This name is a synonym of Echinopsis obrepanda (Salm-Dyck) K.Schum..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Revista Agric. (Cochabama) 6: 33 1951.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:88488-2.
This name was in version 1 of The Plant List, record kew-2783615.