⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-5103145, and has not been changed.
This name is a synonym of Sulcorebutia arenacea (Cárdenas) F. Ritter.
The record derives from Tropicos which reports it as a synonym (record 5103145) with original publication details: Cact. Succ. J. (Los Angeles) 23: 94, f. 45, 46 94 1951.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:218044-2.