Echinocactus multiflorus Hook. in Bot. Mag. 71: t. 4181. 1845 Echinocactus multiflorus Hook. in Bot. Mag. 71: t. 4181. 1845is basionym for Gymnocalycium multiflorum (Hook.) Britton & Rose in Addisonia 3: 5. 1918Taxon for this nameEchinocactus multiflorus Hook.