Efossus anfractuosus (Mart. ex Pfeiff.) Orcutt in Cactography 5. 1926 Efossus anfractuosus (Mart. ex Pfeiff.) Orcutt in Cactography 5. 1926is new combination for Echinocactus anfractuosus Mart. ex Pfeiff., Enum. Diagn. Cact.: 63. 1837Taxon for this nameEfossus anfractuosus (Mart. ex Pfeiff.) Orcutt