You selected Thelypteris thelypterioides (Michx.) Holub. This is a synonym for:

Accepted scientific name:
Thelypteris noveboracensis (L.) Nieuwl. (accepted name) 3 literature references for Thelypteris noveboracensis (L.) Nieuwl.
Synonyms:
Dryopteris noveboracensis (L.) Gray (synonym) 2 literature references for Dryopteris noveboracensis (L.) Gray
Polypodium noveboracense L. (synonym) 2 literature references for Polypodium noveboracense L.
Thelypteris thelypterioides (Michx.) Holub (synonym) 2 literature references for Thelypteris thelypterioides (Michx.) Holub
Thelypteris thelypteroides (Michx.) J. Holub. (synonym) 1 literature reference for Thelypteris thelypteroides (Michx.) J. Holub.
Infraspecific taxon: Thelypteris noveboracensis (L.) Nieuwl.
Common names: -
Classification:
Plantae
Phylum Pteridophyta
Class Filicopsida
Order Polypodiales
Family Thelypteridaceae
Genus Thelypteris
Distribution: North America
Additional data: -
Source database: ITIS, Sep 2009
Latest taxonomic scrutiny: Kartesz J., 12-Mar-2003
Online resource: http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=17261
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:2457fe28-60a7-102d-be47-00304854f810:ac2010