Taxon  Report   10785 
Athyrium distentifolium  Opiz  var. americanum  (Butters) Cronquist
American alpine lady fern
Athyrium distentifolium var. americanum
© 2010 Keir Morse
More photos from
CalPhotos / Calflora
Athyrium distentifolium var. americanum
© 2010 Keir Morse
Athyrium distentifolium var. americanum
© 1995 John Game
Athyrium distentifolium var. americanum, a pteridophyte, is a fern that is native to California.

Interactive Distribution Map

Observation Hotline
(observation details + photos)

point, line, or polygon

Plant Characteristics
and Associations
Athyrium distentifolium var. americanum
© 2010 Keir Morse
Genus: Athyrium
Parent Record Athyrium distentifolium
Wetlands: Equally likely to occur in wetlands and non wetlands
Distribution by County 

Add an Observation of  Athyrium distentifolium var. americanum

Name Status:
Accepted by JEF
PLANTS accepted name: Athyrium americanum
Alternate Names:
(according to)

ICPN: Athyrium alpestre ssp. americanum
ICPN: Athyrium alpestre
ICPN: Athyrium alpestre var. americanum
ICPN: Athyrium americanum
More information about  Athyrium distentifolium var. americanum
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on CalPhotos / Google Images
Photos on

Jepson eFlora

Records from the Consortium of California Herbaria


Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

website references from Google

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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Jul 22, 2018).

The information on this page comes from diverse sources. None of the links are sponsored.