Page authors: Don Knoke, David Giblin
Arnica lanceolata
clasping arnica, stream bank arnica
WTU specimens
Other herbaria

Distribution: Cascades Mountains to the coast in Washington; Alaska to California, east to western Montana.

Habitat: Streambanks and moist woods at moderate to mid-elevations in the mountains.

Flowers: June-August

Origin: Native

Conservation Status: Not of concern


Perennial from a freely-rooting rhizome, 3-8 dm. tall, more or less glandular and hairy.


Cauline leaves 5-12 pairs, not much reduced upward, narrowly lance-elliptic or lance-ovate, sessile, more or less toothed, 5-12 cm. long and 1.2-6 cm. wide.


Heads several; involucre 9-15 mm. high, its bracts sharply pointed; rays 8-14, pale yellow, 1-2 cm. long; pappus tawny, sub-plumose.


Achenes sparsely hirsute and sometimes glandular.

Accepted Name:
Arnica lanceolata Nutt.
Publication: Trans. Amer. Philos. Soc., n. s. 7: 407. 1841.

Synonyms & Misapplications:
(none provided)
ssp. prima – clasping arnica, stream bank arnica
Additional Resources:

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

WA Flora Checklist: Arnica lanceolata checklist entry.

E-Flora BC: Arnica lanceolata atlas page.

CalPhotos: Arnica lanceolata photos.

USDA Plants: Arnica lanceolata information.

25 photographs:
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