Plants 15–30 cm. Taproot long-conic. Stem reduced, branched at base, branches longer than the main stem. Basal petioles 4–9 cm, sheaths broad; blade ovate-oblong in outline, 3–5 × 2–3.5 cm, 2-pinnate/pinnatifid; pinnae subsessile, 3–5 pairs, ovate or broad-ovate, 1.5–2 × 1–1.5 cm, margin pinnatifid; ultimate segments entire or 2–3-toothed. Leaves reduced upwards. Umbels 2–13 cm across; peduncles 7–16 cm; bracts 3–5, leaf-like, 2-pinnate, apex pinnate; rays 9–13, (1–)3–7 cm, ascending-spreading; bracteoles 2–5, ovate oblong to ovate-lanceolate, as long as or exceeding the flowers, often 3-toothed; pedicels 9–13. Calyx teeth minute. Petals white, 1.2–1.5 × 1–1.2 mm. Fruit broadly ovoid, 2.5–3.5 × 2–2.5 mm, base truncate or slightly cordate. Seed face concave. Fl. and fr. Jul–Aug.
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