Page author: Don Knoke
Arnica nevadensis
Nevada arnica, Sierra arnica, Sierran leopardbane
WTU specimens
Other herbaria

Distribution: Cascade and Olympic Mountains of Washington, south to California; rare in our range.

Habitat: Open, rocky slopes at high elevations in the mountains.

Flowers: July - August

Origin: Native

Conservation Status: Not of concern

Description:
General:

Perennial from long, naked, branched rhizomes, 1-3 dm. tall, glandular throughout, the stems often solitary.

Leaves:

Cauline leaves 2-3 pairs, the lower larger and petiolate, the blade broadly ovate with rounded to sub-cordate base, 3-7 cm. long and 2-4 cm. wide; the long-petiolate basal leaves, similar to the lower leaves, often on separate short shoots.

Flowers:

Heads 1-3; involucre 10-15 mm. high, densely covered with short-stalked glands; pappus white to straw-colored, strongly barbellate.

Fruits:

Achenes uniformly glandular or short hairy or both.

Identification Notes:

The similar Arnica cordifolia has copius long, white hairs on the involucre, while A. nevadensis is only glandular; also, A. nevadensis has entire leaves, while A. cordifolia usually has toothed leaves.

Accepted Name:
Arnica nevadensis A. Gray
Publication: Proc. Amer. Acad. Arts. 19: 55. 1883.

Synonyms & Misapplications:
Arnica tomentella Greene
Additional Resources:

PNW Herbaria: Specimen records of Arnica nevadensis in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Arnica nevadensis checklist entry.

E-Flora BC: Arnica nevadensis atlas page.

CalPhotos: Arnica nevadensis photos.

USDA Plants: Arnica nevadensis information.

13 photographs:
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