This name is a synonym of Desmodium nudiflorum f. foliolatum (Farw.) Fassett.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 13062866) with original publication details: Rhodora 38(449): 189 1936.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:78500-2.
This name was in version 1 of The Plant List, record tro-13062866, and has not been changed.