Weed Identification

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Significant weeds known to occur, or with the potential to occur, in the region you have selected include the following 293 plants.

- plant is included in the WEEDeck series of cards.
More information about WEEDeck is available from Sainty & Associates Pty. Ltd.

Sort by scientific name
A Nodding Thistle
    Carduus thoermeri

African Boxthorn
    Lycium ferocissimum

African Feather Grass
    Pennisetum macrourum

African Lovegrass
    Eragrostis curvula

African Tulip Tree
    Spathodea campanulata

African daisy
    Senecio pterophorus

African olive
    Olea europaea subspecies cuspidata

African weed-orchid
    Disa bracteata

Algaroba
    Prosopis pallida

Alisma
    Alisma lanceolatum

Alkali Sida
    Malvella leprosa

Alligator Flag
    Thalia geniculata

Alligator Weed
    Alternanthera philoxeroides

American Rat’s Tail Grass
    Sporobolus jacquemontii

Annual Ragweed
    Ambrosia artemisiifolia

Apple of Sodom
    Solanum linnaeanum

Ardisia
    Ardisia elliptica

Arrowhead
    Sagittaria montevidensis

Artichoke Thistle
    Cynara cardunculus

Arum Lily
    Zantedeschia aethiopica

Asparagus Fern
    Asparagus scandens

Asparagus
    Asparagus officinalis

Asthma weed, Pellitory
    Parietaria judaica

Athel Pine
    Tamarix aphylla

Austroeupatorium
    Austroeupatorium inulaefolium

Balloon Vine
    Cardiospermum grandiflorum

Barleria
    Barleria prionitis

Bathurst Burr
    Xanthium spinosum

Bellyache Bush
    Jatropha gossypiifolia

Bitou Bush
    Chrysanthemoides monilifera ssp. rotundata

Black Knapweed
    Centaurea nigra

Black Willow
    Salix nigra

Blackberry nightshade
    Solanum nigrum

Blackberry
    Rubus fruticosus species aggregate

Blade Apple
    Pereskia aculeata

Blue Heliotrope
    Heliotropium amplexicaule

Blue Morning Glory
    Ipomoea indica

Blue Periwinkle
    Vinca major

Bluebell Creeper
    Billardiera heterophylla

Boneseed
    Chrysanthemoides monilifera ssp. monilifera

Box Elder
    Acer negundo

Branched Broomrape
    Orobanche ramosa

Brazilian Cherry
    Eugenia uniflora

Bridal Creeper
    Asparagus asparagoides

Bridal Veil
    Asparagus declinatus

Brillantaisia
    Brillantaisia Lamium

Broad-Leaved Pepper Tree
    Schinus terebinthifolius

Broad-Leaved Privet
    Ligustrum lucidum

Broom (Scotch)
    Cytisus scoparius

Buffalo burr
    Solanum rostratum

Buffel Grass
    Cenchrus ciliaris

Bulbil Watsonia
    Watsonia meriana var. bulbillifera

Cabomba
    Cabomba caroliniana

Cadagi
    Corymbia torelliana

Calodendron
    Salix xcalodendron

Calotrope
    Calotropis procera

Caltrop
    Tribulus terrestris

Camasey De Felpa
    Miconia racemosa

Camel Thorn
    Alhagi maurorum

Camphor Laurel
    Cinnamomum camphora

Candle bush
    Senna alata

Cane Needlegrass
    Nassella hyalina

Capeweed
    Arctotheca calendula

Caribbean Pine
    Pinus caribaea

Caribbean Stylo
    Stylosanthes hamata

Castor Oil Plant
    Ricinus communis

Cat's Claw Creeper
    Macfadyena unguis-cati

Caulerpa
    Caulerpa taxifolia

Celery Leaf Buttercup
    Ranunculus sceleratus subsp. sceleratus

Chilean Needlegrass
    Nassella neesiana

Chilean Pencil Willow
    Salix humboldtiana 'Pyramidalis '

