Browse weeds by scientific name
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A-D
Ageratina adenophora (Crofton weed)
Ageratina riparia (Mistflower)
Agrostis capillaris (Brown-top bent)
Ailanthus altissima (Tree-of-heaven)
Alhagi maurorum (Camel thorn)
Alternanthera philoxeroides (Alligator weed)
Alternanthera pungens (Khaki weed)
Ambrosia artemisiifolia (Annual ragweed)
Ambrosia confertiflora (Burr ragweed)
Ambrosia psilostachya (Perennial ragweed)
Ambrosia tenuifolia (Lacy ragweed)
Amelichloa brachychaeta (Espartillo - narrow kernel)
Amelichloa caudata (Espartillo - broad kernel)
Andropogon gayanus (Gamba grass)
Annona glabra (Pond apple)
Anredera cordifolia (Madeira vine)
Araujia sericifera (Moth vine)
Ardisia elliptica (Shoebutton ardisia)
Argemone ochroleuca subsp. ochroleuca (Mexican poppy)
Arundinaria species (Arundinaria reed)
Arundo donax (Giant reed)
Asparagus species (Asparagus weeds)
Asparagus aethiopicus (Ground asparagus)
Asparagus africanus (Climbing asparagus)
Asparagus asparagoides (Bridal creeper)
Asparagus declinatus (Bridal veil creeper)
Asparagus falcatus (Sicklethorn)
Asparagus plumosus (Climbing asparagus fern)
Asparagus virgatus (Asparagus fern)
Asparagus densiflorus (Foxtail fern)
Asparagus macowanii (Ming asparagus fern)
Asparagus scandens (Snakefeather)
Asphodelus fistulosus (Onion weed)
Asystasia gangetica subsp. micrantha (Chinese violet)
Asystasia gangetica var. gangetica (Creeping foxglove)
Austrocylindropuntia species (Prickly pears - Austrocylindropuntias )
Austrocylindropuntia cylindrica (Cane cactus)
Austrocylindropuntia subulata (Eve's needle cactus)
Baccharis halimifolia (Groundsel bush)
Bambusa species (Bamboo)
Barleria prionitis (Barleria)
Barleria repens (Coral creeper)
Bassia scoparia (Kochia)
Berberis lomariifolia (Mahonia )
Bocconia frutescens (Plume poppy)
Broussonetia papyrifera (Paper mulberry)
Bryophyllum species (Mother-of-millions)
Cabomba caroliniana (Cabomba)
Caesalpinia decapetala (Mysore thorn)
Calluna vulgaris (Heather)
Canna indica (Canna lily)
Cardiospermum grandiflorum (Balloon vine)
Carduus nutans subsp. nutans (Nodding thistle)
Carthamus lanatus (Saffron thistle)
Carthamus leucocaulos (Glaucous starthistle)
Cecropia species (Cecropia)
Celtis australis (European hackberry)
Celtis sinensis (Chinese celtis)
Cenchrus biflorus (Gallon's curse)
Cenchrus echinatus (Mossman River grass)
Cenchrus longispinus (Spiny burrgrass - longispinus)
Cenchrus macrourus (African feather grass)
Cenchrus setaceus (Fountain grass)
Cenchrus spinifex (Spiny burrgrass - spinifex)
Cenchrus longisetus (Long-style feather grass)
Centaurea calcitrapa (Star thistle)
Centaurea x moncktonii (Meadow knapweed)
Centaurea solstitialis (St. Barnaby's thistle)
Centaurea stoebe subsp. micranthos (Spotted knapweed)
Cestrum nocturnum (Lady-of-the-night)
Cestrum parqui (Green cestrum)
Cestrum elegans (Red cestrum)
Chromolaena odorata (Siam weed)
Chrysanthemoides monilifera subsp. monilifera (Boneseed)
Chrysanthemoides monilifera subsp. rotundata (Bitou bush)
Cineraria lyratiformis (Cineraria)
Cinnamomum camphora (Camphor laurel)
Cirsium vulgare (Spear thistle)
Clidemia hirta (Koster's curse)
