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Declared Weeds

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.

Schedule Class A / C*

*Area to which declaration applies is all of the Northern Territory unless otherwise stated.

Botanical Name

Common Name

Information (pdf)

Acacia catechu

Cutch tree

23Kb

Acacia nilotica

Prickly acacia

34Kb

Alternanthera philoxeroides

Alligator weed

23Kb

Annona glabra

Pond Apple

-

Asparagus asparagoides

Bridal creeper

-

Asphodelus fistulosus

Onion weed

25Kb

Barleria prionitis

Baleria

33Kb
Cabomba spp.

Cabomba

17Kb
Chrysanthemoides monilifera

Bitou bush/Boneseed

-
Cryptostegia spp.

Rubbervine

-

Dalbergia sissoo
(Area: N of 18 o S latitude)

Dalbergia

29Kb
Datura ferox

Longspine thornapple

30Kb
Echium plantagineum

Paterson's curse

27Kb
Eichhornia crassipes

Water hyacinth

25Kb
Jatropha curcas

Physic nut

29Kb
Lycium ferocissimum African boxthorn -

Martynia annua

Devil's claw

27Kb

Mimosa pigra
(Area: S of 14 o S latitude)

Mimosa, giant sensitive plant

34Kb

Nassella neesiana

Chilean needle grass

-

Nassella trichotoma

Serrated Tussock

-
Parthenium hysterophorus

Parthenium weed

24Kb

Prosopis spp.

Mesquite

-

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

Chinee apple, Indian jujube

38Kb

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Schedule Class B / C

*Area to which declaration applies is all of the Northern Territory unless otherwise stated.

Botanical name

Common Name

Information (pdf)

Acanthospermum hispidum

Star burr, goat's head

23Kb

Alternanthera pungens

Khaki weed

99Kb

Argemone ochroleuca

Mexican poppy

27Kb

Calotropis procera
(Area: S of 16 o30' S latitude)

Rubber bush

40Kb

Carthamus lanatus

Saffron thistle

32Kb

Cenchrus echinatus

Mossman River grass

36Kb

Emex australis

Spiny emex

25Kb

Hymenachne amplexicaulis

Olive hymenachne

-

Hyptis capitata

Knob weed

87Kb

Hyptis suaveolens

Hyptis

28Kb

Jatropha gossypiifolia

Bellyache bush

25Kb
Lantana camara

Common lantana

28Kb

Lantana montevidensis

Creeping lantana

35Kb

Leonotis nepetifolia

Lion's tail

42Kb

Mimosa pigra
(Area: N of 14 o S latitude)

Mimosa, giant sensitive plant

34Kb

Mimosa pudica

Common sensitive plant

22Kb

Opuntia spp.
(Area: S of 18 o S latitude)

Prickly pears

31Kb
Parkinsonia aculeata

Parkinsonia

26Kb

Pennisetum polystachion

Mission grass

31Kb

Pistia stratiotes

Water lettuce

31Kb

Ricinus communis

Castor oil plant

29Kb

Salvinia molesta

Salvinia

31Kb
Senna alata Candle bush 40Kb

Senna obtusifolia

Sicklepod

33Kb

Senna occidentalis

Coffee senna

22Kb

Sida acuta

Spinyhead sida

41Kb

Sida cordifolia

Flannel weed

97Kb

Sida rhombifolia

Paddy's lucerne

23Kb
Stachytarpheta spp. Snake weeds 113Kb

Tamarix aphylla

Tamarisk, Athel pine

25Kb

Themeda quadrivalvis

Grader grass

37Kb

Tribulus cistoides

Caltrop

33Kb

Tribulus terrestris

Caltrop

31Kb

Xanthium occidentale

Noogoora burr

21Kb

Xanthium spinosum

Bathurst burr

27Kb

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Schedule Class C

*Area to which declaration applies is all of the Northern Territory unless otherwise stated.

(Includes all class A and class B invasive weeds)

Botanical Name

Common Name

Information (pdf)

Acroptilon repens

Creeping knapweed

11Kb

Ageratina riparia

Mistflower

20Kb
Amaranthus dubius Chinese Spinach -

Ambrosia artemisiifolia

Annual ragweed

42Kb

Ambrosia psilostachya

Perennial ragweed

42Kb
Austroeupatorium inulaefolium   -

Baccharis halimifolia

Groundsel bush

11Kb
Boerhavia erecta   -
Brachiaria paspaloides Common Brachiaria, Thurston grass -

Chromolaena odorata

Siam Weed, Christmas bush

21Kb
Clidemia hirta Koster's curse, Soap bush -
Coix aquatica Job's tears -
Croton hirtus   -

Datura spp.

Thornapples

-
Digitaria fuscescens Common Crabgrass -
Digitaria insularis   -
Diodia sarmentosa   -
Echinochloa glabrescens a Barnyard grass -
Echinochloa stagnina   -

Egeria densa

Dense waterweed

25Kb

Elodea canadensis

Canadian pondweed

28Kb
Equisetum ramosissimum Horsetail, Scouring rush -
Equisetum spp. Horsetails -
Eriocaulon truncatum   -

Eriocereus martinii

Harrisia cactus

41Kb
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

26Kb
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

27Kb
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

23Kb
Spermacoce mauritiana   -
Striga angustifolia Witchweed -
Striga asiatica Witchweed -
Striga spp. (all non-indigenous) Witchweed -
Trapa spp. Floating Water Chestnut -

Xanthium spp.

Burrs

40Kb

The Weed Risk Assessment (WRA) process is currently evaluating existing weeds on this list as well as new invasive species.

The Northern Territory Weed Management Act 2001 provides the legislative framework for all your weed management responsibilities.

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