Erect, somewhat diffuse, spreading, viscid, aromatic shrubs 2-3 m high, with a number of slender branches arising from near ground level; branchlets slender, erect angular and very viscid towards their apices, becoming terete and less viscid on older stems and often covered with a blackish sooty substance. 

<P>Phyllodes narrow-linear, compressed, never terete, 5-10 cm long, 1-1.5 mm broad, erect, mostly slightly curved, viscid, sticky and shiny with a resinous odour, veins longitudinal resinous, 8 in all (including margins), 3-veined on each face, often shallowly grooved between veins, apex abruptly uncinate; glands small on upper margin c. 2-3 mm above the base. 

<P>Inflorescences simple and axillary, solitary or twin; flower-heads globular, pale yellow, c. 30-flowered; peduncles slender,.8-13 mm long, viscid; flowers 4-merous. 

<P>Legumes linear, 6-15 cm long, 2.5-3.5 mm broad, flat straight or slightly curved, viscid when young, dark brown when mature, margins thickened and straw coloured, constricted between the seeds. Seeds longitudinal in legume, obloid-ellipsoid; funicle much folded above a large thickened aril.