Euphorbia L., Sp. Pl.: 450-463. 1753 sec. Radcliffe-Smith 2001
- =Tithymalus Mill., Gard. Dict. Abr. (Ed. 4): 3. 1754 syn. sec. Radcliffe-Smith 2001
- =Tithymaloides Ortega, Tabulae Botanicae: 28. 1783 syn. sec. Radcliffe-Smith 2001
- =Pedilanthus Neck., Elem. Bot.: 354. 1790 syn. sec. Radcliffe-Smith 2001
- =Ventenatia Tratt., Gen. Pl.: 86. 1802 syn. sec. Radcliffe-Smith 2001
- =Anisophyllum Haw., Syn. Pl. Succ.: 159. 1812 syn. sec. Radcliffe-Smith 2001
- =Crepidaria Haw., Syn. Pl. Succ.: 136. 1812 syn. sec. Radcliffe-Smith 2001
- =Esula (Pers.) Haw., Syn. Pl. Succ. 1812 syn. sec. Radcliffe-Smith 2001
- =Galarhoeus Haw., Syn. Pl. Succ. 1812 syn. sec. Radcliffe-Smith 2001
- =Chamaesyce A. Gray, Nat. Arr. Brit. Pl. 2: 260. 1821 syn. sec. Radcliffe-Smith 2001
- =Keraselma Neck. ex A. Juss., Dict. Sci. Nat., Edition 2: 24. 1822 syn. sec. Martínez-Gordillo & al. 2006
- =Pleuradena Raf., Atlantic J. 1(6): 182. 1833 syn. sec. Radcliffe-Smith 2001
- =Leptopus Decne., Voyage dans l'Inde: 4. 1836 syn. sec. Radcliffe-Smith 2001
- =Poinsettia Graham in Edinburgh New Philos. J. 20: 412. 1836 syn. sec. Radcliffe-Smith 2001
- =Aklema Raf., Flora Telluriana. 4: 114. 1838 syn. sec. Radcliffe-Smith 2001
- =Cyathophora Raf., Flora Telluriana. 4: 117. 1838 syn. sec. Radcliffe-Smith 2001
- =Lepadena Raf., Flora Telluriana: 4. 1838 syn. sec. Radcliffe-Smith 2001
- =Tirucalia Raf., Sylva Tellur.: 112. 1838 syn. sec. Radcliffe-Smith 2001
- =Xamesike Raf., Flora Telluriana: 4. 1838 syn. sec. Radcliffe-Smith 2001
- =Alectoroctonum Schltdl. in Linnaea 19: 252. 1846 syn. sec. Radcliffe-Smith 2001
- =Adenopetalum Klotzsch & Garcke in Abh. Königl. Akad. Wiss. 1859: 250. 1860 syn. sec. Radcliffe-Smith 2001
- =Diadenaria Klotzsch & Garcke in Monatsber. Konigl. Preuss. Akad. Wiss. Berlin 1859: 254. 1860 ["1859"] syn. sec. Radcliffe-Smith 2001
- =Eumecanthus Klotzsch & Garcke in Abh. Königl. Akad. Wiss. 1859: 248. 1860 syn. sec. Radcliffe-Smith 2001
- =Hexadenia Klotzsch & Garcke in Abh. Königl. Akad. Wiss. 1859: 253. 1860 syn. sec. Radcliffe-Smith 2001
- =Tithymalopsis Klotzsch & Garcke in Abh. Königl. Akad. Wiss. 1859: 249. 1860 syn. sec. Radcliffe-Smith 2001
- =Trichosterigma Klotzsch & Garcke in Abh. Konigl. Akad. Wiss. Berlin 1859: 248. 1860 syn. sec. Radcliffe-Smith 2001
- =Pedilanthus sect. Eupedilanthus Boiss., Prodr. (DC.). 15(2): 4. 1862 syn. sec. Martínez-Gordillo & al. 2006
- =Pedilanthus sect. Calceolastrum Boiss., Prodr. (DC.). 15(2): 1261. 1866 syn. sec. Martínez-Gordillo & al. 2006
- =Pedilanthus sect. Anomalus Millsp., Publ. Field Mus. Nat. Hist. Bot. Ser. 1. 1896 syn. sec. Martínez-Gordillo & al. 2006
- =Tithymaloides sect. Pedilanthus M. Gómez, Flora Habanera. Fanerogamas: 174. 1897 syn. sec. Martínez-Gordillo & al. 2006
- =Tithymaloides sect. Diadenaria (Klotzsch & Garcke) Kuntze, Lexicon Generum Phanerogamarum in de ab Anno MDCCXXXVII cum Nomenclatura Legitima Internaionali Simul Scientifica. 1: 562. 1903 syn. sec. Martínez-Gordillo & al. 2006
- =Tithymaloides sect. Eutithymaloides Kuntze, Lexicon Generum Phanerogamarum in de ab Anno MDCCXXXVII cum Nomenclatura Legitima Internaionali Simul Scientifica. 1: 562. 1903 syn. sec. Martínez-Gordillo & al. 2006
- =Zygophyllidium (Boiss.) Small, Fl. S. E. U. S.: 1334. 1903 syn. sec. Radcliffe-Smith 2001
- =Euphorbiodendron Millsp., Publ. Field Mus. Nat. Hist. Bot. Ser. 2(7). 1909 syn. sec. Radcliffe-Smith 2001
- =Euphorbia subg. Tithymalus (Mill.) House in Bulletin of the New York State Museum of Natural History. 254: 472. 1924 syn. sec. Martínez-Gordillo & al. 2006