Asclepias viridiflora Raf. Asclepias viridiflora Raf. in Med. Repos., hexade 2, 5: 360. 1808 sec. Juárez-Jaimes & al. 2007=Acerates viridiflora (Raf.) Eaton, Man. Bot., ed. 5: 90. 1829 syn. sec. The Plant List 2013