Noxious Weed List

Noxious weed declarations for the Hawkesbury River County Council (HRCC) area.

From 1 July 2017, the Noxious Weeds Act 1993 will be repealed and replaced with the Biosecurity Act 2015. As such the declaration status and control measure of any weeds listed on this page will be no longer relevant. HRCC is developing a Local Weeds Plan which will guide the implementation of the new Act in relation to weeds.

The name “noxious weed” is a strictly legal term. It relates to plants which are “scheduled” by the Department of Primary Industries under the Noxious Weeds Act 1993HRCC is the Local Control Authority for all land (terrestrial and aquatic) within the cities of BlacktownPenrithHawkesbury and Hills Shire.  The plants below are the current noxious weeds for this area.

Please click on the links for more information about the weed. All photos on this page courtesy NSW DPI Biosecurity.  © NSW Department of Primary Industries

Class Descriptions are at the end of the list.

A text only PDF of the “official” list can be downloaded here.

Please Contact Us us if you have any questions. Or call (02) 4574 9600.

The following list is Weed Control Order 30, 28 February 2014. This is a guide only.

Common name Scientific name Area to Which the Weed Control Order Applies Control Measures Declaration WCO30
African boxthorn Lycium ferocissimum Hawkesbury River County Council More info The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread and the plant must not be sold, propagated or knowingly distributed 4
African feather grass Cenchrus macrourus Whole of NSW More info The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
African OliveAfican olive Olea europaea subspecies cuspidata Hawkesbury River County Council More info. The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread and the plant must not be sold, propagated or knowingly distributed 4
African turnip weed Sisymbrium runcinatum Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
African turnip weed Sisymbrium thellungii Whole of NSW More info. The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Alligator weed Alternanthera philoxeroides Hawkesbury River County CouncilThis is also a Weed Of National Significance.Control Manual. The plant must be fully and continuously suppressed and destroyed. 3 P2
Anchored water hyacinth Eichhornia azurea Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Annual ragweed Ambrosia artemisiifolia Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Arrowhead Sagittaria calycina variety calycina Hawkesbury River County Council The plant must not be sold, propagated or knowingly distributed 4
Artichoke thistle Cynara cardunculus Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Asparagus Asparagus species except A. officinalis and A. racemosus Hawkesbury River County Council The plant must not be sold, propagated or knowingly distributed 4
Athel pine Tamarix aphylla Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Bear-skin fescue Festuca gautieri Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Bellyache bush Jatropha gossypiifolia - Bellyache bush_16480 Jatropha gossypiifolia Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Black knapweed Centaurea xmoncktonii Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Black willow Salix willow_16107 Salix nigra Hawkesbury River County CouncilMore info. The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 2
Blackberry Blackberry-flower-web-BV Rubus fruticosus aggregate species Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread and the plant must not be sold, propagated or knowingly distributed. 4
Boneseed boneseed1-plants Chrysanthemoides monilifera subspecies monilifera Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Broad-leaf pepper tree Schinus terebinthifolius - Broadleaf pepper tree_16851 Schinus terebinthifolius Hawkesbury River County CouncilMore Info. The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 2
Broomrapes Orobanche species except the native O. cernua variety australiana and O. minor Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Burr ragweed Ambrosia confertiflora Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Cabomba All Cabomba species except C. furcata Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Cat’s claw creeper Dolichandra unguis-cati - Cats claw creeper_16319 Dolichandra unguis-catiMore Info Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spreadDownload the local Cats Claw Control manual. PDF 6.3MB 4
Cayenne snakeweed Stachytarpheta cayennensis Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Chilean needle grass Nassella neesiana Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread and the plant must not be sold, propagated or knowingly distributed 4
Chinese celtis Celtis sinensis - Celtis tree_15862 Celtis sinensis Hawkesbury River County CouncilMore info. The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread and the plant must not be sold, propagated or knowingly distributed 4
Chinese violet Asystasia gangetica subspecies micrantha Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Climbing Asparagus Asparagus africanus (syn. Protasparagus africanus) Hawkesbury River County Council The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 2
Clockweed Oenothera curtiflora Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Coolatai grass Hyparrhenia hirta - Coolatai grass_16445 Hyparrhenia hirta Hawkesbury River County CouncilMore info. The plant must be fully and continuously suppressed and destroyed and the plant must not be sold, propagated or knowingly distributed. 3 P1
Corn sowthistle Sonchus arvensis Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Dodder All Cuscuta species except the native species C. australis, C. tasmanica and C. victoriana Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Elodea / Egeria / Leafy Elodea Egeria densa - Dense waterweed_16329 Egeria densa Whole of NSWMore info. The plant must not be sold, propagated or knowingly distributed 4
Espartillo Amelichloa brachychaeta Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Espartillo Amelichloa caudata Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Eurasian water milfoil Myriophyllum spicatum Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Fine-bristled burr grass Cenchrus brownii Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Fountain grass Cenchrus setaceus Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Frogbit/Spongeplant Limnobium laevigatum and L. spongia Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Gallon’s curse Cenchrus biflorus Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Gamba grass Andropogon gayanus - Gamba grass_15696 Andropogon gayanus Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Giant Parramatta grass Sporobolus fertilis Hawkesbury River County Council The plant must be fully and continuously suppressed and destroyed. 3 P2
Glaucous star thistle Carthamus glaucus Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Golden dodder Cuscuta campestris Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread 4
Golden thistle Scolymus hispanicus Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Gorse Ulex europaeus Hawkesbury River County Council The plant must be fully and continuously suppressed and destroyed 3 P2
Green cestrum Green-Cestrum-flower-and-leaf-formation Cestrum parqui Hawkesbury River County Council The plant must be fully and continuously suppressed and destroyed 3 P2
Grey sallow Salix willow_16111 Salix cinerea Hawkesbury River County Council The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 2
Groundsel bush Baccharis halimifolia - Groundsel bush_15784 Baccharis halimifolia Hawkesbury River County CouncilMore info. The plant must be fully and continuously suppressed and destroyed 3 P2
Harrisia cactus Harrisia species Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread and the plant must not be sold, propagated or knowingly distributed 4
