Herbs annual. Taproot slender. Stem erect, slender, sparingly branched. Leaves long-petiolate; petiole with oblong sheathing base; leaf blade 3–4-pinnate/pinnatifid, thin, papery. Upper stem leaves small, petioles wholly sheathing. Umbels compound, terminal and lateral; bracts absent or rarely 1; rays numerous, subequal, spreading; bracteoles several, narrow, shorter than flowers. Flowers bisexual. Calyx teeth lanceolate, prominent, persistent. Petals oblong-obovate, pinkish white, abaxially pubescent, apex inflexed. Stylopodium widely low-conic; styles very short, deciduous. Fruit small, narrowly oblong, terete, glabrous; ribs equal, filiform, prominent; vittae 1–2 in each furrow, 2 on commissure. Carpophore bifid at apex.
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