FLORA OF VIETNAM
Polygalaceae
Polygala sp.

Cao Bang Prov., Nguyen Binh Distr., Ca Thanh Municipality, Cao Lu village, around point 22°42′47.7″N, 105°51′50.8″E.

Primary coniferous forest with Pseudotsuga sinensis along highly eroded rocky limestone ridge at elevation about 1300 m a.s.l.

Shrub 2 m tall on very steep rocky slope. Flowers light blue-purple. Common.

4 October 2013 CPC 5387
L.Averyanov, N.T.Hiep, L.M.Tuan, N.S.Khang, T.Maisak, L.Osinovets