Plants perennial, ca. 1 m, pubescent. Root fusiform. Stem 3–4-branched. Basal petioles 7–20 cm; blade 1–3-ternate; ultimate segments ovate or ovate-lanceolate, 2–8 × 1–4 cm, abaxially glaucous, pubescent on veins. margins crenate or serrate, apex acuminate. Cauline leaves similar to basal, 2–3-ternate. Uppermost leaves 3-lobed, lobes lanceolate. Umbels 4–6 cm across; bracts absent; rays 9–15, 2–3.5 cm, unequal; bracteoles 1–3, linear, 5–10 cm, ca. equal to or shorter than pedicels; umbellules 8–12 mm across, 10–15-flowered; pedicels 5–15 mm. Calyx teeth conspicuous, lanceolate, 0.3–0.5 mm. Petals white, ovate or obovate, apex with incurved lobule. Stylopodium conic; styles 2–3 × stylopodium. Fruit cordate-ovoid, ca. 2 × 1.5–2 mm, glabrous; vittae 3 in each furrow, 4 on commissure. Seed face plane. Fl. and fr. Jun–Sep.
Grassy slopes, grassland along streams. Hebei, Heilongjiang, Liaoning [N Korea].