FLORA OF VIETNAM
Apocynaceae

N. Vietnam, Thanh Hoa prov., Ba Thuoc distr., Co Lung municipality,
territory of Pu Luong protected area, near Co Lung village
(20°27′28′'N, 105°12′18′'E). Primary broad-leaved evergreen forest
on rocky slope of remnant highly eroded karst limestone ridge
at elev. 400-500 m a.s.l. Shrublet about 1 m hg with milky juice on
rocky cliff. Flowers white. Not common.

HAL 1114 17 April 2001

Collectors: N.T.Hiep, L.Averyanov, N.T.Vinh, D.T.Doan.