≡ Ferocactus pilosus (Galeotti ex Salm-Dyck) Werderm. (1933) (*) ≡ Echinocactus pilosus Galeotti ex Salm-Dyck (1850)
= Ferocactus piliferus f. flavispinus (hort. ex Schelle) G. Unger (1986) = Echinocactus pilosus f. flavispinus hort. ex Schelle (1926) = Echinocactus stainesii Hook. (1845) = Ferocactus piliferus (Lem. ex C.Ehrenb.) G. Unger (1986) = Echinocactus piliferus Lem. ex C. Ehrenb. (1848) = Ferocactus piliferus v. stainesii (Salm-Dyck) G. Unger (1986) = Ferocactus stainesii (Salm-Dyck) Britton & Rose (1922) = Echinocactus pilosus v. stainesii Salm-Dyck (1850) = Ferocactus stainesii v. pringlei (J.M. Coult.) Backeb. (1961) = Ferocactus pringlei (J.M. Coult.) Britton & Rose (1922) = Echinocactus pringlei (J.M. Coult.) Rose (1906) = Echinocactus pilosus v. pringlei J.M. Coult. (1896)
