Nature conservation

Threatened species

Red Darling Pea - Riverina: Distribution and vegetation associations

Scientific name: Swainsona plagiotropis
Conservation status in NSW: Vulnerable
Commonwealth status: Vulnerable
Last updated: 02 Mar 2022

Distribution of the species within this region

The Red Darling Pea 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
Lachlan Known None
Murray Fans Predicted Hay Plain
Murrumbidgee Known Hay Plain

Vegetation formations, classes and types

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

  • Grasslands
    • Riverine Plain Grasslands
      • 46 Curly Windmill Grass - speargrass - wallaby grass grassland on alluvial clay and loam on the Hay Plain, Riverina Bioregion
      • 165 Derived corkscrew grass grassland/forbland on sandplains and plains in the semi-arid (warm) climate zone
      • 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
    • Semi-arid Floodplain Grasslands
      • 43 Mitchell Grass grassland - chenopod low open shrubland on floodplains in the semi-arid (hot) and arid zones
      • 214 Native Millet - Cup Grass grassland of the Darling Riverine Plains Bioregion
      • 49 Partly derived Windmill Grass - copperburr alluvial plains shrubby grassland of the Darling Riverine Plains Bioregion and Brigalow Belt South Bioregion