Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska to Washington, east to Alberta, Idaho, Montana, Wyoming, and Utah, northern Great Plains, Great Lakes region, and eastern North America.
Habitat: Lakes, slow streams, and alkaline water.
Flowers: June-August
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
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PNW Herbaria: Specimen records of Potamogeton friesii in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Potamogeton friesii checklist entry
OregonFlora: Potamogeton friesii information
E-Flora BC: Potamogeton friesii atlas page
CalPhotos: Potamogeton friesii photos