Euphorbia trichotoma Kunth, Nov. Gen. Sp. Pl. 2. 1817 sec. Martínez-Gordillo & al. 2002
- =Euphorbia dumosa A. Rich., Historia Fisica Politica y Natural de la Isla de Cuba. 2. 1850 syn. sec. Martínez-Gordillo & al. 2006
- =Tithymalus trichotomus (Kunth) Klotzsch & Garcke, Abh. Königl. Akad. Wiss. Berlin 1859. 1860 syn. sec. Martínez-Gordillo & al. 2006
- =Euphorbia sagraeana A. Rich. ex Boiss., Prodr. (DC.). 15(2). 1862 syn. sec. Martínez-Gordillo & al. 2006
- =Euphorbia imbricata Sessé & Moc., Fl. Mexic. ed. 2: 1894 syn. sec. Martínez-Gordillo & al. 2006
- =Galarhoeus trichotomus (Kunth) Small, Manual of the Southeastern Flora. Being Descriptions of the Seed Plants Growing Naturally in Florida, Alabama, Mississippi, Eastern Louisiana, Tennessee, North Carolina, South Carolina and Georgia. 1933 syn. sec. Martínez-Gordillo & al. 2006
- =Euphorbia sessei Oudejans, Phytologia 67(1). 1989 syn. sec. Martínez-Gordillo & al. 2006