Farmer's Weekly

CONSERVATION Three Australian invaders threatening SA environment

The hickory or screw-pod wattle (Acacia implexa) is an erect tree up to 15m tall. It has a single stem or is divided near ground level into two or three main stems. The leaves are dark green, narrowly elliptic and sickle-shaped, 7cm to 20cm long and 6mm to 25mm wide, and narrow at the base. The bark is rough and greyish.

The flowers are arranged in globular heads, are creamy to

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