Sichuan: Rangtang (Zamtang) Xian.
NW of the city of Rangtang (Zamtang) on road toward Sêrtar Xian along the Du-ke He ( Du-ke River).
Meadows and shrub thickets along small stream flowing into the Du-ke He; thickets on slopes and open areas around outcropping ledges.
32°29'18"N,
100°45'53"E;
3050-3100 m.
Stream bank in wet soil and in meadow at base of slope.Corolla pinkish purple.
David E. Boufford, Kazumi FUJIKAWA, Susan L. Kelley, Richard H. Ree, Bo XU, Da-Cai ZHANG, Jian-Wen ZHANG, Ti-Cao ZHANG, Wei-Dong ZHU