Lang Son Prov., Huu Lung Distr., Huu Lien Commune, Coc vill., Huu Lien Nature Reserve, on ridges of limestone mts., around point 21°40′28” N, 106°22′34” E, 350 m.
In heavily logged primary broad-leaved woodlands in on ridges of limestone lowland mountains. Treelet, ca. 5-7 x 0.15 m. Bearing old seeds. HAL 11219 25 Sep 2007 Photos: 23282 Coll.: P.K. Loc, N.T.Vinh & H.V. Lien
Grant from MOST, Council for Natural Science, Section of Life Sciences (6.077.06), Vietnam