Gymnocalycium gibbosum subsp. radekii Halda & Milt in Acta Mus. Richnov., Sect. Nat., 9: 63. 2002 Gymnocalycium gibbosum subsp. radekii Halda & Milt in Acta Mus. Richnov., Sect. Nat., 9: 63. 2002Taxon for this nameGymnocalycium gibbosum subsp. radekii Halda & Milt