Priority species
Weeds of National Significance

Weeds of National Significance

Posted by DCCEEW

Overview

Thirty-two Weeds of National Significance (known as WONS) have been identified based on their invasiveness, potential for spread and environmental, social and economic impacts. View their profiles.

Further information: Invasive Plants and Animals Committee 2016, Australian Weeds Strategy 2017 to 2027, Australian Government Department of Agriculture and Water Resources, Canberra

36 species

Mimosa pigra (Mimosa)

Nassella neesiana (Chilean Needlegrass)

Nassella neesiana
Nassella neesiana
Nassella neesiana
Nassella neesiana
Nassella neesiana
Nassella neesiana

Nassella trichotoma (Serrated Tussock)

Nassella trichotoma

Flower spikelets

Nassella trichotoma

Typical plant with visible seed heads
Nassella trichotoma

Typical plant in dry conditions
Nassella trichotoma
Nassella trichotoma
Nassella trichotoma

Opuntia sp. (Prickly Pear)

Opuntia sp.
Opuntia sp.
Opuntia sp.
Opuntia sp.
Opuntia sp.
Opuntia sp.

Parkinsonia aculeata (Parkinsonia)

Parthenium hysterophorus (Parthenium Weed)

Parthenium hysterophorus
Parthenium hysterophorus
Parthenium hysterophorus
Parthenium hysterophorus

Prosopis species (Mesquite)

Rubus fruticosus sp. aggregate (Blackberry)

Rubus fruticosus sp. aggregate
Rubus fruticosus sp. aggregate
Rubus fruticosus sp. aggregate
Rubus fruticosus sp. aggregate
Rubus fruticosus sp. aggregate
Rubus fruticosus sp. aggregate

Sagittaria platyphylla (Sagittaria)

Sagittaria platyphylla
Sagittaria platyphylla
Sagittaria platyphylla
Sagittaria platyphylla
Sagittaria platyphylla
Sagittaria platyphylla

Salix sp. (A Willow)

Salix sp.
Salix sp.
Salix sp.
Salix sp.
Salix sp.
Salix sp.

Salvinia molesta (Salvinia)

Salvinia molesta
Salvinia molesta
Salvinia molesta
Salvinia molesta
Salvinia molesta
Salvinia molesta

Senecio madagascariensis (Madagascan Fireweed, Fireweed)

Senecio madagascariensis
Senecio madagascariensis
Senecio madagascariensis
Senecio madagascariensis
Senecio madagascariensis
Senecio madagascariensis

Solanum elaeagnifolium (Silverleaf Nightshade)

Tamarix aphylla (Athel Pine)

Ulex europaeus (Gorse)

Ulex europaeus
Ulex europaeus
Ulex europaeus
Ulex europaeus
Ulex europaeus
Ulex europaeus

Vachellia nilotica (Prickly Acacia)

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Verified organisation

  • Exotic (change?)
    * designates formal legal status
  • All invasiveness levels (change?)

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