Euphorbia theriaca L.C. Wheeler var. theriaca Euphorbia theriaca L.C. Wheeler var. theriaca, Rhodora 43(508). 1941 sec. Martínez-Gordillo & al. 2002=Chamaesyce theriaca (L.C. Wheeler) Shinners, Field & Lab. 17. 1949 syn. sec. Martínez-Gordillo & al. 2006