List by family
Family
Plant Group
Genera
Species
Xanthorrhoeaceae
Three outer segments of the perianth are dry, stiff and bract like; inner three herbaceous, white, yellow or yellow and brown, always small.
Monocotyledon
Flax-lilies are long-lived, growing in tufts. Tough strap-like leaves, blue-purple flowers in panicles on long flowering stems, followed by succulent glossy blue or purple berries.
Grass-trees are monoecious, flowers small, white, in a tall cylindrical spike, narrow often wiry leaves from the summit of a trunk that may be wholly underground or up to 6m.