This name is a synonym of Dioscorea triandria Sessé & Moc..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 240496) with original publication details: Proc. Amer. Acad. Arts 29: 324 1894.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:80934-2.
This name was in version 1 of The Plant List, record kew-240496.