[Wikipedia] Europe Native, Introduced Elsewhere, Weed: It is native to parts of Europe, especially the Mediterranean Basin and it is known elsewhere, such as North America, as an introduced species and a common weed. It grows in many types of habitat, particularly disturbed areas. (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).
