Invasive and Exotic Forbs and Herbs

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

Subject Name	Scientific Name	Family	Order
crenate broomrape	Orobanche crenata Forsk.	Orobanchaceae	Scrophulariales
small broomrape	Orobanche minor Smith	Orobanchaceae	Scrophulariales
nodding broomrape	Orobanche cernua Loefl. [excluded]	Orobanchaceae	Scrophulariales
Canada thistle	Cirsium arvense (L.) Scop.	Asteraceae	Asterales
garlic mustard	Alliaria petiolata (Bieb.) Cavara & Grande	Brassicaceae	Capparales
musk thistle	Carduus nutans L.	Asteraceae	Asterales
spotted knapweed	Centaurea stoebe ssp. micranthos (Gugler) Hayek	Asteraceae	Asterales
common teasel	Dipsacus fullonum L.	Dipsacaceae	Dipsacales
ground ivy	Glechoma hederacea L.	Lamiaceae	Lamiales
purple loosestrife	Lythrum salicaria L.	Lythraceae	Myrtales
white sweetclover	Melilotus alba Medikus	Fabaceae (Leguminosae)	Fabales
marsh dayflower	Murdannia keisak (Hassk.) Hand.-Maz.	Commelinaceae	Commelinales
lesser celandine, fig buttercup	Ficaria verna Huds.	Ranunculaceae	Ranunculales
common chickweed	Stellaria pallida (Dumort.) Crépin	Caryophyllaceae	Caryophyllales
common mullein	Verbascum thapsus L.	Scrophulariaceae	Scrophulariales
cypress spurge	Euphorbia cyparissias L.	Euphorbiaceae	Euphorbiales
bull thistle	Cirsium vulgare (Savi) Ten.	Asteraceae	Asterales
spiny plumeless thistle	Carduus acanthoides L.	Asteraceae	Asterales
leafy spurge	Euphorbia esula L.	Euphorbiaceae	Euphorbiales
tawny daylily	Hemerocallis fulva (L.) L.	Liliaceae	Liliales
purple deadnettle	Lamium purpureum L.	Lamiaceae	Lamiales
perilla mint	Perilla frutescens (L.) Britton	Lamiaceae	Lamiales
Japanese knotweed	Fallopia japonica Sieb. & Zucc.	Polygonaceae	Polygonales
sisal	Agave sisalana Perrine	Agavaceae	Liliales
prairie sunflower	Helianthus petiolaris Nutt.	Asteraceae	Asterales
yellow toadflax	Linaria vulgaris P. Mill.	Scrophulariaceae	Scrophulariales
dandelion	Taraxacum officinale G.H. Weber ex Wiggers	Asteraceae	Asterales
water fern	Salvinia minima Baker	Salviniaceae	Hydropteridales
turkeyberry	Solanum torvum Sw.	Solanaceae	Solanales
silverleaf nightshade	Solanum elaeagnifolium Cavanaugh	Solanaceae	Solanales
cressleaf groundsel	Packera glabella (Poir) C. Jeffrey	Asteraceae	Asterales
meadow knapweed	Centaurea moncktonii C. E. Britton[C. jacea X C. nigra]	Asteraceae	Asterales
Mediterranean sage	Salvia aethiopis L.	Lamiaceae	Lamiales
poison-hemlock	Conium maculatum L.	Apiaceae	Apiales
squarrose knapweed	Centaurea virgata Lam.	Asteraceae	Asterales
Russian knapweed	Rhaponticum repens (L.) Hidalgo	Asteraceae	Asterales
yellow starthistle	Centaurea solstitialis L.	Asteraceae	Asterales
rush skeletonweed	Chondrilla juncea L.	Asteraceae	Asterales
common St. Johnswort	Hypericum perforatum L.	Clusiaceae	Theales
common crupina	Crupina vulgaris Cass.	Asteraceae	Asterales
tansy ragwort	Senecio jacobaea L.	Asteraceae	Asterales
slenderflower thistle	Carduus tenuiflorus W. Curtis	Asteraceae	Asterales
mouseear hawkweed	Hieracium pilosella L.	Asteraceae	Asterales
orange hawkweed	Hieracium aurantiacum L.	Asteraceae	Asterales
meadow hawkweed	Hieracium caespitosum Dumort.	Asteraceae	Asterales
sulfur cinquefoil	Potentilla recta L.	Rosaceae	Rosales
Scotch thistle	Onopordum acanthium L.	Asteraceae	Asterales
dalmatian toadflax	Linaria dalmatica ssp. dalmatica (L.) P. Mill.	Scrophulariaceae	Scrophulariales
Italian plumeless thistle	Carduus pycnocephalus L.	Asteraceae	Asterales
blessed milkthistle	Silybum marianum (L.) Gaertn.	Asteraceae	Asterales
diffuse knapweed	Centaurea diffusa Lam.	Asteraceae	Asterales
broomleaf toadflax	Linaria genistifolia (L.) P. Mill.	Scrophulariaceae	Scrophulariales
goatsrue	Galega officinalis L.	Fabaceae (Leguminosae)	Fabales
giant hogweed	Heracleum mantegazzianum Sommier & Levier	Apiaceae	Apiales
monochoria	Monochoria vaginalis (Burm. f.) K. Presl ex Kunth	Pontederiaceae	Liliales
arrowleaved monochoria	Monochoria hastata (L.) Solms	Pontederiaceae	Liliales
