Origin: Native
Conservation Status: Not of concern
[none provided]
Occurring east of the Cascades crest in southern Washington; southern Washington to Oregon, east to Idaho.
Occurring chiefly in the Columbia River Gorge in Washington, but disjunct in the northern Olympic Peninsula; disjunct in southwestern British Columbia and the northern Olympic Peninsula, otherwise southern Washington to central California.PNW Herbaria: Specimen records of Tonella in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Tonella checklist entry
OregonFlora: Tonella information
E-Flora BC: Tonella atlas page
CalPhotos: Tonella photos