[Wikipedia] Range: It is native to southwestern Canada (Saskatchewan, Alberta, British Columbia) and the western United States as far south as Colorado, Coconino County in Arizona, and Tulare County in California). (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: 03/30/2025).
