A small to medium tree to 25m woth heavily branched or spreading crown with hard dark grey or grey brown bark with deep verticle furrows and the inner bark is red and fibrous. Leaves are grey green, flowers grow as a bright yellow flower spkike from May to sometimes September, followed by a woody, oblong, flat seed pod from October to November. Seed is produced in abundance 4 years after planting and is a good shade tree and a food plant for the Northern Imperial Blue Butterfly. This species occurs in the Cape York Peninsula, NE QLD, Torres Strait and PNG.
A tree growing 18 - 20m in height and trunk can reach 2m in diameter with canopy being 5-12m in diameter. Leaves drop before flowering from Oct - Dec and this species can be used as an ornamental, wind protection, shade and other uses including sustenance. It is endemic to a limited region - mostly Central QLD to Nothern NSW but it is quite hardy and can tolerate a range of climates and soils.
A tree to 20m with large spreading crown and drooping branches, a dark grey, fibrous short trunk and narrow grey-green dullish leaves. Flwoers are usually cream but can occasionally be pink and these can both occur on the same tree at one time from August to February. Useful as a windbreak, for shelterbelts, shade, an ornamental, nectar production for honey (although flowering can be unreliable), a food source for native birds, insects and other fauna and durable hard timber. Found on banks or rivers and lakes in QLD, NSW, VIC, SA, usually in low lying areas where water once lay.
A tree which can grow to 20m tall but more often 6-10m with rough, furrowed bark which is somewhat shaggy and globular pale yellow flowers. This species occurs from the Cape York Peninsula, NE QLD and as far south as SE QLD, usually growing in open forest but also found on margins of monsoon forest and rainforest. This is also a food plant for the larval stages of the Blue Jewel Butterfly.
A tree, 30-35m tall with a long smooth mottled trunk, although on exposed coastal headlands, they are often stunted. This moderately drought tolerant species grows on a wide variety of soils but usually found in shallow well drained clayey soils on valley slopes and ridges. Leaves are grey green and lance shaped, white flowers appear in Spring, fruit capsules mature 6-8 months later, these are then held for most of the year. Uses include timber production, flowers produce nectar for pollen production, ornamental and as an amenity plant. This species is distributed in open forests from SE QLD to Southern NSW and an isolated population in East Gippsland VIC.
Native to North and NE Australia this is an adaptable, small, straggly tree 6-10m tall with thorns on a creamy grey, deeply furrowed and corky trunk and branches, bifoliate or trifoliate leaves and red-orange pea flowers in terminal racemes from August to September. These are then followed by orange to dark yellow bean-like seeds borne in pods, which are constricted between the seeds. This species is distributed in all mainland states except Victoria.
A spreading tree/shrub to 10m with sometimes fibrous, hard or thick/spongy bark with linear leaves, new growth yellow-green. Pale yellow or cream coloured globular flowers appear from March to August, seed pods are often trwisted and coiled. This species is usually found on coastal dunes and ridges, sand plains, along rivers and creeks.
A low mainenance and adaptable often variable shrub, typically to 2m and has an attractive rounded, compact shape with dark green leaves with hairy white undersides and leaves appear silvery in the wind, sometimes small serrations may be found on leaf edges and tips. Pale yellow flowers which occur in pairs, mainly February to July, are densely packed in cylindrical spikes to 100mm long. Sometimes these old spikes may persist on the plant and seeds are enclosed in follicles in woody cones. This species produces a lot of nectar and attracts wildlife - the main pollinators are nectar feeding birds, insects and small mammals, seeds are also eaten by cockatoos.
A long lived, adaptable and hardy small to medium tree growing to 15m with smooth white bark often with varying degrees of insect damage/attack which leave distinctive scribble marks on the trunk or often multiple trunks. It has a relatively open crown with large, glossy and drooping leaves, silver-grey in colour and usually with a distict yellow mid vein. White flowers appear from Autumn to Spring which are then followed by small capsules to 9mm long. This is a useful street tree due to low height, foliage is often browsed by Koalas and attracts fauna when in flower for its nectar production, also older trees can develop hollow logs used by a range of Australian fauna.
A fast growing, nitrogen fixing and has been useful as a remediation species for degraded sites. A medium sized tree 6-15m tall, usually growing on gentle to moderately hilly areas preferring easterly and southerly aspects. Small cream to pale yellow flowers appear Dec-Jan and foliage is fernlike, with bipinnate, dark green leaves. This species has also naturalised in China, Japan, Taiwan, India, Israel, Southern Europe, Southern Africa, Madagascar, New Zealand, SW USA and some oceanic islands with warm climates.
A tall tree to 30m in its natural Northern QLD Rainforest habitat, but usually much smaller in cultivation, especially in cooler climates where is rarely exceeds 8m. It has beautiful glossy green leaves with new growth bronze and creamy white flowers at the end of branches and these usually occur in Summer in large racemes up to 20cm long! This species is widely cultivated as a street tree as it is easy to care for, has great form and masses of flowers.
A frost and wind tolerant tree 7-30m tall, usually found on light shallow soils on slopes or rises with variable bark and distinctive oval or lance shaped blue-grey foliage with a large spreading crown. Tiny white flwoers appear in clusters of 7 from September to January which are followed by seed capsules which often have a white waxy bloom on them. Wood is moderately durable, makes a good shade tree, an excellent habitat for nectar, birds, insects and mammals and useful as a medium level cover in windbreaks and for salinity control recharge plantings and an attractive ornamental.