Calochortus simulans is a perennial herb (bulb) that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.3 (rare, threatened, or endangered in CA and elsewhere).
[Wikipedia] Distribution: Calochortus simulans is a California species of flowering plant in the lily family known by the common name San Luis Obispo mariposa lily, not to be confused with the San Luis mariposa lily C. obispoensis.
Distribution
It is native to San Luis Obispo County, California, and its range extends south into the northern part of Santa Barbara County.[3][4][5] (link added by Mary Ann Machi)
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2025.The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 03/28/2025).
one or more occurrences