Cephalocereus monoclonos (DC.) Britton & Rose in Contr. U.S. Natl. Herb. 12: 418. 1909
Cephalocereus monoclonos in Contr. U.S. Natl. Herb. 12: 418. 1909
is new combination for Cereus monoclonos, Prodr.: 464. 1828
Cephalocereus monoclonos in Contr. U.S. Natl. Herb. 12: 418. 1909
Taxon for this name