This name is a synonym of Crotalaria recta A.Rich..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 13023079) with original publication details: Bull. Misc. Inform. Kew 1921(10): 363 1921.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:487990-1.
This name was in version 1 of The Plant List, record tro-13023079, and has not been changed.