Graptopetalum Rose Graptopetalum Rose in Contr. U.S. Natl. Herb. 13: 296. 1911 sec. Thiede & Eggli 2007=Byrnesia Rose, Addisonia 37. 1922 syn. sec. Stevens 2001=Tacitus Moran in Cact. Suc. Mex. 19: 75. 1974 syn. sec. Thiede & Eggli 2007