Page 2: 350 results for involucre
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Nabalus: Dichotomous Key
...the involucres. These bristles are sometimes misinterpreted as hairs on the involucres, leading to misidentification. The pappus bristles of Nabalus are minutely barbellate, the involucral brac...
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Cirsium: Dichotomous Key
...2a. Involucre 25–40 mm tall; involucral bracts (or most of them) with prominent spine-tips 2–6 mm long; leaf blades adaxially with abundant, appressed spines 2b. Involucre 10–15 (–20) mm ...
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Sighting: Symphyotrichum novae-belgii at 42.431, -72.632
Sighting: Symphyotrichum novae-belgii at 42.431, -72.632 Posted Oct. 4, 2015, 10:47 p.m. by bbuchanan Description or comments: [The green, spreading involucral bracts are diagnostic of this sp...
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Sighting: Symphyotrichum cordifolium at Melrose, MA
Sighting: Symphyotrichum cordifolium at Melrose, MA Posted Nov. 27, 2015, 10:55 p.m. by pgilbert Description or comments: [Note the heart-shaped leaves and purple involucral bract tips--admin....
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Sighting: Symphyotrichum lanceolatum at 42.37917, -72.53333
Sighting: Symphyotrichum lanceolatum at 42.37917, -72.53333 Posted Oct. 21, 2016, 3:27 p.m. by Towner1 Description or comments: [This plant lacks the appropriate involucral bracts and peduncle...
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Sighting: Symphyotrichum novae-angliae at Amethyst Brook Conservation Area Amherst, MA
Sighting: Symphyotrichum novae-angliae at Amethyst Brook Conservation Area Amherst, MA Posted Oct. 14, 2016, 5:23 p.m. by sblinn Description or comments: [Note the broadly clasping leaves and ...
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Sighting: Symphyotrichum puniceum at 42.377, -72.492
Sighting: Symphyotrichum puniceum at 42.377, -72.492 Posted Nov. 20, 2016, 1:15 a.m. by Zina1 Description or comments: [This is a member of the American-aster genus, the involucral bracts are ...
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Question: Hello, I submitted a query as to the identity of this plant, …
...The involucre (the series of bracts at the base of each flower head) are composed of two series, a shorter series and a longer series. Typically, this species has about 5 longer involucral bracts and...
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Fagaceae: Dichotomous Key
...per involucre; involucre covered with spine-like bracts [Fig. 658], enclosing 1–3 nuts at maturity; winter buds not clustered toward distal end of twig 2b. Carpellate flowers 1 per involu...
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Taraxacum: Dichotomous Key
...tall; involucres excluding the outer calyculus 12–16 mm tall 2b. Outer involucral bracts becoming reflexed [Fig. 471]; plants (1–) 5–75 cm tall; involucres excluding the outer calyculus (...