Calflora, a 501c3 non-profit
Distribution by County   2702    
Descurainia pinnata  (Walter) Britton  ssp. halictorum  (Cockerell) Detling
Alkali western tansy mustard,   Western tansymustard
Descurainia pinnata ssp. halictorum is an annual herb that is native 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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 02/25/2024).