Woody shrub or tree 2-10 m tall; bark grey fissured; hairs simple and glandular, dense on young growth less so on developed surfaces. 

<P>Phyllodes 1.5-7 cm long, 4-10 mm wide, falcate somewhat elliptic; phyllodes and stems soon with opaque resin; 3 veins conspicuous on seedlings, mature phyllodes with a few branching veins, 

<P>Inflorescence simple spike, oblong 8-30 mm; peduncle with simple and glandular hairs 3-15 mm long, flowers 5-merous. 

<P>Legumes 1-6 cm long, 5-25 mm wide, papery, sparsely hairy, oblong, transverse reticulate veins sometimes resinous, green-brown, wing 0-1 mm, rarely obvious. Seeds to 3-8 x 2-7 mm, relatively small, oval, glossy dark brown; funicle terminal, swollen into a flat creamy axil.