Dioecious or polygamodioecious, or andromonecious or gynomonecious or polygamous (outside Victoria) shrubs or small trees, often viscid. Leaves simple or imparipinnate. Inflorescence axillary or terminal. Flowers regular; sepals 3–7, free, caducous or rarely persistent; petals absent; stamens 6–10(–16 outside Victoria), absent or rudimentary in female flowers; filaments shorter than anthers; disc small, absent in male flowers; style terminal, filiform; ovary 2–6-carpellate, usually viscid, rudimentary or absent in male flowers, 2 ovules per locule but usually only one reaching maturity. Fruit a 2–6-angled or -winged capsule, membranous, coriaceous or crustaceous, taking up to a year to mature; dehiscence septifragal or septicidal (only D. bursariifolia in Victoria) or rarely indehiscent (not in Victoria); seeds with testa covered by and usually fused to a hyaline membrane, but sometimes free or partially free at margin; aril absent or present (only D. hexandra in Victoria), white.
About 68 species, in the tropics, temperate Africa, the Pacific, and almost throughout Australia; 61 species (59 endemic) in Australia.