This name is a synonym of Grewia crenata (G.Forst.) Schinz & Guillaumin.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: U.S. Expl. Exped., Phan. 1: 199 1854.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:834489-1.
This name was in version 1 of The Plant List, record kew-2833342, and has not been changed.