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.
In meadow and on slope.Corolla lobes white, tube yellowish green, base red or black.
D. E. Boufford, K. Fujikawa, S. L. Kelley, R. H. Ree, B. Xu, D. C. Zhang, J. W. Zhang, T. C. Zhang, W. D. Zhu