Allocasuarina glareicola - 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: Allocasuarina glareicola

Conservation status in NSW: Endangered

Commonwealth status: Endangered

Profile last updated: 14 Oct 2024

Description

An erect, often depauperate she-oak shrub 1-2 m high, with 20 cm branchlets. Bark is smooth, branchlets ascending. Cones are 10 - 13 mm by 7 - 8 mm, on a 4 - 7 mm stem.

Distribution

Primarily restricted to the Richmond (NW Cumberland Plain) district, but with an outlier population found at Voyager Point, Liverpool.

Habitat and ecology

Grows in Castlereagh woodland on lateritic soil. Found in open woodland with Eucalyptus parramattensis, Eucalyptus fibrosa, Angophora bakeri, Eucalyptus sclerophylla and Melaleuca decora. Common associated understorey species include Melaleuca nodosa, Hakea dactyloides, Hakea sericea, Dillwynia tenuifolia, Micromyrtus minutiflora, Acacia elongata, Acacia brownei, Themeda australis and Xanthorrhoea minor.
Not killed outright by fire but resprouts from the rootstock.
Spreads by vegetative means, such that clumps of up to 100s of stems may be a single individual.
The time taken for the plants to flower and set seed is not known, but only those plants growing in areas unburnt for some time produced substantial numbers of fruit.

Regional distribution and habitat

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

Sydney Basin

Threats

Current or potential future land management practices do not support conservation.
Habitat degradation through rubbish dumping and unrestricted access creating tracks.
Too frequent fire may prevent fruit production and seed set.
Population is threatened with invasion and competition by weeds including African lovegrass, Whisky grass, Pennisetum clandestinum, Ricinus communis and Asparagus fern.
Trail bikes and 4WD activity leading to habitat degradation and direct damage to the species
Habitat loss due to clearing for development.
Habitat loss due to clearing for mining.
Sites typically have few individuals.

Recovery strategies

Priority actions are the specific, practical things that must be done to recover a threatened species, population or ecological community. The Office of Environment and Heritage has identified 24 priority actions to help recover the Allocasuarina glareicola in New South Wales.

Activities to assist this species

Avoid hazard reduction fires in populations where seed set has not occurred. Recommended fire intervals for this species are between 7-25 years.
Manage sites to prevent habitat degradation.
Protect from further clearing.

Information sources

Benson, D. and McDougall, L. (1995) Ecology of Sydney plant species. Part 3: Dicotyledon families Cabombaceae to Eupomatiaceae. Cunninghamia 4(2): 143-431
Fairley, A. (2004) Seldom seen: rare plants of greater Sydney. (Reed New Holland, Sydney)
Matthes, M., Robertson, G. and Smith, M (1996) Conservation research statement and species recovery plan for Allocasuarina glareicola. NSW NPWS for the Australian Nature Conservation Agency.
Wilson, K.L. and Johnson, L.A.S. (2000) Allocasuarina. Pp 510-517 in Harden, G.J. (ed.) Flora of New South Wales. Volume 1. Revised Edition (New South Wales University Press, Sydney)

IBRA Bioregion	IBRA Subregion	Known or predicted	Geographic restrictions region

Sydney Basin	Cumberland	Known	None
Sydney Basin	Sydney Cataract	Known	None

Images

Flowers, female, <em>Allocasuarina glareicola</em>

Flowers, female, Allocasuarina glareicola Image 1 of 4.
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