A. floribunda (catkin wattle, white sallow wattle) is a dense, spreading shrub or small tree to 8 m. The phyllodes are narrow-linear, up to 19 cm long, with all veins indistinct. The flowers are cream or pale yellow, in long, loose, cylindrical spikes in the leaf axils, produced in spring. It is spreading from plantings at Dryandra and Araluen. Native to Queensland, New South Wales and Victoria. One of the earliest wattles to flower, soon after the break of season rains, is A. iteaphylla (Flinders Range wattle). It is a dense large shrub to 4 m. The phyllodes are grey-green, to 14cm long, narrow-linear with one prominent vein and usually a slightly curved tip. The flower-heads are globular, lemon-yellow, in small sprays from the leaf axils. A garden escape, it is spreading from plantings in the Perth area. Native to South Australia.A. longifolia (Sydney golden wattle) is a dense bushy shrub or small tree to 10m with dark grey bark. The cylindrical yellow flower spikes grow singly or in pairs from the phyllode axils. Two distinct forms have been introduced. Subspecies longifolia has bright green, linear phyllodes that can reach 20cm long and 1.5cm wide and are mostly thin and pliable. The pods are mostly straight. Subspecies sophoraehas thicker, shorter, broader and more rounded and sometimes fleshy phyllodes (to 12cm long and 3cm wide) and pods that are mostly coiled or contorted. A garden escape, this species grows on roadsides, creeklines, swamps and bushland from Perth to Manypeaks. Native to eastern Australia.

A. longifolia , PH

A. melanoxylon (blackwood) is a large tree to 30m with hard, dark grey bark, furrowed longi tudinally. The phyllodes are dark green, with three to five main veins and a prominent net-like reticulation in between. Short sprays of globular cream flower heads grow in the leaf axils in spring. This species spreads by root-suckers as well as seed - the bright red seed arils are attractive to birds. It can regenerate after disturbance to form dense thickets. A garden escape found from Perth to Albany and Dunsborough. It is a potentially serious weed of swamps from Augusta to Albany. Native to eastern Australia.

A. melanoxylon , PH

A. podalyriifolia (Queensland silver wattle) is an open shrub or small tree to 5m, bark smooth and grey, young twigs white. The phyllodes are broadly ovate to 6cm long, and silvery white. The showy, deep golden, globular flower heads are produced in terminal sprays in winter. A garden escape found on roadsides and spreading into bushland in the Perth area and around settlements. Native to Queensland and New South Wales.

A. podalyriifolia , PH

Australia's 'floral emblem' is A. pycnantha (golden wattle), an upright, loosely-branched tree to 8m. The phyllodes are broad-lanceolate to 15cm and often curved into a sickle shape. Golden-yellow globular flower heads are produced in sprays from the leaf axils in early spring. When growing wild it is sometimes confused with A. saligna, a Western Australian native. Because of its promotional image, packets of seed are often handed out free by national bodies to encourage 'tree-planting'. This is a problem as in Western Australia it is an abundant and increasing weed of roadsides and woodland throughout the western wheatbelt and the Darling Range from Perth to Albany. Native to New South Wales, Victoria and South Australia. During revegetation works, many Western Australian wattles may be planted outside their natural local range. In some instances they may establish and thus become naturalised at that site.
Wattles that have been observed to do this include: A. blakelyi (Blakely's wattle),
A.lasiocalyx(caterpillar wattle),
A. microbotrya (manna wattle) and
A. saligna(golden wreath wattle).
All have tough and long-lived seeds and, after a disturbance such as roadside grading or fire, they will naturalise away from the planting site. The source of the seed used for such rehabilitation work is seldom local (in fact much of the seed of A. saligna used in Western Australia is imported from India or even South Africa, where the species has become a major noxious weed).

A. pycnantha , PH

Leucaena leucocephala (lead tree) is a dense shrub or small tree with bipinnate leaves. The flower heads are axilliary, globular, greenish yellow or white, produced during May and June. Often planted in gardens or as a fodder shrub, it regenerates from seed after disturbance, forming dense thickets. A common weed of wetlands and riverine sites in the Kimberley and recorded from the Pilbara south to Exmouth. Native to tropical America.  

Leucaena leucocephala , GK

Prosopis pallida (mesquite) DP is a widespread but occasional weedy shrub or small tree found in rangelands, disturbed 'commons' and along rivers from Derby to Carnarvon. The leaves are composed of up to five pairs of pinnae and are slightly hairy. Paired thorns along the stem may reach 5cm long, but are usually shorter. A hybrid mesquite, derived from P. pallida, is a major problem near the coast between Onslow and Karratha; its leaves differ from P. pallida by having only one or two pairs of pinnae, and plants vary from thornless to those with thorns up to 10cm long. P. glandulosa (honey mesquite) DP is found on one station in the east Kimberley. Its leaflets are larger and more widely spaced than in other Western Australian mesquites.

Prosopis hybrid, JD