This name is a synonym of Dioscorea campestris Griseb..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 239922) with original publication details: Anales Mus. Nac. Hist. Nat. Buenos Aires 27: 451 1916.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:80731-2.
This name was in version 1 of The Plant List, record kew-239922, and has not been changed.