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  1. 228 Photo by Rich Weatherill
  2. 228_0 Photo by Rich Weatherill
  3. 228_1 Photo by Rich Weatherill
  4. 228_2 Photo by Rich Weatherill

Slender Petalostylis

Petalostylis labicheoides


  • Large shrub with long, straight and very woody branches which are often slightly bluish-green.
  • Size: up to 3 m high.
  • Leaves: Bright green foliage with each leaf made of 10 to 30 leaflets.
  • Flowers: orange gold flowers with 5 slightly unequal petals.  Flowers are 1.5 to 2 cm across.

What to Observe

  • First fully open single flower
  • Full flowering (record all days)
  • End of flowering (when 95% of the flowers have faded)
  • Open seed pods (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.

When To Look

  • March to December

Where To Look

  • Throughout the Pilbara and Kimberly in Western Australia and central Australia including Queensland, South Australia, Northern Territory and New South Wales.

Slender Petalostylis Occurrence Map ALA



Napier J & van Leeuwen S 2008. Common Plants of the Pilbara. Department of Environment and Conservation. 

Woodley M et al. Wangalili Yindjibarndi and Ngarluma Plants. Juluwaru Aboriginal Corporation.

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  1. What Else?

    It is often mistaken for Senna but is easily distinguished by the red near circular mark at the base of the rear petal. It also grows larger than most Senna species.