Euphorbia macropodoides B.L. Rob. & Greenm. Euphorbia macropodoides B.L. Rob. & Greenm. in Amer. J. Sci. 50 (295): 164. 1895 sec. Martínez-Gordillo & al. 2002=Zygophyllidium macropodoides (B.L. Rob. & Greenm.) Arthur in Torreya 24: 52. 1924 syn. sec. Martínez-Gordillo & al. 2006