croftonweed	Ageratina adenophora (Spreng.) King & H.E. Robins.	Asteraceae	Asterales
broadleaf buttonweed	Spermacoce alata Aubl.	Rubiaceae	Rubiales
miramar weed	Hygrophila polysperma (Roxb.) T. Anders.	Acanthaceae	Scrophulariales
Mediterranean saltwort	Salsola vermiculata L.	Chenopodiaceae	Caryophyllales
Benghal dayflower	Commelina benghalensis L.	Commelinaceae	Commelinales
alfombrilla	Drymaria arenarioides Humboldt & Bonpland	Caryophyllaceae	Caryophyllales
wild safflower	Carthamus oxyacanthus M. Bieberstein	Asteraceae	Asterales
coat buttons	Tridax procumbens L.	Asteraceae	Asterales
three-cornered jack	Emex australis Steinhall	Polygonaceae	Polygonales
spiny emex	Emex spinosa (Linnaeus) Campdera	Polygonaceae	Polygonales
witchweed	Striga asiatica (L.) Kuntze	Scrophulariaceae	Scrophulariales
purple witchweed	Striga hermonthica (Del.) Benth	Scrophulariaceae	Scrophulariales
cowpea witchweed	Striga gesnerioides (Willd.) Vatke	Scrophulariaceae	Scrophulariales
branched broomrape	Orobanche ramosa L.	Orobanchaceae	Scrophulariales
teasel	Dipsacus spp. L.	Dipsacaceae	Dipsacales
Dyer's woad	Isatis tinctoria L.	Brassicaceae	Capparales
broomrape	Orobanche spp. L.	Orobanchaceae	Scrophulariales
aeginetia	Aeginetia spp. L.	Orobanchaceae	Scrophulariales
alectra	Alectra spp. Thunb.	Orobanchaceae	Scrophulariales
onionweed	Asphodelus fistulosus Linnaeus	Liliaceae	Liliales
limnophila	Limnophila sessiliflora (Vahl) Blume	Scrophulariaceae	Scrophulariales
witchweed	Striga spp. Lour.	Scrophulariaceae	Scrophulariales
velvetleaf	Abutilon theophrasti Medik	Malvaceae	Malvales
pale biddy-biddy	Acaena pallida (T. Kirk) J. W. Dawson	Rosaceae	Rosales
ye gu	Aeginetia indica L.	Orobanchaceae	Scrophulariales
rough jointgrass	Aeschynomene rudis Benth	Fabaceae (Leguminosae)	Fabales
northern jointvetch	Aeschynomene virginica (L.) B.S.P	Fabaceae (Leguminosae)	Fabales
corn cockle	Agrostemma githago L	Caryophyllaceae	Caryophyllales
wild onion	Allium canadense L.	Liliaceae	Liliales
yerba de hierro	Melasma melampyroides (Rich.) Pennell ex Britton & P.Wilson	Orobanchaceae	Scrophulariales
white garlic	Allium neapolitanum Cirillo	Liliaceae	Liliales
panicled onion	Allium paniculatum L.	Liliaceae	Liliales
wild garlic	Allium vineale L.	Liliaceae	Liliales
wild garlic	Allium vineale ssp. vineale L.	Liliaceae	Liliales
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
spiny amaranth	Amaranthus spinosus L	Amaranthaceae	Caryophyllales
skeletonleaf bursage	Ambrosia tomentosa Nutt.	Asteraceae	Asterales
slender amaranth	Amaranthus viridis L	Amaranthaceae	Caryophyllales
scarlet pimpernel	Lysimachia arvensis (L.) U. Manns & A. Anderb.	Primulaceae	Primulales
small bugloss	Anchusa arvensis (L.) Bieb	Boraginaceae	Lamiales
corn chamomile	Anthemis arvensis L.	Asteraceae	Asterales
stinking chamomile	Anthemis cotula L	Asteraceae	Asterales
spurred anoda	Anoda cristata (L.) Schlecht	Malvaceae	Malvales
oriental vessel fern	Angiopteris evecta (J.R. Forst.) Hoffmann	Marattiaceae	Marattiales
common bugloss	Anchusa officinalis L.	Boraginaceae	Lamiales
wild chervil	Anthriscus sylvestris (L.) Hoffmann	Apiaceae	Apiales
capeweed	Arctotheca calendula (L.) Levyns	Asteraceae	Asterales
common burdock	Arctium minus Bernh.	Asteraceae	Asterales
mugwort	Artemisia vulgaris L.	Asteraceae	Asterales
balloon cottonbush	Asclepias physocarpa (E. Mey.) Schlechter	Asclepiadaceae	Gentianales
yellow rocket	Barbarea vulgaris Ait. f.	Brassicaceae	Capparales
hoary alyssum	Berteroa incana (L.) DC	Brassicaceae	Capparales
English daisy	Bellis perennis L.	Asteraceae	Asterales
bellardia	Bellardia trixago (L.) All	Scrophulariaceae	Scrophulariales
spanishneedles	Bidens bipinnata L.	Asteraceae	Asterales
hairy beggarticks	Bidens pilosa L.	Asteraceae	Asterales
Indian mustard	Brassica juncea (L.) Czern	Brassicaceae	Capparales
black mustard	Brassica nigra (L.) W.D.J. Koch	Brassicaceae	Capparales
African mustard	Brassica tournefortii Gouan	Brassicaceae	Capparales
corn gromwell	Buglossoides arvensis (L.) I.M. Johnston	Boraginaceae	Lamiales
