Origin: Native
Conservation Status: Not of concern
[none provided]
 Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho and Montana.
   Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho and Montana. Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Montana and Idaho.
   Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Montana and Idaho.PNW Herbaria: Specimen records of Frangula in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Frangula checklist entry
OregonFlora: Frangula information
E-Flora BC: Frangula atlas page
CalPhotos: Frangula photos