Identify weeds that pose a serious risk to South Australia's environment and primary industries. Find out about:

  • recommended manual and chemical control options
  • legal obligations for landholders
  • restrictions on weed movement and sale
  • reporting requirements
  • links to state policies.

Reporting alert weeds

Alert weeds should be reported immediately to the Exotic Plant Pest Hotline on 1800 084 881.

To give an accurate report:

  1. Record the location where you saw the weed so it can be found again.
  2. Make detailed notes of the plant's features so it can be identified.
  3. Take a photograph or a sample of the plant, including the leaves, flowers, and fruit.
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Showing results 121 - 132 of 140 results

Sweet briar

(Rosa rubiginosa)
PerennialShrub

Sweet pittosporum

(Pittosporum undulatum)
PerennialTree

Tamarisks

(Tamarix parviflora and Tamarix ramosissima)
PerennialTree

Tasmanian blue gum (wilding)

(Eucalyptus globulus subsp. globulus)
PerennialTree

Texas needlegrass

(Nassella leucotricha)
PerennialGrass

Three corner jack

(Emex australis)
AnnualHerb

Three-cornered garlic

(Allium triquetrum)
PerennialHerb

Three-horned bedstraw

(Galium tricornutum)
AnnualHerb

Toe toe

(Cortaderia richardii)
Report if seen
PerennialGrass

Tree heath

(Erica arborea)
PerennialShrub

Variegated thistle

(Silybum marianum)
AnnualHerb

Water caltrop

(Trapa natans)
Report if seen
Annual