Click on images to enlarge
habit (Photo: Sheldon Navie)
rough bark on main trunk (Photo: Sheldon Navie)
drooping branches (Photo: Sheldon Navie)
close-up of branchlets with tiny scale-like leaves (Photo: Sheldon Navie)
branches with rusty-coloured male flower clusters (Photo: Sheldon Navie)
close-up of female flowers (Photo: Sheldon Navie)
mature fruit (Photo: Sheldon Navie)
close-up of winged seeds (Photo: Steve Hurst at USDA PLANTS Database)
Casuarina glauca Sieber ex Spreng.
Casuarina obtusa Miq.
Brazilian oak, cadigal, gray sheoak, grey she-oak, guman, long-leaf ironwood, longleaf ironwood, saltmarsh ironwood, scaly-bark beefwood, swamp she oak, swamp she-oak, swamp sheoak, swamp oak
Native to large parts of eastern Australia (i.e. eastern New South Wales and central and south-eastern Queensland).
Naturalised in south-western Western Australia, south-eastern South Australia, southern Victoria and the Northern Territory. Also naturalised on Lord Howe Island and on Norfolk Island.
Naturalised overseas in south-eastern USA (i.e. Florida), the Caribbean, La Réunion, Hawaii and New Zealand.
Swamp she-oak (Casuarina glauca) has become naturalised beyond its native range, particularly on river banks in southern Australia. It is regarded as an environmental weed in Western Australia and South Australia, and is particularly invasive in south-eastern South Australia (e.g. it is a serious environmental weed in the Mount Lofty Ranges).
River she-oak (Casuarina cunninghamiana) and coastal she-oak (Casuarina equisetifolia) have also recently become naturalised beyond their native ranges in some parts of Australia, and are regarded as potential or minor environmental weeds in some regions.
Fact sheets are available from Department of Employment, Economic Development and Innovation (DEEDI) service centres and our Customer Service Centre (telephone 13 25 23). Check our website at www.biosecurity.qld.gov.au to ensure you have the latest version of this fact sheet. The control methods referred to in this fact sheet should be used in accordance with the restrictions (federal and state legislation, and local government laws) directly or indirectly related to each control method. These restrictions may prevent the use of one or more of the methods referred to, depending on individual circumstances. While every care is taken to ensure the accuracy of this information, DEEDI does not invite reliance upon it, nor accept responsibility for any loss or damage caused by actions based on it.
Copyright © 2016. All rights reserved. Identic Pty Ltd. Special edition of Environmental Weeds of Australia for Biosecurity Queensland.
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