This name is a synonym of Dioscorea coreana (Prain & Burkill) R.Knuth.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 241124) with original publication details: J. Proc. Asiat. Soc. Bengal 10: 15 1914.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:60453396-2.
This name was in version 1 of The Plant List, record kew-241124, and has not been changed.