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Invasive.org - Center for Invasive Species and Ecosystem Health

State Noxious Weeds

The following species have been listed on a noxious weed law in North America. For more information on each species, including the listing sources, images, and publication links, click on the species.

598 Species


Subject Name Scientific Name Family Order
velvetleaf Abutilon theophrasti Medik Malvaceae Malvales
kangaroothorn Acacia paradoxa DC. Fabaceae (Leguminosae) Fabales
New Zealand Burr Acaena magellanica (Lam.) Vahl Rosaceae Rosales
biddy-biddy Acaena novae-zelandica Kirk Rosaceae Rosales
pale biddy-biddy Acaena pallida (T. Kirk) J. W. Dawson Rosaceae Rosales
Amur maple Acer ginnala Maxim. Aceraceae Sapindales
Norway maple Acer platanoides L. Aceraceae Sapindales
Sycamore maple Acer pseudoplatanus L. Aceraceae Sapindales
punagrass Achnatherum brachychaetum (Godr.) Barkworth Poaceae Cyperales
Acroptilon repens (L.) DC. Asteraceae Asterales
jointed goatgrass Aegilops cylindrica Host Poaceae Cyperales
ovate goatgrass Aegilops geniculata Roth Poaceae Cyperales
barb goatgrass Aegilops triuncialis L Poaceae Cyperales
aeginetia Aeginetia spp. L. Orobanchaceae Scrophulariales
goutweed Aegopodium podagraria L. Apiaceae Apiales
rough jointgrass Aeschynomene rudis Benth Fabaceae (Leguminosae) Fabales
northern jointvetch Aeschynomene virginica (L.) B.S.P Fabaceae (Leguminosae) Fabales
croftonweed Ageratina adenophora (Spreng.) King & H.E. Robins. Asteraceae Asterales
corn cockle Agrostemma githago L Caryophyllaceae Caryophyllales
tree-of-heaven Ailanthus altissima (P. Mill.) Swingle Simaroubaceae Sapindales
mimosa Albizia julibrissin Durazz. Fabaceae (Leguminosae) Fabales
alectra Alectra spp. Thunb. Orobanchaceae Scrophulariales
camelthorn Alhagi maurorum Medik Fabaceae (Leguminosae) Fabales
garlic mustard Alliaria petiolata (Bieb.) Cavara & Grande Brassicaceae Capparales
wild onion Allium canadense L. Amaryllidaceae Asparagales
white garlic Allium neapolitanum Cirillo Amaryllidaceae Asparagales
panicled onion Allium paniculatum L. Amaryllidaceae Asparagales
onions Allium spp. L. Amaryllidaceae Asparagales
wild garlic Allium vineale L. Amaryllidaceae Asparagales
slender meadow foxtail Alopecurus myosuroides Huds. Poaceae Cyperales
alligatorweed Alternanthera philoxeroides (Mart.) Griseb. Amaranthaceae Caryophyllales
sessile joyweed Alternanthera sessilis (L.) R. Br. ex DC. Amaranthaceae Caryophyllales
joyweed Alternanthera spp. Forssk. Amaranthaceae Caryophyllales
common ragweed Ambrosia artemisiifolia L. Asteraceae Asterales
annual ragweed Ambrosia artemisiifolia var. elatior (L.) Descourtils Asteraceae Asterales
woollyleaf bursage Ambrosia grayi (A. Nels.) Shinners Asteraceae Asterales
skeletonleaf bursage Ambrosia tomentosa Nutt. Asteraceae Asterales
giant ragweed Ambrosia trifida L. Asteraceae Asterales
indigobush Amorpha fruticosa L. Fabaceae (Leguminosae) Fabales
porcelain-berry Ampelopsis brevipedunculata (Maxim.) Trautv. Vitaceae Rhamnales
small bugloss Anchusa arvensis (L.) Bieb Boraginaceae Lamiales
common bugloss Anchusa officinalis L. Boraginaceae Lamiales
spurred anoda Anoda cristata (L.) Schlecht Malvaceae Malvales
corn chamomile Anthemis arvensis L. Asteraceae Asterales
stinking chamomile Anthemis cotula L Asteraceae Asterales
wild chervil Anthriscus sylvestris (L.) Hoffmann Apiaceae Apiales
white bladderflower Araujia sericifera Brot. Asclepiadaceae Gentianales
common burdock Arctium minus Bernh. Asteraceae Asterales
capeweed Arctotheca calendula (L.) Levyns Asteraceae Asterales
shoebutton ardisia Ardisia elliptica Thunb Myrsinaceae Primulales
absinth wormwood Artemisia absinthium L. Asteraceae Asterales
small carpetgrass, joint-head grass Arthraxon hispidus (Thunb.) Makino Poaceae Cyperales
giant reed Arundo donax L. Poaceae Cyperales
onionweed Asphodelus fistulosus Linnaeus Liliaceae Liliales
wild oat Avena fatua L. Poaceae Cyperales
sterile oat Avena sterilis Linnaeus Poaceae Cyperales
feathered mosquito-fern Azolla pinnata R. Brown Azollaceae Hydropteridales
Monnier waterhyssop Bacopa monnieri (L.) Pennell Scrophulariaceae Scrophulariales
yellow rocket Barbarea vulgaris Ait. f. Brassicaceae Capparales
Japanese barberry Berberis thunbergii DC. Berberidaceae Ranunculales
common barberry Berberis vulgaris L Berberidaceae Ranunculales
hoary alyssum Berteroa incana (L.) DC Brassicaceae Capparales
perennial false-brome Brachypodium sylvaticum (Huds.) Beauv. Poaceae Cyperales
Indian mustard Brassica juncea (L.) Czern Brassicaceae Capparales
black mustard Brassica nigra (L.) W.D.J. Koch Brassicaceae Capparales
mustard Brassica spp. Brassicaceae Capparales
African mustard Brassica tournefortii Gouan Brassicaceae Capparales
bald brome Bromus racemosus L. Poaceae Cyperales
rye brome Bromus secalinus L. Poaceae Cyperales
cheatgrass Bromus tectorum L. Poaceae Cyperales
white bryony Bryonia alba L. Cucurbitaceae Violales
butterflybush Buddleja davidii Franch. Buddlejaceae Scrophulariales
hare's ear Bupleurum rotundifolium L. Apiaceae Apiales
flowering-rush Butomus umbellatus L. Butomaceae Alismatales
