Plants perennial, 1–2 m, stout. Root cylindric, ca. 2.5 cm thick. Stem stout, ribbed, white-pubescent. Petioles 8–10 cm, sheaths ca. 7 × 3.5–4 cm, broad-ovate or saccate, pubescent; blade elliptic or triangular-ovate, 2–3-pinnate, glabrous; pinnae 3–4 pairs, subsessile, leaflets long-elliptic or lanceolate, 4–5 × 1.5–2.5 cm, margin serrate, sometimes 1–3-lobed. Umbels 10–20(–32) cm across; peduncles 16–20 cm, pubescent; bracts 5–9, long-lanceolate, puberulent; rays 28–65, 6–15 cm, purple-green, pubescent; bracteoles 4–8, 12–14 mm, linear; umbellules 25–50-flowered. Calyx teeth obsolete. Petals white, ovate. Fruit ellipsoid, broad-ovoid to suborbicular, 5–10 × 5–9 mm; dorsal ribs prominent, thick, obtuse, lateral ribs thick, broad-winged; vittae 1 in each furrow, absent on commissure. Fl. Jun–Jul, fr. Aug–Sep. n = 11*.
Shrubby thickets, damp grassy slopes; at elevations from 3,000-4,000 metres.
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