The arsenic bush is a poisonous shrub that can grow up to 2-3m tall with yellow flowers. The leaves are arranged in pairs opposite each other, consisting of three or four pairs of ovate leaflets. The pods are cylindrical, 7-10cm long, containing shiny seeds. It is a common garden ornamental plant that also invades forest margins, savannah, riverbanks, roadsides, waste ground and plantations. It flowers from October to March.
Deciduous tree 10 to 20 m high with a spreading crown and often more than one trunk; bark is greenish smooth at first, aging to brown and rough. Leaves bright green, paler and sometimes densely hairy beneath, turning yellow in autumn; 3 – 9 pinnate, but mostly with 5 leaflets; leaflets coarsely toothed, 50 – 100 mm long.
This fast-growing species is particularly invasive along waterways (i.e. in riparian areas) and in sheltered forests in temperate zones, but it has the potential to invade other habitats.
Australian Blackwood is a tree up to 20 m high, with a bole of about 150 cm in diameter. The bark on older trunks is dark greyish-black in colour, deeply fissured and somewhat scaly. Younger branches areribbed, angular, or flattened towards their tips and are greenish in colour.
These branchletsare usually mostly hairless (glabrousorglabrescent), but the stems of younger plants are sometimes more obviously hairy (denselypubescent).
A small evergreen tree, growing 3-6m in height with branchlets covered in greyish or silvery-blue foliage. Leaves are 20-50mm long and are arranged around branchlets spirally.
Flowers which bloom in July to September, are bright yellow, globular shaped with showy sprays. Fruits are greyish-brown pods, approximately 100mm in length.
The bleeding heart tree is a small bushy shrub or tree reaching 6m. The trunk is pale grey to brown and smooth. The flowers are yellow-green to red, small, in terminal spikes 60–100mm long. Fruit is a green, two-lobed capsule, up to 10mm long with a yellow, oily aril. The leaves are poisonous to cattle and it contains latex, which can cause skin irritations.