Calflora, a 501c3 non-profit
Distribution by County   7524    
Senecio vulgaris  L.
Common groundsel,   Old man in the spring,   Old man of spring
Senecio vulgaris is an annual herb that is not native to California.
Record Count by County

Alameda: 63 Lake: 23 Plumas: 1 Sierra: 3
Amador: 7 Lassen: 1 Riverside: 96 Solano: 59
Butte: 112 Los Angeles: 202 Sacramento: 28 Sonoma: 69
Calaveras: 2 Madera: 7 San Benito: 106 Stanislaus: 16
Colusa: 9 Marin: 89 San Bernardino: 43 Sutter: 10
Contra Costa: 45 Mariposa: 25 San Diego: 228 Tehama: 53
Del Norte: 2 Mendocino: 40 San Francisco: 66 Trinity: 4
El Dorado: 25 Merced: 50 San Joaquin: 6 Tulare: 48
Fresno: 68 Mono: 1 San Luis Obispo: 83 Tuolumne: 9
Glenn: 6 Monterey: 132 San Mateo: 89 Ventura: 89
Humboldt: 23 Napa: 48 Santa Barbara: 100 Yolo: 55
Imperial: 1 Nevada: 15 Santa Clara: 78 Yuba: 13
Kern: 52 Orange: 100 Santa Cruz: 32
Kings: 2 Placer: 21 Shasta: 8

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).