Jatropha stephani J. Jiménez Ram. & Mart. Gord. Jatropha stephani J. Jiménez Ram. & Mart. Gord., An. Inst. Biol. Univ. Nac. Autón. Méx., Ser. Bot. 61(1). 1991 sec. Ulloa Ulloa & al. 2018=Jatropha martinezii E.J. Lott & Dehgan in Syst. Bot. 17(3): 363. 1992 syn. sec. Martínez-Gordillo & al. 2006