Castilleja cinerea is a perennial herb (hemiparasitic) that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
Federal status: Threatened.
[Wikipedia] Threats: The Castilleja cinerea plant is a federally listed threatened species. Threats to its survival include development of its habitat for human use, recreation, off-road vehicles, logging, grazing, mining, and invasive species of plants. (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: 03/29/2025).
one or more occurrences