Distribution: Occurring east of the Cascades crest in northeastern Washington; British Columbia to Washington, also in California, east to the northern Rocky Mountains, Great Plains, and eastern North America.
Habitat: Roadsides, fields, ditches, and other disturbed, open areas.
Flowers: July-October
Origin: Introduced
Conservation Status: Not of concern
Pollination: Bees, flies, beetles, wasps
[none provided]
PNW Herbaria: Specimen records of Carduus acanthoides ssp. acanthoides in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Carduus acanthoides ssp. acanthoides checklist entry
OregonFlora: Carduus acanthoides ssp. acanthoides information
E-Flora BC: Carduus acanthoides ssp. acanthoides atlas page
CalPhotos: Carduus acanthoides ssp. acanthoides photos
