The open shrub typically grows to a height of. It has light grey and scarred branches and hairy branchlets with spinose stipules that have a length of around. Like most species of Acacia it has phyllodes rather than true leaves. The crowded, rigid, pungent and evergreenphyllodes have a length of and a width of and are usually narrower near the apex with nerves that are rarely evident. It blooms from April to June and produces yellow flowers.