Echinocactus robustus Otto ex Pfeiff., Enum. Diagn. Cact.: 61. 1837
Echinocactus robustus, Enum. Diagn. Cact.: 61. 1837
is basionym for Echinofossulocactus robustus in Gard. Mag. (London) 17: 318. 1841
Echinocactus robustus, Enum. Diagn. Cact.: 61. 1837
Taxon for this name