Acacia incrassata is a shrub belonging to the genus Acacia and the subgenus Phyllodineae. It is native to an area along the west coast in the Wheatbelt regions of Western Australia. The erect pungent shrub typically grows to a height of 0.1 to 0.3 metres (0.3 to 1.0 ft) and produces yellow flowers from June to August.