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Taxon  Report  
Athyrium distentifolium  Opiz  var. americanum  (Butters) Cronquist
American alpine lady fern
Athyrium distentifolium var. americanum is a fern that is native to California.
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
Parent: Athyrium distentifolium
Genus: Athyrium
Family: Athyriaceae  
(Dryopteridaceae)
Category: fern  
PLANTS group:Fern
Jepson eFlora section: fern

Wetlands: Equally likely to occur in wetlands and non wetlands
Name Status:
Accepted by JEF
Alternate Names:
ICPNAthyrium alpestre ssp. americanum
JEFAthyrium alpestre var. americanum
ICPNAthyrium alpestre
PLANTSAthyrium americanum
Information about  Athyrium distentifolium var. americanum from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (ATAM)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/03/2023).