FLORA OF VIETNAM
Orchidaceae
Vanilla annamica Gagnep.?

Vietnam, Quang Binh Prov., Quang Ninh Distr., Truong Son municipality, around Chan Trong village at 17°10′49″N 106°29′22″E.

Secondary dry broad-leaved forest on tops and steep slopes of highly eroded karst limestone mountain composed with gray solid marble limestone allied to Long Dai River, at elevation 300-400 m a.s.l.

Creeping epiphytic and lithophytic vine to 10 m long with fleshy succulent leaves. Not common.

HAL 11524 13 April 2008
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, N.S.Khang