[2] The shrub blooms between September and November producing up to 20 inflorescences on axillary racemes along an axis of around 6 cm (2.4 in) in length.

After flowering firm leathery brown seed pods form that are flat to curved with a length of 3 to 7 cm (1.2 to 2.8 in) and 12 to 21 mm (0.47 to 0.83 in).

[1] The species was first formally described by the botanist John Lindley in 1830 as part of the work Edwards's Botanical Register.

It was reclassified as Racosperma uncinatum in 1987 by Leslie Pedley then transferred back to the genus Acacia in 2006.

[3] It is found in the north eastern part of Mount Kaputar National Park in New South Wales where it grows along watercourses and on hillsides Eucalyptus and Callitris woodland communities in rocky sandy-loam soils.