Screw pod wattle

Acacia implexa

Common name:

Screw pod wattle

Scientific name:

Acacia implexa

Alternative common names:

hickory (English)

A small spreading tree 3-15m high with greyish-green curved leaves, originating from Australia. Flower which appear in summer are pale yellow to cream fluffy and round, there are usually 4-8 flowers on a central axis. The pale brown, long seed pods are straight when young, but become twisted and coiled to allow the release of the seeds. Pods are 6-20 cm long, 6-7 mm wide, and firmly papery to leathery.

Additional Info

  • Where does this species come from?

    Australia

    What is its invasive status in South Africa?

    Existing legislation: CARA 2002 – Category 1 NEMBA – Category 1a

    Where in South Africa is it a problem?

    Western Cape

    How does it spread?

    Seed dispersal

    Why is it a problem?

    Competes with and has the potential to replace and reduce indigenous species. Screw pod wattle is a fast growing tree and invades agricultural lands.

    What does it look like?

    General description: A small spreading tree 3-15m high with greyish-green curved leaves. Bark: Smooth greyish or brownish bark, becoming corrugated at the base. Leaves: The leaves are greyish-green and curved, with several longitudinal veins. Flowers: Pale yellow to cream fluffy round flower are present in the summer months, December to March. Fruit/seeds: Pale brown, narrow seed pods, which are curved to twisted or coiled.

    Does the plant have any uses?

    Ornamental and as a shade tree.

    Plant me instead alternatives

    Cape safron (Cassine peragua), bladder nut (Diospyros whyteana), camphor tree (Tarchonanthus camphoratus)