Fr: dryoptère arquée
Provincial Status: LN
Range: Boreal eNA; thr. Nfld., N to cLab.
[=Aspidium campylopterum Kunze (basionym)]
[=Aspidium spinulosum (O.F.Müll.) Sw. var. americanum Fisch. ex Kunze]
[=Aspidium spinulosum (O.F.Müll.) Sw. var. concordianum (Davenp.) Eastman]
[=Dryopteris americana (Fisch. ex Kunze) Clute, nom. inval., nom. provis.]
[=Dryopteris austriaca (Jacq.) Woyn. ex Schinz & Thell.]
[=Dryopteris austriaca (Jacq.) Woyn. ex Schinz & Thell. var. concordiana (Davenp.) C.V.Morton]
[=Dryopteris dilatata (Hoffm.) A.Gray subsp. americana (Fisch. ex Kunze) Hultén]
[=Dryopteris dilatata (Hoffm.) A.Gray subsp. campylopteris (Kunze) C.V.Morton]
[=Dryopteris dilatata (Hoffm.) A.Gray var. americana (Fisch. ex Kunze) Benedict]
[=Dryopteris intermedia (Muhl. ex Willd.) A.Gray forma concordiana (Davenp.) Clute]
[=Dryopteris intermedia (Muhl. ex Willd.) A.Gray var. concordiana (Davenp.) M.Broun]
[=Dryopteris spinulosa (O.F.Müll.) Watt. var. americana (Fisch. ex Kunze) Fernald]
[=Dryopteris spinulosa (O.F.Müll.) Watt. var. concordiana (Davenp.) Eastman]
[=Filix spinulosa (O.F.Müll.) Farw. var. americana (Fisch. ex Kunze) Farw.]
[=Filix spinulosa (O.F.Müll.) Farw. var. concordiana (Davenp.) Farw.]
[=Filix-mas spinulosa (O.F.Müll.) Farw. var. americana (Fisch. ex Kunze) Farw.]
[=Nephrodium spinulosum (Retz.) Desv. forma concordianum (Davenp.) Clute]
[=Nephrodium spinulosum (Retz.) Desv. var. concordianum Davenp.]
[=Polypodium austriacum auctt., non Jacq.]
[=Thelypteris dilatata (Hoffm.) House var. americana (Fisch. ex Kunze) House]
[=Thelypteris spinulosa (O.F.Müll.) Nieuwl. var. americana (Fisch. ex Kunze) Weath.]
[=Thelypteris spinulosa (O.F.Müll.) Nieuwl. var. concordiana (Davenp.) Weath.]
[Dryopteris campyloptera is an allotetraploid derived from the diploid D. expansa and D. intermedia (FNA 2:287). An unnamed hybrid of D. campyloptera × D. cristata is reported from Nfld. from within the overlapping range of the parent species.]