Echinocactus paraguayensis K.Schum. in Bull. Herb. Boissier, sér. 2, 3: 252. 1903
Echinocactus paraguayensis in Bull. Herb. Boissier, sér. 2, 3: 252. 1903
is basionym for Gymnocalycium paraguayense in Succulenta (Netherlands) 50(6): 105. 1971
is basionym for Echinocactus denudatus var. paraguayensis, Handb. Kakteenkult.: 190. 1907