This name is a synonym of Dioscorea wrightii Uline ex R.Knuth.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 240249) with original publication details: Fl. Cuba 1: 321 1946.
This name was in version 1 of The Plant List, record kew-240249, and has not been changed.