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.
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.
Lists
Declared weeds +Botanical nameCommon nameDeclaration classAlternanthera philoxeroidesAlligator weedAAndropogon gayanusGamba grassA, BAnnona glabraPond appleAAsphodelus fistulosusOnion weed AAustrocylindropuntia spp.Opuntioid cacti ABarleria prionitisBarleria ACabomba spp.CabombaAChrysanthemoides moniliferaBitou bush, boneseed ACryptostegia spp.Rubber vinesACylindropuntia spp.Opuntioid cacti, rope cactiADalbergia sissooLongspine thornappleADatura feroxDalbergia ADolichandra unguis-cati syn. Macfadyena unguis-catiCat's claw creeper AEchium plantagineumPaterson's curseAEichhornia crassipesWater hyacinthAHyparrhenia rufaThatch grassAJatropha curcasPhysic nutAJatropha gossypiifoliaBellyache bushA, BLycium ferocissimumAfrican boxthornAMartynia annuaDevil's claw AMimosa pigraMimosaA, BMyriophyllum aquaticumParrot's featherANassella neesianaChilean needle grassANassella tenuissimaMexican feather grassANassella trichotomaSerrated tussockANeptunia plenaWater mimosaANeptunia oleraceaeWater mimosaAOpuntia spp.Prickly pearsAParthenium hysterophorusParthenium weedAPereskia aculeataLeaf cactusAProsopis spp.MesquiteARubus fruticose agg.Blackberry ASagittaria platyphyllaSagittariaASalix spp.WillowsASchinus terebinthifoliusBrazilian pepperA, BSenegalia catechu syn. Acacia catechuCutch treeATamarix aphyllaAthel pineA, BUlex europaeusGorseAVachellia nilotica syn. Acacia nilotica Prickly acaciaA Ziziphus mauritianaChinee apple, Indian jujubeAAcanthospermum hispidumStar burr, goat’s headBAlternanthera pungensKhaki weedBArgemone ochroleucaMexican poppyBAzadirachta indicaNeemBCalotropis proceraRubber bushBCarthamus lanatusSaffron thistleBCenchrus echinatusMossman River grassBCenchrus polystachios Syn. Pennisetum polystachionMission grass (perennial)BCenchrus setaceusFountain grassBEmex australisSpiny emexBHymenachne amplexicaulisOlive hymenachneBHyptis capitataKnob weedBHyptis suaveolensHyptisBLantana camaraCommon lantanaBLantana montevidensisCreeping lantanaBLeonotis nepetifoliaLion's tailBMimosa pudicaCommon sensitive plantBParkinsonia aculeataParkinsoniaBPistia stratiotesWater lettuceBRicinus communisCastor oil plantBSalvinia molestaSalviniaBSenna alataCandle bushBSenna obtusifoliaSicklepodBSenna occidentalisCoffee sennaBSida acutaSpinyhead sidaBSida cordifoliaFlannel weedBSida rhombifoliaPaddy's lucerneBStachytarpheta spp.Snake weedsBThemeda quadrivalvisGrader grassBTribulus cistoidesCaltropBTribulus terrestrisCaltropBXanthium strumarium Syn. Xanthium occidentaleNoogoora burrBXanthium spinosumBathurst burrBAcroptilon repensCreeping knapweedCAgeratina ripariaMistflowerCAmaranthus dubiusChinese spinachCAmbrosia artemisiifoliaAnnual ragweedCAmbrosia psilostachyaPerennial ragweedCAnredera cordifoliaMadeira vineCAsparagus asparagoidesBridal creeperCAsparagus scandensAsparagus fernCAsparagus declinatusBridal veilCAsparagus aethiopicusGround asparagusCAsparagus africanusClimbing asparagusCAsparagus plumosus syn. Asparagus setaceusClimbing asparagus fermCAustroeupatorium inulaefoliumAustroeupatoriumCBaccharis halimifoliaGroundsel bushCBoerhavia erectaErect spiderlingCBrachiaria paspaloidesCommon signal grassCChromolaena odorataSiam weedCClidemia hirtaKoster's curseCCoix aquaticaJob's tearsCCroton hirtusHairy crotonCCytisus scopariusScotch broomCDatura spp.ThornapplesCDigitaria fuscescensCommon crabgrassCDigitaria insularisSourgrassCDiodia sarmentosaTropical buttonweedCEchinochloa glabrescensBarnyard grassCEchinochloa stagninaBurgu milletCEgeria densaDense waterweedCElodea canadensisCanadian pondweedCEquisetum spp.HorsetailsCEriocaulon truncatumShort pipewortCEriocereus martiniiHarrisia cactusCEriochloa polystachyaCarib grassCFimbristylis umbellarisGlobular fimbristylisCGenista linifoliaFlax-leaved broomCGenista monspessulanaMontpellier broomCHybanthus attenuatusWestern greenvioletCHyptis brevipesLesser roundweedCIschaemum timorenseCentipede grassCKochia scoparia syn. Bassia scopariaBurning bushCLagarosiphon major LagarosiphonCLeptochloa chinensisRed sprangletop, feathergrassCLeptochloa paniceaSprangletop CLimnobium laevigatumAmazon frogbitCLimnocharis flavaYellow burrhead, yellow sawah lettuceCMiconia spp.Velvet treeCMikania cordata Heartleaf hempvine CMikania micrantha Mikania, mile-a-minuteCMimosa invisaGiant sensitive plantCMyriophyllum spicatumEurasian watermilfoilCOrobanche spp.BroomrapesCPaederia foetidaLesser Malayan stinkwortCPiper aduncumSpiked pepperCRhodomyrtus tomentosaDowny rose myrtleCRotala indicaIndian toothcupCSacciolepis interruptaCupscale grassCSalvinia cucullataSalvinia CSalvinia natansSalviniaCSchoenoplectus juncoidesRock bulrushCScirpus maritimus Syn. Bolboschoenus maritimusSea clubrushCSenecio madagascariensisFireweedCSolanum elaeagnifoliumSilver leaf nightshadeCSorghum halepense Johnson grassCSpermacoce mauritiana syn. Spermacoce exilisPacific false buttonweedCStriga spp.Witchweeds CTrapa spp.Floating water chestnuts CXanthium spp. BurrsCCenchrus ciliarisBuffel grassYet to be declared
See also
Weeds of National Significance Invasive species in Australia
References