Echinocactus spina-christi Zucc. ex Pfeiff., Enum. Diagn. Cact.: 59. 1837 Echinocactus spina-christi Zucc. ex Pfeiff., Enum. Diagn. Cact.: 59. 1837Taxon for this nameEchinocactus spina-christi Zucc. ex Pfeiff.