FLORA OF VIETNAM
Rubiaceae
Ophyorrhiza sp.

Vietnam, Lang Son Prov., Bac Son Distr., Tan Tri Municipality, around Na Mau village, Khau Kieng ridge composed with shale.

Deeply degraded remnants of primary and secondary broadleaved evergreen wet forest with bamboo at elevation 800-1100 m a.s.l.

Terrestrial herb 1-1.5 m tall on shady rocky slope. Flowers white, tepals with pink-violet tint. Very common.

HAL 6788 15 March 2005.

Collectors: L.Averyanov, N.T.Hiep, P.V.The, A.Averyanova.