FLORA OF VIETNAM
Acanthaceae Quang Nam Prov., Phuoc Son Distr., Phuoc My Municipality around point 15°20′25”N 107°40′27”E.

Primary closed evergreen broad-leaved lowland wet forest on steep slopes of low mountains composed with shale and granite at elevation 500-600 m a.s.l.

Terrestrial herb along wet humid shady rocky stream canyon. Flowers light yellowish. Locally common.

HAL 11963 6 January 2009
Coll.: L.Averyanov, P.K.Loc, P.V.The, N.T.Vinh