Xanthosia
20 species endemic Aust.; all states and territories except NT
Herbs or small shrubs. Leaves toothed to lobed or dissected or rarely entire. Umbels usually compound, sometimes simple or reduced to a few or a single flower. Compound umbels usually with 3–4 rays and as many bracts; umbellules with 2–3 bracts and several almost sessile flowers. Calyx lobes broad, orbicular to lanceolate. Petals usually with a much inflexed apex. Fruit without vittae.