Acacia ataxiphylla, commonly known as the Large-fruited Tammin wattle, is a shrub belonging to the genus Acacia. It is native to Western Australia. The shrub typically grows to a height of 0.15 to 0.6 metres (0.49 to 2.0 ft). Phyllodes are continuous with branchlets but without forming cauline wings. They are narrowly linear and straight to shallowly curved or shallowly sigmoid in shape. Typically they are 15 to 60 millimetres (0.6 to 2.4 in) long and 1 to 2 mm (0.04 to 0.08 in) wide and shallowly recurved to uncinate at the apex. Two varieties are recognized :