⚠ Version 1 of The Plant List has been superseded.

This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Dioscorea japonica in version 1.1 of The Plant List.

Dioscorea japonica var. formosensis Masam. & Suzuki is a synonym of Dioscorea japonica Thunb.

This name is a synonym of Dioscorea japonica Thunb..

The record derives from Tropicos which reports it as a synonym (record 50055804) with original publication details: Annual Rep. Taihoku Bot. Gard. 3: 74 74 1933.