Synonyms
Neolloydia subterranea (Backeb.) H.E.Moore
Turbinicarpus mandragora subsp. subterraneus (Backeb.) Lüthy
Gymnocactus subterraneus (Backeb.) Fritz Schwarz
Echinocactus subterraneus Backeb.
Pediocactus subterraneus (Backeb.) Halda
Thelocactus subterraneus Backeb.
Turbinicarpus subterraneus (Backeb.) A.D.Zimmerman