Page author: David Giblin
Athyrium distentifolium ssp. americanum
American alpine lady-fern
Specimens
Photos
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains; also in also in northeastern Canada and Greenland.
Habitat: Open talus and stream banks, mid-montane to subalpine.
Spores: May-September
Origin: Native
Conservation Status: Not of concern
Description:
[none provided]
Accepted Name:
Athyrium distentifolium Tausch ex Opiz ssp. americanum (Butters) Hultén
Publication: Bot. Not. 126(4): 462. 1973.
Publication: Bot. Not. 126(4): 462. 1973.
Synonyms & Misapplications:
Athyrium alpestre (Hoppe) Clairville var. americanum Butters [FNA2]
Athyrium americanum (Butters) Maxon [KZ99, Peck]
Athyrium distentifolium Tausch ex Opiz var. americanum (Butters) Cronquist [VPPNW1, HC]
Athyrium americanum (Butters) Maxon [KZ99, Peck]
Athyrium distentifolium Tausch ex Opiz var. americanum (Butters) Cronquist [VPPNW1, HC]
Additional Resources:
PNW Herbaria: Specimen records of Athyrium distentifolium ssp. americanum in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Athyrium distentifolium ssp. americanum checklist entry
OregonFlora: Athyrium distentifolium ssp. americanum information
E-Flora BC: Athyrium distentifolium ssp. americanum atlas page
CalPhotos: Athyrium distentifolium ssp. americanum photos
16 photographs:
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