Description from Flora of China
Herbs, perennial. Taproot long, deeply rooted, irregularly thickened, usually with 1 to several globose tubers. Stem solitary, erect, base densely clothed in fibrous remnant sheaths. Leaves bluish green with prominent white veins, petiolate; blade 3–4-ternately dissected; ultimate segments linear, plane or falcate. Umbels compound, terminal on stem and branches; bracts absent; umbellules many-flowered, capitate; bracteoles several, lanceolate or ovate lanceolate, entire; pedicels obsolete. Calyx teeth subulate or lanceolate when young, becoming dilated. Petals yellowish, obovate, apex incurved, abaxially pubescent, paler, margins green or purplish-red. Stylopodium low-conic, base dilated, undulate; styles elongate, recurved. Fruit ellipsoid, strongly dorsally compressed, densely pubescent; dorsal ribs obscure, lateral ribs broad-winged; vittae 3–5 in each furrow, 10–12 on commissure. Seed face plane. Carpophore 2-cleft near base.
One species: China, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan; SW Asia (Iran).
(Authors: She Menglan (佘孟兰 Sheh Meng-lan); Mark F. Watson)