Hawkweed Hieracium species Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Horsetail Equisetum species Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Hydrocotyl/Water pennywort Hydrocotyle ranunculoides Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Hygrophila Hygrophila costata Hawkesbury River County Council The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 2
Hymenachne Hymenachne amplexicaulis and hybrids Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Karoo thorn Vachellia karroo Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Kidney leaf mud plantain Heteranthera reniformis - Mud plantain_15945 Heteranthera reniformis Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Kochia Bassia scoparia except B. scoparia subspecies trichophylla Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Kosters curse/Clidemia Clidemia hirta Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Kudzu Pueraria lobata, Kudzu Vines Pueraria lobata Hawkesbury River County CouncilMore info. The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 2
Lagarosiphon Lagarosiphon major Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Lantana Lantana-white-web Lantana species Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread. 4
Lippia Phyla canescens Whole of NSW The plant must not be sold, propagated orknowingly distributed except incidentally in hay or lucerne. 4
Long-leaf willow primrose Ludwigia-longifolia-flowers Ludwigia longifolia Hawkesbury River County Council The plant must be fully and continuously suppressed and destroyed. 3 P2
Ludwigia Ludwigia peruviana Hawkesbury River County Council The plant must be fully and continuously suppressed and destroyed 3 P2
Mexican feather grass Nassella tenuissima Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Mexican poppy Argemone mexicana Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Miconia Miconia species Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Mikania vine Mikania micrantha Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Mimosa Mimosa pigra Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Ming (Pompom/Zig zag) asparagus fern Asparagus macowaniivar. zuluensis (syn. A. retrofractus) Hawkesbury River County Council The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 2
Montpellier/Cape broom Genista monspessulana - Cape broom_15935 Genista monspessulana Hawkesbury River County CouncilMore info. The plant must be fully and continuously suppressed and destroyed and the plant must not be sold, propagated or knowingly distributed. 3 P1
Mossman River grass Cenchrus echinatus Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Mother-of-millions B-delagoense-flowers Bryophyllum daigremontianum; B. delagoense; B. xhoughtonii; B. pinnatum; B. proliferum Hawkesbury River County Council The plant must be fully and continuously suppressed and destroyed and the plant must not be sold, propagated or knowingly distributed. 3 P1
Pampas grass pink-pampas-grass Cortaderia species Hawkesbury River County Council The plant must be fully and continuously suppressed and destroyed and the plant must not be sold, propagated or knowingly distributed. 3 P1
Paper mulberry Broussonetia papyrifera Hawkesbury River County Council The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 2
Parthenium weed                                                                                             A Weed of National Significance (WONS) Parthenium hysterophorus Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Paterson’s curse Echium plantagineum, E. vulgare and E. italicum Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread 4
Pond apple Annona glabra Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Prickly acacia Vachellia nilotica Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Prickly pear - Hudson PearHudson-pear-on-car-wheel Cylindropuntia species Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread and the plant must not be sold, propagated or knowingly distributed 4
Prickly pear Opuntia-robusta-flowers Opuntia species Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread and the plant must not be sold, propagated or knowingly distributed 4
Privet (Broad-leaf) privet-broadleaf-berries-JH Ligustrum lucidum Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread 4
Privet (Narrow-leaf/Chinese) Privet-European-plant-JH Ligustrum sinense Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread 4
Red rice Oryza rufipogon Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Rhizomatous bamboo Phyllostachys species Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread and the plant must not be sold, propagated or knowingly distributed 4
Rubbervine Cryptostegia grandiflora Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Sagittaria Sagittaria platyphylla Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread and theplant must not be sold, propagated or knowingly distributed. 4
Salvinia salvinia-closeup-webThis is also a Weed of National Significance (WONS)  Salvinia molesta Hawkesbury River County Council The plant must be fully and continuously suppressed and destroyed 3 P2
Scotch/English broom Cytisus scoparius subspecies scoparius Hawkesbury River County CouncilMore info. The plant must not be sold, propagated or knowingly distributed 4
Senegal tea plant senegal-tea-flower-web Gymnocoronis spilanthoides Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Serrated tussock Nassella trichotoma Hawkesbury River County Council The plant must be fully and continuously suppressed and destroyed and the plant must not be sold, propagated or knowingly distributed. 3 P1
Siam weed Chromolaena odorata Whole of NSWMore info. The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Silver-leaf nightshade Solanum elaeagnifolium - Silverleaf nightshade_16876 Solanum elaeagnifolium Hawkesbury River County Council 4
Smooth-stemmed turnip Brassica barrelieri subspecies oxyrrhina Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Soldier thistle Picnomon acarna Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Spotted knapweed Centaurea stoebe subspecies micranthos Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
St. John’s wort Hypericum perforatum Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread and the plant must not be sold, propagated or knowingly distributed 4
Texas blueweed Helianthus ciliaris Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Tropical soda apple Solanum viarum Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Tussock paspalum Paspalum quadrifarium Hawkesbury River County Council The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread and the plant must not be sold, propagated or knowingly distributed. 4
Water caltrop Trapa species Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Water hyacinth water-hyacinth-flower-psThis is also a Weed Of National Significance (WONS). Eichhornia crassipes Hawkesbury River County Council The plant must be fully and continuously suppressed and destroyed 3 P2
Water lettuce Pistia stratiotes Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Water soldier Stratiotes aloides Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Willows Salix species except S. babylonica, S. xreichardtii, S. xcalodendron Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5
Witchweed Striga species except the native Striga parviflora Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Yellow bells Tecoma stans Hawkesbury River County Council The plant must be fully and continuously suppressed and destroyed 3 P2
Yellow burrhead Limnocharis flava Whole of NSW The plant must be eradicated from the land and the land must be kept free of the plant the requirements in the Act for a notifiable weed must be complied with. 1
Yellow nutgrass Cyperus esculentus Whole of NSW The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with 5

