Small tree or shrub, rarely growing more than 5-6 m tall, the branchlets with ridges running down the stem. Leaves bipinnate, with 14-24 divisions, each with 20-30 opposite pairs of leaflets 6-8 mm long, 1-4 mm wide. Flower clusters axillary, sometimes 2 per axil, yellow to reddish. Fruit pods 8-12 cm long, 1.5-2.5 cm wide; seeds 6-12, black. Syn. Albizia lophantha (Willd.) Benth.
WA (but naturalised in most states). Naturalised in SA, NSW, Tas and Vic, especially in coastal areas, where the seed can remain viable for many years.
Source: (2002). Mimosaceae. In: . Horticultural Flora of South-eastern Australia. Volume 3. Flowering plants. Dicotyledons. Part 2. The identification of garden and cultivated plants. University of New South Wales Press.