Page 2: 57 results for capitulum
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Question: Helianthus along the bank of a small stream in WIlliston VT 9/19/17
...and capitulum morphology, along with the habitat, this is likely Helianthus decapetalus (thin-leaved sunflower). It is a common native species of that habitat. Best wishes.
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Question: This aster was found near a pond in Woodlawn Preserve, NY Thank …
...the capitulum (flower head) so I can the involucral bracts. Without those features, I can't help confidently because there are several this plant could be (Symphyotrichum pilosum, S. dumosum, S....
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Question: Hi, I can’t figure out what composite family member this is. Lactuca? …
...per capitulum, as you noted, are good traits to focus on for identification. It is sometimes invasive, especially after forestry operations.
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Achillea: Dichotomous Key
...per capitulum, 3–5 mm long 3b. Leaf blades pinnately dissected into narrow segments; rays numbering (4–) 5 (–6) per capitulum, 1–3 (–4) mm long 4a. Leaves near the middle of...
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Question: I think that I have two different species of Eutrochium but I …
...a capitulum is a very crucial character for identify the species of Eutrochium. This is assessed by taking one of the capitula (flower heads) and dissecting it, counting the number of flowers held wi...
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Carthamus: Dichotomous Key
...of capitulum and then consisting of short, narrow scales; corollas orange, orange-red, or yellow 1b. Leaf blades usually pinnately lobed and spinose-toothed; stems white-tomentose; pappus...
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Centaurea: Dichotomous Key
...a capitulum with pappus; apical appendage of involucral bracts not decurrent on body of bract, therefore the base of the appendage ± truncate; disk corollas yellow or varying shades of purple; stems ...
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Question: This plant with 5-petaled yellow flowers grows along the Halfway House Trail …
...per capitulum. And no, composites do not always have both ray and disk flowers, some have only ray flowers (like this species and dandelion), and some have only disk flowers (like Joe-pye weed, thist...
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Hypochaeris: Dichotomous Key
...the capitulum. Those from the margin are shorter and either are short-beaked or lack beaks altogether compared with the inner cypselas, which are longer and have slender, apical beaks. ...
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Bidens: Dichotomous Key
...of capitulum with well-developed rays 10–30 mm long (except B. tenuisecta, with rays absent or short) 4a. Marginal flowers of capitulum lacking rays or with short rays up to 6 mm...