Efossus pentacanthus (Lem.) Orcutt in Cactography 5. 1926 Efossus pentacanthus (Lem.) Orcutt in Cactography 5. 1926is new combination for Echinocactus pentacanthus Lem., Cact. Aliq. Nov.: 27. 1838Taxon for this nameEfossus pentacanthus (Lem.) Orcutt
