[Wikipedia] Range: In California Fraxinus velutina is found in the southern Sierra Nevada, the Mojave and Colorado Deserts, and the California chaparral and woodlands ecoregion, with scattered populations extending into Baja 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: 03/28/2025).