Achnatherum hymenoides (syn: Oryzopsis hymenoides)
Indian Ricegrass

Family: Poaceae (Grass family)

Photo taken near Trinidad, sandy area (old sand dunes) within 100 meters of the Columbia River

Plant:

The seeds were ground, mixed with water and cooked into a mush by the Montana Indians, Navajo, Hopi, Apache, Paiute, and others.