Euphorbia bifurcata Engelm.
Euphorbia bifurcata in Rep. U.S. Mex. Bound., Bot. 2(1): 190. 1858 sec. Martínez-Gordillo & al. 2002
- =Euphorbia uniglandulosa in Proc. Amer. Acad. Arts 22: 476. 1887 syn. sec. Martínez-Gordillo & al. 2006
- =Zygophyllidium delicatulum in Contr. U.S. Natl. Herb. 16(4): 145. 1913 syn. sec. Martínez-Gordillo & al. 2006