Calflora, a 501c3 non-profit
Distribution by County   10785    
Athyrium distentifolium  Opiz  var. americanum  (Butters) Cronquist
American alpine lady fern
Athyrium distentifolium var. americanum is a fern that is native to California.
Record Count by County

Alpine: 12 Inyo: 5 Nevada: 8 Tehama: 3
Amador: 1 Madera: 8 Placer: 5 Trinity: 3
Butte: 7 Mariposa: 6 Plumas: 5 Tulare: 9
El Dorado: 6 Mendocino: 1 Shasta: 7 Tuolumne: 8
Fresno: 10 Modoc: 1 Sierra: 4
Humboldt: 1 Mono: 16 Siskiyou: 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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 11/23/2024).