Thanh Hoa Prov., Quan Son Distr., Son Dien Municipality, around point 20°16′59″N 104°48′21″E, 800 m, shale mountains on foot of limestone mountains, in secondary evergreen broad-leaved and bamboo lowland forests on slopes.
Rare.
HAL 11213 26 Aug. 2007 Coll.: P.K. Loc, N.S. Khang & N.T.Vinh
Grant from MOST, Council for Natural Science, Section of Life Sciences (6.077.06), Vietnam