FLORA OF VIETNAM Acanthaceae Acanthus leucostachyus Hoa Binh Prov., Lac Son Distr., Ngoc Son Municipality, Khu Village, Khu Na Mt., around point 20°26′43”N 105°19′57”E.
On wet, open sites, especially along stream banks of heavily logged closed primary evergreen broad-leaved forest on slopes of limestone mts., at elevation about 600-650 m a.s.l.
Terrestrial, 0.2-0.3 m tall. Flowers white. Occasional common.