1000 Sentences With "florets" | Random Sentence Generator

Front Burner This new vegetable has stems like broccoli and florets that are lacier than cauliflower florets.

From there, you'll be able to easily pull the florets apart then use your knife to cut through the stems to create smaller, perfectly-shaped florets.

Keirnan Monaghan and Theo Vamvounakis Chop one head of broccoli into florets.

Ms. Khan chopped them into tiny florets, leaves intact, and roasted them in the oven, planting the florets gently into a bowl of soup she had made that morning from roasted cauliflower blitzed with garlic, potato and turmeric.

Add the cauliflower florets along with the salt, pepper and red pepper flakes.

Toss broccoli florets, red pepper, 2 tablespoons oil, ½ teaspoon salt and ¼ black pepper.

Toss the florets into a blender and pulse to create a rice. 2.

Creamed cauliflower, toasted pancetta, florets of romanesco with strands of lightly pickled carrot.

Or omit the meat altogether and add some vegetables (I'd try chopped cauliflower florets).

Broccoli just crammed into a drawer so that it can shed tiny florets everywhere?

Add additional ingredients you like, such as crumbled bacon, diced broccoli florets, cheese, etc.

Add the broccoli florets, one teaspoon of the cayenne pepper and chile-pepper flakes.

Heat up your oven, then get the rice cooking, and break the broccoli into florets.

Dinner began with a silky cauliflower soup garnished with roasted cauliflower florets and summer truffle.

That said, roasted cauliflower or broccoli florets would make excellent ones, as would sautéed chickpeas.

If you add cauliflower or broccoli florets, give them at least five minutes to cook.

Cut cauliflower florets into 1 1⁄2-inch pieces, and place with leeks in a roasting pan.

Tasting Table's sampling of the recipes includes cauliflower florets two ways and fried sausages with apples.

They are back, the miniature explosion of florets, cut away just days before by the mower.

Remove any leaves or florets that would sit in the water, because those will cause bacterial buildup.

Instead of chopping off large puffy florets, which often end up overcooked, try making longer, thinner spears.

This main dish comes with Castelvetrano olive tapenade, broccolini florets, golden stripe baby beets, yellow squash, and zucchini.

Separately, I would steam a head or two of broccoli florets to dip in the buttery, lemony sauce.

I throw out the asparagus and rustle up a few baby carrots, broccoli florets, and frozen cauli rice.

Others, like the crisp, gingery little mouthfuls of batter-fried cauliflower florets (lasooni gobi), are available separately as well.

Between defining the edges of his peony leaves and excavating tiny florets of lilac, he would check his emails.

Before dinner, guests grazed on spiced florets of romanesco and briny Beau Soleil oysters garnished with wild onion flowers.

Add the cauliflower florets, cover, and steam for 33 to 8 minutes until very tender when pierced with a fork.

"When buying fresh broccoli, look for firm florets with a purple, dark green, or bluish hue on the top," Magee said.

Temperatures significantly above average for three of the past six days move the cherry trees to Stage 3 - extension of florets.

I grab bananas, almond butter, dates, kale, green beans, cauliflower florets, tomatoes, cucumbers, yogurts, grainless granola, and two packs of sliced salmon.

Using your knife, shave off the florets from the broccoli heads into 1/2-inch pieces and set aside in a bowl.

Simply combine cherry tomatoes, cucumber slices, celery sticks, pepper strips and baby carrots with cauliflower and broccoli florets onto a serving dish.

Roasted broccoli is my favorite veg to make right now: The edges crisp up delectably, and the florets embrace bright, strong flavors.

"I never stick with recipes," he said as he seared cauliflower florets until charred on one side but barely golden on the other.

These signs, exquisitely painted, wreathed the text in networks of florets, medallions and arabesques, done in lapis-lazuli blue or light-catching gold.

A 20-minute simmer lets aromatic garlic, onion and bay leaf infuse serious flavor into cauliflower florets mixed in with canned whole tomatoes.

If you want to kick them up into an even higher plane of existence, do like Cohen suggests and smoke your florets beforehand.

The chef-partner of Sugarcane Raw Bar Grill in Brooklyn makes a comforting dressing packed with flavor 4 cups fresh cauliflower florets 2 tbsp.

While florets roast, pulse broccoli stems, spinach, parsley, cheese, garlic, lemon zest and lemon juice in a food processor until combined, about 6 times.

Place broccoli florets and garlic cloves on a rimmed baking sheet and toss with to coat with olive oil, thyme, oregano, salt and pepper.

A bowl of fettuccine suffered the same fate, its crispy fresh broccoli florets and grill-blackened chicken breast overwhelmed by a heavy Alfredo sauce.

A broccoli and pine nut pesto, finished with quickly seared florets that have been spiced with paprika, coriander and Aleppo pepper, is especially delicious.

I'd pop a second pan into the oven with cauliflower or broccoli florets, and I'd put a pot of rice on the stove too.

Toss the broccoli florets and stems with the remaining 3 tablespoons of olive oil, the salt, and pepper and spread into an even layer.

In the winter, I tossed it with rings of unpeeled delicata and butternut squash, roasted in the oven, or tiny florets of roasted cauliflower.

A fresh, delicate branzino filet with puttanesca sauce was a riot of color, olives, capers and cherry tomatoes commingling with broccoli florets and baby carrots.

This large bag of broccoli florets was the perfect size for hosting a meal or to have as a general broccoli supply in the freezer.

With the tailgate of his truck serving as our work surface, we separated some greenhouse romanesco into florets and tossed them into a Dutch oven.

From the florets that were ripening, it pulled out the little seed parachutes one by one, deftly nipping off the seeds and discarding the feathery down.

Sheet-Pan Salmon and Broccoli With Sesame and Ginger Both salmon fillets and broccoli florets are familiar — maybe a little too familiar — to the weeknight cook.

Made up of veggies that stay firm and crunchy all week, like broccoli stems and florets, cabbage, and carrots, it's an instant salad base that's extra satisfying.

These products include things such as: vegetable platters, shaved Brussels sprouts, broccoli and cauliflower florets, stir fry mixes, vegetable risotto bowls, and bagged salads among other things.

Instead, you will eat only bites that are truly bite-sized: crunchy half-circles of cucumber, manageable florets of spicy broccoli, extremely spear-able pieces of chicken.

Roast florets of broccoli before letting them "get bloomed," as Mr. Anderer describes the process at Marta, in an apricot puttanesca with black olives and pickled chiles.

Some cut it into medium-size florets, but my favorite way is to slice cauliflower into rough, random-shaped slices a quarter- to a half-inch thick.

Beginning with a field of white hexagons, she created 'florets' by choosing one tile to be left unpainted while incrementally coloring the hexagons around it into an asymmetrical 'flower.

It was six months before the first piece emerged — three daisylike florets of pink, orange and lilac, underscored with a softly scrolled "Amy," made for a best friend's birthday.

Serve with broccoli rabe (or even just roast broccoli florets on the pan with the chicken) — and, in the style of my local place, a half-pound of rigatoni.

Cauliflower rice is all the rage right now — I'm a huge fan — but we don't always have the time or willingness to break out the blender and blitz those florets.

The cauliflower is broken into florets and browned in a saucepan (an impossible task when cooking a large amount), then seasoned with a sauce of cilantro, yogurt and green chiles.

The season dictates their support system: a field of sweet corn in summer followed by creamy butternut squash, fleshy mushrooms and smoky broccoli florets as the leaves started to turn color.

Long-stemmed broccoli should be tossed with olive oil and flaky salt and roasted in a hot oven until the florets turn the color of hazelnut shells and shatter on the tongue.

Lately, I've been subbing in cauliflower florets for some of the chickpeas when I make that original stew, just to get more vegetables in, and I'm going to do that here too.

We buy apples, bananas, strawberries, cotton candy grapes (the best, you have to try them), steaks, chicken, almond milk, eggplant, cauliflower florets, sweet potatoes, ground beef, pickles, parmesan cheese, and Greek yogurt.

Then, dress it up with a scattering of chive blossoms (but pull the blossoms apart into tiny florets and use restraint — the pretty violet flowers are more powerfully oniony than you might imagine).

I cut broccoli into florets and planked the stems, just as his mother did, and made a sauce out of three others: Wu's oyster and soy, and a little chile-garlic for zip.

Within an hour, the vodka I drank began sneaking up my esophagus, and I started puking, unable to ignore the tiny broccoli florets in my toilet bowl that were without a doubt Jack's fault.

Nothing goes to waste here, either—the leaves on the outside of the cauliflower will get the same treatment as the florets and the stalk of the broccoli gets peeled and diced as well.

Grilled Broccoli With Soy Sauce, Maple Syrup and Balsamic Vinegar Broccoli is the perfect medium for this sweet-and-salty sauce: The flavor gets tangled in the florets, which crisp up nicely in the heat.

Dumping cauliflower florets in a mixture of salt and lemon juice for 45 minutes to an hour turns them into spiky little flavor bombs, delivering high-pitched squeaks in salads, sandwiches or the stew recipe here.

I smack my chops looking at painstakingly staged pictures of cheese, bacon, mushroom and olive omelettes, salmon salad stuffed avocados, ribeye steaks, pan-seared in butter with handful of steamed broccoli florets drenched in olive oil.

To help, she created spicy chicken-fried cauliflower, in which she builds a crunchy crust by dipping large florets into heavily seasoned flour and then a wet batter of hot sauce, Dijon mustard and soy milk.

I bake a big salmon fillet, boil cauliflower (some of which I leave as florets and then use the rest for cheesy mashed cauliflower), roast Brussels sprouts, slice zucchini, and warm up the last of the risotto.

Eat Simone Tong was putting together a bowl of cold noodles, heap by delicious heap — salty ground pork, crushed peanuts, tiny mint leaves, florets of pickled cauliflower — a jumble of textures, lit up with vinegar and chile.

Flower heads are yellow, with both ray florets and disc florets.

Each head has 5 white disc florets but no ray florets.

The disc florets are bisexual, but any ray florets are pistillate.

The head is discoid, containing no ray florets but many funnel-shaped disc florets with lobes that resemble ray florets. The disc florets are yellow with brown throats. The fruit is an achene with a whitish pappus.

They contain white or pinkish ray florets surrounding small yellow disc florets.

The ray florets are white and the disc florets are white to cream becoming pink.

The cypselae of the ray florets are hairless, those of the disc florets short-haired.

Flowers emerge between May and July to show pale purple ray florets and yellow disc florets.

Each plant produces numerous flower heads, with purple or lavender ray florets and yellow disc florets.

It contains usually 4 tubular florets each no more than 1.5 millimeters long.Cymbolaena griffithii. Flora of Pakistan. Cypselas from bisexual florets have deciduous white pappi, and those from female florets lack pappi.

The plant produces many small, nodding (hanging) flower heads with purple disc florets but no ray florets.

The ray florets are pale violet or lavender and the disc florets are cream or pale yellow.

The flower head contains yellow disc florets and several yellow ray florets each about a centimeter long.

Each stem usually produces only one flower head, with rose-colored ray florets and yellow disc florets.

Polyarrhena reflexa has a strong likeness to Felicia echinata, but has bisexual ligulate florets, that are white, and have a pink wash on the outer surface, and male disc florets, while in F. echinata ligulate florets are female and blue-purple in color and the disc florets are bisexual.

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.

When flowering S. hispidulus produces both polliniferous (pollen bearing) florets and female florets. This is likely to increase the plants' probability to reproduce in a scenario where cross pollination might be hindered. A distinction in the number of polliniferous florets to female florets has been discovered between the two different components of S. hispidulus in New Zealand. The Northern component of S. hispidulus has been documented to grow between nine and eleven polliniferous florets per capitulum (cluster of small florets), whereas the southern component is recorded to carry between five and eight polliniferous florets per capitulum.

They contain many yellowish disc florets at the center and sometimes have small yellow ray florets as well.

It produces large, dense arrays of small yellow flower heads, each with disc florets but no ray florets.

The inflorescence is a panicle. Each composite flower is about wide and is set within a whorl of bracts. The individual blue- violet florets are tongue-like with a toothed, truncated tip, each having five stamens and a fused carpel. All the florets are ray florets; there are no disc florets.

In this species, staminodes in the ray florets are absent. The ray florets encircle many yellow disc florets. The lower part of the disc florets consist of a tube of long, set with glandular hairs, the five lobes at the top are about long. The disc florets contain both inferior ovaries topped by a forked style and five fertile anthers that form a tube around the style shaft.

Most incidences of the plant are ssp. exilis, which has long reddish disc florets in its head but only rudimentary ray florets. The rare subspecies aeolica, which is known from just a few occurrences in the Central Coast Ranges, generally produces some white ray florets around a center of yellow disc florets.

The head has a row of ray florets in shades of white, blue, pink, or mauve, and yellow disc florets.

The center of the head is filled with many disc florets and the circumference is lined with yellow ray florets.

12 to 17 yellow ray florets that can be up to 23 millimeters long and 40 to 65 disc florets.

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.

The disc florets are bisexual with a five-lobed corolla. The achenes of the ray florets are three-angled and have two or three wings; those of the disc florets are flattened and have one or two wings.

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.

Flower heads are 1-15 per branch, with both ray florets and disc florets, the flowers pale pink to rose- purple.

Each contains yellow disc florets and ray florets. The fruit is an achene up to a centimeter long including its pappus.

Each head contains many yellowish disc florets and many pistillate florets around the edges. The latter may have minute ray florets. The fruit is an achene a few millimeters long which is tipped with a small pappus of toothed scales.

The center is filled with yellow disc florets with purple anthers. The fruits are small achenes of two types. The ray florets yield hairy, curved fruits with no pappus, while the disc florets yield fruits with a long, hairlike pappus.

Disc florets in the overall genus can range anywhere from 12-172 in quantity, however, in contrast to ray florets, disc florets are actually fertile, and bisexual as well. Their colors differ on each part of the floret (i.e., the anthers are black or yellow, and the corollas are the same color as the ray florets). In S. calva, the dis florets are enumerated from around 90-154, with the anthers almost always yellow, scarcely black.

The flower heads contain many yellow disc florets and no ray florets. Flowering occurs in May through August.Sphaeromeria simplex. Flora of North America.

Each stem produces one or a few flower heads, each with pink or lavender ray florets and white or pale yellow disc florets.

4: 424. 1897. Each flower head has a center of six yellowish disc florets with black stamens surrounded by five yellow ray florets. The ray florets generally have three teeth, the central tooth being the smallest. Plants flower in May through October.

Flower heads are sometimes produced one at a time, sometimes in small groups, each head with light purple disc florets but no ray florets.

Forms of G. diffusa with thirteen ray florets per head (which always have dark spots) differ from G. corymbosa, G. personata, G. parviligulata (all with eight ray florets per head), and G. piloselloides (with either five or eight ray florets), and differ from G. alienata, G. integrifolia and G. warmbadica (all without spots). The form of G. diffusa with eight florets per head (which is consistently found only in the Richtersveld, and has 18–31 narrowly triangular involucral bracts) differs from G. alienata, G. integrifolia and G. warmbadica (all with thirteen ray florets), from G. parviligulata and G. personata (ray florets not reaching beyond the tips of the involucral bracts), from G. corymbosa (has bristle-like involucral bracts), and G. piloselloides (has five ray florets with 15–20 involucral bracts, or eight ray florets with 35–45 bracts).

Each flower head has several rows of dark-colored phyllaries and an open end revealing disc florets and longer protruding ray florets. The florets are yellow when young but may age to red or purple.Flora of North America, Hazardia cana (A. Gray) Greene, 1887.

Some species have ray florets in shades of yellow, or white with yellowish bases. Some species lack true ray florets but have flat yellowish disc florets that look like rays. The fruit is a ribbed, glandular cypsela, usually with a pappus on the end.

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.

The heads are lined with very glandular phyllaries. Each contains five yellow ray florets, each about half a centimeter long, and six yellow disc florets.

In herbarium specimens, colors may change even when dried professionally, such as from bright yellow to green in the aptly named F. smaragdina, from yolk yellow to bright yellow in F. bohmii, and from white to pink in F. welwitschii. Some species across the sections have white ligulate florets, and specimens with white florets occur in many species that usually have bluish ligulate florets. The tube of the florets is often densely set with glandular hairs. Disc florets are yellow when young, and may become reddish later.

Each head has 20–35 pink or white ray florets surrounding numerous yellow disc florets. The species grows on ledges and in cracks in cliff faces.

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.

The florets are cross-pollinated by the wind. Florets drop individually.leaving behind the glumes. The fruit (grains) are 1.6-1.9 mm long, from amber to brown.

The Leucanthemum head has about 13 to 34 ray florets of various widths, occasionally more, and rarely none. The ray florets are always white but fade pink with age. The head has over 100 yellow disc florets at the center. The fruit is a ribbed, hairless cypsela.Leucanthemum.

Each head has a center of yellowish dark-tipped disc florets and a fringe of bright yellow to white ray florets, often with purplish striping on the undersides. The ray florets are toothed or lobed on the tips, with the middle tooth thinner than the others.

The face is fringed with 3-14 (typically 5) broad, 3-lobed ray florets which are usually white, but sometimes yellow. The center contains yellow disc florets with yellow anthers. The fruit is a hairy achene; fruits on disc florets have a pappus of stiff white hairs.

All the species have disc florets, while some have ray florets but others do not. Ericameria nauseosa, (synonym Chrysothamnus nauseosus), is known for its production of latex.

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.

The head is discoid, containing only yellow disc florets, and no ray florets. The fruit is an achene about 7 millimeters long, not counting its white pappus.

Each head contains 15-20 blue or purple ray florets but no disc florets. The fruit is a brown achene.Flora of North America, Lactuca graminifolia Michaux, 1803.

Each head contains 12–24 blue ray florets but no disc florets. The fruit is a brown achene.Flora of North America, Lactuca hirsuta Muhlenberg ex Nuttall, 1818.

The head is discoid, containing no ray florets but many funnel-shaped disc florets with long, narrow lobes. These disc florets are usually yellow, but some plants bear white or pink colouration in certain populations. The corolla is generally yellow in most of the disc florets, one diagnostic separating other white and pink species such as L. nemaclada, but some outer florets may have a corolla that is dark purple, especially in white or pink flowering specimens. The fruit is an achene with a whitish pappus of bristles.

Each flower head is lined with phyllaries which are coated in large bulbous resin glands. They are hairy and sticky in texture. The head contains many yellow disc florets surrounded by three to 10 golden yellow ray florets. The ray and fertile disc florets produce achenes of different shapes.

Each head has a bullet-shaped involucre lined with woolly, purple-tipped phyllaries. The head is discoid, containing no ray florets but many funnel-shaped pink, lavender, or purple disc florets with lobes that resemble ray florets. The fruit is an achene with a whitish pappus of bristles.

Each has a few three- lobed yellow ray florets around a center of yellow disc florets. The fruit is a club-shaped achene about half a centimeter long.

The head has a center of yellowish disc florets and a fringe of pointed yellow ray florets each up to long. The fruit is an achene in length.

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.

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.

They contain many yellowish disc florets at the center. Each has usually 13 ray florets 1 to 1.5 centimeters long which can be most any shade of red-purple.

The head contains many yellow disc florets with a fringe of small yellow ray florets. The fruit is a flat, oval-shaped achene up to about 2 millimeters long.

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.

It spreads at the top with several yellow ray florets a few millimeters long and black-tipped disc florets. The fruit is a shiny black achene with no pappus.

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.

At up to 1.5 centimeters wide, the heads of this species are the largest of any in genus Tetramolopium. They contain many white ray florets and yellow disc florets.

There are 4–10 florets on each umbellule with the central florets only possessing anthers. The narrow, elongated fruit is ribbed and bristly, measuring up to 2.5 centimeters long.

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.

These have blue to mauve ray florets and yellow disc florets. The species occurs in woodland and on rocky hills in Western Australia, South Australia and the Northern Territory.

Each flower head has 5 to 8 ray florets and 5 to 9 disc florets; the ray florets have laminae 2–3 mm long and 0.75 mm wide, and the disc florets have corollas 3–3.5 mm long. The seeds are produced in fruits called cypselae which are 2 mm long and have moderately short-strigose hairs. The fruits are topped with silky hair-like pappi 2–3 mm long. Online at efloras.

The flower head contains up to 40 yellow disc florets, and usually either 8 or 13 yellow ray florets, though these are sometimes absent. It blooms in July to August.

Each head is a capsule of layered greenish glandular phyllaries with an array of 10-13 cylindrical, protruding golden yellow disc florets at one end. There are no ray florets.

Each head has 7 to 10 yellow ray florets no more than 6 millimeters long. Most ray florets have three tiny lobes at the tips. The center of the head is filled with yellow disc florets tipped with black, dark purple or red anthers. The flowers are most often pollinated by bees.

Different forms may occur on the same tree, or on different trees. The Asteraceae (sunflower family), with close to 22,000 species worldwide, have highly modified inflorescences made up of flowers (florets) collected together into tightly packed heads. Heads may have florets of one sexual morphology – all bisexual, all carpellate or all staminate (when they are called homogamous), or may have mixtures of two or more sexual forms (heterogamous). Thus goatsbeards (Tragopogon species) have heads of bisexual florets, like other members of the tribe Cichorieae, whereas marigolds (Calendula species) generally have heads with the outer florets bisexual and the inner florets staminate (male).

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.

Achenes arising from the ray florets are light-colored and tipped with pappi, while those from the disc florets at the center of the flower head are darker and lack pappi.

The head is discoid, containing only yellow disc florets, and no ray florets. The fruit is an achene about 5 or 6 millimeters long, not counting its white to brownish pappus.

The flower head has a center of glandular yellow disc florets and a fringe of yellow ray florets. The fruit is an achene a few millimeters long with a white pappus.

It generally has only one flower head with lemon yellow ray florets and red or maroon disc florets. It grows in dry, sandy locations.Flora of North America, Berlandiera subacaulis (Nutt.) Nutt.

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.

A particular character of Gudelia that is rare among the Asteraceae is that florets are gender specialised, with the central floret being functionally hermaphrodite and the marginal florets being functionally male.

The florets were used in ancient times to flavor sesame oil. Al- Tamimi, the physician (10th century), describing the process, writes that in Palestine it was commonly practiced to collect the yellow florets of the spiny broom (), spread them upon thickly woven sackcloth which laid out in the hot sun, pour over them hulled sesame seeds and cover them with linen sheets, while leaving them in this condition until the moisture in the florets has evaporated. In this manner, the sesame seeds would absorb the sweet fragrance of the florets. After one or two days, the florets and sesame seeds were then separated, the sesame placed on clean linen garments, being allowed to further dry-out from the moisture absorbed by the florets.

The florets were used in ancient times to flavor sesame oil. Al-Tamimi, the physician (10th century), describing the process, writes that in Palestine it was commonly practiced to collect the yellow florets of the spiny broom (), spread them upon thickly woven sackcloth which laid out in the hot sun, pour over them hulled sesame seeds and cover them with linen sheets, while leaving them in this condition until the moisture in the florets has evaporated. In this manner, the sesame seeds would absorb the sweet fragrance of the florets. After one or two days, the florets and sesame seeds were then separated, the sesame placed on clean linen garments, being allowed to further dry-out from the moisture absorbed by the florets.

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.

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.

Each head contains many yellow disc florets and sometimes one or two ray florets as well. The fruit is an achene a few millimeters long topped with a brown or white pappus.

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.

The ray florets are lavender or blue in color, or sometimes white. There are up to 30 ray florets measuring up to 1.5 centimeters in length. At the center are disc florets in shades of cream and yellow to purple or brown. This plant grows in many types of habitat including woody and marshy areas, as well as roadsides.

There can sometimes be over 1000 small disc florets in the head, each yellow at the bottom but brown or purple toward the tip. The 13-17 yellow ray florets are small and inconspicuous, pointing backwards down the flower stalk. Sometimes the ray florets are completely absent. The fruit is a hairy achene one to two millimeters long.

The lemma tips are fused into the "crown", a short membrane that surrounds the base of the lemma. The rim of the crown usually has hairs. Many species form both cross-pollinating and self- pollinating florets in the terminal panicle. The self-pollinating florets have 1–3 small anthers; the cross-pollinating florets have 3 longer anthers.

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.

The head has a center of many yellow disc florets and a fringe of 25-35 lavender or white ray florets each a few millimeters long. The fruit is a hairy achene between 1 and 2 millimeters long. Fruits from the disc florets generally have pappi.Flora of North America, Arida arizonica' It flowers between March and June.

Each head contains up to 40 yellow disc florets surrounded by a fringe of up to 20 yellow ray florets. The fruit is an achene up to a centimeter long including its pappus.

The head has a center of many small yellow disc florets and a fringe of 5 to 8 bright yellow ray florets each usually under a centimeter long. The fruit is an achene.

It produces flowers between August and October. The ray florets range from dark blue or purple to white (rarely). The disc florets are yellow to cream-colored, becoming pink or purple with maturity.

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.

They vary in shape. They are glandular in most species. The inflorescence is a solitary flower head. The head can have 15 or more ray florets, while some taxa lack any ray florets.

Flowers have a conical shape and are about 2.0–4.5 cm tall, 1–1.5 cm wide with yellow ray florets circling a conspicuous dark brown dome-shaped cone of many small disc florets.

They bear clusters of flower heads with golden disc florets.

It is sometimes served garnished with croutons or broccoli florets.

Gymnarrhena has aerial inflorescences that consist of many individual flower heads with disk florets which are either functionally male, with few florets each, or female with one floret only. This is a rare character combination, that is further known from the inflorescences of Gundelia. The latter however is a much larger, erect, thistle-like plant, which has latex and pentamerous florets. In Gymnarrhena the male florets (the only ones where a judgement can be made without enlargement) are (tri- or) tetramerous.

The common base of the floret is flat or somewhat convex, and is without bracts subtending individual florets. Each flower head contains a hundred to two hundred very slender disk florets. There are usually, twenty to thirty male florets at the centre of a flower head, which are tube- to bell-shaped, with five lobes, the tube being about mm long, and the free part of the lobes about 4 mm long. In the male florets, the stigma does not split into lobes.

Known extant Layia glandulosa populations within the range of Layia discoidea typically have deep yellow ray florets. Individuals of Layia discoidea occasionally display ray florets that are light yellow in color (see Calphotos and Harrison 2013). Individuals bearing ray florets have been observed in populations at the New Idria, Laguna Mountain, and Panther Peak serpentine masses. It is unclear if the ray florets are a result of hybridization with nearby Layia glandulosa, a genetic mutation, or simply induced by environmental conditions.

The head contains 27 to 38 yellow ray florets and many yellow disc florets. The fruit is a cypsela which can be almost long and is tipped with a pappus of two short awns.

The inflorescence is a solitary flower head with a small, hard, cuplike involucre of about 8 fused phyllaries. From the involucre bloom about 8 golden ray florets around a center of hairless disc florets.

Cultivars are bred for varied flower colors; the ray florets can be orange or white with purple, yellow, or orange bases, and the disc florets at the center can be brown, purple, or black.

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.

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.

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.

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.

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.

For variation and texture, I pan-fry florets and add them.

Subgeneras Artemisia and Absinthium, are sometimes, but not always, considered the same subgenera. Subgenus Artemisia (originally Abrotanum Besser) is characterized by a heterogamous flower head with female outer florets and hermaphrodite central florets, and a fertile, glabrous receptacle. Absinthium DC, though sometimes merged with subgenus Artemisia is characterized by heterogamous flower head with female outer florets and hermaphrodite central florets, and a fertile, hairy receptacle. Generally, previously proposed monotypic and non-monophyletic subgenera have been merged with the subgenus Artemesia due to molecular evidence.

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.

The upper glume is also ovate, but unlike the lower, is also herbaceous with glabrous surface which can be pubescent as well. It is also obtuse and is in length. Florets are in length and are pubescent, emarginate, and mucronate as well. Both florets and glumes are 1-keeled, but the veins are different; Glumes are 5 while florets are 7–11.

