Description from Flora of China
Osmorhiza laxa Royle, Ill. Bot. Himal. Mts. 233. 1839; Washingtonia laxa (Royle) Koso-Poljanski ex B. Fedtschenko.
Leaf segments broad-ovate or broadly long-ovate, acuminate, the basal pair bilobed or 2–3-parted, usually irregularly coarsely toothed.
The roots are used medicinally.
Forests, grassy places in valleys; 1600–3500 m. S Gansu, Guizhou, S Shaanxi, W Sichuan, S Xizang, NW Yunnan [Bhutan, N India, Kashmir, Nepal, Pakistan].