Gymnocactus mandragora (Frič ex A.Berger) Backeb., Cactaceae 5: 2862. 1961 Gymnocactus mandragora (Frič ex A.Berger) Backeb., Cactaceae 5: 2862. 1961Taxon for this nameGymnocactus mandragora (Frič ex A.Berger) Backeb.