Euphorbia ophthalmica Pers., Syn. Pl. 2(1): 13. 1806 sec. Martínez-Gordillo & al. 2002
- =Euphorbia procumbens DC., Catalogus Plantarum Horti Botanici Monspeliensis. 1813 syn. sec. Martínez-Gordillo & al. 2006
- =Euphorbia gemella Lag., Gen. Sp. Pl. 1816 syn. sec. Martínez-Gordillo & al. 2006
- =Euphorbia pilulifera var. procumbens Boiss., Prodr. (DC.). 15(2). 1862 syn. sec. Martínez-Gordillo & al. 2006
- =Euphorbia hirta var. procumbens (Boiss.) N.E. Br., Flora of Tropical Africa. 6(1). 1911 syn. sec. Martínez-Gordillo & al. 2006
- =Chamaesyce gemella (Lag.) Small, Flora of Miami. Being Descriptions of the Seed-Plants Growing Naturally on the Everglade Keys and in the Adjacent Everglades of Southern Peninsula Florida. 1913 syn. sec. Martínez-Gordillo & al. 2006
- =Euphorbia bicapitata Brandegee, Univ. Calif. Publ. Bot. 6(13). 1917 syn. sec. Martínez-Gordillo & al. 2006
- =Chamaesyce ophthalmica (Pers.) D.G. Burch, Ann. Missouri Bot. Gard. 53(1). 1966 syn. sec. Martínez-Gordillo & al. 2006