Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Washington, east to Idaho, also in the Great Lakes region and eastern North America.
Habitat: Freshwater and slightly brackish water habitats.
Flowers: June-August
Origin: Native
Growth Duration: Annual
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Najas canadensis in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Najas canadensis checklist entry
OregonFlora: Najas canadensis information
E-Flora BC: Najas canadensis atlas page
CalPhotos: Najas canadensis photos