You selected Carex tribuloides var. cristata (Tuck.) L.H.Bailey. This is a synonym for:

Accepted scientific name:
Carex cristatella Britton & A.Br. (accepted name) 1 literature reference for Carex cristatella Britton & A.Br.
Synonyms:
Carex cristata Schwein., nom. illeg. (synonym) 1 literature reference for Carex cristata Schwein., nom. illeg.
Carex cristata var. catelliformis Farw. (synonym) 1 literature reference for Carex cristata var. catelliformis Farw.
Carex cristata forma ellipsoidalis Farw. (synonym) 1 literature reference for Carex cristata forma ellipsoidalis Farw.
Carex cristatella forma catelliformis (Farw.) Fernald (synonym) 1 literature reference for Carex cristatella forma catelliformis (Farw.) Fernald
Carex lagopodioides var. cristata (Tuck.) J.Carey (synonym) 1 literature reference for Carex lagopodioides var. cristata (Tuck.) J.Carey
Carex straminea var. cristata Tuck. (synonym) 1 literature reference for Carex straminea var. cristata Tuck.
Carex tribuloides var. cristata (Tuck.) L.H.Bailey (synonym) 1 literature reference for Carex tribuloides var. cristata (Tuck.) L.H.Bailey
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Liliopsida
Order Poales
Family Cyperaceae
Genus Carex
Distribution: Canada, NC. & 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=225753&repSynonym_id=-9998&name_id=225753&status=true
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:25fb4c44-60a7-102d-be47-00304854f810:ac2010