This name is a synonym of Sophora alopecuroides L..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 13044686) with original publication details: J. Arnold Arbor. 16: 76 1935.
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 prodanii in version 1 of The Plant List.