Coix lacryma-jobi (Job's tears)
Conium maculatum (Hemlock)
Conyza species (Fleabane)
Coprosma repens (Mirror bush)
Cortaderia species (Pampas grass)
Cotoneaster glaucophyllus (Cotoneaster)
Crataegus monogyna (Hawthorn)
Crocosmia x crocosmiiflora (Montbretia)
Crotalaria beddomeana (Rattlepod )
Cryptostegia grandiflora (Rubber vine)
Cuscuta species (Dodder)
Cuscuta campestris (Golden dodder)
Cylindropuntia species (Prickly pears - Cylindropuntias)
Cylindropuntia fulgida var. mamillata (Boxing glove cactus)
Cylindropuntia imbricata (Rope pear)
Cylindropuntia pallida (Hudson pear)
Cylindropuntia prolifera (Jumping cholla)
Cylindropuntia spinosior (Snake cactus)
Cylindropuntia tunicata (Brown-spined Hudson pear)
Cylindropuntia kleiniae (Klein’s cholla)
Cylindropuntia leptocaulis (Pencil cactus)
Cynara cardunculus (Artichoke thistle)
Cynoglossum creticum (Blue hound's tongue)
Cyperus bracheilema (Cyperus)
Cyrtomium falcatum (Holly fern)
Cytisus multiflorus (White Spanish broom)
Cytisus scoparius subsp. scoparius (Scotch broom)
Datura stramonium (Common thornapple)
Delairea odorata (Cape ivy)
Dipogon lignosus (Dipogon)
Dittrichia viscosa (False yellowhead)
Dolichandra unguis-cati (Cat's claw creeper)
Dovyalis afra (Kei apple)
E-K
Echinochloa polystachya (Aleman grass)
Echium italicum (Italian bugloss)
Echium plantagineum (Paterson's curse)
Echium vulgare (Viper's bugloss)
Egeria densa (Leafy elodea)
Eichhornia azurea (Anchored water hyacinth)
Eichhornia crassipes (Water hyacinth)
Elephantopus mollis (Tobacco weed)
Elodea canadensis (Elodea)
Equisetum species (Horsetails)
Eragrostis curvula (African lovegrass)
Erica lusitanica (Spanish heath)
Erythrina crista-galli (Cockspur coral tree)
Euphorbia paralias (Sea spurge)
Festuca gautieri (Bear-skin fescue)
Galenia pubescens (Galenia)
Genista linifolia (Flax-leaf broom)
Genista monspessulana (Cape broom)
Gleditsia triacanthos (Honey locust)
Gloriosa superba (Glory lily)
Gymnocoronis spilanthoides (Senegal tea plant)
Harrisia species (Harrisia cactus)
Hedychium gardnerianum (Ginger lily)
Heliotropium amplexicaule (Blue heliotrope)
Heteranthera reniformis (Kidney-leaf mud plantain)
Heteranthera zosterifolia (Water star grass)
Heterotheca grandiflora (Telegraph weed)
Hieracium murorum (Wall hawkweed)
Hydrocleys nymphoides (Water poppy)
Hydrocotyle ranunculoides (Hydrocotyl)
Hygrophila costata (Hygrophila)
Hygrophila polysperma (East Indian hygrophila)
Hymenachne amplexicaulis and hybrids (Hymenachne)
Hyparrhenia hirta (Coolatai grass)
Hyparrhenia rufa (Thatch grass)
Hypericum androsaemum (Tutsan )
Hypericum kouytchense (Goldflower)
Hypericum perforatum (St. John's wort)
Hypoestes phyllostachya (Freckle face )
Ibicella lutea (Devil's claw - yellow-flowered)
Ipomoea alba (Moonflower)
Ipomoea cairica (Morning glory - coastal)
Ipomoea indica (Morning glory - purple)
Ipomoea purpurea (Morning glory - common)
Iris pseudacorus (Yellow flag iris)
Jasminum polyanthum (Jasmine )
Jatropha gossypifolia (Bellyache bush)
Juglans ailantifolia (Japanese walnut)
Juncus acutus (Spiny rush)
Koelreuteria elegans subsp. formosana (Chinese rain tree)
L-Q
Lachenalia reflexa (Yellow soldier)
