Obregonia denegrii Frič in Život v Přír. 29: 14. 1925

is basionym for Ariocarpus denegrii (Frič) W.T.Marshall in Cact. Succ. J. (Los Angeles) 18: 56. 1946

is basionym for Strombocactus denegrii (Frič) G.D.Rowley in Repert. Pl. Succ. 23: 9. 1974 ["1972"]

Taxon for this name