[Wikipedia] Origins: Arctotheca prostrata is a plant in the family Asteraceae native to Cape Province in South Africa. Common names include prostrate Cape weed and creeping bear's-ear. It is listed as an invasive weed in California and Australia. (link added by Jessica Johnston)
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).