Euphorbia trialata (Huft) V.W. Steinm. Euphorbia trialata (Huft) V.W. Steinm., Acta Bot. Mex. 61. 2002 sec. Martínez-Gordillo & al. 2006≡Chamaesyce trialata Huft, Contr. Univ. Michigan Herb. 20. 1995 syn. sec. Martínez-Gordillo & al. 2006