Acacia acrionastes is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a spindly, glabrous shrub or tree with linear phyllodes, flowers arranged in a racemes with 10 to 15 spherical heads of flowers, each with 12 to 16 creamy yellow flowers, and leathery pods up to 10 mm (0.39 in) long.

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