Plants ca. 50 cm, roughened and hispid throughout, not onion-scented. Stem slender, solitary, paniculate-branched, lower branches alternate, upper branches verticillate. Leaf blades broadly ovate, ternate-3–4-pinnatisect; ultimate segments ca. 5 mm, margins triangular-toothed or lobed, apex acute, mucronate. Upper leaves often bladeless, petioles wholly sheathing. Terminal umbel long-pedunculate, lateral umbels few, shorter than terminal; umbels 5–10 cm across; bracts few, linear, persistent; rays 10–18, subequal; bracteoles several, subulate or narrow-lanceolate, glabrous; umbellules 10–15-flowered. Petals abaxially sparsely pubescent. Stylopodium low-conic, base dilated. Fruit broadly ellipsoid or obovoid, 8–10 × 4–7 mm, sparsely pubescent; lateral wings broad; vittae 1 in each furrow, 2–6 on commissure, unequal. Fl. Jun, fr. Jul.

Moist places on mountain slopes. N Gansu (Sunan).