Carolina fanwort Cabomba caroliniana A. Gray Cabombaceae Nymphaeales
European waterstarwort Callitriche stagnalis Scop. Callitrichaceae Callitrichales
hedge bindweed Calystegia sepium (L.) R. Br Convolvulaceae Solanales
hedge false bindweed Calystegia sepium ssp. sepium (L.) R. Br. Convolvulaceae Solanales
marijuana Cannabis sativa L Cannabaceae Urticales
narrowleaf bittercress Cardamine impatiens L. Brassicaceae Capparales
Cardaria draba (L.) Desv Brassicaceae Capparales
hairy whitetop Cardaria pubescens (C.A. Mey.) Brassicaceae Capparales
balloonvine Cardiospermum halicacabum L. Sapindaceae Sapindales
spiny plumeless thistle Carduus acanthoides L. Asteraceae Asterales
curly plumeless thistle Carduus crispus L. Asteraceae Asterales
musk thistle Carduus nutans L. Asteraceae Asterales
nodding plumeless thistle Carduus nutans spp. leiophyllus (Petrovic) Stojanov & Stef Asteraceae Asterales
Italian plumeless thistle Carduus pycnocephalus L. Asteraceae Asterales
plumeless thistle Carduus spp. L. Asteraceae Asterales
slenderflower thistle Carduus tenuiflorus W. Curtis Asteraceae Asterales
Japanese sedge Carex kobomugi Ohwi Cyperaceae Cyperales
woolly distaff thistle Carthamus lanatus L. Asteraceae Asterales
woolly distaff thistle Carthamus lanatus ssp. creticus (L.) Holmboe Asteraceae Asterales
whitestem distaff thistle Carthamus leucocaulos Sibith. & Sm. Asteraceae Asterales
wild safflower Carthamus oxyacanthus M. Bieberstein Asteraceae Asterales
common caraway Carum carvi L. Apiaceae Apiales
gray sheoak Casuarina glauca Sieb. ex Spreng Casuarinaceae Casuarinales
Mediterranean clone of caulerpa Caulerpa taxifolia (Vahl) C. Agardth Caulerpaceae Caulerpales
bushkiller Cayratia japonica (Thunb.) Gagnepain Vitaceae Rhamnales
oriental bittersweet Celastrus orbiculatus Thunb. Celastraceae Celastrales
southern sandbur Cenchrus echinatus L. Poaceae Cyperales
longspine sandbur Cenchrus longispinus (Hack.) Fern Poaceae Cyperales
field sandbur Cenchrus spinifex Cav. Poaceae Cyperales
purple starthistle Centaurea calcitrapa L. Asteraceae Asterales
meadow knapweed Centaurea debeauxii Gren. & Godr. [excluded] Asteraceae Asterales
diffuse knapweed Centaurea diffusa Lam. Asteraceae Asterales
Iberian starthistle Centaurea iberica Trev. ex Spreng Asteraceae Asterales
brown knapweed Centaurea jacea L. Asteraceae Asterales
bighead knapweed Centaurea macrocephala Puschk. ex Willd. Asteraceae Asterales
Malta starthistle Centaurea melitensis L. Asteraceae Asterales
meadow knapweed Centaurea moncktonii C. E. Britton[C. jacea X C. nigra] Asteraceae Asterales
black knapweed Centaurea nigra L. Asteraceae Asterales
alpine knapweed Centaurea nigrescens Willd Asteraceae Asterales
yellow starthistle Centaurea solstitialis L. Asteraceae Asterales
spotted knapweed Centaurea stoebe L. Asteraceae Asterales
spotted knapweed Centaurea stoebe ssp. micranthos (Gugler) Hayek Asteraceae Asterales
sulphur knapweed Centaurea sulphurea Willd Asteraceae Asterales
squarrose knapweed Centaurea virgata Lam. Asteraceae Asterales
squarrose knapweed Centaurea virgata ssp. squarrosa Lam. Asteraceae Asterales
common tarweed Centromadia pungens ssp. pungens (Hook. & Arn.) Greene Asteraceae Asterales
watersprite Ceratopteris thalictroides (L.) Brongn. Parkeriaceae Polypodiales
dwarf snapdragon Chaenorhinum minus (L.) Lange Scrophulariaceae Scrophulariales
rush skeletonweed Chondrilla juncea L. Asteraceae Asterales
blue mustard Chorispora tenella (Pallas) DC. Brassicaceae Capparales
pilipiliula Chrysopogon aciculatus (Retz.) Trin. Poaceae Cyperales
chicory Cichorium intybus L. Asteraceae Asterales
spotted waterhemlock Cicuta maculata L. Apiaceae Apiales
Canada thistle Cirsium arvense (L.) Scop. Asteraceae Asterales
Japanese thistle Cirsium japonicum Fisch. ex DC. Asteraceae Asterales
yellowspine thistle Cirsium ochrocentrum Gray Asteraceae Asterales
thistle Cirsium spp. P. Mill. Asteraceae Asterales
wavyleaf thistle Cirsium undulatum (Nutt.) Spreng Asteraceae Asterales
bull thistle Cirsium vulgare (Savi) Ten. Asteraceae Asterales
tangerine Citrus reticulata Blanco Rutaceae Sapindales
oriental virginsbower Clematis orientalis L. Ranunculaceae Ranunculales
evergreen clematis Clematis vitalba L. Ranunculaceae Ranunculales
soapbush Clidemia hirta (L.) D. Don Melastomataceae Myrtales
blessed thistle Cnicus benedictus L. Asteraceae Asterales
Asian nakedwood Colubrina asiatica (L.) Brongn. Rhamnaceae Rhamnales
Benghal dayflower Commelina benghalensis L. Commelinaceae Commelinales
poison-hemlock Conium maculatum L. Apiaceae Apiales
field bindweed Convolvulus arvensis L. Convolvulaceae Solanales
horseweed Conyza canadensis (L.) Cronq. Asteraceae Asterales
greater swinecress Coronopus squamatus (Forsk.) Aschers. Brassicaceae Capparales
purple pampasgrass Cortaderia jubata (Lem.) Stapf Poaceae Cyperales
Mexican brassbuttons Cotula mexicana (DC.) Cabrera Asteraceae Asterales
swamp stonecrop Crassula helmsii A. Berger Crassulaceae Rosales
rattlebox Crotalaria spp. L. Fabaceae (Leguminosae) Fabales
common crupina Crupina vulgaris Cass. Asteraceae Asterales
Cucumis melo var. dudaim (L.) Naud. Cucurbitaceae Violales
