References
Liede, S., and A. Täuber. 2002. Circumscription of the genus Cynanchum (Apocynaceae – Asclepiadoideae). Systematic Botany 27: 789-800. Google Scholar
Liede, S., and A. Täuber. 2002. Circumscription of the genus Cynanchum (Apocynaceae – Asclepiadoideae). Systematic Botany 27: 789-800. Google Scholar