Xizang (Tibet): Zuogong (Zogang) Xian.
Dongda-La (pass), border of Markam and Zogang Xian on highway 318.
Scree slopes, rocky vegetated slopes and adjacent level area at pass
Gravelly or stony soils on level areas and on shallow slopes.Corolla purple.
D. E. Boufford, S. L. Kelley, R. H. Ree & S. K. Wu