Euphorbia schlechtendalii Boiss. Euphorbia schlechtendalii Boiss., Cent. Euphorb. 1860 sec. Martínez-Gordillo & al. 2002=Euphorbia adenophylla Donn. Sm. in Bot. Gaz. 47(4): 261. 1909, nom. illeg. syn. sec. ???