Acacia cavealis is a shrub of the genus Acacia and the subgenus Plurinerves that is endemic to an area along the west coast of Australia.
The open spreading shrub typically grows to a height of 0.3to. It has branchlets that are covered in matted hair or with hairs embedded in resin giving them a cobweb-like appearance. The branchlets also have persistent stipules with a narrowly triangular shape and a length of up to . Like most species of Acacia it has phyllodes rather than true leaves. The patent to ascending pungent Phyllodes mostly patent to ascending phyllodes are clustered together in groups of two to four on each node, linear. The rigid evergreen phyllodes are straight and flat with a length of with eight nerves in all with three distant raised nerves on each face.[1] It blooms from November to February and produces yellow flowers.
It is native to an area in the Wheatbelt and Mid West regions of Western Australia where it is commonly situated on low rises and sandplains growing in sandy soils. It is found in coastal areas from around the Zuytdorp Cliffs in the north down to around Watheroo in the south extending to about inland as a part of low open woodland where it is usually associated with Banksia prionotes or in shrubland and heath communities.[1]