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  1. Acacia_stenophylla-anne_reeves-flickr Acacia_stenophylla-Anne_Reeves-Flickr
  2. _c__gwen_and_rodger_elliot_-_acacia_stenophylla_ned_s_cnr_p3709 Gwen and Rodger Elliot - Acacia stenophylla Ned's Cnr P3709
  3. _c__loraine_jansen_-_acacia_stenophylla_-4flower2__lj__swanreach_4-02-11 Loraine Jansen - Acacia stenophylla -4flower2 (LJ) SwanReach 4-02-11
  4. A_stenophylla_seed_pods_daves_garden A. stenophylla seed pods_Daves Garden

River Cooba

Acacia Stenophylla


Erect shrub or tree that grows up to 20m high. Usually has a single trunk 15-20cm in diameter at breast height, with pendulous branches. Bark of main trunk is grey and longitudinally fissured, while other branches have smooth, pale green bark.

Phyllodes (flattened leaf stems) are long (15-40cm) and thin (2-7mm), straight to weakly curved, dark green and pointed.Veins numerous, closely parallel, narrower than intervein spaces.

Flowers form groups of 25-40, forming inflorescences (flower clusters) cream in colour.

Seed pods moniliform (jointed or constricted at regular intervals so as to resemble a string of beads); become woody as they mature. They contain 6-12 viable seeds

What to Observe

  • First fully open single flower (each ‘flower ball’ is actually a cluster of flowers!)
  • Full flowering, when over 50% of plant is in flower (record all days)
  • End of flowering (when 95% of the flowers have faded)
  • No flowering
  • Seed pods (record all days)

ClimateWatch Science Advisor

Plants are expected to start shooting and flowering earlier as a result of climate change impacting temperature and rainfall. They may also start appearing in new areas, as climate change enables them to live in environments that were previously unsuitable for them. Help scientists answer the question: "How are our animals, plants and ecosystems responding to climate change?"

When To Look

Generally flowers March-August, but can flower throughout the year.

Seed pods known to mature in September-December depending on where it is found.

Note: ClimateWatch is looking for any changes in the timing of these events so remember to keep a lookout all year!

Where To Look

Often found near water sources in arid inland areas across Australia, from the Kimberley region of WA through the NT to QLD, and south into SA, VIC and NSW.

Usually grows in eucalypt woodland or forest close to rivers.

Note: ClimateWatch is looking for any changes outside of their known ranges so remember to keep a lookout beyond these regions too!




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  1. Did You Know?

    Other common names include the Eumong and Shoestring Acacia