Sichuan: Maerkang (Barkam) Xian: Zhuoke Ji.
Pass between Maerkang (Barkam) Xian and Xiaojin Xian on Mengbi Shan.
Grassy meadow on south side of ridge; Rhododendron thickets giving way to Abies forest with decreasing elevation on north side of ridge
31°42'22"N,
102°18'50"E;
3950-4150 m.
Rocky ridge at 4150 m.Corolla whitish at base, distally dark blue outside, dark purple inside.