Echinocactus emoryi Engelm. in Proc. Amer. Acad. Arts 3: 275. 1856 Echinocactus emoryi Engelm. in Proc. Amer. Acad. Arts 3: 275. 1856is basionym for Ferocactus emoryi (Engelm.) Orcutt in Cactography 1: 5. 1926Taxon for this nameEchinocactus emoryi Engelm.