≡ Cactus radians (DC.) Kuntze (1891) ≡ Mammillaria radians DC. (1828)
= Coryphantha bernalensis L. Bremer (1984) = Coryphantha cornifera (DC.) Lem. (1868) = Mammillaria cornifera DC. (1828) = Coryphantha cornuta (Hildm. ex K. Schum.) A. Berger (1929) = Mammillaria cornuta Hildm. ex K. Schum. (1898) = Coryphantha daimonoceras (Lem.) Lem. (1868) = Mammillaria daimonoceras Lem. (1838) = Coryphantha maliterrarum L. Bremer (1984) = Coryphantha radians v. impexicoma (Lem.) Y. Ito (1952) = Mammillaria impexicoma Lem. (1838) = Coryphantha radians v. pectinoides (J.M.Coult). Bravo (1982) = Cactus radians v. pectinoides J.M. Coult. (1894)
