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: Acacia petraea
Profile last updated:
01 Nov 2022
Description
Erect or spreading tree, 3-10 m high, with deeply fissured, brownish grey bark. "Leaves" straight or slightly curved, linear with a curved tip, 13-26 cm long, 2-6 mm wide. Flower-heads cylindrical, golden yellow, on hairy stalks 11-20 mm long. Pods straight, 7-12 cm long, 3-5 mm wide, margins thickened, seeds longitudinally arranged.
Distribution
Recorded in NSW from the Hungerford and Bourke-Louth districts. Also occurs in several localities in south-western Queensland, confined to the Grey Range and its outliers in the Gregory South and Warrego districts.
Habitat and ecology
- Lancewood grows in heath to woodland vegetation on rocky ridge tops, jump-ups and scarps with shallow to skeletal, gravely sandy soils.
- Associated species near Hungerford include Eremophila scoparia, E. latrobei and Dodonaea petiolaris.
- Near Hungerford, the species has been found only on ridge tops along rocky outcrops, growing as a common tree with Eremophila scoparia, Eremophila latrobei and Dodonaea petiolaris.
- Flowers in winter and spring.
- Plant abundance in populations has been recorded as common and as a very sparse roadside scrub. In Queensland, Acacia petraea grows as a tall shrubland.
Regional distribution and habitat
Click on a region below to view detailed distribution, habitat and vegetation information.
Threats
- Damage to plants from roadworks and maintenance.
- Climate change associated drought impacts (e.g., extreme heat and dryness) increasing the vulnerability of plants to desiccation reducing recruitment.
- Impacts from inappropriate fire regimes including inappropriate fire frequency, intensity, and scale.
- Lack of knowledge about the distribution and abundance of this species
- Feral animals (e.g., goats, pigs, camels, horses) causing disturbance including trampling, grazing (on seedling limiting recruitment) or physical disturbance (rocky habitat vulnerable to degradation and erosion).
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
- Investigate the origin of populations and re-assess the conservation status of the species in NSW.
- Protection of roadside populations from roadworks.
- Initiate monitoring programs at sites that have goat-proof exclosures around populations.
- Protect extant populations from clearing and fragmentation.
Information sources
- Bowen, P.F. and Pressey, R.L. (1993) Localities and habitats of plants with restricted distributions in the Western Division of New South Wales. Occasional Paper No. 17. (NSW NPWS, Sydney)
- Hall, N. and Johnson, L.A.S. (1993) The names of acacias of New South Wales - with a guide to pronunciation of botanical names. (Royal Botanic Gardens, Sydney)
- Jessop, J.P. (1981) Flora of Central Australia. (Australian Systematic Botany Society, Sydney)
- Kodela, P.G. and Harden, G.J. (2002) Acacia. Pp 381-476 in Harden, G.J. (ed.) Flora of New South Wales. Volume 2. Revised Edition (New South Wales University Press, Sydney)
- Maslin, B.R. and Pedley, L. (1982) The distribution of Acacia (Leguminosae: Mimosoideae) in Australia. Part 1. Species distribution maps. Western Australian Herbarium Research Notes 6: 1-128.
- Pedley, L. (1974) Notes on Acacia chiefly from Queensland, IV. Contributions from the Queensland Herbarium 15: 14
- Porteners, M. and Robertson, G. (2003) Threatened Plants in Western New South Wales: Information Review. (NSW NPWS, Hurstville)
- Pressey, R.L., Cohn, J.S. and Porter, J.L. (1990) Vascular plants with restricted distributions in the Western Division of New South Wales. Proceedings of the Linnean Society of New South Wales 112: 213-227
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