Qinghai: Nangqen Xian.
ca. 30 km W of the town of Nangqen along the Xiao-Qu (Xiao River) in Xiao-long Gou.
Narrow gorge through steep, limestone cliffs.
32°15'21"N,
96°19'33"E;
4100-4200 m.
Deep, rich soil on upper part of slope at base of limestone cliff.Flowers white; fruits on recurved pedicel under leaves. Originally identified as Braya tibetica J. D. Hooker & Thomson.
David E. Boufford, Michael J. Donoghue, Xue-Feng LU & Tsun-Shen YING