Calochortus excavatus is a perennial herb (bulb) that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).
[Wikipedia] Description, Distribution: Calochortus excavatus is a species of flowering plant in the lily family known by the common name Inyo County star-tulip. The flowering plant is endemic to eastern California, where it is known from several reduced and threatened populations in Mono and Inyo Counties.[5] It occupies grassy habitats in alkaline Shadscale scrub plant communities, alongside Atriplex and other playa halophyte flora, primarily in Owens Valley.[4]
The species is listed as endangered, threatened by the loss of local groundwater.[6] (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