Fr: thélyptère des marais d'Amerique
Provincial Status: N
Range: Temp.-sBoreal eNA; N thr. w/nw/c/s/eNfld.
[=Lastrea thelypteris (L.) Bory var. pubescens G.Lawson (basionym)]
[=Dryopteris thelypteris (L.) A.Gray forma haleana (Fernald) C.F.Reed]
[=Dryopteris thelypteris (L.) A.Gray subsp. pubescens (G.Lawson) Hultén]
[=Dryopteris thelypteris (L.) A.Gray var. haleana (Fernald) M.Broun ex Weath.]
[=Dryopteris thelypteris (L.) A.Gray var. kamtschatica C.Chr.]
[=Dryopteris thelypteris (L.) A.Gray var. pubescens (G.Lawson) A.Prince ex Weath.]
[=Dryopteris thelypteris (L.) A.Gray var. pubescens (G.Lawson) Nakai 1931, nom. inval., pro syn.]
[=Dryopteris tremula Christ]
[=Filix-mas thelypteris (L.) Farw. var. pubescens (G.Lawson) Farw.]
[=Lastrea palustris (Schott) Sm.]
[=Thelypteris confluens (Thunb.) C.V.Morton var. pubescens (G.Lawson) J.S.Pringle]
[=Thelypteris palustris Schott forma pubescens (G.Lawson) Clute]
[=Thelypteris palustris Schott subsp. pubescens (G.Lawson) Holub]
[=Thelypteris palustris Schott subsp. pubescens (G.Lawson) Fraser-Jenk. 1997, nom. illeg. isonym., non Holub 1969]
[=Thelypteris palustris Schott var. haleana Fernald]
[=Thelypteris thelypterioides sensu Rouleau, 1968, non (Michx.) Holub]
[Thelypteris palustris var. pubescens is known from fens and alder thickets in Nfld. (Bouchard et al., 1991). Rouleau (1968) listed this species as Thelypteris thelypteridioides (Michx.) Holub., but A. Smith (FNA 1993) explains that, although this name is applied to Thelypteris palustris, Tryon et al. (1980) have shown that this application was based on an incorrect typification by C.V. Morton (1967) FNA 2:213 (1993). FNA now lists it as a synonym of Thelypteris noveboracensis. Thelypteris palustris var. palustris occurs only in Eurasia.]