FLORA OF VIETNAM
Rubiaceae
Oldenlandia sp.

Son La Prov., Mai Son Distr., Muong Tranh Municipality, Bong village, around point 21°14′51″N 103°49′17″E.

Broad-leaved secondary open dry forest on steep slopes composed with clay shale at elev. 900-1200 m a.s.l.

Herbaceous vine up to 5 m long in open secondary shrubs on steep mountain slope. Flowers yellowish-white. Very common.

HAL 9596 07 Nov. 2006
Coll.: Nguyen Tien Hiep, L.Averyanov, Pham Van The.