This name is a synonym of Smilax riparia A.DC..
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym (record 310443) with original publication details: Rep. Inst. Sci. Res. Manchoukou 4: 103 1940.
This name was in version 1 of The Plant List, record kew-310443.