Pyrrocoma lanceolata |
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intermountain pyrrocoma, lance-leaf goldenweed |
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Habit | Plants 20–50 cm. | ||||
Stems | 1–10, decumbent to ascending or erect, red-tinged, sometimes branched, sparsely leafy, ± tomentulose or glabrous, sometimes stipitate-glandular. |
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Leaves | basal blades lanceolate or rarely oblanceolate to narrowly elliptic, 50–300 × 8–30 mm, margins sharply dentate, eciliate, apices acute, spinulose; cauline sessile, lanceolate, bases clasping; faces ± tomentulose to glabrate or glabrous, sometimes stipitate-glandular. |
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Peduncles | 0–6 cm. |
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Involucres | hemispheric, 7–10 × 10–18 mm. |
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Ray florets | 18–45; corollas 6–11 mm. |
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Disc florets | 20–100; corollas 5–7 mm. |
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Phyllaries | in 3–4 series, linear-lanceolate to lanceolate, 3–11 mm, unequal, bases white-chartaceous, margins entire, eciliate, apices conspicuously green, faces glabrous or tomentulose, rarely stipitate-glandular. |
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Heads | (1–)4–20(–50) in corymbiform or paniculiform arrays. |
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Cypselae | oblong, 3.5–4.5 mm, 4-angled, faces striate, sericeous; pappi tawny, 5–7 mm. |
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Pyrrocoma lanceolata |
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Distribution |
CA; CO; ID; MT; ND; NE; NV; OR; TX; UT; WY; AB; SK
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Discussion | Varieties 2 (2 in the flora). Pyrrocoma lanceolata has the widest range of any species and exhibits much variability in habit and head size. A number of infraspecific taxa have been recognized in the past; only two were retained by R. A. Mayes (1976). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 20, p. 419. | ||||
Parent taxa | Asteraceae > tribe Astereae > Pyrrocoma | ||||
Sibling taxa | |||||
Subordinate taxa | |||||
Synonyms | Donia lanceolata, Haplopappus lanceolatus | ||||
Name authority | (Hooker) Greene: Erythea 2: 69. (1894) | ||||
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