Hoa Binh Prov., Tan Lac Distr., Nam Son Comm., Xom Vill., near Dinh Cot Moc Mt., around point 20033′46″ N, 105008′44 E, 1059 m a.s.l., limestone mt. In heavily logged primary closed evergreen broad-leaved mixed with small bamboo (Sat truon), suffered from forest fires submontane forests and woodlands, slopes and ridges Between rocks and lithophyte; flowers greenish
CPC 807 30 Oct 2010 Photos: Coll.: NQ Hieu, PK Loc, NT Vinh, NS Khang