Echinocactus hexaedrophorus Lem., Cact. Gen. Sp. Nov.: 27–28. 1839
Echinocactus hexaedrophorus, Cact. Gen. Sp. Nov.: 27–28. 1839
is basionym for Thelocactus hexaedrophorus in Bull. Torrey Bot. Club 49: 251. 1922
is basionym for Echinofossulocactus hexaedrophorus in Gard. Mag. (London) 17: 318. 1841