This name is a synonym of Centrosema virginianum (L.) Benth..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 13003039) with original publication details: Revis. Gen. Pl. 3(3): 53 1898.
This name was in version 1 of The Plant List, record tro-13003039.