Shrub 1–3 (–5) m high. Branchlets slender and arching or pendulous at their extremities, with appressed fine hairs. Phyllodes scattered, never tightly clustered, linear to very narrowly elliptic, straight to slightly curved, flat, 2–3.5 (–6.5) cm long, 1–2 (–2.5) mm wide, pungent, with 3 veins (the central one the most prominent, the lateral two sometimes obscure); anastomosing veins absent; gland basal, minute, often absent; pulvinus 0.5–1 mm long. Inflorescences simple; peduncles (3–) 5–8 mm long; spikes interrupted, (5–) 10–25 mm long, pale yellow to almost lemon yellow; flowers 4-merous, 5–8 (–15) and widely spaced within the spike; sepals united, ciliolate; petals free. Pods linear, curved, irregularly constricted between seeds, 2.5–3.5 (–5) cm long, 2–4 mm wide. Seeds ellipsoid; aril much-folded.
Grows on and near river banks, often within 5 m of the waters edge, in mixed-species shrub vegetation, dense scrub and riparian native grasslands and sedgelands.
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