FLORA OF VIETNAM
Acanthaceae

N. Vietnam, Thanh Hoa prov., Ba Thuoc distr., Co Lung municipality,
territory of Pu Luong protected area, near Co Lung village, Nui Doan
(Pha Doan) mountain system (20°26′30′'N, 105°11′32′'E). Primary
evergreen broad-leaved dry forest along tops of remnant highly eroded
karst limestone ridge at elev. 500-550 m a.s.l. Herb or shrublet about
1 n hg. Leaves deep green above, light green with violet tint below.
Not rare.

HAL 1050 16 April 2001

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