Vietnam, Ha Giang Prov., Yen Minh Distr, Lao Va Chai Municipality, vicinities of Chi Sang village around point 23є06’20’’N, 105є04’25’’E at elevation about 1450 m a.s.l. Primary mossy coniferous forest with Tsuga sinensis on tops of high rocky ridge composed with highly eroded marble-like limestone.Lithophytic and epiphytic shrub up to 2 m tall along rocky mossy ridge edge. Fruits black-blue. Very common.