Chinee Apple
    Ziziphus mauritiana

Chinese Celtis
    Celtis sinensis

Chinese Rain Tree
    Koelreuteria formosana

Chinese Violet (a form of)
    Asystasia gangetica ssp. micrantha

Chinese Violet
    Asystasia gangetica subsp. gangetica

Climbing Asparagus
    Asparagus plumosus

Coastal Morning Glory
    Ipomoea cairica

Coffee senna
    Senna occidentalis

Common Name
    Scientific Name

Common Osier
    Salix viminalis

Common Thornapple
    Datura stramonium

Common heliotrope
    Heliotropium europaeum

Common sowthistle
    Sonchus oleraceus

Coolatai Grass
    Hyparrhenia hirta

Coral cactus
    Cylindropuntia fulgida var. mamillata

Corky Passionfruit
    Passiflora suberosa

Cotoneaster
    Cotoneaster glaucophyllus

Cow Itch
    Mucuna pruriens

Crack Willow
    Salix fragilis

Creeping Knapweed
    Acroptilon repens

Crofton Weed
    Ageratina adenophora

Crow Garlic
    Allium vineale

Cyperus teneristolon
    Cyperus teneristolon

Date Palm
    Phoenix dactylifera

Dense Waterweed
    Egeria densa

Devil's Claw
    Martynia annua

Devil's Rope Cactus
    Cylindropuntia imbricata

Downy Thornapple
    Datura inoxia

Duranta
    Duranta erecta

Dutchman’s Pipe
    Aristolochia elegans

Elephant Grass
    Pennisetum purpureum

Elodea
    Elodea canadensis

Espartillo
    Amelichloa brachychaeta

Eurasian Watermilfoil
    Myriophyllum spicatum

Fat hen
    Chenopodium album

Fierce Thornapple
    Datura ferox

Firethorn
    Pyracantha spp.

