⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2781907, with some changes.
This name is a synonym of Echinocactus horizonthalonius .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Cactaceae (Bratislava) 8: 8 1998.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:1010864-1
.