This name is a synonym of Dioscorea ovata Vell..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 239740) with original publication details: Fl. Bras. 3(1): 29 1842.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:317620-1.
This name was in version 1 of The Plant List, record kew-239740, and has not been changed.