Quang Binh Prov., Minh Hoa Distr., Thuong Hoa municipality, environs of Mo O O O village, around point 17°39′21.1”N 105°54′41.7”E.
Remnants of short tall broad-leaved primary forest on rocky top of remnant mountain composed with highly eroded solid crystalline limestone at elevation about 570 m a.s.l.
Treelet 3-4 (to 10 m?) m tall on rocky mountain top. Flower buds whitish. Very common. Co-dominant of short tall mountain top forest.
CPC 3850 28 July 2011 Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Vinh.