width of .
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21 Page 370, Foothill arnica, Arnica fulgens Pursh, Fl. Amer. Sept. 2: 527. 1813. The inflorescence holds usually one, but sometimes 2 or 3, daisylike flower heads lined in hairy phyllaries. Each head has a center of glandular golden disc florets lined with golden ray florets which are 1 to 3 centimeters long.
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They are thick, firm, and sometimes somewhat succulent. Leaves higher on the stem are smaller, thinner, and simpler, and may lack petioles. The inflorescence is a loose array of two or more flower heads with yellow disc florets and usually either 8 or 13 yellow ray florets up to a centimeter long each.
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The leaves have blades up to 12 centimeters long which are divided deeply into many narrow lobes. The inflorescence is made up of many clusters of flower heads. Each head has narrow phyllaries usually tipped with black, yellow disc florets and a fringe of yellow ray florets each about a centimeter long.
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Those higher on the stem are smaller. The lower leaves may have toothed edges. The inflorescence is usually a large, branching array of many flower heads of varying size. There are 16 to 50 ray florets per head, each measuring 3 to 14 millimeters long, in shades of blue, pink, or white.
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Cirsium ownbeyi is a perennial herb growing 30 to 70 centimeters (12-28 inches) tall from a taproot and branched caudex. There are one or more erect stems. The leaves are up to 30 centimeters (12 inches) long. The flower heads are oval and up to 2.5 centimeters (1 inch) long and wide.
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It is not a showy species. Propagation by means of cuttings has not yet been achieved, so in order to grow new plants one must sow the seed. It is not easy to grow. The flower heads are inadequate for use as a cut flower, being infrequent and having a short stalk.
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Payne, Willard William 1964. Journal of the Arnold Arboretum 45(4): 425 The inflorescence holds several spiny staminate (male) flower heads next to larger pistillate (female) heads. Each pistillate head produces usually two fruits, which are yellow-brown burrs nearly 2 centimeters wide. Each burr is rounded, sticky, and covered in hooked spines.
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Erechtites minimus is an annual or perennial herb up to 200 cm (80 inches) tall. Leaves are toothed but not pinnately lobed. One plant can produce as many as 200 yellow or purple flower heads, each with many small disc florets but no ray florets.Flora of North America, Erechtites minimus (Poir.) DC.
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The thick leaves are wavy and covered in feltlike hairs. They may have smooth, lobed, or toothed edges and small spines. The largest leaves at the base of the plant may reach in length. The inflorescence bears several clustered flower heads, each head up to 4 centimeters long and 6 cm wide.
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Turner, Billie Lee 1988. Phytologia 64: 259-262 in English, with distribution map, as Steviopsis thyrsiflora Asanthus thyrsiflorus is a branching shrub up to 100 cm (40 inches) tall. Flower heads have whitish disc florets but no ray florets. It grows in flats, creekbanks, and gravelly areas, often in pine-oak woodlands.
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They are deeply veined, coated in woolly hairs, and glandular but not shiny. The inflorescence is a cyme of sunflower-like flower heads borne on a hairy, leafless peduncle. The flower head has several yellow ray florets measuring up to 1.5 centimeters long. The fruit is an achene tipped with a pappus.
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Nipponanthemum nipponicum is a shrub up to 100 cm (40 inches) tall. Most of the alternate leaves are clustered near the top of the stem. Flower heads are up to 8 cm (3 inches)across and are borne singly. Ray flowers are white, disc flowers usually yellow but sometimes red or purple.
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Scientific Survey of Porto Rico and the Virgin Islands 6: 288, as Osmia borinquensisKing, Robert Merrill & Robinson, Harold Ernest. 1970. Phytologia 20: 201Tropicos, Chromolaena borinquensis (Britton) R.M. King & H. Rob. Chromolaena geraniifolia is a shrub up to 150 cn (5 feet) high. It produces blue flower heads at the ends of branches.
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Leaves occur in tufts at the ends of the stem branches. They are up to 15 centimeters long, oblong in shape, and sometimes very shallowly lobed. They are woolly when new but lose their hairs and become shiny green with age. The inflorescence is a large array of up to 35 flower heads.
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Ursinia is a genus of African plants in the chamomile tribe within the daisy family.Gaertner, Joseph. 1791. De Fructibus et Seminibus Plantarum 2: 462-463 in LatinGaertner, Joseph. 1791. De Fructibus et Seminibus Plantarum 2: plate XLXXIV (174), figures 7A-7L line drawings of flowers and flower heads of Ursinia paradoxaTropicos, Ursinia Gaertn.
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1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272 Brickellia gentryi is superficially similar to B. lanata but has thinner leaves and white, nodding (hanging) flower heads in groups of 2–3.Turner, Billie Lee 1992. Phytologia 73(5): 348–349 The species is named for American botanist Howard Scott Gentry, 1903–1993.
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One plant can produce numerous small flower heads in loose, branching arrays. Each head contains 5-10 disc flowers and sometimes one ray flower.Powell, Albert Michael. 1979. Annals of the Missouri Botanical Garden 65(2): 633 description and commentary in English, distribution map on page 610García-Mendoza, A. J. & J. A. Meave. 2011.
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Phytologia 68(4): 303–332 distribution map on page 308 Grindelia arizonica grows in prairies and thickets, and along streambanks. It is an perennial herb up to tall. The plant usually produces numerous flower heads in open, branching arrays. Each head has 8-26 ray flowers, although some individuals have no rays.
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Phytologia 68(4): 303–332 distribution map on page 307 Grindelia pusilla grows in open, dry sites, often disturbed. It is an annual herb up to tall. The plant usually produces numerous flower heads in flat-topped arrays. Each head has 13-27 ray flowers, surrounding a large number of tiny disc flowers.
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Inula salicina is an upright herb, in height, with a thin stem, narrow, elongate, alternate, stemless leaves, which with the stem are roughly haired. The flower heads are carried singly at the top of the stem, are in diameter. Each head contains 35-70 yellow ray flowers containing 100-250 yellow disc flowers.
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Gutierrezia serotina is a perennial herb or subshrub up to 30 cm (1 foot) in height. Leaves are very narrow, sometimes thread-like. At the end of each branch there is an inflorescence of one or a few flower heads. The heads are larger than for most of the species in the genus.
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Monolopia lanceolata is an annual herb producing a slender, sometimes branching stem up to about 80 centimeters tall. It is usually somewhat woolly in texture. The inflorescences at the ends of stem branches bear small hemispheric flower heads. The golden ray florets are 1 to 2 centimeters long and have three-lobed tips.
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The flower heads are tiny, fluffy and can be pale dusty pink or whitish. The fruit is an achene about 2 or 3 mm long, borne by a pappus with hairs 3 to 5 mm long, which is distributed by the wind. The plant over-winters as a hemicryptophyte. Eupatorium cannabinum bluete.
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Pluchea odorata is an annual or perennial herb growing erect to a maximum height over one meter. It is glandular, coated in rough trichomes (hairs), and strongly aromatic. The toothed oval leaves are up to long and alternately arranged on the stiff stems. The inflorescence is a large cluster of many flower heads.
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The shrub flowers throughout the year. The simple inflorescences have spherical flower-heads with a diameter of containing 25 to 75 densely packed deep yellow flowers. The straight to curved brown and firmly coriaceous seed pods that form after flowering have a broadly oblong shape and a length of and a width of .
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It has dark green leaves with prominent veins that are long and wide. The red flower heads, known as inflorescences, appear in late spring. Each is composed of up to 60 individual flowers. In the garden, T. oreades grows in soils with good drainage and ample moisture in part-shaded or sunny positions.
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It grows as a high shrub, with greyish branchlets covered with fine fur. The leaves are generally divided and up to long and wide. Flowering takes place in September, with the oval or globular flower heads appearing at the ends of stems. They are in diameter, with the individual cream-yellow flowers long.
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Baccharis plummerae is a bushy shrub producing many erect, slender stems approaching in maximum height.Jepson Meanual The leaves are linear to oblong in shape and sometimes have fine teeth along the edges. They may be up to long. The shrub is dioecious, with male and female plants producing flower heads of different types.
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Stylocline gnaphaloides is a small annual herb growing at ground level and reaching just a few centimeters in length. It is usually coated in white hairs, often woolly. The small, blunt leaves are alternately arranged, each up to 1.4 centimeters long. The inflorescence bears spherical flower heads each a few millimeters in diameter.
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Stems are round in cross-section, hollow. Leaves are fleshy, thick and sturdy, broadly ovate, up to 17 cm long. Flower heads are borne in panicles up to 50 cm long, in the axils of the leaves. Heads each have about 8 yellow ray flowers and 25-30 yellow-brown disc flowers.
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The erect or scrambling shrub typically grows to a height of and with a width of up to . It blooms from September to December and produces lemon- yellow to creamy-white flowers. The spherical flower heads can last until January or February and the seed pods take around a year to become mature.
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The inflorescence is a branching panicle of many yellow flower heads at the top of the stem, sometimes with over 200 small heads. Each head contains about 5-14 yellow ray florets a few millimeters long surrounding 6-20 disc florets. The fruit is an achene tipped with a pappus of bristles.
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The inflorescence bears one or more flower heads lined with pointed, roughly hairy phyllaries. The head has a center of many yellow disc florets and a fringe of 16 to 18 yellow ray florets roughly a centimeter long. The fruit is a woolly achene 2 to 3 millimeters long tipped with a pappus.
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Flower heads occur at intervals along the mostly naked stems, especially near the tips. Each has a cylindrical base covered in hairless phyllaries. It contains 3 to 6 florets, each with an elongated tube and a flat pink ligule. The fruit is an achene tipped with a spreading cluster of plumelike pappus bristles.
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There are smaller, narrower leaves along the lower part of the stem. The inflorescence is 1-3 flower heads lined on the lower outside with hairy phyllaries. The head has 45–90 blue or purple ray florets surrounding many yellow disc florets. The fruit is an achene with a pappus of bristles.
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The inflorescence generally contains 20–50 flower heads in a loose array. Each head can sometimes contain as many as 195 white ray florets surrounding many yellow disc florets.Flora of North America, Erigeron sceptrifer G. L. Nesom, 1990. Scepter-bearing fleabane erroneously says plant is only 8 cm tallNesom, Guy L. 1990.
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Leaves are narrowly oblanceolate, up to 13 cm (2.5 inches) long. The inflorescence is made up of 1-60 flower heads per stem, in a loose array. Each head contains 60–120 blue, white or pale lavender ray florets surrounding numerous yellow disc florets.Flora of North America, Erigeron tenuis Torrey & A. Gray, 1841.
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Leaves are narrowly oblanceolate, up to 13 cm (2.5 inches) long. The inflorescence is made up of 1-60 flower heads per stem, in a loose array. Each head contains 60–120 blue, white or pale lavender ray florets surrounding numerous yellow disc florets.Flora of North America, Erigeron tenuis Torrey & A. Gray, 1841.
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The inflorescence is an array of clusters of flower heads. Each head is lined with phyllaries that are coated densely with stalked knobby resin glands. It bears yellow, lobe-tipped ray florets a few millimeters long and several black-anthered disc florets. The fruit is a flat, hairless achene with no pappus.
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Leaves are pinnatifid with long narrow lobes. The plant generally produces an array of numerous flower heads per stem, each head with up to 75–130 white ray florets surrounding numerous yellow disc florets. The species grows in rocky, open locations in grasslands and conifer woodlands.Flora of North America, Erigeron oreophilus Greenman, 1905.
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Erigeron seravschanicus is an Asian species of flowering plants in the daisy family. It grows in subalpine meadows in Xinjiang, Kazakhstan, and Uzbekistan. Erigeron seravschanicus is a perennial, clumping-forming herb up to 30 cm (12 inches) tall, forming slender rhizomes. Its flower heads have lilac ray florets surrounding yellow disc florets.
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Erigeron kiukiangensis is a Chinese species of flowering plants in the daisy family. It grows on mountain slopes in southwestern China (Tibet and Yunnan). Erigeron kiukiangensis is a perennial, clump-forming herb up to 55 cm (22 jinches) tall, forming woody rhizomes. Its flower heads have red ray florets surrounding yellow disc florets.
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Erigeron pseudotenuicaulis is a Chinese species of flowering plants in the daisy family. It grows on hillsides in the province of Sichuan in southwestern China. Erigeron pseudotenuicaulis is a perennial herb up to 25 cm (10 inches) tall, forming a woody rhizomes. Its flower heads have red ray florets surrounding yellow disc florets.
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Erigeron vicarius is an Asian species of flowering plants in the daisy family. It grows in alpine meadows in Xinjiang, Uzbekistan, and Kazakhstan. Erigeron vicarius is a perennial herb up to 28 cm (11 inches) tall, producing a short, branching rhizomes. Its flower heads have blue ray florets surrounding yellow disc florets.
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Doxus, meaning "glory" or "splendour" in Greek, is usually interpreted as a reference to the often scarlet flowers of the genus. The prefix sca may be derived from the Greek skia meaning "shade" (sciadon is the Greek equivalent of the Latin umbella, "umbrella", used of flower heads in the form of umbels).
