Layia munzii is an annual herb that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
[Wikipedia] Range, Threats: It is endemic to the San Joaquin Valley in California, where it has been eliminated from most of its native range by the conversion of valley land to agriculture. A sizable population still exists on the grasslands of the Carrizo Plain in eastern San Luis Obispo County however. (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