Indicative distribution
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.
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click here to see geographic restrictions).
The information presented in this map is only indicative and may contain errors and omissions.
Scientific name: Chorizema parviflorum - endangered population
Gazetted date:
05 Oct 2001
Profile last updated:
21 Mar 2022
Description
Shrub to 50 cm high, with a stout rootstock. It has narrow leaves (1 to 4 cm long, 1 to 4 mm wide) with a rib down the middle of the leaf. The flowers are pea-like, yellow with a red centre, and are borne in loose clusters at the ends of branches.
Distribution
This endangered population has been recorded from between Austinmer and Albion Park in the local government areas of Wollongong and Shellharbour.
Habitat and ecology
- All known sites (excluding the site at Austinmer) occupy woodland or forest dominated by Forest Red Gum (Eucalyptus tereticornis) and/or Woollybutt (E. longifolia).
- At Austinmer, the species is recorded from a coastal headland.
- Flowering period is August to January, with seeds maturing from November.
- The species is difficult to locate when not in flower, as it is often tangled amongst (and partially concealed by) a grassy understorey.
- The response of the species to fire is reportedly variable. Some plants have been observed to reshoot following fire while others have been killed.
- A soil seedbank for the species exists although the longevity of this seedbank is not known.
Regional distribution and habitat
Click on a region below to view detailed distribution, habitat and vegetation information.
Threats
- Further loss and fragmentation of habitat, particularly as a consequence of clearing for agriculture and residential development.
- Habitat degradation as a result of weed invasion, grazing/trampling by livestock, track/powerline maintenance, and rubbish dumping.
- Inappropriate fire regimes including too frequent fire or total fire exclusion.
- Weeds overgrowing and outcompeting/shading the species (e.g. Lantana, African lovegrass, Asparagus fern, mother of millions)
- Damage to plants, recruitment, and increased weeds from slashing and clearing around powerline easements
- Alteration of hydrology from development.
- Damage from unauthorised track creation or maintenance.
Recovery strategies
A Saving Our Species conservation project is currently being developed for this species and will be available soon. For information on how you can contribute to this species' recovery, see the Activities to assist this species section below.
Activities to assist this species
- Determine and apply appropriate fire management practices.
- Consider off-site impacts in the assessment of nearby developments.
- Install fencing to exclude livestock and machinery.
- Protect areas of known and potential habitat from clearing and further fragmentation.
- Restore degraded habitat using bush regeneration techniques.
- Map known sites and conduct surveys of potential habitat to locate new sites.
Information sources
- Nature Conservation Council of NSW (1999) Towards an Illawarra Regional Vegetation Management Plan. (NCC, Sydney)
- NSW National Parks and Wildlife Service (2002) Native Vegetation of the Illawarra Escarpment and Coastal Plain. Wollongong Local Government Area Bioregional Assessment (Part I). (NSW NPWS, Hurstville)
- NSW Scientific Committee (2001) Chorizema parviflorum Benth. (a shrub) population, Wollongong and Shellharbour LGAs - Endangered population determination - final.
- Wiecek, B. (2002) Chorizema. P529 in Harden, G.J. (ed.) Flora of New South Wales. Volume 2, Revised Edition. (University of New South Wales Press, Sydney)
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