Calflora, a 501c3 non-profit
Distribution by County   4041    
Helianthus bolanderi  A. Gray
Bolander's sunflower,   Serpentine sunflower
Helianthus bolanderi is an annual or perennial herb that is native to California, and found only slightly beyond California borders.
Record Count by County

Amador: 1 Lake: 26 Sacramento: 2 Solano: 4
Butte: 29 Lassen: 2 San Benito: 9 Sonoma: 4
Colusa: 20 Mariposa: 3 San Joaquin: 3 Stanislaus: 2
Contra Costa: 1 Mendocino: 2 San Luis Obispo: 8 Sutter: 4
El Dorado: 3 Merced: 3 Santa Barbara: 5 Tehama: 15
Fresno: 1 Mono: 2 Santa Clara: 10 Trinity: 7
Glenn: 8 Napa: 16 Santa Cruz: 1 Tuolumne: 16
Humboldt: 1 Placer: 3 Shasta: 2 Yolo: 7
Kern: 1 Plumas: 7 Sierra: 4 Yuba: 1

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).