Bushy shrub or small tree to 3 m often suckering, branchlets terete but slightly angled at extremities, bark grey or brown at base, reddish on young branches. 

<P>Phyllodes narrowly elliptic to oblanceolate, slightly asymmetric narrowed towards base, abruptly narrowed to acute or obtuse apices, 6-9 cm long, 8-21 mm wide sometimes interspersed with a few smaller ones, straight or a little recurved, thinly coriaceous, glabrous, dark green, midrib slightly raised, lateral veins obscure. Gland on upper margin 8-12 mm from pulvinus.

<P>Inflorescences 1 per node, racemose, occasionally with a simple axillary peduncle or a small panicle. Racemes 2-4 cm long with 5-11 heads. Peduncles 4-5 mm long on racemes or 8-10 mm if simple, glabrous. Flower-heads globular, pale yellow, 10 mm diam. when fresh, flowers 25-40 densely arranged. Bracteoles peltate. Flowers 5-merous. Ovary glabrous or villous. 

<P>Legumes oblong to narrow oblong, not much raised over seeds, straight edged or a little constricted between seeds with occasional deep constrictions, to 9 cm long, 8 17 mm wide, up to 14 seeds per legume, finely reticulate, coriaceous, abruptly constricted at base into a thick stipe 2-3 mm long. Seeds transverse, close together, no pronounced partitions, oblong-ellipsoid 5-6 mm long, 2.5 mm wide, dull to shiny black, funicle light red-brown, to 40 mm long usually with 2-3 short folds before encircling seed in a U-shaped fold, aril clavate, and may extend 1/2-way down one side of the seed.