This name is a synonym of Geranium berteroanum Colla.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Revista Fac. Agron. Univ. Nac. La Plata 3: 500 1897.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:109134-2.
This name was in version 1 of The Plant List, record kew-2823182, and has not been changed.