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.

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.

They are generally aster-like in appearance with many disc florets in each head. There may be only disc florets, but sometimes there are also enlarged ray florets along the edges of the corolla. They may be white to yellow or pink.Flora of North America, Chaenactis de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.

The opposite leaves are narrow and about 2–5 cm long. The terminal flower heads are about 2.5 cm wide. They give a continuous display of white (only in the three species of the white-rayed complex), cream, or yellow daisylike ray florets, surrounding a darker orange center with the disc florets. These eight to 10 broad disc florets are functionally staminate.

Leaves higher on the stem are smaller and hairier. The inflorescence is a single flower head or a cluster of up to four. Each bell-shaped head is lined with phyllaries each up to 2 centimeters long. It has many yellow disc florets surrounded by a fringe of yellow ray florets up to 7 millimeters long; ray florets are occasionally absent.

Only ray florets are female, others are male, hermaphroditic or entire sterile. Head involucres are campanulate to cylindric or attenuate. Floret corollas are usually yellow, but white in the ray florets of a few species (such as Solidago bicolor); they are typically hairless. Heads usually include between 2 and 35 disc florets, but in some species this may go up to 60.

It also bears one or more tiny, glandular flower heads, each with 1 or 2 disc florets and sometimes 1 or 2 lobed white ray florets. The fruit is an achene; those arising from the disc florets may have a pappus of scales at the tip.Carr, Gerald D. 1975. Brittonia 27(2): 140–141Flora of North America, Calycadenia hooveri G. D. Carr, Brittonia.

The tubular florets are hermaphrodite while the ligular florets are sterile. The involucral bracts are linear to lanceolate. The plant prefers well-drained soils in full sun. The fruit is an achene, sought after by birds.

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.

Leaves can be up to 94 centimeters long and 25 centimeters wide. Inflorescence can be 100 centimeters tall and 70 centimeters in diameter. 10 to 13 ray florets 10–13 and 25 to 50 disc florets.

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.

These protect 12–16 pink, ray florets, surrounding many yellow disc florets. This species was only seen flowering once, in December. It is known from one location in the Langeberg, Western Cape province of South Africa.

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.

The head has yellow disc florets and no ray florets. The fruit is a fuzzy achene about 3 millimeters long. ;Conservation It is a California Native Plant Society listed Endangered species, and is threatened by proposed mining.

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.

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.

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.

Each spikelet has one fertile floret and one or two sterile florets.

The three species belonging to the section Anhebecarpaea are erect shrublets with overlapping, initially hairy leaves, large heads with hairless purplish ligulate florets and yellow disc florets, set at the tip of the stems in umbel-like inflorescences. The pappus bristles are all equal in length, firm, indehiscent and are set with many teeth, and the cypselas are yellow- to red-brown, those belonging to the ligulate florets hairless, those of the disc florets with short bristles. The three species are endemic to coastal areas of the Western and Eastern Cape.

The centre of the head is filled with yellow disc florets and there are usually many yellow ray florets around the circumference. The flower head fills with a copious white exudate, especially during the early stages of blooming.

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.

The heads contain yellow disc florets, and some species have yellow ray florets. The fruit has a pappus with an outer row of wide, membranous scales and an inner row of longer, narrower scales. ; SpeciesCalostephane. The Plant List.

The inflorescence bears a single flower head lined with green or purplish phyllaries. The head contains many purple ray florets between 1 and 2 centimeters long around a center of yellow disc florets. The fruit is an achene.

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.

The heads have 75 to 150 ray florets not more than a centimeter long which are white in color, fading purple. There are many yellow disc florets at the center. The fruit is about one millimeter long.Erigeron divergens.

Ligulate florets are mostly bluish purple, particularly in the sections Lignofelicia, Anhebecarpaea and Felicia. In the section Dracontium, the color of the ligulate florets ranges from pale to middle blue, while in the section Neodetris the range of bluish colors is even larger. In these two sections the color is never purplish. Yellowish ligulate florets are restricted to F. mossamedensis and some species in the section Longistylis.

It has densely woolly, glandular herbage of thick, serrated, oval-shaped leaves up to long. At the ends of its whitish stems it produces bell-shaped flower heads each about a centimeter long. Each flower head has several rows of white woolly phyllaries and an open end revealing disc florets and longer protruding ray florets. The florets are yellow and may age to red or purple.

Most Felicia species have a yellow disc, and blue, purple or pink, rarely white or yellow ray florets. F. josephinae, F. heterophylla and a form of F. amoena subsp. latifolia have deep purple disc florets. From these two taxa, F. josephinae differs by its broad creamy ray florets, which are more narrow and purple in F. heterophylla and narrower and blue in F. amoena subsp. latifolia.

Senecio vulgaris is an erect herbaceous annual growing up to 16 inches (45 cm) tall. The inflorescences usually lack ray florets, the yellow disc florets mostly hidden by the bracts giving the flowers an inconspicuous appearance. Senecio vulgaris is very similar to Senecio viscosus but S. vulgaris does not have the glandular hairs and ray florets found in S. viscosus.Parnell, J. and Curtis, T. 2012.

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.

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.

Ligulate florets are sometimes absent in several taxa belonging to the section Lignofelicia (F. filifolia subsp. bodkinii, F. whitehillensis), and in F. macrorrhiza ligulate florets are never present. This is also true for F. ferulacea of the section Felicia.

Spikelets are obovate, solitary, long and are pediceled. The pedicels are filiform. Besides the pedicels, the spikelets have 2 fertile florets which are diminished at the apex. The sterile florets are also present and are barren, cuneate and clumped.

Each head has 40–90 purple, pink or white ray florets surrounding numerous yellow disc florets. The species grows on beaches, gravel bars, and alpine tundra.Flora of North America, Erigeron purpuratus Greene, 1900. Purple fleabane Greene, Edward Lee 1900.

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.

It is an perennial herb up to 100 cm (40 inches) tall. One plant usually produces only one flower head, containing 0-8 yellow ray florets surrounding sometimes as many as 150 or more yellow or brown disc florets.

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.

Spikelets comprise 5 to 8 florets, diminishing at the apex. Glumes are numerous.

The center of the head is filled with many small yellow disc florets surround by numerous golden ray florets. The head produces a thick white exudate, especially in new flower heads.Flora of North America, Grindelia hirsutula Hooker & Arnott, Bot. 1833.

They also have 2 fertile florets which are diminished at the apex. Lemma have ribbed literal veins with rugulose and scaberulous bottom. Palea is ciliolate and have scaberulous keels. Rhachilla is extended while sterile florets are barren, cuneate and are clumped.

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.

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.

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.

Tall shrub up to 2 m. Leaves pinnatisect with 10-15 pairs of equally spaced lobes, the lobes 6–40 mm wide. Inflorescence very large and dense, compound-corymbose. Individual heads with 30-50 yellow ray florets but no disc florets.

Molecular Phylogenetics and Evolution 48(1), 47-60. Most species have yellow ray florets, a few have white, and B. purpurea has light purple or mauve florets. B. purpurea is cultivated as an ornamental plant. Some Berkheya are known as weeds.

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.

The center is filled with yellow tipped brown disc florets and the circumference is lined with bright yellow ray florets 2 to 4 centimeters (0.4-1.2 inches ) long. The plant reproduces by seed and by vegetative sprouting from the rhizome.

The phyllaries are coated in knobby yellow resin glands. At the tip of the inflorescence are minute yellowish ray florets each under a millimeter long, and one or two yellow disc florets. The fruit is an achene with no pappus.

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.

Both the northern and southern components carry a more equal number of female florets compared to the florets with the polliniferous stamen. This might indicate a different need for pollen carrying flowers between the two S. hispidulus components in New Zealand.

Heads are borne singly. Outer florets of the head are pink to purplish, the inner florets white. Flowers tend to be fully open early in the season but remain closed and self- fertilizing later in the year.Nesom, G. L. 1983.

They carry 2 fertile florets which are oblong and long. Fertile spikelets are pediceled, the pedicels of which are curved, ciliate and filiform. Florets are diminished at the apex. Its lemma is pubescent and have hairy veins with asperulous surface.

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.

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.

This is a small annual herb producing a glandular stem up to about 35 centimeters tall. The leaves are linear to lance-shaped, with the lower ones lobed and up to about 7 centimeters in length. The daisylike flower heads contain toothed yellow ray florets and yellow disc florets with yellow anthers. The fruit is an achene; fruits on the disc florets have a long white pappus of plumelike bristles.

The basal leaves have thick, toothed blades up to 4 centimeters long, and those higher on the stem have smaller, more dissected leaves. The inflorescence bears a single flower head or an umbel-shaped array of up to 6 heads. Each head has green to reddish or purplish phyllaries, many disc florets, and often several ray florets. The florets may be most any shade of red, orange, or yellow.

These ray florets are about 6 mm (¼ in) long and 1½ mm (0.06 in) wide, with glandular hears on the tube shaped base. The disc florets are about 4 mm (0.16 in) long and also have a glandular tube. Within the ray florets are five anthers merged into a tube through which the style grows while gathering the pollen on its shaft. Each anther is topped by a triangular extension.

Some typical quesadeños sweets are: fig bread, papajotes, sweet gachillas, florets, drunkards, bath donuts.

The flower capitula have no ray florets, and appear on a terminal, branching inflorescence.

The florets incurve or reflex in a regular manner and fully conceal the center.

Calendula officinalis is a short-lived aromatic herbaceous perennial, growing to tall, with sparsely branched lax or erect stems. The leaves are oblong-lanceolate, long, hairy on both sides, and with margins entire or occasionally waved or weakly toothed. The inflorescences are yellow, comprising a thick capitulum or flowerhead 4–7 cm diameter surrounded by two rows of hairy bracts; in the wild plant they have a single ring of ray florets surrounding the central disc florets. The disc florets are tubular and hermaphrodite, and generally of a more intense orange-yellow colour than the female, tridentate, peripheral ray florets.

The flower capitula of Senecio toxotis are without ray florets The flower capitulum has no ray florets, and appears at the tip of a slender, erect inflorescence.G.Rowley (1994). Succulent Compositae: A Grower's Guide to the Succulent Species of Senecio & Othonna. Strawberry Press.

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.

It palea is long and have 2 veines. The palea keels are ciliolate while it surface is scaberulous. Apical florets are in length and are barren, sterile and have a cuneated clump. Glumes are thinner than fertile lemma and could exceed florets apex.

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.

The typical subspecies has leaves of about 6 x 4½ cm with few strong teeth, and yellow disc florets. Subspecies ionops has leaves of 2½ cm long with weak teeth, and disc florets that are dark wine red in the upper parts.

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.

Each head has 12–85 purple or white ray florets surrounding numerous yellow disc florets. The species grows on rocky slopes, ledges, ridges, and cliff faces at high elevations.Flora of North America, Erigeron radicatus Hooker, 1834. Hooker’s fleabane Hooker, William Jackson 1834.

Each head has 20–40, pink, or blue ray florets surrounding numerous yellow disc florets. The plant grows on rocky limestone slopes, frequently alongside sagebrush.Flora of North America, Erigeron parryi Canby & Rose, 1890. Parry’s fleabane Canby, William Marriott & Rose, Joseph Nelson 1890.

Ray florets are yellow with red or purple flecks; disc florets are yellow. The species grows in sandy soil in open woodlands.Flora of North America, Coreopsis nuecensis A. HellerHooker, William Jackson 1836. Curtis's Botanical Magazine 63: plate 3460 and two subsequent text pages.

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.

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.

Involcre is 3 to 5 millimeters long and about 2 millimeters in diameter. Pale to bright yellow ray florets and 4 veined spreading disc florets that turn red brown. ;Fruits: Ribbed achenes 2 millimeters long and without hairs. Pappus 3.5 millimeters long.

The inflorescence is a flower head with a bell-shaped involucre of woolly-haired phyllaries. There are 12 or 13 yellow ray florets and about 30 disc florets at the center. The fruit is an achene with a pappus of scales.Thymophylla tephroleuca.

Inside are many purple, lavender, pink, or white ray florets and a center packed with up to 120 tubular yellow disc florets. The fruit is an achene with a pappus of reddish bristles on top. Corethrogyne filaginifolia; formerly Lessingia filaginifolia var filaginifolia.

These bisexual florets have obtuse and irregular anther bases. They have pistillate ray florets that can be yellow or white. From these pistillates, they produce achenes, which are indehiscent and angled. The pappus, a modified calyx, is not present or extremely small.

Each head contains 10–20 blue or white ray florets but no disc florets. The fruit is a brown achene.Flora of North America, Lactuca floridana (Linnaeus) Gaertner, 1791. Lactuca floridana was found to contain 11β,13-Dihydro- lactucin-8-O-acetate hemihydrate.

The fruit is an achene; fruits from the disc florets generally have a white pappus.

The fruit is an achene; fruits on the disc florets often have a long pappus.

The fruit is an achene; fruits on the disc florets have a pappus of bristles.

Ray florets are essentially the colorful, flowery portion of the plant. In most Simsia, the amount of ray florets can be anywhere between non-existent and as many as 45. They vary in colors, being any mixture of orange-yellow, lemon-yellow, pink, purple, or white. Simsia calva tend to have 8-21 ray florets with their colors being orange-yellow, with traces, lining, or fully colored faces of brown or purple.

The inflorescence is made up of one or more flower heads at the top of the stem. Each head has a bell-shaped involucre of bristly, glandular phyllaries at the base, a center of black-tipped yellow disc florets, and a fringe of 8 to 12 golden ray florets roughly 1 centimeter long. The fruit is a club-shaped achene just under a centimeter long; achenes arising from the disc florets have pappi of scales.

Sunflowers are usually tall annual or perennial plants that in some species can grow to a height of or more. They bear one or more wide, terminal capitula (flower heads), with bright yellow ray florets at the outside and yellow or maroon (also known as a brown/red) disc florets inside. Several ornamental cultivars of H. annuus have red-colored ray florets; all of them stem from a single original mutant.Heiser, C.B. The Sunflower.

The inflorescence is a series of dense clusters of flower heads surrounded by long, narrow bracts covered in obvious bulbous glands. The sticky, glandular flower head has a center of several disc florets surrounded by a few white, yellow, or red ray florets. Each ray floret has three lobes at the tip, the middle lobe being shortest. The fruit is an achene; those developing from the disc florets have a pappus of scales.

' leaves of Darlingtonia californica Digitalis ferruginea owes its specific name to its ' (rust-coloured) flowers. Calochortus fimbriatus has ' flowers. Panaeolus cinctulus has gently ' . The of Zinnia elegans is typical of many Asteraceae in that it includes two types of s, ray florets and disk florets.

Cultivars with flowers of other colors were obtained in particular by hybridization. Cultivated varieties can have ray florets in most any color, including red, pink, blue, purple, and white. They are up to 3.5 centimeters long. There are many yellow disc florets in the center.

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.

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.

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.

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.

The flower head is borne singly, usually on a leafless stalk. Hairless phyllaries are green, usually with tiny purple dots and nearly equal in length. The outer ones are wider than the inner. The corolla contains many yellow ray florets and no disc florets.

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.

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.

Vegetation and Flora of the Sonoran Desert 2 vols. Stanford University Press, Stanford Bahia absinthifolia is a perennial up to 40 cm (16 inches) tall. It has yellow flowers with both ray florets and disc florets. It grows in sandy soil in desert regions.

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.

Each ray floret is up to 2 centimeters long. The florets are purple and have been described as "dark purple" to "lavender violet to dark reddish purple". The disc florets at the center are white and purplish. This plant blooms in October and November.

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.

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.

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.

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.

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.

The leaf base or petiole usually has at least one spine. The inflorescence is a solitary rounded flower head lined with spine-tipped phyllaries. The head has 15 to 30 short, yellow ray florets. At the center are many yellow disc florets with black anthers.

The inflorescence is a solitary flower head atop an erect peduncle. The hairy head has several yellow disc florets each around a centimeter long and at the center many yellow disc florets. The fruit is a silky-haired achene tipped with a white pappus.

It spikelets are elliptic and are long. The glumes are purple in colour with pale green florets that have 2-3 fertile florets. The stem itself is with its lemma being elliptic and long. It is also herbaceous, granular- scaberulous and is 5–7-veined.

The leaf blades are sometimes borne on petioles, which may have spines. The flower head contains 2 female disc florets and 2 to 4 male disc florets. The latter are whitish, greenish, or yellowish. The fruit is a rough- edged cypsela with a pappus.

The fruit is an achene; fruits on the disc florets often have a white bristly pappus.

The upper florets are puberulent at the bases and apices. Flowering is from May through October.

The fertile florets produce seeds, and when they are ripe, the spikes fall to the ground.

The fruit is an achene; fruits on the disc florets often have a white bristly pappus.

Each head is lined with hairy purple-tipped phyllaries and contains up to 130 hairlike white to pink ray florets each measuring only 2 or 3 millimeters long. These surround numerous yellow disc florets in the center.Flora of North America, Hooker, Fl. Bor.-Amer. 2: 18. 1834.

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.

The leaves have wedge- shaped or oval blades with three lobes and are hairy in texture. The hairy flower head contains white ray florets that develop a pinkish tinge as they dry. There are yellow disc florets at the center. Blooming occurs in May through October.

It is a small, evergreen shrub growing to tall and broad. Densely covered in aromatic, grey-green leaves, in summer it produces masses of yellow, button-like composite flowerheads, held on slender stems above the foliage. The disc florets are tubular and there are no ray florets.

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.

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.

Each head has a center of yellow disc florets and a fringe of 7 or 8 yellow ray florets each up to 3 centimeters long. The fruit is a dry achene with sharp barbs that adhere to fur and clothing, thus helping the plant with seed dispersal.

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.

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.

Spikelets are elliptic, solitary, are long and have fertile spikelets that are pediceled. The pedicels are curved, filiform, pubescent, and hairy above. Besides being pediceled they also have 1-2 fertile florets which are diminished at the apex. Sterile florets are barren, cuneate, clumped and are long.

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.

The large, slightly convex receptacle shows numerous, yellowish orange, hermaphrodite disc florets and two whorls of yellow ray florets. They flower from March to July. The long, villous, involucral bracts end in an apical sharp-pointed spine. The achene is glabrous or is covered with short hairs.

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.

Nesom, Guy L. 2004. Sida 21(1): 22-24 includes distribution map on page 23 Erigeron davisii is a perennial herb up to 30 cm (12 inches) tall. Each branch generally has only one flower head, with 50–80 white ray florets and numerous yellow disc florets.

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.

The plant generally produces only one flower head per stem, each head with up to 35 blue or purple ray florets surrounding numerous yellow disc florets. The species grows on ridges, rocky slopes, and outcroppings.Flora of North America, Erigeron nanus Nuttall, Trans. Amer. Philos. Soc., n. s.

The plant generally produces only one flower head per stem, each head with up to 35 blue or purple ray florets surrounding numerous yellow disc florets. The species grows on ridges, rocky slopes, and outcroppings.Flora of North America, Erigeron nauseosus (M. E. Jones) A. Nelson, Bot. Gaz.

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.

The flower head is solitary atop the stem and at the ends of branches. It has yellow ray florets with 2 to 4 teeth at the tips and tubular yellow disc florets at the center. The fruit is a cypsela with a pappus of scales.Buphthalmum salicifolium.

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.

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.

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.

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.

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.

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.

Inflorescence is many-headed, bright yellow, and the flowering spike grows to have a flat top. The flower heads are cylindrical, about in diameter; surrounded with a whorl of five to seven bracts, to long which are surrounded by two to four smaller bracts or bracteoles. Three to six ray florets; each ligule approximately long; ten to twelve disc florets, to long. When cultivated in the gardens of the National Museums of Kenya, it has orange florets.

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.

The fruit is an achene; the fruits of the disc florets sometimes have a pappus of scales.

The ray florets are narrower than in Aster, but are clearly longer than the involucre (= whorled bracts).

Phyllotaxis of sunflower florets (1st p. 635 – 2nd p. 912 – Bonner removed) ::Thompson analyses phyllotaxis, the arrangement of plant parts around an axis. He notes that such parts include leaves around a stem; fir cones made of scales; sunflower florets forming an elaborate crisscrossing pattern of different spirals (parastichies).

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.

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.

The spikelets also have one basal sterile florets and one fertile florets while its rhachilla is not extended. They are in length and are lanceolate. The glume is shorter than a spikelet and thinner than fertile lemma. It lower glume is ovate with its awn being in length.

It contains pink or purple ray florets up to 1.5 centimeters long and many disc florets. The fruit may be nearly a centimeter long including its pappus. There were previously two varieties of this species, but these subtaxa are no longer recognized. This plant may hybridize with Xanthisma grindelioides.

The large, slightly convex receptacle shows numerous, yellowish orange, hermaphrodite disc florets and two whorls of yellow ray florets. The long, villous, involucral bracts end in an apical sharp-pointed spine. The flowering period extends from May through July. Fruits are achenes of about 2–2,5 millimeters of length.

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.

The leaves are alternate, up to long and broad, and clasp the stem. The main vein on the lower leaf surface is hairless or slightly hairy near the tip. It flowers between August and October. The flowerheads are across with up to 40 ray florets and 50 disc florets.

The ray florets range from white to pale blue or lavender. The disc florets are yellow to cream-colored, becoming pink or purple with maturity. Compared to S. puniceum, this species is less hairy overall, has denser inflorescences of smaller, whiter flowers, and grows in larger, denser patches.

Symphyotrichum ciliolatum can reach heights of up to and can spread via long rhizomes. The leaves are typically heart-shaped with winged petioles. Flowering occurs between late July and October. The ray florets are blue or bluish purple, and the disc florets are yellow, becoming reddish purple with maturity.

Each head is lined with glandular green or purplish phyllaries. It contains purple ray florets which may be up to 2.2 centimeters long, and yellow or purplish disc florets. Blooming occurs in summer, or as late as October. The fruit is an achene with a pappus of bristles.

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.

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.

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.

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.

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.

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.

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.

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.

Each head has 65–110 blue, lavender, or white ray florets surrounding numerous yellow disc florets. The species grows on cliffs, talus, gravel, and dry tundra.Flora of North America, Erigeron porsildii G. L. Nesom & D. F. Murray, 2004. Porsild’s Arctic fleabane Nesom, Guy L. & Murray, David Fletcher 2004.

The head has a center of many yellow disc florets surrounded by up to 25 yellow ray florets. It blooms in the Spring. S&S; Seeds−California Native Seeds: Encelia actoni The fruit is an achene about half a centimeter long, usually lacking a pappus. It reseeds well.

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.

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.

The plant grows up to 40 cm in height. The leaves are alternate, 4 cm long, 1.2 cm wide. The flowers occur in cymose inflorescences; they have 8–10 yellow outer florets with 15–25 funnel-shaped disc florets. The fruit is brown and 2.2–2.5 mm long.

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.

There is several flowering heads per plant, with white or pale pink disc florets but no ray florets. The roots and stems are edible raw or cooked. The stem, when split open and peeled, can be eaten like celery. Bears, deer and elk also like to eat the plant.

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.

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.

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.

The leaves are generally ericoid, alternate or subopposite, often fascicled. The flowering heads are small, with short, racemose or subumbellate peduncles. In a few species the flowers are solitary. The flowers are heterogamous, a few female florets in each head occurring together with several bisexual, sterile disk-florets.

The small flower heads are up to a centimeter wide (0.4 inches) but typically 2-3mm in diameter and have rounded center filled with many disc florets usually in a shade of bright yellow. There are typically five white ray florets widely spaced around the center, each an oval shape typically with three crenate teeth at the tip. Both the disk and ray florets are fertile producing an achene with a large pappus.Flora of China, Galinsoga quadriradiata Ruiz & Pavon, 1798.

In Didelta, the centre of the head is taken by 3–5 clusters of bisexual yolk yellow disc florets, sometimes divided from each other by male disc florets, and is surrounded by one complete whorl of infertile yolk yellow ray florets. The common base of the flowerhead swells around the developing fruitlets, become woody and breaks into segments when ripe. The fruitlets germinate within this woody encasing. The species of the genus Didelta can be found in Namibia and South Africa.

The inflorescence is a usually solitary sunflower- like flower head with a base up to 6 centimeters wide lined with several ray florets, each of which are 2 to 6 centimeters long. The yellow ray florets extend outwards and then become reflexed, pointing back along the stem. The disc florets filling the button-shaped to conical to cylindrical center of the head are greenish yellow. The fruits are achenes each about half a centimeter long tipped with a pappus of scales.

Later one new plant emerges (or sometimes up to five) from it. The common base of the florets (called the receptacle) does not have receptacular bracts (or paleas) at the foot of each floret. There are between five and fourteen infertile ray florets that have a base color that ranges between cream and dark orange. At the base there may be darker spots, sometimes jointly creating a ring, but sometimes only present on two or three of the ray florets.

The erect flowerheads stand individually at the tip of the stems or with two or three together. Each is 3–4 cm long, 4½–6 cm wide, and contains disk florets only. The common base of the florets (or receptacle) is flat with indents where the florets are inplanted, while scales and hairs are absent. The bell-shaped involucre consists of four to five rows of green bracts, sometimes tinged purple at the stretched tip and with a papery irregularly fine dentate edge.

The approximately ten to thirteen, light violet to white, female ray florets are hairless and encircle many yellow bisexual disc florets, in the lower part loosely set with delicate multi-cellular glandular hairs. In the center of the florets, a style with narrow triangular extensions grows through the five anthers that have merged into a tube. The yellowish pappus bristles are persistent, and come in two different lengths. The longer numerous, powerful, toothed, widened at the top, to 6 mm (0.24 in) long.

The flower stalk may also be cobwebby at the base, and bears two or three alternate pinnatifid leaves with irregular lobes. It is topped by a flat-headed panicle, each individual flower-head being up to in diameter. The flower-head has a single row of linear-lanceolate green bracts, eight to sixteen yellow ray-florets and a central mound of orange-yellow disk florets. Both ray and disk florets are followed by brown achenes set in tufts of white hair.

Harmonia nutans - Madia nutans is an annual herb producing a bristly, glandular stem up to about 25 centimeters tall. The inflorescence produces one or more flower heads which bend and nod as they bloom and especially as the fruit develops. The head has yellow ray florets several millimeters long, lobed at the tips and sometimes red-tinged near the bases, and yellow disc florets. The fruit is an achene a few millimeters long; those developing from the disc florets are tipped with pappi.

They are in diameter and consist of about twelve to twenty five heavenly blue ray florets that surround many yellow disc florets. Three subspecies have been recognised, that differ in width of the leaves and the involucral bracts, the size of the heads and number of ray florets and in having glandular hairs. These can be found in coastal sands and inland areas in the Western Cape and Eastern Cape provinces of South Africa. Flower heads can be found from June till October.

This is an annual herb growing a small glandular stem to a maximum height of about 20 centimeters. The thin leaves are generally lance-shaped, but the larger leaves on the lower part of the stem are usually lobed. Unlike other Layia species, which are known for their prominent white or yellow ray florets, Layia discoidea has no ray florets or real phyllaries. The flower head is a cluster of many deep yellow disc florets with a base of bractlike scales.

The head contains many disc florets and occasionally a tiny yellow ray floret, though these are usually absent.

Flora of North America: Osmadenia tenella The fruit is an achene; those arising from disc florets have pappi.

F. amoena subsp. latifolia, is a taxon which sometimes has a blue disc, but yellow discs are more commonFelicia filifolia, showing disc florets turning pinkish brown when agingThe flowerheads have two rows of involucral bracts in almost all species of the section Neodetris (the exceptions being F. cymbalariae, F. denticulata, F. dubia and F. tenera), while the rest of the species have three or four rows of bracts. The communal base (or receptacle) on which the individual florets are implanted is lightly convex and lacks a receptacular bract (or palea) at the foot of each floret. Almost always, one row of female ligulate florets surrounds a centre of several rows of bisexual disc florets.