hare's ear	Bupleurum rotundifolium L.	Apiaceae	Apiales
flowering rush	Butomus umbellatus L.	Butomaceae	Alismatales
shepherd's-purse	Capsella bursa-pastoris (L.) Medik.	Brassicaceae	Capparales
fanwort	Cabomba caroliniana L	Cabombaceae	Nymphaeales
common caraway	Carum carvi L.	Apiaceae	Apiales
Carolina fanwort	Cabomba caroliniana var. caroliniana A. Gray	Cabombaceae	Nymphaeales
Carolina fanwort	Cabomba caroliniana var. pulcherrima Harper	Cabombaceae	Nymphaeales
orbicular whitetop	Lepidium chalepense L.	Brassicaceae	Capparales
curly plumeless thistle	Carduus crispus L.	Asteraceae	Asterales
hoary cress	Lepidium draba (L.) Desv	Brassicaceae	Capparales
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
smallseed falseflax	Camelina microcarpa DC.	Brassicaceae	Capparales
nodding plumeless thistle	Carduus nutans leiophyllus (Petrovic) Stojanov & Stef	Asteraceae	Asterales
texasweed	Caperonia palustris (L.) St.-Hil.	Euphorbiaceae	Euphorbiales
hairy whitetop	Cardaria pubescens (C.A. Mey.)	Brassicaceae	Capparales
creeping bellflower	Campanula rapunculoides L.	Campanulaceae	Campanulales
marijuana	Cannabis sativa L	Cannabaceae	Urticales
purple starthistle	Centaurea calcitrapa L.	Asteraceae	Asterales
cornflower	Centaurea cyanus L.	Asteraceae	Asterales
common mouse-ear chickweed	Cerastium fontanum Baumg.	Caryophyllaceae	Caryophyllales
big chickweed	Cerastium fontanum ssp. vulgare (Hartman) Greuter & Burdet	Caryophyllaceae	Caryophyllales
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
black knapweed	Centaurea nigra L.	Asteraceae	Asterales
alpine knapweed	Centaurea nigrescens Willd	Asteraceae	Asterales
sulphur knapweed	Centaurea sulphurea Willd	Asteraceae	Asterales
bur buttercup	Ceratocephala testiculata (Crantz) Bess.	Ranunculaceae	Ranunculales
lambsquarters	Chenopodium album L	Chenopodiaceae	Caryophyllales
mexicantea	Dysphania ambrosioides (L.) Mosyakin & Clemants	Chenopodiaceae	Caryophyllales
spotted spurge	Euphorbia maculata (L.) Small	Euphorbiaceae	Euphorbiales
dwarf snapdragon	Chaenorhinum minus (L.) Lange	Scrophulariaceae	Scrophulariales
nettleleaf goosefoot	Chenopodium murale L.	Chenopodiaceae	Caryophyllales
giantseed goosefoot	Chenopodium simplex (Torr.) Raf.	Chenopodiaceae	Caryophyllales
blue mustard	Chorispora tenella (Pallas) DC.	Brassicaceae	Capparales
chicory	Cichorium intybus L.	Asteraceae	Asterales
spotted waterhemlock	Cicuta maculata L.	Apiaceae	Apiales
yellowspine thistle	Cirsium ochrocentrum Gray	Asteraceae	Asterales
wavyleaf thistle	Cirsium undulatum (Nutt.) Spreng	Asteraceae	Asterales
garden cosmos	Cosmos bipinnatus Cav.	Asteraceae	Asterales
hairy fleabane	Conyza bonariensis (L.) Cronquist	Asteraceae	Asterales
horseweed	Conyza canadensis (L.) Cronq.	Asteraceae	Asterales
Asiatic dayflower	Commelina communis L.	Commelinaceae	Commelinales
lesser swinecress	Coronopus didymus (L.) Sm.	Brassicaceae	Capparales
coco yam, wild taro	Colocasia esculenta (L.) Schott	Araceae	Arales
European lily of the valley	Convallaria majalis L.	Liliaceae	Liliales
greater swinecress	Coronopus squamatus (Forsk.) Aschers.	Brassicaceae	Capparales
sulphur cosmos	Cosmos sulphureus Cav.	Asteraceae	Asterales
smooth hawksbeard	Crepis capillaris (L.) Wallr	Asteraceae	Asterales
swamp stonecrop	Crassula helmsii A. Berger	Crassulaceae	Rosales
showy rattlebox	Crotalaria spectabilis Roth	Fabaceae (Leguminosae)	Fabales
narrowleaf hawksbeard	Crepis tectorum L.	Asteraceae	Asterales
cardoon	Cynara cardunculus L.	Asteraceae	Asterales
houndstongue	Cynoglossum officinale L.	Boraginaceae	Lamiales
Queen Anne's lace, wild carrot	Daucus carota L.	Apiaceae	Apiales
wild carrot	Daucus carota ssp. carota L.	Apiaceae	Apiales
jimsonweed	Datura stramonium L.	Solanaceae	Solanales
cape ivy	Delairea odorata Lem	Asteraceae	Asterales
Japanese false spleenwort	Deparia petersenii (Kunze) M. Kato	Dryopteridaceae	Polypodiales
flixweed	Descurainia sophia (L.) Webb ex Prantl	Brassicaceae	Capparales
Deptford pink	Dianthus armeria L.	Caryophyllaceae	Caryophyllales
