You selected Carex jamesii var. nebraskensis (Dewey) L.H.Bailey. This is a synonym for:

Accepted scientific name:
Carex nebraskensis Dewey (accepted name) 1 literature reference for Carex nebraskensis Dewey
Synonyms:
Carex jamesii Torr., nom. illeg. (synonym) 1 literature reference for Carex jamesii Torr., nom. illeg.
Carex jamesii var. nebraskensis (Dewey) L.H.Bailey (synonym) 1 literature reference for Carex jamesii var. nebraskensis (Dewey) L.H.Bailey
Carex jamesii var. ultriformis (L.H.Bailey) Kük. (synonym) 1 literature reference for Carex jamesii var. ultriformis (L.H.Bailey) Kük.
Carex nebraskensis var. eruciformis Suksd. (synonym) 1 literature reference for Carex nebraskensis var. eruciformis Suksd.
Carex nebraskensis var. praevia L.H.Bailey (synonym) 1 literature reference for Carex nebraskensis var. praevia L.H.Bailey
Carex nebraskensis var. ultriformis L.H.Bailey (synonym) 1 literature reference for Carex nebraskensis var. ultriformis L.H.Bailey
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Liliopsida
Order Poales
Family Cyperaceae
Genus Carex
Distribution: S. Canada to W. & NC. 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=228936&repSynonym_id=-9998&name_id=228936&status=true
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:25fed120-60a7-102d-be47-00304854f810:ac2010