Origin: Introduced
Conservation Status: Not of concern
[none provided]
Occurring chiefly west of the Cascades crest in Washington; Introduced from British Columbia to Oregon, and in Montana; native in central and eastern North America.PNW Herbaria: Specimen records of Vallisneria in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Vallisneria checklist entry
OregonFlora: Vallisneria information
E-Flora BC: Vallisneria atlas page
CalPhotos: Vallisneria photos