Calflora, a 501c3 non-profit
Distribution by County   6237    
Pentagramma triangularis  (Kaulf.) Yatsk., Windham & E. Wollenw.  ssp. triangularis 
Gold back fern
Pentagramma triangularis ssp. triangularis is a fern that is native to California, and also found elsewhere in western North America.
Record Count by County

Alameda: 48 Lassen: 2 Plumas: 6 Sierra: 1
Amador: 7 Los Angeles: 148 Riverside: 63 Siskiyou: 1
Butte: 96 Madera: 6 Sacramento: 6 Solano: 3
Calaveras: 7 Marin: 76 San Benito: 460 Sonoma: 26
Colusa: 1 Mariposa: 8 San Bernardino: 41 Stanislaus: 6
Contra Costa: 37 Mendocino: 12 San Diego: 115 Sutter: 2
El Dorado: 18 Merced: 2 San Francisco: 5 Tehama: 12
Fresno: 27 Mono: 4 San Luis Obispo: 75 Trinity: 2
Glenn: 1 Monterey: 147 San Mateo: 84 Tulare: 91
Humboldt: 12 Napa: 25 Santa Barbara: 97 Tuolumne: 106
Inyo: 8 Nevada: 2 Santa Clara: 45 Ventura: 71
Kern: 33 Orange: 48 Santa Cruz: 28 Yuba: 6
Lake: 12 Placer: 6 Shasta: 17

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]. 2025. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 01/29/2025).