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Most of the leaves are close to the base of the stem. One plant can produce 1-15 flower heads, each with 10-15 yellow ray florets surrounding 75 or more red or purple disc florets. The plant grows in mixed woods and along roadsides.Flora of North America, Helianthus atrorubens Linnaeus, 1753.
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Flora of North America, A. Gray, 1865. Guirado’s goldenrod The inflorescence is a cluster of sometimes as many as 190 small flower heads in a branching, elongated array. Each flower head contains 10-21 yellow disc florets surrounded by up to 8-10 narrow yellow ray florets each 1 or 2 millimeters long.
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The spiny, bright light green leaves are up to 25 centimeters long and are divided into triangular lobes. The inflorescence is made up of several large flower heads each up to 7 centimeters wide. They are lined with long, spiny phyllaries and bear pink- purple tubular flowers up to 3 centimeters long.
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Thus it deserves full recognition as a distinct species.Flora of North America, Eupatorium godfreyanum Cronquist, 1985. Godfrey’s thoroughwort Eupatorium godfreyanum is a tall perennial sometimes over 3 feet (90 cm) tall. It has opposite, lance-shaped or egg-shaped leaves, and flat-topped arrays of a large number of tiny flower heads.
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The plants are pollinated by bees, butterflies and flies. The seeds are released from the flower heads about two months after flowering and are collected by ants that carry them to their underground nests. Chemicals released by fire have a positive effect on the germination of seeds of the yellow-trailing pincushion.
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It grows either as an erect or as a sprawling shrub, growing up to in height. The inflorescences are specialised structures called pseudanthia, also known simply as flower heads, containing hundred of reduced flowers, called florets. It is monoecious, both sexes occur in each flower. It blooms in spring, from June to January.
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The head contains many orange disc florets. Most flower heads lack ray florets but some may have a few small yellow rays. The fruit is a flat black or brown barbed cypsela up to a centimeter long which has two obvious hornlike pappi at one end.Devils Beggarticks or Stick-tights: Bidens frondosa.
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The stem and foliage are glandular and produce a sticky exudate. The plants produce bright yellow daisylike flower heads, with bases covered in large green phyllaries. The center of the head is filled with many yellow disc florets and the edge is fringed with toothed yellow ray florets about 2 centimeters long.
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The greaan and glabrous or sparsely haired phyllodes are in length and wide. It blooms from July to August and produces yellow flowers. The rudimentary inflorescences occur on single headed racemes along an axis that is less than long. The spherical to obloid shaped flower-heads contain 15 to 30 golden coloured flowers.
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This plant has erect, unbranched flowering stems, typically tall. The apex of the stem is topped by a round flower head, subtended by two leaves. These apical leaves are typically larger than those found on stems without flowers. The flower heads are white, sometimes tinged with purple, and 2–2.5 cm diameter.
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The plant is coated densely in long hairs. The small, narrow leaves are equal in size and evenly spaced along the stem. The inflorescence bears one or more flower heads on long erect peduncles, each lined with hairy, glandular phyllaries. The flower head contains many yellow disc florets but no ray florets.
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Euthamia leptocephala is a perennial herb or subshrub up to 100 cm (40 inches) tall. Leaves are alternate, simple, long and narrow, up to 8 cm (3.2 inches) long. One plant can produce many small, yellow flower heads flat-topped arrays. Each head has 7-14 ray florets surrounding 3-6 disc florets.
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Solidago faucibus is a perennial herb up to 150 cm (5 feet) tall, with a branching underground caudex. Leaves very broad, almost round, up to 20 cm (8 inches) long, with large teeth along the edges. One plant can produce as many as 70 small yellow flower heads in a branching array.
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Melaleuca spathulata is a shrub in the myrtle family, Myrtaceae, and is endemic to the south-west of Western Australia. It is a well known garden shrub featuring dark green leaves against light-coloured foliage, many twisted branches and profuse heads of bright pink "pom pom" flower heads in spring or early summer.
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There are usually several flower heads with white or pink disc florets but no ray florets. The species grows in grasslands, meadows, and the edges of forests in mountainous areas.Nuttall, Thomas 1841. Transactions of the American Philosophical Society, new series 7: 418–419Flora of North America, Hooker’s or white thistle, Cirsium hookerianum Nutt.
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On the reverse of the bill featured a scene from Campbell Island which is south of Stewart Island / Rakiura. The penguin shown on the note is the hoiho (yellow-eyed penguin), which is native to New Zealand. Bulbinella rossii, commonly known as the Ross lily, with yellow flower heads, was also featured.
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The inflorescence contains 3-70 flower heads borne on hairy, glandular peduncles. Each head contains up to 18 yellow ray florets each up to a centimeter long, and many disc florets at the center. The fruit is an achene which may be over a centimeter (>0.4 inches) long including its pappus.Heterotheca shevockii.
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This species is a branching shrub up to 2 meters tall. The toothed oval leaf blades are papery but not thin, and often have a fine coating of hairs. The flower heads grow in dense clusters in the leaf axils and at the branch tips. The pinkish purple florets have long, protruding styles.
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Leaves are long and narrow, up to 15 cm (6 inches) long. It is a perennial herb sometimes as much as 150 cm (5 feet) tall. One plant can produce 3-16 flower heads, each with 10-20 ray florets surrounding as least 75 disc florets.Flora of North America, Helianthus angustifolius Linnaeus, 1753.
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The flowers appear from August to May. The disc is yellow and rays are white or blue, the flower heads in diameter. Olearia tomentosa occurs in eastern New South Wales, where it is found south of the Hastings River, and Victoria. It grows on sandstone-based soils in dry sclerophyll forest and heath.
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Flora de Chiapas. Listados Florísticos de México 4: i–v, 1–246 Lactuca graminifolia is a biennial herb in the dandelion tribe within the daisy family growing from a taproot a height of up to 150 cm (5 feet). The top of the stem bears a multibranched inflorescence with many flower heads.
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The top of the stem bears a multibranched inflorescence with many flower heads. Each head contains 20-50 yellow ray florets but no disc florets.Flora of North America, Lactuca ludoviciana (Nutt.) Riddell 1835 It has been seen to hybridize wildly with Lactuca canadensis, and it is difficult to differentiate between the two species.
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Vexatorella obtusata is a prostrate or upright shrub of up to 1 m high and has linear or somewhat spoon-shaped leaves of 9–45 mm long and up to 5 mm wide, with flower heads at the tip of the branches and a single whorl of involucral bracts. V. alpina is an upright shrub of up to 1½ m high with groups of two to six heads at the tip of the branches, each subtended by a single row of bracts forming an inconspicuous involucre, and long inverted oval to elliptic leaves of 30–45 mm long ande 5–13 mm wide, which is an endemic of the Kamiesberg. V. amoena has flower heads each subtended by three or four whorls of bracts that form a conspicuous involucre, shorter oval to elliptic leaves of 15–30 mm long, which grows at the south end of the Kouebokkeveld Mountains and the adjacent Swartruggens range. V. latebrosa has solitary flower heads, each containing as much as forty to fifty flowers, line- to somewhat spoon-shaped leaves, and is an endemic of the Langeberg near Robertson.
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Oedera capensis is a prickly, sprawling shrublet of about high, that produces between two and six branches below the flower heads of the previous season. Stems are densely and alternately set with mostly hairless, erect to recurved, flat, leathery, narrow triangular leaves long and , with glands and silky hairs along the edges. Usually nine (rarely ten or eleven) flower heads are cropped at the tip of the branches in what seems at first sight a single flower head of mostly in diameter. The central head consists of yolk yellow disc florets only, while the remainder has disc florets and in addition a row of yolk yellow ray florets, burgundy on the reverse, where they do not touch the other heads.
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The flower heads are bourne at ground level, in order to facilitate access for rodents. The styles are stiff and wiry, but still flexible and robust enough to withstand rough treatment. These styles act to maintain a distance of some 10mm between the nectar sources and the stigma, which is the best 'fit' for the styles to rub across the rodents' snouts, on which pollen accumulates. It has also been theorised that this and other similar species have their flower heads hidden out of sight below tangles of branches and foliage for two reasons: first, it does not need to display its flowers for sight-dependent birds or insects to better find them, and second, because it affords visiting rodents better protection from predators, especially owls.
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Within the flower heads a large amount of insects can be encountered, especially beetles, ants and flies -these likely predate on the nectar and pollen although they likely also serve as much less effective incidental pollinators: in an experiment with similar species in which rodents were kept away from the flowers by wire mesh, which did let in insects, seed set was about half the normal amount. Honey bees are poor pollinators of this type of protea, although they usually harvest large amounts of nectar. The large scarab beetle Anisonyx ursus may on occasion occur in flower heads in large numbers. It is possible that some species of rodent-pollinated proteas make more or less use of bees and/or beetles as pollinators than do others.
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Leucospermum saxatile is an evergreen, rising to sprawling shrub of ½–¾ m (1⅔–2½ ft) high and 1–1½ m (3⅓–5 ft) wide, from the family Proteaceae. It has reddish tinged flowering stems and line-shaped, narrowing wedge-shaped leaves of 2½–5 cm(1–2 in) long and 2–5 mm (0.08–0.20 in) wide, with one to three blunt teeth, whorl-shaped, flat-topped, at first pale lime green but later carmine flower heads of 2½–3 cm (1–1¼ in) across, mostly individually but sometimes grouped with two or three, each on a stalk. The flower heads occur from July to October. From the flowers occur long styles with a slightly thicker tip, which together give the impression of a pincushion.
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The spherical flower-heads with a diameter of contain 40 to 60 yellow to bright yellow flowers. After flowering leathery straight to curved, flat seed pods form with a length of and a width of . The type specimen was collected by the botanist Alan Cunningham in 1827 on the Liverpool Plains of New South Wales.
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Leaves are basal, lance-shaped basal leaves 2–3 cm long, with ruffled or nearly lobed edges. The inflorescence contains 3 to 15 flower heads on woolly peduncles. Each head is lined with yellow-green to purple phyllaries nearly a centimeter in length. There is no more than one ray floret; this may be absent.
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The white flower heads appear from December to March in the species' native range. The species was formally described in 1967 by botanist Jim Willis in Muelleria. Willis gave it the name Helichrysum rogersianum. The species epithet honours Keith Rogers of Wulgulmerang who discovered it at Brumby Point on the Nunniong Plateau in East Gippsland.
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Its pendulous flowers are bell shaped, consisting of four petals, and yellow-cream spike inflorescence emerges from their axils. The flower heads are 1 cm long, and usually bloom between March and April. Male flowers and female flowers are separated. A male flower has eight stamens in two whorl- shaped flowers with one style.
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They are up to 3.5 centimeters long. The cylindrical flower heads are up to about half a centimeter wide and are borne in open inflorescences. Each head usually contains five aromatic pink or purple disc florets up to a centimeter long. The tips expand into five lobes and the narrow to threadlike style branches protrude.
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The foliage is made up of woolly leaves divided into many thin, flat, threadlike segments. The inflorescence is a narrow cluster of several flower heads. The fruit is a tiny resinous achene with a pappus of hairs.Flora of North America Vol. 19, 20 and 21 Page 530 Island sagebrush, Artemisia nesiotica P. H. Raven, Aliso.
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The flat fruits are small and dry and look like bugs. Many of its species are cultivated. The 75 to 80 Coreopsis species are native to North, Central, and South America. They have showy flower heads with involucral bracts in two distinct series of eight each, the outer being commonly connate at the base.
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Coreopsis latifolia, a rhizomatous perennial herb, grows up to tall. The leaves are oval and may exceed long by wide. The inflorescence is a corymb of flower heads, each with five phyllaries which may be over a centimeter long. The head contains yellow ray florets between 1 and 2 centimeters long and yellow disc florets.
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The leathery oval leaves are up to 2.5 centimeters long. They are shiny and hairless on the upper surfaces and woolly-haired on the undersides. The inflorescence is a panicle of bell-shaped flower heads containing disc florets. The fruit is an achene up to 8 millimeters long including its pappus of barbed white hairs.
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It blooms between August and November producing yellow flowers. The simple inflorescences appear singly or in pairs on racemes with an axis that is around in length. The spherical flower-heads usually contain 17 to 22 light golden flowers. The seed pods that form after flowering are strongly curved to openly coiled and sometimes twisted.
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CONABIO, México D.F.. and also found in the southwestern United States (Arizona, New Mexico, western Texas).Biota of North America Program 2014 county distribution map Baccharis pteronioides is a shrub up to 100 cm (40 inches) tall, with thick, leathery leaves and many small flower heads. It grows in dry woodlands, grasslands, and canyons.
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Members of the subtribe are either subshrubs (Argyranthemum) or annual herbs (the remaining genera). The genus Heteranthemis has glandular hairs; the others either lack hairs or have non- glandular hairs. The flower heads (capitula) are solitary or arranged in loose corymbs. The ray florets are female, the long petal (ligule) usually being white or yellow.
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Brickellia mcdonaldii is a Mexican species of flowering plants in the daisy family. It is native to northeastern Mexico in the state of Tamaulipas. Brickellia mcdonaldii is a perennial herb up to 50 cm (20 inches) tall. The plant flower heads in groups of 5–8, with purplish disc florets but no ray florets.
