Northern Vietnam, Lao Cai Prov., Van Ban Distr., to the west of Nam Xay village (21°58′42′'N, 104°00′37′'E). Primary broad-leaved evergreen wet montane forest with Fokienia hodginsii (as emergent) on very steep rocky slope near top of ridge at elev. 1750 m a.s.l. Shrub 5-7 m hg. Flowers white with pink-violet small marks. Not rare. Usual co-dominant of shrub stratum, especially along tops of ridges.