Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains, Great Plains, and Great Lakes region.
Habitat: Usually in clay soils in riparian areas.
Flowers: May-July
Origin: Native
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Elymus lanceolatus ssp. riparius in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Elymus lanceolatus ssp. riparius checklist entry.
OregonFlora: Elymus lanceolatus ssp. riparius information.
E-Flora BC: Elymus lanceolatus ssp. riparius atlas page.
CalPhotos: Elymus lanceolatus ssp. riparius photos.
USDA Plants: Elymus lanceolatus ssp. riparius information.