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infestation (Photo: Sheldon Navie)
habit (Photo: Sheldon Navie)
leaves and blue flowers (Photo: Sheldon Navie)
leaf with toothed margins (Photo: Sheldon Navie)
variation in flower colour (Photo: Sheldon Navie)
close-up of flowers, showing the petal-coloured tips on the outer stamens (Photo: Sheldon Navie)
close-up of seeds (Photo: Jose Hernandez at USDA PLANTS Database)
the very similar native giant waterlily, Nymphaea gigantea (Photo: Sheldon Navie)
a giant waterlily (Nymphaea gigantea) flower, with entirely yellow stamens (Photo: Sheldon Navie)
Nymphaea caerulea Savigny
Nymphaea caerulea Savigny subsp. zanzibarensis (Casp.) S.W.L. Jacobs (misapplied)Nymphaea capensis Thunb.Nymphaea capensis Thunb. var. zanzibarensis (Casp.) Conard (misapplied)Nymphaea coerulea F. Muell., orth. var.Nymphaea nouchali Burm. f. var. zanzibarensis (Casp.) Verdc. (misapplied)
blue Egyptian lotus, blue lotus, blue water lily, blue waterlily, Cape blue water lily, Cape blue water-lily, Cape blue waterlily, Cape water lily, Cape waterlily, Egyptian lotus, lotus lily, royal purple waterlily, water lily
Native to north-eastern, eastern and southern Africa (i.e. Egypt, Eritrea, northern Ethiopia, Somalia, Sudan, Kenya, Tanzania, Uganda, Zaire, Angola, Malawi, Mozambique, Zambia, Zimbabwe, Botswana, Namibia and South Africa) and some parts of south-western Asia.
Widely naturalised in the coastal districts of eastern Australia (i.e. in south-eastern and central Queensland and in northern and central New South Wales).
Also naturalised overseas in Argentina, south-eastern Brazil and on several Pacific islands (i.e. the Cook Islands, Fiji, French Polynesia and Hawaii).
Cape blue waterlily (Nymphaea caerulea) is regarded as an environmental weed in Queensland and New South Wales. This widely grown aquatic plant has escaped cultivation and become a weed of freshwater habitats (i.e. dams, ponds, lakes, lagoons, wetlands, and slow-moving waterways), where it displaces similar native species.
Note: The name Nymphaea caerulea subsp. zanzibarensis has been applied to Australian naturalised populations of this species, however it is now believed that this sub-species is only present in cultivation in Australia.
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.
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