This name is a synonym of Indigofera crotalarioides (Klotzsch) Baker.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 13033395) with original publication details: Naturw. Reise Mossambique 1: 45 1861.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:520493-1.
This name was in version 1 of The Plant List, record tro-13033395, and has not been changed.