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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: 47 Lake: 12 Placer: 6 Shasta: 20
Amador: 7 Lassen: 2 Plumas: 15 Sierra: 1
Butte: 121 Los Angeles: 144 Riverside: 63 Siskiyou: 5
Calaveras: 7 Madera: 6 Sacramento: 6 Solano: 4
Colusa: 1 Marin: 76 San Benito: 460 Sonoma: 26
Contra Costa: 37 Mariposa: 7 San Bernardino: 34 Stanislaus: 5
Del Norte: 3 Mendocino: 12 San Diego: 111 Sutter: 3
El Dorado: 18 Merced: 2 San Francisco: 6 Tehama: 13
Fresno: 29 Mono: 4 San Luis Obispo: 74 Trinity: 2
Glenn: 1 Monterey: 146 San Mateo: 84 Tulare: 91
Humboldt: 13 Napa: 23 Santa Barbara: 91 Tuolumne: 106
Inyo: 5 Nevada: 2 Santa Clara: 45 Ventura: 72
Kern: 34 Orange: 50 Santa Cruz: 28 Yuba: 5

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. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/11/2025).