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1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272Biota of North America Program 2014 county distribution map Brickellia amplexicaulis is a branching shrub up to 200 cm (80 inches) tall. Its leaves partially surround the stems. The plant produces many small flower heads with yellow or cream- colored disc florets but no ray florets.
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Chaenactis nevii is a perennial up to 30 cm (12 inches) tall. Each branch produces 1-3 flower heads each containing yellow disc florets but no ray florets.Flora of North America, John Day pincushion, Chaenactis nevii A.Gray The species is named for American missionary and botanist Reuben Denton Nevius (1827-1913).Gray, Asa 1883.
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Felicia canaliculata is a grayish green shrublet in the daisy family that grows up to in height. It has narrow, awl-shaped leaves, relatively large flower heads with approximately a dozen light purple to white ray florets encircling many yellow disc florets. It can only be found in the Western Cape province of South Africa.
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1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272Biota of North America Program 2014 county distribution mapRose, Joseph Nelson. 1895. Contributions from the United States National Herbarium 1: 333 as Brickellia colimae Brickellia hebecarpa is a branching shrub up to 150 cm (5 feet) tall with purple flower heads borne on short side branches.
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The leaves and stems emit a milky sap when cut. One plant will produce several flat-topped arrays of flower heads, each head containing numerous yellow ray flowers but no disc flowers.Flora of North America, Sonchus asper (Linnaeus) Hill, 1769. Spiny-leaf sow-thistle, laiteron rude Flora of China, Sonchus asper (Linnaeus) Hill, 1769.
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Gamochaeta pensylvanica is an annual herb up to tall. Leaves are up to long, light green because of woolly hairs on the surfaces (though not as dense as in some related species). The plant forms many small flower heads in elongated arrays. Each head contains 3–4 purple disc flowers but no ray flowers.
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The stem is very short and the branches extend outward, making the plant squat in stature, sometimes forming a patch on the ground. The alternately arranged leaves are linear. The disc-shaped flower heads are clustered in glomerules 1 or 2 centimeters wide. There are layers of tiny woolly phyllaries around the flower head.
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The flower heads are set individually at the tip of the branches. The lilac to purple corollas of the disc florets are deeply split, creating five coiled lobes. The anthers have stump tips, long pilose tails, and produce pollen that is higher than wide. The branches of the style are finely grainy on the outside.
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Phytologia 68(4): 303–332 distribution map on page 307 Grindelia oxylepis grows in moist valleys and fields. It is an annual or biennial herb up to tall. The plant usually produces numerous flower heads in open, branching arrays. Each head has 20-30 ray flowers, surrounding a large number of tiny disc flowers.
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33: 156. 1906. SEINet Southwest Biodiversity photos, description, distribution map It is a perennial up to 10 cm (4 inches) tall with a thick underground caudex. Most of the leaves are in a basal rosette. Flower heads are usually produced one at a time, with white to pink disc florets but no ray florets.
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Phytologia 68(4): 303–332 distribution map on page 307 Grindelia microcephala grows in rich bottom lands along streams. It is an annual herb up to tall. The plant usually produces numerous flower heads in open, flat-topped arrays. Each head has 16-27 ray flowers, surrounding a large number of tiny disc flowers.
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This plant is a small perennial herb forming a dense rosette of thick leaves up to 3.5 centimeters long. It grows from a taproot and caudex. The flower heads are cup-shaped and up to 2.8 centimeters wide. The ray florets are blue to lilac in color and measure up to 1.6 centimeters in length.
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Flora of North America, Brickellia greenei A. Gray The inflorescences hold widely spaced flower heads, each about long and lined with narrow, pointed phyllaries. Each flower head holds a nearly spherical array of about 60 thready disc florets. The fruit is a hairy cylindrical achene about long with a pappus of bristles.Gray, Asa 1877.
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The shrub or tree has a spindly open habit and typically grows to a height of around . It has pendulous branches and red-brown coloured slender branchlets. The filiform, terete to quadrangular, phyllodes have a length of and a width of . The simple inflorescences have spherical flower-heads that contain around 35 yellow coloured flowers.
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Tephroseris integrifolia subsp. maritima, also known as the spathulate fleawort or South Stack fleawort, is endemic to Holyhead Island, occurring only around South Stack. It is a subspecies of the field fleawort Tephroseris integrifolia. It is a single-stemmed plant, typically with more than six capitula (flower heads), which flowers between April and June.
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Each inflorescence has a zig-zag shaped axis with a length of . The spherical flower-heads have a diameter of and contain 20 to 40 bright yellow flowers. After flowering firmly papery to thinly leathery seed pods that are flat and straight to slightly curved form. The hairy brown pods are in length and wide.
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Systematic Botany Monographs 29: 59. Hieracium pringlei is an herb up to tall with woolly hairs, with leaves both on the stem and in a rosette at the bottom. Leaves are up to long, hairy, occasionally with teeth on the edges. One stalk can produce 3-20 flower heads in a flat-topped array.
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Unadilla humeralis is a moth of the family Pyralidae described by Arthur Gardiner Butler in 1881. It is endemic to the Hawaiian islands of Kauai, Oahu, Molokai and Hawaii. The larvae feed on Ageratum conyzoides, Bidens, Dahlia and marigold. They feed in the flower heads of their host plant and also bore in the stems.
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Rhynchephestia is a monotypic moth genus of the family Pyralidae described by George Hampson in 1930. Its single species, Rhynchephestia rhabdotis, described by the same author in the same year, is endemic to the Hawaiian island of Maui. The larvae feed on Argyroxiphium sandwicense macrocephalum. They feed in the flower heads, destroying the seeds.
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Baccharis sergiloides is a shrub producing many erect, branching stems approaching 2 m (6 ft) in maximum height. The leaves are mostly oval shape and up to about long. The leaves generally fall by the time the plant blooms. The shrub is dioecious, with male and female plants producing flower heads of different types.
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It is a small annual herb growing at ground level and reaching just a few centimeters in length. It is usually coated in white hairs, often woolly. The small, pointed leaves are oval to lance-shaped and measure up to 1.5 centimeters long. The inflorescence bears spherical flower heads each a few millimeters in diameter.
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The basal and lower stem leaves are divided and toothed, and are borne on winged petioles. The upper leaf blades are smaller and simple. The cylindrical flower heads are often solitary but may grow in clusters, and are located along the branches and at the ends. They contain several yellow florets that soon wither.
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The phyllodes have a length of and a width of around . The simple inflorescences occur singly per axil. The small spherical flower-heads contain 8 to 18 bright lemon yellow flowers. The blackish glabrous seed pods that form after flowering have a length of and a width of and contain one to three oblong seeds.
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Jungia schueraeis a branching shrub up to 2.5 m tall. Leaves are without stipules; blades are round to heart-shaped in general outline, up to 10 cm long and 11 cm wide, with 5–7 palmate lobes. Flower heads are born in a dense paniculate array. Each head contains 17–25 pale yellow flowers.
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Liatris is in the tribe Eupatorieae of the aster family. Like other members of this tribe, the flower heads have disc florets and no ray florets. Liatris is in the subtribe Liatrinae along with Trilisa, Carphephorus, and other genera. Liatris is closely related to Garberia, a genus with only one species endemic to Florida.
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The plant generally produces only 1-3 flower heads per stem, each head with up to 60 white ray florets surrounding numerous yellow disc florets. The species grows shaded cliff-faces in pine-oak forest.Flora of North America, Erigeron lemmonii A. Gray, Proc. Amer. Acad. Arts. 19: 2. 1883. Lemmon’s fleabane Gray, Asa 1883.
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It is an annual herb up to 40 centimeters (16 inches) tall, producing a narrow taproot. The inflorescence is made up of 1-20 flower heads per stem, in a loose array. Each head contains 95–250 blue or white ray florets surrounding numerous yellow disc florets.Flora of North America, Erigeron tenellus de Candolle, 1836.
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The plant generally produces one or two flower heads per stem, each head with numerous yellow disc florets but no ray florets. The species grows on ridges and in cracks in rocks in conifer woodlands.Flora of North America, Erigeron ovinus Cronquist, 1947. Sheep fleabane The oldest name for this plant is Erigeron caespitosus subsp. anactis.
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Erigeron tianschanicus is an Asian species of flowering plants in the daisy family. It grows on open slopes in Xinjiang and Kazakhstan. Erigeron tianschanicus is a perennial, clumping-forming herb up to 60 cm (2 feet) tall, producing woody rhizomes and a branching caudex. Its flower heads have blue ray florets surrounding yellow disc florets.
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Erigeron lanuginosus is a Chinese species of flowering plants in the daisy family. It grows on alpine slopes at high elevations in Tibet. Erigeron lanuginosus is a perennial, clump-forming herb up to 25 cm (10 inches) tall, forming a branching, woody rhizome. Its flower heads have bright purple ray florets surrounding yellow disc florets.
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Erigeron leioreades is an Asian species of flowering plants in the daisy family. It grows in spruce forests and alpine meadows in Siberia, Xinjiang, and Kazakhstan. Erigeron leioreades is a perennial, clump-forming herb up to 37 cm (15 inches) tall, forming underground rhizomes. Its flower heads have lilacray florets surrounding yellow disc florets.
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Erigeron oreades is an Asian species of flowering plants in the daisy family. It grows on slopes and meadows in Xinjiang, Mongolia, Kazakhstan, and Siberia. Erigeron oreades is a perennial herb up to 25 cm (10 inches) tall, forming a slim underground rhizomes. Its flower heads have pale purple ray florets surrounding yellow disc florets.
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Erigeron porphyrolepis is a Chinese species of flowering plants in the daisy family. It grows on slopes and meadows in Sichuan and Tibet. Erigeron porphyrolepis is a perennial, clumping-forming herb up to 27 cm (11 inches) tall, forming a thick woody rhizomes. Its flower heads have purple ray florets surrounding yellow disc florets.
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The stem and leaf surfaces have a few short, stiff hairs. Flower heads are in diameter with bright yellow rays around a dark purplish brown center (the disc flowers). Flowers are produced in September and October, much later than many other sunflowers. This species was added to the Endangered Species Act on October 20, 1999.
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It blooms between July and October producing yellow flowers. The simple inflorescences are found in groups of 2 to 19 in an axillary raceme. The spherical flower-heads have a diameter of and contain four to eight yellow to dark yellow coloured flowers. Following flowering firmly papery to thinly leathery glabrous seed pods form.
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It blooms from August to October and produces yellow flowers. The rudimentary inflorescences are found on two headed racemes that have an axes of in length. The spherical flower-heads contain 16 to 32 golden flowers and have a diameter of . The seed pods that form after flowering are curved or a singular coil.
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Leaves and stems generally have no hairs, and the undersides of the leaves sometimes appear pale because of a layer of wax on the surface. One plant usually produces 1-6 flower heads. Each head has 5-10 yellow ray florets surrounding 40 or more yellow disc florets. The plant grows soils derived from shale.
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It blooms between December and February producing inflorescences in panicles or racemes with spherical flower-heads that have a diameter of and contain 30 to 55 pale yellow to cream coloured flowers. The straight, flat seed pods that form after flowering have a length of and a width of that are firmly papery to leathery.
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Like other members of its genus, it has a milky sap and flower heads composed of smaller strap-like flowers called "ligules". The species is native to the western United States, excluding much of the Pacific Northwest, and into northern Mexico. It is a dicot. M. glabrata is typically tall with a flower head.
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Flower-heads are radiate and urn-shaped. Ray florets are nearly always absent. When they occur, there is a yellow ligule. The corolla has a yellow disc surrounded by 4–6 dull golden yellow disc florets to long with hairless tubes, a slight expansion below the middle and lobes 1.3 millimetres to 2 millimetres wide.
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The glabrous to sub- glabrous green phyllodes have a length of and a width of with obscure nerves. It blooms from August to October and produces yellow flowers. The inflorescences occur on single headed racemes along an axis with a length of around . The oblois shaped flower-heads contain 20 to 25 golden coloured flowers.
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20 Page 190, Resinbush, Chrysothamnus stylosus (Eastwood) Urbatsch, R. P. Roberts & Neubig, Sida. 21: 1627. 2005. Biota of North America Program 2013 county distribution map Chrysothamnus stylosus is a shrub up to 120 cm (48 inches) tall with bark that tends to turn gray and flaky when it gets old. Flower heads are yellow.
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Leaves are lyrate-pinnatilobed, up to long, sometimes becoming purplish as they get old. One plant can produce several pink or purplish flower heads. The plant is erect and sparingly hairy, soft-stemmed, and grows to 20 to 70 cm high with a branch tap root. The leaf pattern is alternate with winged petioles.
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Antennaria pulchella is a small, mat-forming perennial herb growing a patch of woolly grayish leaves dotted with purplish glands. It spreads via a tangled network of stolons. The erect inflorescence reaches no more than about 12 centimeters tall. The species is dioecious, with male and female plants producing flower heads of slightly different morphologies.
