Gunnison's mariposa lily

Calochortus gunnisonii is a species of flowering plant in the Liliaceae family. It is commonly referred to as Gunnison's mariposa lily and is native to the western United States. The plant is found in the Rocky Mountains and Black Hills regions, specifically in Arizona, New Mexico, Utah, Colorado, Wyoming, Montana, South Dakota, and Washington state. It was first described in 1871 by S. Watson.