⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2739571, with some changes.

Coryphantha alversonii var. exaltissima Wiegand & Backeb. is a synonym of Escobaria vivipara (Nutt.) Buxb.

This name is a synonym of Escobaria vivipara (Nutt.) Buxb..

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Cactac.: Handb. Kakteenk. 5: 3001 1961.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:66502-2.