Declared Weeds
For information on how to identify and control declared weeds contact the Weed Management Branch on Phone 08 8999 4567 or email weedinfo.nretas@nt.gov.au
Schedule of classes
| A | To be eradicated | reasonable effort must be made to eradicate the plant within the NT |
| B | Growth and spread to be controlled | Reasonable attempts must be made to contain the growth and prevent the movement of the plant |
| C | Not to be introduced to the Territory | All Class A and Class B weeds are also considered to be Class C weeds. |
*Area to which declaration applies is all of the Northern Territory unless otherwise stated.
Schedule Class A / C*
Botanical Name |
Common Name |
Acacia catechu |
Cutch tree |
Acacia nilotica |
|
Alternanthera philoxeroides |
|
| Andropogon gayanus | |
Annona glabra |
|
Asparagus asparagoides |
Bridal creeper |
Asphodelus fistulosus |
Onion weed |
Barleria prionitis |
|
| Cabomba spp. | |
| Chrysanthemoides monilifera | Bitou bush/Boneseed |
| Cryptostegia spp. | |
Dalbergia sissoo |
Dalbergia |
| Datura ferox | |
| Echium plantagineum | Paterson's curse |
| Eichhornia crassipes | |
| Jatropha curcas | Physic nut |
| Lycium ferocissimum | African boxthorn |
Martynia annua |
|
Mimosa pigra |
|
Nassella neesiana |
Chilean needle grass |
| Nassella tenuissa |
Mexican Feather Grass (Class A) All of the NT |
Nassella trichotoma |
Serrated Tussock |
| Parthenium hysterophorus | |
Prosopis spp. |
|
Rubus fruticose agg. |
Blackberry |
Salix spp. except S. babylonica, S. X calodendron & S. X reichardtiji |
Willows (except weeping willows, pussy willow and sterile pussy willow) |
Ulex europaeus |
Gorse |
Ziziphus mauritiana |
Schedule Class B / C
Botanical name |
Common Name |
Acanthospermum hispidum |
Star burr, goat's head |
Alternanthera pungens |
|
| Andropogon gayanus | Gamba Grass |
Argemone ochroleuca |
|
Calotropis procera |
|
Carthamus lanatus |
Saffron thistle |
Cenchrus echinatus |
Mossman River grass |
Emex australis |
Spiny emex |
Hymenachne amplexicaulis |
|
Hyptis capitata |
Knob weed |
Hyptis suaveolens |
|
Jatropha gossypifolia |
|
| Lantana camara | |
Lantana montevidensis |
|
Leonotis nepetifolia |
|
Mimosa pigra |
|
Mimosa pudica |
Common sensitive plant |
Opuntia spp. |
Prickly pears |
| Parkinsonia aculeata | |
Pennisetum polystachion |
|
Pistia stratiotes |
Water lettuce |
Ricinus communis |
|
Salvinia molesta |
|
| Senna alata | Candle bush |
Senna obtusifolia |
|
Senna occidentalis |
|
Sida acuta |
|
Sida cordifolia |
Flannel weed |
Sida rhombifolia |
Paddy's lucerne |
| Stachytarpheta spp. | Snake weeds |
Tamarix aphylla |
|
Themeda quadrivalvis |
|
Tribulus cistoides |
|
Tribulus terrestris |
|
Xanthium occidentale |
|
Xanthium spinosum |
Bathurst burr |
Schedule Class C
(Includes all class A and class B invasive weeds)
Botanical Name |
Common Name |
Acroptilon repens |
Creeping knapweed |
Ageratina riparia |
Mistflower |
| Amaranthus dubius | Chinese Spinach |
Ambrosia artemisiifolia |
Annual ragweed |
Ambrosia psilostachya |
Perennial ragweed |
| Austroeupatorium inulaefolium | |
Baccharis halimifolia |
Groundsel bush |
| Boerhavia erecta | |
| Brachiaria paspaloides | Common Brachiaria, Thurston grass |
Chromolaena odorata |
|
| Clidemia hirta | Koster's curse, Soap bush |
| Coix aquatica | Job's tears |
| Croton hirtus | |
Datura spp. |
|
| Digitaria fuscescens | Common Crabgrass |
| Digitaria insularis | |
| Diodia sarmentosa | |
| Echinochloa glabrescens | a Barnyard grass |
| Echinochloa stagnina | |
Egeria densa |
Dense waterweed |
Elodea canadensis |
Canadian pondweed |
| Equisetum ramosissimum | Horsetail, Scouring rush |
| Equisetum spp. | Horsetails |
| Eriocaulon truncatum | |
Eriocereus martinii |
Harrisia cactus |
| Eriochloa polystachya | Carib grass |
| Fimbristylis umbellaris | Globular Fimbristylis |
| Hybanthus attenuatus | |
| Hyptis brevipes | Lesser Roundweed |
| Ischaemum timorense | Centipede grass |
| Kochia | Burning bush |
| Kochia scoparia (all except subsp. Trichopyla) | |
Lagarosiphon major |
Lagarosiphon |
| Leptochloa chinensis | Red sprangletop, Feathergrass |
| Leptochloa panicea | Sprangletop |
| Limnocharis flava | Yellow burrhead, yellow sawah lettuce |
| Miconia spp. | Velvet tree |
| Mikania cordata | |
| Mikania micrantha | Mile a minute |
Mimosa invisa |
Giant sensitive plant |
| Myriophyllum spicatum | Erasian watermilfoil |
| Orabanche spp. (all except O.minor and O.cernua var.australiana) | Broomrape |
| Paederia foetida | Lesser Malayan stinkwort |
| Piper aduncum | |
| Rhodomyrtus tomentosa | Downy rose myrtle |
| Rotala indica | Toothcup |
| Sacciolepis interrupta | |
| Salvinia cucullata | Salvinia |
| Salvinia natans | Salvinia |
| Schoenoplectus juncoides | |
| Scirpus maritimus | |
Sorghum halepense |
Johnson grass |
| Spermacoce mauritiana | |
| Striga angustifolia | Witchweed |
| Striga asiatica | Witchweed |
| Striga spp. (all non-indigenous) | Witchweed |
| Trapa spp. | Floating Water Chestnut |
Xanthium spp. |
Burrs |
The Weed Risk Management (WRM) process is currently evaluating existing weeds on this list as well as new invasive species.
The Northern Territory Weed Management Act determines weed management responsibilities.
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