Lagarosiphon major (Lagarosiphon)
Lantana camara (Lantana)
Lantana montevidensis (Creeping lantana)
Lepidium draba (Hoary cress)
Leucaena leucocephala (Leucaena)
Leucanthemum vulgare (Ox-eye daisy)
Ligustrum lucidum (Privet - broad-leaf)
Ligustrum sinense (Privet - narrow-leaf)
Ligustrum vulgare (Privet - European)
Lilium formosanum (Taiwan lily)
Limnobium laevigatum (Frogbit )
Limnobium spongia (Spongeplant)
Limnocharis flava (Yellow burrhead)
Limonium hyblaeum (Sicilian sea lavender)
Lonicera japonica (Japanese honeysuckle)
Ludwigia longifolia (Long-leaf willow primrose)
Ludwigia peruviana (Ludwigia)
Ludwigia repens (Red ludwigia)
Lycium ferocissimum (African boxthorn)
Maclura pomifera (Osage orange)
Macroptilium atropurpureum (Siratro)
Marrubium vulgare (Horehound)
Miconia species (Miconia)
Mikania micrantha (Mikania vine)
Mimosa pigra (Mimosa)
Moraea flaccida (Cape tulip - one leaf)
Moraea miniata (Cape tulip - two-leaf)
Murraya paniculata (Murraya)
Musa species (Seeded banana)
Myriophyllum aquaticum (Parrot's feather)
Myriophyllum spicatum (Eurasian water milfoil)
Nassella charruana (Lobed needle grass)
Nassella hyalina (Cane needle grass)
Nassella neesiana (Chilean needle grass)
Nassella tenuissima (Mexican feather grass)
Nassella trichotoma (Serrated tussock)
Neptunia oleracea (Water mimosa)
Nerium oleander (Oleander)
Nymphaea mexicana (Yellow waterlily)
Ochna serrulata (Ochna)
Oenothera curtiflora (Clockweed)
Olea europaea subsp. cuspidata (African olive)
Olea europaea subsp. europaea (Feral olive)
Onopordum acanthium (Scotch thistle)
Onopordum acaulon (Stemless thistle)
Onopordum illyricum (Illyrian thistle)
Onopordum tauricum (Taurian thistle)
Opuntia species (Prickly pears - Opuntias )
Opuntia aurantiaca (Tiger pear)
Opuntia elata (Riverina pear )
Opuntia ficus-indica (Indian fig)
Opuntia humifusa (Creeping pear)
Opuntia leucotricha (Aaron's beard prickly pear)
Opuntia microdasys (Bunny ears cactus)
Opuntia monacantha (Smooth tree pear)
Opuntia robusta (Wheel cactus)
Opuntia rufida (Blind cactus)
Opuntia tomentosa (Velvety tree pear)
Opuntia schickendantzii (Chicken dance cactus)
Opuntia stricta (Common pear)
Orbea variegata (Carrion flower)
Orobanche species (Broomrapes)
Paederia foetida (Skunk vine)
Parietaria judaica (Pellitory)
Parkinsonia aculeata (Parkinsonia)
Parthenium hysterophorus (Parthenium weed)
Paspalum quadrifarium (Tussock paspalum)
Passiflora caerulea (Blue passionflower)
Passiflora suberosa (Corky passionfruit)
Passiflora tarminiana (Banana passionfruit)
Pelargonium alchemilloides (Garden geranium)
Pereskia aculeata (Leaf cactus)
Persicaria chinensis (Chinese knotweed)
Phyla canescens (Lippia)
Phyllostachys species (Rhizomatous bamboo)
Physalis hederifolia (Prairie ground cherry)
Physalis longifolia (Perennial ground cherry)
Picnomon acarna (Soldier thistle)
Pilosella species (Hawkweeds - Pilosellas)
Pilosella aurantiaca (Orange hawkweed)
Pilosella officinarum (Mouse-ear hawkweed)
Pilosella piloselloides (King devil hawkweed)
Piptochaetium montevidense (Uruguayan rice grass)
Pistia stratiotes (Water lettuce)
Pithecoctenium crucigerum (Monkey's comb )
Praxelis clematidea (Praxelis)
