Gunnison's mariposa lily

''Calochortus eurycarpus'' is a North American species of flowering plant in the lily family. It is native to the western United States: Montana, Idaho, eastern Oregon, western Wyoming, northeastern Nevada and southeastern Washington .

''Calochortus eurycarpus'' is a bulb-forming perennial with straight stems up to 50 cm tall. Flowers are cream-colored or pale lavender with a conspicuous reddish-purple blotch on each petal.