Echinocactus pentacanthus Lem., Cact. Aliq. Nov.: 27. 1838
Echinocactus pentacanthus, Cact. Aliq. Nov.: 27. 1838
is basionym for Stenocactus pentacanthus, Kakteen: 247. 1929
is basionym for Echinofossulocactus crispatus f. pentacanthus in Calyx 2: 87. 1992
is basionym for Efossus pentacanthus in Cactography 5. 1926
is basionym for Echinofossulocactus pentacanthus, Cactaceae 3: 115. 1922
is basionym for Brittonrosea pentacantha in Anales Soc. Ci. Argent. 96: 69. 1923
is basionym for Echinocactus anfractuosus var. pentacanthus, Cact. Hort. Dyck., ed. 1849: 31. 1850
is basionym for Stenocactus pentacanthus, Index Kew. 8: 228. 1933