Elsewhere, the plant can be found from Nebraska to New Mexico, California, and Oregon.
Mountain lily is a stemless perennial from short, fleshy roots.
Each plant has about a dozen grasslike leaves about six inches long that overtop the flowers, and are surrounded at the base by papery white sheaths. The fragrant white flowers are up to one and a half inches wide, and include a slender tube nearly four inches long. At the bottom of the tube are the ovaries and seed capsules which mature below ground. Seeds are black. This species likes sandy or gravelly shortgrass prairies and foothills that are moderately or heavily grazed.