Sichuan: Maerkang (Barkam) Xian.
E of the city of Maerkang on road to Li Xian, then S on a dirt road to Maomuchu Cun.
Along stream and adjacent slopes with remnant forests of Picea and Betula with Hippophaƫ, Rosa, Cotoneaster and Hypericum.
31°47'57"N,
102°28'57"E;
3165 m.
Roadside and in gaps in forest in sun and shade.Plants to 1.5 m tall; petals creamy white; fruit immature, green.
D. E. Boufford, K. Fujikawa, S. L. Kelley, R. H. Ree, B. Xu, J. W. Zhang, T. C. Zhang, W. D. Zhu