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
Record Count by County

Amador: 2 Marin: 2 Santa Clara: 1 Tehama: 1
Del Norte: 162 Mendocino: 106 Santa Cruz: 1 Trinity: 18
Humboldt: 81 San Benito: 1 Shasta: 1 Tulare: 4
Inyo: 1 San Francisco: 1 Siskiyou: 1
Lake: 4 San Mateo: 1 Sonoma: 3

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: https://www.calflora.org/   (Accessed: 11/23/2024).