Gymnocalycium brachypetalum Speg. in Anales Soc. Ci. Argent. 99: 135. 1925
Gymnocalycium brachypetalum in Anales Soc. Ci. Argent. 99: 135. 1925
is basionym for Gymnocalycium gibbosum var. brachypetalum in Gymnocalycium 9: 201. 1996
is basionym for Echinocactus brachypetalus in Backeberg, Neue Kakteen: 89. 1931