Efossus grandicornis (Lem.) Orcutt in Cactography 5. 1926 Efossus grandicornis (Lem.) Orcutt in Cactography 5. 1926is new combination for Echinocactus grandicornis Lem., Cact. Gen. Sp. Nov.: 30. 1839Taxon for this nameEfossus grandicornis (Lem.) Orcutt