Euphorbia tithymaloides subsp. parasitica (Klotzsch & Garcke) V.W. Steinm. in Acta Bot. Mex.(65): 50. 2003 sec. Martínez-Gordillo & al. 2006
- =Pedilanthus parasiticus Klotzsch & Garcke in Abh. Königl. Akad. Wiss. Berlin 1859: 159. 1860 syn. sec. Martínez-Gordillo & al. 2006
- =Pedilanthus ramosissimus Boiss., Prodr. (DC.). 15(2): 5. 1862 syn. sec. Martínez-Gordillo & al. 2006
- =Tithymaloides parasiticum (Klotzsch & Garcke) Kuntze, Revis. Gen. Pl. 2: 620. 1891 syn. sec. Martínez-Gordillo & al. 2006
- =Pedilanthus iztaeus Millsp., Publ. Field Mus. Nat. Hist. Bot. Ser. 1: 305, lámina 18. 1896 syn. sec. Martínez-Gordillo & al. 2006
- =Pedilanthus latifolium Millsp. & Britton in Ann. Missouri Bot. Gard. 2(1/2): 43. 1915 syn. sec. Martínez-Gordillo & al. 2006
- =Tithymalus itzaeus (Millsp.) Croizat in Amer. J. Bot. 24 (10): 704. 1937 syn. sec. Martínez-Gordillo & al. 2006
- =Tithymalus parasiticus (Klotzsch & Garcke) Croizat in Amer. J. Bot. 24 (10): 704. 1937 syn. sec. Martínez-Gordillo & al. 2006
- =Tithymalus petanophyllus Croizat in Amer. J. Bot. 24 (10): 704. 1937 syn. sec. Martínez-Gordillo & al. 2006
- =Pedilanthus tithymaloides subsp. parasiticus (Klotzsch & Garcke) Dressler in Contr. Gray Herb. 182: 148. 1957 syn. sec. Martínez-Gordillo & al. 2006