Calflora, a 501c3 non-profit
Distribution by County   4204    
Holocarpha heermannii  (Greene) D. D. Keck
Heermann's tarweed
Holocarpha heermannii is an annual herb that is native to California, and endemic (limited) to California.

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2022. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 12/09/2022).