Click on images to enlarge
habit (Photo: Trevor James)
the reddish-coloured stems (Photo: Jackie Miles)
leaves with darker blotches (Photo: Trevor James)
slightly elongated flower clusters (Photo: Trevor James)
close-up of paler pink flowers (Photo: Trevor James)
close-up of seedling (Photo: Trevor James)
young plant (Photo: Jackies Miles)
Persicaria maculosa Gray
Polygonum persicaria L.
Jesus plant, lady's thumb, lady's-thumb smartweed, persicaria, red shank, redshank, spotted lady's thumb, spotted lady's-thumb, spotted ladysthumb
Native to northern and central Asia (i.e. Russia, Armenia, Azerbaijan, Georgia, Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan), the Indian Sub-continent (i.e. Nepal), and eastern Asia (i.e. China, Japan, Korea, Taiwan and Indonesia).
Widely naturalised in southern Australia (i.e. in some parts of eastern New South Wales, in Victoria, in Tasmania, in south-eastern South Australia and in the coastal districts of south-western Western Australia).
Redshank (Persicaria maculosa) is regarded as an environmental weed in Victoria and it is seen as a potential threat to one or more vegetation formations in this state. It also appears on some local environmental weed lists (e.g. in Knox City and Mornington Peninsula Shire) and has been recorded in conservation areas (e.g. Organ Pipes National Park and Yarra Bend Park) in Victoria.
This species is usually not treated as an environmental weed in other states, where it is mainly seen as a weed of crops, roadsides and disturbed sites. However, it has been recorded growing in disturbed natural vegetation in 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.
Copyright © 2016. All rights reserved. Identic Pty Ltd. Special edition of Environmental Weeds of Australia for Biosecurity Queensland.
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