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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)
Austrocylindropuntia
species
(Prickly pears - Austrocylindropuntias )
Austrocylindropuntia
cylindrica
(Cane cactus)
Austrocylindropuntia
subulata
(Eve's needle cactus)
Azolla
species
(Azolla)
Baccharis
halimifolia
(Groundsel bush)
Bambusa
species
(Bamboo)
Barleria
prionitis
(Barleria)
Barleria
repens
(Coral creeper)
Bassia
scoparia
(Kochia)
Berberis
lomariifolia
(Mahonia )
Bocconia
frutescens
(Plume poppy)
Brassica
barrelieri
subsp.
oxyrrhina
(Smooth-stemmed turnip)
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)
Cassinia
sifton
(Sifton bush)
Cecropia
species
(Cecropia)
Celtis
australis
(European hackberry)
Celtis
sinensis
(Chinese celtis)
Cenchrus
biflorus
(Gallon's curse)
Cenchrus
brownii
(Fine-bristled burr grass)
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
(Black 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
arvense
(Perennial thistle)
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
tunicata
(Brown-spined Hudson pear)
Cynara
cardunculus
(Artichoke thistle)
Cynoglossum
creticum
(Blue hound's tongue)
Cyperus
bracheilema
(Cyperus)
Cyperus
esculentus
(Yellow nutgrass)
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
caffra
(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)
Helianthus
ciliaris
(Texas blueweed)
Heliotropium
amplexicaule
(Blue heliotrope)
Heteranthera
reniformis
(Kidney-leaf mud plantain)
Heteranthera
zosterifolia
(Water star grass)
Heterotheca
grandiflora
(Telegraph weed)
Hieracium
species
(Hawkweeds - Hieraciums)
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)
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)
Jasminum
polyanthum
(Jasmine )
Jatropha
gossypiifolia
(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)
Lemna
disperma
(Duckweed)
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)
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)
Nephrolepis
cordifolia
(Fishbone fern)
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
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)
Oryza
rufipogon
(Red rice)
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 )
Pittosporum
undulatum
(Sweet pittosporum)
Praxelis
clematidea
(Praxelis)
Proboscidea
louisianica
(Devil's claw - purple-flowered)
Prosopis
species
(Mesquite)
Psidium
cattleyanum
(Cherry guava)
Pteridium
esculentum
(Bracken fern)
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
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
molesta
(Salvinia)
Schefflera
actinophylla
(Umbrella tree)
Schinus
species
(Peppercorn)
Schinus
terebinthifolius
(Broad-leaf pepper tree)
Sclerolaena
birchii
(Galvanised burr)
Sclerolaena
muricata
(Black roly-poly)
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)
Sonchus
arvensis
(Corn sowthistle)
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)