Checklist » Athyriaceae » Athyrium filix-femina ssp. cyclosorum
Last updated 5/4/2020 by David Giblin.
Athyrium filix-femina (L.) Roth ex Mertens ssp. cyclosorum (Rupr.) C. Chr.[HC2, ILBC5, KZ99]
lady fern, northwestern lady fern

Publication: Fl. Aleutian Isl. 50 1937.

Origin: Native

selected vouchers: WTU

Notes: FNA2: "Athyrium filix-femina var. cyclosorum is most similar to the European var. filix-femina ; it differs in having broader, nearly equilateral pinnules and medial to supramedial sori. The variety is distributed in northwestern North America with disjunct populations in northwestern Quebec and Ontario."

References: (none)

Synonyms & Misapplied Names:
Athyrium alpestre (Hoppe) Clairville ex T. Moore var. cyclosorum (Rupr.) T. Moore
Athyrium filix-femina (L.) Roth ex Mertens var. cyclosorum Rupr.[FNA2]