Euphorbia georgei Oudejans, Phytologia 67(1). 1989 sec. Martínez-Gordillo & al. 2002
- =Euphorbia acuta Engelm., Rep. U.S. Mex. Bound., Bot. 2(1). 1858 syn. sec. Martínez-Gordillo & al. 2006
- =Euphorbia acuta var. stenophylla Boiss., Prodr. (DC.). 15(2). 1862 syn. sec. Martínez-Gordillo & al. 2006
- =Chamaesyce acuta (Engelm.) Millsp. in Publ. Field Mus. Nat. Hist. Bot. Ser. 2(11): 407-408. 1916 syn. sec. Martínez-Gordillo & al. 2006