Euphorbia scopulorum Brandegee var. scopulorum, Univ. Calif. Publ. Bot. 4(11). 1911 sec. Martínez-Gordillo & al. 2002
- =Chamaesyce scopulorum (Brandegee) Millsp., Publ. Field Mus. Nat. Hist. Bot. Ser. 11(10). 1914 syn. sec. Martínez-Gordillo & al. 2006