Echinomastus erectocentrus (J.M. Coult.) Britton & Rose Echinomastus erectocentrus (J.M. Coult.) Britton & Rose, Cactaceae (Britton & Rose) 3: 148. 1922 sec. Guzmán & al. 2003≡Echinocactus erectocentrus J.M. Coult. in Contr. U.S. Natl. Herb. 3: 376. 1896 syn. sec. Guzmán & al. 2003