Nature conservation

Threatened species

Austral Pillwort - Riverina: Distribution and vegetation associations

Conservation status in NSW: Endangered
Commonwealth status: Not listed
Last updated: 14 Oct 2024

Distribution of the species within this region

The Austral Pillwort is known or predicted to occur in the following sub-regions of the Riverina Interim Biogeographic Regionalisation of Australia Region.

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IBRA sub-region  Known or predictedGeographic restrictions within region
Murray Fans Predicted None
Murrumbidgee Known East of Deniliquin

Vegetation formations, classes and types

In this region the Austral Pillwort - Riverina is known to be associated with the following vegetation formations and classes. Click on a name to get background information about it.

  • Forested wetlands
    • Inland Riverine Forests
      • 9 River Red Gum - wallaby grass tall woodland wetland on the outer River Red Gum zone mainly in the Riverina Bioregion
      • 249 River Red Gum swampy woodland wetland on cowals (lakes) and associated flood channels in central NSW
      • 2 River Red Gum-sedge dominated very tall open forest in frequently flooded forest wetland along major rivers and floodplains in south-western NSW
  • Freshwater wetlands
    • Inland Floodplain Swamps
      • 360 Gilgai wetland mosaic in the southern NSW South Western Slopes Bioregion
      • 238 Permanent and semi-permanent freshwater lakes wetland of the inland slopes and plains
      • 336 Rush - Sedge - Common Reed mainly lentic channel wetland of the Upper Murray and mid-Murrumbidgee River floodplains in the NSW South Western Slopes Bioregion
      • 53 Shallow freshwater wetland sedgeland in depressions on floodplains on inland alluivial plains and floodplains
      • 12 Shallow marsh wetland of regularly flooded depressions on floodplains mainly in the semi-arid (warm) climatic zone (mainly Riverina Bioregion and Murray Darling Depression Bioregion)
      • 47 Swamp grassland wetland of the Riverine Plain
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  • Grasslands
    • Riverine Plain Grasslands
      • 46 Curly Windmill Grass - speargrass - wallaby grass grassland on alluvial clay and loam on the Hay Plain, Riverina Bioregion
      • 44 Forb-rich Speargrass - Windmill Grass - White Top grassland of the Riverina Bioregion
      • 45 Plains Grass grassland on alluvial mainly clay soils in the Riverina Bioregion and NSW South Western Slopes Bioregion
  • Grassy woodlands
    • Floodplain Transition Woodlands
      • 237 Riverine Western Grey Box grassy woodland of the semi-arid (warm) climate zone
      • 74 Yellow Box - River Red Gum tall grassy riverine woodland of NSW South Western Slopes Bioregion and Riverina Bioregion
  • Semi-arid woodlands (grassy sub-formation)
    • Inland Floodplain Woodlands
      • 13 Black Box - Lignum woodland wetland of the inner floodplains in the semi-arid (warm) climate zone (mainly Riverina Bioregion and Murray Darling Depression Bioregion)
      • 630 Black Box - Silver Saltbush chenopod open woodland on terrace rises on alluvial plains in the lower Darling River and lower Murray River region of the Murray Darling Depression Bioregion
      • 16 Black Box grassy open woodland wetland of rarely flooded depressions in south western NSW (mainly Riverina Bioregion and Murray Darling Depression Bioregion)
      • 15 Black Box open woodland wetland with chenopod understorey mainly on the outer floodplains in south-western NSW (mainly Riverina Bioregion and Murray Darling Depression Bioregion)
    • North-west Floodplain Woodlands
      • 55 Belah woodland on alluvial plains and low rises in the central NSW wheatbelt to Pilliga and Liverpool Plains regions.
    • Riverine Plain Woodlands
      • 26 Weeping Myall open woodland of the Riverina Bioregion and NSW South Western Slopes Bioregion