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List of invasive plant species in the Northern Territory

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Numerous plants have been introduced to the Northern Territory of Australia since colonisation began in the 1860s. Many have become invasive species or noxious weeds which by definition compete with native plants and suppress the growth of indigenous populations of both plants and animals.

A weed is broadly considered to be a plant that requires some form of action to reduce its negative effects on the economy, the environment and human health or amenity. XXX weeds are declared under legislative controls to reduce their impacts.[1]

Weed classification

The Weeds Management Act 2001 defines three classes of weeds:

  • Class A: to be eradicated
  • Class B: control, growth and spread to be prevented
  • Class C: prevent entry, not to be introduced into the Northern Territory

All class A and class B weeds are also included as class C weeds.[2]

Lists

Declared weeds

Botanical name Common name Declaration class
Alternanthera philoxeroides Alligator weed A
Andropogon gayanus Gamba grass A, B
Annona glabra Pond apple A
Asphodelus fistulosus Onion weed A
Austrocylindropuntia spp. Opuntioid cacti A
Barleria prionitis Barleria A
Cabomba spp. Cabomba A
Chrysanthemoides monilifera Bitou bush, boneseed A
Cryptostegia spp. Rubber vines A
Cylindropuntia spp. Opuntioid cacti, rope cacti A
Dalbergia sissoo Longspine thornapple A
Datura ferox Dalbergia A
Dolichandra unguis-cati syn. Macfadyena unguis-cati Cat's claw creeper A
Echium plantagineum Paterson's curse A
Eichhornia crassipes Water hyacinth A
Hyparrhenia rufa Thatch grass A
Jatropha curcas Physic nut A
Jatropha gossypiifolia Bellyache bush A, B
Lycium ferocissimum African boxthorn A
Martynia annua Devil's claw A
Mimosa pigra Mimosa A
Myriophyllum aquaticum Parrot's feather A
Nassella neesiana Chilean needle grass A
Nassella tenuissima Mexican feather grass A
Nassella trichotoma Serrated tussock A
Neptunia plena Water mimosa A
Neptunia oleraceae Water mimosa A
Opuntia spp. Prickly pears A
Parthenium hysterophorus Parthenium weed A
Pereskia aculeata Leaf cactus A
Prosopis spp. Mesquite A
Rubus fruticose agg. Blackberry A
Sagittaria platyphylla Sagittaria A
Salix spp. Willows A
Schinus terebinthifolius Brazilian pepper A
Senegalia catechu syn. Acacia catechu Cutch tree A
Tamarix aphylla Athel pine A
Ulex europaeus Gorse A
Vachellia nilotica syn. Acacia nilotica Prickly acacia A
Ziziphus mauritiana Chinee apple, Indian jujube A
Acanthospermum hispidum Star burr, goat’s head B
Alternanthera pungens Khaki weed B
Argemone ochroleuca Mexican poppy B
Azadirachta indica Neem B
Calotropis procera Rubber bush B
Carthamus lanatus Saffron thistle B
Cenchrus echinatus Mossman River grass B
Cenchrus polystachios Syn. Pennisetum polystachion Mission grass (perennial) B
Cenchrus setaceus Fountain grass B
Emex australis Spiny emex B
Hymenachne amplexicaulis Olive hymenachne B
Hyptis capitata Knob weed B
Hyptis suaveolens Hyptis B
Lantana camara Common lantana B
Lantana montevidensis Creeping lantana B
Leonotis nepetifolia Lion's tail B
Mimosa pigra Mimosa B
Mimosa pudica Common sensitive plant B
Parkinsonia aculeata Parkinsonia B
Pistia stratiotes Water lettuce B
Ricinus communis Castor oil plant B
Salvinia molesta Salvinia B
Schinus terebinthifolius Brazilian pepper B
Senna alata Candle bush B
Senna obtusifolia Sicklepod B
Senna occidentalis Coffee senna B
Sida acuta Spinyhead sida B
Sida cordifolia Flannel weed B
Sida rhombifolia Paddy's lucerne B
Stachytarpheta spp. Snake weeds B
Tamarix aphylla Athel pine B
Themeda quadrivalvis Grader grass B
Tribulus cistoides Caltrop B
Tribulus terrestris Caltrop B
Xanthium strumarium Syn. Xanthium occidentale Noogoora burr B
Xanthium spinosum Bathurst burr B

See also

References

  1. ^ "Australian Weeds Strategy 2017–2027" (PDF). Invasive Plants and Animals Committee, Department of Agriculture and Water Resources, Australian Government. 2017. Retrieved 10 May 2024.
  2. ^ Government, Northern Territory (2024-02-05). "A-Z list of weeds in the NT". nt.gov.au. Retrieved 2024-05-09.