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Distribution by County   102    
Adiantum jordanii  Müll. Hal.
Adiantum,   maiden hair fern
Adiantum jordanii is a fern that is native to California, and also found in Oregon.
Record Count by County

Alameda: 72 Lake: 19 Riverside: 36 Shasta: 19
Amador: 5 Los Angeles: 249 Sacramento: 11 Solano: 35
Butte: 124 Marin: 189 San Benito: 117 Sonoma: 136
Calaveras: 27 Mariposa: 10 San Bernardino: 4 Stanislaus: 3
Colusa: 10 Mendocino: 45 San Diego: 191 Sutter: 5
Contra Costa: 73 Merced: 6 San Francisco: 16 Tehama: 23
El Dorado: 36 Monterey: 98 San Luis Obispo: 119 Trinity: 11
Fresno: 2 Napa: 67 San Mateo: 115 Tulare: 3
Glenn: 1 Nevada: 35 Santa Barbara: 160 Tuolumne: 23
Humboldt: 14 Orange: 127 Santa Clara: 109 Ventura: 97
Kern: 3 Placer: 37 Santa Cruz: 46 Yolo: 6

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: 12/16/2025).