⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2781958, with some changes.

Echinocactus kunzei var. rigidior Salm-Dyck is a synonym of Eriosyce kunzei (C.F.Först.) Katt.

This name is a synonym of Eriosyce kunzei (C.F.Först.) Katt..

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Cact. Hort. Dyck. ed. 2: 33, 167 1850.