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Hooker describes it as "a small, densely tufted, moss-like herb", with stems that are high. The leaves overlap, and are recurved, rigid, and leathery. They are 1/4-1/3 in long, narrow ovate or lanceolate, acute, concave above. The flower heads are aggregated amongst the upper leaves and 1/10 in long.
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It produces one to many stems 7 to 70 centimeters tall. It is a hairy plant, and the hairs are usually glandular, at least near the top of the stem. The basal leaves are 1 to 7 centimeters long, and leaves higher on the stem are smaller. The inflorescence can hold over 100 flower heads.
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The leaves are linear, narrow and slightly glaucous. The inflorescences are specialised structures called pseudanthia, also known simply as flower heads, containing hundred of reduced flowers, called florets. These inflorescences are surrounded by petal-like appendages known as 'involucral bracts'. These bracts are pale green or greenish white base colour, this being flushed with carmine.
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Eriophyllum is an annual or perennial shrub or subshrub, some species growing to a height of 200 cm (6.7 feet). Leaves present generally alternate and entire to nearly compound, with woolly hairs on some of the species. The inflorescence contains numerous yellow flower heads in flat- topped clusters. The involucre structure is obconic to hemispheric.
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The loosely packed spherical flower-heads contain 5 to eleven cream to pale yellow coloured flowers. The seed pods that form between September and December. The coriaceous, brown, brownish black or purplish black pods have straight sides but are sometimes constricted irregularly between the seeds and have a length of and a width of .
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Crepis phoenix, is a Chinese species of plants in the dandelion tribe within the sunflower family. It has been found only in the Province of Yunnan in southern China. Crepis phoenix is a perennial herb up to 70 cm tall, with a large taproot. It produces a flat-topped array of numerous small flower heads.
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They are known generally as rock daisies. Perityle is a variable genus, with its members sharing few characteristics. They include small herbs to spreading shrubs and most bear yellow or white daisylike flower heads. The fruit is generally a flat seed with thickened margins which may or may not have a pappus or scales.
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The many-branched stem is erect to a maximum height of around a meter. It is gray- green and woolly with many narrow leaves. Atop the stem branches are inflorescences of several pointed oval-shaped pale yellowish, cream, or white flower heads. Each woolly head is a few millimeters across and contains many tiny flowers.
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It flowers between July and October producing a solitary flower-spike solitary with bright yellow, globular flower-heads. It will later form dark brown seed pods with a curving and often twisted linear shape. Each pod is around in length with a width of . Pods contain hard, dark brown seeds with an ovoid shape.
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The simple inflorescences occur in pairs or in groups of three in the axils. The obloid to cylindrically shaped flower-heads have a length of and a diameter of with a subdense packing of light golden flowers. The twisted, linear, chartaceous seed pods that form after flowering have a length of and a width of .
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The leaves are deeply divided into many variously-shaped lobes which may have toothed edges or smaller lobes. The inflorescence bears flower heads lined with glandular, hairy to woolly phyllaries. They are filled with numerous yellow ray florets but no disc florets. The fruit is an achene up to a centimeter long including its pappus.
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It has large elliptic leaves to 2 cm wide that are convex, which are papery to leathery in texture. The flowers are relatively larger than other forms and markedly hairy. The distinctive 'Picton form' has narrow elliptic leaves and smaller flower heads. This form resembles G. kedumbrensis and may be reclassified as a different taxon with future study.
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The upright habit and large conspicuous flower heads make L. patersonii attractive as a cut flower and ornamental species. Because it is adapted to lime, it is used to make hybrids that can grow on a range of soil types. Several such hybrids have been developed by crossing L. patersonii with L. conocarpodendron, which is itself intolerant of lime.
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Melaleuca glena is a plant in the myrtle family, Myrtaceae and is endemic to the south of Western Australia. It is similar to the commonly cultivated Melaleuca nesophila with its purple "pom-pom" flower heads but is a smaller shrub with the inflorescences much more often on the sides of the branches and only occasionally on the ends.
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Melaleuca barlowii is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is similar to a number of other Western Australian melaleucas such as M. conothamnoides with its purple pom- pom flower heads but is a more erect shrub with different leaves and the fruiting clusters have a different shape.
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This thistle is a perennial herb which can grow to 200 cm (80 inches) in height. The plant is mostly purple, particularly the stems and inflorescences. The rosetted leaves are up to 50 cm (20 inches) long and are mostly green, edged with yellow spines. Each robust plant produces many flower heads which hang on nodding branches.
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Tetraneuris acaulis is a "highly variable" plant is a perennial herb which may be quite tiny to over 60 centimeters (2 feet) in height. The erect stems are surrounded by basal leaves. The leaves may be hairy or hairless, and glandular or without glands. There may be few or many flower heads borne singly on hairy stalks.
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The stems are covered in many leaves, which are linear in shape, thick, and measure up to 12 centimeters long. The lower leaves become dry and curl up. The flower heads are lined by about 13 green-tipped phyllaries. They contain many yellow disc florets and each has usually 8 narrow yellow ray florets about a centimeter long.
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The leaves are decurrent, their bases extending down the stem at their attachment. The blades are up to 15 centimeters long and linear or lance- shaped. The inflorescence is a large panicle of leafy branches and many flower heads with white or pale purple ray florets measuring 1 to 2 centimeters long. The center contains many yellow disc florets.
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Holocarpha heermannii is an annual herb growing mostly erect from to over in height. The stem is densely glandular and coated in short and long hairs. The leaves are up to long near the base of the plant and those along the stem are smaller. The inflorescence is a spreading array of branches bearing clusters of flower heads.
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Lasthenia glaberrima is an annual herb producing a mostly erect, hairless stem to maximum heights near 35 centimeters. The stem may branch or not, and it bears hairless linear leaves up to about 10 centimeters long. Atop the stem is an inflorescence of flower heads with fused, pointed phyllaries. The head contains many yellowish or greenish disc florets.
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In Florida they have been recorded from the end of March to the end of June and again from mid-August to mid-December. The larvae feed on Conoclinium coelestinum, Carphephorus paniculatus, Carphephorus odoratissimus, Pluchea rosea and Eupatorium cannabinum.Annotated Checklist of the Pterophoridae (Lepidoptera) of Florida The feed within the composite flower heads of their host plant.
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It may be glandular and resinous and slightly woolly or hairless. Atop each of the many erect branches is an inflorescence of golden yellow flower heads. Each centimeter-wide head has up to 14 disc florets and sometimes up to 5 ray florets but sometimes none. The dense inflorescence has resin glands and some woolly fibers.
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The flower heads are solitary or borne in wide arrays. There are usually about 8 ray florets, but there may be 2 to 13 per head. They are yellowish on the upper surface but the undersides may be green, red, or maroon, or have darker veins. There are many disc florets in shades of yellow, red, or maroon.
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All leaves are hairless, base stalkless, ear-shaped, arrow-shaped or semi-stem-clasping. Blue flower-heads are bore on top of the stem and branches arranged in loose corymbose inflorescence, each flower head containing ray flowers but no disc flowers. Achenes light brown, oblanceolate, long 2.3 mm, width of 1 mm. Pappus white, thin, hairy, 3 mm long.
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It is a vigorous, spreading perennial plant growing from woody rhizomes to a maximum height of . Its leaves are located along the stem, the basal leaves dying off as the plant bolts. They are sometimes slightly toothed or lobed near the tips. The inflorescences hold one or more flower heads which are each about 1 cm (0.4 inches) wide.
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Flora of North America, Erigeron parishii A. Gray 1884. Parish’s fleabane The erect stems have inflorescences of one to ten flower heads, each between one and two centimeters (0.4-0.8 inches) wide. The flower head has a center of golden yellow disc florets and a fringe of up to 55 lavender, pink, or white ray florets.
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The basal leaves have rounded, oval, or widely lance-shaped blades up to 10 centimeters long which are borne on very long petioles. Leaves higher on the stem have no petioles, their bases clasping the stem. They are narrow and pointed with serrated edges. The inflorescence bears several flower heads in a loose or dense, flat- topped array.
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The inflorescence is made up of flower heads containing yellow flowers.Hieracium piloselloides. Flora of North America. In the eastern Canadian provinces and eastern United States this plant can be found in many types of habitat, including disturbed fields, abandoned pastures, human-constructed marshes and riverbanks, lakeshores, dunes, beaches, grasslands, shrublands, savannas, alvar, and many types of forest.
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The flower heads are solitary or borne in inflorescences of up to 20. The head is spherical to cylindrical and covered in several layers of spreading or curving spine-tipped phyllaries. It contains long, tubular disc florets in shades of white, pink, or purple. The fruit is a cypsela tipped with a pappus of barbed bristles or scales.
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It is deciduous, dropping its leaves during the dry summer when it becomes dormant. The inflorescence is a raceme of small clusters of flower heads sprouting from leaf axils. Each head contains several tiny bell-shaped sterile disc florets and a few fertile ray florets. The fruit is a tiny hairy achene less than a millimeter long.
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The evergreen foliage is dark green, glandular, sticky, and very aromatic. New twigs and leaves are somewhat woolly, but older parts are hairless. The narrow inflorescence holds clusters of flower heads lined with rough, shiny, slightly hairy phyllaries and containing yellowish disc florets. The fruit is an achene up to 2 millimeters long, sometimes with a pappus.
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Artemisia palmeri is a perennial or biennial herb producing brittle erect or spreading stems tall.Jepson: Artemisia palmeri The base is woody.Lady Bird Wildflower Center, University of Texas The gray-green aromatic foliage is made up of long, narrow leaves deeply cut into several narrow, pointed lobes. The inflorescence contains clusters of flower heads containing pale yellow glandular disc florets.
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The upper leaves are smaller and have woolly, glandular surfaces. The inflorescence is sparsely flowered in flower heads which open in the evening and close early in the morning. Each small head has five short light yellow ray florets with lobed tips, and six yellow disc florets. The fruit is an achene a few millimeters long with no pappus.
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Every plant species has a unique floral fragrance composition. the fragrance that C. arvense emits attracts both pollinators and florivores containing compounds that attract each respectively. Nonnative honeybees are shown to have the highest visitation rate, following other bee species such as halictus and lasioglossum. Hover flies are also commonly seen pollinating the flower heads of this plant.
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The flower heads are surrounded by 'involucral bracts'; these bracts are cream-coloured and glabrous. Together with Protea curvata and P. rubropilosa this species has a large receptacle at the base of the flower head which has a dome-shape – this is thought to be a more basal evolutionary characteristic. The style is 65 to 80mm in length.
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This is an annual or biennial herb producing a single erect green to reddish stem up to in maximum height. It is generally hairless and unscented. The frilly leaves are up to long and divided into thin, lance-shaped segments with long teeth. The inflorescence is a dense rod of clusters of flower heads interspersed with leaves.
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This species is an annual herb which generally remains small in its native habitat but in cultivation may be much larger. It grows from a taproot. The small leaves are linear or lance-shaped and just a few millimeters wide. The flower heads contain several yellow ray florets which may reach nearly a centimeter in length.
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A simple or branched inflorescence gives rise to daisy-like flower heads. The exceptions are a handful of attractive purple- flowered species that are deciduous geophytes. Most if not all species are self-incompatible. The seeds are often proportionately heavy and probably do not travel far from the parent plant without the assistance of brisk winds.
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The ordinary Ageratum is a perennial, herbaceous plant or a dwarf, or shrub. The plant grows to 0.3–1 m high, with ovate to triangular leaves 2–7 cm long, and blue flowerheads (sometimes white, pink, or purple). The flower heads are borne in dense corymbs. The ray flowers are threadlike and fluff-haired, leading to the common name.
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The inflorescence is a panicle of woolly flower heads containing disc florets. The fruit is an achene 1 to 2 millimeters long with a pappus of barbed white hairs up to 5 millimeters long. Volcanic debris on Mount Taranaki has been colonized by this species, which occurs in dense stands up to 100 years old.Clarkson, B. D. (1990).
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Olearia myrsinoides, commonly known as Silky Daisy-bush, is a species of flowering plant in the family Asteraceae. It is a shrub to 1.5 metres high with toothed leaves. These are dark green above and tomentose underneath. The flower heads have 2 to 4 white ray florets and 3 to 4 pale yellow or violet disc florets.
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The inflorescence is a cyme of up to 16 sunflower-like flower heads with deep yellow ray florets each up to 2.5 centimeters long. At the center are up to 100 disc florets with long yellow corollas and dark brown anthers. The fruit is a brown, winged achene over a centimeter in length including the pappus at the tip.
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Phytologia 64(3): 205–208 Berlandiera lyrata var. monocephala, with distribution map on page 208 Berlandiera monocephala is an herb up to 100 cm (40 inches) tall. It has flower heads borne one at a time, each with yellow ray florets and yellow disc florets. The species is found in pine-oak forests in the mountains.
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Rhodora 34:116-117Fernald, Merritt Lyndon 1913. Rhodora 15(172): 76 Bidens heterodoxa is an annual herb up to 50 cm (20 inches) tall. It produces as many as 3 flower heads containing yellow disc florets but usually no ray florets (occasionally 1, 2, or 3). The species grows mostly along the banks of estuaries and coastal salt marshes.
