This name is a synonym of Echinopsis atacamensis subsp. pasacana (F.A.C.Weber) G.Navarro.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Nat. Pflanzenfam. 3(6a): 182 1894.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:129880-1.
This name was in version 1 of The Plant List, record kew-2709541, and has not been changed.