Hoa Binh Prov., Tan Lac Distr., Bac Son Comm., Hay Duoi Vill., Dac Lut Mt., around point 20034′11″ N, 105007′08″E, 980 m a.s.l., limestone mt. In logged primary closed evergreen broad-leaved submontane forests, ridges Lithophyte, perennial herb, up to 0.4 m tall
CPC 635 24 Oct 2041 Coll.: NQ Hieu, PK Loc, NT Vinh, NS Khang & BV Sinh