Gymnocalycium paraguayense (K.Schum.) Schütz in Succulenta (Netherlands) 50(6): 105. 1971
Gymnocalycium paraguayense in Succulenta (Netherlands) 50(6): 105. 1971
is new combination for Echinocactus paraguayensis in Bull. Herb. Boissier, sér. 2, 3: 252. 1903