FLORA OF VIETNAM
Asclepiadaceae
Cynanchum corymbosum Wight

Lai Chau Prov., Phong Tho Distr., Sin Suoi Ho Municipality, Sa Ma Pho village, around point 22°32′53″N 103°33′40″E.

Secondary open evergreen broad-leaved forest and secondary woodlands on very steep mountain slopes composed predominantly with weathered granite at elev. about 1600-1800 m a.s.l.

Semi-woody vine 5-8 m long in wet slope on open shrubs. Fruits green. Rare.

HAL 10496 11 Dec. 2006 Photo.
Coll.: Nguyen Tien Hiep, L.Averyanov, Phan Ke Loc, Pham Van The, N.T.Vinh.