Northern Vietnam, Lao Cai Prov., Van Ban Distr., Khanh Yen Ha municipality, to the SW of Na Nheo village (in the vicinity of point 21°58′39′'N, 104°14′35′'E). Primary closed evergreen broad-leaved submontane forest with Fokienia hodginsii on steep granite and quartzite slopes at elev. 1250-1350 m a.s.l. Deciduous shrub 5-7 m hg on very steep slope. Flowers light green. Occasional (lower limit of altitudinal distribution in the area).