You selected Carex digitalis var. van-weckii Dewey. This is a synonym for:

Accepted scientific name:
Carex digitalis var. digitalis (accepted name)
Synonyms:
Carex digitalis forma podostachys (Steud.) Kük. (synonym) 1 literature reference for Carex digitalis forma podostachys (Steud.) Kük.
Carex digitalis var. van-weckii Dewey (synonym) 1 literature reference for Carex digitalis var. van-weckii Dewey
Carex oligocarpa Muhl. ex Boott, nom. illeg. (synonym) 1 literature reference for Carex oligocarpa Muhl. ex Boott, nom. illeg.
Carex oligocarpa var. van-vleckii Schwein. ex Dewey (synonym) 1 literature reference for Carex oligocarpa var. van-vleckii Schwein. ex Dewey
Carex podostachys Steud. (synonym) 1 literature reference for Carex podostachys Steud.
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Liliopsida
Order Poales
Family Cyperaceae
Genus Carex
Species Carex digitalis
Distribution: SE. Canada to C. & E. U.S.A.
Additional data: -
Source database: World Checklist of Selected Plant Families, 27 Nov 2009
Latest taxonomic scrutiny: Govaerts R., 21-Jun-2005
Online resource: http://apps.kew.org/wcsp/namedetail.do?accepted_id=225994&repSynonym_id=-9998&name_id=225994&status=true
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:25fbad4c-60a7-102d-be47-00304854f810:ac2010