Monoecious or dioecious trees or shrubs. Teeth (leaves) in whorls of 4–14 (in Victorian species). Male inflorescences simple short or elongate spikes, on branchlets which are usually distinct from vegetative branchlets. Female inflorescences on short lateral branchlets or more or less sessile. Cones pedunculate or sessile; valves mostly not extending much beyond the cone body, thickened and usually divided so that dorsal portion forms 1 or more distinct protuberances. Winged seeds brown to black, shining, glabrous.
59 species, all restricted to Australia, mainly in the south.
Usually growing in soils markedly deficient in nutrients.
Diagnostic features of the branchlets refer to dried material. Some characters necessary for identification in the following key can be accurately assessed only at magnifications greater than × 10.