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