Page 4: 350 results for involucre
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Doellingeria: Dichotomous Key
...short-hairy; involucre 3–5 mm tall; upright stems borne from elongate creeping rhizomes 1b. Body of cypsela glabrous; involucre 4.5–7 mm tall; upright stems mostly solitary from a fibrous...
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Dipsacus: Dichotomous Key
Dipsacus: Dichotomous Key. You are here: Dichotomous Key > Caprifoliaceae > Dipsacus. Dipsacus. ...
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Fagus: Dichotomous Key
...carpellate involucre ± straight to upcurved, relatively thinner and softer 1b. Leaf blades serrate, with 9–14 pairs of lateral veins; prickles of carpellate involucre ± straight to recurv...
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Nigella: Dichotomous Key
...an involucre composed of a whorl of bracts that are pinnately dissected into filiform segments; capsule smooth on outer surface, with 10 locules; ultimate segments of upper leaves linear ...
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Asteraceae Group 2: Dichotomous Key
...vines; involucre with 4 principal bracts 19b. Plants herbs; involucre with more than 4 principal bracts 20a. Leaves both opposite and borne on distinct petioles (rarely the u...
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Symphyotrichum: Dichotomous Key
...27a. Involucre 2.5–3.5 (–4) mm tall; capitula often numerous and secund along the branches 28a. Bracteal leaves usually shorter than 1.5 cm, conspicuously reduced in size from the stem le...
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Asteraceae Group 3: Dichotomous Key
...Staminate involucre of distinct bracts; carpellate involucre a conspicuous, prickly bur, 8–40 mm tall 11b. Staminate involucre of connate bracts; carpellate involucre with 1 or more serie...
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Asteraceae Group 1: Dichotomous Key
...white); involucre 9–15 mm tall 4b. Pappus of 5 scales and 5–10 slender bristles; rays yellow; involucre 4–7 mm tall 5a. Pappus composed of two different elements—5 or 10 flat...
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Sighting: purple-stemmed American-aster at 42.394012, -72.519920
Sighting: purple-stemmed American-aster at 42.394012, -72.519920 Posted Oct. 23, 2015, 3:53 a.m. by rpatel Description or comments: [Note hairy stems, clasping leaves, and tapering involucral ...
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Sighting: New York American-aster at 42.380, -72.535
Sighting: New York American-aster at 42.380, -72.535 Posted Oct. 26, 2015, 5:16 a.m. by abaez Description or comments: [Note the spreading, green, involucral bracts, this morphology is not fou...