This process was repeated up to 3 or 4 times, with a fresh batch of florets set out to dry, until at length the pungent flavor of the florets (resembling the taste of vanilla)What is described by al-Tamimi as the aroma of sap which exudes from the Storax tree (Styrax officinalis), or what is called in Arabic al-mi'ah. had been fully imparted to the sesame seeds. The dried florets were then collected and pressed with the sesame seeds in order to produce a fragrant oil. The oil was formerly stored in glassware vessels, with just enough space left at the top to be sealed with the florets of the spiny broom.

Orange Calendula officinalis at the UBC Botanical Garden Numerous cultivars have been selected for variation in the flowers, from pale yellow to orange-red, and with 'double' or 'semi-double' flowerheads with ray florets replacing some or all of the disc florets. Examples include 'Alpha' (deep orange), 'Jane Harmony', 'Sun Glow' (bright yellow), 'Lemon' (pale yellow), 'Orange Prince' (orange), 'Indian Prince' (dark orange-red), 'Pink Surprise' (double, with inner florets darker than outer florets), 'Green-heart Gold' (double, bright yellow), 'Apricot Pygmy' (double light peach) and 'Chrysantha' (yellow, double). 'Variegata' is a cultivar with yellow variegated leaves. The cultivar group 'Fiesta Gitana' has gained the Royal Horticultural Society's Award of Garden Merit.

Within the whorls of ray florets are thirty to forty yellow or orange disc florets, each star-like with five lobes, the outer circle bisexual, those at the center functionally male. The disc florets have hairs on the outside, sometimes more near the top and few or many very short glandular hairs. The style has two branches, less so in the male florets in the center of the disc. The one-seeded, indehiscent fruits (called cypselas) are about long and have an asymmetrical pear shape, flatter facing the center of the flower head, the surface hairless near its foot, but felty hairy near its tip, and without ribs, sometimes with globe-shaped glands and twisted twin hairs.

The center of diversity is in Peru. This tribe includes annual and perennial herbs, shrubs, lianas, and small trees. In general, plants of the tribe have oppositely arranged leaves and almost all have yellow ray and disc florets, while a few have red or white florets. Most contain a white latex.

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.

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.

It is one of only three species in the genus Calyptocarpus. The opposite leaves are typically long and triangular to lanceolate in shape. It bears heads of yellow flowers, with around 10–20 disc florets and 3–8 ray florets, the laminae of the latter around long. It flowers year round.

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.

Most Felicia species have a yellow disc, and blue, purple or pink, rarely white or yellow ray florets, and many are perennials or shrublets. F. heterophylla, F. josephinae and a form of F. amoena subsp. latifolia are annuals and the only taxa with blackish blue disc florets. F. amoena subsp.

The head is spherical or egg-shaped, with sometimes as many as 700 disc florets, each floret yellow near the base but purple or brown towards the tip. There are also 9-15 yellow ray florets. The species grows in ditches, fields, and streambanks.Flora of North America, Helenium campestre Small, 1903.

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.

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.

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.

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.

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.

The plant generally produces only 1-3 flower head per stem, each head with up to 55 white or pink ray florets surrounding numerous yellow disc florets. The species grows on sandy or rocky soil in sagebrush flats or conifer woodlands.Flora of North America, Erigeron nematophyllus Rydberg, Bull. Torrey Bot. Club.

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.

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.

The head is lined with layers of hairless phyllaries. It contains up to 33 coiling white ray florets and many yellow disc florets. The fruit is a cypsela with a pappus of many barbed bristles. This plant is known from dry habitat and moist spots, such as streambanks and seeps.

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.

Emilia sonchifolia completes its life cycle in approximately 90 days. There are two types of seed, which are defined by the color of the achene. The first, a female outer circle of florets of a flower head produces red and brown achenes. The second is the inner, off-white hermaphrodite florets.

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.

The chromosome number is 2n=38. The flowering season is between May and August (Central Europe). The hairy flowers are composed of yellow disc florets in the center and orange-yellow ray florets at the external part. The achenes have a one-piece rough pappus which opens in dry conditions.

Each head is lined with hairless, glandular phyllaries. The head is discoid, containing no ray florets and just a few pale purple, pinkish, or nearly white funnel-shaped disc florets with narrow lobes. The fruit is an achene with a whitish pappus of bristles which may be fused into points.

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.

Plants can form mats up to 2 m across. The flower stems reach 30 cm tall and are densely covered with white hairs. A showy solitary flower head, 3–5 cm across, is borne at the end of each stem. The numerous ray florets are white and the disc florets yellow.

The panicle is open, ovate, inflorescenced and long with branches being scabrous. Spikelets are oblong, solitary, long, and carry fertile ones that are pedicelled. Fertile florets are diminished at the apex and have 4–7 fertile florets. It also have a palea that have a ciliolate keels and hairy surface.

Infected kernels may be permeated with mycelia and the surface of the florets totally covered by white, matted mycelia.

It is distinguished from Luina by the having fewer florets per head and a racemiform, rather than corymbiform, capitulescence.

They surround a center of many disc florets. The fruit is an achene about 2 to 4 millimeters long.

There are only few Felicia species with yellow ray florets. F. mossamedensis has alternately set, entire leaves, and a single medium-size flower head with an involucre of three whorls of bracts, at the tip of the inflorescence stalk. All other species with yellow ray florets have oppositely set leaves lower and alternately set leaves nearer the top, with entire or toothed margins. In all other species with yellow ray florets, the stems carry many, small heads, each surrounded by an involucre of four worls of bracts.

The leaves have oval-shaped, dull green leaflets with woolly undersides. The plant produces large, solitary daisy-like flower-heads in shades of bright yellow and orange, although the colors may vary in cultivated specimens. Each head may be up to 8 centimeters (3 inches) across and has a dark reddish center of disc florets and an outer fringe of about 20 long ray florets. The ray florets may have dark spots near the bases, curl upwards along their edges, and close at night.

The base of each flower head is up to 1.6 centimeters (0.64 inches) wide. The head contains 8 to 21 yellow ray florets each up to 2 centimeters (0.8 inch) long. At the center are many yellow disc florets, sometimes 200 or more. The fruits are dry achenes only a few millimeters long.

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.

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.

Each head is full of yellow disc florets and most heads have several yellow ray florets, though some heads lack them. There are three varieties of this species: var. flavula occupies a long strip of mountains from Idaho to New Mexico, var. semicordata is mainly limited to the upper Midwest region, and var.

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.

Felicia annectens is an annual plant of up to about high, that is assigned to the daisy family. The lower leaves are opposite and the higher leaves alternate. The bloated involucre consists of very broad, hairless bracts. These protect up to ten, short, bluish ray florets that encircle yellow, partly sterile disc florets.

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.

Stems are hairy, ridged, and dark green. Leaves are dark green, sparsely but roughly haired, simple, with sparsely serrate margins. Flowers are heads, with black disk florets and bright orange ray florets, borne singly on stems that extend above the foliage. Stems are glabrous or moderately covered in hirsute hairs with spreading branches.

The flowers are wide with bright yellow florets that become darker with age, the corolla about long. The florets are surrounded by papery, white involucral bracts long with jagged edges. Flowering mainly occurs from November to April and the cypselas are linear, wrinkled and dark brown with an awn up to long.

The main branches carry 1–5 fertile spikelets and are scaberulous. Spikelets are oblong, solitary, are long and have fertile spikelets that are pediceled. The pedicels are pubescent and hairy above. The spikelets have 2-3 fertile florets which are diminished at the apex while the sterile florets are barren, cuneate, and clumped.

The pedicels are curved, filiform, pubescent, scabrous, and hairy above. Besides the pedicels, the spikelets have 2 fertile florets which are diminished at the apex. The sterile florets are also present and are long, barren, elliptic, and clumped. Its rhachilla have an elongated plant stem which goes between the glumes and is .

The leathery, pointed leaves are up to 5 by in size. The flower head is turbin-shaped and has several ray florets and disc florets surrounded by 40 to 60 resinous phyllaries. The fruit is a few millimeters long and is tipped with a brown pappus about half a centimeter long.Hazardia orcuttii.

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.

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.

The plant generally produces only 1 flower head per stem. Each head has 25–60 blue, pink or white ray florets surrounding numerous yellow disc florets. The species grows in dry places with silty or gravelly soil, sometimes high in salt, selenium, or gypsum.Flora of North America, Erigeron pulcherrimus A. Heller, 1898.

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.

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.

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.

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.

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.

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.

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.

The flower head opens into a face of up to 10 yellow ray florets. There are no disc florets. The fruit is a narrow achene 7 or 8 millimeters long tipped with a pappus of white hairlike bristles.Flora of North America, Longleaf or tapertip hawksbeard, Crepis acuminata Nuttall, Trans. Amer. Philos. Soc.

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.

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.

The spikelets are made out of 4–5 fertile florets which are oblong and long. Fertile spikelets are pediceled, the pedicels of which are filiform. Florets are diminished at the apex and are bisexual. Its lemma have rugulose surface and obtuse apex while fertile lemma is being coriaceous, elliptic, keelless, and is long.

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.

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.

The main branches are appressed and carry oblong and solitary spikelets that are long. They are comprised out of 3–6 fertile florets which are diminished at the apex. It sterile florets are barren, oblong, growing in a clump and are long. The species' fertile lemma is chartaceous, keelless, oblong and is long.

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.

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.

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.

The inflorescence is usually a solitary flower head with a bell-shaped base up to 1.5 centimeters wide. It is lined with green or yellowish phyllaries with white edges. It contains several yellow ray florets and many disc florets. The fruit is an achene at least a centimeter long including its pappus.

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.

It has often been misidentified as Eurybia spectabilis and was declared a separate species quite recently in 1988.Lamboy, W. F. 1988. Systematic Botany 13(2): 192–194 The flowers emerge in the late summer and persist into the fall bearing cream- coloured ray florets that become purple and yellow disc florets.

The fruit is an achene; fruits from the disc florets are coated in white hairs and have a white pappus.

The flower head is 3 to 4 cm long, the florets are red/purple. They flower from June to September.

The spreading branches of the inflorescence hold oval-shaped to nearly round spikelets each with generally fewer than six florets.

The fruit is an achene; fruits on the disc florets often have a thick pappus of white or brown bristles.

Felicia is a genus of small shrubs, perennial or annual herbaceous plants, with 85 known species, that is assigned to the daisy family (Compositae or Asteraceae). Like in almost all Asteraceae, the individual flowers are 5-merous, small and clustered in typical heads, and which are surrounded by an involucre of, in this case between two and four whorls of, bracts. In Felicia, the centre of the head is taken by yellow, seldomly whitish or blackish blue disc florets, and is almost always surrounded by one single whorl of mostly purple, sometimes blue, pink, white or yellow ligulate florets and rarely ligulate florets are absent. These florets sit on a common base (or receptacle) and are not individually subtended by a bract (or palea).

Its flower-like florets are open to about in diameter. Three bicolored varieties are planted for different harvest times: for early-season, mid-season, and late-season harvests. Decorative florets are optimized when planted in fertile soils with a pH above 6.5-7.5. In dry weather, the plants require careful fertilization and regular irrigation.

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.

Their alternate (rarely opposite) leaves are green, but some variegated forms exist. The leaf form is lanceolate. The leaf margin is entire, but hardy types are toothed. The daisy- like composite flower consists of disc florets and ray florets, growing singly at the end of branches or sometimes in inflorescences of terminal corymbose cymes.

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.

The head is spherical or hemispherical, with sometimes as many as 800 disc florets, each floret yellow near the base but purple or brown or yellow towards the tip. There are also 9-24 yellow ray florets. The species grows in bogs, swamps, and other wet places.Flora of North America, Helenium brevifolium (Nuttall) Alph.

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.

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.

The spikelets themselves are made out of 2–3 fertile florets are oblong and are long. Fertile spikelets are pediceled, the pedicels of which are ciliate, flexuous, hairy and are long. Florets are diminished at the apex. Its lemma have scabrous surface and emarginated apex with fertile lemma being coriaceous, keelless, oblong, and long.

The solitary flower head has 5 to 13 yellow ray florets and up to 90 yellow or purple-tinged disc florets. The fruit is a cypsela which may be over a centimeter long including its pappus of bristles. The plant grows on grasslands and playas. It flowers in summer and fall, especially after rain.

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.

The top part of the stem is occupied by a narrow inflorescence. The branches may be pressed against the main stem, or they may branch outward. The flower head is up to about 4 centimeters (1.6 inches) wide when open, with rectangular pale yellow ray florets with toothed tips. There are no disc florets.

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.

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.

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.

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.

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.

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.

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.

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.

The plant grows up to 40 cm in height, and about the same in width. The bright green lobed leaves are 3–7 cm long and 1–2 cm wide. The flowers are terminal on 20 cm scapes; the ray florets are white, the disc florets yellow, with a corolla diameter of 2.5–4 cm.

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.

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.

The species grows to 0.5 metres high and has grey-green leaves that are about 18mm long and 10 mm wide. It has "daisy" flowerheads comprising mauve ray florets and yellow disc florets. The peak flowering period in the species native range is between June and July although flowers continue to appear until March.

The common base of the florets (called receptacle) is set with bristles. The yellow corolla of the aerial ligulate florets is 1¼–1½ mm long, while the tube carries long, straight, soft hairs (or pilose). The tube that is formed by the five fused anthers is 2–3 mm long, the tip squared-off.

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.

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.

Biota of North America Program 2014 county distribution map Arnica discoidea is a rhizomatous perennial herb producing a hairy, glandular stem 20 to 60 centimeters tall. There are several pairs of toothed oval to spade-shaped leaves on long petioles around the lower half of the stem. The inflorescence contains a few to many flower heads which are coated with glandular hairs. Each head contains only disc florets, but some of the florets around the edge can be expanded and resemble ray florets, making identification of the plant by its floral characteristics rather difficult.

These encircle numerous disc florets, which are partly sterile, partly fertile, and have an up to long yellow corolla. In the center of each corolla are five anthers merged into a tube, through which the style grows when the floret opens, hoovering up the pollen on its shaft. At the tip of both style branches is a triangular appendage. Pappus is missing at the ray florets, but surrounding the base of the corolla of the disc florets are six to eight, up to 2 mm (0.1 in) long, quickly shunted pappus bristles.

Along the margin of the flower head are many female ray florets that have yellow straps of about long and wide radiating out. In the center of the head are many yellow, bisexual disc florets of about long. In the center of the corolla of each disc floret are five anthers merged into a tube, through which the style grows when the floret opens, hoovering up the pollen on its shaft. The style in both ray- and disc florets forks, and at the tip of both style branches is a triangular appendage.

About twenty female ray florets have blue violet straps of about long and 1 mm (0.04 in) wide. In the center of the head are many yellow, bisexual disc florets of about 2 mm (0.1 in) long. In the center of the corolla of each disc floret are five anthers merged into a tube, through which the style grows when the floret opens, hoovering up the pollen on its shaft. The style in both ray- and disc florets forks, and at the tip of both style branches is a broadly triangular appendage.

Leaves on the lower end of the stem are round/oval shape, 4 to 16 cm in height, and 1 to 8 cm in width. The leaves on the upper end of the stem are smaller than the leaves on the lower end of the stem and are often coarsely toothed. The inflorescence is often dichotomous, with 3 to 6 stalked flower heads and whorled bracts below. The urn-shaped flower head has 30-60 florets per head, the outer ray florets are female, and the inner disc florets are bisexual.

These bracts are all equal in length at about 3 mm (0.14 in) long, the outer lance-shaped, about wide, the inner inverted egg-shaped, about 1 mm wide, with a papery edge, all covered in bristles and glandular hairs. Each flower heads contains about twelve ray florets with a blue strap of about long and 1 mm (0.06 in) wide. These encircle more numerous, yellow disc florets of up to 2 mm (0.1 in) long, those next to the ray florets bisexual and those in the center male.

Hemizonia conjugens. Jepson Manual. Disc achenes germinate sooner than those from ray florets. Many achenes drop into the soil seed bank.

The disc florets are yellow with purple anthers. The fruit is a hairy achene with a pappus of many white scales.

The flower head is urn-shaped and covered in phyllaries. The head opens slightly at the top, revealing many yellow disc florets and sometimes one or more tiny yellow ray florets, although these may be absent. The fruit is a long, thin achene coated in ashy gray hairs and tipped with a pappus of long, white bristles.

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.

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.

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.

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.

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.

They measure up to long. The inflorescence is a flower head lined with green, sometimes purple-speckled, phyllaries and containing many yellow ray florets and no disc florets. The fruit is a cylindrical achene up to long not including the large pappus of up to 30 silvery white bristles which may be an additional in length.

Felicia filifolia is a Southern African member of the family Asteraceae. It is a hardy, sprawling shrub growing to about 1 metre tall. Leaves are narrow (filifolia = threadlike leaves) and clustered along the twigs. When blooming it is densely covered in flowerheads with ray florets that are pink-mauve to white and disc florets that are yellow.

Capitulum base urceolate to globose, somewhat thickened, glossy. Involucre about three-quarters the corolla length. Involucral bracts nine, lanceolate, 9–11 mm long, green, sometimes turning rosy brown, margins purple, sparsely pilose when young, glossy and glabrous when mature. Heads up to 1.4 cm length, with up to 75 florets per each head, florets much exserted.

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.

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.

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.

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.

The main panicle branches are indistinct and almost racemose. Spikelets are solitary with fertile spikelets being pedicelled, pedicels of which are filiform and puberulous. They also have 2 fertile florets which are diminished at the apex and which are also cuneated and are long. Glumes are reaching the apex of florets and are thinner than lemma.

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.

They also have 2 fertile florets which are diminished at the apex and which are also elliptic and are long. The callus of the floret is pubescent and also has scaberulous rhachilla. The fertile lemma is chartaceous, oblong, is long and wide. Sterile florets are barren and grow in a clump, which is also cuneated and is in length.

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.

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.

Leaves are very narrow, up to 3 cm (1.2 inches) long. The plant produces only one flower head per branch, each head containing about 20 red disc florets, sometimes with no ray florets, other times with 5-8 yellow rays.Gray, Asa. 1852. Smithsonian Contributions to Knowledge 3(5): 106 description in parallel English and LatinGray, Asa. 1852.

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.

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.

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.

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.

The leaves decrease in size up the stem, the upper leaves up to long, lack a petiole and are deeply toothed. The plant bears up to three "flowers" like those of a typical daisy. Each is a "head" or capitulum wide. Each head has between fifteen and forty white "petals" (ray florets) long surrounding the yellow disc florets.

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).

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.

The outer bracts are wide, narrowly inverted lance-shaped with rough and sometimes also glandular hairs. The inner bracts are wide, inverted lance-shaped, with dry papery edges. The approximately twelve, bright blue, female ray florets have a strap of about long and wide. These surround many bisexual, disc florets with a yellow corolla of about long.

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.

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.

Leaves are alternate and stems are typically upright. Blooming starts in late spring and will continue into October depending on the location and growth conditions for the plant, particularly nutrient level in the soil. Disk florets are light yellow and ray florets are either light purple or white. Fruits of Indian aster are small and dark.

The largest heads may be up to 5 centimeters (2 inches) in diameter. They are packed with white or lavender disc florets but no ray florets. The fruit is a flat brown achene with a long pappus which may reach 2 centimeters long. Unlike many other thistles, this species tends not to be a troublesome noxious weed.

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.

Most of the leaves are clustered around the base of the stems. They are fan-shaped, narrowed at the base, triangular or 3-lobed at the far end. Each stem usually produces only 1 flower head per stem. Each head contains as many as 70 white, pink, or lavender ray florets surrounding numerous yellow disc florets.

The leaves and the stem are covered with hairs. The plant generally produces only 1 flower head per stem, each head with up to 60 purple, blue, white ray florets surrounding numerous yellow disc florets. The species grows on rockslides in alpine tundra and coniferous forests at high elevations.Flora of North America, Erigeron leiomerus A. Gray. 1884.

The plant generally produces only one flower head per stem, each head with up to 68 purple or lavender ray florets each measuring 8-11 millimeters (0.3-0.4 inches) long. These surround numerous yellow disc florets in the center.Flora of North America, Erigeron lackschewitzii G. L. Nesom & W. A. Weber, Madroño. 30: 245, fig. 1. 1983.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The staminate florets have stamens with the filaments fused into a tube and the anthers free but closely arranged in a ring. The corolla is about long and white to pale yellow. The pistillate florets have stamens with the filaments into a tube and the anthers free but closely arranged in a ring. The corolla is sometimes absent.

Botanical Magazine 61: plate 3295 and 2 subsequent text pages full-page color illustration, diagnosis in Latin, commentary and figure captions in English Helianthus speciosus has 3-lobed leaves and a large flowering head with red ray florets and yellow disc florets. The plant grows to a height of approximately 18 inches (1 1/2 feet or 45 cm).

Sedges' reproductive shoots are where their inflorescences grow. Specimens are typically between 10 and 30 cm tall but tend toward the smaller sizes as the sister species, C. capitata, is usually taller. A spike will be made up from many florets. Basal florets consist of a pair of brown glumes (two sterile bracts) which subtend the perigynia.

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.

They appear in clusters of 2 to 6 which grow upward from various points on the main stem to approximately the same height with the outer flowers opening first. The phyllaries are purplish. There are no ray florets and the disc florets are purple or mauve colored. ;Fruits: Achenes 3 to 4 millimeters long, ribbed and not hairy.

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.

They are arranged in opposite pairs, mostly near the base of the stem. The blades are coated densely in short curly hairs, some glandular. The inflorescence is a solitary flower head or cluster of a few heads. The head contains up to 12 yellow ray florets up to 2.5 centimeters long with many yellow disc florets at the center.

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.

The plant is a herbaceous perennial that grows into a small bush, up to high, with pungently-scented leaves. The leaves are light yellowish green, variously pinnatifid. The conspicuous daisy-like flowers are up to 20 mm across, borne in lax corymbs. The outer, ray florets have white ligules and the inner, disc florets are yellow and tubular.

In its two-stage preparation, the first stage requires preparing a spiced corn flour batter, dipping cauliflower florets in it and deep frying them. In the second stage, the deep fried florets are sautéed with chopped onion, bell pepper, garlic, etc., in soy and chili sauce. There are two different variants of gobi Manchurian, dry and with gravy.

It is a biennial or perennial, blooming only once before dying. Leaves are toothed or shallowly lobed, with fine spines along the edge. Sometimes there is only one flower head but more often more, with pink or purple (rarely white) disc florets but no ray florets. The species grows in prairies, open woodlands, and disturbed sites.

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.

The inflorescence is a solitary bell-shaped, sunflower-like flower head sometimes tucked amongst the uppermost leaves. The head contains about 13 yellow ray florets which may be 2 to 3 centimeters long or more. At the center are yellow disc florets. The fruit is an achene about 7 millimeters long which does not have a pappus.

The leaves have lance-shaped or oval blades up to 45 centimeters long. The inflorescence is usually a solitary flower head or occasionally a cluster of 2 or more. The head has lance-shaped leaflike phyllaries at the base. It contains up to 21 yellow ray florets each up to 5 centimeters long and many yellow disc florets.

The bell-shaped involucre is lined with pointed phyllaries that curl back as the head matures. The head is discoid, with no ray florets but several tubular golden disc florets with raylike lobes. The plant blooms in July through November.Golden Gate National Recreation Area: 2008 Endangered Species Big Year The fruit is an achene with a whitish pappus.

Each spikelet is 3-5mm long and contains 5-10 individual florets. The lemmas are 2.9-4mm long. G. canadensis hybridizes with Glyceria grandis to form the hybrid Glyceria canadenis × grandis. This hybrid is very similar to G. canadensis but with spikelets containing between 3-6 florets as opposed to 5-10 found in G. canadensis.

The inflorescence is generally a single flower head, or sometimes more than one. The head has a bell-shaped base with curving phyllaries which are green to tan. The head contains a few white ray florets and has white disc florets at the center. The fruit is a hairy achene which is roughly a centimeter long including its pappus.

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.

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.

The yellow ray florets are each about half a centimeter long.Senecio ertterae. Flora of North America. Flowering occurs in July through October.

Each bract often has a red midstripe. The head bears rings of ray florets, usually yellow to pale yellow, but sometimes white.

The fruit is an achene. The achenes arising from the disc florets have pappi of white scales.Deinandra conjugens. Flora of North America.

It contains several hairy yellow disc florets. The fruit is an achene tipped with a large pappus of over 100 long, fine bristles.

It produces numerous yellow flower heads containing both disc florets and ray florets.Flora of North America, Bidens amplissima Greene, Pittonia. 4: 268. 1901.

The disc florets at the center are yellow. The fruit is a club-shaped achene about 3 millimeter long with a small pappus.

They are 40mm wide, consist of more than one individual flowerheads (a diagnostic character), of which the outer ones have visible ray-florets.

Stem is thin. Leaves are highly dissected. Flower heads are yellow, each containing 6 ray florets and 11 disc florets.Klatt, Friedrich Wilhelm 1889.

The slender rachillas are terete and disarticulate above the glumes and between the florets. The narrow lemmas have three nerves and two lobes.

When the calcite was dissolved with dilute sulfamic acid, it was noted that white semitranslucent florets of datolite occurred on the crystalline copper.

Warionia and Gundelia share a thistle-like appearance, anastomosing latex- ducts, floral heads that only contain disk florets, spurred anthers, and styles with branches and highest part of the scape covered with long hairs. Gundelia however is herbaceous, has monofloral primary flowerheads combined into groups of five to seven, the centre floret hermaphrodite, the marginal florets functionally male, and those groups combined in ovoid spiny florescences at the end of the stem, and spiny leaves, florets dull yellow to dull purple on the inside, purple to rusty on the outside. Warionia is a shrub, has many dandelion-yellow florets in each flowerhead, single or with two or three together at the end of the branches, the leaves dentate but not spiny. Scolymus is also a thistle-like herbaceaceous perennial with anastomosing latex-ducts, related to Gundelia, but it has many yellow, orange or white ligulate florets in each flowerhead, which are arranged with many in a spike-like inflorescence, or with a few at the end of the stems.

More than 20 species names have been created in the genus, most of them now transferred to other genera (Ericameria, Xylothamia, Solidago, Gundlachia). Only one remains, Chrysoma pauciflosculosa, native to the southeastern United States (Florida, Georgia, Alabama, Mississippi, South Carolina, North Carolina).Biota of North America Program 2013 county distribution map Chrysoma pauciflosculosa is a branching, evergreen shrub up to tall, with resin but no hairs. Flower heads are yellow, in dense, flat-topped arrays of many small heads, sometimes with no ray florets but sometimes with 2 or 3 ray florets, plus 2-5 disc florets.

The approximately seven, deep blue ray florets surrounding the disc have a hairy tube, at the top changing into a spreading blade of about 15 mm (0.6 in) long and 5 mm (0.2 in) wide. The dry, one-seeded, indehiscent fruits (or cypselae) of the ray florets lack pappus. The many blackish blue, rarely brown-red and yellow, disc florets are bisexual and about 5 mm (0.20 in) long. Like in all Asteraceae, the five anthers have merged into a hollow tube through which the style grows when the floret opens, while gathering the pollen on its shaft.

The one-seeded indehiscent fruits are not embedded in the common base of the florets receptacle, is inverted cone-shaped or oblong, has three or four ribs, is at least 3 mm long, and half as wide, with a smooth surface or with tiny wrinkles and hearless. At the tip is one row of scales (the pappus) of ½–1 mm long, that are free in the outer florets, but merged at their foot in disc florets. These scales are split into twelve to fifteen standing, awl-shaped lobes, with a long, narrow tip, divided in side-lobes and without hair.