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The soft, woolly leaves are narrow and threadlike, growing up to 4 centimeters long. Shorter leaves occur in clusters around the primary leaves. The inflorescence bears 4 to 6 flower heads which are each enveloped in four or five woolly phyllaries. Each head contains up to four or five light yellow flowers each around a centimeter long.
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The simple racemose inflorescences have a length of containing globular flower-heads, each made up of around 25 pale golden flowers. The dark-brown glabrous seed pods that form later are rounded-over seeds and are up to long and wide, dark brown, glabrous. The shiny black seeds within have a length of and are wide.
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Flora of the British West Indian Islands 359 description in English, as Eupatorium trigonocarpumKing, Robert Merrill & Robinson, Harold Ernest 1970. Phytologia 20: 207 Chromolaena trigonocarpa is a branching shrub or subshrub with curved hairs on the stem. It has opposite leaves with teeth and a pointed tip. Flower heads are displayed in a flat-topped array.
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Phytologia 62: 164Plants of the Eastern Caribbean, Chromolaena impetiolaris (Griseb.) Nicolson Jstor Global Plants, Chromolaena impetiolaris (Griseb.) Nicolson includes photo of herbarium specimen Chromolaena impetiolaris is a shrub lacking hairs on its herbage. It has opposite leaves with no petioles but with numerous small glands on the blades. Flower heads are displayed in a flat-topped array.
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1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272 Chromolaena bigelovii is a shrub up to 150 cm (5 feet) tall. Flower heads are produced in groups of 3, but sometimes they grow one at a time. The heads contain blue or white disc florets but no ray florets.Flora of North America, Bigelow’s false thoroughwort, Chromolaena bigelovii (A.
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It blooms from November to December and produces cream-yellow flowers. The simple inflorescences occur singly or in pairs in the axils. The spherical flower-heads contain 12 to 22 golden or creamy coloured flowers. The curved red-brown coloured seed pods that form after flowering have a length of up to and a width of around .
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1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272Biota of North America Program 2014 county distribution map Brickellia venosa is a branching shrub up to 80 cm (32 inches) tall, growing from a woody caudex. It produces many small flower heads with yellow disc florets but no ray florets.Flora of North America, Brickellia venosa (Wooton & Standl.) B.L.Rob.
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They grow to a length of around and a width of . The solitary inflorescences are axillary with large globular flower heads. After flowering seed pods form that are red to brown in colour. The pods are flat to undulating and around long and wide containing seeds which are dark brown or mottled with an elliptic shape.
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The plant produces an inflorescence just a few centimeters to half a meter tall consisting of flower heads which are cylindrical to hemispheric in shape. Each head contains many yellow to orange disc florets and sometimes a few ray florets. The fruit is a long, narrow achene 1 to 2 centimeters in length including its pappus of plumelike bristles.
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Revista mexicana de biodiversidad 80(1) in Spanish with line drawings and distribution mapsThe International Plant Names Index Chrysactinia luzmariae is a shrub up to 50 cm (20 inches) tall. Leaves are pinnately lobed with a sharp point at the tip. Flower heads have yellow ray flowers and yellow disc flowers. The species grows in brushy chaparral regions.
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Flaveria cronquistii is a rare Mexican plant species of yellowtops within the sunflower family. It has been found only in the States of Puebla and Oaxaca in central Mexico. Flaveria cronquistii is a shrub up to 170 cm (68 inches or 5 2/3 feet) tall. One plant can produce numerous small flower heads in loose, branching arrays.
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Flaveria robusta is a rare Mexican plant species of yellowtops within the sunflower family. It has been found only in Colima and nearby western Michoacán in west-central Mexico. Flaveria robusta is a shrub up to 170 cm (68 inches or 5 2/3 feet) tall. One plant can produce numerous small flower heads in loose, branching arrays.
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The inflorescence is a wide open panicle of several flower heads. Each small head is cylindrical and narrow, its base wrapped in lance-shaped phyllaries. At the tip of the head bloom 3 or 4 flowers, which are ray florets; there are no disc florets. Each floret has is white to pale pink and has a toothed tip.
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Phytologia 24(3): 67–69 description in Latin, habitat information in Englishphoto of herbarium specimen collected in Nuevo León in 1993 Flyriella stanfordii grows amidst luxuriant vegetation in moist canyons. Its stem is covered with long hairs. Leaves are egg-shaped, up to long. One plant will produce numerous flower heads tightly packed into a flat-topped array.
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The basal rosette of leaves may be up to 30 centimeters (1 foot) wide and may persist until the flowering stage. The leaves are serrated and lined with hairs. The inflorescence contains sometimes as many as 100 flower heads, each head containing 4-8 yellow ray florets surrounding 10-18 disc florets. The fruits are covered in long hairs.
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The inflorescence is a wide array of several flower heads. Each head contains up to 20 disc florets with bright green tubes and whitish or pinkish corollas and pinkish anthers. The fruit is a ribbed cypsela with a pappus of many white or purple-tipped bristles. The plant occurs on the Gulf Coastal Plain in sandy, swampy habitat.
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Phytologia 68(4): 316 distribution map on page 316 Grindelia sublanuginosa is a branching herb up to tall. Leaves are olive-green, up to long, with small teeth along the edges. Flower heads contain 8-21 yellow or yellow-orange ray flowers surrounding numerous small disc flowers. The achenes are distinctive in the genus in being tetragonal.
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The plant usually produces numerous flower heads in crowded, flat-topped arrays. Each head has 18-25 ray flowers, surrounding a large number of tiny disc flowers.Flora of North America, Grindelia howellii Steyermark, 1930Steyermark, Julian Alfred. 1934. Annals of the Missouri Botanical Garden 21(3): 549-550 diagnosis in Latin, description and commentary in English)Steyermark, Julian Alfred. 1934.
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The flower-heads have a cylindrical to almost spherical shape with bright yellow flowers. The seed pods that form after flowering have a linear shape and a length of up to and a width of around . The pods contain hard, dark brown to black coloured seeds with an ellipsoidal shape that is around in length and wide.
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The fruit is an oval or almost globe-shaped nut. Most species have very limited ecological ranges and distribution areas, and many are rare or endangered. The often attractive, large flower heads and evergreen foliage, the straight stems, combined with long flowering period makes that Leucospermum species and their hybrids are bred as garden ornamental and cut flower.
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In spite of its common name, this plant is in fact unrelated to Dahlia, and is part of the legume family. This multi-branching, re-sprouting, flowering shrub reaches about 1 metre in height. The flowers ("nodding heads") appear from autumn until summer. The flower heads each comprise over 15 individual flowers and are orange-yellow in colour.
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The head is lined with spiny, purple-tipped phyllaries which curve outward. The head contains many red, purplish, or rose pink flowers, each up to 4.5 centimeters long. The fruit is an achene with a brown body 6 or 7 millimeters long topped with a pappus which may be 4 centimeters in length. The flower heads attract hummingbirds.
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It has racemose inflorescences with spherical flower-heads that conatin 7 to 12 golden coloured flowers. Following flowering it produces chartaceous and glabrous seed pods that have a narrowly oblong to linear shape with a length of around and a width of . The dark brown seeds inside have an elliptic shape and a length of about .
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When it blooms it produces racemose inflorescences with small spherical flower-heads that contain 15 to 25 pale yellow flowers. After flowering thinly coriaceous seed pods that are dark or reddish brown in colour. The pods have straight edges but can be slightly constricted between the seeds. They are to around in lengtha dn wide and slightly shiny.
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The phyllodes are straight to slightly curved with a length of and a width of , they have a prominent midvein. The shrub blooms between September and October. It produces simple inflorescences that occur singly or in pairs in the axils. The spherical flower-heads have a diameter of and contain 28 to 55 bright yellow flowers.
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The spherical flower-heads contain 25 to 30 bright golden flowers. After flowering thinly coriaceous, velvety seed pods form that are variably constricted between the seeds and have a length of up to around and a width of .. The dull black seeds within are arranged obliquely to transversely and have an elliptic shape with a length of around .
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In G. Davidse, M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera (eds.) Flora Mesoamericana. Universidad Nacional Autónoma de México, México D.F.. where it has escaped from gardens to become a noxious weed.Norlindh, Nils Tycho 1965. Botaniska Notiser 118(4): 406–411 Arctotis venusta is grown as a ground cover because of its silvery foliage and showy flower heads.
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It consists of several flower heads in the axils of pinkish orange leaves that form a hood shielding the underlying flower head. Each flower head contains eight to thirteen individual flowers, with bright red styles and grey silky perianth lobes. It is endemic to the Fynbos ecoregion of South Africa, being confined to the Kogelberg mountain range.
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The glabrous phyllodes have a slightly recurved tapered point and resinous nerve at the apex of each of the four angles. It blooms from August to October producing yellow flowers. The simple inflorescences are found on stalks that are in length. The obloid to short-cylindrical flower-heads are in length and packed with golden flowers.
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The plant's texture is thick and leathery. The many branches, which are silky and covered with a short down, form a dense tuft. The typical flower heads are radiated, that is to say formed of peripheral florets, female, zygomorphous, with ligules and central florets actinomorphous, tubulated, bisexual. The external bracts are herbaceous, with a narrow scariety margin.
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Eryngium pinnatisectum is an erect perennial herb growing up to tall. It has a thick, hairless pale green branching stem.Jepson eFlora The greenish-white leaves are long and very narrow, lance-shaped with several sharp lobes, reaching 30 centimeters long. The inflorescence is an array of spherical flower heads, each surrounded by sharp-pointed, narrow bracts with thickened edges.
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Underside of S. praealtum leaf, showing reticulate venation Symphyotrichum praealtum is a perennial, herbaceous plant with long rhizomes. The thick, firm leaves have conspicuous reticulate venation below. Flowering occurs from August to November, by which time the lower leaves are often withered. The dense arrays of flower heads are present on the upper, branched portion of the stem.
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Leaves are up to long, with no or only a few hairs on the upper surface and more dense hairs on the underside. One stalk can produce 1–10 flower heads in a flat-topped array. Each head has 30–50 yellow ray flowers but no disc flowers.Flora of North America, Hieracium robinsonii (Zahn) Fernald, 1943.
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Cota is a genus belonging to the chamomile tribe within the sunflower family. It is native to Europe, North Africa, and southwestern Asia, with a few species naturalized elsewhere. It is an herbaceous plant with flower heads including white or yellow ray florets and yellow disc florets.Flora of North America, Cota J. Gay ex Gussone, Fl. Sicul. Syn.
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The flower heads are composed of strap-shaped ray flowers, growing longer toward the outer portion of the head, and collectively creating the appearance of a single flower as in other sunflower family plants. The outer flowers in the head extend well beyond the 1/2" to 1" long phyllaries (bracts enclosing the flower head before opening).
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Like Hecastocleis, some other Asteraceae also have flower heads consisting of a single floret, such as Gundelia, a perennial herbaceous plant from the Middle-East, and Gymnarrhena a winter annual from northern Africa and the Middle-East. Both have male flowers and female flowers, not hermaphrodite as in Hecastocleis, while Gymnarrhena has (trimerous or) tetramerous male florets, not pentamerous.
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They are usually opposite but are sometimes arranged alternately. The flower heads are solitary or paired, or occasionally in arrays of several. They are just a few millimeters wide and usually contain 3 or 4 white, pink, or purple funnel-shaped disc florets, sometimes more. The hairy, ribbed cypsela is tipped with a pappus of long scales.
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The flower heads are arranged in clusters (panicles). Each flower head has 13 to 23 ray florets with pale to dark blue or purple petals (laminae), and 19 to 33 disc florets that start out yellow and eventually turn purplish-red. The whole flowerhead measures across. The seeds are achenes with bristles at their tips (cypselae).
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It is hairless and glandular, its surface resinous and shiny. The leaves are lance-shaped with sharply toothed edges, the largest near the base of the stem reaching in length. Smaller leaves up to long occur higher on the stem. The inflorescence is a narrow spikelike array of many flower heads lined with thick, overlapping, gland-dotted phyllaries.
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Hawksbeard flower heads and ripe seeds are sometimes confused with dandelions. A Taraxacum officinale seedhead with only one seed still attached Many similar plants in the family Asteraceae with yellow flowers are sometimes known as false dandelions. Dandelion flowers are very similar to those of cat's ears (Hypochaeris). Both plants carry similar flowers, which form into windborne seeds.
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The older outer leaves freeze while the younger inner meristematic buds remain above the freezing point. Flowers: A reproductive rosette produces a single terminal flower stalk as much as tall. Flower clusters are loosely branched below and gradually simpler toward the end to tall, in diameter; with flower heads that bend downwards. Ray florets absent; 80–140 disc florets.
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The herbage is coated in soft hairs. The inflorescence bears many flower heads. Each head has narrow, pointed, hairy phyllaries, a large dense center of many yellow disc florets, and a short fringe of many rectangular yellow ray florets, which are only about 2 millimeters long each. The fruit is an achene tipped with a pappus of bristles.
