This name is a synonym of Dioscorea semperflorens Uline.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 240293) with original publication details: Nat. Pflanzenfam. Nachtr. 1: 87 1897.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:318100-1.
This name was in version 1 of The Plant List, record kew-240293, and has not been changed.