Nature conservation

Threatened species

Round-leafed Wilsonia - profile

Indicative distribution


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Key:
known
predicted
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: Wilsonia rotundifolia
Conservation status in NSW: Endangered
Commonwealth status: Not listed
Gazetted date: 15 Sep 2000
Profile last updated: 17 Aug 2018

Description

Round-leafed Wilsonia is a prostrate, perennial plant with succulent leaves. Its leaves are rounded and shiny, to 7 mm long and 3 mm wide, and more or less stalkless. The leaves are arranged in neat rows along the spreading stems. When young the leaves are hairy. The five-lobed 5 mm long, white, cream or yellow, tubular flowers occur singly in the angle between the leaf and the stem (axil). The fruit is an oval capsule containing one black seed.

Distribution

Round-leafed Wilsonia is known from several sites in the Jervis Bay area, Royal National Park, near Deniliquin and on the lakebeds of Lake George and Lake Bathurst when these are exposed during droughts. The Lake George and Lake Bathurst populations appear to be locally extensive. Also found Western Australia, South Australia and Victoria.

Habitat and ecology

  • Grows in mud in coastal saltmarsh and inland saline or brackish lake beds.
  • In undisturbed habitat, it can be a good coloniser as the creeping stems root from the nodes.
  • Flowers appear mainly in spring and summer.
  • May be a clonal species so that what appear to be large populations at some sites may actually be composed of only limited numbers of genetically distinct individuals which are the result of vegetative (asexual) reproduction.

Regional distribution and habitat

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


Threats

Recovery strategies

Activities to assist this species

Information sources

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region
Other StateJervis Bay Territory Predicted Below 10 m altitude
Other StateSA Known None
Other StateVIC Known None
RiverinaMurray Fans Predicted None
South East CornerBateman Known Below 10 m altitude
South East CornerSouth East Coastal Ranges Predicted Below 10 m altitude
South Eastern HighlandsMonaro Known None
Sydney BasinIllawarra Predicted Below 10 m altitude
Sydney BasinJervis Known Below 10 m altitude
Sydney BasinSydney Cataract Predicted None