Page 41: 3,140 results for bract
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Cirsium: Dichotomous Key
...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 tall; involucral bracts lacki...
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Ageratum: Dichotomous Key
...involucral bracts narrow-lanceolate, gradually tapering to an awn-like point 0.8–2 mm long, the abaxial surface stipitate-glandular, eciliate or sparsely ciliate on the margins 1b. Pedunc...
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Grindelia: Dichotomous Key
...involcural bracts terminated by green appendages (1.2–) 2.5–5.4 mm long 1b. Leaf blades toothed with mostly acute teeth, the apex of each tooth apiculate to setose (leaves rarely subenti...
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Mertensia: Dichotomous Key
...leafy bracts; leaf blades mostly 4–10 cm long, herbaceous, green; mericarps obtusely angled, dull, becoming wrinkled in drying 1b. Spreading to prostrate, native plants of Atlantic coast ...
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Humulus: Dichotomous Key
...spinulose-ciliate bracts that are narrow and do not completely conceal the fruits; anthers without glands 1b. Plants perennial; larger leaf blades commonly 3- to 5-lobed, with broad and o...
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Benthamidia: Dichotomous Key
...1a. Bracts of inflorescence truncate to emarginate at apex [Fig. 593]; fruits separate; leaf blades with 6 or 7 pairs of veins; petioles 5–15 mm long 1b. Bracts of inflorescence acuminate...
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Dracocephalum: Dichotomous Key
...Floral bracts spinose-serrate; lower stem leaves with blades 25–80 mm long; calyx 6–8 mm long 2b. Floral bracts entire or ciliate; lower stem leaves with blades 10–35 mm long; calyx 10 mm...
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Orobanche: Dichotomous Key
...subtending bracts; corolla 12–20 mm long, weakly zygomorphic, the 5 lobes subequal 1b. Flowers more than 3 per plant (usually more than 10), arranged in a spike, sessile; calyx divided ne...
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Artemisia pontica (Roman wormwood)
... Bract shape: the main bracts are oblong (roughly rectangular but rounded at the ends). Disk flower lobe number: 5. ...
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Sisyrinchium: Dichotomous Key
...spathe bracts, paired at the summit of the stem and sessile (i.e., without peduncles); spathe bracts closely subtended and partly concealed by a bract-like leaf; tepals white or pale violet ...