Acacia implexa, commonly known as lightwood[1] or hickory wattle,[2][3] is a fast-growing Australian tree, the timber of which is used for furniture making.

After flowering, thick woody seed pods with a linear and twisted to coiled shape form with a length of 25 cm (9.8 in) and a width of 4 to 7 mm (0.16 to 0.28 in).

It was reclassified as Racosperma implexum by Leslie Pedley in 1987 and transferred back into its original genus in 2006.

[1] The tree is commonly found on fertile plains and in hilly country, where it is usually part of open forest communities and grows in shallow, drier sandy and clay soils.

[8] The Dharawal people used the flowering of Acacia implexa as a seasonal indicator that fires should not be lit unless they are on sand, and camping near creeks and rivers is avoided during this time.

[9] The Wiradjuri people of New South Wales use the seeds to make flour, and the bark as a medicine, and for fish poison.