⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50185414, with some changes.
This name is a synonym of Echinopsis thionantha (Speg.) D.R.Hunt.
The record derives from Tropicos which reports it as a synonym (record 50185414) with original publication details: Cactaceae 3: 57-58, f. 74 57 1922.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:142830-2.