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The long, slender stems and foliage are covered in rough hairs. The inflorescence bears flower heads with an array of short, hairy phyllaries behind a thick center of yellow to red-brown disc florets. The golden ray florets around the edge are one to three centimeters (0.4-1.2 inches) long.Flora of North America, Helianthus gracilentus A. Gray, 1876.
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Cirsium neomexicanum is a tall plant, routinely exceeding in height. It erects a stem which may have webby fibers and long, stiff spines. The sparse leaves are greenish-gray, hairy, and very spiny. Atop the mainly naked stems are inflorescences of one or more large flower heads with rounded bases and phyllaries covered in long, curving spines.
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Tumble thistles are assigned to the Cichorieae-tribe that shares anastomosing latex canals in both root, stem and leaves, and has flower heads only consisting of one type of floret. In Warionia and Gundelia these are exclusively disk florets, while all other Cichorieae only have ligulate florets. Gundelia is unique in the complex morphology of the inflorescences.
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Atop the stems are solitary flower heads which are ligulate, containing layered rings of ray florets with no disc florets. The florets are yellow with toothed tips. The fruit is a cylindrical achene with a pappus of scales. Fruits near the center of the flower head are rough, while those growing along the edges of the head are smooth.
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Stanford University Press, Stanford. Erigeron oxyphyllus is a branching perennial herb up to 25 centimeters (10 inches) tall, producing a woody taproot. The leaves and the stem are covered with hairs. The plant generally produces 1-3 flower heads per stem, each head with 12–45 white, blue, or lavender ray florets surrounding numerous yellow disc florets.
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Greene) E. Greene, Elmer's erigeron Erigeron elmeri is a perennial herb up to 20 centimeters (8 inches) in height. It produces 1-3 flower heads per stem, each head as many as 21 white ray florets surrounding numerous yellow disc florets.Flora of North America, Erigeron elmeri (Greene) Greene, Fl. Francisc. 393. 1897. Elmer’s fleabane Greene, Edward Lee 1891.
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The plant generally produces only 1 flower heads per stem, each head with black hairs covering the phyllaries (bracts) covering the base of the head (hence the name black-headed fleabane). Each head also has up to 74 white or purple ray florets surrounding numerous yellow disc florets.Flora of North America, Erigeron melanocephalus (A. Nelson) A. Nelson, 1899.
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Erigeron aurantiacus is an Asian species of flowering plants in the daisy family. It is native to Kazakhstan and Xinjiang in central Asia.Tropicos, Erigeron aurantiacus Regel Erigeron aurantiacus is a perennial, clump-forming herb up to 35 cm (14 inches) tall. Its flower heads have orange, yellow, or deep red ray florets and yellow disc florets.
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Biota of North America Program 2014 county distribution map Erigeron velutipes grows in moist locations near springs. It is an annual herb up to 20 centimeters (8 inches) tall, producing a taproot. The inflorescence is made up of 1-3 flower heads per stem. Each head contains 50–75; white or blue ray florets surrounding numerous yellow disc florets.
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Erigeron purpurascens is a Chinese species of flowering plants in the daisy family. It grows on mountainsides in the province of Sichuan in southwestern China. Erigeron purpurascens is a tiny, clump-forming perennial herb rarely more than 7 cm (2.8 inches) tall, forming a woody rhizomes. Its flower heads have purple ray florets surrounding yellow disc florets.
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Erigeron schmalhausenii is an Asian species of flowering plants in the daisy family. It grows on mountains and glacial moraines in Xinjiang, Kazakhstan, Uzbekistan, and Siberia. Erigeron schmalhausenii is a perennial, clumping- forming herb up to 45 cm (18 inches) tall, forming a thick woody rhizomes. Its flower heads have pink or lilac ray florets surrounding yellow disc florets.
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Erigeron barbarensis is a rare Mexican species of flowering plants in the daisy family. It grows in southern Sonora and southwestern Chihuahua. Erigeron barbarensis is an annual herb up to 55 cm (22 inches) tall, producing a slender taproot. Each plant produces 3-8 flower heads per stem, with 32-48 white ray florets surrounding yellow disc florets.
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Erigeron morrisonensis is an Asian species of flowering plants in the daisy family. It grows in grasslands, rocky slopes, and coniferous forest in Taiwan. Erigeron morrisonensis is a perennial, clump-forming herb up to 20 cm (8 inches) tall, forming a shortunderground rhizomes. Its flower heads have lilac or pale purple ray florets surrounding yellow disc florets.
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It has woolly green herbage. The leaves are lined with triangular lobes and the lowest leaves approach 40 centimeters (16 inches) long. The inflorescence is an open array of many ligulate flower heads, each with woolly phyllaries and several yellow ray florets but no disc florets. The fruit is a narrow, ribbed achene just under a centimeter long.
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Coreopsis verticillata is an herbaceous perennial that grows tall and about wide, although as it spreads laterally by rhizomes, this width can be exceeded. The stems are wiry. The flower heads are up to across, and both the disc florets and ray florets are bright yellow. The flowers are produced abundantly in clusters from midsummer to fall.
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The narrow grey-green foliage resembles that of a related genus Ageratum, hence the Latin specific epithet ageratifolia. The solitary, daisy-like composite flower heads are white with yellow centres. In cultivation in the UK, this plant has received the Royal Horticultural Society’s Award of Garden Merit. A hardy, adaptable plant, it prefers a sunny open position.
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The alternately arranged leaves persist for only a short time and then fall away. Large colonies of these bare stems proliferate from a robust rhizomes. The stems usually reach a maximum height around 1.5 meters, but can well exceed 2 meters at times. They bear loose arrays of many flower heads each roughly half a centimeter long and wide.
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The inflorescence appear in leaf axils with a barely discernible stalk. Each flower having a stalk long, covered in long soft white hairs. The bracts surrounding the flower heads are egg-shaped, very concave with flat longish hairs up to long. Each inflorescence has 20-26 unscented creamy-white flowers turning a deep pink with age.
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The simple inflorescences have spherical flower-heads with a diameter of with 20 to 32 densely packed white to cream coloured flowers. The seed pods that form after flowering have constrictions between the seeds and are raised over them. The pods can have one to two twisted coilsand typically have a length of around and a width of .
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It blooms from July to September and produces yellow flowers. The inflorescences occur singly or in pairs along an axes of . The flower-heads have a slightly obloid shape and contain 18 to 34 golden flowers. The seed pods that form after flowering resemble a string of beads and have a length of and a width of .
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This herbaceous perennial bears mostly unbranched stems reaching up to 170 cm tall. The leaves are variable in shape and size. Those near the base have oval blades borne on petioles and those higher on the plant have shorter, narrower blades. The flower heads are solitary atop the stems and have arrays of small leaves around the bases.
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2nd ed. 1989. The product of the teasing process is called teased wool. It differs from the wild type in having stouter, somewhat recurved spines on the seed heads. The dried flower heads were attached to spindles, wheels, or cylinders, sometimes called teasel frames, to raise the nap on fabrics (that is, to tease the fibres).
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The phyllodes are in length and wide with a prominent midvein and obscure or faint lateral nerves. It blooms between April and October producing bright yellow flowers. The inflorescences are found in groups to 5 to 15 in axillary raceme with spherical flower-heads that have a diameter of and contain 15 to 30 bright yellow flowers.
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Hot temperatures may quicken bolting. The seed is harvested by cutting the flower heads off the stalks when the seed is beginning to ripen. The seed heads are placed upside down in a paper bag and left in a warm, dry place for a week. The seeds then separate from the stems easily for storage in an airtight container.
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E. psammogeton is a smooth, mat-forming, perennial herb, often with a woody rootstock. It has articulated, prostrate stems, growing to 35 cm or more. Its oblong to broadly elliptic leaves are 1–3 cm long and 0.5–1.5 cm wide, and asymmetric at the base. The tiny flower-heads are surrounded by white leaf-like bracts.
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The inflorescences appear on three to seven headed racemes, the showy spherical flower heads contain 10 to 24 light golden flowers. After flowering curved seed pods form that are rounded over seeds and have a length of around and a width of long. The shiny balck seeds within have an oblong-elliptic to ovate shape and are in length.
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The leaves are narrow. The underside of the leaves, petioles and new growth are covered in fine white hairs. Plants produce typical daisy-type flower heads, with the central flowers being primarily yellow, surrounded by white ligules. On cursory inspection this appears to be a flower 10–20 mm across, with a yellow centre and white petals.
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8: 213. 1874. The inflorescence holds one to several daisylike flower heads, which nod as buds and then pull erect when the face opens. Each head has a center filled with yellow disc florets and usually several yellow ray florets around the edge. The fruit is a cylindrical achene about half a centimeter long with a bristly pappus.
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The racemose inflorescences occur in groups of two to four and have spherical flower-heads containing 25 to 30 bright golden flowers. The smooth red to dark brown seed pods that form after flowering resemble a string of beads with a length of and a width of . The dull brown seeds within are spherical with a length of .
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The female lays eggs on the flower heads at an early stage of development and stem tips. Upon emergence the larva burrows into the flower head or makes its way there by tunneling through the stem. It feeds upon the developing seeds, often consuming them entirely. If any other insects invade the flower head, the larva attacks them.
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The leaves are mostly located in a basal rosette, the largest reaching 10 centimeters long. Smaller, linear leaves occur along the upper stem. Flower heads occur singly or in small clusters along the stiff branches. Each head contains 4 to 6 ray florets, each with an elongated tube and a pinkish or lavender ligule up to 1.4 centimeters long.
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The inflorescence generally consists of 2 or 3 flower heads per stem, each head with sometimes as many as 40 small yellow disc florets and surrounded by a ring of up to 40 white or blue ray florets.Flora of North America, Erigeron allocotus S. F. Blake, J. Wash. Acad. Sci. 27: 379. 1937. Bighorn fleabane Blake, Sydney Fay 1937.
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The striated thornbill is predominantly insectivorous, generally forages in the canopy of eucalypt trees, gleaning leaves for prey. It often hangs upside-down while foraging. The striated thornbill also visits and feeds on extra-floral nectaries on the leaves of sunshine wattle (Acacia terminalis), helping pollinate the plant as it brushes against flower heads while feeding.
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Arida arizonica is an annual herb with a branching stem reaching up to 30 centimeters (12 inches) tall. The oblong leaves are up to 3 centimeters long, edged with bristly teeth, and sometimes divided into lobes. The herbage is coated with glandular rough hairs. The inflorescence bears one or more flower heads lined with glandular phyllaries.
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Placochilus seladonicus is a univoltine species. Adults can be found from mid June to mid August. Eggs overwinter. Nymphs and adults feed on leaves and stems of various plants, especially on flower heads or flower budsDr K N A Alexander - A review of the invertebrates associated with lowland calcareous grassland - English Nature Research Report - Report Number 512, pg.
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It blooms from July to December and produces yellow flowers. The simple inflorescences occur singly or in pairs in the axils. The spherical to widely ellipsoid shaped flower-heads contain 22 to 32 densely packed golden flowers and are around in length with a diameter of . The linear, curved, dark brown seed pods with yellow margins form after flowering.
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Erigeron kuschei is a rhizomatous perennial herb produces hairy stems a few centimeters tall. The leaves are spatula-shaped to lance-shaped and up to long near the base of the plant. The flower heads are lined with hairy, glandular phyllaries and contain many white ray florets each up to long surrounding numerous yellow disc florets.Erigeron kuschei.
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Female plants bearing slightly larger flower heads containing pistillate flowers, and male plants producing staminate flowers. The fruit is an achene up to a centimeter long, most of which is a long pappus attached to a small hard body.Flora of North America Vol. 19, 20 and 21 Page 408 Evergreen or everlasting pussytoes Antennaria suffrutescens GreeneGreene, Edward Lee 1898.
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The spreading viscid shrub or tree typically grows to a height of and to a width of around . It blooms from September to November and produces yellow flowers. The obliquely widely elliptic to elliptic phyllodes are long and wide. The simple inflorescences have globular flower heads with a diameter of containing 54 to 60 golden flowers.
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Cronquist, Arthur John 1943. Bulletin of the Torrey Botanical Club 70(6): 632 Conyza ramosissima is a much-branching annual herb sometimes growing to a height of 25 cm (10 inches) or more. Its leaves are small and thread-like. It has numerous small flower heads, each with white or lavender ray florets and yellow disc florets.
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Baccharis salicina is a shrub producing erect, branching stems approaching 4 metres (13 ft) in maximum height. The thick leaves are oblong to oval in shape and sometimes have roughly toothed edges. They may be up to 7 centimetres (2.8 in) long. The shrub is dioecious, with male and female plants producing flower heads of different types.
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According to Meissner in 1856 it is most similar to Protea grandiceps, especially in leaf-form, but with a smaller flower head. P. foliosa, which occurs further to the east, also has terminal flower heads which are somewhat wrapped by the surrounding and subtending leaves and bracts, but in this species the heads are bourne low to the ground.
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It is hairless to hairy and glandular. The leaves have lance-shaped or oblong blades up to 20 centimeters long. They are glandular and have a waxy exudate that dries white. The inflorescence is usually a cluster of 2 to 4 flower heads, each with up to 10 yellow ray florets which may be up to 3 centimeters long.
