This name is a synonym of Amphicarpaea bracteata subsp. edgeworthii (Benth.) H.Ohashi.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 13064641) with original publication details: Acta Horti Petrop. 31: 155 1912.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:473870-1.
This name was in version 1 of The Plant List, record tro-13064641.