Calflora, a 501c3 non-profit
Distribution by County   4040    
Helianthus annuus  L.
Common sunflower,   Hairy leaved sunflower,   Sunflower
Helianthus annuus is an annual herb that is native to California, and also found elsewhere in North America and beyond.
Record Count by County

Alameda: 3 Lake: 1 Plumas: 4 Sierra: 4
Alpine: 12 Lassen: 52 Riverside: 121 Siskiyou: 2
Amador: 2 Los Angeles: 195 Sacramento: 49 Solano: 12
Butte: 8 Madera: 27 San Benito: 16 Sonoma: 2
Calaveras: 2 Marin: 3 San Bernardino: 197 Stanislaus: 63
Colusa: 1 Mariposa: 4 San Diego: 101 Sutter: 4
Contra Costa: 17 Merced: 77 San Francisco: 1 Tehama: 3
El Dorado: 2 Modoc: 7 San Joaquin: 59 Trinity: 1
Fresno: 133 Mono: 7 San Luis Obispo: 19 Tulare: 31
Glenn: 2 Monterey: 8 San Mateo: 2 Tuolumne: 6
Imperial: 14 Napa: 2 Santa Barbara: 39 Ventura: 72
Inyo: 47 Nevada: 5 Santa Clara: 5 Yolo: 11
Kern: 74 Orange: 96 Santa Cruz: 2 Yuba: 2
Kings: 30 Placer: 7 Shasta: 4

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: 11/21/2024).