Luang Prabang prov., Pon Xay distr., Houay Man village, Phou Tham Keo Mountain, around point 19°57′44.2′'N 102°25′45.8′'E. Degraded primary evergreen and semideciduous forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 500-650 m a.s.l. Caulifloric tree to 20 m tall and 25 cm DBH on steep rocky mountain slope. Flowers greenish. Not rare. LA-VN 2069 4 April 2017 Photos Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.Maisak, Vichith Lamxay, Koudkeo Phommachanh, Phizar Sayalath, Keooudone Souvannakhoummane.
Coordinates (geographic position):19° 57′ 44.2″ N, 102° 25′ 45.8″ E ±1000 mRecord creation: 2021-12-02, Tatiana Maisak, PhotoScan D2Citation: Specimen LE 01077678 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01077678