This name is a synonym of Sophora flavescens Aiton.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 13032985) with original publication details: Prodr. 2: 96 1825.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:518882-1.
This name was in version 1 of The Plant List, record tro-13032985.