Definitions of Classes

Control class

Weed type

Example control requirements

Class 1 Plants that pose a potentially serious threat to primary production or the environment and are not present in the State or are present only to a limited extent. The plant must be eradicated from the land and the land must be kept free of the plant.The weeds are also “notifiable” and a range of restrictions on their sale and movement exist.
Class 2 Plants that pose a potentially serious threat to primary production or the environment of a region to which the order applies and are not present in the region or are present only to a limited extent. The plant must be eradicated from the land and the land must be kept free of the plant.The weeds are also “notifiable” and a range of restrictions on their sale and movement exist.
Class 3 Plants that pose a potentially serious threat to primary production or the environment of a region to which the order applies, are not widely distributed in the area and are likely to spread in the area or to another area. The plant must be fully and continuously suppressed and destroyed.*
Class 4 Plants that pose a potentially serious threat to primary production, the environment or human health, are widely distributed in an area to which the order applies and are likely to spread in the area or to another area. The growth of the plant must be managed in a manner that reduces its numbers spread and incidence and continuously inhibits its reproduction*
Class 5 Plants that are likely, by their sale or the sale of their seeds or movement within the State or an area of the State, to spread in the State or outside the State. There are no requirements to control existing plants of Class 5 weeds.However, the weeds are “notifiable” and a range of restrictions on their sale and movement exists.