Petasites
butterbur, coltsfoot
Specimens
Photos
Origin: Native
Conservation Status: Not of concern
Description:
[none provided]
Accepted Name:
Petasites
Publication: Gard. Dict. Abr. ed. 4. vol. 3. 1754.
Publication: Gard. Dict. Abr. ed. 4. vol. 3. 1754.
Synonyms & Misapplications:
(none provided)
Species in Petasites:
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Petasites frigidus – alpine butterbur, sweet coltsfoot
Occurring in forested and mountainous areas throughout Washington; Alaska to California, east across the northern half of North America to the Atlantic Coast; circumboreal. -
var. frigidus – alpine butterbur, arctic butterbur, sweet coltsfoot Occurring in the Olympic and Cascades Mountains in Washington; Alaska to northern Oregon, east to Saskatchewan.
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var. palmatus – western coltsfoot 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.
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var. sagittatus – arrowhead sweet coltsfoot, arrowleaf coltsfoot Occurring east of the Cascades crest along the northern border in Washington; Alaska to northeastern Washington, east to the northern Great Plains, Great Lakes region, and northeastern North America.
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Petasites japonicus – Japanese sweet coltsfoot Occurring west of the Cascades crest in Washington; southwestern British Columbia to Oregon.
Additional Resources:
PNW Herbaria: Specimen records of Petasites in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Petasites checklist entry
OregonFlora: Petasites information
E-Flora BC: Petasites atlas page
CalPhotos: Petasites photos
121 photographs:
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