Echeveria macdougallii E. Walther Echeveria macdougallii E. Walther in Cact. Succ. J. Amer. 30: 87. 1958 sec. Pérez-Calix 2011=Echeveria sedoides E. Walther in Cact. Succ. J. Amer. 30: 153. 1958 syn. sec. Etter & Kristen 1997–2017