Echinocereus subinermis var. luteus (Britton & Rose) Backeb., Cactaceae 4: 1994. 1960 Echinocereus subinermis var. luteus (Britton & Rose) Backeb., Cactaceae 4: 1994. 1960is new combination for Echinocereus luteus Britton & Rose in Contr. U.S. Natl. Herb. 16: 239. 1913Taxon for this nameEchinocereus subinermis var. luteus (Britton & Rose) Backeb.