gooseberry gourd Cucumis myriocarpus E. Mey. ex Naud. Cucurbitaceae Violales
carrotwood Cupaniopsis anacardioides (A. Rich.) Radlk. Sapindaceae Sapindales
smallseed alfalfa dodder Cuscuta approximata Bab. Cuscutaceae Solanales
Japanese dodder Cuscuta japonica Choisy Cuscutaceae Solanales
giant dodder Cuscuta reflexa Roxb. Cuscutaceae Solanales
dodder Cuscuta spp. L. Cuscutaceae Solanales
Black dog-strangling vine, black swallowwort Cynanchum louiseae Kartesz & Gandhi Asclepiadaceae Gentianales
dog-strangling vine, European swallowwort Cynanchum rossicum (Kleopov) Barbarich Asclepiadaceae Gentianales
white swallowwort Cynanchum vincetoxicum (L.) Pers. Asclepiadaceae Gentianales
cardoon Cynara cardunculus L. Asteraceae Asterales
Ethiopian dogstooth grass Cynodon aethiopicus W.D. Clayton & Harlan Poaceae Cyperales
bermudagrass Cynodon dactylon (L.) Pers Poaceae Cyperales
Magennis' dogstooth grass Cynodon magennisii Hurcombe Poaceae Cyperales
African bermudagrass Cynodon nlemfuensis Vanderyst Poaceae Cyperales
African bermudagrass Cynodon nlemfuensis var. nlemfuensis Vanderyst Poaceae Cyperales
African bermudagrass Cynodon nlemfuensis var. robustus W.D. Clayton & Harlan Poaceae Cyperales
stargrass Cynodon plectostachyus (K. Schum.) Pilger Poaceae Cyperales
Bermudagrass Cynodon spp. Poaceae Cyperales
bermudagrass Cynodon transvalensis Burtt-Davy Poaceae Cyperales
houndstongue Cynoglossum officinale L. Boraginaceae Lamiales
yellow nutsedge Cyperus esculentus L. Cyperaceae Cyperales
purple nutsedge Cyperus rotundus L. Cyperaceae Cyperales
Scotch broom Cytisus scoparius (L.) Link Fabaceae (Leguminosae) Fabales
striated broom Cytisus striatus (Hill) Rothm Fabaceae (Leguminosae) Fabales
spurgelaurel Daphne laureola L. Thymelaeaceae Myrtales
jimsonweed Datura stramonium L. Solanaceae Solanales
Queen Anne's lace, wild carrot Daucus carota L. Apiaceae Apiales
wild carrot Daucus carota ssp. carota L. Apiaceae Apiales
African couchgrass Digitaria abyssinica (A. Rich) Stapf Poaceae Cyperales
velvet fingergrass Digitaria velutina (Forsk.) Beauv. Poaceae Cyperales
Virginia buttonweed Diodia virginiana L Rubiaceae Rubiales
winged yam Dioscorea alata L. Dioscoreaceae Dioscoreales
air-potato Dioscorea bulbifera L. Dioscoreaceae Dioscoreales
common teasel Dipsacus fullonum L. Dipsacaceae Dipsacales
cutleaf teasel Dipsacus laciniatus L. Dipsacaceae Dipsacales
teasel Dipsacus spp. L. Dipsacaceae Dipsacales
alfombrilla Drymaria arenarioides Humboldt & Bonpland Caryophyllaceae Caryophyllales
heartleaf drymary Drymaria cordata (L.) Willd. ex J.A. Schultes Caryophyllaceae Caryophyllales
barnyardgrass Echinochloa crus-galli (L.) Beauv Poaceae Cyperales
wild cucumber Echinocystis lobata (Michx.) Torr. & Gray Cucurbitaceae Violales
salvation jane Echium plantagineum L. Boraginaceae Lamiales
common viper's bugloss Echium vulgare L. Boraginaceae Lamiales
Brazilian waterweed Egeria densa Planch. Hydrocharitaceae Hydrocharitales
anchored waterhyacinth Eichhornia azurea (Swartz) Kunth Pontederiaceae Liliales
common water hyacinth Eichhornia crassipes (Mart.) Solms Pontederiaceae Liliales
Russian olive Elaeagnus angustifolia L. Elaeagnaceae Rhamnales
thorny olive Elaeagnus pungens Thunb. Elaeagnaceae Rhamnales
autumn olive Elaeagnus umbellata Thunb. Elaeagnaceae Rhamnales
crested latesummer mint Elsholtzia ciliata (Thunb.) Hyl. Lamiaceae Lamiales
quackgrass Elymus repens (L.) Gould Poaceae Cyperales
three-cornered jack Emex australis Steinhall Polygonaceae Polygonales
spiny emex Emex spinosa (Linnaeus) Campdera Polygonaceae Polygonales
hairy willowherb Epilobium hirsutum L. Onagraceae Myrtales
giant horsetail Equisetum telmateia Ehrh. Equisetaceae Equisetales
redstem filaree Erodium cicutarium (L.) L'Hér. ex Ait. Geraniaceae Geraniales
winged burning bush Euonymus alatus (Thunb.) Sieb. Celastraceae Celastrales
cypress spurge Euphorbia cyparissias L. Euphorbiaceae Euphorbiales
leafy spurge Euphorbia esula L. Euphorbiaceae Euphorbiales
grassleaf spurge Euphorbia graminea Jacq. Euphorbiaceae Euphorbiales
wild poinsettia Euphorbia heterophylla L Euphorbiaceae Euphorbiales
myrtle spurge Euphorbia myrsinites L Euphorbiaceae Euphorbiales
eggleaf spurge Euphorbia oblongata Griseb Euphorbiaceae Euphorbiales
serrate spurge Euphorbia serrata L. Euphorbiaceae Euphorbiales
Geraldton carnation weed Euphorbia terracina L. Euphorbiaceae Euphorbiales
hawk's eye Euryops multifidus (Thunb.) DC. Asteraceae Asterales
wild buckwheat Fallopia convolvulus L. Polygonaceae Polygonales
Japanese knotweed Fallopia japonica (Houttuyn) Ronse-Decraene Polygonaceae Polygonales
giant knotweed Fallopia sachalinensis (F. Schmidt) Ronse-Decraene Polygonaceae Polygonales
Bohemian knotweed Fallopia x bohemica (Chrtek & Chrtková) J.P.Bailey Polygonaceae Polygonales
mulberryweed Fatoua villosa (Thunb.) Nakai Moraceae Urticales
field fescue Festuca arvernensis Auquier, Kerguélen & Markgr.-Dannenb. Poaceae Cyperales
lesser celandine, fig buttercup Ficaria verna Huds. Ranunculaceae Ranunculales
fennel Foeniculum vulgare P. Mill. Apiaceae Apiales
glossy buckthorn Frangula alnus Mill. Rhamnaceae Rhamnales
slender snakecotton Froelichia gracilis (Hook.) Moq. Amaranthaceae Caryophyllales
