Euphorbia hormorrhiza (Dressler) Radcl.-Sm. Euphorbia hormorrhiza (Dressler) Radcl.-Sm. in Kew Bull. 32: 482. 1978 sec. Martínez-Gordillo & al. 2002=Poinsettia coccinea Dressler in Ann. Missouri Bot. Gard. 48(4): 336, fig. 2. 1961 syn. sec. Martínez-Gordillo & al. 2006