Priority Weeds List

Priority weeds are plants which have been deemed to have a strong negative impact on our environment, agricultural systems, economy or human health. This list has been taken from the HRCC Local Weeds Plan 2017, which was developed under the direction of the Biosecurity Act 2015 (NSW) and the Greater Sydney Regional Weeds Plan 2017.

A PDF version of the list below is available here.

COMMON NAME BOTANICAL NAME

OBJECTIVE

LISTING

WRA

African boxthorn   Lycium ferocissimum

ASSET

STATE

YES

African milk bush Synadenium grantii

ERADICATION

LOCAL

YES

African olive Olea europaea subsp. cuspidata

CONTAINMENT

REGIONAL

YES

Alligator Weed   Alternanthera philoxeroides

CONTAINMENT

STATE

YES

Alligator weed Alternanthera philoxeroides

CONTAINMENT

REGIONAL

YES

Anchored water hyacinth   Eichhornia azurea

PREVENTION

STATE

YES

Arrowhead Sagittaria calycina var. calycina

CONTAINMENT

LOCAL

YES

Asparagus fern Asparagus virgatus

CONTAINMENT

LOCAL

YES

Asparagus weeds   Asparagus aethiopicus, †A. africanus, A. asparagoides including the Western Cape form*, A. plumosus, and A. scandens

ASSET

STATE

YES

Bellyache bush   Jatropha gossypiifolia

ASSET

STATE

YES

Bitou Bush   Chrysanthemoides monilifera subsp. rotundata

CONTAINMENT

STATE

YES

Black knapweed   Centaurea x moncktonii

PREVENTION

STATE

YES

Black willow Salix nigra

PREVENTION

REGIONAL

YES

Black willow Salix nigra

ERADICATION

REGIONAL

YES

Blackberry Rubus fruticosus agg. (Blackberry except the varietals Chester Thornless, Dirksen Thornless, Loch Ness, Silvan, Black Satin, Murrindindi, Smooth Stem, Thornfree and Chehalem)

ASSET

STATE

YES

Boneseed   Chrysanthemoides moniliferasubspecies monilifera

ERADICATION

STATE

YES

Bridal veil creeper Asparagus declinatus

PREVENTION

STATE

YES

Broadleaf pepper tree Schinus terebinthifolius

ERADICATION

LOCAL

YES

Broomrape Orobanche spp. (all species except the native O. cernua var. australiana and O. minor)

PREVENTION

STATE

YES

Cabomba Cabomba caroliniana

ASSET

REGIONAL

YES

Cabomba ‡ Cabomba caroliniana

ASSET

STATE

YES

Cape/Montpellier broom Genista monspessulana

ASSET

STATE

YES

Cat’s claw creeper Dolichandra unguis-cati

ASSET

REGIONAL

YES

Cat’s Claw Creeper  ‡ Dolichandra unguis-cati

ASSET

STATE

YES

Chilean needle grass Nassella neesiana

ASSET

STATE

YES

Chinese celtis Celtis sinensis

CONTAINMENT

LOCAL

YES

Chinese knotweed Persicaria chinensis

ERADICATION

REGIONAL

YES

Chinese violet Asystasia gangetica subsp. micrantha

PREVENTION

REGIONAL

YES

Climbing asparagus Asparagus africanus

ERADICATION

REGIONAL

YES

Coolatai grass Hyparrhenia hirta

ERADICATION

LOCAL

YES

Coral creeper Barleria repens

PREVENTION

REGIONAL

YES

Corky passionfruit Passiflora suberosa

CONTAINMENT

LOCAL

YES

Crofton weed Ageratina adenophora

ASSET

LOCAL

YES

COMMON NAME BOTANICAL NAME

OBJECTIVE

LISTING

WRA

East Indian hygrophila Hygrophila polysperma

PREVENTION

REGIONAL

YES

Eurasian water milfoil Myriophyllum spicatum

PREVENTION

STATE

YES

Fireweed   Senecio madagascariensis

ASSET

STATE

YES

Flax-leaf broom Genista linifolia

ASSET

STATE

YES

Frogbit / Spongeplant   Limnobium spp. (all species)