Fuller's teasel	Dipsacus fullonum ssp. fullonum L.	Dipsacaceae	Dipsacales
Fuller's teasel	Dipsacus fullonum ssp. sylvestris (Huds.) Clapham	Dipsacaceae	Dipsacales
cutleaf teasel	Dipsacus laciniatus L.	Dipsacaceae	Dipsacales
foxglove	Digitalis purpurea L.	Scrophulariaceae	Scrophulariales
Fuller's teasel	Dipsacus sativus (L.) Honckeny	Dipsacaceae	Dipsacales
spring whitlowgrass	Draba verna L.	Brassicaceae	Capparales
eclipta	Eclipta prostrata (L.) L.	Asteraceae	Asterales
blueweed	Echium vulgare L.	Boraginaceae	Lamiales
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
cutleaf burnweed	Erechtites glomeratus (Desf. ex Poir.) DC.	Asteraceae	Asterales
Australian burnweed	Erechtites minimus (Poir.) DC	Asteraceae	Asterales
California poppy	Eschscholzia californica Cham	Papaveraceae	Papaverales
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
mulberryweed	Fatoua villosa (Thunb.) Nakai	Moraceae	Urticales
fennel	Foeniculum vulgare P. Mill.	Apiaceae	Apiales
Drummond's beeblossom	Gaura drummondii (Spach) Torr. & Gray	Onagraceae	Myrtales
purple cudweed	Gamochaeta purpurea (L.) Cabrera	Asteraceae	Asterales
hairy galinsoga	Galinsoga quadriradiata Cav	Asteraceae	Asterales
wavyleaf gaura	Gaura sinuata Nutt. ex Ser	Onagraceae	Myrtales
cutleaf geranium	Geranium dissectum L.	Geraniaceae	Geraniales
babysbreath	Gypsophila paniculata L	Caryophyllaceae	Caryophyllales
halogeton	Halogeton glomeratus (Bieb.) C.A. Mey.	Chenopodiaceae	Caryophyllales
common sunflower	Helianthus annuus L.	Asteraceae	Asterales
Texas blueweed	Helianthus ciliaris DC.	Asteraceae	Asterales
white garland-lily	Hedychium coronarium Koenig	Zingiberaceae	Zingiberales
cream garland-lily	Hedychium flavescens Carey ex Roscoe	Zingiberaceae	Zingiberales
Kahila garland-lily	Hedychium gardnerianum Shepard ex Ker-Gawl.	Zingiberaceae	Zingiberales
damesrocket	Hesperis matronalis L.	Brassicaceae	Capparales
common tarweed	Centromadia pungens ssp. pungens (Hook. & Arn.) Greene	Asteraceae	Asterales
Canadian hawkweed	Hieracium canadense Michx.	Asteraceae	Asterales
Venice mallow	Hibiscus trionum L.	Malvaceae	Malvales
black henbane	Hyoscyamus niger L.	Solanaceae	Solanales
hairy cat's ear	Hypochaeris radicata L.	Asteraceae	Asterales
Douglas iris	Iris douglasiana Herbert	Iridaceae	Liliales
Rocky Mountain iris	Iris missouriensis Nutt.	Iridaceae	Liliales
yellowflag iris	Iris pseudacorus L.	Iridaceae	Liliales
Mexican fireweed	Kochia scoparia (L.) A.J. Scott	Chenopodiaceae	Caryophyllales
Korean lespedeza	Kummerowia stipulacea (Maxim.) Makino	Fabaceae (Leguminosae)	Fabales
common lespedeza	Kummerowia striata (Thunb.) Schindl.	Fabaceae (Leguminosae)	Fabales
henbit	Lamium amplexicaule L.	Lamiaceae	Lamiales
nipplewort	Lapsana communis L.	Asteraceae	Asterales
prickly lettuce	Lactuca serriola L.	Asteraceae	Asterales
blue lettuce	Lactuca tatarica var. pulchella (Pursh) Breitung	Asteraceae	Asterales
motherwort	Leonurus cardiaca L.	Lamiaceae	Lamiales
lepyrodiclis	Lepyrodiclis holosteoides (C.A. Mey.) Fenzl ex Fisch. & C.A. Mey.	Caryophyllaceae	Caryophyllales
perennial pepperweed	Lepidium latifolium L.	Brassicaceae	Capparales
clasping pepperweed	Lepidium perfoliatum L.	Brassicaceae	Capparales
Virginia pepperweed	Lepidium virginicum L.	Brassicaceae	Capparales
oxeye daisy	Leucanthemum vulgare Lam.	Asteraceae	Asterales
Dalmatian toadflax	Linaria dalmatica (L.) P. Mill.	Scrophulariaceae	Scrophulariales
birdsfoot trefoil	Lotus corniculatus L.	Fabaceae (Leguminosae)	Fabales
creeping waterprimrose	Ludwigia peploides (Kunth) Raven	Onagraceae	Myrtales
hyssop loosestrife	Lythrum hyssopifolium L.	Lythraceae	Myrtales
moneywort	Lysimachia nummularia L.	Primulaceae	Primulales
European wand loosestrife	Lythrum virgatum L.	Lythraceae	Myrtales
garden loosestrife	Lysimachia vulgaris L.	Primulaceae	Primulales
pineapple-weed	Matricaria discoidea DC.	Asteraceae	Asterales
alkali mallow	Malvella leprosa (Ortega) Krapov.	Malvaceae	Malvales
common mallow	Malva neglecta Wallr.	Malvaceae	Malvales
