This name is a synonym of Petalostigma pubescens Domin.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 150782) with original publication details: Fl. N. Territory 166 1917.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:142397-3.
This name was in version 1 of The Plant List, record kew-150782, and has not been changed.