ACT Nasty Weeds!

Overview

The following weed species pose significant threat to ACT's plants, animals and fungi. They are capable of invading and degrading native ecosystems. They are yet to become well established either in ACT as a whole or in particular parts of the Territory. Early detection of new outbreaks will help us eradicate these plants from the ACT or key habitats.

4 species

Eragrostis curvula (African Lovegrass)

Eragrostis curvula Mature seed-head
Eragrostis curvula Dense infestation
Eragrostis curvula Close up of single plant
Eragrostis curvula
Eragrostis curvula
Eragrostis curvula

African Lovegrass is so well established in South Canberra and along the Murrumbidgee, that control in these areas is within a triage mode of largely just looking after areas of high conservation value. It is spread by mowing, wind animalsand water. Within Canberra Nature Park and more widely in the... Continue reading

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Gleditsia triacanthos (Honey Locust, Thorny Locust)

Gleditsia triacanthos Thorns and rouded leaflets on bipinnate leaf
Gleditsia triacanthos The dangerous thorn
Gleditsia triacanthos Pods and yellowing deciduos leaves
Gleditsia triacanthos
Gleditsia triacanthos
Gleditsia triacanthos

With sharp woody thorns the size of daggers and this is very nasty weed. Capable of forming dense thickets along waterways, it is a weedy nightmare that we definately don't want. A few plants have been removed from the LowerMolonglo Nature Reserve, while some not so bright landscape architects still... Continue reading

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Hyparrhenia hirta (Coolatai grass)

Hyparrhenia hirta Close up of Seed-head branches
Hyparrhenia hirta Close up of flower spikelets
Hyparrhenia hirta Dense infestation
Hyparrhenia hirta
Hyparrhenia hirta
Hyparrhenia hirta

Coolatai grass was recently found along Brindabella road andwe need your help to find any further outbreaks. Cooatai is a drought, herbicideand fire tolerant tussock grass from Africa. It is a major weed in northern NSW and it is capable of smoothering the understorey of our regions woodlands and gr... Continue reading

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Lavandula stoechas (Spanish Lavender or Topped Lavender)

Lavandula stoechas Leaves and flowers at end of stems
Lavandula stoechas small shrub
Lavandula stoechas Dried and brown-offed seed head
Lavandula stoechas
Lavandula stoechas
Lavandula stoechas

Spanish or Topped Lavender is well established on Mt Stromolo. A few plants are appearing elsewhere, particualrly on the urban fringe, and now is tthe time to act, when eradicationwithin a reserve is feasible.Topped Lavender forms dense stands that exclude all other ground plants and smaller shrubs,... Continue reading

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