Nature conservation

Threatened species

Castlereagh Swamp Woodland Community - profile

Indicative distribution

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The areas shown in pink and/purple are the sub-regions where the species or community is known or predicted to occur. They may not occur thoughout the sub-region but may be restricted to certain areas. ( click here to see geographic restrictions). The information presented in this map is only indicative and may contain errors and omissions.
Scientific name: Castlereagh Swamp Woodland Community
Conservation status in NSW: Endangered Ecological Community
Commonwealth status: Not listed
Gazetted date: 24 Dec 1999
Profile last updated: 06 Jul 2019


A low woodland, often having dense stands of Paperbark trees Melaleuca decora along with other canopy trees, such as Parramatta Red Gum (Eucalyptus parramattensis subsp. parramattensis). The shrub layer is not well developed and is mostly made up of young paperbark trees. The ground layer has a diversity of plants that tolerate waterlogged conditions, such as Swamp Pennywort (Centella asiatica), Common Rush (Juncus usitatus) and Branched Goodenia (Goodenia paniculata). Contains many more species and other references should be consulted to identify these.


Occurs in western Sydney in the Castlereagh and Holsworthy areas, on deposits from ancient river systems along today's intermittent creeklines, often in poorly drained depressions. There is now only 616 hectares remaining intact, which mainly occurs in the Hawkesbury, Liverpool and Penrith local government areas. Good examples can be seen at Windsor Downs Nature Reserve and Kemps Creek Nature Reserve.

Habitat and ecology

  • Highly adapted to seasonal fluctuations of wet and dry, with the heavy clay soils cracking during extended dry periods
  • Intergrades into Ironbark and Scribbly Gum woodland and is subject to periodic fires. Most species are able to quickly regenerate after fires from lignotubers and buds beneath the bark

Regional distribution and habitat

Click on a region below to view detailed distribution, habitat and vegetation information.


Recovery strategies

Activities to assist this species

Information sources

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region
Sydney BasinCumberland Known None
Sydney BasinSydney Cataract Known northern and western edge of sub-region, near Cumberland Plain