You selected Carex melanocarpa var. rigidior T.Koyama. This is a synonym for:

Accepted scientific name:
Carex melanocarpa Cham. ex Trautv. (accepted name) 1 literature reference for Carex melanocarpa Cham. ex Trautv.
Synonyms:
Carex ericetorum subsp. melanocarpa (Cham. ex Trautv.) Kük. (synonym) 1 literature reference for Carex ericetorum subsp. melanocarpa (Cham. ex Trautv.) Kük.
Carex inornata Turcz. (synonym) 1 literature reference for Carex inornata Turcz.
Carex melanocarpa var. rigidior T.Koyama (synonym) 1 literature reference for Carex melanocarpa var. rigidior T.Koyama
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Liliopsida
Order Poales
Family Cyperaceae
Genus Carex
Distribution: N. European Russia to N. Japan
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=228574&repSynonym_id=-9998&name_id=228574&status=true
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:25fe62bc-60a7-102d-be47-00304854f810:ac2010