⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2781653, with some changes.
This name is a synonym of Echinopsis thionantha (Speg.) D.R.Hunt.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Anales Mus. Nac. Buenos Aires 11: 499 1905.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:87254-2.