Sichuan: Xiangcheng Xian.
W of Xiangcheng on highway XV09 to Reda Xiang on Reda side of pass over Ma'an Shan.
Remnant Picea-Quercus-Prunus-Salix forest and adjacent openings and loose stony slopes; mostly intact Quercus and mixed conifer forests from 3750 m to tree line.
29°2'41"N,
99°42'41"E;
3450-3800 m.
Picea forest.Shrub; ca. 1 m tall; leaves white on undersurface; flowers creamy white.
D. E. Boufford, B. Bartholomew, W. Y. Chen, M. J. Donoghue, R. H. Ree, H. Sun & S. K. Wu