Noxious Weeds

A noxious weed is one that is legally declared and must be controlled or removed under the NSW Noxious Weeds Act 1993. All owners and occupiers of property are obliged to comply with this Act.

Weeds are declared noxious if they pose a significant problem to human health, the environment, livestock or the agriculture industry. The weeds below are declared in either some or all council areas in the Sydney region. Check with your local council to find out which weeds are declared noxious in your area and for details on the control measures required.

Trees
African Olive Olea europaea subsp. africana	Camphor Laurel Cinnamomum camphora	Cocks Comb Coral Tree Erythrina crista-galli
Karoo Thorn Acacia Karoo	Miconia Miconia spp.	Large Leaf Privet Ligustrum lucidum
Rhus Tree Toxicodendron succedanium	Willows Salix spp. (except S.babylonica; S.calodendron & S. reichardtii)
Shrubs
Bitou Bush Chryanthemoides monilifera	Cape Broom Genista monspessulana	Cassia Senna pendula
Castor Oil Plant Ricinus communis	Cotoneaster Cotoneaster glaucophyllus	Crofton Weed Ageratina adenophora
Green Cestrum Cestrum parqui	Kochia Kochia scoparia (Except K. scoparia subsp. Tricophylla)	Lantana (red or pink) Lantana camara
Ochna Ochna serrulata	Scotch / English Broom Cytisus scoparius	Siam Weed Chromolaena odorata
Small Leaf Privet Ligustrum sinense
Vines and scramblers
Arrowhead Vine / Turkey rhubarb Acetosa saggitata	Asparagus Fern Asparagus densiflorus	Balloon Vine Cardiospermum grandiflorum
Blackberry Rubus fruticosus	Bridal Creeper Asparagus asparagoides	Cape Ivy Delairea odorata
Cats Claw Creeper Macfadyena unguis-cati	Climbing Asparagus Asparagus plumosus	Coastal Morning Glory Ipomea cairica
Madeira Vine Anredera cordifolia	Morning Glory Ipomea indica	Moth Vine Araujia hortorum
Herbs
Black Knapweed Centaurea nigra	Broomrape Orobanche spp. (Except O. minor and O. cernua var Australiana)	Fishbone Fern Nephrolepis cordifolia
Harrisia cactus Harrisia spp.	Hawkweeds Hieracium spp.	Horsetail Equisetum spp.
Parthenium Weed Parthenium hyusterophorus	Pellitory / Asthma Weed Parietaria judacia	Prickly Pears Opntia spp. (except O.ficus indica)
St Johns's Wort Hypericum perforatum	Spotted Knapweed Centaurea maculosa	Trad Tradescantia albiflora /Tradescantia fluminensis
Grasses
Giant Reed Arundo donax	Mexican feather grass Nassella tenuissima syn Stipa tenuissima	Pampas Grass Cortaderia spp.
Rhizomatus Bamboo Phyllostchys spp.	Tussock Paspalum Paspalum quadrifarium
Aquatic Weeds
Alligator Weed Alternanthera philoxeriodes	Cabomba Cabomba spp. (except Cabomba furcata)	Lagarosiphon Lagarosiphon major
Ludwigia Ludwigia peruviana	Longleaf Willow Primrose Ludwigia longifolia	Salvinia Salvinia molesta
Senegal Tea Plant Gymnocoronis spilanthoides	Water Hyacinth Eichornia crassipes	Water Lettuce Pistia stratiotes