Euphorbia chamaesula var. subdentata (Engelm.) Norton, Annual Rep. Missouri Bot. Gard. 11. 1900 sec. Martínez-Gordillo & al. 2006
- =Euphorbia esuliformis var. subdentata Engelm., Rep. U.S. Mex. Bound., Bot. 2(1). 1859 syn. sec. Martínez-Gordillo & al. 2006