coast tarweed	Madia sativa Molina	Asteraceae	Asterales
crystalline iceplant	Mesembryanthemum crystallinum L.	Aizoaceae	Caryophyllales
black medic	Medicago lupulina L.	Fabaceae (Leguminosae)	Fabales
yellow sweetclover	Melilotus officinalis (L.) Lam.	Fabaceae (Leguminosae)	Fabales
peppermint	Mentha x piperita L. (pro sp.)	Lamiaceae	Lamiales
pennyroyal	Mentha pulegium L.	Lamiaceae	Lamiales
spearmint	Mentha spicata L.	Lamiaceae	Lamiales
wild four-o'clock	Mirabilis nyctaginea (Michx.) MacM.	Nyctaginaceae	Caryophyllales
miniature beefsteakplant	Mosla dianthera (Buch.-Ham. ex Roxb.) Maxim.	Lamiaceae	Lamiales
common grape hyacinth	Muscari botryoides (L.) P. Mill.	Liliaceae	Liliales
starch grape hyacinth	Muscari neglectum Guss. ex Ten.	Liliaceae	Liliales
true forget-me-not	Myosotis scorpioides L.	Boraginaceae	Lamiales
catnip	Nepeta cataria L.	Lamiaceae	Lamiales
narrow swordfern	Nephrolepis cordifolia (L.) C. Presl	Dryopteridaceae	Polypodiales
Asian swordfern	Nephrolepis brownii (Desv.) Hovenkamp & Miyam.	Dryopteridaceae	Polypodiales
apple-of-Peru	Nicandra physalodes (L.) Gaertn.	Solanaceae	Solanales
Mexican waterlily	Nymphaea mexicana Zucc.	Nymphaeaceae	Nymphaeales
cutleaf evening-primrose	Oenothera laciniata Hill	Onagraceae	Myrtales
monk orchid	Oeceoclades maculata (Lindl.) Lindl.	Orchidaceae	Orchidales
foxtail restharrow	Ononis alopecuroides L.	Fabaceae (Leguminosae)	Fabales
bull cottonthistle	Onopordum tauricum Willd.	Asteraceae	Asterales
desert broomrape	Orobanche cooperi (Gray) Heller	Orobanchaceae	Scrophulariales
star-of-Bethlehem	Ornithogalum umbellatum L.	Liliaceae	Liliales
yellow woodsorrel	Oxalis stricta L.	Oxalidaceae	Geraniales
wild parsnip	Pastinaca sativa L.	Apiaceae	Apiales
opium poppy	Papaver somniferum L.	Papaveraceae	Papaverales
African rue	Peganum harmala L.	Zygophyllaceae	Sapindales
common pokeweed	Phytolacca americana L.	Phytolaccaceae	Caryophyllales
longleaf groundcherry	Physalis longifolia var. longifolia Nutt.	Solanaceae	Solanales
smooth groundcherry	Physalis longifolia var. subglabrata (Mack. & Bush) Cronquist	Solanaceae	Solanales
chamber bitter	Phyllanthus urinaria L.	Euphorbiaceae	Euphorbiales
starhair groundcherry	Physalis viscosa L.	Solanaceae	Solanales
hawkweed oxtongue	Picris hieracioides L.	Asteraceae	Asterales
bracted plantain	Plantago aristata Michx.	Plantaginaceae	Plantaginales
buckhorn plantain	Plantago lanceolata L.	Plantaginaceae	Plantaginales
broadleaf plantain	Plantago major L.	Plantaginaceae	Plantaginales
water knotweed	Polygonum amphibium L.	Polygonaceae	Polygonales
longroot smartweed	Polygonum amphibium var. emersum Michx.	Polygonaceae	Polygonales
Oriental lady's thumb	Persicaria longiseta (Bruijn) Kitagawa	Polygonaceae	Polygonales
pale smartweed	Persicaria lapathifolia (L.) S.F. Gray	Polygonaceae	Polygonales
common purslane	Portulaca oleracea L.	Portulacaceae	Caryophyllales
princess-feather	Persicaria orientalis (L.) Spach	Polygonaceae	Polygonales
ladysthumb	Persicaria maculosa S.F. Gray	Polygonaceae	Polygonales
cultivated knotweed	Persicaria wallichii Greuter & Burdet	Polygonaceae	Polygonales
Sakhalin knotweed	Fallopia sachalinensis F. Schmidt ex Maxim.	Polygonaceae	Polygonales
devil's-claw	Proboscidea louisianica (P. Mill.) Thellung	Pedaliaceae	Scrophulariales
healall	Prunella vulgaris L.	Lamiaceae	Lamiales
ladder brake	Pteris vittata L.	Pteridaceae	Polypodiales
tall buttercup	Ranunculus acris L.	Ranunculaceae	Ranunculales
bulbous buttercup	Ranunculus bulbosus L.	Ranunculaceae	Ranunculales
wild radish	Raphanus raphanistrum L.	Brassicaceae	Capparales
creeping buttercup	Ranunculus repens L.	Ranunculaceae	Ranunculales
radish	Raphanus sativus L.	Brassicaceae	Capparales
Austrian fieldcress	Rorippa austriaca (Crantz) Bess.	Brassicaceae	Capparales
yellow fieldcress	Rorippa sylvestris (L.) Bess.	Brassicaceae	Capparales
red sorrel	Rumex acetosella L.	Polygonaceae	Polygonales
pale dock	Rumex altissimus Wood	Polygonaceae	Polygonales
curly dock	Rumex crispus L.	Polygonaceae	Polygonales
