This name is a synonym of Secamone volubilis (Lam.) Marais.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 2602341) with original publication details: Prodr. 8: 503 1844.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:101385-1.
This name was in version 1 of The Plant List, record tro-2602341, and has not been changed.