Click on images to enlarge
infestation (Photo: Sheldon Navie)
habit in fruit (Photo: Sheldon Navie)
older leaves (Photo: Sheldon Navie)
close-up of stem and leaves with slightly-toothed margins (Photo: Sheldon Navie)
close-up of roughly hairy leaf undersides (Photo: Sheldon Navie)
large branched cluster of small yellow flower-heads (Photo: Sheldon Navie)
close-up of flower-heads (Photo: Sheldon Navie)
immature fruit (Photo: Sheldon Navie)
large branched cluster of mature fruit (Photo: Sheldon Navie)
mature fruit with fluffy seeds (Photo: Sheldon Navie)
close-up of fluffy seeds (Photo: Sheldon Navie)
Solidago altissima L. subsp. altissima
Solidago canadensis L.
Solidago lepida DC. var. elongata (Nutt.) Fernald (misapplied)
American goldenrod, Canada goldenrod, Canadian goldenrod, common golden-rod, common goldenrod, golden rod, goldenrod, tall goldenrod
Native to eastern Canada and eastern USA.
Widely naturalised in southern and eastern Australia (i.e. in the coastal districts of Queensland, in some parts of central and northern New South Wales, in south-eastern South Australia, and in the coastal districts of south-western, north-western and southern Western Australia).
Also naturalised on Lord Howe Island and sparingly naturalised in Victoria.
This species is not not currently declared under state legislation in Queensland. However, it has been declared as a Class C Noxious Weed by the Brisbane City Council, because it is toxic to animals or humans. The control objective for Class C Noxious Weeds is containment and reduction, as eradication is not a viable option (i.e. infestations are to be contained and further spread prevented, while the overall size of infestations is to be reduced).
As this species is not a state declared plant, its control is usually not required by law. However, it is an environmental weed and should be managed in sensitive bushland and conservation areas.
Canadian goldenrod (Solidago canadensis var. scabra) is regarded as an environmental weed in Queensland and New South Wales, and as a minor or potential environmental weed in Victoria.
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.
The mobile application of Environmental Weeds of Australia is available from the Google Play Store and Apple iTunes.