Calflora, a 501c3 non-profit
Distribution by County   7523    
Senecio triangularis  Hook.
Arrow leaved ragwort,   Arrowhead butterweed,   Arrowleaf ragwort,   Groundsel
Senecio triangularis is a perennial herb that is native to California, and also found elsewhere in North America and beyond.
Record Count by County

Alpine: 35 Glenn: 1 Modoc: 2 Sierra: 45
Amador: 7 Humboldt: 24 Mono: 76 Siskiyou: 19
Butte: 28 Inyo: 43 Nevada: 60 Tehama: 14
Calaveras: 2 Lake: 1 Placer: 95 Trinity: 21
Colusa: 1 Lassen: 17 Plumas: 67 Tulare: 141
Del Norte: 2 Los Angeles: 11 Riverside: 8 Tuolumne: 44
El Dorado: 101 Madera: 15 San Bernardino: 42
Fresno: 73 Mariposa: 53 Shasta: 19

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: 12/03/2024).