Checklist » Dryopteridaceae » Dryopteris filix-mas
Last updated 6/4/2020 by David Giblin.
Dryopteris filix-mas (L.) Schott[FNA2, HC, HC2]
male fern

Publication: Gen. Fil. plate 67. 1834.

Origin: Native

selected vouchers: WTU

Notes: FNA2: "The taxonomy of Dryopteris filix-mas is not well understood. In North America, this fern has been considered both an auto- and an allopolyploid and may be composed of at least two closely related taxa. Plants in the northeast and northwest are tetraploid. These differ morphologically and ecologically from a taxon of unknown chromosome number in the southwestern Rocky Mountains. The Rocky Mountain taxon closely resembles the Mexican D . pseudofilix-mas (Fée) Rothmaler. Dryopteris filix-mas also occurs in Europe, and it is known to be an allopolyploid of D . caucasica (A. Braun) Fraser-Jenkins & Corley × oreades Fomin."

References: (none)

Synonyms & Misapplied Names:
Polypodium filix-mas L.