goatsrue Galega officinalis L. Fabaceae (Leguminosae) Fabales
common hempnettle Galeopsis tetrahit L. Lamiaceae Lamiales
smallflower galinsoga Galinsoga parviflora Cav. Asteraceae Asterales
scarlet gaura Gaura coccinea Nutt. ex Pursh Onagraceae Myrtales
Drummond's beeblossom Gaura drummondii (Spach) Torr. & Gray Onagraceae Myrtales
wavyleaf gaura Gaura sinuata Nutt. ex Ser Onagraceae Myrtales
French broom Genista monspessulana (L.) L. Johnson Fabaceae (Leguminosae) Fabales
shining geranium Geranium lucidum L. Geraniaceae Geraniales
herb-robert Geranium robertianum L. Geraniaceae Geraniales
yellow hornpoppy Glaucium flavum Crantz Papaveraceae Papaverales
ground ivy Glechoma hederacea L. Lamiaceae Lamiales
mudmat Glossostigma diandrum (L.) Kuntze Scrophulariaceae Scrophulariales
American mannagrass Glyceria grandis var. grandis S. Watson Poaceae Cyperales
rough mannagrass Glyceria maxima (Hartman) Holmb. Poaceae Cyperales
babysbreath Gypsophila paniculata L Caryophyllaceae Caryophyllales
common salttree Halimodendron halodendron (L. f.) Voss Fabaceae (Leguminosae) Fabales
halogeton Halogeton glomeratus (Bieb.) C.A. Mey. Chenopodiaceae Caryophyllales
English ivy Hedera helix L. Araliaceae Apiales
Atlantic Ivy Hedera hibernica (Kirchn.) Bean. Araliaceae Apiales
common sunflower Helianthus annuus L. Asteraceae Asterales
Texas blueweed Helianthus ciliaris DC. Asteraceae Asterales
giant hogweed Heracleum mantegazzianum Sommier & Levier Apiaceae Apiales
dames rocket Hesperis matronalis L. Brassicaceae Capparales
tanglehead Heteropogon contortus (L.) Beauv. ex Roemer & J.A. Schultes Poaceae Cyperales
Venice mallow Hibiscus trionum L. Malvaceae Malvales
polar hawkweed Hieracium atratum Fr. Asteraceae Asterales
orange hawkweed Hieracium aurantiacum L. Asteraceae Asterales
meadow hawkweed Hieracium caespitosum Dumort. Asteraceae Asterales
queen-devil hawkweed Hieracium glomeratum Froel. Asteraceae Asterales
common hawkweed Hieracium lachenalii K.C. Gmel. Asteraceae Asterales
smooth hawkweed Hieracium laevigatum Asteraceae Asterales
mouseear hawkweed Hieracium pilosella L. Asteraceae Asterales
kingdevil hawkweed Hieracium piloselloides Vill. Asteraceae Asterales
yellow devil hawkweed Hieracium x floribundum Wimmer & Grab. [caespitosum x lactucella] Asteraceae Asterales
hogpotato Hoffmannseggia glauca (Ortega) Eifert Fabaceae (Leguminosae) Fabales
cape tulip Homeria spp. Vent. Iridaceae Liliales
Japanese hop Humulus japonicus Siebold & Zucc. Cannabaceae Urticales
hydrilla Hydrilla verticillata (L. f.) Royle Hydrocharitaceae Hydrocharitales
European frog-bit Hydrocharis morsus-ranae L. Hydrocharitaceae Hydrocharitales
miramar weed Hygrophila polysperma (Roxb.) T. Anders. Acanthaceae Scrophulariales
black henbane Hyoscyamus niger L. Solanaceae Solanales
Canary Island St. Johnswort Hypericum canariense L. Clusiaceae Theales
common St. Johnswort Hypericum perforatum L. Clusiaceae Theales
hairy cat's ear Hypochaeris radicata L. Asteraceae Asterales
Himalayan balsam Impatiens glandulifera Royle Balsaminaceae Geraniales
Brazilian satintail Imperata brasiliensis Trinius Poaceae Cyperales
California satintail Imperata brevifolia Vasey Poaceae Cyperales
cogongrass Imperata cylindrica (L.) Beauv. Poaceae Cyperales
swamp morningglory Ipomoea aquatica Forssk. Convolvulaceae Solanales
morningglory Ipomoea spp. L. Convolvulaceae Solanales
threelobe morningglory Ipomoea triloba L. Convolvulaceae Solanales
purple moonflower Ipomoea turbinata Lag. Convolvulaceae Solanales
Douglas iris Iris douglasiana Herbert Iridaceae Liliales
Rocky Mountain iris Iris missouriensis Nutt. Iridaceae Liliales
yellow iris Iris pseudacorus L. Iridaceae Liliales
Dyer's woad Isatis tinctoria L. Brassicaceae Capparales
saramollagrass Ischaemum rugosum Salisbury Poaceae Cyperales
poverty sumpweed Iva axillaris Pursh Asteraceae Asterales
Mexican fireweed Kochia scoparia (L.) A.J. Scott Chenopodiaceae Caryophyllales
blue lettuce Lactuca tatarica var. pulchella (Pursh) Breitung Asteraceae Asterales
oxygen weed Lagarosiphon major (Ridley) Moss Hydrocharitaceae Hydrocharitales
yellow archangel Lamium galeobdolon (L.) Crantz Lamiaceae Lamiales
dotted duckmeat Landoltia punctata (G.F.W. Mey.) D.H. Les & D.J. Crawford Lemnaceae Arales
European sticktight Lappula squarrosa (Retz.) Dumort. Boraginaceae Lamiales
everlasting peavine Lathyrus latifolius L. Fabaceae (Leguminosae) Fabales
orbicular whitetop Lepidium chalepense L. Brassicaceae Capparales
hoary cress Lepidium draba (L.) Desv Brassicaceae Capparales
perennial pepperweed Lepidium latifolium L. Brassicaceae Capparales
upright pepperweed Lepidium strictum (S. Watson) Rattan Brassicaceae Capparales
Chinese sprangletop Leptochloa chinensis (L.) Nees Poaceae Cyperales
lepyrodiclis Lepyrodiclis holosteoides (C.A. Mey.) Fenzl ex Fisch. & C.A. Mey. Caryophyllaceae Caryophyllales
sericea lespedeza Lespedeza cuneata (Dum.-Cours.) G. Don Fabaceae (Leguminosae) Fabales
white leadtree Leucaena leucocephala (Lam.) de Wit Fabaceae (Leguminosae) Fabales
oxeye daisy Leucanthemum vulgare Lam. Asteraceae Asterales