The sterile cyselas are about 11 mm long, hairless except for one whorl of pappus hairs of about 5 mm at the tip. The female florets are purplish in color, tube-shaped, densely covered in hard white hairs, with a tube of about 7 mm long and lobes of less than ¼ mm. In the female florets, the stigmas have two lobes, the lobes being exserted inside the corolla tube. The cyselas in the female florets are slender, angular cylindrical, 5–6 mm, set with dense bristles and two whorls of about fifty rough, purple pappus hairs of about mm.

Ray florets are always highly zygomorphic and are characterised by the presence of a ligule, a strap-shaped structure on the edge of the corolla tube consisting of fused petals. In the Asteroideae and other minor subfamilies these are usually borne only on florets at the circumference of the capitulum and have a 3+2 scheme – above the fused corolla tube, three very long fused petals form the ligule, with the other two petals being inconspicuously small. The Cichorioideae has only ray florets, with a 5+0 scheme – all five petals form the ligule. A 4+1 scheme is found in the Barnadesioideae.

It is topped by a purple style that is circular in cross-section, ending in two pointy, recurved, flattened, line-shaped branches of about 1 mm (0.04 in) long, its outer margins functioning as stigma. In the central florets the style ends in triangular grainy branches. The pappus on each of the cypselas of the tube florets consists of one row of about 25 spreading, short, stiff, hooked bristles of 3–4 mm (0.12–0.16 in) long but feathery near middle, and merged at their base, forming a short, white collar. The cypselas are identical to those of the ray florets.

This common weed can grow and produce flowers on plants that range from 4 inches (10 centimeters) to 36 inches (90 cm) tall. The rhizome is short and stout. The broadly elliptic leaves can be up to 5 inches (12 centimeters) long and taper with teeth towards the base. Each flower head has 40-80 ray florets but no disc florets Bracts surround the flower head; the receptacle (basal part of the flower on which the florets are attached) is flat and naked; heads tend to start together then become somewhat solitary on long leafless stems.

Calflora taxon report, Calycadenia mollis A. Gray, soft calycadenia, soft western rosinweed Calycadenia mollis is an annual herb producing an erect, hairy stem up to 90 centimeters tall. The leaves are linear in shape and up to 8 centimeters long, the longest ones often toward the middle of the stem. The inflorescence bears several long clusters of small, very glandular flower heads, each of which has one or more white, yellow, or red triple-lobed ray florets around a center of disc florets. The fruit is an achene; those arising from the disc florets have a pappus of about eight scales.

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.

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.

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.

The flowers are yellow, daisy-like in dense capitula in diameter, with central disc florets surrounded by a ring of 10–13 ray florets, and enclosed in a common whorl of bracts at the base of the capitulum. The seeds are cylindrical achenes.Interactive Flora of NW Europe: Senecio cineraria Blamey, M. & Grey-Wilson, C. (1989). Flora of Britain and Northern Europe.

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.

The erect stems are up to 15 centimeters (8 inches) in height and each hold a single flower head less than a centimeter (0.4 inches) wide. The head has a center of yellow disc florets and a fringe of 20-25 ray florets which may be blue, purple, or pink.Flora of North America, Erigeron elegantulus Greene. Volcanic daisy Greene, Edward Lee 1895.

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.

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.

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.

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.

Munz' tidytips, Layia munzii, is an annual herb producing an erect or trailing glandular stem up to about half a meter tall. The leaves are linear to lance-shaped and sometimes lobed. The flower head has a base of rough-haired, glandular phyllaries. The face has a fringe of yellow ray florets tipped with white and yellow disc florets with purple anthers.

The disc florets are pseudo-bisexual and come in several colors such as blue, yellow and purple. The hardy types usually show a dark blue center in the disc until the yellow pollen is shed. The ray florets are female and are found diverse colors such as white, cream, pink, purple, mauve to yellow. Some cultivars have "spooned" petals such as "Pink Whirls".

The hairy, glandular stem grows from a woody caudex and branches several times. The green leaves are up to about a centimeter long and are glandular and bristly. The tiny flower head is 1 or 2 centimeters wide with white or pinkish ray florets around a center of yellow disc florets. Each head has a base of pointed purple-tipped greenish phyllaries.

The flower head is large with woolly lance-shaped phyllaries each over a centimeter (0.4 inches) long. The center of the head is packed with a large number of tiny deep yellow disc florets. This is surrounded by 22–40 yellow ray florets, each ray up to two centimeters (0.8 inches) long.Flora of North America, Hulsea californica Torrey & A. Gray . 1858.

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.

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.

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.

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.

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.

One group which is well-supported by molecular data is subgenus Dracunculus. It consists of 80 species found in both North America and Eurasia, of which the best-known is perhaps Artemisia dracunculus, the spice tarragon. Dracunculus Besser. has historically been characterized morphologically by a heterogamous flower head with female outer florets and hermaphrodite central florets, but with a female-sterile, glabrous receptacle.

The head is very nearly spherical or egg-shaped, nearly covered with as many as 700 disc florets, each floret yellow near the base but purple towards the tip. There are also 12-18 ray florets, yellow, sometimes with purple streaks. The species grows along the edges of wet places in pine forests.Flora of North America, Helenium arizonicum S. F. Blake, 1937.

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.

Carlquistia muirii is a rhizomatous perennial herb forming clumps or mats of stems with hairy green pointed leaves up to about 4 centimeters long. Leaves are arranged oppositely on the lower stem, and alternately higher up. The inflorescence is usually made up of a solitary glandular flower head on an erect stalk. The head contains many yellow disc florets but no ray florets.

Phalacroseris is a perennial herb with fleshy herbage growing from a woody caudex. The leaves are located around the base of the plant, growing up to 20 centimeters long and linear to somewhat lance-shaped. The inflorescence reaches up to 35 centimeters tall and is topped with a head filled with many golden ray florets. There are no disc florets.

The herbage is hairy to bristly and often glandular. The flower heads are often borne in wide arrays or spikelike inflorescences; B. laxa may have solitary heads. The hairy, glandular phyllaries grow close to the ray florets and can remain attached to the fruits they bear. The deeply lobed ray florets are usually whitish, often with red or purple nerves along the undersides.

Gutierrezia petradoria is a perennial herb to woody subshrub, growing up to in height. 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. The head contains 5-13 disc florets with 4-10 yellow ray florets around the edge.

The pedicels are ciliate, curved, filiform, and hairy. Besides the pedicels, the spikelets have 2 fertile florets which are diminished at the apex and have pubescent callus as well. The sterile florets are also present and are long, barren, elliptic, and clumped. Both the upper and lower glumes are hairy on the bottom, keelless, membranous, ovate and have puberulous surfaces.

The inflorescence is made up of one or two flower heads, sometimes more. Each flower head is somewhat cylindrical or bullet-shaped, measuring up to about a centimeter long. The head is discoid, containing only disc florets and no ray florets. It is lined with a series of many phyllaries coated thinly in glandular hairs and often streaked with purple-red coloration.

The stem and leaves are green or purple-tinged. The inflorescence is a single flower head or a cluster of up to 4 heads. Each head has a lining of pointed phyllaries which are green with orange midnerves. It contains up to 33 white, pinkish, or purple ray florets each about a centimeter (0.4 inches) long, surrounding numerous yellow disc florets.

The stems are reddish and generally glandular. The small leaves are mostly located toward the base of the stem and are finely divided into linear lobes. The spreading inflorescence produces several flower heads, each lined with hairy, glandular phyllaries. Each head has a fringe of rounded yellow ray florets about half a centimeter long and a center of yellow disc florets.

Pale fleabane Erigeron pallens is a tiny, unbranching perennial herb rarely more than 10 centimeters (4 inches) tall, producing a woody taproot. The leaves are covered with wool. The plant generally produces only 1 flower head per stem, each head with 50–60 white, pink, or purpleray florets surrounding numerous yellow disc florets. The plant grows on rocky slopes in sparsely vegetated slopes.

Leaves are narrow, up to 60 mm (2.4 inches) long but less than 2 mm (0.08 inches) across. The plant sometimes produces only one flower heads per stem, sometimes groups of as many as 5. Each head contains as many as numerous yellow disc florets but no ray florets. The species grows in open coniferous woodlands, frequently in serpentine soil.

Erigeron fukuyamae is an Asian species of flowering plants in the daisy family. It has been found only in alpine meadows at high elevations in Taiwan in East Asia. Erigeron fukuyamae is a perennial, clump-forming herb up to 30 cm (12 inches) tall, forming short rhizomes and a branching underground caudex. Its flower heads have red ray florets surrounding yellow disc florets.

Erigeron himalajensis is an Asian species of flowering plants in the daisy family. It grows on stony slopes and the margins of forests in the mountains of Afghanistan, Tibet, Sichuan, and Yunnan. Erigeron himalajensis is a perennial, clump-forming herb up to 60 cm (5 feet) tall, forming woody rhizomes. Its flower heads have pink or purple ray florets surrounding yellow disc florets.

Erigeron krylovii is an Asian species of flowering plants in the daisy family. It grows in grasslands and in alpine meadows in Siberia, Xinjiang, and Kazakhstan. Erigeron krylovii is a perennial, clump-forming herb up to 60 cm (5 feet) tall, forming woody rhizomes and a branching underground caudex. Its flower heads have pink, thread-like ray florets surrounding yellow disc florets.

Erigeron kunshanensis is a Chinese species of flowering plants in the daisy family. It grows on rocky slopes and in alpine meadows at high elevations in the province of Yunnan in southwestern China. Erigeron kunshanensis is a perennial, clump-forming herb up to 20 cm (8 inches ) tall, forming thick, woody rhizomes. Its flower heads have purple ray florets surrounding yellow disc florets.

Erigeron lachnocephalus is an Asian species of flowering plants in the daisy family. It grows on rocky slopes and in alpine meadows at high elevations in Xinjiang, Kazakhstan, and Uzbekistan. Erigeron lachnocephalus is a perennial, clump-forming herb up to 15 cm (6 inches) tall, forming a branching, woody caudex. Its flower heads have pink or lilac ray florets surrounding yellow disc florets.

Erigeron pseudoseravschanicus is an Asian species of flowering plants in the daisy family. It grows on alpine meadows and forest margins in Xinjiang, Kazakhstan, Uzbekistan, and Siberia. Erigeron pseudoseravschanicus is a perennial, clumping-forming herb up to 60 cm (5 feet) tall, forming a thick woody rhizomes. Its flower heads have pink or lilac ray florets surrounding yellow disc florets.

Botanical illustration of S. boreale Symphyotrichum boreale is a perennial herbaceous species between 13 and 85 cm tall. The leaves, stem, and overall plant form are slender, and it produces long rhizomes. The inflorescence consists of one to several composite flowers. The ray florets are white to pale purple and the disc florets are cream or pale yellow-coloured, becoming purplish.

The individual flower heads droop at the end of a long or longer stalk. The whorl of bracts at the base of the flower head (involucre) is long. The disk is composed of 8 to 20, usually no more than 10, male (staminate) florets in the center and usually 5 female (pistillate) florets around the margin. The flowers bloom from August–October.

Flowering occurs from August to November, with the lower leaves often withering by the time of flowering. The abundant flower heads are showy with yellow disc florets at the center and ray florets that range from a deep purple or rose pink to rarely white. Many cultivars have been developed which may differ from the characteristics listed above in various ways.

The flower head has a base made up of three layers of pointed phyllaries coated in gray or silvery hairs. The head has a fringe of many yellow ray florets each up to 5 centimeters (2 inches) long, surrounding many small disc florets of the same color. The fruit is an achene about a centimeter long with a small pappus.

Most of the leaves are on the stem rather than clumped together close to the ground, each leaf is up to 9 cm (2.7 inches) long. One plant usually produces 1-9 flower heads. Each head has with 14–20 yellow ray florets surrounding 40 or more red or purple disc florets. The plant grows in dry, alkaline desert soils.

There are only a few small leaves on the stem, the only species in Florida with that characteristic. One plant usually produces only one flower head, rarely 2 or 3. Each head has with 12-17 yellow ray florets surrounding 100 or more yellow disc florets. The plant grows in wet sites in prairies in coastal beach sands at low elevations.

The plant grows up to 2–4 m in height. The leaves are alternate, 4–10 cm long, 1.5–3.5 mm wide, biscuit-coloured, woolly below and glossy above. The flowers have about 12 white ray florets, 6 mm long; there are about 8 disc florets, 6 mm long and pale yellow. The fruit is brown and 5 mm long.

The plant grows up to 25 cm in height and is rarely branched below the inflorescence. The leaves are alternate, 5–6 cm long, 1 cm wide. The flowers occur in cymose inflorescences; they have 4–7 yellow outer florets with 6–8 funnel-shaped disc florets. The fruit has short hairs between brown ribs and is 2.5–3 mm long.

A.chamissonis Frigid arnica in the Alaskan Interior Arnica plants have a deep-rooted, erect stem that is usually unbranched. Their downy opposite leaves are borne towards the apex of the stem. The ovoid, leathery basal leaves are arranged in a rosette.Flora of North America, Arnica Linnaeus They show large yellow or orange flowers, wide with long ray florets and numerous disc florets.

Each head has a bell-shaped base about half a centimeter (0.2 inches) long which is lined with phyllaries with pointed, darkened tips. The head contains 8-15 yellow ray florets just a few millimeters long, surrounding 20-60 disc florets. The fruit is an achene with a pappus of bristles.Flora of North America, Solidago spithamaea, M. A. Curtis ex A. Gray, 1842.

The stems are mainly erect and are coated in woolly fibers and resin glands. The abundant hairy, glandular leaves are lance-shaped to oval, pointed, and smooth or toothed along the edges. They are up to 5 centimeters (2 inches) long. The inflorescence holds several discoid flower heads which are packed with long yellow disc florets but no ray florets.

It is a perennial herb growing to a maximum height near from a long rhizome. The thin brown stems are covered in rough hairs and resin glands. The leaves are a few centimeters long, linear to oval in shape, and often hairy. The glandular inflorescence holds several flower heads containing many violet ray florets around a center of long yellow disc florets.

Harmonia doris-nilesiae is an annual herb growing up to about 26 centimeters tall, its upper branches bristly and glandular. The bristly, toothed leaves are up to 4 centimeters long. The inflorescence bears several flower heads on long, thin peduncles. Each head has yellow disc florets tipped with yellow anthers and 4 to 8 bright yellow ray florets each a few millimeters long.

This perennial herb or subshrub grows 20 to 40 centimeters tall. The narrow- lobed leaf blades are borne on petioles up to 3 centimeters long. The flower heads contain several yellow ray florets each about half a centimeter long and many yellow disc florets in the middle. The plant grows in dry, rocky canyon habitat, anchoring in rock cracks and crevices.

The flower shoot is a tall, broad cone, 60 centimetres (about 2 feet) tall, and 40 centimetres (16 inches) wide, with the flower heads horizontal. Each floret is about 25 millimetres (one inch) long, and the compound flower is made up of 11 to 15 of the petal-like ray florets, with thirty to fifty "disc" florets in the centre.

Gray) PetrakBiota of North America Program 2014 county distribution map Cirsium wheeleri is a perennial herb up to 60 cm (2 feet) tall with a large taproots. Leaves have slender spines. There are one or more flower heads, each with white, pink, or pale purple disc florets but no ray florets. The plant grows in mountain meadows and open conifer forests.

The upper leaves are up to 5 centimeters long, narrow and sometimes toothed or lobed; the lower leaves are longer and wither early. The flower heads appear singly or in small clusters. Each head is lined with woolly phyllaries. The head is discoid, containing no ray florets but many funnel-shaped pinkish, lavender, or light bluish-purple disc florets with large lobes.

Flowers of M. recutita: A. Yellow disc florets B. White ray florets Chamomile Matricaria chamomilla is a member of the Asteraceae family, native to southern and eastern Europe. Today the plant can be found on all continents. It has a branched, erect and smooth stem, which grows to a height of . The long and narrow leaves are bipinnate or tripinnate.

There is a basal rosette of leaves and an erect, winged stem lined with lance-shaped leaves that become smaller toward the top of the stem. The inflorescence has several flower heads, each with a spherical disc covered with disc florets and lined with yellow ray florets just over a centimeter (0.4 inches) long. Blooming occurs in July through October.

The inflorescence produces one or more large sunflower-like flower heads at the top of the hairy stem. The head has narrow, hairy phyllaries at the base. It contains up to 21 yellow ray florets each up to 4.5 centimeters long and many yellow disc florets. The fruit is an achene which may be nearly 2 centimeters long including its pappus.

The flower heads are yellow and have both ray florets and disc florets. Its rounded clumps are scattered about dry, rocky areas.Flora of North America Vol. 20 Page 186 Amphipappus Torrey & A. Gray The species takes its scientific epithet, fremontii from John C. Frémont, and is known commonly by the names chaffbush or eytelia (in honor of artist Carl Eytel).

The lower leaves have stalks, whereas the upper leaves are attached directly to the stem. The flower heads are cylindrical and usually have 8 to 15 yellow ray florets ("petals") although some are rayless. The ray florets vary in length but are most commonly 4 to 7 mm long. The pollen grains are 30 to 36 micrometres across and usually have 4 pores.

The pink flowering Crepis rubra, new for the Bulgarian flora. Phytologia Balcanica 15(1):59-62. includes photos and Bulgarian distribution map Crepis rubra is an annual herb up to 40 cm (16 inches) tall. Each plant will usually produce only one or two flower heads, each with as many as 100 pink or red ray florets but no disc florets.

Each plant can have as many as 20 flower heads, each with up to 70 ray florets but no disc florets. It grows on hillsides and in sandy clearings.Flora of North America, Beaked hawksbeard Crepis vesicaria Linnaeus, Sp. Pl. 2: 805. 1753. A prominent plant, Crepis vesicaria stands erect, with many branches, each ending in its own dandelion-like flower.

Symphyotrichum chilense is a rhizomatous perennial herb growing to heights between 40 centimeters and one meter. The hairy leaves are narrowly oval-shaped, pointed, and sometimes finely serrated along the edges. The inflorescence holds aster flower heads with centers of yellow disc florets and fringes of many narrow light purple ray florets. The fruit is a rounded, hairy achene with a pappus.

Olearia suffruticosa, commonly known as clustered daisy-bush, is a species of flowering plant in the family Asteraceae. It is a shrub to 0.7 metres high with scattered, linear leaves. The "daisy" flower heads have 14 to 20 white or pink ray florets and 18 to 28 disc florets. These occur between January and April in the species' native range.

The gray-green woolly leaves are divided into several lobes or leaflets which are subdivided into smaller lobes. The inflorescence is generally a cluster of a few flower heads lined with hairy phyllaries and containing yellow disc florets. There are no ray florets. The fruit is a tiny ribbed achene which swells up and becomes gluey in texture when it is moistened.

The leaves are linear (long and narrow) and up to 5 centimeters (2 inches) long. The inflorescence is made up of clusters of flower heads surrounded by gland-tipped bracts. Each flower head is a hairless bunch of small disc florets and 1 to 4 white to pink ray florets. Each ray floret has three lobes, the middle lobe being narrowest.

Members of the genus are native to South, Central, and North America, with some species found as far north as Virginia and Illinois. They are commonly known as thoroughworts. Fleischmannia is in the tribe Eupatorieae and as such has flower heads with disc florets and no ray florets. Within that tribe it is most closely related to Conoclinium and Ageratum.

Spikelets are oblong, solitary, long, and carry fertile ones that are pedicelled. Fertile florets are diminished at the apex and have 3–8 fertile florets. The glumes are chartaceous, lanceolate and keelless while the apexes and size are different. The upper glume is long and have an acuminate apex while the lower glume apex is acute with absent lateral veins.

The name is derived from Ancient Greek (), meaning "wide", and (), meaning "few", perhaps in reference to the small number of relatively wide ray florets.

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.

Printzia has tailed anthers and blunt style branches that are only downy at their tips, while Felicia has tail-less anthers and pointy style branches that are downy over the entire length. Garuleum lacks bristles on its cypselas and has finely pinnate leaves, while Felicia has cypselas crowned by one row of hair-like bristles and mostly entire leaves, sometimes with deep cutting teeth. Amellus has pappus consisting of scales and bristles, while Felicia only has bristles. The species of Polyarrhena have a strong likeness to the species of Felicia section Anhebecarpaea, but have bisexual ligulate florets, that are white, and have a pink wash on the outer surface, and male or fully infertile disc florets, while in the section Anhebecarpaea ligulate florets are female and blue-purple in color and the disc florets are bisexual and do set seed.

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.

The fruit is a hairy black cypsela that is shed from the plant with the remnants of disc florets and phyllaries still attached to it.

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.

The cylindrical inflorescence is up to 12 centimeters long, each spikelet made up of one strongly beaked fertile floret and one or two sterile florets.

The flowering period is from November to March, with the florets borne on long spikes (0.6–1.3 m long), and last for about 50 days.

The flowers are radially symmetrical. The greenish- yellow capitula are semi-spherical. The white ray florets can be present (M. recutita) or lacking (M. discoidea).

Gray) E. Greene, pygmy fleabane Erigeron pygmaeus is a very small daisy, rarely exceeding 6 centimeters (2.4 inches) in height. It forms clumps of hairy, glandular foliage with leaves under four centimeters (1.6 inches) in length. The inflorescence consists of a single small flower head with dark phyllaries. Each head contains 20–37 blue or purple (rarely white) ray florets surrounding many golden yellow disc florets .

Encelia ravenii is a multi−branched perennial shrub, reaching in height. The branches are lined with oval to roughly triangular leaves a few centimeters long, that are gray-green and woolly in texture. The inflorescence is a solitary daisylike flower head in diameter, on a tall, erect peduncle. The head has a center of many yellow disc florets surrounded by up to 25 white ray florets.

Encelia densifolia is a multi−branched perennial shrub, reaching in height. The branches are lined with dentate, triangular leaves a few centimeters long, that are light green, hairless and smooth in texture. The inflorescence is a solitary daisylike flower head in diameter, on a short, leaved peduncle. The head has a center of many yellow disc florets surrounded by up to 12 yellow ray florets.

Erigeron bonariensis grows up to in height and its leaves are covered with stiff hairs, including long hairs near the apex of the bracts. Its flower heads have white ray florets and yellow disc florets. It can easily be confused with Erigeron canadensis, which grows taller, and C. albida.Conyza bonariensi, International Environmental Weed Foundation It flowers in August and continues fruiting until the first frosts.

The leaves are thick and fleshy, and have a waxy coating. Their blades are up to 10 centimeters long at the base of the plant, and smaller farther up. The inflorescence contains several flower heads, each lined with green- or purple-tipped phyllaries. The head contains many golden yellow disc florets and 8 to 13 narrow yellow ray florets each under a centimeter long.

The center of each head contains golden yellow disc florets and a fringe of bright golden ray florets approaching 3 centimeters in maximum length. The fruit is a hairy achene up to a centimeter long, not counting its off-white pappus. Seeds are dispersed on the wind. An individual plant can live twelve years, surviving periodic wildfire by resprouting from its long, slender rhizome afterward.

Lasthenia fremontii is an annual herb approaching a maximum height near 35 centimeters. The hairy stem may be branched or not and it bears linear or few-lobed leaves up to about 6 centimeters long. Atop the stems are inflorescences of flower heads with hairy phyllaries. The head contains many tufted yellow disc florets with a fringe of small yellow or occasionally white ray florets.

Atop each stem is a flower head one to one and a half centimeters (0.4-0.6 inches) wide with a yellow center of disc florets and an outer fringe of up to 125 ray florets in shades of bright purple, pink, or white. The rays spread straight out or reflex back from the center.Flora of North America, Erigeron algidus Jepson, Man. Fl. Pl. Calif. 1052. 1925.

The first stage of ergot infection manifests itself as a white soft tissue (known as sphacelia) producing sugary honeydew, which often drops out of the infected grass florets. This honeydew contains millions of asexual spores (conidia), which insects disperse to other florets. Later, the sphacelia convert into a hard dry sclerotium inside the husk of the floret. At this stage, alkaloids and lipids accumulate in the sclerotium.

Garberia 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. It is also in the subtribe Liatrinae along with, for example, Carphephorus. Garberia is closely related to the genus Liatris, but can be distinguished because it is a shrub instead of an herbaceous perennial and has a different karyotype.

Layia leucopappa is an annual herb producing a light-colored, glandular stem to a maximum height just over . The leaves are fleshy and hairless except for ciliated edges. Smaller leaves are oval or oblong in shape and the larger ones are lobed and up to about 4 centimeters long. The flower head contains white to cream-colored ray florets and yellow disc florets with yellow anthers.

The inflorescence compound cyme is in diameter, pink-purple, with all the florets of similar form (no division into disc and ray florets). The flowers are usually dioecious, but not invariably so, with some plants bearing hermaphrodite flowers. The seeds are 4–5 mm long, with a feathery pappus which assists in wind dispersal.Flora of Northwest Europe: Cirsium arvense Blamey, M. & Grey-Wilson, C. (1989).

Leaves farther up the stem are linear to narrowly oval in shape and smaller. The leaves have untoothed edges and are coated in fine to rough hairs, especially on the undersides. The inflorescence bears one or more flower heads. Each head has a center of long yellowish tubular disc florets and a fringe of bright yellow ray florets, each up to 4 centimeters long.

Each head contains a center of yellow disc florets, some of which bear prominent white stigmas and white pollen. Around the edge of the head is a fringe of yellow ray florets with red stigmas. The fruit is an achene a few millimeters long which becomes sticky when wet. The plant is known from fifteen occurrences, but six of these may be degraded or destroyed.

Balsamorhiza incana (hoary 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 Idaho, Montana, Wyoming, Washington, and Oregon. Balsamorhiza incana is an herb up to 70 cm (28 inches) tall. It has yellow flower heads, usually borne one at a time, with both ray florets and disc florets.

Balsamorhiza macrophylla (cutleaf 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 Idaho, Montana, Wyoming, Utah, and Oregon. Balsamorhiza macrophylla is an herb up to 100 cm (40 inches) tall. It has yellow flower heads, usually borne one at a time, with both ray florets and disc florets.

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.

Monographs in Systematic Botany from the Missouri Botanical Garden 85: i–xlii,. Bidens bipinnata is an annual herb up to 150 cm (60 inches) tall. It produces white or yellow flower heads sometimes one at a time but sometimes several, each containing both disc florets and ray florets. The species grows in fields, forests and disturbed sites such as road embankments and fallow agricultural areas.

Balduina atropurpurea (purpledisk honeycombhead) is a North American species of plants in the sunflower family. It is native to the southeastern United States (Florida, Georgia, Alabama, South Carolina, North Carolina).Biota of North America Program 2014 county distribution map Balduina atropurpurea is a perennial herb with branching stems. Each plant has 1-4 flower heads, each with yellow ray florets and purple disc florets.

Brickellia cylindracea (gravelbar brickellbush) is a North American species of flowering plants in the daisy family. It is found only in central Texas.Biota of North America Program 2014 county distribution map Brickellia cylindracea is a perennial up to 120 cm (4 feet) tall, growing from a woody caudex. It produces many small flower heads with greenish, yellow, or yellow-orange disc florets but no ray florets.

Bradburia hirtella is a North American species of flowering plants in the daisy family, native to Texas and Louisiana in the south-central United States. Bradburia hirtella is usually annual, with some populations perennial. It is an herb up to 80 cm (32 inches) tall with yellow flower heads. Disc florets are functionally male, the female parts being fertile only in the ray florets.

Chaenactis lacera is a Mexican species of flowering plants in the aster family. It grows on the Baja California Peninsula in northwestern Mexico, the States of Baja California (sometimes erroneously called Baja California Norte) and Baja California Sur.Tropicos, Chaenactis lacera Greene Chaenactis lacera is a branching annual sometimes exceeding 30 cm (12 inches) in height. Flower heads are numerous, with white disc florets but no ray florets.

Outer involucral bracts large, leafy of varying lengths, lanceolate to ovate, the inner scarious, shiny, stiff and spreading when dry. Inner involucral bracts shorter than the outer, scarious, recurved, spiny at the apex, blackish or purplish brown . Receptacle flat, scales persistent divided into linear segments, bristles also sometimes present, often tipped with red. Florets creamy yellow, hermaphrodite, all with a tubular 5-lobed corolla, ray florets absent.

Age and Rate of Diversification of the Hawaiian Silversword Alliance (Compositae). 1998.] They consist of rosette-forming epigeal shrubs or dwarf shrubs. They may consist of a single large rosette (Mauna Kea and Haleakalā silverswords), a short-branched rosette (Mauna Loa silversword), or spreading with runners (Eke silversword, greenswords). The flower heads consist of a ring of pistillate ray florets around 30 to 600 disk florets.

The pedicels are ciliate, curved, filiform, and hairy above. The spikelets have 2 fertile florets which are diminished at the apex while the sterile florets are barren, lanceolate and clumped. Both the upper and lower glumes are keelless and membranous, but every other feature is different; Lower glume is flabellate and is long with erosed apex. Upper glume is lanceolate and is long with an obtuse apex.

They measure up to 2.5 centimeters long by a few millimeters in width and do not become much smaller toward the ends of the branches. The inflorescence contains one to five flower heads, each with up to 19 yellow ray florets measuring 1 to 1.5 centimeters in length. At the center are many hairy yellow disc florets. There are approximately 500 individuals of this plant in existence.

Olearia megalophylla, the large-leaf daisy bush, is a species of flowering plant in the family Asteraceae. It is a shrub up to 2 metres high with scattered leaves. These are dark green above and woolly underneath and are 20 to 120 mm long and 6 to 28 mm wide. The flower heads have 5 to 9 white ray florets and 9 to 14 yellow disc florets.

The hairy leaves are 2 to 5 centimeters long and linear in shape, those on the lower stem toothed and those on the upper smooth-edged. The inflorescence bears flower heads with five bright yellow three-lobed ray florets, six yellow disc florets with black anthers, and phyllaries with long, soft hairs. The fruit is a glossy black achene two to three millimeters long.

The slightly hairy leaves are several centimeters long and generally oval-shaped, sometimes with small teeth and basal lobes. The inflorescence holds one or more flower heads which are knobby clusters of yellow disc florets but no ray florets. The phyllaries surrounding the flower head are particularly sticky. The fruit is an achene up to a centimeter (0.4 inches) long, not including its pappus hairs.

The inflorescence is one or more flower heads with purplish bases up to 6 centimeters wide. There are no ray florets, just an array of reflexed phyllaries around the purple-brown center packed with disc florets. This center, containing the receptacles, lengthens to several centimeters in length as the fruits develop. The fruits are achenes each a few millimeters long, some tipped with pappi of tiny scales.

It is surrounded at the base by narrow oval leaves up to 8 cm (3.2 inches) long, on petioles. There may be a few much smaller leaves along the stem. The inflorescence is made up of 1-3 flower heads per stem, each head lined with hairy, glandular phyllaries. The head contains 15–40 blue or purple ray florets surrounding numerous yellow disc florets.

The damaged florets are joined together near the entrance holes. Often as many as 15 florets are joined together in a row, forming a tunnel in which a fully grown larva may be found. The larva spins a silken cocoon within which it pupates. The pupa is almost white at first, turning brown soon after, and almost black when the adult is ready to emerge.

Erigeron multifolius is a Chinese species of flowering plants in the daisy family. It grows on rocky slopes, and forest margins at high elevations in Tibet and Yunnan in southwestern China. Erigeron multifolius is a perennial herb up to 25 cm (10 inches) tall, forming a thick underground rhizomes. Its flower heads have white, pale pink, or pale purple ray florets surrounding yellow disc florets.

Ericameria brachylepis is a bushy shrub growing 100–200 cm (40-80 inches) high with branches covered in thready leaves up to 2.5 centimeters (1.0 inch) long. The inflorescence is a cluster of flower heads, each head lined with phyllaries and resin glands. The flower head contains several yellow disc florets and no ray florets. The fruit is a small achene topped with a white pappus.

Cirsium eriophorum, the woolly thistle, is a herbaceous biennial species of the genus Cirsium. It is widespread across much of Europe. It is a large, biennial herb with sharp spines on the tips of the leaves, and long, woolly hairs on much of the herbage. Flower heads are large and nearly spherical, with spines on the outside and many purple disc florets but no ray florets.

Coreopsis gladiata (coastalplain tickseed) is a North American species of perennial tickseeds in the sunflower family. It is native to the southeastern United States from eastern Texas to southeastern Virginia, primarily to the coastal plain.Biota of North America Program 2014 county distribution map Coreopsis gladiata is a perennial herb up to 70 cm (28 inches) tall. Flower heads have yellow ray florets and purple disc florets.

The single cluster of 14-20 flowers appear at the end of branches on a short stem less than long. The mauve to purple "petals" (strictly ligules of the ray florets) are linear and long. The flower centre is a yellow disk of 30-56 florets. The oval to linear overlapping bracts are arranged in rows of 4-5 and long, smooth and finely fringed.

Greenman, Jesse More 1903. Proceedings of the American Academy of Arts and Sciences 39(5): 117 Tagetes nelsonii is a hairless annual herb from 50 cm (20 inches) to 2m (6 feet) tall. Leaves are pinnately compound with 3-7 leaflets. The plant produces numerous small flower heads in a flat- topped array, each containing 5-6 yellow ray florets surrounding 9-12 greenish-yellow disc florets.

Tagetes lemmonii is a shrub sometimes reaching as much as 240 cm (8 feet) tall. Leaves are up to 12 cm (4.8 inches) long, pinnately compound into 3-5 leaflets, each leaflet narrowly lance-shaped with teeth along the edge. The plant produces many small flower heads in a flat-topped array, each head with 3-8 ray florets and 12-30 disc florets.

It is a perennial herb sometimes as much as 150 cm (5 feet) tall. One plant can produce as many as 6 flower heads, each with 10-20 yellow ray florets surrounding as least 90 red, purple, or yellow disc florets. The species grows in sandy, open areas at low elevations, often near the coast.Flora of North America, Helianthus floridanus A. Gray ex Chapman 1883.

One plant produces many small flower heads in a flat-topped array, each head contains 5 small, pale yellow ray florets surrounding about 7 greenish-yellow disc florets. The head is cylindrical, with purple bracts along the outside. The plant grows in disturbed areas and has been reported as a weed in cultivated maize fields. It is aromatic but with an odor that most humans find disagreeable.

The plant grows as a dense shrub up to 1.5 m in height. The leaves are small (5–12 mm long, 0.5–1.5 mm wide) and crowded on the stems. The flowers have 20–30 ray florets, 8 mm long, white with purple tips; there are about 40 disc florets, 4 mm long and purplish. The fruit is brown and ellipsoidal, 3 mm long.

This is a perennial herb growing a reddish-green glandular stem to heights from 30 to 120 centimeters. The narrow leaves are linear in shape and up to 10 centimeters long. The inflorescence is an open array of flower heads containing white to pale purple ray florets and a center of yellow disc florets. The head is lined with phyllaries covered in tiny white resin glands.

Symphyotrichum frondosum is an annual or occasionally perennial herb growing a leaning or erect stem to a maximum height between 20 and 60 centimeters. The leaves are a few centimeters long and oval in shape with rounded tips. The stem and leaves are mostly hairless. The inflorescence is a small array of flower heads containing many short pale pink or lavender ray florets and yellow disc florets.

Head displaying florets in spirals of 34 and 55 around the outside The plant has an erect rough-hairy stem, reaching typical heights of . The tallest sunflower on record achieved . Sunflower leaves are broad, coarsely toothed, rough and mostly alternate. What is often called the "flower" of the sunflower is actually a "flower head" or pseudanthium of numerous small individual five-petaled flowers ("florets").

Felicia oleosa is an evergreen, richly branched dwarf shrub of up to high, that is assigned to the daisy family. It has narrow, awl-shaped leaves, with translucent oil or resin dots, pointing upwards, crowded on the younger stems. The flower heads have about thirteen bright blue ray florets, encircling many yellow disc florets. This species grows in the mountains dividing the Karoo region of South Africa.

The approximately thirteen female bright blue ray florets have straps of about long and wide. The numerous bisexual yellow disc florets have a corolla of long. In the center of each corolla are five anthers merged into a tube, through which the style grows when the floret opens, hoovering up the pollen on its shaft. At the tip of both style branches is a triangular appendage.

The involucre is up to 1 cm (0.7 in) in diameter and consists of three to four rows of bracts. These bracts are overlapping, densely glandular, and have a papery margin in particular above the middle. Around ten female ray florets have violet ligules of about long and wide. They encircle numerous bisexual yellow disc florets, with a yellow, often tinged reddish brown, corolla of about long.

These bracts overlap, are wide, are covered in glandular and bristly hairs, and have a papery fringe. The outer bracts are about and the inner about long. The fifteen or so female ray florets have blue-violet ligules of about long and wide. They encircle numerous bisexual disc florets, with a yellow corolla of about high, that is sometimes washed red at the five triangular free lobes.

The inflorescence is 2.5–5 cm diameter, pink-purple, with all the florets of similar form (no division into disc and ray florets). The seeds are 5 mm long, with a downy pappus, which assists in wind dispersal. As in other species of Cirsium (but unlike species in the related genus Carduus), the pappus hairs are feathery with fine side hairs.Blamey, M. & Grey-Wilson, C. (1989).

The upper leaves are small and pointed, no more than 2 centimeters long, and the lower leaves are longer and wither early. The petite flower heads appear singly or in clusters. Each head is lined with purple-tipped, glandular phyllaries. The head is discoid, containing no ray florets but a few funnel-shaped, lobed disc florets in shades of light purple to nearly white.

It is a deciduous shrub or small tree, tall by broad, growing in sparse forests or thickets in valleys or on mountain slopes. The leaves are broadly oval, toothed and long. In late summer it bears large conical panicles of creamy white fertile flowers, together with pinkish white sterile florets. Florets may open pale green, grading to white with age, thus creating a pleasing “two-tone” effect.

Felicia rosulata is a hairy, perennial, herbaceous plant of up to high, that is assigned to the daisy family. It has a rosette of elliptic leaves with 3–5 veins, and long, hairy stalks, each topped with one floral head consisting of about thirty middle blue ray florets encircling many yellow disc florets. It can be found in the mountains of Lesotho, eastern South Africa and Swaziland.

About thirty female ray florets with a blue strap and a hairy tube. These encircle many bisexual, disc florets with a yellow corolla of long. In the center of each corolla are five anthers merged into a tube, through which the style grows when the floret opens, hoovering up the pollen on its shaft. At the tip of both style branches is a narrowly triangular appendage.

Stanford University Press, StanfordTropicos, specimen listing for Hemizonia kelloggii Greene Deinandra kelloggii is an annual herb, sometimes growing to a height of 150 cm (5 feet). The plant produces numerous flower heads, each with 5 yellow ray florets and 6 disc florets with yellow corollas but with yellow, red, brown, or maroon anthers.Flora of North America, Deinandra kelloggii (Greene) Greene, Fl. Francisc. 4: 424. 1897.

There are one to six ray florets on the head, each with 3 lobes at the tip. They are white, cream, pink, or yellow, and some have a dark red spot near the base. There are up to 25 disc florets in shades of white, cream, pink, or yellow, with anthers that are usually purple or black, sometimes yellow or brown. The fruit is an angular cypsela.

The leaves dry up after the growing season and persist at least until the next spring. Each inflorescence (flower cluster), at the end of a culm, has one staminate (male) spike above two to three pistillate (female) spikes, each enclosed at the base by a tubular bract. There are 3 to 10 florets in each pistillate spike. The scales under the florets are white and translucent.

Prairie Sunflower H. petiolaris has flower heads reminiscent of those of a common sunflower, H. annuus. The fruits of the flowers are known as achenes. The flower head contains 10-30 yellow ray florets, surrounding 50-100 dark red-brown disc florets, and green, lanceolate phyllaries (bracts). The center of the flower has hints of white due to the presence of white hairs on the chaff.

Detail of the florets and bracts of a flowering orange tulip ginger Glossy, overlapping bracts form a terminal inflorescence, that is spike-shaped to ovoid. The bracts are red to orange, usually becoming more orange at the apex, which curves outward. The inflorescence is quite variable in size, ranging from long and cm broad. During flowering, small, hermaphroditic yellow or orange tubular florets emerge among the bracts.

The leaves are linear in shape and up to 5 centimeters (2 inches) long. The inflorescence bears bracts studded with large resin glands and small clusters of flower heads. The hairy, glandular flower head has a center of a few disc florets and one or two white or red triple- lobed ray florets. Each ray floret has three lobes at the tip, the middle lobe being shortest.

The superficial resemblance is in the foliage, which, though softer and not glossy, grows in a habit similar to that of the common Mediterranean rosemary, although the two species are not related. Eriocephalus africanus is fragrant, with lightly felted foliage that gives the plant a matt silvery appearance. The inflorescences are small brown and pale yellow heads borne in corymbs; each head bears a few bisexual disk florets with abortive ovaries and snowy white petals that practically cover a bush in flower. The disk florets surround usually some four to eight female florets in the centre.Dyer, R. Allen, The Genera of Southern African Flowering Plants”.

Oedera capensis is a prickly shrublet belonging to the daisy family (Compositae or Asteraceae). It has stems that branch only at the foot and are densely set over their entire length with narrowly triangular leathery leaves with a sharp tip at approximately right angles to the stem. At their tip are what at first sight appears to be a single flowerhead with yellow ray florets and yellow disc florets. In fact, these are mostly nine densely cropped heads, as is suggested by the nine domes of the "disc" of the composite head, the untidy arrangement of the ray florets, and becomes very clear when cutting through the composite head.

The functionally female florets are each stiffly enclosed by a large, cone-shaped green and white bract, and clustered with other one-flowered female flower heads, mostly surrounding groups of male florets. The inconspicuous corolla consists of whitish threads and surrounds the base of a whitish style with long arms which have rounded tips. The one-seeded indehiscent fruit (or cypsela) of the female florets are tiny, ovoid, with rows of stiff hairs on the ribs, and felty overall with long twin hairs, which have thin cell walls. The pappus on top consists of scales ending in a long drawn tip and with a row of hairs along the edges.

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.

Helianthus ciliaris is a perennial herb with distinctive blue-green foliage growing to heights of 40 to 70 centimeters (16-28 inches). It has a tough, horizontally spreading root system which sprouts new plants at distances from the parent, and can also sprout after being fragmented, so plowing the plant under can actually help it spread. The leaves are variable in size, shape, and arrangement, but are generally narrowly lance-shaped and wavy with rough hairs along the edges. The inflorescence holds a mass of at least 35 yellow-tipped red disc florets often surrounded by a fringe of 10-18 curling yellow ray florets, although some heads lack ray florets.

These florets sit on a common base (or receptacle) across and are not individually subtended by a bract (or palea). The one-seeded fruits (or cypselas) are inverted egg-shaped to oval, yellow-brown to reddish in color, have two conspicuous vascular bundles along their edge, and are crowned by a circle of many, long, bone-colored hairs, with small teeth along their length and slightly wider at the tip. The surface of those belonging to the ligulate florets are hairless, those of the disc florets have very short hairs. Solitary flower heads sit at the tip of a long peduncles, in few headed umbel- like inflorescences.

There may also be yellow marking on all ray florets or dark blotches on some or all of them. Ray florets with blotches may be relatively small and brighter colored compared to those without or have the same size and color. These egg-shaped, oval or narrowly oval ray florets reach at least as far out as or more often much further than the involucral bracts, are long and wide, have an pointy or blunt tip with mostly four teeth. The dark blotches are raised or flat, dark green, brown or purple with black, with one to four small white spots, with stripes and sometimes hairy away from the base.

The inside of the bracts are bright red. The florets turn from whitish to bright red. The plant is monoecious, both sexes occur in each flower.

Coronidium newcastlianum is a herbaceous perennial plant that grows to 60 cm (23,6 in). Petals of ray florets are usually white but partially can be pink.

It contains several hairy yellow to reddish disc florets. The fruit is an achene covered densely in long hairs and tipped with a large pappus of bristles.

The inflorescence is a solitary flower head with yellow to reddish disc florets. The fruit is a ribbed cypsela about one millimeter long with a large pappus.

When the larva is ready to pupate it probably comes out of the florets and drops to the ground to pupate. The adult moth is usually nocturnal.

The florets are minute. Like many daisies, it has seeds which are gradually dispersed on the wind. The seed germinates readily, but has a short viable life.

There are no ray florets. The fruit is an achene which may be over 2 centimeters (0.8 inches) long including its pappus.Cirsium parryi. Flora of North America.

The basal leaves have fleshy oval blades up to 3 or 4 centimeters long borne on petioles, with leaves farther up the stem smaller and simpler. The inflorescence is a single flower head, or occasionally two to five heads. Each is lined with reddish or green phyllaries with green or bluish tips. The head contains many golden yellow disc florets and usually 13 yellow ray florets each roughly a centimeter long.

The blade is oval to spade-shaped and may be several centimeters long. The inflorescence contains one or more hairy, glandular, daisylike flower heads, each with a center of yellowish disc florets and a fringe of yellow ray florets which approach 3 centimeters in maximum length. The fruit is a cylindrical achene about 7 millimeters long which is covered in stiff hairs and has a white pappus at one end.

The leaves have lance-shaped to oval blades measuring up to 20 centimeters long, the largest ones lower on the stem. The inflorescence is a corymb which is flat and spreading, often resembling an umbel. The flower heads are cups lined with black- or green-tipped phyllaries and filled with many gold disc florets. There are usually no ray florets but one or two occasionally emerge from a head.

In frost-free areas, it will bloom year-round. Around mid-morning, the flowers close or drop. The process of the flower head losing the ray florets is due to a change in temperature: as it gets hotter, the flower begins to turn white and then the ray florets begin to drop, leaving the green disc shape. The plant grows to be about 1–2 feet (30–60 cm) in height.

Packera layneae is a perennial herb producing an erect stem or a small cluster of stems up to 70 centimeters tall. The thick leaves have wide lance-shaped blades a few centimeters long which are borne on long petioles; smaller leaves occur farther up the stems. The inflorescence bears several flower heads containing many yellow disc florets and several narrow yellow ray florets each up to 1.6 centimeters long.

The hairy, leathery leaves are oval, up to about long, and usually lined with spiny teeth. The plant produces several flower heads each roughly a centimeter (0.4 inches) wide when open. The flower head is lined with roughly hairy, glandular phyllaries and contains disc florets surrounded with a fringe of tiny yellow ray florets. The fruit is a hairy white achene topped with a pappus of many white or brown bristles.

The inflorescence contains one or more daisy-like flower heads lined in glandular phyllaries. Each has a center of yellow disc florets and several yellow ray florets up to 3 centimeters long. The fruit is an achene with a white pappus. The plant was first described in 1832 by German- Russian botanist Gustav Heinrich von Bongard, based on material collected near Sitka, now in Alaska (then called Russian America).

Biota of North America Program 2014 county distribution mapCalflora taxon report, University of California, Ericameria ophitidis (J.Howell) G.Nesom, serpentine goldenbush Ericameria ophitidis is a shrub up to 30 cm (12 inches or 1 foot) tall. It has narrow, linear leaves up to 15 mm (0.6 inches) long. Flower heads are yellow, solitary or in flat- topped arrays, each head with 5 or 6 disc florets but no ray florets.

Leaves and stems are covered with whitish hairs. The plant produces a large number of small white flower heads in a large flat- topped array at the top of the plant. Each head generally has 5 disc florets but no ray florets. Eupatorium altissimum is part of Eupatorium even when that genus is defined narrowly to include about 40 species of mostly white-flowered plants of North America, Asia, and Europe.

It is pollinated by butterflies and bees. The alternate leaves, borne by a petiole from 0 to 17 cm, are oval to lanceolate, 5-30 x 5-12 cm; the margin is tightened to toothed. The inflorescence is a capitulum, 7 to 15 cm in diameter, formed by a prominent domed central protuberance consisting of multiple small yellow florets. These are surrounded by a ring of pink or purple ligulate florets.

The fleshy leaves are green, often with red edges and veining, and are up to 15 centimeters in length on large plants. The inflorescence holds one or more flower heads each up to 5 centimeters wide. The flower head is a cup of thick erect or recurved green phyllaries. Yellow disc florets fill the center of the flower head and there is a fringe of yellow ray florets around the circumference.

Male florets are ostiolar in up to 4 rows, on stems with 4 or 5 tepals with cilia ("eyelashes") and each with one or two stamens. The female and gall florets are generally without stems (sessile), with 5 ciliolate (with "eyelashes") tepals. Interfloral bracts are absent. In the Northern Territory it has been found flowering in January, March, May, June, July, September, October and November, and it fruits all year round.

The inflorescence is a single flower head or an array of a few or many heads. The head is hemispherical to bell-shaped and generally no more than a centimeter wide. The head has a center of many golden disc florets and a fringe of 8 to 12 white ray florets each just a few millimeters long. The fruit is an achene, usually with a pappus at the tip.

Close-up of emerging flower Gaillardia aristata grows in many habitats. It is a perennial herb reaching maximum heights of anywhere between . It has lance-shaped leaves near the base and several erect, naked stems holding the flowers. Each flower head has a center of brownish or reddish purple disc florets and a fringe of ray florets which are about long and yellow to reddish with dark bases.

Echinacea tennesseensis is a herbaceous perennial plant growing to tall. The leaves are hairy, lanceolate, and arranged in a basal whorl with only a few small leaves on the flower stems.Flora of North America, Echinacea tennesseensis (Beadle) Small, 1933. Tennessee purple coneflower The flowers are produced in a capitulum (flowerhead) up to 8 cm (3.2 inches) broad, with a ring of purple ray florets surrounding the brown disc florets.

The inflorescence has many bracts at its base forming a green bell-shaped or hemispheric incolucre. The yellow petal-like ray florets are sterile and tend to have 3-5 lobes at the edge. The more central disc florets are perfect, containing several arrow-shaped stamen as well as a pistil made up of two ovaries. Each pistil has a yellow two-branched style which extends out of the floret.

The common base of the florets (or receptacle) is pitted, and carries scales near its margin. The ligulate florets are yellow and have five triangular teeth at their tip. The fruits (or cypselas) are five-angled and carry few or many rigid, appressed hairs. The cypselas are topped by the changed calyx called pappus, which consists of rigid hairs and scales in 2-3 rows, or sometimes only of scales.

The phyllaries are unequal in size. The outer whorl consists of few phyllaries of about 2½ mm (0.1 in) wide and ½ mm (0.02 in) wide, while the inner phyllaries are in two whorls, about 4½ mm (0.18 in) long and ½–1 mm (0.02–0.04 in) wide, with rough glandular hairs or hairless, with papery margins. Each head consists of approximately sixteen white, female ray florets encircling many yellow, bisexual disc florets.

The pedicels are curved, filiform, and scaberulous. The spikelets have 2 fertile florets which are diminished at the apex while the sterile florets are barren, lanceolate, clumped and are long. Both the upper and lower glumes are keelless and membranous, but every other feature is different; Lower glume is flabellate, truncate and is long with an erose apex. Upper glume is ovate and is long with an obtuse apex.

Chrysopsis latisquamea (pineland goldenaster), is a North American species of flowering plant in the aster family. It has been found only in Florida.Biota of North America Program 2014 county distribution map Chrysopsis latisquamea is a biennial herb up to 70 cm (28 inches) tall. Each plant usually produces only one stem but it can hold as many as 60 yellow flower heads, each head with both ray florets and disc florets.

The white-haired leaves have oval blades up to 6 centimeters long by 5 wide, with smooth or toothed edges. The inflorescence is borne on a woolly, erect peduncle up to 11 centimeters tall. The flower head is about 2 centimeters wide with yellow ray florets 5 to 7 millimeters long and yellow disc florets in the center. The fruit is a white-woolly cypsela about half a centimeter long.

Cornflower is an annual plant growing to 40–90 cm tall, with grey-green branched stems. The leaves are lanceolate, 1–4 cm long. The flowers are most commonly an intense blue colour, produced in flowerheads (capitula) 1.5–3 cm diameter, with a ring of a few large, spreading ray florets surrounding a central cluster of disc florets. The blue pigment is protocyanin, which in roses is red.

The top of the stem bears a multibranched inflorescence with many flower heads. Each head is just over a centimeter (0.4 inches) wide and has many whitish to light blue ray florets but no disc florets. The fruit is a mottled achene about half a centimeter (0.2 inches) long with a brownish pappus. Lactuca biennis was described botanically in 1794, with the name Sonchus biennis, then transferred to Lactuca in 1940.

The leaves are narrowly oblanceolate (i.e. with a broad-rounded apex and a tapering base), set with stiff, straight bristles and located at the base of the stem. The flower heads are sometimes produced one at a time, sometimes in groups of 3 or 4. Each head contains as many as 60 blue or pink or white ray florets and many yellow disc florets, all produced in the summer.

The inflorescence is typically dense and axillary. The florets are small (usually less than 5 mm) compared to the other taxa in Melastomataceae, with short fleshy corolla parts. Cymes are bracteate, usually thyrsoid to umbel shaped, often condensed to sessile fascicles of flowers or a few-flowered heads at tips of peduncles. The florets are white or violet, the stamens blue or violet, usually obvious in aggregates, from axillary clusters.

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.

The flowers arise on naked peduncles with one to three flower heads per plant. Each flower head has a fringe of 15-30 golden yellow ray florets bent backwards from a rounded center of sometimes over 1000 disc florets (yellow toward the base but brown or purple near the tips). The fruit is a tiny, hairy achene a few millimeters long.Flora of North America, Helenium bolanderi A. Gray, 1868.

The leaves are oppositely arranged along the stems, dark green in colour and elliptic in shape. The flower heads sit individually on up to long, green to dark reddish stalks. They consist of about twelve heavenly blue ray florets that surround many yellow disc florets, together measuring about across. It is also cultivated as an ornamental, and was introduced in Europe in the middle of the 18th century.

Each head is supported by a base covered in long, pointed phyllaries that bend back as the head ages and develops fruit. The flower head has a fringe of golden yellow ray florets, each two or three centimeters (0.8-1.2 inches) long, and a center filled with curly yellow and brown disc florets. The achene is about half a centimeter (1.25 inches) long.Flora of North America, Helianthus californicus de Candolle 1836.

The plant can produce 1-5 flower heads per stem, each head with up to 25 purple, lavender, white, or pink ray florets surrounding numerous yellow disc florets in the center.Flora of North America, Erigeron leibergii Piper, 1901. Leiberg’s fleabane The species is named for plant collector John Bernhard Leiberg.Taxonomic literature : a selective guide to botanical publications and collections with dates, commentaries and types, John Bernard LeibergPiper, Charles Vancouver 1901.

Systematic Botany 7(4): 457–460 Erigeron rybius grows in grassy meadows and disturbed sites in coniferous forests. It is an perennial herb up to 35 centimeters (14 inches) tall, spreading by means of underground rhizomes and by leafy stolons that run along the surface of the ground. The inflorescence contains 1-6 flower heads per stem. Each head contains 47–99 white ray florets surrounding many yellow disc florets.

Erigeron breviscapus is a Chinese species of flowering plants in the daisy family. It has been found only in China, in the provinces of Guangxi, Guizhou, Hunan, Sichuan, Tibet, and Yunnan. Erigeron breviscapus is a perennial, clump- forming herb up to 50 cm (20 inches) tall, though in some cases less than 1 cm (0.4 inches) tall. Its flower heads have blue, purple, or white ray florets surrounding yellow disc florets.

