Synonyms
Dioscorea nipponica var. jamesii Prain & Burkill
Dioscorea nipponica var. rosthornii (Diels) Prain & Burkill
Dioscorea nipponica var. pubescens Nakai
Dioscorea acerifolia Uline ex Prain & Burkill
Dioscorea acerifolia var. rosthornii Diels
Dioscorea giraldii R.Knuth
Dioscorea nipponica f. jamesii (Prain & Burkill) Kitag.
Dioscorea nipponica subsp. rosthornii (Diels) C.T.Ting