border privet Ligustrum obtusifolium Sieb. & Zucc. Oleaceae Scrophulariales
California privet Ligustrum ovalifolium Hassk. Oleaceae Scrophulariales
Chinese privet Ligustrum sinense Lour. Oleaceae Scrophulariales
European privet Ligustrum vulgare L. Oleaceae Scrophulariales
West Indian spongeplant Limnobium laevigatum (Humb. & Bonpl. ex Willd.) Heine Hydrocharitaceae Hydrocharitales
American frogbit Limnobium spongia (Bosc) L.C. Rich. ex Steud. Hydrocharitaceae Hydrocharitales
Indian marshweed Limnophila indica (L.) Druce Scrophulariaceae Scrophulariales
limnophila Limnophila sessiliflora (Vahl) Blume Scrophulariaceae Scrophulariales
Dalmatian toadflax Linaria dalmatica (L.) P. Mill. Scrophulariaceae Scrophulariales
dalmatian toadflax Linaria dalmatica ssp. dalmatica (L.) P. Mill. Scrophulariaceae Scrophulariales
broomleaf toadflax Linaria genistifolia (L.) P. Mill. Scrophulariaceae Scrophulariales
yellow toadflax Linaria vulgaris P. Mill. Scrophulariaceae Scrophulariales
poison ryegrass Lolium temulentum L. Poaceae Cyperales
Japanese honeysuckle Lonicera japonica Thunb. Caprifoliaceae Dipsacales
Amur honeysuckle Lonicera maackii (Rupr.) Herder Caprifoliaceae Dipsacales
Morrow's honeysuckle Lonicera morrowii Gray Caprifoliaceae Dipsacales
Tatarian honeysuckle Lonicera tatarica L. Caprifoliaceae Dipsacales
showy fly honeysuckle, Bell's honeysuckle Lonicera x bella Zabel [morrowii × tatarica] Caprifoliaceae Dipsacales
dwarf honeysuckle Lonicera xylosteum L. Caprifoliaceae Dipsacales
water primrose Ludwigia grandiflora ssp. hexapetala (Hook. & Arn.) Nesom & Kartesz Onagraceae Myrtales
creeping waterprimrose Ludwigia peploides (Kunth) Raven Onagraceae Myrtales
primrose-willow Ludwigia peruviana (L.) Hara Onagraceae Myrtales
Uruguay waterprimrose Ludwigia uruguayensis Camb.) Hara Onagraceae Myrtales
African boxthorn Lycium ferocessimum Miers Solanaceae Solanales
Japanese climbing fern Lygodium japonicum (Thunb. ex Murr.) Sw. Lygodiaceae Polypodiales
old world climbing fern Lygodium microphyllum (Cav.) R. Br. Lygodiaceae Polypodiales
creeping yellow loosestrife, creeping Jenney Lysimachia nummularia L. Primulaceae Primulales
garden loosestrife Lysimachia vulgaris L. Primulaceae Primulales
purple loosestrife Lythrum salicaria L. Lythraceae Myrtales
loosestrife Lythrum spp. L. Lythraceae Myrtales
European wand loosestrife Lythrum virgatum L. Lythraceae Myrtales
leatherleaf mahonia Mahonia bealei (Fortune) Carr. Berberidaceae Ranunculales
alkali mallow Malvella leprosa (Ortega) Krapov. Malvaceae Malvales
European water-clover Marsilea quadrifolia L. Marsileaceae Hydropteridales
California burclover Medicago polymorpha L. Fabaceae (Leguminosae) Fabales
melaleuca Melaleuca quinquenervia (Cav.) Blake Myrtaceae Myrtales
Banks melastoma Melastoma malabathricum L. Melastomataceae Myrtales
Japanese stiltgrass Microstegium vimineum (Trin.) A. Camus Poaceae Cyperales
African mile-a-minute Mikania cordata (Burm. f.) B.L. Robins. Asteraceae Asterales
mile-a-minute Mikania micrantha Kunth Asteraceae Asterales
spring millet Milium vernale Bieb. Poaceae Cyperales
giant sensitiveplant Mimosa diplotricha C. Wright ex Sauvalle Fabaceae (Leguminosae) Fabales
catclaw mimosa Mimosa pellita Kunth ex Willd. Fabaceae (Leguminosae) Fabales
wild four-o'clock Mirabilis nyctaginea (Michx.) MacM. Nyctaginaceae Caryophyllales
Amur silvergrass Miscanthus sacchariflorus (Maxim.) Franch. Poaceae Cyperales
Chinese silvergrass Miscanthus sinensis Anderss. Poaceae Cyperales
arrowleaved monochoria Monochoria hastata (L.) Solms Pontederiaceae Liliales
monochoria Monochoria vaginalis (Burm. f.) K. Presl ex Kunth Pontederiaceae Liliales
purple mistress Moricandia arvensis (L.) DC. Brassicaceae Capparales
nimblewill Muhlenbergia schreberi J.F. Gmel. Poaceae Cyperales
marsh dayflower Murdannia keisak (Hassk.) Hand.-Maz. Commelinaceae Commelinales
true forget-me-not Myosotis scorpioides L. Boraginaceae Lamiales
giant chickweed Myosoton aquaticum (L.) Moench Caryophyllaceae Caryophyllales
parrotfeather Myriophyllum aquaticum (Vell.) Verdc. Haloragaceae Haloragales
twoleaf watermilfoil Myriophyllum heterophyllum Michx. Haloragaceae Haloragales
Eurasian water-milfoil Myriophyllum spicatum L. Haloragaceae Haloragales
brittleleaf naiad Najas minor All. Najadaceae Najadales
matgrass Nardus stricta L. Poaceae Cyperales
finestem needlegrass Nassella tenuissima (Trin.) Barkworth Poaceae Cyperales
serrated tussock Nassella trichotoma Hackel ex Arech. Poaceae Cyperales
onerow yellowcress Nasturtium microphyllum Boenn. ex Rchb. Brassicaceae Capparales
watercress Nasturtium officinale R. Brown Brassicaceae Capparales
American lotus Nelumbo lutea Willd. Nelumbonaceae Nymphaeales
burmareed Neyraudia reynaudiana (Kunth) Keng ex A.S. Hitchc. Poaceae Cyperales
apple-of-Peru Nicandra physalodes (L.) Gaertn. Solanaceae Solanales
slender false garlic Nothoscordum gracile (Aiton) Stearn Liliaceae Liliales
Mexican waterlily Nymphaea mexicana Zucc. Nymphaeaceae Nymphaeales
fragrant waterlily Nymphaea odorata Ait. Nymphaeaceae Nymphaeales
yellow floating heart Nymphoides peltata (S.G. Gmel.) Kuntze Menyanthaceae Solanales
foxtail restharrow Ononis alopecuroides L. Fabaceae (Leguminosae) Fabales