Proboscidea louisianica (Devil's claw - purple-flowered)
Prosopis species (Mesquite)
Psidium cattleyanum (Cherry guava)
Pueraria lobata (Kudzu)
Pyracantha species (Firethorn)
R-Z
Raphanus raphanistrum (Wild radish)
Retama raetam (White weeping broom)
Rhaphiolepis indica (Indian hawthorn)
Rhaponticum repens (Creeping knapweed)
Ricinus communis (Castor oil plant)
Robinia pseudoacacia (Black locust)
Rosa rubiginosa (Sweet briar)
Rubus alceifolius (Giant bramble)
Rubus fruticosus species aggregate (Blackberry)
Rubus niveus (White blackberry)
Rumex sagittatus (Turkey rhubarb)
Rumex hypogaeus (Spiny emex)
Sagittaria calycina var. calycina (Arrowhead)
Sagittaria platyphylla (Sagittaria)
Salix species (Willows)
Salix cinerea (Grey sallow)
Salix nigra (Black willow)
Salpichroa origanifolia (Pampas lily of the valley)
Salvia reflexa (Mintweed)
Salvinia minima (Water spangles)
Salvinia molesta (Salvinia)
Schefflera actinophylla (Umbrella tree)
Schinus molle (Peppercorn)
Schinus terebinthifolia (Broad-leaf pepper tree)
Scolymus hispanicus (Golden thistle)
Scolymus maculatus (Spotted golden thistle)
Searsia lancea (Willow rhus)
Senecio glastifolius (Holly leaved senecio)
Senecio jacobaea (Ragwort)
Senecio madagascariensis (Fireweed)
Senegalia catechu (Cutch tree)
Senegalia pennata subsp. insuavis (Cha-om)
Senna pendula var. glabrata (Cassia )
Senna septemtrionalis (Winter senna )
Setaria palmifolia (Palm grass)
Sisymbrium runcinatum (African turnip weed - western)
Sisymbrium thellungii (African turnip weed - eastern)
Solanum chrysotrichum (Giant devil's fig)
Solanum elaeagnifolium (Silverleaf nightshade)
Solanum mauritianum (Tobacco bush)
Solanum rostratum (Buffalo burr)
Solanum seaforthianum (Brazilian nightshade)
Solanum sisymbriifolium (Sticky nightshade)
Solanum torvum (Devil's fig)
Solanum viarum (Tropical soda apple)
Sorghum species hybrid cultivar "Silk" (Silk forage sorghum)
Sorghum x almum (Columbus grass)
Sorghum halepense (Johnson grass)
Spartium junceum (Spanish broom)
Sphagneticola trilobata (Singapore daisy)
Sporobolus fertilis (Giant Parramatta grass)
Sporobolus pyramidalis (Giant rat's tail grass)
Stachytarpheta cayennensis (Cayenne snakeweed)
Stratiotes aloides (Water soldier)
Striga species (Witchweeds)
Syagrus romanzoffiana (Cocos palm )
Tamarix aphylla (Athel pine)
Tanacetum vulgare (Common tansy)
Tecoma stans (Yellow bells)
Tetrapanax papyrifer (Rice paper plant)
Themeda quadrivalvis (Grader grass)
Thunbergia grandiflora (Laurel clock vine)
Tillandsia usneoides (Spanish moss )
Tipuana tipu (Rosewood)
Tithonia diversifolia (Japanese sunflower)
Toxicodendron succedaneum (Rhus tree)
Tradescantia fluminensis (Trad)
Trapa species (Water caltrop)
Triadica sebifera (Chinese tallow tree)
Trianoptiles solitaria (Subterranean cape sedge)
Typha latifolia (Cumbungi)
Ulex europaeus (Gorse)
Vachellia farnesiana (Mimosa bush)
Vachellia karroo (Karoo acacia)
Vachellia nilotica (Prickly acacia)
Vinca major (Blue periwinkle )
Xanthium cavanillesii (South American burr)
Xanthium italicum (Italian cockleburr)
Xanthium occidentale (Noogoora burr)
Xanthium orientale (Californian burr)
Xanthium spinosum (Bathurst burr)
Zantedeschia aethiopica (Arum lily)
