An initiative of Earthwatch Institute

  1. Dianella_revoluta-fruit-swan_bay_environment_association dianella_revoluta-fruit-Swan Bay Environment Association

Black-anther Flax-lily

Dianella revoluta


  • Long, feathery shrub with flowers sticking up above the leaves. Long green pointy leaves with vibrant blue to purple inflorescences (flower clusters).  
  • Size: Up to 1.5m high
  • Leaves: Long, feathery, smooth green leaves. 15-85cm long with 4-15mm width. Pointy ends and long and stiff throughout. Can sometimes appear red towards base but this is rare.
  • Flowers: Flowers stick up above the leaves, consisting of 6 purple petals (7-12mm length) and 6 stamens (pollen-bearing part of the flower) in a ring. These are long, thick and have brown to black tips with yellow stems.
  • Fruits/seeds: Fruit is blue to purple and 4-10mm in diameter with 3-4 shiny black seeds that persist months after flowering. 

What to Observe

  • First fully open single flower 
  • Full flowering (record all days)
  • End of flowering (when 95% of the flowers have faded)
  • No flowering
  • Fruits/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 occurs from Spring to Summer 
  • Fruit occurs many months after flowering

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

Where To Look

Widespread but common in sclerophyll forest and woodland. Found in WA, SA, VIC, ACT, NSW, QLD, TAS.

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


The map below displays the accumulated observations of these species as reported by ClimateWatch observers, together with the layer showing how the range of the species might change between now and 2085, with orange areas indicating where the species might disappear, and green areas where the species range might expand.


Australian National Botanic Gardens, Plantnet, Royal Botanic Gardens Victoria


  1. Search Species

  1. What Else?

    Only D. revoluta var. revoluta is currently recognised for Victoria. Nodding Blue Lily Stypandra glauca has similar flowers, later in season; leaves form massive clump (Fraser & McJannett, 1993:71)

  1. Did You Know?

    Also known as Blueberry lily