Fireweed
    Senecio madagascariensis

Fishbone Fern
    Nephrolepis cordifolia

Flaxleaf Fleabane
    Conyza bonariensis

Fringed Spider Flower
    Cleome rutidosperma

Galenia
    Galenia pubescens

Gamba Grass
    Andropogon gayanus

Giant Bramble
    Rubus alceifolius

Giant Parramatta Grass
    Sporobolus fertilis

Giant Rat's Tail Grass
    Sporobolus pyramidalis

Giant Rat's Tail Grass
    Sporobolus natalensis

Giant Sensitive Plant
    Mimosa diplotricha

Glory Lily
    Gloriosa superba

Glush Weed
    Hygrophila costata

Glycine
    Neonotonia wightii

Golden Weeping Willow
    Salix xsepulcralis var. chrysocoma

Golden Willow
    Salix alba var. vitellina

Golden dodder
    Cuscuta campestris

Gorse
    Ulex europaeus

Grader grass
    Themeda quadrivalvis

Green Cestrum
    Cestrum parqui

Green-Leaf Desmodium
    Desmodium intortum

Grey Sallow
    Salix cinerea

Ground Asparagus
    Asparagus aethiopicus

Groundsel Bush
    Baccharis halimifolia

Guinea Grass
    Megathyrus maximus

Harrisia Cactus
    Harrisia martinii

Harungana
    Harungana madagascariensis

Hawthorn
    Crataegus monogyna

Heather
    Calluna vulgaris

Hemlock
    Conium maculatum

Himalayan Honeysuckle
    Leycesteria formosa

Hoary Cress
    Cardaria draba

Holly-Leaved Senecio
    Senecio glastifolius

Honey Locust Tree
    Gleditsia triacanthos

Horehound
    Marrubium vulgare

Horsetail (common)
    Equisetum arvense

Horsetail
    Equisetum hyemale

Hudson Pear
    Cylindropuntia rosea

Hydrocotyle
    Hydrocotyle ranunculoides

Hyptis
    Hyptis suaveolens

Ivy Gourd
    Coccinia grandis

Japanese Honeysuckle
    Lonicera japonica

Kahili Ginger
    Hedychium gardnerianum

Kapok Bush
    Aerva javanica

Karoo Thorn
    Acacia karroo

Khaki weed
    Alternanthera pungens

Kidneyleaf Mudplantain
    Heteranthera reniformis

King Devil
    Hieracium praealtum

Kochia
    Bassia scoparia

Koster’s Curse
    Clidemia hirta

Kudzu
    Pueraria montana var. lobata

Lagarosiphon
    Lagarosiphon major

Lantana
    Lantana camara

Laurel Clock Vine
    Thunbergia laurifolia

Leucaena
    Leucaena leucocephala

Limnocharis
    Limnocharis flava

Lion's Tail
    Leonotis nepetifolia

Lippia
    Phyla canescens

Lobed Needlegrass
    Nassella charruana

Loblolly Pine
    Pinus taeda

Longleaf Ludwigia
    Ludwigia longifolia

Longstyle feather grass
    Pennisetum villosum

Madeira Vine
    Anredera cordifolia

Madras Thorn
    Pithecellobium dulce

Mesquite
    Prosopis pallida

Mexican Feather Grass
    Nassella tenuissima

Mexican Sunflower
    Tithonia diversifolia

Mexican poppy
    Argemone ochroleuca

Miconia nervosa
    Miconia nervosa

Miconia
    Miconia calvescens

Mikania
    Mikania micrantha

Milkweed
    Euphorbia heterophylla

Mimosa bush
    Acacia farnesiana

Mimosa
    Mimosa pigra

Mission Grass
    Pennisetum polystachion

Mistflower
    Ageratina riparia

Montpellier Broom
    Genista monspessulana

Mossman River Grass
    Cenchrus echinatus

Moth Plant
    Araujia sericifera

Mother-In-Law’s Tongue
    Sanseviera trifasciata

Mother-of-Millions
    Bryophyllum delagoense

Mouse-Ear Hawkweed
    Hieracium pilosella

Murraya
    Murraya paniculata

Myrtle-Leaf Milkwort
    Polygala myrtifolia

Narrow-Leaf Cotton Bush
    Gomphocarpus fruticosus

New Zealand Hybrid Willow
    Salix matsudana xSalix alba hybrids

Nodding Thistle
    Carduus nutans

Noogoora Burr
    Xanthium occidentale

Ochna
    Ochna serrulata

Olive Hymenachne
    Hymenachne amplexicaulis

One-Leaf Cape Tulip
    Moraea flaccida

Orange Hawkweed
    Hieracium aurantiacum

Ornamental Asparagus
    Asparagus africanus

Ox-Eye Daisy
    Leucanthemum vulgare

Paddy's lucerne
    Sida rhombifolia

Para Grass
    Urochloa mutica

Parkinsonia
    Parkinsonia aculeata

Parodi Spike Rush
    Eleocharis parodii

Parramatta Grass
    Sporobolus africanus

Parrot’s Feather
    Myriophyllum aquaticum

Parthenium Weed
    Parthenium hysterophorus

Paterson’s Curse
    Echium plantagineum

Paulownia
    Paulownia tomentosa

Perennial Ragweed
    Ambrosia psilostachya

Perennial Thistle
    Cirsium arvense

Physic nut
    Jatropha curcas

Pink Pampas Grass
    Cortaderia jubata

Plumerillo
    Jarava plumosa

Pond Apple
    Annona glabra

Praxelis
    Praxelis clematidea

Prickly Acacia
    Acacia nilotica subspecies indica

Prickly Pear (common)
    Opuntia stricta

Prickly lettuce
    Lactuca serriola

Primrose Willow
    Ludwigia peruviana

Purple Osier
    Salix purpurea

Queen Palm, Cocos Palm
    Syagrus romanzoffiana

Ragwort
    Senecio jacobaea

Rambling Dock
    Acetosa sagittata

Reichardtii
    Salix xreichardtii

Rubber Vine
    Cryptostegia grandiflora

Rubber vine (2)
    Cryptostegia madagascariensis

Ruby Dock
    Acetosa vesicaria

Saffron Thistle
    Carthamus lanatus

Sagittaria
    Sagittaria platyphylla

Salvinia
    Salvinia molesta

Scotch Thistle
    Onopordum acanthium

Sea Rush/Spiny Rush
    Juncus kraussii/Juncus acutus

Senegal Tea
    Gymnocoronis spilanthoides

Serrated Tussock
    Nassella trichotoma

Siam Weed
    Chromolaena odorata

Sicklepod
    Senna obtusifolia

Silver-Leaf Desmodium
    Desmodium uncinatum

Silverleaf Nightshade
    Solanum elaeagnifolium

Singapore Daisy
    Sphagneticola trilobata

Skeleton Weed
    Chondrilla juncea

Slash Pine
    Pinus elliottii

Small-Leaved Privet
    Ligustrum sinense

Small-flowered mallow
    Malva parviflora

Snakeweeds
    Stachytarpheta spp.

