Annual to perennial herbs with a slender to thickened taproot. Leaves 2–4-pinnate, segments dentate or pinnatifid, petiolate. Inflorescence a compound umbel, terminal and lateral; involucral bracts absent; umbellules with 1–5 bracteoles. Flowers polygamous or bisexual, white or yellowish-green; sepals vestigial or absent; petals oblong or cuneate, apex inflexed; nectary conical. Fruit long-ovate to linear, attenuate into a beak at apex, flattened laterally, smooth or bristly; vittae obscure or absent; mericarps without ribs; carpophore almost entire or bifid at apex.
15 species native to temperate Asia and Europe; 1 species naturalised in Australia.