curly dock	Rumex crispus ssp. crispus L.	Polygonaceae	Polygonales
broadleaf dock	Rumex obtusifolius L.	Polygonaceae	Polygonales
slender Russian thistle	Salsola collina Pallas	Chenopodiaceae	Caryophyllales
grassy arrowhead	Sagittaria graminea Michx.	Alismataceae	Alismatales
iguanatail	Sansevieria hyacinthoides (L.) Druce	Liliaceae	Liliales
Russian thistle	Salsola kali L.	Chenopodiaceae	Caryophyllales
California arrowhead	Sagittaria montevidensis Cham. & Schlecht.	Alismataceae	Alismatales
bouncingbet	Saponaria officinalis L.	Caryophyllaceae	Caryophyllales
barbwire Russian-thistle	Salsola paulsenii Litv.	Chenopodiaceae	Caryophyllales
Russian-thistle	Salsola tragus L.	Chenopodiaceae	Caryophyllales
common goldenthistle	Scolymus hispanicus L.	Asteraceae	Asterales
bigpod sesbania	Sesbania herbacea (P. Mill.) McVaugh	Fabaceae (Leguminosae)	Fabales
Madagascar ragwort	Senecio madagascariensis Poir.	Asteraceae	Asterales
sicklepod	Senna obtusifolia (L.) Irwin & Barneby	Fabaceae (Leguminosae)	Fabales
coffee senna	Senna occidentalis (L.) Link	Fabaceae (Leguminosae)	Fabales
oxford ragwort	Senecio squalidus L.	Asteraceae	Asterales
common groundsel	Senecio vulgaris L.	Asteraceae	Asterales
tumble mustard	Sisymbrium altissimum L.	Brassicaceae	Capparales
wild mustard	Sinapis arvensis L.	Brassicaceae	Capparales
London rocket	Sisymbrium irio L.	Brassicaceae	Capparales
bladder campion	Silene latifolia ssp. alba (Mill.) Greuter & Burdet	Caryophyllaceae	Caryophyllales
nightflowering catchfly	Silene noctiflora L.	Caryophyllaceae	Caryophyllales
hedge mustard	Sisymbrium officinale (L.) Scop.	Brassicaceae	Capparales
bladder campion	Silene vulgaris (Moench) Garcke	Caryophyllaceae	Caryophyllales
perennial sowthistle	Sonchus arvensis L.	Asteraceae	Asterales
field sowthistle	Sonchus arvensis ssp. arvensis L.	Asteraceae	Asterales
spiny sowthistle	Sonchus asper (L.) Hill	Asteraceae	Asterales
heaftleaf horsenettle	Solanum cardiophyllum Lindl.	Solanaceae	Solanales
horsenettle	Solanum carolinense L.	Solanaceae	Solanales
robust horsenettle	Solanum dimidiatum Raf.	Solanaceae	Solanales
twoleaf nightshade	Solanum diphyllum L.	Solanaceae	Solanales
Jamaican nightshade	Solanum jamaicense P. Mill.	Solanaceae	Solanales
annual sowthistle	Sonchus oleraceus L.	Asteraceae	Asterales
hairy nightshade	Solanum physalifolium Rusby	Solanaceae	Solanales
buffalobur	Solanum rostratum Dunal	Solanaceae	Solanales
lawn burweed	Soliva sessilis Ruiz & Pavón	Asteraceae	Asterales
cutleaf nightshade	Solanum triflorum Nutt.	Solanaceae	Solanales
simplestem bur-reed	Sparganium erectum ssp. stoloniferum (Graebn.) H. Hara	Sparganiaceae	Typhales
crab's-claw	Stratiotes aloides L.	Hydrocharitaceae	Hydrocharitales
denseflower witchweed	Striga densiflora (Benth.) Benth.	Scrophulariaceae	Scrophulariales
Florida betony	Stachys floridana Shuttlw. ex Benth.	Lamiaceae	Lamiales
prickly comfrey	Symphytum asperum Lepechin	Boraginaceae	Lamiales
wild marigold	Tagetes minuta L.	Asteraceae	Asterales
common tansy	Tanacetum vulgare L.	Asteraceae	Asterales
incised halberd fern	Tectaria incisa Cav.	Dryopteridaceae	Polypodiales
field pennycress	Thlaspi arvense L.	Brassicaceae	Capparales
hedgeparsley	Torilis arvensis (Huds.) Link	Apiaceae	Apiales
spreading hedgeparsley	Torilis arvensis ssp. arvensis (Huds.) Link	Apiaceae	Apiales
rabbitfoot clover	Trifolium arvense L.	Fabaceae (Leguminosae)	Fabales
large hop clover	Trifolium campestre Schreb.	Fabaceae (Leguminosae)	Fabales
western salsify	Tragopogon dubius Scop.	Asteraceae	Asterales
white-flowered spiderwort	Tradescantia fluminensis Vell.	Commelinaceae	Commelinales
false chamomile	Tripleurospermum perforatum (Merat) M. Lainz	Asteraceae	Asterales
white clover	Trifolium repens L.	Fabaceae (Leguminosae)	Fabales
boatlily	Tradescantia spathacea Sw.	Commelinaceae	Commelinales
coltsfoot	Tussilago farfara L.	Asteraceae	Asterales
Caesarweed	Urena lobata L.	Malvaceae	Malvales
common valerian	Valeriana officinalis L.	Valerianaceae	Dipsacales
corn speedwell	Veronica arvensis L.	Scrophulariaceae	Scrophulariales
