⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2781872, with some changes.

Echinocactus helophorus Lem. is a synonym of Echinocactus platyacanthus Link & Otto

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Cact. Gen. Sp. Nov. 12 1839.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:131862-1.