You selected Carex tetanica var. canbyi Porter. This is a synonym for:

Accepted scientific name:
Carex tetanica Schkuhr (accepted name) 1 literature reference for Carex tetanica Schkuhr
Synonyms:
Carex alveata Boott (synonym) 1 literature reference for Carex alveata Boott
Carex meadii Porter, nom. illeg. (synonym) 1 literature reference for Carex meadii Porter, nom. illeg.
Carex multinervis Boeckeler (synonym) 1 literature reference for Carex multinervis Boeckeler
Carex tetanica forma canbyi (Porter) Kük. (synonym) 1 literature reference for Carex tetanica forma canbyi (Porter) Kük.
Carex tetanica var. canbyi Porter (synonym) 1 literature reference for Carex tetanica var. canbyi Porter
Carex tetanica var. carteri Porter (synonym) 1 literature reference for Carex tetanica var. carteri Porter
Olotrema tetanica (Schkuhr) Raf. (synonym) 1 literature reference for Olotrema tetanica (Schkuhr) Raf.
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Liliopsida
Order Poales
Family Cyperaceae
Genus Carex
Distribution: S. Canada to 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=231532&repSynonym_id=-9998&name_id=231532&status=true
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:2601c88a-60a7-102d-be47-00304854f810:ac2010