Acacia triptera, commonly known as spurwing wattle, is an erect or spreading shrub which is endemic to Australia. It grows to 2 metres high and has decurrent phyllodes which are and falcate or sigmoidal in shape. The bright yellow flowerheads appear from August to November, followed by curled or twisted brown seed pods which are 3 to 8 cm long and 2 to 4 mm wide. The species occurs on sandhills or rocky outcrops in mallee, woodland or heath in Victoria, New South Wales and Queensland.