Nature conservation

Threatened species

Sydney Freshwater Wetlands in the Sydney Basin Bioregion - 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: Sydney Freshwater Wetlands in the Sydney Basin Bioregion
Conservation status in NSW: Endangered Ecological Community
Commonwealth status: Not listed
Gazetted date: 22 Dec 2000
Profile last updated: 04 Mar 2024


A complex of vegetation types largely restricted to freshwater swamps in coastal areas. These also vary considerably due to fluctuating water levels and seasonal conditions. Characteristic species include sedges and aquatic plants such as Baumea species, Eleocharis sphacelata, Gahnia species, Ludwigia peploides subsp. montevidensis and Persicaria species. Areas of open water may occur where drainage conditions have been altered and there may also be patches of emergent trees and shrubs. Characteristic species are listed in the final determination - see links box.


Occurs on sand dunes and low-nutrient sandplains along coastal areas in the Sydney Basin bioregion. It is known from the Lake Macquarie, Wyong, Gosford, Pittwater, Warringah, Woollahra, Waverley, Botany, Rockdale, Randwick, Sutherland and Wollongong local government areas, but is likely to occur elsewhere within the bioregion. Has been extensively cleared and filled and remnants are often small and disturbed.

Habitat and ecology

  • Largely restricted to freshwater swamps in swales and depressions on sand dunes and low nutrient sandplains such as those of the Warriewood and Tuggerah soil landscapes. Swampy areas on alluvium with a saline influence do not fall within this community.

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 BasinHunter Predicted None
Sydney BasinIllawarra Known None
Sydney BasinJervis Known None
Sydney BasinPittwater Known None
Sydney BasinSydney Cataract Known None
Sydney BasinWyong Known None