Plants perennial, 30–45 cm, glabrous throughout. Root cylindrical, 10–15 × ca. 0.4 cm. Stem 2–3-branched. Basal and lower petioles 3–8 cm; blade 2-ternate; ultimate segments oblong-ovate or ovate, 1.5–2.5 × 1–1.5 cm, margins coarsely serrate, apex acuminate caudate. Upper leaves 1-pinnate, pinnae lanceolate. Umbels 4–6 cm across; bracts 2(–4), linear, 5–8 mm; rays 10–15, 2–3(–8) cm; bracteoles 1–6, linear, 1.5–3 mm, ca. equal to or shorter than pedicels; umbellules 4–6 mm across, 8–15-flowered; pedicels 2–3 mm. Calyx teeth obsolete. Petals white, obcordate, apex with incurved lobule. Stylopodium short conic; styles 2–3 × stylopodium. Fruit ovoid, ca. 2.5 × 2 mm, base cordate, surface glabrous; vittae 3 in each furrow, 6 on commissure. Seed face plane. Fl. and fr. Jul–Sep.
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