PREVENTION

STATE

YES

Giant devil’s fig Solanum chrysotrichum

PREVENTION

REGIONAL

YES

Giant rats tail grass Sporobolus pyramidalis

PREVENTION

REGIONAL

YES

Giant reed Arundo donax

ASSET

REGIONAL

YES

Glory lily Gloriosa superba

ERADICATION

REGIONAL

YES

Gorse Ulex - europaeus

CONTAINMENT

REGIONAL

YES

Gorse †† Ulex europaeus

ASSET

STATE

YES

Green cestrum Cestrum parqui

ASSET

REGIONAL

YES

Grey sallow Salix cinerea

ERADICATION

REGIONAL

YES

Groundsel bush Baccharis halimifolia

ERADICATION

LOCAL

YES

Hawkweed   Hieracium spp (all species)

PREVENTION

STATE

YES

Holly-leaved senecio Senecio glastifolius

CONTAINMENT

REGIONAL

YES

Honey locust Gleditsia tricanthos

CONTAINMENT

LOCAL

YES

Horsetails Equisetum spp.

CONTAINMENT

REGIONAL

YES

Hydrocotyl/Water pennywort   Hydrocotyle ranunculoides

PREVENTION

STATE

YES

Hygrophilla Hygrophilla costata

ERADICATION

REGIONAL

YES

Hymenachne Hymenachne amplexicaulis

PREVENTION

REGIONAL

YES

Hymenachne  # Hymenachne amplexicaulis

ASSET

STATE

YES

Karoo acacia Vachellia karroo (syn. Acacia karroo)

PREVENTION

STATE

YES

Kei apple Dovyalis caffra

ERADICATION

REGIONAL

YES

Kidney leaf mud plantain Heteranthera reniformis

ERADICATION

REGIONAL

YES

Kochia Bassia scoparia (excluding subsp. trichophylla)

PREVENTION

STATE

YES

Koster’s curse   Clidemia hirta

PREVENTION

STATE

YES

Kudzu Pueraria lobata

ERADICATION

REGIONAL

YES

Lagarosiphon   Lagarosiphon major

PREVENTION

STATE

YES

Lantana   Lantana camara

ASSET

STATE

YES

Leaf cactus Pereskia aculeata

ERADICATION

REGIONAL

YES

Leafy elodea Egeria densa

CONTAINMENT

LOCAL

YES

Lippia Phyla canescens

ERADICATION

LOCAL

YES

Long leaf willow primrose Ludwigia longifolia

CONTAINMENT

LOCAL

YES

Madeira vine   Anredera cordifolia

ASSET

STATE

YES

Mesquite   Prosopis spp.

ASSET

STATE

YES

Mexican feather grass Nassella tenuissima (syn. Stipatenuissima)

PREVENTION

STATE

YES

Miconia   Miconia spp. (all species)

PREVENTION

STATE

YES

Mikania vine   Mikania micrantha

PREVENTION

STATE

YES

Mimosa Mimosa pigra

PREVENTION

STATE

YES

COMMON NAME   BOTANICAL NAME

OBJECTIVE

LISTING

WRA

Ming fern Asparagus macowanii var. zuluensis

ERADICATION

REGIONAL

YES

Mother of millions Bryophyllum species

ASSET

LOCAL

YES

Mysore thorn Caesalpinia decapetala

ERADICATION

REGIONAL

YES

Nodding thistle Carduus nutans

PREVENTION

REGIONAL

YES

Opuntia Opuntia spp., Cylindropuntia spp., Austrocylindropuntia spp. (Excludes O. ficus- indica)

ASSET

STATE

YES

Ox eye daisy Leucanthemum vulgare

ERADICATION

LOCAL

YES

Pampas grass Cortaderia jubata

ASSET

REGIONAL

YES

Paper mulberry Broussonetia papyrifera

PREVENTION

LOCAL

YES

Parkinsonia   Parkinsonia aculeata

ERADICATION

STATE

YES

Parthenium Weed Parthenium hysterophorus

PREVENTION

STATE

YES

Pond apple Annona glabra

PREVENTION

STATE

YES

Prickly acacia Vachellia nilotica (syn. Acacia nilotica)

