the only genus of the family Donatiaceae, of the aster order (Asterales), containing two species of small cushion plants, native to the subalpine regions of Tasmania, New Zealand, and South America. The little plants form dense spirals of narrow, thick, leathery leaves. Donatia flowers, borne singly at the ends of short stems, have 5 to 7 sepals and 5 to 10 petals. The top-shaped fruits contain a few fleshy seeds.