The first stage of ergot infection manifests itself as a white soft tissue (known as Sphacelia segetum) producing sugary honeydew, which often drops out of the infected grass florets. This honeydew contains millions of asexual spores (conidia) which are dispersed to other florets by insects or rain. Later, the Sphacelia segetum convert into a hard dry Sclerotium clavus inside the husk of the floret. At this stage, alkaloids and lipids (e.g.

Coreopsis nudata, the Georgia tickseed, is a herbaceous perennial plant species of the genus tickseeds in sunflower family. It is native to the southeastern United States, in the states of Georgia, Florida, Alabama, Mississippi, and Louisiana.Biota of North America Program 2014 county distribution map Coreopsis nudata is a perennial herb sometimes as much as 100 cm (40 inches) tall. Flower heads have pink or purple ray florets and yellow disc florets.

This is a perennial grass which can reach one half to nearly three meters in height and spreads via stolons. It forms tufts and can spread into wide monotypic stands. The inflorescence is a single or double whorl of fingerlike racemes up to 15 centimeters long. Each spikelet in the raceme is a few millimeters long and contains one or two fertile florets and up to four sterile florets.

The Cichorieae (also called Lactuceae) are a tribe in the plant family Asteraceae that includes 93 genera, more than 1,600 sexually reproductive species and more than 7,000 apomictic species. They are found primarily in temperate regions of the Eastern Hemisphere. Cichorieae all have milky latex and flowerheads that only contain one type of floret. The genera Gundelia and Warionia only have disk florets, while all other genera only have ligulate florets.

The sessile, single white "daisy" flowers are at the end of branches in clusters on short lateral stems and in diameter. The over- lapping bracts are arranged rows of 3 or 4, lance-shaped and ending with a point or rounded at the apex. The white to pale-pink "petals" (strictly ligules of the ray florets) are oblong shaped and long. The 2-8 disk florets are yellow or mauve.

Outer bracts mostly white in colour but can be streaked with pink, inner bracts are white or pink. The florets are in the form of corolla tubes in the pseudanthium, they are numerous and pink to purple in colour. Flowers in Summer, between December and February. This plant can be mistaken for Celmisia saxifraga but the heads lack ray florets and the leaves are not silvery and hairy above.

It is a perennial herb growing to a maximum height near one meter from a short rhizome. The leaves are up to 15 centimeters long and lance-shaped and pointed at the tips. Some of the leaves and the upper parts of the stem are hairy. The inflorescence holds several flower heads containing many white to light violet ray florets around a center of long yellow disc florets.

Lasthenia platycarpha is an annual herb producing an erect stem approaching 30 centimeters in maximum height. The oppositely arranged leaves are up to 6 centimeters long, sometimes lobed, and sometimes coated in hairs. The inflorescence bears small flower heads with centers of gold disc florets and 6 to 13 golden yellow ray florets each just under a centimeter long. The fruit is a hairy achene with a pappus at the top.

Plants in the genus Pycnosorus are annual or perennial herbs, with leaves decreasing in size up the stem, those at the base withering first. The flowers are arranged in oval to more or less spherical heads of 40 to 200 flower-like partial heads. Each partial head consists of three to eight small flower-like "florets". The florets and the bracts which surround them are yellow or golden in colour.

There are many disc florets at the center. The fruit is an achene with a pappus of scales; the ray and disc florets produce fruits that differ in appearance. The flowers are pollinated by several species of bees, including Ceratina nanula, Synhalonia fulvitarsis, Dioxys pomonae, Stelis pavonina, and many species of Osmia. The plant was discovered in 1966 near Last Chance Creek south of the Fremont Junction in Utah.

This is an annual herb producing a solid stem tall. The hairy, glandular leaves have narrow linear or lance-shaped blades with smooth or lobed edges. The inflorescence is a cluster of flower heads each surrounded by the upper bracts on the stem branches. The head contains 6 to 9 lobed yellow ray florets, each a few millimeters long, and several yellow disc florets with yellow or brown anthers.

Felicia brevifolia is an evergreen, richly branched shrub of up to 1 m (5 ft) high, that is assigned to the daisy family. It has elliptic to wedge-shaped leaves, of between and 1 cm long, green to gray-green, many with several teeth. The flower heads have about fifteen blue-violet ray florets, encircling many yellow disc florets. This species grows in southern Namibia and the west of South Africa.

The inflorescence is made up of one or more flower heads which may be tucked amongst the uppermost leaves. The head has lance-shaped leaflike phyllaries which may be up to 5 centimeters long. There are 5 to 8 yellow ray florets which measure about 1.5 centimeters in length, and many yellow disc florets in the center. The fruit is an achene about a centimeter long tipped with a short pappus.

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).

Surrounding the base of the corolla are many, yellowish white, serrated, more or less deciduous pappus bristles, all about equal in length at . The eventually yellowish brown to reddish, dry, one-seeded, indehiscent fruits called cypsellae are elliptic in outline, about long and wide, with a ridge along the margin. The cypselae of the ray florets are hairless, those of the disc florets short-haired. Flowering occurs from September to October.

They measure up to 20 centimeters long at the base of the plant, and are smaller farther up the stem. They are mostly hairless but may have hairs lining the toothed or serrated edges. The inflorescence is a cluster of several flower heads, with clusters containing up to 100 heads. Each flower head contains many yellow disc florets and many narrow yellow ray florets each 3 or 4 millimeters long.

Each stalk terminates in a flowerhead about ½" across. This flowerhead consists of several spreading ray florets that are truncate with 5 teeth at their tips; these florets are bright golden yellow. The base of each flowerhead consists of 9-18 floral bracts in a single series; these bracts are lanceolate and about ¼" in length. They are erect while the flowerhead is blooming, but eventually become reflexed when the achenes mature.

There are also yellow ray florets but they are so small they are nearly invisible. Each is about half a millimeter long and has a minutely lobed tip.

Each head has up to 30 ray florets, yellow with a reddish tinge on the back. There are no disc florets.Linnaeus, Carl von. Species Plantarum 2: 811. 1753.

The flower head contains many golden yellow ray florets, the outer ones usually darker in color. The fruit is an achene with a plumelike pappus of white bristles.

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.

The species of the section Neodetris are erect, rarely creeping or hanging annual or perennial herbs or shrubs, mostly with flat, hairy leaves with an etire margin, sometimes with teeth and rarely with hairless or succulent leaves. The flower heads are small to relatively big, with blue or white, sometimes violet ligulate florets and yellow, very rarely reddish brown or dark blue, disc florets encircled by an involucre of two worls of bracts. The pappus that crowns the brown to black, medium size, shortly haired cypselas is mostly dehyscent, and pappus is absent in the ligulate florets. The 31 species are concentrated in the greater Cape area, extending from Lüderitz in Namibia to Durban.

Felicia aethiopica is often confused with Felicia amoena and Felicia amelloides. F. aethiopica is a woody shrublet with mostly only the lowest pair of leaves opposite and the remainder alternate, twelve to fourteen ray florets and also can be distinguished by the three resin ducts in the involucral bracts, that lack in both other species. F. amoena is a biennial or perennial plant with at least the lowest four to six leaves in pairs as well as those at each branching, and the remainder alternate and may have up to twenty five ray florets. F. amelloides is a mostly perennial plant with all its leaves in pairs and about twelve ray florets.

Their chlorophyllous zones, a darker green zone where chlorophyll is concentrated, appear on the upper half of the outer phyllaries, to the upper third or along the outer midveins of the inner phyllaries. The outer phyllaries typically measure wide with the lengths rarely exceeding 2.5 times the width. As with most members of the composite family, the actual flowers appear in two different forms: as ray florets, which have strap-like appendages that look like petals and project around the outside of the capitulum, and as disc florets, which appear at the center of the flower head and are very small. The ray florets number between 5 and 10, though as many as 12 may be present.

The communal base (or receptacle) on which the individual florets are implanted is flat, deeply pitted, and lacks receptacular bracts (or palea) at the foot of the florets. The eight or nine white or cream-coloured ray florets surrounding the disc are female only, have a cylindrical tube of 2½–3 mm (0.10–0.12 in) long with some glandular hairs, at the top changing into a spreading, elliptic or inverted lance-shaped blade of 10–12 mm (0.40–0.48 in) long and 4–6 mm (0.16–0.24 in) wide with four veins running along its length. At the base of each ray floret is a narrowly elliptic ovary with hairs pressed to its surface.

The bracts in the inner whorl are long and wide, eventually hairless. Each flower head contains twelve to sixteen pink, functionally female ray florets, with a closed tube at the base of about long set with some glandular hairs, and with a line-shaped strap that radiates out from the head of long, bluntly ending in three lobes, narrower towards the base, and with five to seven veins. From the mouth of the ray floret tubes extends a tube consisting of five infertile staminodes, through which a forked style grows. The ray florets surround many bisexual disc florets with a yellow corolla of about long, which is only slightly longer than the pappus.

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.

If there are ray florets they are less than a millimeter long. The fruit is a hairy achene a few millimeters long, sometimes with a pappus of tiny scales.

The head contains several yellow disc florets. The fruit is a ribbed achene tipped with a pappus of fringelike scales, the fruit around half a centimeter long in total.

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.

Florets along the edges of the head produce fruits. The fruit body is a millimeter in length with a white pappus about 5 millimeters long.Pluchea indica. Flora of China.

A cluster of cropped heads usually has 30 to 40 ray florets. A few shorter ray florets sometimes occur where the heads touch. The involucre that surrounds the cropped heads consist of several whorls of green, leaf-like bracts of usually wide, lanceolate, widest at midlength and with a prominent rib along the midline. The inner row of bracts surrounding the cropped heads have dense, silky hair in the lower part of their edges.

The leaves are lance-shaped to oval with toothed edges, the blades up to 25 centimeters long and borne on long winged petioles. The leaves are firm and sometimes a bit fleshy. The inflorescence is a loose or dense cluster of up to 30 or more flower heads lined with black-tipped phyllaries. They contain many yellowish disc florets at the center and often have some yellow ray florets, though these are sometimes absent.

1: 331. 1834. Arnica mollis is a perennial herb producing one or more hairy, glandular, mostly naked stems 20 to 60 centimeters tall. There are 3 to 5 pairs of leaves along mainly the lower half of the stem, each oblong in shape and 4 to 20 centimeters in length. The inflorescence holds one to a few daisylike flower heads with centers of yellow disc florets and fringes of yellow ray florets.

Layia pentachaeta is an annual herb growing a thick stem up to a meter (3 ft) tall, but often remaining shorter. The stem is coated in glandular hairs whose exudate gives the plant a sharp lemonlike scent. The thin leaves are linear to lance-shaped, with the lower leaves lobed and approaching 11 centimeters in maximum length. The flower head contains white or yellow ray florets and yellow disc florets with yellow anthers.

The leaves are roughly lance-shaped and are alternately arranged, sometimes more densely toward the ends of branches. They are up to 10 or 15 centimeters long. The inflorescence is often a wide array of several flower heads, but they may also be clustered in the leaf axils or branch tips. The head contains a few yellow ray florets, which are pistillate, and up to 25 or more yellow disc florets, which are bisexual.

These are annual and perennial herbs bearing daisy-like flower heads with yellow disc florets and usually yellow ray florets, associated with mesic to xeric habitats across North America. Several species now included in Heterotheca were previously classified in the genus Chrysopsis Heterotheca species are often used as food plants by the larvae of some Lepidoptera species including Schinia lynx, Schinia nubila and Schinia saturata (all of which have been recorded on Heterotheca subaxillaris).

Eupatorium mikanioides, commonly called semaphore thoroughwort, is a herbaceous perennial plant in Asteraceae found only in the US state of Florida.Biota of North America Program 2014 county distribution map Like other members of the genus Eupatorium, it produces large numbers of small white flower heads, each head with 5 disc florets but no ray florets. It grows a half meter to one meter tall. It grows in wet to moist areas, and is salt- tolerant.

There are no reports of the species in Maryland or Virginia in between.Biota of North America Program 2014 county distribution map Eupatorium resinosum has stems up to 100 cm (40 inches) tall and produce short rhizomes. The inflorescences are composed of a large number of tiny white flower heads with 7-11 disc florets but no ray florets. This species typically grows in moist areas, areas with acidic soils, and pine barrens.

Golden 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 Scolymus these are ligulate florets, common to the group except for Warionia and Gundelia, which only have disk florets. A unique character setting Scolymus apart from the other Cichorieae are the dorsally compressed cypsellas which are surrounded by scales (or paleae).

Each flower head is in diameter, with 30–38 lanceolate phyllaries around the base. The flower head is hemispherical, and contains 10–18 yellow ray florets surrounding over 70 disc florets. Helianthus eggertii is very similar to the related species H. strumosus and H. laevigatus. It differs from those species in that its stems are distinctively blue-colored, and its leaves have only one vein, rather than three veins, as is typical for the genus.

Eurybia schreberi, commonly called Schreber's aster or nettle-leaved Michaelmas-daisy, is a perennial herb in the composite family. It is native to eastern North America, where it is present in Canada and the United States. The flower heads emerge in the late summer or early fall to show white ray florets and yellow disc florets. It is listed as endangered in Indiana and Iowa, of special concern in Tennessee and possibly extirpated in Maine.

Berlandiera pumila (soft greeneyes) is a North American species of flowering plant in the sunflower family. It is native to the southeastern and south- central United States (Texas, Oklahoma, Arkansas, Louisiana, Alabama, Georgia, Florida, South Carolina, and North Carolina).Biota of North America Program 2014 county distribution map Berlandiera pumila is a branching herb up to 100 cm (40 inches) tall. It has several flower heads with yellow ray florets and maroon disc florets.

Bahia bigelovii (Bigelow's bahia) is a North American species of flowering plants in the sunflower family. It is native to the State of Coahuila in Mexico and to the western (trans-Pecos) part of the US state of Texas.Biota of North America Program 2014 county distribution map Bahia bigelovii is an annual reaching a height of 30 cm (12 inches). It has yellow flower heads with both ray florets and disc florets.

Bidens eatonii (Eaton's beggarticks) is a North American species of flowering plant in the daisy family. It is native to eastern Canada (Québec, New Brunswick, Prince Edward Island) and the northeastern United States (Maine, Massachusetts, Connecticut, New York, New Jersey). Bidens eatonii is an annual herb up to 150 cm (60 inches) tall. It produces as many as 3 flower heads containing yellow disc florets but usually no ray florets (occasionally 1, 2, or 3).

Carphephorus pseudoliatris (common name Bristleleaf chaffhead ) is a species of North American plants in the sunflower family. They are native to the southeastern United States in the states of Florida, Georgia, Alabama, Mississippi, and Louisiana.Biota of North America Program 2014 county distribution map Carphephorus pseudoliatris is an herb up to 100 cm (40 inches) tall. It produces a flat-topped inflorescence with many small purplish flower heads containing disc florets but no ray florets.

Mairia is a genus of perennial herbaceous plants assigned to the daisy family. All species have leathery, entire or toothed leaves in rosettes, directly from the underground rootstock, and one or few flower heads sit at the top of the stems that carry few bracts. These have a whorl of white to mauve ray florets surrounding yellow disc florets in the centre. In general, flowering only occurs after the vegetation has burned down.

It is lined with lobed oval leaves each a few centimeters long and coated in woolly fibers. The inflorescence produces one or more flower heads containing many glandular or bristly yellowish disc florets surrounded 6 to 8 yellow ray florets each up to a centimeter long. The fruit is an achene tipped with a pappus of approximately 8 scales.Flora of North America, Eriophyllum jepsonii Greene, 1891. Jepson’s woolly sunflower Greene, Edward Lee 1891.

Tageteae and Athemideae. Phytologia Memoirs 10: i–ii, 1–22, 43–93 Cotula australis grows low to the ground in a thin mat with some slightly erect, spindly stems. The leaves are divided and subdivided into fringelike lobes. The plant flowers in inflorescences only a few millimetres wide containing minuscule yellow disc florets surrounded by greenish brown bracts and rudimentary ray florets that have been reduced to pistils with no stamens or corolla.

In the center of the head are many yellow, bisexual disc florets of about 2 mm (0.1 in) long. In the center of the corolla of each disc floret are five anthers merged into a tube, through which the style grows when the floret opens, hoovering up the pollen on its shaft. The style in both ray- and disc florets forks, and at the tip of both style branches is a broadly triangular appendage.

The ray florets laminae are yellow and 15–20+ mm long. The disc florets have corollas 3.5–4.5 mm long with yellow apices. Cypselae or the fruits containing a single seed are 1.5–2.5 mm long and brown black with no wings.Coreopsis auriculata in Flora of North America Plants are found growing along roadsides and in openings in woods with mixed hardwood trees and pine barrens especially with calcareous soils in the south eastern USA.

Leaves located higher on the stem lack petioles and may clasp the stem at their bases. The inflorescence is a cluster of several flower heads lined with phyllaries which may be over a centimeter long and are hairy to hairless in texture. Each head contains many yellow disc florets and a fringe of several yellow ray florets. The fruit is an achene which may be over a centimeter long including its pappus.

The flowers, which appear from midsummer to autumn (fall), look very similar to sunflowers, but are a lot smaller; measuring about 2.5 cm in diameter, with golden yellow ray florets. In the middle of the flower there are small, sterile, tubular disk florets, which are structurally bisexual, but the stamens are the only fertile part, and they do not produce seeds. The corollas are tubular, 5-toothed, and the style is undivided.

The narrow linear leaves are up to 5 centimeters long but only a few millimeters wide and may be very hairy. The inflorescence is a solitary flower head, with up to 22 heads per plant. The flower head bears many yellow, brownish, or whitish ray florets 3 to 12 millimeters long, and has a center of many five-lobed yellow to reddish disc florets. The fruit is an achene tipped with a pappus of bristles.

The florets have five petals fused at the base to form a corolla tube and they may be either actinomorphic or zygomorphic. Disc florets are usually actinomorphic, with five petal lips on the rim of the corolla tube. The petal lips may be either very short, or long, in which case they form deeply lobed petals. The latter is the only kind of floret in the Carduoideae, while the first kind is more widespread.

Madia radiata is an annual herb growing upright 10 to 90 centimeters tall, the stem often branching and coated in bulbous resin glands. The bristly, glandular leaves are up to 10 centimeters long, often wider at the top of the plant than below. The inflorescence produces flower heads lined with hairy, gland-studded phyllaries. The head has golden yellow ray florets up to almost 2 centimeters long and a center filled with many disc florets.

The part of the spikelet that bears the florets is called the rachilla. A spikelet consists of two (or sometimes fewer) bracts at the base, called glumes, followed by one or more florets. A floret consists of the flower surrounded by two bracts, one external—the lemma—and one internal—the palea. The flowers are usually hermaphroditic—maize being an important exception—and mainly anemophilous or wind-pollinated, although insects occasionally play a role.

Symphyotrichum cordifolium reaches heights of up to . The lower leaves are heart-shaped, while leaves higher up on the stem tend to be sessile with more rounded bases. The composite flowers, which have bluish to rarely white ray florets and light yellow disc florets that eventually turn purple, emerge in August and persist into October. Where its range overlaps with that of Symphyotrichum puniceum hybrids sometimes occur, which are named Symphyotrichum × tardiflorum.

Solidago simplex is a perennial herb up to 80 cm (32 inches) tall, with a branching underground caudex. One plant system can produce as many as 10 stems. Leaves are long and narrow, up to 16 cm (6.6 inches) long, produced on the stem as well as at the base. One stem can sometimes produce as many as 150 small yellow flower heads, each with 7-16 ray florets surrounding 6-31 disc florets.

Solidago riddellii is a perennial herb up to 100 cm (40 inches) tall, with a branching underground caudex. One plant system can produce as many as ten stems. The leaves are long and narrow, up to 25 cm (10 inches) long, produced along the stems as well as at the base. One stem can sometimes produce as many as 450 small yellow flower heads, each with 7–9 ray florets surrounding 6–10 disc florets.

Golden 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 Scolymus these are ligulate florets, common to the group except for Warionia and Gundelia, which only have disk florets. A unique character setting Scolymus apart from the other Cichorieae are the dorsally compressed cypsellas which are surrounded by scales (or paleae).

Lasthenia burkei is an erect annual herb producing hairy stems with sparse linear or deeply divided, narrow, pointed leaves a few centimeters long. Atop the stem is an inflorescence, which is a flower head with a base of hairy phyllaries. The head contains many yellow disc florets surrounded by a fringe of several short ray florets, which are usually also yellow. The fruit is a hairy, club-shaped achene less than 2 millimeters long.

It has also been shown to be related to E. avita and E. paludosa. Eurybia compacta is a perennial up to 70 cm (28 inches) tall, the stem becoming woody with age. The flowers emerge from midsummer to the beginning of fall, with as many as 55 flower heads in a flat-topped array. Each head contains 5-14 pale blue, light violet or reddish purple ray florets surrounding 10-20 pale yellow disc florets.

This is a perennial herb growing from a long rhizome to a maximum height near one meter. Leaves are widely lance-shaped to oblong and pointed, the largest ones near the base of the stem reaching up to 12 centimeters long. The stem and leaves are roughly hairy. The inflorescence is an array of flower heads with many narrow white to light violet ray florets around a center of golden disc florets.

Stenotus acaulis is a perennial herb usually forming a compact tuft or mat of hairless to hairy and sometimes glandular herbage. The linear to widely lance-shaped leaves are up to 8 or 10 centimeters long with rigid, hair-lined edges. The inflorescence is a solitary flower head or small cluster of a few heads. The flower head contains yellow disc florets and several yellow ray florets each about a centimeter long.

Erigeron asperugineus (Idaho fleabane) is a species of fleabane in the daisy family. It is native to the western United States, the states of Montana, Idaho, Utah, and Nevada.Biota of North America Program 2014 county distribution map Erigeron asperugineus is a small perennial herb up to 20 cm (8 inches) tall. One plant usually produces 1 or 2 flower heads, each with 10–25 blue, pink, or purple ray florets surrounding many yellow disc florets.

Its ray florets are white with purple markings, while the center of the headis packed with white disc florets with purple anthers. The fruit is a dark achene which often bears a pappus of a few stiff, light colored bristles, resembling human eyelashes (hence the common name of the plant). Blepharipappus scaber grows in forests at elevations of 300–2200 meters (1000–7300 feet).Flora of North America, Blepharipappus Hooker, Fl. Bor.-Amer.

It is a rhizomatous perennial herb growing 30 to 70 centimeters tall with many large serrated leaves around the base of the stem on winged petioles. There are smaller lance-shaped leaves alternately arranged along the stem. The inflorescence is generally a large, solitary flower head which may exceed 8 centimeters in diameter. It has a fringe of 20 to 30 white ray florets around a center of many densely packed yellow disc florets.

Agnorhiza reticulata is a perennial herb producing a hairy, glandular, sticky- textured stem growing 40 to 70 centimeters tall, at times reaching 1 meter (3 ft.). The leaves have triangular or lance-shaped blades up to 15 centimeters long.Flora of North America, Agnorhiza reticulata The inflorescence is a usually solitary sunflowerlike flower head with up to 21 yellow ray florets measuring up to 2.5 centimeters long. At the center are yellow disc florets.

Golden 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 Scolymus these are ligulate florets, common to the group except for Warionia and Gundelia, which only have disk florets. A unique character setting Scolymus apart from the other Cichorieae are the dorsally compressed cypsellas which are surrounded by scales (or paleae).

It produces narrow, pointed leaves with two lateral lobes that form a trident shape. The foliage and stem are glandular and waxy, usually with a thin coat of light- colored hairs. The daisy-like flower head is a cup of fused phyllaries with 30–150 tiny yellow-orange disc florets surrounded by 9–14 bright yellow ray florets, each ray about a centimeter (0.4 inches) long.Flora of North America, Hymenoxys cooperi (A.

This is an annual herb producing an erect, nonglandular stem to a maximum height near half a meter. The leaves are linear or lance-shaped with prickly or fuzzy edges. The lower leaves may be lobed and grow up to about 10 centimeters long. The flower heads are cups of hairy-edged phyllaries with a fringe of white- tipped golden ray florets around a tightly packed center of yellow disc florets with purple anthers.

Layia heterotricha is an annual herb producing a thick, erect stem to a maximum height near 90 centimeters. The stem and foliage are covered thinly in dark glandular hairs and the plant has a scent similar to apples or bananas. The leaves are oval- shaped, fleshy, and sometimes slightly toothed. The flower head contains white to pale yellow ray florets each up to 2.5 centimeters long, and many yellow disc florets with yellow anthers.

Mairia petiolata has leaves with particularly coarse and irregular teeth along the margin, a distinct pattern of netted veins on the underside, and slender leaf stalks. It also has relatively graceful and elegant flower heads at the top of long, slender, mostly branched stalks. The involucral bracts have dark red margins, the disc florets are longer than the pappus and the dark red styles extend far beyond the mouth of the florets.

They surround a center of many disc florets. The fruit is a rough-haired achene 2 to 4 millimeters long. In Carrizo Plain National Monument, eastern San Luis Obispo County.

Senecio pauciradiatus is an annual herb in the daisy family, Asteraceae. The specific epithet comes from the Latin pauci- (“few”) and radiatus, referring to the flower's relatively few ray florets.

Lasura tree flowers during March–April. The inflorescence, mostly terminal, is, white in color. Individual florets are nearly 5 mm in diameter. At places these are somewhat hairy and white.

The ligules are 6–15 mm long and 5–10 mm wide. The florets are bisexual, pistillate, functionally staminate or neuter. The sepals are highly modified. Pollination is done by insects.

It grows in coastal areas, including the mountains at an elevation of . The species is used for ornaments, the inflorescences of which are yellow in colour and have around 14 florets.

The flower head has 5 to 30 florets in shades of blue or purple, or occasionally white or yellow. The achene is ribbed and has a pappus of bristles and hairs.

The central disc florets are yellow and tubular.Clapham, A.R., Tutin, T.G. and Warburg, E.F. 1968 Excursion Flora of the British Isles. Cambridge University Press. Flora of China, Galinsoga parviflora Cavanilles, 1795.

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.

The leaves of M. hirsuta are not as tidly arranged in rosettes as in the other species, and some leaves can even be found along the lower parts of the inflorescence stalks. M. hirsuta can also be distinguished from all other Mairia species by the combination of the regularly rounded or pointy teeth along the leaf margins, the long straps of the ray florets of long, and no staminodes in the ray florets. M. hirsuta can easily be confused with M. robusta that has similar leaves, and also has long ray florets that lack staminodes. However, the underside of the leaves of M. hirsuta is visible and greenish, despite densely to sparsely woolly hair (giving a whitish scaly appearance, with shiny, amber-coloured glands).

Gorteria is a genus of small annual herbaceous plants or shrubs, with 8 known species, that is assigned to the daisy family (Compositae or Asteraceae). Like in almost all Asteraceae, the individual flowers are 5-merous, small and clustered in typical heads, and are surrounded by an involucre, consisting of in this case several whorls of bracts, which are merged at their base. In Gorteria, the centre of the head is taken by relatively few bisexual and sometimes also male, yellow to orange disc florets, and is surrounded by one complete whorl of 5–14 infertile cream to dark orange ray florets, sometimes with a few ray florets nearer to the centre. None, some or all of them may have darker spots at their base.

Gorteria diffusa is a highly variable, small annual herbaceous plant or rarely a shrublet that is assigned to the daisy family (Compositae or Asteraceae). Like in almost all Asteraceae, the individual flowers are 5-merous, small and clustered in typical heads, and are surrounded by an involucre, consisting of in this case several whorls of bracts, which are merged at their base. In G. diffusa, the centre of the head is taken by relatively few male and bisexual yellow to orange disc florets, and is surrounded by one complete whorl of 5–14 infertile cream to dark orange ray florets, sometimes with a few ray florets nearer to the centre. None, some or all of them may have darker spots at their base.

