1. Blackwood (Acacia melanoxylon)
A widespread acacia species with dark wood; found from Adelaide east up to Queensland and Tasmania
2. Yellow Wattle (Acacia pycnantha)
The national tree of Australia, famous for its iconic yellow flowers. An understory plant in the southeastern eucalyptus forests.
3. Boab (Adansonia gregorii)
Native to northwestern Australia, this baobab species is large and hollow enough to be lived in by humans.
4. Queensland Kauri (Agathis robusta)
A primitive coniferous tree native to coastal Queensland and New Guinea. It was once extensively logged in the past.
4. Sydney Red Gum (Angophora costata)
A red-barked eucalypt tree native to much of eastern Australia. Smooth-barked unlike other members of the genus Angophora.
5. Bunya Pine (Araucaria bidwillii)
Not a pine, but an Araucarian. A morphologically-conservative conifer that has gone mostly unchanged since the Jurassic. From the mountains of southern Qld.
6. Norfolk Island Pine (Araucaria heterophylla)
A tall, skinny relative of the above Bunya pine, but tall and skinny. From Norfolk Island, off the Australian mainland, but planted in warm regions worldwide.
7. Bangalow Palm (Archontophoenix cunninghamiana)
This palm is found across tropical Australia's coast to the mountains. Prefers coastal, rainforest, and/or warm swampy habitat.
8. White Booyong (Argyrodendron trifoliatum)
A tall jungle tree native to the northeastern rainforests of Qld. & northern NSW
9. Grey Mangrove (Avicennia marina)
A mangrove found throughout the Pacific tropics. Has pneumatophore roots that stick up from the mud it grows in to aid in respiration.
10. She-oak (Casuarina cunninghamia)
She-oaks lack leaves but have woody twigs full of green chlorophyll, and are often mistaken for pines. Grows along coasts and rivers across Australia, and is a noxious invasive species in the Bahamas and Florida.
11. Ghost Gum (Corymbia apparrerinja)
A white-barked eucalypt native to arid central Australia.
12. Red Bloodwood (Corymbia gummifera)
A eucalypt native to the subtropical flats and low hills of Victoria and NSW.
13. River Red Gum (Eucalyptus camaldulensis)
A river-side eucalypt, with a wide distribution across nearly all of Australia so long as there's nearby fresh water. It tolerates flooding, and often needs it to recharge the soil with water.
14. Coolibah (Eucalyptus coolibah)
Found in the inland east of Australia, on seasonal floodplains and creeks and other areas too dry for the red gum. "Once a jolly swagman camped by a billabong/Under the shade of a coolibah tree..." goes the lyrics of Waltzing Matilda, Australia's most famous folk song.
15. Mallee (Eucalyptus dumosa)
"Mallee" is the colloquial term for a multi-stemmed eucalypt bush regardless of species. E. dumosa is just one of many bushy species.
16. Darwin Woolybutt (Eucalyptus miniata)
From the savannas and open woodlands of northern Australia (the entire region, not just the NT) comes the tree with one of the funniest names on the list.
17. Moreton Bay Fig (Ficus macrophylla)
A banyan or strangler-fig type jungle tree native to the coastal forests of southern Qld & NSW, and cultivated as an ornamental elsewhere.
18. Silky Oak (Grevillea robusta)
Despite its name, not an oak. Native to the subtropical forests of the east.
19. Macadamia (Macadamia integrefolia)
The tree from which macadamia nuts grow on. A native of the eastern subtropical rainforests.
20. Burrawang (Macrozamia moorei)
One of the world's largest cycads. Despite looking like a palm, it is in fact a relative of conifers. Native to southeastern Qld. & NSW.
21. Paperbark Tea Tree (Melaleuca quinquenervia)
Another Australian tree that went invasive outside of its range. A native of seasonally-wet areas along the east coast from Sydney to Cape York, into New Guinea and New Caledonia. Its peeling white bark is reminiscent of birches.
22. Quandong (Santalum acuminatum)
A fruiting desert shrub or small tree widespread across the Australian interior and south. Can be partially parasitic, stealing nutrients from acacias.
23. Australian Red Cedar (Toona ciliata)
Despite its name, it is unrelated to cedars as an angiosperm. A tall jungle tree with rich red wood, growing from Queensland into mainland Asia.
25. Wollemi Pine (Wollemia nobilis)
A tree discovered in a valley only in 1994. An ancient coniferspecies distantly related to Araucaria and Agathis.