Plants 35–40 cm high. Fibrous roots brown and numerous. Stems 2 or 3, erect. Basal leaves several; petioles 4–15 cm; leaf blade subrounded, round-cordate or pentagonal, 4–22 cm, palmately 3–5-parted, margin sharply irregular-serrate; central segment cuneate-obovate or ovate, 1.5–7 × 1.2–4.5 cm; lateral segments parted nearly to base, base cuneate. Cauline leaves sessile or short-petiolate; blade palmately 3–5-parted. Peduncles 2–3-trichotomously branched, slender and elongate; bracts small, long-ovate, ca. 0.5 mm; rays 0.8–2 cm; umbellules 4–6-flowered. Staminate flowers 3–5 per umbellule; pedicels ca. 3 mm; petals white, broadly obovate. Fertile flowers 1 per umbellule, sessile; calyx teeth narrow-ovate, ca. 0.3 mm; styles 2–2.5 mm, recurved. Fruit ovoid, ca. 3 × 2.5 mm, densely covered with pale yellow scales; vittae obscure. Fl. May, fr. Jun–Jul.
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