⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2783704, and has not been changed.
This name is a synonym of Acanthocalycium spiniflorum (K.Schum.) Backeb..
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Notizbl. Bot. Gart. Berlin-Dahlem 11: 262 1931.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:88541-2.