PREVENTION

STATE

YES

Rattlepods Crotolaria lunata

ASSET

LOCAL

YES

Rubber vine Cryptostegia grandiflora

PREVENTION

STATE

YES

Sagittaria   Sagittaria platyphylla

ASSET

STATE

YES

Salvinia Salvinia molesta

CONTAINMENT

REGIONAL

YES

Salvinia †† Salvinia molesta

ASSET

STATE

YES

Scotch/English broom Cytisus scoparius

ASSET

REGIONAL

YES

Scotch/English broom ‡ Cytisus scoparius subsp. scoparius

ASSET

STATE

YES

Sea spurge Euphorbia paralias

CONTAINMENT

REGIONAL

YES

Senegal tea Gymnocoronis spilanthoides

CONTAINMENT

REGIONAL

YES

Serrated tussock Nassella trichotoma

CONTAINMENT

REGIONAL

YES

Serrated tussock †† Nassella trichotoma

ASSET

STATE

YES

Siam weed   Chromolaena odorata

PREVENTION

STATE

YES

Sicilian sea lavender Limonium hyblaeum

ERADICATION

REGIONAL

YES

Sicklethorn Asparagus falcatus

ERADICATION

REGIONAL

YES

Silver-leaf nightshade   Solanum elaeagnifolium

ASSET

STATE

YES

Singapore daisy Sphagneticola trilobata

ASSET

REGIONAL

YES

Skunk vine Paederia foetida

ERADICATION

REGIONAL

YES

Spanish broom Spartium junceum

PREVENTION

REGIONAL

YES

Spotted knapweed Centaurea stoebe subsp.australis

PREVENTION

STATE

YES

Tropical soda apple Solanum viarum

ERADICATION

STATE

YES

Water caltrop Trapa spp. (all species)

PREVENTION

STATE

YES

Water hyacinth Eichhornia crassipes

CONTAINMENT

STATE

YES

Water hyacinth Eichhornia crassipes

ASSET

REGIONAL

YES

Water lettuce Pistia stratiotes

PREVENTION

REGIONAL

YES

Water poppy Hydrocleys nymphoides

CONTAINMENT

REGIONAL

YES

Water soldier Stratiotes aloides

PREVENTION

STATE

YES

Water star grass Heteranthera zosterifolia

PREVENTION

REGIONAL

YES

White blackberry / Mysore raspberry Rubus niveus

PREVENTION

REGIONAL

YES

 
COMMON NAME BOTANICAL NAME

OBJECTIVE

LISTING

WRA

Willow-leaf primrose/ Water primrose Ludwigia peruviana

ASSET

REGIONAL

YES

Willows † Salix spp.(excludes S.babylonica, S.X calodendron & S. x reichardtiji)

ASSET

STATE

YES

Witchweed Striga spp. (except the native S. parviflora)

PREVENTION

STATE

YES

Yellow bells Tecoma stans

ERADICATION

LOCAL

YES

Yellow burrhead Limnocharis flava

PREVENTION

STATE

YES

A1.1 State level determined priority weeds

 

State Priority Weed Objective – PREVENTION

The following weeds are currently not found in the state, pose significant biosecurity risk and Prevention of the biosecurity risk is a reasonably practical objective.

 

State Priority Weed Objective – ERADICATION

The following weeds are present in limited distribution and abundance in some parts of the state. Elimination of the biosecurity risk posed by these weeds is a reasonably practical objective.

 

State Priority Weed Objective – CONTAINMENT

These weeds are widely distributed in some parts of the state. While broad scale elimination is not practicable, minimisation of the biosecurity risk posed these weeds is reasonably practicable.

 

State Priority Weed Objective – ASSET PROTECTION (Whole of State) 

These weeds are widely distributed in some areas of the State. As Weeds of National Significance, their spread must be minimised to protect priority assets.

 

A1.2 Regional priority weeds

 

Regional Priority Weed Objective – PREVENTION

The following weeds are currently not found in the Greater Sydney region, pose significant biosecurity risk and prevention of the biosecurity risk posed by these weeds is a reasonably practical objective

 

Regional Priority Weed Objective – ERADICATION

The following weeds are present in limited distribution and abundance. Elimination of the biosecurity risk posed by these weeds is a reasonably practical objective.

 

Regional Priority Weeds objective – CONTAINMENT

These weeds are widely distributed in the region. While broad scale elimination is not practicable, minimisation of the biosecurity risk posed by these weeds is reasonably practicable.

 

Regional Priority Weed Objective – ASSET PROTECTION

 

Regional Strategic Response:

Identify priority assets for targeted management.

# Refer Appendix 1.2 Prevention.                                   † Refer Appendix 1.2 Eradication.

†† Refer Appendix 1.2 Containment.                              ‡ Refer Appendix 1.2 Asset Protection.