Rather stout: stems up to c. 25 cm. tall. Lvs us. many, crowded, erect or ascending, (5)-6-10-(15) × 2-5 cm., including stout petiole (2)-5-8 cm. long; sheath broad, narrowed to apex. Lamina 2-3-(4)-pinnate, pinnae plumosely arranged. Primary pinnae 8-12 pairs, ± 1·5-2 cm. × 5-10 cm.; lower distant, upper approximate, pinnately several times finely dissected; final segs c. 5-7 mm. long, capillary; hair-points flexuous, up to c. 5 mm. long. Umbels 1-4, compound, paniculately arranged. Bracts with broad sheathing base, narrowed to short lamina. primary rays 8-15, slender; involucral bracts linear. Fr. ovoid-oblong, ± 5 mm. long. Mericarps us. one 5-, the other 4-winged. Vittae 1-(2) per furrow, 2-(4) on commissural face.
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