⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2783656, with some changes.

Echinopsis stollenwerkiana Boed. is a synonym of Echinopsis pugionacantha Rose & Boed.

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Jahrb. Deutsch. Kakteen-Ges. 1: 59 1936.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:88510-2.