Plants 0.5–1 m, glabrous throughout, glaucous. Stem fluted. Leaf blade broadly triangular-ovate, 3-pinnate, pinnae 4–5 pairs; ultimate segments long-ovate or broadly ovate, 1.5–2.5 × 1–1.8 cm, subleathery, abaxially glaucous, base cuneate or truncate, irregularly coarsely toothed. Upper leaves 3-lobed, lobules ovate-lanceolate, sheaths dilated, suborbicular. Umbels 8–13 cm across; bracts 1–2, broadly ovate or ovate-lanceolate, unequal; rays 7–16, stout, 4–7 cm; bracteoles 6–8, linear-lanceolate, shorter than flowers; umbellules 12–20-flowered. Calyx teeth obsolete or subulate. Stylopodium low-conic. Fruit ellipsoid, 0.8–1 × ca. 0.5 cm; lateral ribs narrowly winged; vittae 1 in each furrow, 2 on commissure. Fl. and fr. Aug–Oct.
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