Click on images to enlarge
infestation (Photo: Chris Gardiner)
spreading habit (Photo: Sheldon Navie)
finely hairy woody stems (Photo: Sheldon Navie)
stems, leaves and flower cluster (Photo: Sheldon Navie)
elongated leaves with three leaflets and immature fruit (Photo: Sheldon Navie)
close-up of leaves and immature fruit, showing the long bristly hairs on many parts of the plant (Photo: Sheldon Navie)
mature fruit with very long and curled beak (Photo: Sheldon Navie)
close-up of mature fruit with a very long curled beak (Photo: Tracey Slotta at USDA PLANTS Database)
Stylosanthes humilis Kunth
Fabaceae (Queensland, the ACT, Victoria, Tasmania, and the Northern Territory)Fabaceae: sub-family Faboideae (New South Wales)Leguminosae (South Australia)Papilionaceae (Western Australia)
annual stylo, Townsville lucerne, Townsville stylo
Native to south-western USA (i.e. Arizona), Mexico, Central America (i.e. Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua and Panama), the Caribbean (i.e. Cuba) and tropical South America (i.e. Venezuela, Brazil, Bolivia and Colombia).
Widely naturalised in northern Australia (i.e. in northern and north-western Western Australia, in the northern and central parts of the Northern Territory, in many parts of Queensland and in the coastal districts of northern New South Wales). Also naturalised on Christmas Island.
Naturalised overseas in south-eastern Asia and on some Pacific islands (i.e. Fiji and New Caledonia).
Townsville stylo (Stylosanthes humilis) is regarded as an environmental weed in northern Queensland, the Northern Territory and northern Western 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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