FLORA OF VIETNAM Apocynaceae Beaumontia pitardii Tsiang
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 steep slopes of highly eroded karst limestone hills composed with gray solid marble limestone along Long Dai River, at elevation about 30 m a.s.l.
Woody vine to 20 m long. Flowers white, fragrant. Not common.
HAL 11548 13 April 2008 photo Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, N.S.Khang