Arnica latifolia |
Asteraceae tribe heliantheae subtribe chaenactidinae |
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broad-leaf arnica, daffodil leopardbane, mountain arnica |
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Habit | Plants 10–50 cm. | |
Stems | usually simple, sometimes branched distally. |
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Leaves | 2–4(–6) pairs, cauline (basal leaves often persistent on sterile rosettes), petiolate (proximal, petioles relatively short, broadly winged) or sessile (mid and distal); blades lance-elliptic to ovate, 2–10 × 1–6 cm, margins serrate to dentate, apices obtuse to acute, faces glabrous or sparsely villous. |
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Involucres | narrowly turbinate. |
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Ray florets | 8–15; corollas yellow. |
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Disc florets | 20–90; corollas yellow; anthers yellow. |
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Phyllaries | 8–20, lanceolate to oblanceolate. |
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Heads | 1 or 3–5(–9). |
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Cypselae | dark brown, 5–9 mm, sparsely villous; pappi white, bristles barbellate. |
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2n | = 38, 76. |
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Arnica latifolia |
Asteraceae tribe heliantheae subtribe chaenactidinae |
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Phenology | Flowering Jul–Aug. | |
Habitat | Relatively moist, montane conifer forests to subalpine meadows | |
Elevation | 500–3300 m (1600–10800 ft) | |
Distribution |
AK; CA; CO; ID; MT; OR; UT; WA; WY; AB; BC; NT; YT
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Source | FNA vol. 21, p. 376. | |
Parent taxa | Asteraceae > tribe Heliantheae > subtribe Chaenactidinae > Arnica | |
Sibling taxa | ||
Name authority | Bongard: Mém. Acad. Imp. Sci. St.-Pétersbourg, Sér. 6, Sci. Math. 2: 147. (1832) | |
Web links |