Open erect shrub, prominent yellowish resinous ribs on smaller branchlets. Often suckers. Narrow, dull grey-green foliage, prominent midrib with many crowded lateral veins 3.5-14cm x 3-10mm. Pale yellow, 2-4 individual ball-shaped flowerheads per axil on slightly sticky stalks. Narrow thin pale brown pods 4-7cm x 2-4mm. Drought hardy, makes a good windbreak.