NSW Department of Planning, Industry and Environment

Nature conservation

Threatened species

Winged Peppercress - Cobar Peneplain: Distribution and vegetation associations

Scientific name: Lepidium monoplocoides
Conservation status in NSW: Endangered
Commonwealth status: Endangered
Last updated: 03 Jan 2019

Distribution of the species within this region

The Winged Peppercress is known or predicted to occur in the following sub-regions of the Cobar Peneplain Interim Biogeographic Regionalisation of Australia.

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IBRA sub-region  Known or predictedGeographic restrictions within region
Barnato Downs Predicted None
Boorindal Plains Predicted None
Canbelego Downs Known None
Lachlan Plains Known None
Nymagee Known None

Vegetation formations, classes and types

In this region the Winged Peppercress - Cobar Peneplain is known to be associated with the following vegetation formations and classes. Click on a name to get background information about it.

  • Arid shrublands (Chenopod sub-formation)
    • Aeolian Chenopod Shrublands
      • Black Bluebush low open shrubland of the alluvial plains and sandplains of the arid and semi-arid zones
    • Riverine Chenopod Shrublands
      • Australian Boxthorn open shrubland in the semi-arid or arid climate zones
      • Black Roly Poly low open shrubland of the Riverina Bioregion and Murray Darling Depression Bioregion
      • Bladder Saltbush chenopod shrubland on alluvial plains mainly in the Darling Riverine Plain Bioregion
      • Copperburr low open shrubland on loam - clay flats and playas, western Brigalow Belt South Bioregion and northern Darling Riverine Plains Bioregion
      • Dillon Bush (Nitre Bush) shrubland of the semi-arid and arid zones
      • Old Man Saltbush shrubland mainly of the semi-arid (warm) climate zone (south western NSW)
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  • Freshwater wetlands
    • Inland Floodplain Shrublands
      • Budda Pea - Channel Millet ephemeral reedland wetland on floodplains in north-western NSW
      • Canegrass swamp tall grassland wetland of drainage depressions, lakes and pans of the inland plains
      • Lignum shrubland wetland on regularly flooded alluvial depressions in the Brigalow Belt South Bioregion and Darling Riverine Plains Bioregion
      • Nitre Goosefoot shrubland wetland on clays of the inland floodplains
    • Inland Floodplain Swamps
      • Swamp grassland wetland of the Riverine Plain
  • Grasslands
    • Riverine Plain Grasslands
      • Curly Windmill Grass - speargrass - wallaby grass grassland on alluvial clay and loam on the Hay Plain, Riverina Bioregion
      • Plains Grass grassland on alluvial mainly clay soils in the Riverina Bioregion and NSW South Western Slopes Bioregion
      • Speargrass natural grassland of the sandplains of the Murray Darling Bioregion
    • Semi-arid Floodplain Grasslands
      • Mitchell Grass grassland - chenopod low open shrubland on floodplains in the semi-arid (hot) and arid zones
      • Native Millet - Cup Grass grassland of the Darling Riverine Plains Bioregion
      • Queensland Bluegrass +/- Mitchell Grass grassland on cracking clay floodplains and alluvial plains mainly the northern-eastern Darling Riverine Plains Bioregion
      • Rats Tail Couch sod grassland wetland of inland floodplains
  • Grassy woodlands
    • Floodplain Transition Woodlands
      • Carbeen +/- Coolabah grassy woodland on floodplain clay loam soil on north-western NSW floodplains, mainly Darling Riverine Plain Bioregion
      • Mixed box eucalypt woodland on low sandy-loam rises on alluvial plains in central western NSW
      • Mixed Eucalypt woodlands of floodplains in the southern-eastern Cobar Peneplain Bioregion
      • Poplar Box - Belah woodland on clay-loam soils on alluvial plains of north-central NSW
      • Poplar Box grassy woodland on alluvial clay-loam soils mainly in the temperate (hot summer) climate zone of central NSW (wheatbelt).
      • Riverine Western Grey Box grassy woodland of the semi-arid (warm) climate zone
      • Western Grey Box - White Cypress Pine tall woodland on loam soil on alluvial plains of NSW South Western Slopes Bioregion and Riverina Bioregion
      • Yellow Box - River Red Gum tall grassy riverine woodland of NSW South Western Slopes Bioregion and Riverina Bioregion
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  • Semi-arid woodlands (grassy sub-formation)
    • Inland Floodplain Woodlands
      • Black Box - Lignum woodland wetland of the inner floodplains in the semi-arid (warm) climate zone (mainly Riverina Bioregion and Murray Darling Depression Bioregion)
      • 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
      • Black Box grassy open woodland wetland of rarely flooded depressions in south western NSW (mainly Riverina Bioregion and Murray Darling Depression Bioregion)
      • 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
      • Black Box woodland wetland on NSW central and northern floodplains including the Darling Riverine Plains Bioregion and Brigalow Belt South Bioregion.
      • Coolabah - River Coobah - Lignum woodland wetland of frequently flooded floodplains mainly in the Darling Riverine Plains Bioregion
      • Coolabah open woodland wetland with chenopod/grassy ground cover on grey and brown clay floodplains
      • Poplar Box - Coolabah floodplain woodland on light clay soil mainly in the Darling Riverine Plains Bioregion
      • Poplar Box grassy low woodland of drainage lines and depressions of the semi-arid (hot) and arid zone climate zones
    • Riverine Plain Woodlands
      • Weeping Myall open woodland of the Riverina Bioregion and NSW South Western Slopes Bioregion