Synonyms
Carex crassicaulis Franch.
Carex yesinensis Franch.
Carex morrowii var. longesquamata Franch.
Carex morrowii var. yesinensis (Franch.) Kük.
Carex morrowii f. virginea Franch. & Sav.
Carex morrowii var. latissima Ohwi
Carex niigatensis Koidz.
Carex morrowii f. niigatensis Franch. & Sav.
Carex foliosissima var. latissima (Ohwi) Akiyama