Camassia leichtlinii, the great camas or large camas, is a species of flowering plant in the family Asparagaceae. This herbaceous perennial is native to western North America in British Columbia, Canada and California, Nevada, Oregon and Washington, in the United States.
Great camas is a perennial herbaceous plant that grows from a bulb. It can grow 24–48 inches (61–122 cm) tall. Leaves are long and narrow, stemming from the basal rosette. The inflorescence is a spike-like cluster on a leafless stem that is held above the leaves. It can be mistaken for the more common Camassia quamash, which has an overlapping range.