Proteaceae includes conspicuous native plants
such as Banksia marginata, Telopea
truncata and Hakea species. All the species are trees or
shrubs. The family includes prominent members of alpine, subalpine, heath and rainforest communities.
The leaves are thick, leathery or hard, mostly alternate. They may
be deeply divided, toothed, entire or needle-like. The flowers have four tepals,
which are more-or-less petal-like and may be free or fused. Some
species have symmetrical flowers, but in most, the perianth is curved
to one side, and opens along a slit on the opposite side. The stamens
in the alpine shrub, Bellendena are free, but in the other
species are fused to the tepals. The ovary is unilocular and superior,
and in many species the style is elongate and topped by a flat disc
called a pollen presenter, which presses against the anthers in bud.