[2] The inflorescences occur in groups of two to eight usually as axillary clusters with spherical flower-heads containing 20 to 40 cream coloured flowers.

The thinly coriaceous seed pods that form after flowering have a length of up to 12.5 cm (4.9 in) and a width of 10 to 13 mm (0.39 to 0.51 in) and have a prominent nerve along the margin.

The slightly shiny dark brown flat seeds within the pod have an oblong to orbicular shape with a length of 6 to 7 mm (0.24 to 0.28 in).

[1] The species was first formally described by the botanist George Bentham in 1864 as part of the work Flora Australiensis.

It was reclassified as Racosperma fasciculiferum in 1987 by Leslie Pedley then transferred back to genus Acacia in 2001.