Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, around point 23.11410°N 104.84506°E steep rocky slopes composed with highly eroded limestone at elevation 1600–1700 m a.s.l. Primary evergreen broad-leaved and coniferous very humid forest. Treelet on shady rocky slope. Occasional. 5 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1344 (HN, LE01061196, LE01066868).