Calflora, a 501c3 non-profit
Distribution by County   7508    
Senecio jacobaea  L.
Stinking willie,   Tansy ragwort
Senecio jacobaea is a perennial herb that is not native to California.
Cal-IPC rating: limited

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]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 04/01/2023).