Calflora, a 501c3 non-profit
Distribution by County   3960    
Grindelia hirsutula  Hook. & Arn.
Gumweed,   Hairy gumweed
Grindelia hirsutula is a perennial herb that is native to California, and endemic (limited) to California.
Record Count by County

Alameda: 84 Kings: 2 Orange: 12 Shasta: 8
Alpine: 1 Lake: 10 Placer: 4 Sierra: 1
Amador: 11 Lassen: 1 Plumas: 1 Solano: 24
Butte: 29 Los Angeles: 38 Sacramento: 6 Sonoma: 49
Calaveras: 6 Madera: 2 San Benito: 99 Stanislaus: 14
Colusa: 12 Marin: 198 San Diego: 41 Sutter: 3
Contra Costa: 60 Mariposa: 3 San Francisco: 70 Tehama: 10
El Dorado: 7 Mendocino: 24 San Joaquin: 13 Trinity: 2
Fresno: 5 Merced: 13 San Luis Obispo: 72 Tulare: 1
Glenn: 8 Modoc: 1 San Mateo: 90 Tuolumne: 7
Humboldt: 58 Monterey: 60 Santa Barbara: 104 Ventura: 27
Inyo: 2 Napa: 27 Santa Clara: 79 Yolo: 4
Kern: 13 Nevada: 6 Santa Cruz: 37 Yuba: 2

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).