Declared or noxious weeds are those listed as 'Declared Plants' by any given state or territory government.
In many cases the plants listed could be regarded as common plants from urban landscapes, including African Tulip Tree (Spathodea campanulata) and Singapore Daisy (Sphagneticola trilobata Syn. Wedelia trilobata)
Click here for more information on Declared Plants in ACT and High Country
Click here for more information on Declared Plants in New South Wales
Click here for more information on Declared Plants in Northern Territory
Click here for more information on Declared Plants in Queensland
Click here for more information on Declared Plants in South Australia
Click here for more information on Declared Plants in Tasmania
Click here for more information on Declared Plants in Victoria
Click here for more information on Declared Plants in Western Australia
Weeds of National Significance (WONS)
'Weeds of National Significance' (WONS) is a list of 20 invasive plants that have been determined by the Federal government in consultation with State government agencies. They are considered to be of significant national importance. Whilst not every WONS invasive plant is declared in all states and territories it would be prudent to ensure that you are aware of the plants on the list. The plants are not normally common in urban landscape situations but some were once common garden plants such as Lantana (Lantana camara).
More information on Weeds of National Significance