Acacia pulviniformis is a shrub of the genus Acacia and the subgenus Phyllodineae. It is native to an area in the Wheatbelt and Great Southern regions of Western Australia. The prostrate spinescent shrub typically grows to a height of 0.05 to 0.25 metres (0.2 to 0.8 ft). It blooms from August to October and produces yellow flowers.