Plants perennial, 10–100 cm, pubescent throughout. Root cylindrical or fusiform, 5–15 × 0.5–1 cm. Stems 1–2, little-branched. Basal petioles 2–20 cm; bade simple (rarely ternate), cordate-ovate, (1–)3–8 × (1–)2–7 cm, margins coarsely serrate. Cauline leaves few, ternate, 3-lobed or 1-pinnate, rarely entire. Umbels 3–6 cm across; bracts absent or 1–7, linear, 3–8 mm; rays (6–)10–25, 1.5–4 cm, unequal, pubescent or scabrous; bracteoles 1–6, linear, 2.5–4 mm, ca. equal to or longer than pedicels, glabrous; umbellules 9–12 mm across, 10–20-flowered, usually central flowers subsessile and sterile; pedicels 0.5–3.5 mm. Calyx teeth obsolete. Petals white or purplish, obcordate, apex with incurved lobule. Stylopodium conic; styles ca. 2–3 × stylopodium. Fruit cordate-ovoid, ca. 1.5–2 × 1–1.5 mm, surface granulate with dense, short papillae; vittae 2–3 in each furrow, 2–4 on commissure. Seed face plane. Fl. Apr–Aug, fr. Aug–Oct. 2n = 18*.
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