Distribution: Occurring chiefly west of the Cascades crest in Washington, also in the Blue Mountains of southeast Washington; British Columbia to northeast Oregon, east across Canada to the Atlantic Coast.
Habitat: Damp woods and swampy areas from the lowlands to middle elevations in the mountains.
Flowers: March-July
Origin: Native
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Petasites frigidus var. palmatus in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Petasites frigidus var. palmatus checklist entry.
E-Flora BC: Petasites frigidus var. palmatus atlas page.
CalPhotos: Petasites frigidus var. palmatus photos.
USDA Plants: Petasites frigidus var. palmatus information.