Xizang (Tibet): Riwoqe Xian.
E of the city of Riwoqe on road (highway 317 + 214) from Riwoqe (Riwoche) to Changdu (Chamdo) along Gei Qu (Gei River).
Valley and slopes with young Picea forest and adjacent meadow along small stream running into Zi Qu (Zi River), a tributary of the Lancang Jiang (Mekong River).
31°11'3"N,
96°36'19"E;
4300 m.
Open slope with shrubs.Calyx light green with purple stripes; petals greenish.
David E. Boufford, Jia-Hui CHEN, Susan L. Kelley, J. LI, Richard H. Ree, Hang SUN & Yong-Hong ZHANG