[Wikipedia] Range: It is native to the inland mountains of Oregon and California, where its distribution extends from the Klamath Mountains through the Sierra Nevada to the Transverse Ranges. (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: 03/31/2025).
