This name is a synonym of Senna aphylla (Cav.) H.S.Irwin & Barneby.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 13040694) with original publication details: Darwiniana 21: 386 1978.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:48272-2.
This name was in version 1 of The Plant List, record tro-13040694, and has not been changed.