Euphorbia adiantoides Lam. Euphorbia adiantoides Lam., Encycl. 2: 426. 1788 sec. Steinmann & Carrillo-Reyes 2018=Euphorbia sonorae Rose in Contr. U.S. Natl. Herb. 1(9): fig. 10. 1895 syn. sec. Steinmann & Carrillo-Reyes 2018