Nomenclature: wfo-1200107312

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Taxonomy: Accepted in 2025-06 classification

Occurs in: 2024-12 : 2025-06

Placement: Code > Plantae Haeckel > Pteridobiotina Britton & Brown > Polypodiophyta Cronquist, Takht. & Zimmerm. > Polypodiopsida Cronquist, Takht. & W.Zimm. > Polypodiidae Cronquist, Takht. & W.Zimm. > Polypodiales Link > Aspleniineae H.Schneid. & C.J.Rothf. > Athyriaceae Alston > Pseudathyrium Newm. > Pseudathyrium alpestre (Hoppe) Newman > Pseudathyrium alpestre subsp. americanum (Butters) comb.ined.

Synonyms

• Athyrium distentifolium subsp. americanum (Butters) Hultén
• Phegopteris alpestris var. americana (Butters) Jeps.
• Athyrium alpestre var. americanum Butters
• Athyrium alpestre var. gaspense Fernald
• Athyrium distentifolium var. americanum (Butters) B.Boivin
• Athyrium distentifolium var. americanum (Butters) Cronquist
• Athyrium alpestre subsp. americanum (Butters) Lellinger
• Phegopteris rhaetica var. americana (Butters) Farw.
• Athyrium americanum (Hoppe) Maxon

Taxonomic References

• database : The Pteridophyte Phylogeny Group (PPG). Based on data supplied by Pteridophyte Phylogeny Group Nov 2024

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