Gymnocalycium uruguayense subsp. rionegroense Prestlé in Gymnocalycium 33: 1352-1353. 2020 Gymnocalycium uruguayense subsp. rionegroense Prestlé in Gymnocalycium 33: 1352-1353. 2020Taxon for this nameGymnocalycium uruguayense subsp. rionegroense Prestlé
