[americansouthwest.net] Description, Habitat, Range: Euphorbia lurida is part of the group of spurges with erect rather than prostrate stems, radially-symmetric involucres, and horn-like (rather than petal-like) appendages on the involucral glands. It is found in wooded environments, mostly in central Arizona and southern 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: 04/09/2025).