twolobe speedwell	Veronica biloba L.	Scrophulariaceae	Scrophulariales
moth mullein	Verbascum blattaria L.	Scrophulariaceae	Scrophulariales
crownbeard	Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray	Asteraceae	Asterales
common vetch	Vicia sativa Linnaeus	Fabaceae (Leguminosae)	Fabales
spiny cocklebur	Xanthium spinosum 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
Brazilian vervain	Verbena incompta P. W. Michael	Verbenaceae	Lamiales
salsola	Salsola spp. L.	Chenopodiaceae	Caryophyllales
clover	Trifolium spp. L.	Fabaceae (Leguminosae)	Fabales
lettuce	Lactuca sativa L.	Asteraceae	Asterales
alectra	Alectra vogelii Benth.	Orobanchaceae	Scrophulariales
knapweeds	Centaurea spp. L.	Asteraceae	Asterales
woodland strawberry	Fragaria vesca L.	Rosaceae	Rosales
carpet bugle	Ajuga reptans L.	Lamiaceae	Lamiales
onions	Allium spp. L.	Liliaceae	Liliales
thymeleaf sandwort	Arenaria serpyllifolia L.	Caryophyllaceae	Caryophyllales
rattlebox	Crotalaria spp. L.	Fabaceae (Leguminosae)	Fabales
blessed thistle	Cnicus benedictus L.	Asteraceae	Asterales
piedmont bedstraw	Cruciata pedemontana (Bellardi) Ehrend.	Rubiaceae	Rubiales
Indian mock-strawberry	Duchesnea indica (Andr.) Focke	Rosaceae	Rosales
willowleaf lettuce	Lactuca saligna L.	Asteraceae	Asterales
Thunberg lespedeza	Lespedeza thunbergii (DC.) Nakai	Fabaceae (Leguminosae)	Fabales
Mascarene Island leaf-flower	Phyllanthus tenellus Roxb.	Euphorbiaceae	Euphorbiales
dock	Rumex spp. L.	Polygonaceae	Polygonales
tall vervain	Verbena bonariensis L.	Verbenaceae	Lamiales
ivyleaf speedwell	Veronica hederifolia L.	Scrophulariaceae	Scrophulariales
cocklebur	Xanthium spp. L.	Asteraceae	Asterales
basketplant	Callisia fragrans (Lindl.) Woods	Commelinaceae	Commelinales
hairy indigo	Indigofera hirsuta L.	Fabaceae (Leguminosae)	Fabales
arrowleaf elephant's ear	Xanthosoma sagittifolium (L.) Schott	Araceae	Arales
cape tulip	Homeria spp. Vent.	Iridaceae	Liliales
little mallow	Malva parviflora L.	Malvaceae	Malvales
milkthistle	Silybum spp. Adans	Asteraceae	Asterales
hollyhock	Alcea rosea L.	Malvaceae	Malvales
Asiatic hawksbeard	Youngia japonica (L.) DC.	Asteraceae	Asterales
bishops goutweed	Aegopodium podagraria L.	Apiaceae	Apiales
narrowleaf bittercress	Cardamine impatiens L.	Brassicaceae	Capparales
carline thistle	Carlina vulgaris L.	Asteraceae	Asterales
boreal chickweed	Cerastium tomentosum L.	Caryophyllaceae	Caryophyllales
greater celandine	Chelidonium majus L.	Papaveraceae	Papaverales
smooth bedstraw	Cruciata laevipes Opiz	Rubiaceae	Rubiales
slender snakecotton	Froelichia gracilis (Hook.) Moq.	Amaranthaceae	Caryophyllales
smooth bedstraw	Galium mollugo L.	Rubiaceae	Rubiales
smallflower galinsoga	Galinsoga parviflora Cav.	Asteraceae	Asterales
yellow bedstraw	Galium verum L.	Rubiaceae	Rubiales
longstalk cranesbill	Geranium columbinum L.	Geraniaceae	Geraniales
yellow daylily	Hemerocallis lilioasphodelus L.	Liliaceae	Liliales
spotted deadnettle	Lamium maculatum L.	Lamiaceae	Lamiales
creeping liriope	Liriope spicata (Thunb.) Lour.	Liliaceae	Liliales
Chinese lobelia	Lobelia chinensis Lour.	Campanulaceae	Campanulales
meadow campion	Silene flos-cuculi (L.) Clairv.	Caryophyllaceae	Caryophyllales
water starwort	Myosoton aquaticum (L.) Moench	Caryophyllaceae	Caryophyllales
Morison's spurry	Spergula morisonii Boreau	Caryophyllaceae	Caryophyllales
rock dandelion	Taraxacum laevigatum (Willd.) DC.	Asteraceae	Asterales
meadow salsify	Tragopogon lamottei L.	Asteraceae	Asterales
hop clover	Trifolium aureum Pollich	Fabaceae (Leguminosae)	Fabales
small hop clover	Trifolium dubium Sibthorp	Fabaceae (Leguminosae)	Fabales
red clover	Trifolium pratense L.	Fabaceae (Leguminosae)	Fabales
European speedwell	Veronica beccabunga L.	Scrophulariaceae	Scrophulariales
thymeleaf speedwell	Veronica serpyllifolia L.	Scrophulariaceae	Scrophulariales
monkeygrass	Liriope muscari (Dcne.) Bailey	Liliaceae	Liliales
beach wormwood	Artemisia stelleriana Bess.	Asteraceae	Asterales
