Stenocactus pentacanthus (Lem.) A.Berger ex A.W.Hill, Index Kew. 8: 228. 1933 Stenocactus pentacanthus (Lem.) A.Berger ex A.W.Hill, Index Kew. 8: 228. 1933is new combination for Echinocactus pentacanthus Lem., Cact. Aliq. Nov.: 27. 1838Taxon for this nameStenocactus pentacanthus (Lem.) A.Berger ex A.W.Hill