Scotch thistle Onopordum acanthium L. Asteraceae Asterales
Illyrian cottonthistle Onopordum illyricum L. Asteraceae Asterales
cottonthistle Onopordum spp. L. Asteraceae Asterales
bull cottonthistle Onopordum tauricum Willd. Asteraceae Asterales
jointed prickly pear Opuntia aurantiaca Lindley Cactaceae Caryophyllales
star-of-Bethlehem Ornithogalum umbellatum L. Liliaceae Liliales
desert broomrape Orobanche cooperi (Gray) Heller Orobanchaceae Scrophulariales
small broomrape Orobanche minor Smith Orobanchaceae Scrophulariales
branched broomrape Orobanche ramosa L. Orobanchaceae Scrophulariales
broomrape Orobanche spp. L. Orobanchaceae Scrophulariales
longstamen rice Oryza longistaminata A. Chev. & Roehr. Poaceae Cyperales
red rice Oryza punctata Kotzchy ex Steud. Poaceae Cyperales
brown-beard rice Oryza rufipogon Griffiths Poaceae Cyperales
duck-lettuce Ottelia alismoides (Linnaeus) Pers. Hydrocharitaceae Hydrocharitales
cressleaf groundsel Packera glabella (Poir) C. Jeffrey Asteraceae Asterales
sewer vine Paederia cruddasiana Prain Rubiaceae Rubiales
skunk-vine Paederia foetida L. Rubiaceae Rubiales
blue panicum Panicum antidotale Retz. Poaceae Cyperales
wild-proso millet Panicum miliaceum L. Poaceae Cyperales
torpedograss Panicum repens L. Poaceae Cyperales
opium poppy Papaver somniferum L. Papaveraceae Papaverales
ricegrass paspalum Paspalum scrobiculatum Linnaeus Poaceae Cyperales
wild parsnip Pastinaca sativa L. Apiaceae Apiales
princesstree Paulownia tomentosa (Thunb.) Sieb. & Zucc. ex Steud. Scrophulariaceae Scrophulariales
African rue Peganum harmala L. Zygophyllaceae Sapindales
buffelgrass Pennisetum ciliare (L.) Link Poaceae Cyperales
kikuyugrass Pennisetum clandestinum Hochst. ex Chiov. Poaceae Cyperales
African feathergrass Pennisetum macrourum Trinius Poaceae Cyperales
kyasumagrass Pennisetum pedicellatum Trinius Poaceae Cyperales
mission grass Pennisetum polystachion (Linnaeus) Schultes Poaceae Cyperales
crimson fountaingrass Pennisetum setaceum (Forsk.) Chiov. Poaceae Cyperales
Oriental lady's thumb Persicaria longiseta (Bruijn) Kitagawa Polygonaceae Polygonales
mile-a-minute vine Persicaria perfoliata (L.) H. Gross Polygonaceae Polygonales
cultivated knotweed Persicaria wallichii Greuter & Burdet Polygonaceae Polygonales
reed canarygrass Phalaris arundinacea L. Poaceae Cyperales
Amur corktree Phellodendron amurense Rupr. Rutaceae Sapindales
common reed Phragmites australis (Cavanilles) Trinius ex Steudel Poaceae Cyperales
Mascarene Island leaf-flower Phyllanthus tenellus Roxb. Euphorbiaceae Euphorbiales
chamber bitter Phyllanthus urinaria L. Euphorbiaceae Euphorbiales
longleaf groundcherry Physalis longifolia Nutt. Solanaceae Solanales
longleaf groundcherry Physalis longifolia var. longifolia Nutt. Solanaceae Solanales
smooth groundcherry Physalis longifolia var. subglabrata (Mack. & Bush) Cronquist Solanaceae Solanales
starhair groundcherry Physalis viscosa L. Solanaceae Solanales
hawkweed oxtongue Picris hieracioides L. Asteraceae Asterales
water lettuce Pistia stratiotes L. Araceae Arales
bracted plantain Plantago aristata Michx. Plantaginaceae Plantaginales
buckhorn plantain Plantago lanceolata L. Plantaginaceae Plantaginales
plantains Plantago spp. L. Plantaginaceae Plantaginales
annual bluegrass Poa annua L. Poaceae Cyperales
Canada bluegrass Poa compressa L. Poaceae Cyperales
water knotweed Polygonum amphibium L. Polygonaceae Polygonales
longroot smartweed Polygonum amphibium var. emersum Michx. Polygonaceae Polygonales
Polygonum perfoliatum L. Polygonaceae Polygonales
Bohemian knotweed Polygonum x bohemicum (J. Chrtek & Chrtkovß) Zika & Jacobson [cuspidatum x sachalinense] Polygonaceae Polygonales
white poplar Populus alba L. Salicaceae Salicales
common purslane Portulaca oleracea L. Portulacaceae Caryophyllales
curly-leaved pondweed Potamogeton crispus L. Potamogetonaceae Najadales
sulfur cinquefoil Potentilla recta L. Rosaceae Rosales
devil's-claw Proboscidea louisianica (P. Mill.) Thellung Pedaliaceae Scrophulariales
alapataco Prosopis alpataco R. A. Philippi Fabaceae (Leguminosae) Fabales
algarobilla Prosopis argentina Burkart Fabaceae (Leguminosae) Fabales
mesquite Prosopis burkartii Muñoz Fabaceae (Leguminosae) Fabales
calden Prosopis caldenia Burkart Fabaceae (Leguminosae) Fabales
cusqui Prosopis calingastana Burkart Fabaceae (Leguminosae) Fabales
algarrobillo Prosopis campestris Griesbach Fabaceae (Leguminosae) Fabales
mesquite Prosopis castellanosii Burkart Fabaceae (Leguminosae) Fabales
algarrobo patagonica Prosopis denudans Bentham Fabaceae (Leguminosae) Fabales
algarrobillo Prosopis elata (Burkart) Burkart Fabaceae (Leguminosae) Fabales
Syrian mesquite Prosopis farcta (Banks & Soland.) J.F. Macbr. Fabaceae (Leguminosae) Fabales
churqui Prosopis ferox Griesbach Fabaceae (Leguminosae) Fabales
mesquite Prosopis fiebrigii Harms Fabaceae (Leguminosae) Fabales
algarrobo paraguayo Prosopis hassleri Harms ex Hassler Fabaceae (Leguminosae) Fabales
algarrobilla Prosopis humilis Gillies ex Hooker & Arnott Fabaceae (Leguminosae) Fabales
barbe de tigre Prosopis kuntzei Harms ex Hassler Fabaceae (Leguminosae) Fabales
