FLORA OF VIETNAM
Rubiaceae
Uncaria sp.

Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E.

Secondary shrubs on rocky slopes of low remnant mountains composed with highly eroded solid marble-like limestone at elevation about 350 m a.s.l.

Climbing shrub to 3 m tall. Common.

HAL 12689 16 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.