Struthiopteris filicastrum f. pennsylvanica (Willd.) Sved., Alm & Örtendahl form synonym

Struthiopteris germanica var. pensylvanica Lowe variety synonym

Onoclea nodulosa Schkuhr species heterotypic synonym

Struthiopteris germanica var. pubescens (Terry) A.A.Eaton variety synonym

Struthiopteris struthiopteris var. pensylvanica (Willd.) Farw. variety synonym

Onoclea struthiopteris f. obtusilobata Clute form synonym

Onoclea struthiopteris (L.) Roth species synonym

Struthiopteris europaea Hornem. species synonym

Struthiopteris heterophylla Opiz species synonym

Struthiopteris pubescens (Terry) Clute species synonym

Struthiopteris germanica Willd. species synonym

Onoclea struthiopteris var. pubescens (Terry) Clute variety synonym

Struthiopteris pensylvanica f. pubescens (Terry) Clute form synonym

Pteretis nodulosa var. pubescens Clute variety synonym

Onoclea struthiopteris (L.) Hoffm. species synonym

Pteris pensylvanica subsp. obtusilobata (Clute) Fernald subspecies synonym

Pteris struthiopteris subsp. obtusilobata (Clute) Farw. subspecies synonym

Pteretis nodulosa (Schkuhr) Nieuwl. species heterotypic synonym

Struthiopteris cordi Nieuwl. species synonym

Onoclea pensylvanica (Willd.) Sm. species synonym

Struthiopteris germanica f. obtusilobata Clute form synonym

Onoclea struthiopteris f. pubescens (Terry) B.Boivin form synonym

Onoclea struthiopteris f. obtusilobata (Clute) B.Boivin form synonym

Onoclea struthiopteris f. foliacea (Farw.) B.Boivin form synonym

Matteuccia struthiopteris subsp. sinuata (Thunb.) Á.Löve & D.Löve subspecies synonym

Matteuccia struthiopteris var. acutiloba Ching variety synonym

Matteuccia pubescens (Terry) Clute species synonym

Matteuccia pensylvanica f. pubescens (Terry) F.Seym. form synonym

Matteuccia pensylvanica f. obtusilobata (Clute) F.Seym. form synonym

Matteuccia nodulosa (Schkuhr) Fernald species synonym

Pterinodes struthiopteris (L.) Kuntze species synonym

Pteretis struthiopteris var. pennsylvanica (Willd.) Farw. variety synonym

Pteretis pensylvanica f. pubescens (Terry) Fernald form synonym

Pteretis pensylvanica f. obtusilobata (Clute) Fernald form synonym

Pteretis pensylvanica f. foliacea (Farw.) Fernald form synonym

Pteretis nodulosa f. pubescens (Terry) Fernald form synonym

Pteretis nodulosa f. obtusilobata Fernald form synonym

Pteretis nodulosa f. foliacea (Farw.) M.Broun form synonym

Struthiopteris germanica f. pubescens Terry form synonym

Pteris nodulosa f. obtusilobata (Clute) Fernald form synonym

Pteris sinuata Thunb. species heterotypic synonym

Pteris pensylvanica f. obtusilobata (Clute) Fernald form synonym

Matteuccia struthiopteris f. pubescens (Terry) Clute form synonym

Matteuccia struthiopteris subsp. pensylvanica (Willd.) Á.Löve & D.Löve subspecies synonym

Pteretis struthiopteris (L.) Nieuwl. species synonym

Struthiopteris nodulosa var. pubescens Clute variety synonym

Struthiopteris filicastrum All. species synonym

Osmunda struthiopteris L. species synonym

Matteuccia struthiopteris (L.) Tod. species accepted

Matteuccia pensylvanica (Willd.) Raymond species accepted

Matteuccia struthiopteris var. pensylvanica (Willd.) C.V.Morton variety synonym

Onoclea struthiopteris var. pensylvanica (Willd.) B.Boivin variety synonym

Pteretis pensylvanica (Willd.) Fernald species synonym

Onoclea struthiopteris Linnaeus species synonym

Matteuccia struthiopteris var. pubescens (Terry) Clute variety synonym

Struthiopteris struthiopteris (L.) Farw. species synonym

Struthiopteris pensylvanica Willd. species synonym