The central disc florets of the flower head tend to be more red-violet, with the outer ray florets being yellow. In one variety, almost the entire flower is red, with only the barest tips of the petals touched with yellow. It blooms practically year-round in some areas, but more typically in summer to early fall. The fruit is an achene, almost pyramidal, hairy, and prolonged by a pappus 5 to 8 mm in length.

It is hairless in texture, with young plants sometimes appearing fuzzy, and green to red-tinged in color. The leaves have lance- shaped blades up to 20 centimeters long borne on short petioles, the leaves occurring evenly all along the stems. The inflorescence is a spreading array of many flower heads, each lined with green- or black-tipped phyllaries. The heads contain yellow disc florets and 5 to 8 yellow ray florets each under a centimeter long.

This is an annual herb growing a glandular but unscented stem to a maximum height near half a meter. The fleshy leaves are linear to lance-shaped, with the lower ones often having lobes and reaching near 7 centimeters in maximum length. The flower head has an urn- shaped base of rough, hairy phyllaries. The face has a fringe of yellow ray florets with white tips and a center of yellow disc florets with purple anthers.

The leaf bases are rounded and the leaves are sessile (lacking stalks), but they do not clasp around the stem. The foliage is dotted with glands. Eupatorium sessilifolium blooms in August and September (July in the southern part of its range), and the small inflorescences are branched and composed of widely spaced, tiny white flower heads in corymbiform (flat topped) arrays. The heads typically have five or six disc florets per head, but no ray florets.

Pleurophyllum criniferum is a large perennial herb, growing up to 2 m in height. The leaves may grow to a metre or more in length and are diverse in shape, though usually oblong-ovate to lanceolate, the undersides covered by silky white hairs. The flowers occur as 15–30 heads in elongated racemes with short and inconspicuous ray-florets and dark purple disk-florets. The plant flowers from December to February and fruits from January to May.

There may be shorter leaves on the lower part of the stem and there are few or none on the upper part. The inflorescence is a wide open array of many flower heads, each up to about a centimeter wide. The flower head is lined with hairy, often glandular phyllaries and filled with many yellow ray florets and no disc florets. The fruit is a small, dark cylindrical achene topped with a pappus of brown bristles.

Heads have many disc florets but no ray florets. The species grows primarily in damp areas in forest openings, prairies, and disturbed sites.Flora of North America, Field thistle, chardon discolore, Cirsium discolor (Muhlenberg ex Willdenow) Sprengel It is used as a component of some North American prairie and wildflower meadow restoration mixes that focus on the use of native species. Like most other thistles, it is a food plant for the caterpillars of the Painted Lady butterfly.

Publications of the Museum of Michigan State University, Biological Series 2: 429–528.Biota of North America Program 2014 county distribution mapWilliam R. Carr, The Nature Conservancy of Texas. 2009. No Place but Texas: An Annotated List of Plant Taxa Endemic to the Lone Star State Astranthium robustum is an annual with a taproot, and usually with several stems up to 50 cm (20 inches) tall. Flower heads have white or bluish ray florets and yellow disc florets.

Bidens mitis, the smallfruit beggarticks, is a North American species of flowering plant in the daisy family. It is native to the eastern, southeastern, and south-central parts of the United States, from eastern Texas to southern New Jersey.Biota of North America Program 2014 county distribution map Bidens mitis is an annual or sometimes perennial herb up to 100 cm (40 inches) tall. It produces numerous yellow flower heads containing both disc florets and ray florets.

Bidens polylepis is a North American species of flowering plant in the daisy family. It is native to south-central Canada (Ontario) and to the eastern and central United States (from Michigan and New Jersey south and west to South Carolina, New Mexico, and Colorado). Bidens polylepis is an annual herb up to 100 cm (40 inches) tall. It produces as many as 3 yellow flower heads per branch, each head containing both disc florets and ray florets.

Bidens discoidea, the small beggarticks, is a North American species of flowering plant in the daisy family. It is widespread across eastern Canada and the eastern and central United States, from Nova Scotia west to Minnesota, south to Florida and Texas.Biota of North America Program 2014 county distribution map Bidens discoidea is an annual herb up to 180 cm (72 inches) tall. It produces as many as 3 flower heads containing orange disc florets but no ray florets.

Boltonia montana (mountain doll's daisy), is a North American species of plants in the sunflower family. It is found only in the east-central part of the United States, in the states of New Jersey, Pennsylvania, and Virginia.Biota of North America Program, 2014 county distribution map Boltonia montana is a perennial herb up to 150 cm (60 inches) tall. It has many daisy- like flower heads with pink or lavender ray florets and yellow disc florets.

Carphephorus bellidifolius (common name Sandy-woods chaffhead) is a species of North American plants in the sunflower family. They are native to the southeastern United States in the States of Virginia, Georgia, North Carolina, and South Carolina.Biota of North America Program 2014 county distribution map Carphephorus bellidifolius is an herb up to 60 cm (24 inches) tall, largely without hairs. It produces an open, loose inflorescence with many small purplish flower heads containing disc florets but no ray florets.

Osmadenia tenella is a hairy, glandular, aromatic annual herb producing an erect stem approaching 40 centimeters (16 inches) in maximum height with threadlike branches. The linear leaves are alternately arranged, the largest low on the plant measuring up to 5 centimeters. The inflorescence is a cyme of several flower heads. Each head has 3 to 5 three-lobed ray florets which are white or pink-tinged and often have a pink spot, and several narrower disc florets.

Carphephorus corymbosus (common names Florida paintbrush and coastal plain chaffhead) is a species of North American plants in the sunflower family. They are native to the southeastern United States in the States of Florida, Georgia, and South Carolina.Biota of North America Program 2014 county distribution map Carphephorus corymbosus is an herb up to 120 cm (4 feet) tall. It produces a flat-topped inflorescence with many small purplish flower heads containing disc florets but no ray florets.

The pedicels are filiform, curved, pubescent, and hairy above. The spikelets have 1-2 fertile florets which is diminished at the apex while the sterile florets are barren, cuneate, and clumped with its floret callus being glabrous. Both the upper and lower glumes are keelless, membranous and have acute apexes. Their other features are different; Lower glume is obovate, long and have an erosed apex while the upper one is lanceolate, long and have obtuse apex.

It is adaptable to many conditions and is sometimes used to control erosion. It is a perennial with stout, woolly stems and aromatic, violin-shaped, heavily lobed leaves. The flower heads have many creamy-white to pink or bronze ray florets with lavender to reddish undersides and centers filled with purple disc florets. The fruit is a hard achene with a tuft of plumelike hairs on one end and an array of pappus scales on the other.

SEINet, Southwestern Biodiversity, Arizona chapter photos, description, partial distribution mapBiota of North America Program 2014 county distribution map Heterotheca subaxillaris is a perennial, aromatic herb up to 203 centimeters (80 inches or 6 2/3 feet) in height, often with several erect stems. The stems are hairy to bristly. The inflorescence contains 3-180 flower heads in a flat-topped array. Each head contains 15–35; yellow ray florets surrounding 25–60 disc florets at the center.

Encelia californica is a bushy, sprawling shrub reaching between 50–150 cm (20-60 inches) in height. It has many thin branches covered in widely spaced green leaves which are a rounded diamond shape. The solitary flower heads are daisylike, with 15 to 25 bright yellow ray florets 1 to 3 centimeters long around a center of protruding yellowish to purplish brown disc florets. The fruit is an achene 5 to 7 millimeters long, with no pappus.

It is a perennial herb growing erect to 1 m in height. The linear leaves are mostly located at the base of the plant, each 1–2 cm long and toothed or cut into bristle-tipped lobes. The inflorescence bears one or more flower heads lined with glandular, bristle-tipped phyllaries. The head has a center of many yellow disc florets and a fringe of 15 to 25 yellow ray florets each about 1/2 cm long.

The tip of the ligule is often divided into teeth, each one representing a petal. Some marginal florets may have no petals at all (filiform floret). The calyx of the florets may be absent, but when present is always modified into a pappus of two or more teeth, scales or bristles and this is often involved in the dispersion of the seeds. As with the bracts, the nature of the pappus is an important diagnostic feature.

Erigeron denalii is a North American species of flowering plants in the daisy family known by the common name Denali fleabane. It is found in Alaska, Yukon, British Columbia, and Northwest Territories.Biota of North America Program 2014 state-level distribution map Erigeron denalii is a very short perennial herb rarely more than 5 cm (2 inches) tall. Each stem generally has only one flower head, with 30–55 white or lavender ray florets surrounding numerous yellow disc florets.

Calflora taxon report, Erigeron supplex A. Gray, supple daisy, supple fleabane Erigeron supplex grows in the scrub of coastal bluffs and grasslands. This is a perennial herb producing an unbranched, hairy, erect stem up to 40 centimeters (16 inches) tall. It is surrounded at the base by oval-shaped leaves several centimeters long. The inflorescence is generally a single flower head one or two centimeters (0.4–0.8 inches) wide containing yellow disc florets but no ray florets.

It is a small shrub growing up to about 25 centimeters (10 inches) tall with branches lined with short, narrow, hairless to glandular, woolly leaves. The inflorescence is a cluster of flower heads at the tips of stem branches. Each head is lined with sticky, glandular phyllaries and contains as many as 20 yellowish disc florets and sometimes a few yellow ray florets but sometimes none. The fruit is an achene topped with a brownish pappus.

The mostly lance-shaped leaves are lobed and long near the base of the plant, approaching 30 centimeters (12 inches) in length, and smaller and sometimes unlobed farther up the stem. The inflorescence is an open array of many flower heads, each with pointed phyllaries with thick midribs and thinner, hair-lined edges. Each flower head has 5 to 8 golden yellow ray florets but no disc florets. The fruit is a narrow, ribbed achene with a whitish pappus.

Helianthus agrestis is a species of sunflower known by the common name Southeastern sunflower. It is found only in the states of Florida and Georgia in the southeastern United States.Biota of North America Program 2014 county distribution mapAtlas of Florida Vascular Plants Helianthus agrestis is an annual herb sometimes as much as 200 cm (80 inches) tall. One plant can have as many as 15 flower heads, each with about 12 ray florets surrounding 50 or more disc florets.

Chaetopappa hersheyi grows to an average of about high, but have been recorded to up to , producing a single flower head. The stem has rigid and ascending hairs usually with 4–6 leaves on it. The leaves are spatulate or lance-shaped and spiny at the tip, they range from long and up to wide. Composed of white ray florets and yellowdisk florets, the flower heads resembles those of the common or lawn daisy, Bellis perennis, in color.

This is a rhizomatous perennial herb growing a branching, erect stem to heights between 20 and 60 centimeters. Leaves are widely lance-shaped to oblong and pointed, the largest ones near the base of the stem reaching up to 15 centimeters long. The stem and leaves are roughly hairy in places. The inflorescence is an array of many flower heads with many narrow violet to nearly white ray florets around a center of golden disc florets.

Larger leaves on the lower stem are broad ovoid-acute and can be up to long. Leaves higher on the stem are smaller and narrower. The flowers are yellow and produced in capitate flowerheads, which are in diameter, with 10–20 ray florets and 60 or more small disc florets. The tubers are often elongated and uneven, typically long and thick, and vaguely resembling a ginger root in appearance, with a crisp and crunchy texture when raw.

The inflorescence bears one or more flower heads lined with several layers of pointed, curling or curving phyllaries. The head has a center of many yellow disc florets and a fringe of blue or purple ray florets each 1 to 2 centimeters long. The fruit is an achene around 3 millimeters in length tipped with a pappus of long hairs.Flora of North America, Dieteria canescens A number of insects can often be found in the flowers.

Erigeron aequifolius is a small perennial herb growing a hairy, glandular stem up to about 20 centimeters (8 inches) tall from a woody caudex and taproot. The small leaves are equal in size and evenly spaced along the stem. The inflorescence is a usually solitary flower head at the tip of the stem. The head contains many yellow disc florets surrounded by a fringe of ray florets which are white when new and turn blue as they dry.

Pycnosorus is a genus of six species of plants in the daisy family Asteraceae. Commonly known as billy buttons or drumsticks, they are annual or perennial herbs or small shrubs with a cylindrical to spherical head of up to 200 daisy- like "flowers". Each "flower" is a pseudanthium consisting of between three and eight florets surrounded by bracts. The petals are joined to form a small tube and the florets with their surrounding bracts are yellow or golden- yellow.

The oppositely arranged leaves are smooth-edged or toothed, and usually have rough or soft hairs. The flower heads are usually solitary at the tips of the stem branches, or occasionally borne in inflorescences. There are several to many disc florets with bell-shaped throats and 4 or 5 triangular lobes, usually yellow, or sometimes orange. Some species lack ray florets, but some have 5 to 20 or more, usually in yellow or orange, but occasionally white or purple.

Many female ray florets with a light blue, rarely yellow, strap, are long and 2 mm (0.1 in) wide, with a hairy tube. Many bisexual, softly hairy disc florets with a yellow corolla of about long. In the center of each corolla are five anthers merged into a tube, through which the style grows when the floret opens, hoovering up the pollen on its shaft. At the tip of both style branches is a narrowly triangular appendage.

Ericameria paniculata is a branching shrub reaching up to 2 meters (80 inches) tall. The spreading or erect stems are glandular and resinous and are often banded or splotched with black from a smut fungus Puccinia splendens. The glandular leaves are filiform (thread-shaped or narrowly oblanceolate) up to 3.5 centimeters (1.4 inches) in length. The inflorescence is an array of small, yellow flower heads, each of which contains 5 to 8 disc florets but no ray florets.

Calycadenia oppositifolia is an annual herb producing an erect, unbranching, hairy stem approaching 30 centimeters (12 inches) in maximum height. The leaves are linear in shape and up to 5 centimeters (2 inches) long, arranged oppositely about the stem. The inflorescence bears bracts coated in large resin glands and dense clusters of flower heads. The hairy, glandular flower head has a center of several disc florets surrounded by a few white or reddish triple-lobed ray florets.

Phyllaries (obscurely scarious) densely tomentose-villous. Florets: pistillate 8–10; functionally staminate 15–30; corollas (or lobes) yellow-orange or deep red, 2.2–3.5. Cypselae oblong-lanceoloid, somewhat compressed, , faintly nerved, glabrous.

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.

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.

The flowers are yellow coloured. The species have stems up to , with leaves that are lanceolate. The plant does not have ray flowers, only disk florets. It blooms from July to September.

There are usually 10-14 ray florets on an individual "daisy" flowers and bloom in spring and early summer. The fruit has 5 ribs long and has a single seed called an achene.

The stem reaches a meter in height with an inflorescence of 7 to 10 centimeters. The spikelets grow on short, wavy stalks and each has three florets with long, protruding stamens during flowering.

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.

Its spikelets are elliptic and are long. Fertile spikelets are pediceled, the pedicels of which are curved, filiform and are long. Florets are diminished. Its lemma have long hairs and have villous surface.

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.

Fertile spikelets have hairy, pubescent, curved and filiformed pedicels. Florets are diminished with callus being pubescent as well. The species have a smooth rachilla. Its lemma have long hairs and have villous surface.

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.

The center of the head has many disc florets in shades of reddish brown to purplish.Coreopsis tripteris. Flora of North America. This plant grows in moist habitat, such as streambanks and wet meadows.

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.

Hydrangea serrata is similar to H. macrophylla except it is a smaller more compact shrub with smaller flowers and leaves; it is also more hardy. With a rounded habit, it features dark green, serrated (toothed), ovate leaves to long, and clusters of long-blooming blue or pink lacy flowerheads in mid- to late summer. Both showy sterile florets and less showy fertile florets appear in each cluster. The flowers are perfect, having both male and female parts; they are insect- pollinated.

Its blue-green hairy foliage grows in a basal patch and along the stem, the leaves long and straight to spoon-shaped and between 5 and 15 centimeters (2-6 inches) in length. Atop the few-branched stem is an inflorescence of one to several flower heads each 5 to 12 centimeters (2-5 inches) wide. The center of each head is packed with golden yellow to pinkish- orange disc florets. Some heads also have ray florets which may be lavender or pinkish.

This is a small subshrub reaching up to about half a meter (20 inches) in height. It grows clumpy or gangly and generally erect stems in shades of gray and red which are lined with small linear green leaves. At the end of each branch of the stem is an inflorescence of one to three small flower heads just a few millimeters wide. The head contains several yellow disc florets with long, protruding styles and several yellow ray florets around the edge.

Redray alpinegold The leafy inflorescence produces many flower heads also completely covered in small glandular hairs. The green, lance- shaped phyllaries are over a centimeter (0.4 inch) long. The center of the flower head is filled with many yellow disc florets, while the edge is fringed with 28–75 narrow, thready red-orange to reddish pink ray florets each up to a centimeter (0.4 inches) long. The fruit is a hairy achene 6 to 8 millimeters (0.24-0.32 inches) long.

Adjacent each of the outer involucral bracts, several florets are fertile, and the surrounding parts of the common base of all florets in the head (or receptacle) swell and eventually become woody. The receptacle breaks up at maturity, each section corresponding with one of the persistent outer bracts. These segments break free from the parent plant and act as the dispersal units. The ribbed, flask- shaped, more or less curved fruitlets germinate inside the protective encasement of the woody segments.

Carphephorus tomentosus (common name woolly chaffhead) is a species of North American plants in the sunflower family. They are native to the southeastern United States in the states of Virginia, Georgia, North Carolina, and South Carolina.Biota of North America Program 2014 county distribution map Carphephorus tomentosus is an herb up to 80 cm (32 inches) tall, covered with many hairs resembling wool. It produces a flat-topped inflorescence with many small purplish flower heads containing disc florets but no ray florets.

Brickellia knappiana (Knapp brickellbush) is a North American species of flowering plants in the daisy family. It grows in desert mountain ranges in southern California (Inyo, San Bernardino, and San Diego Counties) and southern Nevada (Nye and Clark Counties).Biota of North America Program 2014 county distribution mapCalflora taxon report, University of Calilfornia, Brickellia knappiana E. Drew Brickellia knappiana is a shrub up to 200 cm (80 inches) tall. It produces many small flower heads with white disc florets but no ray florets.

The heads contain 4 to 8 yellow ray florets tipped with three lobes and up to 12 tubular yellow disc florets tipped with five curled lobes. The fruit is a ribbed achene up to a centimeter long including its pappus of many narrow scales. This species only occurs in the Andes of central Argentina, where it grows in rocky mountainous habitat at elevations between 2000 and 2600 meters. Associated flora includes Nassauvia axillaris, Berberis buxifolia, and species of Ephedra and Adesmia.

Eriophyllum congdonii is an annual herb growing mostly erect with branching stems up to 30 centimeters (1 foot) long. The woolly, whitish leaves are 1 to 4 centimeters (0.4-1.6 inches) long and may have a few shallow lobes.Brandegee, Townshend Stith 1899. Botanical Gazette 27(6): 449–450 as 'Eriophyllum Congdoni The inflorescence consists of one flower head containing many glandular yellow disc florets surrounded by 8 to 10 yellow ray florets each 3 to 5 millimeters (0.12-0.20 inches) long.

The spikelets have 1-2 fertile florets which are diminished at the apex while the sterile florets are barren, cuneate, and clumped with both its rhachilla and its floret callus being pubescent. Both the upper and lower glumes are keelless, membranous and are of the same size as spikelets. Their other features are different; Lower glume is elliptic with an acute apex while the upper one is lanceolate, and have obtuse apex. The species' lemma have ciliated and hairy margins with obtuse apex.

It is a small annual, typically not exceeding 30 centimeters in height. It grows from a small patch of somewhat fleshy leaves at the ground and erects several very tall, very thin gangly stems, each of which is topped with a flower head. The flower head is made up of five to 13 lemon yellow ray florets, each up to a centimeter long. The center of the head is filled with tiny disc florets, in a similar shade of bright yellow.

It may reach anywhere from 30 centimeters to 150 centimeters (1–5 feet) tall, and may be small and clumpy or quite sprawling. The leaves are up to seven centimeters (2.8 inches) long and are sometimes lobed. Each inflorescence holds several tightly packed flower heads in shades of golden yellow with centers full of 30-40 disc florets and usually a fringe of 6-6 small ray florets each a few millimeters long.Flora of North America, Eriophyllum staechadifolium Lagasca, 1816.

The inflorescence holds one or more flower heads, and each plant may have many inflorescences growing along the full length of the stem. The flower head has a cup of long, pointed phyllaries holding an array of bright yellow ray florets each one to two centimeters (0.4-0.8 inches) long around a center of yellow to dark purple or reddish disc florets. The achene is 3 to 5 millimeters (0.12-0.20 inches) long.Flora of North America, Helianthus exilis A. Gray, 1865.

The inflorescence bears several flower heads, each with a fringe of up to 13 red-veined white ray florets just under a centimeter long. The center of each head is filled with protruding tubular disc florets with large dark anthers. The fruit is a hairy, club-shaped achene which may or may not have a pappus at the tip.Flora of North America, Blepharizonia plumosa (Kellogg) Greene Blepharizonia is sometimes treated as a monotypic genus, and sometimes as a genus with two species.

The leaves are lance-shaped, up to 8 centimeters long, and coated in silky hairs. The plant produces an inflorescence up to about 15 centimeters tall consisting of a solitary flower head which is cylindrical to somewhat bell-shaped. The head is enclosed in the fused outer scales of the flowers, which look similar to the phyllaries of many other species' flower heads. The head contains many yellow disc florets up to a centimeter long each, and no ray florets.

Hieracium or hawkweeds, like others in the family Asteraceae, have mostly yellow, tightly packed flower-heads of numerous small flowers but, unlike daisies and sunflowers in the same family, they have not two kinds of florets but only strap-shaped (spatulate) florets, each one of which is a complete flower in itself, not lacking stamens, and joined to the stem by leafy bracts. As in other members of the tribe Cichorieae, each ray corolla is tipped by 3 to 5 teeth.

Since it must infect through the open florets, this gives the fungus a competitive advantage by allowing it to fall down to the healthy plants and ensuring that the fungus has a little extra time to produce and disperse spores before the florets of the healthy plants open. Ustilago nuda infects barley 'Hordeum vulgare L.' but there are many strains of Ustilago which infect many different cereal crops in a similar manner. Ustilago tritici, for example, is loose smut of wheat.

Botanical illustration of Synosma suaveolens (1913) Hasteola suaveolens is a perennial herb sometimes as much as 240 cm (8 feet) tall, hairless throughout, unbranched below the inflorescence. The spearhead shaped leaves are long and wide with serrated (toothed) edges. The plant flowers in late summer or early fall. The inflorescence is one or several roughly flat topped clusters of several to many flower heads consisting entirely of 18–55 white or very pale yellow disc florets, but no ray florets.

The individual flowers of a pseudanthium commonly are called florets. The real flowers (the florets) are generally small and often greatly reduced, but the pseudanthium itself can sometimes be quite large (as in the heads of some varieties of sunflower). Pseudanthia are characteristic of the daisy and sunflower family (Asteraceae), whose flowers are differentiated into ray flowers and disk flowers, unique to this family. The disk flowers in the center of the pseudanthium are actinomorphic and the corolla is fused into a tube.

Erigeron arenarioides is a species of flowering plant in the (daisy family) known by the common names sand fleabane and Wasatch fleabane. It has been found only in the northern part of the state of Utah in the western United States.Biota of North America Program 2014 county distribution map Erigeron arenarioides is a perennial up to 30 cm (1 foot) tall. It usually has several flower heads, each with 10–25 blue ray florets surrounding a disc with many small yellow disc florets.

Calflora taxon report, University of California, Erigeron biolettii E. Greene, Biolett's erigeron, streamside daisy Erigeron biolettii is a perennial herb producing a branching erect stem up to 90 centimeters (3 feet) tall. It is hairy and very glandular. The inflorescence is a loose array of as many as 15 flower heads at the tips of long, thin branches. Each head is lined with layers of densely glandular purple-tipped phyllaries and contains many yellow disc florets but no ray florets.

Hill's thistle is a low-growing thistle usually reaching in height, with a taproot system that runs deep into the ground. It is a perennial plant usually living for three years, and flowers in July and August. The plant's leaves are an elliptic-oblong shape with serrated edges, have tiny prickles, and have one central vein with smaller veins branching from it. The top of the stem holds a composite flower head, each consisting of many individual disc florets but no ray florets.

Felicia dregei is an evergreen, glandular shrub of up to 1 m (5 ft) high, that is assigned to the daisy family. It has flat, finely felty, grayish green, narrowly elliptic to lance-shaped leaves of up to long and wide, with an entire margin or here and there with up to ten teeth. The flower heads have about ten violet ray florets, encircling many yellow disc florets. This species grows in the Northern Cape and Western Cape provinces of South Africa.

Although an inflorescence contains many hundreds of florets, most proteas commonly have an infructescence with only a very low seed set, around 10%, or usually less than two dozen seeds. In this species, however, the seed set was found to be respectively 29% and 18% from two populations (Sneeubergnek, Murray Farm) of which ten and eleven heads were sampled. These two populations had respectively 258 florets per flower head (with a range of 118 to 379), and 393 (338 to 436), on average.

Crepis nicaeensis is a European species of flowering plant in the daisy family with the common names French hawk's-beard and Turkish hawksbeard. It is widespread across much of Europe, as well as being sparingly naturalized in scattered locations in the United States and Canada. Crepis nicaeensis is an annual or biennial herb up to 110 cm (44 inches) tall. One plant can produce as many as 15 flower heads, each with as many as 60 yellow ray florets but no disc florets.

One plant can produce several whitish flower heads containing disc florets but no ray florets. Sometimes the heads form closely associated pairs, a characteristic which is the origin of the common name "twinbugs".Flora of North America, Dicoria canescens A. Gray in W. H. EmoryGray, Asa 1859. in Emory, William Hemsley, Report on the United States and Mexican boundary survey made under the direction of the secretary of the Interior 2(1): page 87 description and commentary in EnglishGray, Asa 1859.

There are 10–50 spikes per culm, and in each spike there are three to six spikelets, or rarely as many as 10. Each spikelet is long and consists of two glumes and two florets. One of the florets is fertile, and has colorful orange to brownish red anthers and feathery white stigmas during the blooming period, which contrasts with the pale green, pale red, greenish-red, or purple color of the spikes themselves. After blooming, the spikes become straw-colored.

It produces flat-topped arrays of numerous flower heads, each with pinkish or purplish disc florets but no ray florets. The species can be confused with Emilia sonchifolia, but the flower bracts of the latter are much longer and vase-shaped. Cyanthillium cinereum has been used for smoking cessation in Thailand and other countries, and as relief for the common cold. It used to be called Vernonia cinerea, but apparently there was a taxonomic update, sometime prior to early 2014.

This is an aromatic annual herb producing an erect stem up to a meter-3 feet tall coated in dark glandular hairs. The leaves are linear or lance-shaped, and the lower ones are lobed or toothed and approach 10 centimeters in maximum length. The flower head has a nearly rounded base of fuzzy green phyllaries. It opens into a face fringed with bright yellow ray florets which are sometimes tipped with white, and a center of disc florets with purple anthers.

Felicia bergeriana is a richly branching, hairy annual plant of up to high that is assigned to the daisy family. It has opposite leaves and flower heads set individually on up to long stalks, that consist of an involucre of about cm ( in) diameter with two whorls of bracts, about twelve blue ray florets surrounding more yellow disc florets. It is sometimes called kingfisher daisy in English. It can be found in the Northern and Western Cape provinces of South Africa.

Calycadenia fremontii produces a rigid, erect, hairy stem reaching a top height anywhere between 10 centimeters (2 inches) and one meter (40 inches). The leaves are linear in shape and arranged alternately along the stem, especially on the lower part. The largest is up to 8 centimeters long. The inflorescence bears one or more glandular flower heads, each with 2 to 6 three-lobed ray florets in shades of white to red to yellow, and up to 20 disc florets at the center.

