Synonyms
Carex motoskei Miq.
Carex tokioensis Boeckeler
Carex japonica var. gracilis Franch.
Carex albidibasis T.Koyama
Carex japoniciformis Nakai
Carex trichostyles Franch. & Sav.
Carex patens Franch.
Carex japonica var. minor Boott
Carex baviensis Franch.
Carex doniana var. minor (Boott) Boott
Carex japonica var. trichostyles Franch. & Vaniot
Carex japonica variegata André
Carex japonica variegata-nova Pynaert