FLORA OF VIETNAM
Plants of Ngoc Son-Ngo Luong Nature Reserve

Apocynaceae (Asclepiadaceae)
Marsdenia sp. Hoa Binh Prov., Lac Son Distr., Ngoc Son Municipality, Khu village, around point 20?27′42″ N, 105?18′34″ E, 611 m a.s.l.

In logged primary closed evergreen broad-leaved lowland forests on foot and slopes of limestone mountains. Rare. Herbaceous vine, 5-10 m long. Flowers at first whitish turning yellowish. HAL 9031 28 Jul 2006 Collectors: Phan Ke Loc, Nguyen Sinh Khang & Nguyen Tien Vinh

Collected with the financial support from NYBG, U.S.A.