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Distribution by County   100    
Adiantum aleuticum  (Rupr.) C. A. Paris
Five finger fern
Adiantum aleuticum is a fern that is native to California, and also found elsewhere in North America and beyond.
Record Count by County

Alameda: 5 Madera: 2 Riverside: 3 Siskiyou: 25
Amador: 3 Marin: 70 San Bernardino: 18 Solano: 1
Butte: 24 Mariposa: 15 San Francisco: 1 Sonoma: 62
Contra Costa: 7 Mendocino: 67 San Luis Obispo: 18 Tehama: 5
Del Norte: 24 Mono: 1 San Mateo: 74 Trinity: 36
El Dorado: 9 Monterey: 63 Santa Barbara: 40 Tulare: 11
Fresno: 7 Napa: 13 Santa Clara: 28 Tuolumne: 2
Humboldt: 103 Nevada: 13 Santa Cruz: 97 Yuba: 2
Inyo: 3 Placer: 3 Shasta: 10
Los Angeles: 19 Plumas: 34 Sierra: 18

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: 11/21/2024).