⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2782379, and has not been changed.

Echinocactus tricornis Monv. ex A.Dietr. is a synonym of Discocactus placentiformis (Lehm.) K.Schum.

This name is a synonym of Discocactus placentiformis (Lehm.) K.Schum..

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Allg. Gartenzeitung 14: 203 1846.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:132246-1.