Euphorbia villifera Scheele, Linnaea 22. 1849 sec. Martínez-Gordillo & al. 2002
- =Euphorbia ammatotricha Boiss., Cent. Euphorb. 1860 syn. sec. Martínez-Gordillo & al. 2006
- =Euphorbia villifera var. nuda Engelm. ex Boiss., Prodr. (DC.). 15(2). 1862 syn. sec. Martínez-Gordillo & al. 2006
- =Chamaesyce stanfieldii Small, Fl. S.E. U.S. 1903 syn. sec. Martínez-Gordillo & al. 2006
- =Chamaesyce villifera (Scheele) Small, Fl. S.E. U.S. 1903 syn. sec. Martínez-Gordillo & al. 2006
- =Chamaesyce ammatotricha (Boiss.) Millsp., Publ. Field Mus. Nat. Hist. Bot. Ser. 2(11). 1916 syn. sec. Martínez-Gordillo & al. 2006
- =Euphorbia siguatepequensis Standl., Publ. Field Mus. Nat. Hist. Bot. Ser. 4(8). 1929 syn. sec. Martínez-Gordillo & al. 2006
- =Euphorbia stanfieldii (Small) Cory, Rhodora 38(455). 1936 syn. sec. Martínez-Gordillo & al. 2006
- =Euphorbia trichocardia L.B. Sm., Contr. Gray Herb. 110. 1936 syn. sec. Martínez-Gordillo & al. 2006
- =Euphorbia senilis Standl. & Steyerm., Publ. Field Mus. Nat. Hist. Bot. Ser. 23(3). 1944 syn. sec. Martínez-Gordillo & al. 2006