The style of each ray floret is up to long, the upper is split into two line- to ellipse-shaped branches. The ray florets do not contain staminodes. In the center of the head are many bisexual disc florets that are shorter than the longest pappus bristles, and these florets consist of a tube at their base of long, with some irregularly spread glandular hairs, and five upright or recurved triangular lobes of about long, and often have a resin duct along their margin, and sometimes set with long hairs and shiny glands with rounded tips. The five anthers, which are, as is usual in the entire family Asteraceae, fused in a tube, are about 1–2 mm (0.06–0.08 in) long, each with a triangular appendage of about mm (0.02 in) at their tip.

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.

The florets are long and are elliptic. Flowers have 3 anthers which are in length. Glumes are thinner than fertile lemma with the lower one being of which is one length of upper one.

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.

They are up to a centimeter long or longer. There are few to many whitish or purplish disc florets with purple anthers. The fruit is a ribbed cypsela, sometimes with a pappus of scales.

It flowers from July until September in the northern hemisphere. The achenes are grey, tipped with bristles. The pappus is white with equal length hairs. Similar to Mycelis muralis but showing more than 5 florets.

Its spikelets are orbicular, solitary and are long. Fertile spikelets have hairy, pubescent, curved and filiformed pedicels. Florets are diminished with callus being pubescent as well. The species are bisexual and have a scabrous rachilla.

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.

The panicles have filiform and pubescent pedicels. The spikelets are solitary while it florets are diminished at the apex. Its fertile lemma is chartaceous, lanceolate and is long. The glumes are different from each other.

It has yellow, sometimes yolk-yellow ligulate florets. Its vernacular name in Maltese is xewk isfar kbir, meaning "large yellow fin", cardogna maggiore in Italian, scoddi on Sicily, and scolyme à grandes fleurs in French.

During the blooming period, the staminate spike produces slender cream-colored anthers, aging to light brown, and each pistillate floret produces three long white, thread-like styles. The scales underneath the florets are dark purple.

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.

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.

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.

The inflorescence is narrow and compact, bearing spikelets parallel to the stem instead of spreading outward. Each spikelet is one to two centimeters long and contains up to 14 or 15 florets with membranous margins.

The fruit is an achene; achenes from the disc florets may have a pappus of scales.Flora of North America, Calycadenia fremontii A. Gray in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 100. 1859.

The fruit is an achene; those developing from the disc florets have a pappus of scales.Flora of North America, Calycadenia pauciflora A. Gray in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 100. 1859.

Jepson Manual. 1993 Its stems bear inflorescences of one to 15 flower heads which are variable in size from one to over three centimeters (0.4-1.2 inches) wide. The centers contain golden yellow disc florets and the edges are fringed with ray florets which may be long or quite short, and are shades of deep blue and purple to nearly white. While typical habitats include coastal bluffs, one highly specialised plant association is found within the two Cupressus macrocarpa dominant forests in Monterey County, California.

Senecio madagascariensis Poiret International Environmental Weed Foundation (IEWF) The flowerhead, which is part of an unfirm corymb, is made up of disc florets and ray florets, and is small, yellow and daisy-like, from 1-2cm in diameter. The plant flowers between late autumn and early spring in its native area. The fruit is an achene that is 1.5-2.5mm long and is brown- coloured, with a pappus that is 4-6.5mm long.Auld BA, Meld RW (1992) 'Weeds an illustrated botanical guide to the weeds of Australia.

The heads contain yellow disc florets and generally either 5 or 8 ray florets each about a centimeter long. Senecio spartioides' silvery white pappus hairs, that carry the tiny, brown seeds aloft, attract as much attention as the golden yellow flowers. The hairs are common on many members of the Sunflower Family, most famously on Dandelions, Taraxacum officinale. "Oides" is a form of the Greek "oid", which means "similar to" and thus "spartioides" means "similar to spart(ium)", a genus of Fabaceae (Pea Family).

Olearia elliptica is a shrub that typically grows to a height of and has scattered, curved, elliptic leaves long, wide on a petiole up to long. The upper surface of the leaves is sticky and the lower surface is a paler green. The flowers are borne in corymbs on the ends of the stems, each flower wide, the groups on a peduncle up to long. Each "flower" has between 8 and 23 white ray florets and between 8 and 30 yellow disc florets in the centre.

Eupatorium mohrii, commonly called Mohr's thoroughwort, is a herbaceous perennial plant in Asteraceae native to the southeastern and south-central states of the United States, in the coastal plain from Virginia to Texas. It has also been found in the Dominican Republic. Eupatorium mohrii is a perennial herb up to 100 cm (40 inches) tall and are producing tuberous rhizomes. As with other species of Eupatorium, the inflorescences contain a large number of tiny white flower heads, each with 5 disc florets but no ray florets.

Hulsea nana is a diminutive perennial herb producing clumps of hairy foliage and stout stems rarely more than 20 centimeters (6 inches) tall. The leaves are 2 to 6 centimeters (0.4-2.4 inches) long and have lobed edges and many glandular hairs. The stem usually bears a single robust flower head with layers of hairy to woolly phyllaries. The center of the head is packed with golden disc florets surrounded by a circumference lined with golden ray florets each about a centimeter (0.4 inches) long.

Monoptilon bellioides is a short annual plant; in seasons with very little rainfall, the plant may only grow to 1–2 cm, if it grows at all, while in seasons of heavy rainfall, it can grow up to 25 cm tall. The leaves are linear, 5–10 mm long, with a blunt apex. The flowers are produced in dense inflorescences (capitula), 2 cm diameter, with white ray florets and yellow disc florets in the center. The flowers open in the morning and close in the evening.

Cosmos atrosanguineus is a herbaceous perennial plant growing to 40–60 cm tall, with a fleshy tuberous root. The leaves are 7–15 cm long, pinnate, with leaflets 2–5 cm long. The flowers are produced in a capitulum 3–4.5 cm diameter, dark red to maroon-dark brown, with a ring of six to ten (usually eight) broad ray florets and a center of disc florets; they have a light vanillin fragrance (like many chocolates), which becomes more noticeable towards the end of the day.

Chrysopsis godfreyi (Godfrey's goldenaster), is a North American species of flowering plant in the aster family. It is native to the states of Florida and Alabama in the southeastern United States.Biota of North America Program 2014 county distribution map Chrysopsis godfreyi is an herb up to 50 cm (20 inches) tall, with a large taproot and most of its leaves in a rosette close to the ground. It produces numerous yellow flower heads in large arrays, each head having both ray florets and disc florets.

The spikelets have 2 fertile florets which are diminished at the apex while the sterile florets are barren, lanceolate, clumped and are long. Its rhachilla have scaberulous internodes while the floret callus is glabrous. Both the upper and lower glumes are keelless, membranous, and have acute apexes but have different size and description; Lower glume is obovate and is long while upper one is elliptic and is long. The species' lemma have eciliated margins while its fertile one is chartaceous, elliptic, and is long by wide.

It has fleshy stems and foliage in shades of bright green to purplish green. The small leaves are about one centimeter (0.4 inches) long, sometimes woolly, and shaped like a wedge with three small teeth at the end. The inflorescences at the ends of the stems are clusters of tiny flower heads, each bright golden yellow with a center of 10-20 disc florets surrounded by 5-7 ray florets each about two millimeters (0.08 inches) long.Flora of North America, Eriophyllum multicaule (de Candolle) A. Gray, 1883.

The spikelets have fertile florets that are diminished at the apex while the sterile florets are barren, clumped and orbicular. Both the upper and lower glumes are keelless, membranous, long, and light green in colour. They are also have acute apexes but are different in the amount of veins and other features; Lower glume is 1–3 veined and is ovate while the upper one is only 3–5 veined and is linear. Its lemma have scabrous and tuberculate surface with an obtuse apex.

This vegetable grows to tall, with arching, deeply lobed, silvery, glaucous-green leaves long. The flowers develop in a large head from an edible bud about diameter with numerous triangular scales; the individual florets are purple. The edible portions of the buds consist primarily of the fleshy lower portions of the involucral bracts and the base, known as the "heart"; the mass of immature florets in the center of the bud is called the "choke" or beard. These are inedible in older, larger flowers.

Most of the leaves are located around the base. They are thick and leathery, lance- shaped with large sawteeth along the edges, often center-striped in white, and measure up to 10 centimeters long. The inflorescence is usually a single flower head lined with centimeter-long phyllaries which are reddish to green with red edges. The head has a center of yellow disc florets and a fringe of ray florets which are yellow, often splashed with red along the undersides, measuring up to 1.6 centimeters in length.

The bracts of the inner whorl are Inverted lance-shaped, about long and wide, ribbed, and a little bristly. The outer bracts are lance-shaped, about long and 1 mm wide, with three sunken resin ducts, and consistent with the indumentum of the leaves, variously bristly hairy or also glandular. About twelve to fourteen female ray florets have a blue strap of ligula of about long and 1½ mm (0.06 in) wide, blue. These surround many bisexual, disc florets with a yellow corolla of about long.

Eurybia spectabilis, commonly known as the eastern showy aster, simply showy aster or purple wood aster, is an herbaceous perennial native to the eastern United States. It is present along the coastal plain of the U.S. where it is most often found growing in dry, sandy soils. Although it is not considered threatened due to its extensive range, it is locally endangered in many states. The flowers appear in the fall and show ray florets that are a violet- purple and yellow disc florets.

Gray) Bierner, 1994. Owl’s-claws, orange-sneezeweed Hymenoxys hoopesii is an erect perennial herb approaching a meter (40 inches) in height, with smooth-edged leaves, oval on the lower stem and lance-shaped toward the top. The inflorescence bears several flower heads on erect peduncles, each lined with a base of hairy, pointed phyllaries. The flower head has a center of 100–325 tiny disc florets fringed with 14–26 orange or yellow ray florets, each ray up to 3.5 centimeters (1.4 inches) long.

Erigeron jonesii is a North American species of flowering plant in the daisy family known by the common name Jones's fleabane. It is found primarily in Nevada and Utah, with a few populations in southern Idaho.Biota of North America Program 2014 county distribution map Erigeron jonesii is a branching perennial herb up to 40 cm (16 inches) tall, forming a large taproot. Each branch can produce 1-4 flower heads, each with up to 52 white or blue ray florets surrounding numerous yellow disc florets.

Erigeron howellii is a rare North American species of flowering plant in the aster family known as Howell's fleabane. It has been found in the Cascades in the northwestern United States, in northwestern Oregon and southwestern Washington.Biota of North America Program 2014 county distribution map Erigeron howellii is a perennial herb up to 50 centimeters (20 inches) tall, spreading by means of underground rhizomes. Each plant generally produces only one flower head, with up to 50 white ray florets surrounding numerous yellow disc florets.

Coreopsis stillmanii is an annual herb producing one or more erect stems with inflorescences growing to 30 centimeters (12 inches) in maximum height. The lobed, somewhat fleshy leaves are mostly located about the base of the plant and on the lower stem. The inflorescence includes a solitary flower head with a rounded involucre of green to reddish, rough-textured phyllaries. The flower head has a center of many yellow disc florets and a fringe of 5 to 8 yellow ray florets about a centimeter long on average.

The plant produces an inflorescence generally 25 centimeters to half a meter tall consisting of a solitary flower head or an array of up to three heads. The head is bell-shaped, sometimes widely so. It contains many orange to red-orange disc florets each about a centimeter long, and a fringe of several orange or reddish ray florets each up to 2 centimeters in length. The fruit is a long, narrow achene which may be 2 centimeters in length including its pappus of plumelike bristles.

Erigeron arizonicus is a species of flowering plant in the daisy family known by the common name Arizona fleabane. It is native to the southwestern United States (Arizona, New Mexico) and northwestern Mexico (Sonora).Biota of North America Program 2014 county distribution map Erigeron arizonicus is a perennial herb up to 60 cm (2 feet) tall, spreading by means of underground rhizomes. It produces 1-6 flower heads per branch, each head containing 25–80 white ray florets and many small yellow disc florets.

Eupatorium linearifolium is a fall-blooming herbaceous plant native to North America. Like other members of the genus Eupatorium it has inflorescences containing a large number of small white flower heads, each with 5 disc florets but no ray florets. Works such as Flora of North America define E. linearifolium to include all the plants which in the past were treated as E. cuneifolium. The most distinctive feature of E. linearifolium, compared with other Eupatorium species, is that the stems branch near the ground.

Biota of North America Program 2014 county distribution mapCalflora taxon report, Eastwoodia elegans Brandegee, yellow aster, yellow mock aster Eastwoodia elegansis is a shrub which sends up several erect and branched stems up to 100 cm (40 inches) tall. One plant can produce several yellow flower heads, each containing as many as 40 disc florets but no ray florets. The stems have a shredding bark and small leaves rarely more than 5 cm (2 inches) long.Flora of North America, Eastwoodia BrandegeeBrandegee, Townshend Stith 1894.

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.

These anthers are about long, and have triangular appendages at their tip of about long. The style of the disc florets is about long and the two line-shaped branches in which it splits are long and have a delta-shaped appendage at both tips. Surrounding the base of the corollas of both ray and disc florets are two whorls of white to straw-coloured pappus bristles. The outer whorl consists free barbed bristles of long, alternating with the pappus of the inner whorl.

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.

Cabobanthus bullulatus grows as a herb, measuring up to tall, occasionally to . The almost sessile leaves are oblong to oblanceolate and measure up to long. The capitula feature about 10 mauve florets. The fruits are achenes.

The common base of the florets (called receptacle) is 3–4 mm across, has the shape of a shallow, slightly hollowed dome, which may or may not carry a scale at the foot of each floret.

Fertile spikelets have hairy, pubescent, curved and filiformed pedicels. Florets are diminished with callus being pubescent as well. The species have a smooth rachilla. Its lemma have ribbed lateral veins, long hairs and have acute apex.

Liatris bracteata might be a variety of Liatris punctata, with the morphological differences primarily in the number of florets per flower head. It is genetically a hexaploid, while populations of L. punctata are diploid and tetraploid.

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.

They are arranged in clusters of 3 to 10, surrounded by long leaves. The flower head bracts are wooly, and pale below, with dark chaffy hairless tips. The florets are brownish yellow. The stigmas are pale.

This species can at first sight be confused with Carthamus species, such as C. lanatus, which is a true thistle with yellow disk florets, and although prickles are present on the stems, spiny wings are absent.

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.

The flowerhead has an involucre that is initially cup-shaped with a flat base, later becomes broadly cone-shaped, while the bracts eventually flip down to press against the stem when the seeds are ripe. It consists of a single whorl of eleven to fifteen lance-shaped, leathery bracts, with one or three resin ducts tapering to a long point, that are merged at their base, with a distinct thin and dryish margin that has a fringe of soft hairs towards the tips. The common base of the florets is flat and wide, without bracts at the foot of each floret, with a smooth surface except for regularly distributed indents where the florets are implanted. The flower heads each have five to eight female ray florets that consist of a closed tube at base and a strap nearer the top.

The inner layer can be purple-tinged. The head contains one or two rings of ray florets, most often in shades of reddish purple.Li, H., T. Liu, T. Huang, T. Koyama and CE DeVol. 1979. Vascular Plants.

A few items are in the form of animals such as falconss and flies but the most impressive objects in the hoard are the Egyptian-style pendants of the deity Astarte and gold diadems with quatrefoil florets.

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.

The open panicles are long and wide, with spreading or nodding branches. The spikelets are long and number one to six per branch. The rachillas can sometimes be visible at maturity. Spikelets have six to eight florets.

The flowering culms are tall. The inflorescence is an open panicle with solitary spikelets on narrow pedicels. Each spikelet has between two and six florets. The glumes have pointed tips and are narrower than the fertile lemma.

The inflorescence generally contains only 1 flower head per stem. Each head contains 15–32 blue, or white ray florets surrounding many yellow disc florets.Flora of North America, Erigeron salishii G. W. Douglas & Packer, Can. J. Bot.

Coreopsis palmata. Flora of North America. They are yellow, and generally a paler shade of yellow than related native Coreopsis. The center of the head has many disc florets that bloom yellow and darken as they dry.

The tip of each branch is swollen and bears a single large, pistillate floret while further down the branch are several smaller, slender-stemmed, staminate florets, the inferior glumes being half the length of the superior glumes.

It is used as a cut flower for its large, rounded heads with long yellow florets, and it can be used as a decorative dried flower. This is the largest Centaurea in cultivation and is easily recognized.

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.

Palea is puberulous, have ciliolate keels and is long. It sterile florets are barren, orbicular, and grow in a clump. Flowers are long and are fleshy, oblong, truncate and united. They have 3 anthers that are long.

The inflorescence is a solitary flat-topped woolly flower head containing many yellow disc florets. There occasionally appears a yellow ray floret, but they are usually absent. The fruit is an achene with a pappus of bristles.

They also have smooth surface and peduncle. The panicle is linear, open, inflorescenced and is long. Spikelets are elliptic and solitary with pedicelled fertile spikelets that carry 4-6 fertile florets. The main panicle branches are hairy.

Symptoms of bacterial panicle blight include seedling blighting and sheath rot in addition to panicle blighting, which accounts for most of the damage from this disease. Affected panicles have blighted florets, which initially show white or light gray on the basal third with a dark-brown margin and eventually become straw-colored. The florets then turn dark with growth of fungi or bacteria on the surface. Extensive occurrence of upright panicles because of the failure of grain-filling and seed development is a typical phenomenon observed in a severely infested field.

Phaneroglossa is a genus of plants that is assigned to the daisy family. The genus currently consist of only one species, Phaneroglossa bolusii, a perennial plant of up to high, that has leathery, line- to lance-shaped, seated leaves with mostly few shallow teeth and flower heads set individually on top of long stalks. The flower head has an involucre of just one whorl of bracts, few elliptic, white or cream ray florets, and many yellow disc florets. It is an endemic species of the Western Cape province of South Africa.

The top of the stem is occupied by an inflorescence of several flower heads, their hemispheric bases up to 2.5 centimeters (one inch) wide and lined with many small, green phyllaries with curving tips. Each flower head may have up to 30 narrow, pointed yellow ray florets between 1 and 2 centimeters (0.4-0.8 inches) long, surrounding a center of yellow disc florets. The fruit is a brown achene about a centimeter (0.4 inches) long including its long pappus of bristles.Flora of North America, Grindelia ciliata (Nuttall) Sprengel, 1826.

Eupatorium leptophyllum, commonly called false fennel, is a herbaceous perennial plant in Asteraceae native to the southeastern United States from Mississippi to the Carolinas.Biota of North America Program 2014 county distribution map Like other members of the genus Eupatorium, it is about one to two meters (40-80 inches) tall and has inflorescences containing a large number of tiny white flower heads, each with 5 disc florets but no ray florets. E. leptophyllum grows in wet areas and can grow in shallow water, often at the edges of ponds.

University of Waterloo Asteraceae Lab Solidago gattingeri is a perennial that produces yellow flowers in late summer. One plant can produce as many as 250 small yellow flower heads, some of then in large arrays at the top of the plant, others in smaller clusters on side branches. It is distinguished from the related Solidago juncea by having fewer flowers per head (only 1-5 ray florets and 4-11 disc florets). It is also closely related to Solidago missouriensis but is distinguished by having bract-like upper leaves and shorter rhizomes.

Species assigned to the section Dracontium are erect perennial herbs, with large leaves in a rosette at ground level and smaller bracts along a not or rarely shyly branched stem that carries one to four large heads with blue ligulate florets and yellow disc florets that are encircled by an involucre consisting of three worls of approximately equal sized bracts. The cypselas are brown, topped with one row of firm indehyscent pappus hairs and covered in short hairs. There are four species that are all restricted to the Drakensberg Mountains.

Felicia echinataThe section Longistylus consists of erect, branching, annual or biennial plants with oppositely set leaves lower and alternately set leaves nearer the top, both types hairy, lancet-shaped, with entire or toothed margins. Stems carry many, small heads with white or yellow ligulate florets and yellow disc florets, surrounded by an involucre of four worls of bracts. The small cypselas are crowned by pappus that consists of dehyscent, almost feathery bristles. The six species can be found from Namibia to southern Angola, and Zimbabwe through Malawi to Uganda.

Eupatorium semiserratum, commonly called smallflower thoroughwort, is a North American plant species in the sunflower family. It is native to the southeastern and south-central United States, found in all the coastal states from Maryland to Texas and inland as far as Missouri and Kentucky.Biota of North America Program 2014 county distribution map Eupatorium semiserratum stems sometimes more than 100 cm (40 inches) tall and are produced from short rhizomes. The inflorescences are composed of a large number of small white flower heads with 5 disc florets but no ray florets.

E. argophylla is a perennial herb up to tall, appearing silvery because of many small hairs pressed against the leaves. Leaf blades are up to long, with wings running along the sides of the petioles. Appearing in April and May, the flower heads are yellow, at the ends of long peduncles, each head with as many as 35 ray florets and up to 500 tiny disc florets. The achene is strongly flattened, covered with small hairs, and sometimes with a pappus of 2 awns up to 2 mm long (unlike some of the related species).

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.

Felicia mossamedensis or yellow felicia is a well-branched, roughly hairy, annual or perennial plant of up to high, assigned to the daisy family. It has alternately arranged, seated, flat to slightly succulent, broad-based, entire, blunt tipped leaves. The flower heads sit individually on top of a stalk of up to long, have an involucre of three whorls of bracts, many yellow ray florets and many yellow disk florets. It can be found in southern Africa, in Zimbabwe, Mozambique, Botswana, Swaziland, South Africa and on the coast of Angola.

Arnica louiseana is a Canadian species of arnica in the sunflower family, known by the common name Lake Louise arnica or snow arnica.Flora of North America, Lake Louise arnica, snow arnica, Arnica louiseanaBiota of North America Program 2014 state-level distribution map It is native to the Canadian Rockies in Alberta and British Columbia, and named for Lake Louise in Banff National Park. Arnica louiseana is a small plant rarely more than 20 cm (8 inches) tall. Flower heads are yellow, with both ray florets and disc florets.

Bidens heterosperma, the Rocky Mountain beggarticks,SEINet, Arizona Chapter, Bidens heterosperma A. Gray, Rocky Mountain beggarticks is a North American species of flowering plant in the daisy family. It is native to northwestern and north-central Mexico (Baja California, Chihuahua, Sinaloa, Sonora) and the southeastern United States (Colorado, New Mexico, Arizona).Biota of North America Program 2014 county distribution map Bidens heterosperma is an annual herb up to 60 cm (2 feet) tall. It usually produces flower heads one at a time, each containing both yellow disc florets and yellow ray florets.

Bigelowia nuttallii (Nuttall's rayless goldenrod) is a species of North American flowering plants in the daisy family, native to the southern United States (Texas, Louisiana, Alabama, Georgia, and Florida).Biota of North America Program 2014 county distribution map Bigelowia nuttallii is a sub- shrub up to 70 cm (28 inches) tall, often forming clumps. Most of the leaves are in a rosette near the ground, with smaller and narrower leaves on the stems. Flower heads are small, yellow, and displayed in flat-topped arrays, each with 2-6 disc florets but no ray florets.

The shaft of the style is mostly surrounded by five infertile stamens but these may be absent. Many yellow, funnel-shapped, star-symmetrical disc florets occupy the center of the flower head, often carry soft glands and carry five triangular lobes with a resin duct along the edge. The disc florets contain both ovaries topped by a forked style and five fertile anthers that form a tube around the style shaft. These anthers have triangular appendages at their tip, a blunt basis with or with a very short tail-like appendage.

It has netted veins. The surface is variably densely set with long, somewhat glandular hairs, particularly near the base. The flower heads are set individually on the top of up to 8 cm (3 in) long stalks. The heads contain both female ray and bisexual and male disc florets (so-called heterogamous capitula). At the base of the head, surrounding and protecting the florets before opening, are three unclear whorls of sepal-like bracts or scales (or phyllaries) that together make up the involucre, which is narrowly egg-shaped, about 7 mm (0.28 in) wide.

A number of other characteristics of B. prionotes can be understood as secondary responses to weak serotiny. For example, winter flowering ensures that seed is ripe by the beginning of the bushfire season; this is very important for weakly serotinous species, which rely heavily upon the current year's seed crop. Another example is the deciduous florets of B. prionotes. In strongly serotinous species, the old florets are retained on the cones, where they function as fire fuel, helping to ensure that follicles reach temperatures sufficient to trigger seed release.

It is very similar to both E. surculosa and E. paludosa and more research needs to be done to determine the exact relationship between the three species. Eurybia avita is a perennial herb sometimes as much as 80 cm (32 inches) tall, having 1-5 stems and reproducing by means of underground rhizomes. The flowers emerge in the late summer to early fall, the plant producing 3-15 or more flower heads in a flat-topped array. Each head contains 8–20 pale blue, purple, or violet ray florets and 15–45 yellow disc florets.

Although functionally female, five staminodes can be found surrounding the style shaft. The style is long, and the style branches ar its tip are purplish in colour, line–shaped to elliptic, 1–1 mm long, with a blunt tip. The ray florets surround many bisexual disc florets with a yellow corolla up to long, which is mostly shorter than the pappus. The tube-shaped part at the base carries glandular hairs, and the five triangular lobes are recurved at the top, often carry a few hairs and have a resin duct along their margin.

Baileya pleniradiata is an annual herb producing a light gray-green to nearly white woolly branching stem up to half a meter in height. The leaves are up to 8 centimeters long and may split into a few lobes. Each inflorescence is composed of a single flower head which is borne on a peduncle up to 10 centimeters (4 inches) long. The flower head has a center of yellow disc florets surrounded by a fringe of ray florets, sometimes in two or more layers, each bright yellow and up to a centimeter in length.

Rudbeckia hirta is an upright annual (sometimes biennial or perennial) growing tall by wide. It has alternate, mostly basal leaves 10–18 cm long, covered by coarse hair, with stout branching stems and daisy-like, composite flower heads appearing in late summer and early autumn. In the species, the flowers are up to in diameter, with yellow ray florets circling conspicuous brown or black, dome-shaped cone of many small disc florets. However, extensive breeding has produced a range of sizes and colours, including oranges, reds and browns.

Eurybia saxicastelli, commonly known as the Rockcastle aster, is an herbaceous perennial native to the south eastern United States. It is present only in the states of Kentucky and Tennessee along the Rockcastle River and the nearby Big South Fork River. As a result of its extremely restricted range as well as human alterations to its habitat, it is considered critically imperiled by the Nature Conservancy. The flowers appear in the late summer through fall and have ray florets that are pale blue to pale white and yellow disc florets that turn purplish with age.

Bidens trichosperma, the marsh beggar-ticks or marsh tickseed, is a North American species of flowering plant in the daisy family. It is native to central Canada (Quebec, Ontario) and to the eastern and north-central United States (primarily the Northeast, Great Lakes, and northern Great Plains, with a few isolated populations in the Southeast).Biota of North America Program 2014 county distribution map Bidens trichosperma is an annual herb up to 150 cm (60 inches) tall. It produces numerous yellow flower heads containing both disc florets and ray florets.

The involucre may be narrowly cylindrical to half globular, and consists of at least three whorls of overlapping and gradually changing bracts. The common base of the florets (or receptacle) does not carry a bract (or palea) subtending each floret. The florets are all bisexual and may have either a ligulate corolla, a disk corolla, or a bilabiate corolla (three lobes merged to a strap with teeth at the tip and two lobes free much further down), and the lobes may be strongly coiled. The corolla can be yellow, orange, red, white, pink or purple.

The flower head is encompassed by between 10 and 18 white ray florets, each with a three-toothed shape; the florets tend to curve downwards around the edges and may occasionally have pistils, although these do not produce fruit. Beneath the flower proper, oval bracts of the plant form an involucre, with soft hairs on each; further bracts are bristled and sit at right angles to the flowers. ;Fruits: The fruits are achenes (with no pappus). They are wrinkled, ribbed with ten ridges, and have small glandular bumps across the surface.