Distribution: Occurring in only a few counties in central and eastern Washington; Washington south to Oregon, east to Montana, south to Arizona and New Mexico.
Habitat: Meadows, grasslands, and forest openings.
Flowers: May-June
Origin: Native
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Clematis hirsutissima in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Clematis hirsutissima checklist entry.
E-Flora BC: Clematis hirsutissima atlas page.
CalPhotos: Clematis hirsutissima photos.
USDA Plants: Clematis hirsutissima information.