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The phyllodes are in length and less than wide and also covered in fine downy hairs with a single obscure impressed nerve on upper the upper surface. It usually blooms between May and August producing yellow flowers. The spherical flower-heads contain 25 to 40 yellow coloured flowers. After flowering sticky and leathery seed pods form.
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The leaves are long with lobed or pinnately- divided edges. The abaxial surface (underside) of the leaf is somewhat hairy. At the top of each branch of the stem is an inflorescence of one to several flower heads, each rounded, covered in spiny phyllaries, and bearing many threadlike, purple or pink disc florets. Each flowerhead is around across.
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Black medick has small (2–3 mm) yellow flowers grouped in tight bunches (compact racemes). On larger plants the flower heads may reach or more. The fruit is a single-seeded pod, 1.5 to 3 mm in diameter, that does not open upon maturation, but hardens and turns black when ripe. Each pod contains a single amber-colored seed.
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D. Keck) B.G. Baldw., Kern tarweed Deinandra pallida is an annual herb up to 100 cm (40 inches) tall. It produces numerous flower heads in showy arrays, each head with 7-12 yellow ray florets and as many as 21 disc florets with yellow corollas and yellow or brown anthers.Flora of North America, Deinandra pallida (D.
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Scraggy bloodwood was first formally described in 1934 by William Blakely and Maxwell Jacobs and given the name Eucalyptus abbreviata, in Blakely's book A Key to the Eucalypts. In 1995, Ken Hill and Lawrie Johnson changed the name to Corymbia abbreviata. The specific epithet (abbreviata) is from the Latin word abbreviatus meaning "shortened" referring to the flower heads.
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The Drosera peruensis plant begins to blossom during the fall season, around October. Flower heads, 10 to 18 centimeters long, can grow two to four flowers which feature red, thread-like trichomes. The inflorescence axis is 3.5 to 6 centimeters long, attached to a reddish pedicel. Its sepals are also light red in color and are fused together.
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The plant produces cylindrical flower heads just a few millimeters wide, containing usually 3-4 bright yellow disc flowers. The phyllaries (green bracts surrounding the flower head) are concave. The disc florets have ray-like lobes, but there are no true ray flowers. The fruit is an achene about half a centimeter long including a short pappus.
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Hulsea mexicana is an annuals or biennial herb sometimes reaching in height. Most of the leaves are on the stem rather than clustered around the base. One plant will generally produce 3–5 flower heads, each with 20–35 ray flowers surrounding a large number of tiny disc flowers.Flora of North America, Hulsea mexicana Rydberg 1914.
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A study by Hammer et al. (2019) determined that specimens previously identified as P. macrocephalus are morphologically and ecologically distinct species, the now named Ptilotus xerophilus T.Hammer & R.W.Davis (arid central and western Australia) and Ptilotus psilorhachis T.Hammer & R.W.Davis (eastern Queensland). P. macrocephalus has cream-green coloured ovoid flower heads. As with other green-flowered Ptilotus species (e.g.
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Biota of North America Program 2014 county distribution map Hypochaeris chillensis is a perennial herb growing a taproot, a basal rosette of leaves, and one or more thin stems tall. The leaves are long, entire or lobed, and green. Atop the thin, naked stems are flower heads with small golden yellow ray florets, typically in diameter.
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A systematic account of the family Asteraceae (chapter 11: tribe Helenieae). Phytologia Memoirs 16: 1–100SEINet Southwestern Biodiversity, Arizona chapter description, photos, distribution map Tetraneuris linearifolia is an annual herb up to tall. It forms a branching underground caudex sometimes producing as many as 10 above-ground stems. One plant can produce as many as 80 flower heads.
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Systematic Botany (1981) 6(3): pp. 258-287 descriptions, line drawings, distribution maps for all 5 species Isocarpha fistulosa is an annual herb up to 70 cm (28 inches) tall. Leaves are up to 4 cm (1.6 inches) long. One plant produces several flower heads, each head with 120-150 white disc flowers but no ray flowers.
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Rudbeckia texana is a robust perennial growing up to 150 cm (59 in) tall by 30 cm (12 in) wide. It has alternate, mostly basal leaves 9–20 cm long. The leaves have a leathery texture and are elliptic in shape. Flowering stems appear in the spring, each stem terminating with between 1 and 4 composite flower heads.
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It produces numerous flower heads in a branching array at the ends of the stems, each head with about 20 white disc flowers per head but no ray flowers.King, Robert Merrill & Robinson, Harold Ernest. 1986. Phytologia 60: 81-82 description in Latin, commentary in English The species is threatened by habitat loss.Montúfar, R. & Pitman, N. 2003.
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Doronicum grandiflorum is a European species of Doronicum, a member of the aster family. Doronicum grandiflorum is a perennial herb growing 10–40 cm. (4-16 inches) tall and producing numerous yellow flower heads borne singly on hairy stalks. The large, ovate (egg-shaped) ground-leaves have toothed edges and are supported by long, narrow petioles.
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The flower heads are 3½ cm (1.4 in) long and consist of three to six flowers, and are subtended by an ordinary green leaf. The outer whorl of bracts that encircle the flower heads are green and leafy in texture, line- to lance-shaped, 1½–2 cm (0.6–0.8 in) long and 2–4 mm (0.08–0.16 in) wide. The bracts on the inside of the head are papery in consistency and carry some silky hairs on the outer surface, are narrowly lance-shaped to elliptic lance-shaped with a sharply pointed tip, 2–3 cm (0.8–1.2 in) long and 4–10 mm (0.16–0.40 in) wide. The bract that subtends the individual flower is line-shaped or narrowly lance-shaped, about 1 cm (0.4 in) long and covered in dense silky hairs.
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These leaves have an entire margin or have three teeth near their tips. The bracts that encircle the flower heads are unequal in size, clasp the base of the flowers tidly, fringed by a rim of silky hairs, and together form a two-lipped involucre. The bracts below the attachment of the flowers are ellipse-shaped with a pointy tip, larger, 1½–3 cm (0.6–1.2 in) long and 3–12 mm (0.12–0.48 in) wide. The bract above the attachment of the flower heads are smaller, lance-shaped with a pointy tip, 8–10 mm (0.32–0.40 in) long and 1½–3 mm (0.06–0.12 in) wide. The bract subtending the individual flower is linear with a pointy tip to awl-shaped and 6–10 mm (0.24–0.40 in) long.
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The 'Cumberland Plain form' grows on heavier Cumberland Plain soils in Sydney's northwest around Richmond and Blacktown. It is a shrub to 30 cm (12 in) high with small round leaves and sessile flower heads. It has a lignotuber, from which it resprouts after fire. The 'large- leaved form' is found from Botany Bay and the Georges River south to Mittagong.
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It has oppositely arranged leaves with thin oval or somewhat triangular blades up to 8 centimeters long by 9 wide. The inflorescence is a cluster of flower heads containing white disc florets and no ray florets. This plant grows in rockhouses, sandy spaces under overhangs of sandstone rock. It grows in moist places where water drips off the rock above.
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This is a small annual herb with a trailing or somewhat upright stem coated thinly in woolly fibers. The leaves are up to about 4 centimeters long and have wavy edges. The inflorescences at the end of stem branches bear small hemispheric flower heads. Each head is wrapped in phyllaries with black glandular hairs and has a center of glandular yellow disc florets.
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The stem is slender, branching, and sparsely to densely prickly, growing to a length of . The leaves are bipinnately compound, with one or two pinnae pairs, and 10–26 leaflets per pinna. The petioles are also prickly. Pedunculate (stalked) pale pink or purple flower heads arise from the leaf axils in mid summer with more and more flowers as the plant gets older.
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Melaleuca campanae is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a small, woody shrub similar to Melaleuca eulobata, with a low, spreading habit and pinkish flower heads but it has longer, pointed leaves and lacks distinct sepals which instead form a ring of tissue around the edge of the flowers.
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It is the only United Kingdom dandelion type flower with grass like leaves. The flower heads are 5 cm wide. They only open in the morning sunshine, hence the name 'Jack go to bed at noon'. The achenes are rough, long beaked pappus radiating outwards interwoven like a spider's web of fine white side hairs (referred to as a "Blowball").
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It is an annual herb producing a single, erect, branching stem which grows to a maximum height around 60 centimeters. The leaves have blades up to about 8 centimeters long which are deeply cut or divided into several toothed lobes. The herbage is somewhat hairy and glandular, sticky to the touch. The inflorescence bears flower heads lined with black-tipped phyllaries.
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Senecio astephanus is a species of flowering plant in the aster family known by the common name San Gabriel ragwort. It is endemic to California, where it is known only from the rocky slopes of the Transverse Ranges and adjacent Coast Ranges. It is a perennial herb growing up to a meter tall and producing discoid flower heads containing golden yellow florets.
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The inflorescence contains several flower heads, each lined with hairy green phyllaries. The head contains many golden yellow disc florets and generally either 8 or 13 yellow ray florets each up to a centimeter long. The fruit is an achene with a body about a millimeter long tipped with a pappus of 3 or 4 millimeters. The bloom period is May to July.
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Acacia moirii, commonly known as Moir's wattle, is a subshrub which is endemic to the south-west of Western Australia. It grows to between 0.15 and 0.6 metres high and has densely hairy leaflets. The globular golden-yellow flower heads appear from May to August, followed by hairy seed pods which are around 4 cm long and 5 to 6 mm wide.
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The plant reaches heights of ten centimeters to one meter. The leaves have thin, oblong or oval blades a few centimeters long borne on long petioles. Smaller, more intricately divided leaves may occur farther up the stem. The inflorescence is an umbel-shaped array of up to 20 or more flower heads, each lined with green- or red-tipped phyllaries.
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The leaves are up to 10 centimeters long and are made up of many narrow, lacy lobes. The plant is slightly to densely woolly in texture. The inflorescence contains several flower heads, each lined with green- or yellow-tipped phyllaries. The head contains many golden yellow disc florets and generally either 8 or 13 yellow ray florets each just over a centimeter long.
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Protea aristata apical inflorescences. The flower heads are large for a Protea species, and shaped like an inverted cone (obconic), to bell-shaped when fully opened. It is in length and wide. The involucral bracts are arranged in 7 to 9 series, with the outer series very broad and egg-shaped to almost rounded, nude, 10 - 15mm long, 10mm wide.
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The herbage is slightly hairy to woolly or cobwebby. The inflorescence bears several flower heads in a cluster, the middle, terminal head often largest and held on a shorter peduncle, making the cluster look flat. The heads contain many disc florets and usually 8 or 13 ray florets which may be yellow to cream to white in color. Some heads lack ray florets.
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A leafy herb, the garland chrysanthemum is an annual plant. It has yellow ray florets grouped in small flower heads and aromatic, bipinnately lobed leaves.Flora of North America, Glebionis coronaria (Linnaeus) Cassini ex Spach, 1841. Crown daisy, garland chrysanthemum The vegetable grows very well in mild or slightly cold climates, but will go quickly into premature flowering in warm summer conditions.
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Lasthenia chrysantha is an annual herb approaching a maximum height near 28 centimeters. The stem may be branched or not and it bears mostly hairless, linear leaves up to 7 or 8 centimeters long. Atop the hairy to hairless stems are inflorescences of flower heads with hairless phyllaries. The head contains many yellow disc florets with a fringe of small yellow ray florets.
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Sorocephalus is a genus containing 11 species of flowering plants, commonly known as powderpuffs, in the family Proteaceae. The name means “heaped head”. The genus is endemic to the Cape Floristic Region of South Africa, more particularly the winter rainfall zone of the southwestern Cape. The species are all small shrubs characterised by flower-heads containing clusters of four or more flowers.
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19: 522. 1906. 柄叶飞蓬 bing ye fei peng Erigeron petiolaris a perennial herb up to 28 cm tall, with a short rhizome. It produces flower heads one at a time or in groups of 2 or 3, each head containing pink or white ray florets and yellow disc florets. The species grows in arctic or alpine regions on rocky slopes.
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Pachystachys is a genus of 12 species of flowering plants in the family Acanthaceae, native to rainforest in the Caribbean and Central and South America. They are evergreen perennials and shrubs bearing prominent terminal spikes of flowers with brightly coloured bracts. The name Pachystachys comes from the Greek for "thick spike", referring to the flower heads. The genus is closely related to Justicia.
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Euthamia graminifolia is a herbaceous plant on thin, branching stems. Leaves are alternate, simple, long and narrow much like grass leaves (hence the name of the species). One plant can produce many small, yellow flower heads flat-topped arrays sometimes as much as 30 cm (1 foot) across. Each head has 7-35 ray florets surrounding 3-13 disc florets.
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Erechtites hieraciifolius is an annual herb with alternate, simple leaves, on thick, green stems. The leaves are serrated, and range from unlobed to deeply lobed, with the lobe pattern superficially resembling wild lettuces, which are in the same family but not closely related. When crushed, all parts of the species smell unpleasant. The flower heads are yellow or pink, borne in fall.
