This name is a synonym of Rhodothamnus leachianus (L.F. Hend.) H.F. Copel..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50068357) with original publication details: Rhodora 33(394): 205 1931.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:219485-2.
This name was in version 1 of The Plant List, record tro-50068357.