FLORA OF VIETNAM
Rubiaceae
Ophyorrhiza sp.

N. Vietnam, Tuyen Quang prov., Na Hang distr., Thanh Tuong
municipality, near Ban Bung village (22°16′26′'N, 105°25′58′'E).
Primary broad-leaved evergreen wet forest on very steep
limestone/shale slope of mountain stream canyon at elev. 300-450 m
a.s.l. Terrestrial and lithophyte herb on wet rocky slope. Flowers
white. Locally very common.

HAL 124 20 March 2001

Collectors: P.K.Loc, N.X.Tam, L. Averyanov.