Echinocactus aureus (Meyen) Pfeiff., Enum. Diagn. Cact.: 68. 1837 Echinocactus aureus (Meyen) Pfeiff., Enum. Diagn. Cact.: 68. 1837is new combination for Cactus aureus Meyen, Reise Eur. As. Afr. 1: 447. 1834Taxon for this nameEchinocactus aureus (Meyen) Pfeiff.