Plants rather stout, 30–80 cm tall. Stems 1–2. Basal leaves petiolate, petioles 10–20 cm, glabrous; blade ovate in outline, 3.5–15 × 3–10 cm, 1–2-ternate; ultimate segments oblong-ovate or ovate-lanceolate, 1–11 × 0.5–2.5 cm, margins double serrate, apex caudate. Umbels 1.5–3 cm across in flower, to 7 cm in fruit; bracts absent; rays (7–)15–30(–40), 2–4 cm; bracteoles 2–3, ca. 0.8 mm; umbellules 2–3-flowered; pedicels 0.2–3 mm. Calyx teeth subulate, ca. 0.4 mm. Petals white, ca. 1.5 × 0.6 mm. Stylopodium conic; styles elongate; stylopodium plus style ca. 1.1 mm. Fruit ovoid, ca. 2–3 × 1.5–2 mm; ribs finely scabrid; vittae 1–3 in each furrow, 2–4 on commissure. Fl. Apr–Jun, fr. Jul–Aug.
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