Opuntia decumbens Salm-Dyck Opuntia decumbens Salm-Dyck, Hort. Dyck.: 361. 1834 sec. Hunt 2016=Opuntia maxonii J.G. Ortega in Bol. Pro-Cult. Reg. 1: sine pag. 1929 syn. sec. Guzmán & al. 2003=Opuntia heliae Matuda in Cact. Suc. Mex. 1: 23. 1955 syn. sec. Guzmán & al. 2003