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  1. Acacia_implexa_flower_high Flower clusters by L. von Richter
  2. Acacia_implexa Curved fruit (6-20cm long) with black seeds by L. von Richter
  3. Acacia_implexa_2 Acacia implexa (5-12m high) by L. von Richter

Hickory Wattle

Acacia implexa


  • Erect shrub to spreading tree
  • Size: 5 – 12 m high
  • Leaves: phyllodes narrowly elliptic, falcate (sickle shaped), 7 – 18 cm long and 6 – 25 mm wide
  • Flowers: 4 – 8 pale yellow axillary clusters.
  • Fruit/seed: curved or twisted pod, 6 – 20 cm long and 4 – 7 mm wide. Seeds are black ellipsoid with cream coloured aril at one end.

What to Observe

  • First fully open flower cluster
  • Full flowering (record all days)
  • End of flowering (when 90% of the flowers have faded)
  • Open seed pods containing seeds (record all days)

ClimateWatch Science Advisor

We expect plants to start shooting and flowering earlier in the year as a result of climate change warming the Earth. They may also start appearing in new areas, as warmer temperatures enable them to live in environments that were previously too cold for them. Help scientists answer the question: "How are our animals, plants and ecosystems responding to climate change?".

When To Look

  • Flowering from December to April
  • Fruiting afterwards

Where To Look

  • Woodland vegetation



Elliot, W. and Jones, D. (1982) Encyclopaedia of Australian Plants suitable for cultivation. Volume 2. Lothian Publishing Company Pty Ltd. Australia


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  1. What Else?

    Similar to Acacia melanoxylon. Most obvious difference is in the seeds. A. melanoxylon has a funicle around the seed, A. implexa does not.

  1. Did You Know?

    The juvenile leaves are bipinnate.

    The plant can resprout after fire.

    It spreads by root suckering and is therefore quite longlived.

    Often has bagmoths associated with it.

    Seeds are termed ‘hard seeded’ and they need to be scarified to germinate. This requires the seed coat to be chipped slightly to allow water inside . This occurs naturally during a fire or with a sharp instrument in a nursery situation.

    Bark was used in a tanning process.

    Bark and leaves were used by Indigenous people as a fish poison because it contains saponin.