Distribution: Occurring west of the Cascades crest in Washington; Great Plains to the Atlantic Coast.
Habitat: Wetlands, ponds, and lakes
Flowers: June-August
Origin: Introduced from central and eastern North America
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Generalist
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PNW Herbaria: Specimen records of Sagittaria graminea in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Sagittaria graminea checklist entry
OregonFlora: Sagittaria graminea information
E-Flora BC: Sagittaria graminea atlas page
CalPhotos: Sagittaria graminea photos