Distribution: Occurring on both sides of the Cascades crest in Washington, including the Olympic Mountains and the northeastern region; Alaska to California, east to the Rocky Mountains, also in northeastern North America.
Habitat: Streambanks, moist woods and meadows from middle elevations to the subalpine.
Flowers: June-August
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Apomixis, bumblebees, butterflies
[none provided]
Publication: Fl. N. Amer. (1993+). 21: 373. 2006.
Arnica amplexicaulis Nutt. ssp. amplexicaulis
Arnica amplexicaulis Nutt. var. amplexicaulis [HC]
Arnica amplexicaulis Nutt. var. piperi H. St. John & F.A. Warren [HC]
Arnica amplexifolia Rydb. ssp. prima Maguire
PNW Herbaria: Specimen records of Arnica lanceolata ssp. prima in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Arnica lanceolata ssp. prima checklist entry
OregonFlora: Arnica lanceolata ssp. prima information
E-Flora BC: Arnica lanceolata ssp. prima atlas page
CalPhotos: Arnica lanceolata ssp. prima photos