Sorrel
    Acetosella vulgaris

Spear thistle
    Cirsium vulgare

Spiked Pepper
    Piper aduncum

Spiny Burrgrass
    Cenchrus longispinus

Spiny Rush
    Juncus acutus

Spiny emex
    Emex australis

Spinyhead Sida
    Sida acuta

St John's Wort
    Hypericum perforatum

Star burr
    Acanthospermum hispidum

Sticky Cape Gooseberry
    Physalis viscosa

Stinking Passionflower
    Passiflora foetida

Subterranean Cape Sedge
    Trianoptiles solitaria

Sweet Briar
    Rosa rubiginosa

Telegraph Weed
    Heterotheca grandiflora

Thunbergia
    Thunbergia grandiflora

Tiger Pear
    Opuntia aurantiaca

Tobacco Weed
    Elephantopus mollis

Toetoe
    Cortaderia richardii

Torpedo Grass
    Panicum repens

Tortured Willow
    Salix matsudana 'Tortuosa'

Tree-of-Heaven
    Ailanthus altissima

Tropical Chickweed
    Drymaria cordata

Trumpet Tree
    Cecropia peltata

Two-Leaf Cape Tulip
    Moraea miniata

Variegated thistle
    Silybum marianum

Velvet Mesquite
    Prosopis velutina

Velvet tree pear
    Opuntia tomentosa

Wandering Jew
    Tradescantia fluminensis

Ward's Weed
    Carrichtera annua

Water Caltrop
    Trapa natans

Water Hyacinth
    Eichhornia crassipes

Water Lettuce
    Pistia stratiotes

Water Mimosa
    Neptunia oleracea

Water Soldier
    Stratiotes aloides

Weeping Willow
    Salix babylonica

Western Cape form of Bridal Creeper
    Asparagus asparagoides

White Crack Willow
    Salix xrubens

White Spanish Broom
    Cytisus multiflorus

White Thunbergia
    Thunbergia fragrans

White Willow
    Salix alba var. alba

Wild Radish
    Raphanus raphanistrum

Witchweed
    Striga asiatica

Yellow Bells
    Tecoma stans

Yellow Burweed
    Amsinckia species

Yellow Oleander
    Thevetia peruviana

Yellow Waterlily
    Nymphaea mexicana

Australia >

      1 - 10 of 293 brief descriptions - Click on a plant image or name for a comprehensive description.


A Nodding Thistle - Carduus thoermeri

First recorded in Queensland near Gympie, but has spread from this area. Only known from Queensland. It appears to grow in warmer areas than C. nutans in Australia. A pasture weed in some areas of south-eastern Queensland and a serio... more


African Boxthorn - Lycium ferocissimum

Introduced as a garden or hedge plant in the mid 1800s. Now a serious weed, particularly on neglected land in arid temperate Australia. May produce thickets that become refuges for feral animals.... more


African Feather Grass - Pennisetum macrourum

Possibly introduced to Australia in hay brought back with horses after the Boer War. Spring and summer growing grass that is drought resistant, has low palatability, harbours rabbits, is a fire hazard and restricts access to watercourses. O... more


African Lovegrass - Eragrostis curvula

A variable species complex. Valued for soil conservation and fodder or regarded as a serious weed. Introduced for soil stabilisation. Common on sandy soils; capable of resisting drought and heavy grazing. Successfully competes with low grow... more


African Tulip Tree - Spathodea campanulata

Widely planted as an ornamental and shade tree in tropical and sub-tropical areas. Young trees are frost sensitive. Reported spreading in rainforest near Darwin and in northern coastal Queensland. On Pacific islands it invades abandoned agr... more


African daisy - Senecio pterophorus

Introduced to SA at Port Lincoln in ballast, in about 1930. Now well established in the Eyre Peninsula, the Adelaide Hills and south-eastern SA and present and increasing in Victoria and NSW. Cultivated as an ornamental. Readily invades are... more


African olive - Olea europaea subspecies cuspidata

A locally common weed of roadsides, neglected land and stream banks. African Olive produces fruit that are usually smaller and less fleshy than those of plants cultivated for edible olives and olive oil.... more


African weed-orchid - Disa bracteata

The species is self-pollinating. It forms dense colonies and replaces native ground flora where it occurs in Western Australia, South Australia and Victoria. First herbarium specimens were collected in Western Australia in 1944, in South Au... more


Algaroba - Prosopis pallida

Widespread across northern inland Australia. Forms dense thorny thickets and displaces other plants. Stout thorns injure animals while thickets restrict access to water and hinder mustering. Deep rooted and survives long periods of drought.... more


Alisma - Alisma lanceolatum

Thrives in shallow, slow-moving or stationary, nutrient rich water. A serious weed of rice in New South Wales.... more

Australia >

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