Acacia oligoneura

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Acacia oligoneura is a shrub in the Acacia genus, native to a small area of northwestern Australia. It typically grows 1–5 metres tall and flowers from October to May with yellow blooms. The plant has many resinous stems and angular, flattened, smooth branchlets that are greenish-yellow to pale brown.

Like most Acacias, it has phyllodes instead of true leaves. The phyllodes are light olive-green, smooth, and narrowly oval to elliptic in shape, straight or slightly curved. They are about 9–20 cm long and 7–21 mm wide, with four prominent longitudinal nerves.

Acacia oligoneura occurs in the Kimberley region of Western Australia, in clay or lateritic soils over laterite or basalt. Its range extends east to Noonamah near Darwin, with populations in the Litchfield and Daly River catchments and around the Victoria River, where it grows on rocky slopes and plateaus in woodland communities.