Pyrrocoma uniflora (Hooker) Greene (Q2286)
Pyrrocoma uniflora is a taxon with the rank species within the genus Pyrrocoma
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Pyrrocoma uniflora (Hooker) Greene
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Pyrrocoma uniflora is a taxon with the rank species within the genus Pyrrocoma
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Statements
taxon/id/Pyrrocoma uniflora (Hooker) Greene
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Pyrrocoma uniflora (Hooker) Greene
Pyrrocoma uniflora
(Hooker) Greene
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 20: Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford University Press, New York.
accepted
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CA-AB
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CA-NT
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CA-SK
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US-CA
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US-CO
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US-ID
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US-MT
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US-NV
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US-OR
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US-UT
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US-WY
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Stems 1–7, curved-ascending to decumbent, red-tinged, sparsely leafy to almost naked, glabrate to lanate or tomentulose, eglandular.
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Leaves: basal petiolate, blades linear to oblanceolate or elliptic, 40–150 × 3–20 mm, margins usually sharply dentate to laciniate, rarely entire;
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cauline sessile, few, blades lanceolate, 20–50 × 2–6 mm, bases cordate, clasping;
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faces glabrous, sparsely to densely shaggy-tomentose or lanate, eglandular.
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Heads usually borne singly, sometimes 2–4 in racemiform arrays.
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Peduncles 2–12 cm.
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Involucres hemispheric, 6–13 × 10–20 mm.
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Phyllaries in 2 series, appresssed or loose, linear-lanceolate, 6–11 mm, subequal or unequal (sometimes outer ± shorter and green throughout), margins ciliate, faces usually villous to lanate, rarely glabrous.
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Ray-florets 18–50;
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corollas 7–11 mm.
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Disc-florets 35–60;
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Cypselae subcylindric, 2–4 mm, obscurely nerved and angled, faces sericeous;
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pappi tawny, 5–7 mm.
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glabrate
lanate or tomentulose
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oblanceolate or elliptic
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usually sharply dentate
laciniate
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glabrous
sparsely densely shaggy-tomentose or lanate
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glabrous
sparsely densely shaggy-tomentose or lanate
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