Bulb-forming perennial with a single grass-like stem up to 20 in tall bearing 1-5 flowers.
Grass-like leaves, about as long as the flowering stem, growing from the base.
Three large white petals each with a prominent purple blotch in the center.
June through August.
Mountain meadows, grasslands, and open forest.
Attracts bees, wasps, bee flies, and beetles. Oregon Bee Atlas participants have documented many of the bee genera known from Oregon on Calochortus, including species of Dufourea which are specialized pollen foragers of some Calochortus species.