Upright to spreading tree to about 12 m tall, the branchlets angled or flattened. Phyllodes sickle-shaped, 6-13 cm long, 0.5-1 cm wide, waxy-blue, with (1-2)3 longitudinal veins, tip pointed,1 gland near the base. Flower clusters mostly of 2-4 flower heads. Flower heads globular, of 10-20 flowers, golden; autumn and winter. Fruit pods straight to curved, 3-8 cm long, 1-2 cm wide.
A. harpophylla Benth., Brigalow, from Qld and NSW has silvery blue sickle-shaped phyllodes with no prominent veins; A. homalophylla Benth., Yarran, from Qld, NSW and Vic has thick, smooth phyllodes with numerous, scarcely visible fine veins. Syn. A. omalophylla Benth. is a mis-spelling.
Qld, NSW, Vic.
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.