⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2781563, and has not been changed.

Echinocactus ambiguus Hildm. ex K.Schum. is a synonym of Copiapoa cinerascens (Salm-Dyck) Britton & Rose

This name is a synonym of Copiapoa cinerascens (Salm-Dyck) Britton & Rose.

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Gesamtbeschr. Kakt. 311 1898.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:87179-2.