Canada's Plant Hardiness Site

Dryopteridaceae wood fern family
Dryopteris expansa (C.Presl) Fraser-Jenk. & Jermy
En: spreading woodfern, northern woodfern, northern buckler fern, spiny woodfern, broad buckler fern;
Fr: dryoptere dressee, dryopteris elargi, dryopteris etale

• [=Dryopteris assimilis S.Walker]
• [=Dryopteris austriaca auct., non Woyn. ex Schinz & Thell.]
• [=Dryopteris austriaca (Jacq.) Woyn. ex Schinz & Thell. subsp. assimilis (S.Walker) O.Bolòs et al., comb.illeg]
• [=Dryopteris carthusiana (Vill.) H.P.Fuchs subsp. assimilis (S.Walker) O.Bolòs et al.]
• [=Dryopteris dilatata auct., non (Hoffm.) A.Gray]
• [=Dryopteris dilatata (Hoffm.) A.Gray subsp. americana (Fisch. ex Kunze) Hultén]
• [=Dryopteris spinulosa (O.F.Müll.) Watt subsp. assimilis (S.Walker) Schidlay]
• [=Dryopteris spinulosa (O.F.Müll.) Watt var. americana (Fisch. ex Kunze) Fernald, p.p]
• [=Dryopteris spinulosa (O.F.Müll.) Watt var. dilatata auct., non (Hoffm.) G.Lawson]
• [=Lastrea dilatata (Hoffm.) C.Presl var. alpina T.Moore]
• [=Lastrea expansa (C.Presl) C.Presl]
• [=Nephrodium expansum C.Presl - basionym]
• [=Polypodium dilatatum auct., non Hoffm.]