Acacia blakelyi is a shrub or tree belonging to the genus Acacia and the subgenus Phyllodineae.
The dense glabrous shrub or tree typically grows to a height of 1to. The branchlets are flexuous with caducous stipules. The green phyllodes are horizontally flattened with a linear to very narrowly elliptic shape. Each phyllode is 7to in length with a width of 2to and are coarsely pungent.[1] It blooms from July to September and produces yellow flowers. Inflorescences are made up of three to four globular heads each with a diameter of 7to each composed of 20 to 30 golden flowers. Following flowering seed pods that are straight to shallowly curved up to about 161NaN1 in length and 4to. The elliptic to narrowly elliptic shiny black seeds within are 5.5to long.[1]
It is native to an area in the Wheatbelt and the Mid West regions of Western Australia. It is found as far north as an area in between Denham and Kalbarri to around Piawaning in the south[1] on sand plains and gentle rises where it grows in sandy lateritic soils. The shrub is usually part of the understorey in woodland or tall shrubland communities.[1]