White Bark Acacia is a large thorny tree attaining a height of 35 m and a diameter at breast height of 100 cm. The stout trunk is divided into several wide branches. Open-grown specimens have a characteristic wide umbrella-like crown. Bark is white to yellowish gray, smooth, on old trees becoming black and rough. Leaves double compound, with 4-13 pairs of pinnae, each with 5-30 pairs of leaflets. Circular glands found on the rachis below the junction of paired-pinnae. The feathery green foliage offers a strong contrast to the light-coloured bark. Spines 2-5 mm long, at the base of leaves. Flowers conspicuous, light-yellow to cream in colour, in pendunculate glomerules aggregated in panicles, 5-merous, corolla 1.2-2 mm long, at the end of branches or in leaf axils. Pods yellow, green or brown in colour, flat and fairly straight, 10-20 cm long, 5-10 mm wide, containing 10-20 smooth, oblong seeds, dark brown in colour, 6 x 4 mm in size.