kiawe Prosopis pallida (Humb. & Bonpl. ex Willd.) Kunth Fabaceae (Leguminosae) Fabales
palo de hierro Prosopis palmeri S. Watson Fabaceae (Leguminosae) Fabales
mastuerzo Prosopis reptans reptans Bentham Fabaceae (Leguminosae) Fabales
mesquite Prosopis rojasiana Burkart Fabaceae (Leguminosae) Fabales
mesquite Prosopis ruizlealii Burkart Fabaceae (Leguminosae) Fabales
vinal Prosopis ruscifolia Griesbach Fabaceae (Leguminosae) Fabales
albardon Prosopis sericantha Gillies ex Hook. & Arn. Fabaceae (Leguminosae) Fabales
mesquite Prosopis spp. L. Fabaceae (Leguminosae) Fabales
Argentine screwbean Prosopis strombulifera (Lamarck) Bentham Fabaceae (Leguminosae) Fabales
lata Prosopis torquata (Cavan. ex Lagasca y Segura) DC. Fabaceae (Leguminosae) Fabales
velvet mesquite Prosopis velutina Woot. Fabaceae (Leguminosae) Fabales
kudzu Pueraria montana (Lour.)Merr. Fabaceae (Leguminosae) Fabales
kudzu Pueraria montana var. lobata (Willd.) Maesen & S. Almeida Fabaceae (Leguminosae) Fabales
tall buttercup Ranunculus acris L. Ranunculaceae Ranunculales
creeping buttercup Ranunculus repens L. Ranunculaceae Ranunculales
wild radish Raphanus raphanistrum L. Brassicaceae Capparales
bridal broom Retama monosperma (L.) Boiss. Fabaceae (Leguminosae) Fabales
European buckthorn Rhamnus cathartica L. Rhamnaceae Rhamnales
buckthorn Rhamnus spp. L. Rhamnaceae Rhamnales
Russian knapweed Rhaponticum repens (L.) Hidalgo Asteraceae Asterales
rose myrtle Rhodomyrtus tomentosa (Ait.) Hassk. Myrtaceae Myrtales
black locust Robinia pseudoacacia L. Fabaceae (Leguminosae) Fabales
amphibious yellowcress Rorippa amphibia (L.) Besser Brassicaceae Capparales
Austrian fieldcress Rorippa austriaca (Crantz) Bess. Brassicaceae Capparales
yellow fieldcress Rorippa sylvestris (L.) Bess. Brassicaceae Capparales
multiflora rose Rosa multiflora Thunb. Rosaceae Rosales
Seaside rose Rosa rugosa Thunb. Rosaceae Rosales
roundleaf toothcup Rotala rotundifolia (Buch.-Ham. ex Roxb.) Koehne Lythraceae Myrtales
itchgrass Rottboellia cochinchinensis (Lour.) W.D. Clayton Poaceae Cyperales
Himalaya blackberry Rubus armeniacus Focke Rosaceae Rosales
European blackberry Rubus fruticosus L. Rosaceae Rosales
cutleaf blackberry Rubus laciniatus Willd. Rosaceae Rosales
Molucca raspberry Rubus moluccanus L. Rosaceae Rosales
wine raspberry Rubus phoenicolasius Maxim. Rosaceae Rosales
red sorrel Rumex acetosella L. Polygonaceae Polygonales
pale dock Rumex altissimus Wood Polygonaceae Polygonales
curly dock Rumex crispus L. Polygonaceae Polygonales
dock Rumex spp. L. Polygonaceae Polygonales
wild sugarcane Saccharum spontaneum L. Poaceae Cyperales
grassy arrowhead Sagittaria graminea Michx. Alismataceae Alismatales
arrowhead Sagittaria sagittifolia Linnaeus Alismataceae Alismatales
slender Russian thistle Salsola collina Pallas Chenopodiaceae Caryophyllales
barbwire Russian-thistle Salsola paulsenii Litv. Chenopodiaceae Caryophyllales
salsola Salsola spp. L. Chenopodiaceae Caryophyllales
Russian-thistle Salsola tragus L. Chenopodiaceae Caryophyllales
Mediterranean saltwort Salsola vermiculata L. Chenopodiaceae Caryophyllales
Mediterranean sage Salvia aethiopis L. Lamiaceae Lamiales
meadow sage Salvia pratensis L. Lamiaceae Lamiales
Europe sage Salvia sclarea L. Lamiaceae Lamiales
southern meadow sage Salvia virgata Jacq. Lamiaceae Lamiales
eared salvinia Salvinia auriculata Aublet Salviniaceae Hydropteridales
lobed salvinia Salvinia biloba Raddi Salviniaceae Hydropteridales
Herzog salvinia Salvinia herzogii de la Sota Salviniaceae Hydropteridales
giant salvinia Salvinia molesta D. S. Mitchell Salviniaceae Hydropteridales
watermoss Salvinia spp. Séguier Salviniaceae Hydropteridales
bouncingbet Saponaria officinalis L. Caryophyllaceae Caryophyllales
beach naupaka Scaevola sericea var. sericea Vahl Goodeniaceae Campanulales
Brazilian peppertree Schinus terebinthifolius Raddi Anacardiaceae Sapindales
ricefield bulrush Schoenoplectus mucronatus (L.) Palla Cyperaceae Cyperales
common goldenthistle Scolymus hispanicus L. Asteraceae Asterales
goldenthistle Scolymus spp. L. Asteraceae Asterales
South African ragwort Senecio inaequidens DC. Asteraceae Asterales
tansy ragwort Senecio jacobaea L. Asteraceae Asterales
Madagascar ragwort Senecio madagascariensis Poir. Asteraceae Asterales
oxford ragwort Senecio squalidus L. Asteraceae Asterales
common groundsel Senecio vulgaris L. Asteraceae Asterales
sicklepod Senna obtusifolia (L.) Irwin & Barneby Fabaceae (Leguminosae) Fabales
hemp sesbania Sesbania exaltata (Raf.) Rydb. ex A. W. Hill Fabaceae (Leguminosae) Fabales
red sesbania Sesbania punicea (Cav.) Benth. Fabaceae (Leguminosae) Fabales
giant foxtail Setaria faberi Herrm. Poaceae Cyperales
yellow foxtail Setaria pumila (Poir.) Roemer & J.A. Schultes Poaceae Cyperales
cattail grass Setaria pumila ssp. pallidefusca (Schumacher) B.K. Simon Poaceae Cyperales
burcucumber Sicyos angulatus L. Cucurbitaceae Violales
meadow campion Silene flos-cuculi (L.) Clairv. Caryophyllaceae Caryophyllales
bladder campion Silene latifolia ssp. alba (Mill.) Greuter & Burdet Caryophyllaceae Caryophyllales
cup rosinweed Silphium perfoliatum L. Asteraceae Asterales
