Shrub to 6 m tall, erect, spindly, sometimes flowering when less than 1 m tall. Branchlets angular, glabrous, slightly resinous. Phyllodes linear, 11–17.5 cm long, 1–1.5 mm wide, acute with a deciduous callus point, rather thick, glabrous; one longitudinal nerve forming a midrib, with 4–6 less prominent non-anastomosing nerves on each side of it; gland basal, inconspicuous; pulvinus 1.5–3 mm long. Spikes single at base of rudimentary axillary shoot, 15–20 mm long, rather open, yellow; peduncles 2–6 mm long, resinous. Flowers 5-merous; calyx broadly cupular, 0.4–0.6 mm long, lobed to middle, somewhat resinous, sometimes with a few marginal hairs; corolla 0.8–1.1 mm long, lobed to middle, glabrous; ovary glabrous, resinous. Pods straight, linear, acute, to 6.5 cm long, 2–2.5 mm wide at widest part, 1.5 mm wide at isthmuses, glabrous, slightly resinous; valves rather thick with raised reticulate nerves, constricted between seeds and raised over them. Seeds longitudinal, obloid, c. 2.6 mm long, c. 1.6 mm wide; aril pale yellow, folded twice beneath seed.
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