[Wikipedia] Range, Habitat: Phacelia fremontii (Frémont's phacelia) is a flowering plant in the family Boraginaceae native to the southwestern United States. In California, its range includes the Mojave Desert, the San Joaquin Valley, the Coast Ranges, and the Sierra Nevada.[2][3] It was named for John C. Frémont.[4] The plant grows on sandy or gravelly soils in several habitat types, including scrub and grassland.[5] (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).