⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2835538, with some changes.

Gymnocalycium armatum F.Ritter is a synonym of Gymnocalycium spegazzinii subsp. cardenasianum (F.Ritter) R.Kiesling & Metzing

This name is a synonym of Gymnocalycium spegazzinii subsp. cardenasianum (F.Ritter) R.Kiesling & Metzing.

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Kakteen Südamer. 2: 662 1980.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:115354-2.