FLORA OF VIETNAM
Acanthaceae

Son La Prov., Van Ho Distr., Tan Xuan comm., A Lay village, around point 20°40′46.2N 104°39′49.6E.

Secondary evergreen broad-leaved forest on very steep rocky slopes composed with red-brown sandstone and shale at elevation 1300-1500 m a.s.l.

Treelet 3-4 m tall on shady slope. Flowers light violet to almost white. Common.

1 October 2016 CPC 8157 Photos
Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.V.Maisak, N.T.Son.