Hoa Binh Prov., Tan Lac Distr., Nam Son Comm., Xom Vill., Dinh Cot Moc Mt., around point 20033′44″ N, 105008′29 E, 1140 m a.s.l., limestone mt. In heavily logged primary and secondary opened evergreen broad-leaved mixed with small bamboo (Sat truon), suffered from forest fires submontane woodlands, ridges Lithophyte
CPC 792 29 Oct 2010 Coll.: NQ Hieu, PK Loc, NT Vinh, NS Khang & BV Ha