Acacia heteroneura is a species of flowering plant in the family Fabaceae and is endemic to Western Australia. It is a shrub with linear phyllodes, spherical to elliptic or oblong heads or bright golden yellow flowers and more or less erect, linear, straight pods.
Acacia heteroneura is a shrub that typically grows to a height of and has branchlets with silky hairs between , resinous ribs. Its phyllodes are linear to four-sided or flat in cross section, rigid, long and wide, green to grey-green or glaucous. The phyllodes have silky hairs between the veins, the veins often resinous and sometimes the central vein and edge veins prominent and wider than the secondary veins. The flowers are bright golden yellow and borne in one or two spherical, elliptic or oblong heads in axils, long and wide. Flowering time depends on variety, and the pods are normally more or less erect, linear and straight, up to long, wide and crust-like to woody, almost shiny and mottled with an aril up to the same length as the seed.
Acacia heteroneura was first formally described in 1855 by George Bentham in the journal Linnaea: Ein Journal für die Botanik in ihrem ganzen Umfange, oder Beiträge zur Pflanzenkunde from specimens collected by James Drummond. The specific epithet (heteroneura) means 'different nerved', referring to the phyllodes having one main and several fine veins.
In 1995, Richard Cowan and Bruce Maslin described four varieties of C. heteronema and the names are accepted by the Australian Plant Census:
This species of wattle grows in sand, sandy loam and gravel on sandplains, sand dunes, ridges and lateritic rises in the Avon Wheatbelt, Coolgardie, Gascoyne, Geraldton Sandplains, Great Sandy Desert, Great Victoria Desert, Mallee, Murchison and Yalgoo bioregions of Western Australia.
Acacia heteroneura and all its varieties are listed as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions.