FLORA OF VIETNAM
Acanthaceae
Acanthus sp.

N. Vietnam, Hoa Binh prov., Da Bac distr., Cao Son municipality, Buoi
Truong station near Ba Tri Mountain (20°52′31′'N, 105°11′48′'E).
Secondary evergreen broad-leaved wet forest with bamboo on very steep
shale slope along river. Forest on shale with quartzite at 500-550 m
a.s.l. Terrestrial herb on very steep shady river slope. Flowers white
with green tint. Not common.

HAL 534 3 April 2001

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