This name is a synonym of Priva grandiflora (Ortega) Moldenke.
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym (record 212324) with original publication details: Nov. Pl. Descr. Dec. 2 1797.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:317938-2.
This name was in version 1 of The Plant List, record kew-212324.