Pediocactus subterraneus (Backeb.) Halda in Acta Mus. Richnov., Sect. Nat., 5: 17. 1998 Pediocactus subterraneus (Backeb.) Halda in Acta Mus. Richnov., Sect. Nat., 5: 17. 1998is new combination for Echinocactus subterraneus Backeb. in Kakteen-Freund 1: 110. 1932Taxon for this namePediocactus subterraneus (Backeb.) Halda