Northern Vietnam, Lao Cai Prov., Van Ban Distr., to the west of Nam Xay village (21°58′18′'N, 104°00′24′'E). Primary coniferous (with Fokienia hodginsii) evergreen montane forest at elev. 1700 m a.s.l. Lithophyte herb 15-20 cm hg on vertical sides of mossy shady boulders on steep slope. Not common.