Click on images to enlarge
infestation (Photo: Sheldon Navie)
habit in flower (Photo: Sheldon Navie)
basal rosette of large lower leaves (Photo: Sheldon Navie)
deeply-lobed leaf with spiny margins (Photo: Sheldon Navie)
close-up of winged stem and leaf bases (Photo: Sheldon Navie)
uppermost leaves and young flower-head with numerous spiny floral bracts (Photo: Sheldon Navie)
flower-head (Photo: Sheldon Navie)
close-up of flower-head (Photo: Sheldon Navie)
mature flower-heads (Photo: Sheldon Navie)
seeds topped with long hairs (Photo: Sheldon Navie)
close-up of seeds with hairs removed (Photo: Steve Hurst at USDA PLANTS Database)
close-up of seedling (Photo: Sheldon Navie)
young plant (Photo: Sheldon Navie)
Cirsium vulgare (Savi) Ten.
Carduus lanceolatus L.Carduus vulgaris Savi
Asteraceae (Queensland, New South Wales, the ACT, Victoria, Tasmania, Western Australia and the Northern Territory)Compositae (South Australia)
bank thistle, bird thistle, black thistle, blue thistle, boar thistle, bull thistle, bur thistle, button thistle, common bull thistle, common thistle, Fuller's thistle, green thistle, plume thistle, roadside thistle, Scotch thistle, spear thistle, swamp thistle
Native to Europe (i.e. Denmark, Finland, Ireland, Norway, Sweden, UK, Austria, Czechoslovakia, Germany, Hungary, the Netherlands, Poland, Switzerland, Belarus, Estonia, Latvia, Lithuania, western Russia, Moldova, Ukraine, Albania, Bulgaria, Greece, Italy, Romania, Yugoslavia, France, Portugal and Spain), northern Africa (i.e. Algeria, Morocco and Tunisia), western Asia (i.e. Afghanistan, Iran, Iraq, Turkey, Armenia, Azerbaijan, Georgia, Kazakhstan, Kyrgyzstan and Turkmenistan), Pakistan and China.
A very widely distributed species that is naturalised throughout the southern and eastern parts of Australia. It is very common in south-eastern Queensland, the southern and eastern parts of New South Wales, the ACT, Victoria and Tasmania. It is also common in the south-western parts of Western Australia and the south-eastern parts of South Australia. Scattered infestations are present in other parts of Queensland, New South Wales, Western Australia and South Australia, and it is also naturalised on Lord Howe Island.
Naturalised overseas in other parts of Africa and Asia, New Zealand, USA, Canada, South America, Hawaii and other Pacific islands.
Though this species is primarily a weed of agricultural areas (particularly pastures), it is also regarded as an environmental weed in parts of Tasmania, Victoria and New South Wales. It spreads from pastures, crops, waste areas and roadsides into disturbed native grasslands, open woodlands and conservation areas. During a recent survey, spear thistle (Cirsium vulgare) was listed as a priority environmental weed in three Natural Resource Management 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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