Slender shrub or small tree to 5 m, branchlets apically angular together with phyllodes minutely silky pubescent becoming glabrous, often appearing silvery, trunk smooth. 

<P>Phyllodes falcate, 7-19 cm long, 1-2.5 cm wide, glaucous to silvery, 3 principal longitudinal veins and numerous fine inconspicuous longitudinal veins between them; gland basal, just above the pulvinus on the upper margin. 

<P>Inflorescences of mostly twin spikes from the upper phyllode axils; peduncles c. 1 cm, spikes lax, 2-4 cm, flowers glabrous or pubescent, 5-merous. 

<P>Legumes straight, to 8 cm long, 2-3 mm wide, swollen above the seeds and flatter between them, slightly constricted between the seeds, frequently many legumes produced on each flower spike so that the legumes appear bunched or clustered. Seeds longitudinal, black, shiny 4-5 mm long, 2-2.5 ram wide, funicle folded over the apex of the seed and terminating in a yellow aril.