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Distribution by County   6234    
Pentagramma triangularis  (Kaulf.) Yatsk., Windham & E. Wollenw.
Gold back fern,   Goldenback fern
Pentagramma triangularis is a fern that is native to California, and also found elsewhere in western North America.
Record Count by County

Alameda: 96 Lake: 24 Riverside: 124 Siskiyou: 11
Amador: 48 Los Angeles: 339 Sacramento: 34 Solano: 34
Butte: 328 Madera: 77 San Benito: 490 Sonoma: 215
Calaveras: 56 Marin: 442 San Bernardino: 75 Stanislaus: 10
Colusa: 6 Mariposa: 74 San Diego: 393 Sutter: 8
Contra Costa: 93 Mendocino: 59 San Francisco: 32 Tehama: 77
Del Norte: 8 Merced: 5 San Joaquin: 1 Trinity: 21
El Dorado: 109 Mono: 8 San Luis Obispo: 127 Tulare: 191
Fresno: 123 Monterey: 209 San Mateo: 215 Tuolumne: 183
Glenn: 4 Napa: 55 Santa Barbara: 160 Ventura: 165
Humboldt: 67 Nevada: 53 Santa Clara: 136 Yolo: 4
Inyo: 11 Orange: 231 Santa Cruz: 76 Yuba: 26
Kern: 69 Placer: 72 Shasta: 52
Kings: 1 Plumas: 37 Sierra: 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: 12/09/2025).