blessed milkthistle Silybum marianum (L.) Gaertn. Asteraceae Asterales
milkthistle Silybum spp. Adans Asteraceae Asterales
wild mustard Sinapis arvensis L. Brassicaceae Capparales
wild mustard Sinapis arvensis ssp. arvensis L. Brassicaceae Capparales
heaftleaf horsenettle Solanum cardiophyllum Lindl. Solanaceae Solanales
horsenettle Solanum carolinense L. Solanaceae Solanales
robust horsenettle Solanum dimidiatum Raf. Solanaceae Solanales
bittersweet nightshade Solanum dulcamara L. Solanaceae Solanales
silverleaf nightshade Solanum elaeagnifolium Cavanaugh Solanaceae Solanales
orangeberry nightshade Solanum lanceolatum Cav. Solanaceae Solanales
purple African nightshade Solanum marginatum L. f. Solanaceae Solanales
black nightshade Solanum nigrum L. Solanaceae Solanales
hairy nightshade Solanum physalifolium Rusby Solanaceae Solanales
buffalobur Solanum rostratum Dunal Solanaceae Solanales
wetland nightshade Solanum tampicense Dunal Solanaceae Solanales
turkeyberry Solanum torvum Sw. Solanaceae Solanales
tropical soda apple Solanum viarum Dunal Solanaceae Solanales
lawn burweed Soliva sessilis Ruiz & Pavón Asteraceae Asterales
perennial sowthistle Sonchus arvensis L. Asteraceae Asterales
field sowthistle Sonchus arvensis ssp. arvensis L. Asteraceae Asterales
sorghum-almum Sorghum almum Parodi Poaceae Cyperales
sorghum Sorghum bicolor (L.) Moench Poaceae Cyperales
johnsongrass Sorghum halepense (L.) Pers. Poaceae Cyperales
sorghum Sorghum spp. Moench Poaceae Cyperales
branched burreed Sparganium erectum L. Sparganiaceae Typhales
smooth cordgrass Spartina alterniflora Loisel. Poaceae Cyperales
common cordgrass Spartina anglica C.E. Hubbard Poaceae Cyperales
denseflower cordgrass Spartina densiflora Brongn. Poaceae Cyperales
saltmeadow cordgrass Spartina patens (Ait.) Muhl. Poaceae Cyperales
Spanish broom Spartium junceum L. Fabaceae (Leguminosae) Fabales
broadleaf buttonweed Spermacoce alata Aubl. Rubiaceae Rubiales
swainsonpea Sphaerophysa salsula (Pallas) DC. Fabaceae (Leguminosae) Fabales
Florida betony Stachys floridana Shuttlw. ex Benth. Lamiaceae Lamiales
water soldier Stratiotes aloides L. Hydrocharitaceae Hydrocharitales
witchweed Striga asiatica (L.) Kuntze Scrophulariaceae Scrophulariales
cowpea witchweed Striga gesnerioides (Willd.) Vatke Scrophulariaceae Scrophulariales
purple witchweed Striga hermonthica (Del.) Benth Scrophulariaceae Scrophulariales
witchweed Striga spp. Lour. Scrophulariaceae Scrophulariales
prickly comfrey Symphytum asperum Lepechin Boraginaceae Lamiales
medusahead Taeniatherum caput-medusae (L.) Nevski Poaceae Cyperales
wild marigold Tagetes minuta L. Asteraceae Asterales
Athel tamarisk Tamarix aphylla (L.) Karst. Tamaricaceae Violales
fivestamen tamarisk Tamarix chinensis Lour. Tamaricaceae Violales
French tamarisk Tamarix gallica L. Tamaricaceae Violales
smallflower tamarisk Tamarix parviflora DC. Tamaricaceae Violales
saltcedar Tamarix ramosissima Ledeb. Tamaricaceae Violales
tamarisk Tamarix spp. L. Tamaricaceae Violales
common tansy Tanacetum vulgare L. Asteraceae Asterales
field pennycress Thlaspi arvense L. Brassicaceae Capparales
spurge flax Thymelaea passerina (L.) Coss. & Germ. Thymelaeaceae Myrtales
spreading hedgeparsley Torilis arvensis (Huds.) Link Apiaceae Apiales
Atlantic poison-oak Toxicodendron pubescens P. Mill. Anacardiaceae Sapindales
eastern poison-ivy Toxicodendron radicans (L.)Kuntze Anacardiaceae Sapindales
poison-sumac Toxicodendron vernix (L.) Kuntze Anacardiaceae Sapindales
European water chestnut Trapa natans L. Trapaceae Myrtales
water chestnut Trapa spp. L. Trapaceae Myrtales
Chinese tallowtree Triadica sebifera (L.) Small Euphorbiaceae Euphorbiales
Capetown grass Tribolium obliterum (Hemsl.) Renvoize Poaceae Cyperales
puncturevine Tribulus terrestris L. Zygophyllaceae Sapindales
coat buttons Tridax procumbens L. Asteraceae Asterales
false chamomile Tripleurospermum perforatum (Merat) M. Lainz Asteraceae Asterales
coltsfoot Tussilago farfara L. Asteraceae Asterales
gorse Ulex europaeus L. Fabaceae (Leguminosae) Fabales
Siberian elm Ulmus pumila L. Ulmaceae Urticales
liverseedgrass Urochloa panicoides Beauvois Poaceae Cyperales
floating bladderwort Utricularia inflata Walter Lentibulariaceae Scrophulariales
common valerian Valeriana officinalis L. Valerianaceae Dipsacales
moth mullein Verbascum blattaria L. Scrophulariaceae Scrophulariales
common mullein Verbascum thapsus L. Scrophulariaceae Scrophulariales
bird vetch Vicia cracca L. Fabaceae (Leguminosae) Fabales
European mistletoe Viscum album L. Viscaceae Santalales
beach vitex Vitex rotundifolia L. f. Verbenaceae Lamiales
grape Vitis spp. L. Vitaceae Rhamnales
spiny cocklebur Xanthium spinosum L. Asteraceae Asterales
cocklebur Xanthium spp. L. Asteraceae Asterales
common cocklebur Xanthium strumarium L. Asteraceae Asterales
Canada cockleburr Xanthium strumarium var. canadense (Mill.) Torr. & A. Gray Asteraceae Asterales
rough cockleburr Xanthium strumarium var. strumarium L. Asteraceae Asterales
Syrian beancaper Zygophyllum fabago L. Zygophyllaceae Sapindales


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