Distribution: Occurring east of the Cascades crest in Washington, where documented in Spokane County; central British Columbia to eastern Washington, east across northern North America to the Great Lakes area.
Habitat: Moist meadows and riparian areas.
Flowers: July-September
Origin: Introduced from Europe
Growth Duration: Biennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Cirsium palustre in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Cirsium palustre checklist entry
OregonFlora: Cirsium palustre information
E-Flora BC: Cirsium palustre atlas page
CalPhotos: Cirsium palustre photos