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The garden zinnia was bred via hybridisation from the wild form. Zinnias are popular garden plants with hundreds of cultivars in many flower colours, sizes and forms. There are giant forms with flower heads up to 6 in (15 cm) in diameter. Flower colours range from white and cream to pinks, reds, and purples, to green, yellow, apricot, orange, salmon, and bronze.
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The smooth flower bracts are arranged in two rows, lance or elliptic shape, long, wide with prominent glandular purple edges. The ligules about long, white on upper side occasionally mauve underneath. The white or pale blue flower heads are in diameter, the peduncle long, broad, smooth and the centre yellow. The brown one-seeded fruit are flattened lengthwise, egg-shaped, long and wide.
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Leaves are thread-shaped and terete (round in cross-section, very gradually tapering; the epithet teretifolia means "with terete leaves"). One plant can produce many small yellow flower heads each with 5-7 disc florets but no ray florets. The plant grows in desert regions, in flat plains, rocky slopes, and canyon walls.Flora of North America, Ericameria teretifolia (Durand & Hilgard) Jepson, Man.
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Erigeron kachinensis grows from a taproot and branching caudex and has stems up to 18 centimeters (7.2 inches) in length. The leaves at the base of the plant are up to 5 centimeters (2 iniches) long, with smaller ones along the stem. They are hairless and non-glandular. The flower heads have phyllaries which are often purplish and are hairless.
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The inflorescence is a cluster of several flower heads, each a bullet-shaped body covered in purple or purple-tinged green phyllaries. The head opens at the tip to bloom with several white to purple tubular disc florets; there are no ray florets. The fruit is an achene tipped with a pappus, the whole unit sometimes exceeding a centimeter in length.
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Contarinia nasturtii, the swede midge, is a small fly, the larvae of which infest brassica plants, causing twisting and distortion of the leaf stems and foliage including death of the growing point in seedlings, or damage to developing flower heads. It is native to Europe and Turkey, and has been introduced into North America where it is regarded as an invasive species.
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Jacobaea aquatica or Senecio aquaticus, the water ragwort or marsh ragwort, is a plant of the family Asteraceae. It is a perennial or biennial plant: young plants form a rosette near the ground, eventually producing a taller flowering shoot with many bright yellow flower heads, each with prominent ray florets. It grows in damp, grazed grassland, especially where there has been some disturbance.
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Arnica viscosa is a perennial herb usually producing one or more hairy, glandular stems 20 to 50 centimeters tall. There are five to ten pairs of oblong leaves along the stem each a few centimeters long.Gray, Asa 1878. Proceedings of the American Academy of Arts and Sciences 13: 374 The inflorescence bears many flower heads lined with hairy, glandular phyllaries.
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Felicia clavipilosa is an upright, richly branched shrub of up to high, that is assigned to the daisy family. It has alternately arranged leaves, and flower heads with 3–4 whorls of involucral bracts with many yellow disc florets in the centre. Very characteristic for the species are the short club- shaped hairs on its fruits. There are two subspecies. Subsp.
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The obverse of the leaves is shiny green, the grayish white lapel. Like all compounds, gazania flowers in flower heads that are often taken for simple flowers. The capitula are solitary at the end of peduncles just beyond the leaves. Each capitulum is formed by a central disc of tubular flowers, surrounded by ligulate peripheral flowers, whose color is very variable.
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As in other ragweeds, the inflorescence has staminate (male) and pistillate (female) flower heads. The pistillate heads yield one or two fruits which are burrs up to half a centimeter long and covered in short spines.Jepson Manual TreatmentFlora of North America Vol. 21 Page 18 Ambrosia confertiflora de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
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Cauline leaves are tomentose on the underside and contain spines on the lobe tips. Flower heads are 2-5 per cluster, densely matted with cobwebby hairs at the base of the phyllaries and spiny towards the tips. Corollas are pink to purple, approx. .4-.6 in (1-1.4 cm) long, and the fruits are brown to gold, with a bristly, minutely barbed pappus.
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The bracts are greenish- white, sometimes with pinkish tones. The small sepals are similar in colour, only long. The flowers have no petals and five stamens. Thirteen species of Alternanthera are found in the Galápagos Islands, of which six are endemics; A. echinocephala is said to be easy to distinguish based on its relatively large flower heads with their spiny appearance.
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The species is monoecious, and the inflorescence is composed of staminate (male) flower heads with the pistillate heads located below and in the axils of leaves. This bloom period is from June through November. The pistillate heads yield fruits which are achenes located within oval-shaped greenish-brown burs about half a centimeter long. The burs are hairy and sometimes spiny.
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The leaves are made up of several lance-shaped leaflets each up to 8 centimeters long. The inflorescence produces several small flower heads with centers of yellow disc florets and a fringe of 3 to 5 yellow ray florets a few millimeters in length. Some heads lack ray florets. The fruit is a flattened achene with two sharp barbs at one end.
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The simple inflorescences appear in the axil nodes as single spherical flower-heads containing around 30 bright golden flowers. The seed pods that form after flowering have a narrowly oblong shape and have a length of up to about and a width of . The dark brown to black seeds within have an oblong to elliptic shape with a length of .
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Anaphalis triplinervis is an Asian species of flowering herbaceous perennial plant in the sunflower family, native to the Himalayas (Tibet, Afghanistan, northern India, Nepal, Bhutan).Flora of China Vol. 20-21 Page 814 三脉香青 san mai xiang qing Anaphalis triplinervis (Sims) C. B. Clarke, Compos. Ind. 105. 1876. Grey-green felted leaves produce sprays of small white flower heads.
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Perityle inyoensis is a subshrub made up of a cluster of several hairy slender stems up to about 25 centimeters long. The hairy, glandular leaves are one or two centimeters long, oval to triangular, pointed, and toothed on the edges. They may be arranged oppositely or alternately on the stems. The inflorescence bears one to three flower heads each under a centimeter wide.
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Chaenactis fremontii grows in patches of long stems up to long that are green when new and grow reddish with age. They may branch to extend many tall, almost naked stems. The sparse leaves are somewhat fleshy and long and pointed. Atop each erect stem is an inflorescence bearing usually one but sometimes more flower heads, each with plentiful densely packed disc florets.
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Artemisia orientalixizangensis is a rare Tibetan species of plants in the sunflower family. It is found only in eastern and southeastern Tibet.Flora of China, 昌都蒿 chang du hao, Artemisia orientalixizangensis Y. R. Ling & Humphries Artemisia orientalixizangensis is a perennial herb up to 40 cm (16 inches) tall. Inflorescence is a tall, narrow, spike-like panicle of small flower heads.
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Publications of the Museum of Michigan State University, Biological Series 2: 429–528. Astranthium integrifolium is an annual, usually with an unbranched stem up to 50 cm (20 inches) tall. Flower heads are usually borne one at a time, with white or bluish ray florets and yellow disc florets.Flora of North America, Eastern western-daisy, Astranthium integrifolium (Michaux) Nuttall, Trans. Amer. Philos. Soc.
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A systematic study of the genus Astranthium (Compositae, Astereae). Publications of the Museum of Michigan State University, Biological Series 2: 429–528.Biota of North America Program 2014 county distribution map Astranthium ciliatum is an annual with a taproot, and usually an unbranched stem up to 50 cm (20 inches) tall. Flower heads have white or bluish ray florets and yellow disc florets.
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The leaves are linear in shape and harden as they age, becoming spiny. The larger leaves are woolly and there are clusters of smaller, threadlike leaves which may be hairless. The inflorescence bears two to five flower heads which are each enveloped in five thick phyllaries coated in white woolly hairs. Each head contains five pale yellow flowers each around a centimeter long.
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It is native to the southeastern United States in the states of Mississippi, Alabama, Georgia, and Florida.Biota of North America Program 2014 county distribution map Arnoglossum sulcatum is a large plant growing up to 140 cm (56 inches) tall. Flower heads are small but numerous, usually white or pale green, occasionally slightly purplish. The species grows in wet, shaded areas.
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Balsamorhiza rosea (rosy balsamroot) is a North American species of plants in the sunflower tribe within the aster family. It is native to the northwestern United States, in Washington and Oregon. Balsamorhiza rosea is an herb up to 30 cm (12 inches) tall. It has flower heads, usually borne one at a time, with both ray florets and disc florets.
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The flower-heads have a diameter of and contain 35 to 45 densely packed lemon yellow to golden yellow coloured flowers. The straight to slightly curved pale brown coloured seed pods that form after flowering have a length of up to and a width of and contain black, oblong to ovoid shaped seeds with a length of around and a width of .
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Balduina angustifolia (coastal plain honeycombhead) is a North American species of plants in the sunflower family. It is native to the southeastern United States (Florida, Georgia, Alabama, Mississippi).Biota of North America Program 2014 county distribution map Balduina angustifolia is a perennial herb with branching stems. Each plant has 20 or more flower heads, each with yellow ray florets and yellow disc florets.
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1917SEINet, Southwestern Biodiversity, Arizona Chapter, Bidens leptocephala Sherff description, photos, distribution map Bidens leptocephala is an annual herb up to 50 cm (20 inches) tall. Flower heads are sometimes borne one at a time, sometimes in groups of 2 or 3, each head yellow or white with disc florets and sometimes with ray florets. The species usually grows on streambanks.Sherff, Earl Edward 1917.
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Clusters of woolly leaves grow near the spines. The inflorescence bears up to 7 flower heads which are each enveloped in four or five woolly phyllaries. Each head contains up to four or five tubular yellow flowers each around a centimeter long. The fruit is a hairy achene which may be nearly 2 centimeters long, including its pappus of long bristles.
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Boltonia lautureana is an East Asian species of plants in the sunflower family. It is native to China, Japan, Korea, and Asiatic Russia.Flora of China, 山马兰 shan ma lan, Aster lautureanus (Debeaux) Franchet Boltonia lautureana is a plant up to 100 cm (40 inches) tall. It has many daisy-like flower heads with blue ray florets and yellow disc florets.
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The narrow, pointed leaves are usually no more than a centimeter long and most occur in clusters along the branches. The inflorescence bears up to seven flower heads which are each enveloped in four woolly phyllaries. Each head contains four yellow cream flowers each around a centimeter long. The fruit is a hairy, ribbed achene with a pappus of bristles.
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The thick phyllodes have an oblong-elliptic shape with a length of and a width of have three to five obscure longitudinal veins. The simple and axillary inflorescences occur is pairs or solitary with spherical yellow flower-heads. The dark brown seed pods that form after flowering are curved or twisted pod to a length of around and a width of .
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The Comps of Mexico: A systematic account of the family Asteraceae, vol. 1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272Biota of North America Program 2014 county distribution map Brickellia parvula is a shrub up to 30 cm (12 inches) tall, growing from a woody caudex. It produces many small flower heads with yellow or green disc florets but no ray florets.
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Chaenactis evermannii is a small perennial rarely more than 12 cm (5 inches) tall. Each branch produces 1-3 flower heads each containing disc florets but no ray florets.Flora of North America, Evermann’s pincushion, Chaenactis evermannii Greene Greene, Edward Lee 1912. Leaflets of Botanical Observation and Criticism 2(10): 224 The species is named for American ichthyologist Barton Warren Evermann (1853–1932).
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A systematic account of the family Asteraceae (chapter 11: tribe Helenieae). Phytologia Memoirs 16: 1–100SEINet, Southwestern Biodiversity, Arizona chapter, Helenium laciniatum A.Gray includes distribution map and photos of herbarium specimens Helenium laciniatum is a small perennial herb rarely more than tall. Leaves are pinnately lobed or compound. One plant can produce several flower heads, each on its own long, thin flower stalk.
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A systematic account of the family Asteraceae (chapter 11: tribe Helenieae). Phytologia Memoirs 16: 1–100Biota of North America Program 2014 county distribution map Helenium thurberi is an annual herb up to tall, with small wings running down the sides of the stems. Leaves are lance-shaped. One plant can produce up to 120 flower heads, in a branching array.
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One plant generally produces only 1-3 hemispherical flower heads, about across. Each head can have 800 or more minuscule disc flowers across, each yellow toward the bottom but yellow-brown toward the tip. There are also 13-34 yellow ray flowers, each with three prominent lobes at the tip.Flora of North America, Helenium pinnatifidum (Schweinitz ex Nuttall) Rydberg 1915.
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Flower heads are yellow, appearing one at a time, with both ray florets and disc florets.CONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, México D.F..Flora of North America, Clappia A. Gray in W. H. EmoryBiota of North America Program 2013 county disstribution map The genus is named for Dr. Asahel Clapp, of New Albany, Indiana.
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Phytologia 68(4): 303–332 distribution map on page 308 Grindelia scabra grows in dry rocky slopes and on top of mesas (flat-topped hills). It is an annual, biennial, or perennial herb up to tall. The plant usually produces numerous flower heads in open flat-topped arrays. Each head has 17-30 ray flowers, surrounding a large number of tiny disc flowers.
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They are mostly hairless and a shiny dull green on top and grayish hairy underneath. Flowers are borne in large panicles at the ends of branches and shorter panicles in the leaf axils. The species is dioecious, with flower heads that look like "plump shaving brushes". Male plants have heads with short phyllaries and a single layer of pappus hairs.
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