Croton sonorae Torr., Rep. U.S. Mex. Bound., Bot. 2(1). 1858 sec. Martínez-Gordillo & al. 2002
- =Croton pringlei S. Watson, Proc. Amer. Acad. Arts 20. 1885 syn. sec. Martínez-Gordillo & al. 2006
- =Croton gonzalezii Greenm., Proc. Amer. Acad. Arts 39(5). 1903 syn. sec. Martínez-Gordillo & al. 2006
- =Croton attenuatus M.E. Jones, Contr. W. Bot. 18. 1933 syn. sec. Martínez-Gordillo & al. 2006