Description from Flora of China
Herbs, perennial, acaulescent or shortly caulescent, ascending, rosette but rarely closely appressed to soil surface. Taproot stout, vertical, elongate. Stem base densely clothed in fibrous remnant sheaths. Basal leaves petiolate; blade 2–3-pinnatisect; ultimate segments linear. Umbels compound, solitary terminal umbel usually sessile, appearing as a cluster of simple umbels, lateral umbels few to several, pedunculate, obviously compound; bracts and bracteoles few to several, foliaceous, 1–2-pinnate, ultimate segments linear; rays numerous, very unequal. Calyx teeth conspicuous, linear or lanceolate, unequal. Petals white, purplish to deep purple, obovate, costa yellowish, apex inflexed, acute. Fruit dorsally compressed; dorsal ribs filiform, prominent, narrowly winged, lateral broadly winged, wings more than 2 × width of dorsal wings; vittae 1–2 in each furrow, 2–4 on commissure. Seed face slightly concave. Carpophore 2-cleft to base.
Three or four species: Afghanistan, China, Bhutan, N India, Nepal, Pakistan, Sikkim; one species in China.
(Authors: She Menglan (佘孟兰 Sheh Meng-lan); Mark F. Watson)