This name is a synonym of Sophora albescens (Rehder) C.Y.Ma.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 13066528) with original publication details: Acta Phytotax. Sin. 19(1): 16 1981.
This name record (from Tropicos) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Sophora velutina in version 1 of The Plant List.