This name is a synonym of Plectranthus monostachyus (P.Beauv.) B.J.Pollard.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 137003) with original publication details: Fl. Oware 2: 60 1818.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:453039-1.
This name was in version 1 of The Plant List, record kew-137003.