It is endemic to western and northwestern Sichuan, China, growing in forests, forest edges, and grasslands at elevations of 3,100-3,850 meters.
It flowers from May to August and fruits from July to September.
The inflorescence is terminal, elongated, up to half or one-third the length of the stem, with small bract-like bracts.
白色、淡黄色、紫色、紫红色