heather	Calluna vulgaris (L.) Hull	Ericaceae	Ericales
woodland forget-me-not	Myosotis sylvatica Ehrh. ex Hoffmann	Boraginaceae	Lamiales
herb bennet	Geum urbanum L.	Rosaceae	Rosales
sweetscented bedstraw	Galium odoratum (L.) Scop.	Rubiaceae	Rubiales
common hempnettle	Galeopsis tetrahit L.	Lamiaceae	Lamiales
helleborine	Epipactis helleborine (L.) Crantz	Orchidaceae	Orchidales
elecampane	Inula helenium L.	Asteraceae	Asterales
herb-robert	Geranium robertianum L.	Geraniaceae	Geraniales
yellow devil hawkweed	Hieracium x floribundum Wimmer & Grab. [caespitosum x lactucella]	Asteraceae	Asterales
kingdevil hawkweed	Hieracium piloselloides Vill.	Asteraceae	Asterales
salvation jane	Echium plantagineum L.	Boraginaceae	Lamiales
annual yellow sweetclover	Melilotus indicus (L.) All.	Fabaceae (Leguminosae)	Fabales
meadow sage	Salvia pratensis L.	Lamiaceae	Lamiales
Europe sage	Salvia sclarea L.	Lamiaceae	Lamiales
spurge flax	Thymelaea passerina (L.) Coss. & Germ.	Thymelaeaceae	Myrtales
Japanese hedgeparsley	Torilis japonica (Houtt.) DC.	Apiaceae	Apiales
water speedwell	Veronica anagallis-aquatica L.	Scrophulariaceae	Scrophulariales
thistle	Cirsium spp. P. Mill.	Asteraceae	Asterales
marsh thistle	Cirsium palustre (L.) Scop.	Asteraceae	Asterales
crested latesummer mint	Elsholtzia ciliata (Thunb.) Hyl.	Lamiaceae	Lamiales
Thunberg's geranium	Geranium thunbergii Sieb. & Zucc. ex Lindl. & Paxton	Geraniaceae	Geraniales
yellow hornpoppy	Glaucium flavum Crantz	Papaveraceae	Papaverales
common frogbit	Hydrocharis morsus-ranae L.	Hydrocharitaceae	Hydrocharitales
ornamental jewelweed	Impatiens glandulifera Royle	Balsaminaceae	Geraniales
European pepperwort	Marsilea quadrifolia L.	Marsileaceae	Hydropteridales
cup rosinweed	Silphium perfoliatum L.	Asteraceae	Asterales
Japanese thistle	Cirsium japonicum Fisch. ex DC.	Asteraceae	Asterales
Geraldton carnation weed	Euphorbia terracina L.	Euphorbiaceae	Euphorbiales
Indian marshweed	Limnophila indica (L.) Druce	Scrophulariaceae	Scrophulariales
Illyrian cottonthistle	Onopordum illyricum L.	Asteraceae	Asterales
sensitive partridgepea	Chamaecrista nictitans (L.) Moench	Fabaceae (Leguminosae)	Fabales
American burnweed	Erechtites hieraciifolius (L.) Raf. ex DC.	Asteraceae	Asterales
tall lettuce	Lactuca canadensis L.	Asteraceae	Asterales
horse thistle	Onopordum acaulon L.	Asteraceae	Asterales
wall lettuce	Mycelis muralis (L.) Dumort.	Asteraceae	Asterales
common comfrey	Symphytum officinale L.	Boraginaceae	Lamiales
European sticktight	Lappula squarrosa (Retz.) Dumort.	Boraginaceae	Lamiales
alsike clover	Trifolium hybridum L.	Fabaceae (Leguminosae)	Fabales
moss vervain	Glandularia pulchella (Sweet) Troncoso	Verbenaceae	Lamiales
Asiatic pennywort	Centella asiatica (L.) Urban	Apiaceae	Apiales
field madder	Sherardia arvensis L.	Rubiaceae	Rubiales
rough maidenhair fern	Adiantum hispidulum Sw.	Pteridaceae	Polypodiales
delta maidenhair	Adiantum raddianum K. Presl	Pteridaceae	Polypodiales
tropic ageratum	Ageratum conyzoides L.	Asteraceae	Asterales
red ginger	Alpinia purpurata (Vieill.) K. Schum.	Zingiberaceae	Zingiberales
Italian bugloss	Anchusa azurea P. Mill.	Boraginaceae	Lamiales
wild celery	Apium graveolens L.	Apiaceae	Apiales
great burdock	Arctium lappa L.	Asteraceae	Asterales
Italian arum	Arum italicum P. Mill.	Araceae	Arales
bamboo orchid	Arundina graminifolia (D. Don) Hochr.	Orchidaceae	Orchidales
bloodflower milkweed	Asclepias curassavica L.	Asclepiadaceae	Gentianales
peregrine saltbush	Atriplex suberecta I. Verd.	Chenopodiaceae	Caryophyllales
scarlet spiderling	Boerhavia coccinea P. mill.	Nyctaginaceae	Caryophyllales
Indian shot	Canna indica L.	Cannaceae	Zingiberales
woodland bittercress	Cardamine flexuosa With.	Brassicaceae	Capparales
field Indian paintbrush	Castilleja arvensis Cham. & Schlecht	Scrophulariaceae	Scrophulariales
European centaury	Centaurium erythraea Rafn	Gentianaceae	Gentianales
red valerian	Centranthus ruber (L.) DC.	Valerianaceae	Dipsacales
garden spurge	Chamaesyce hirta (L.) Millsp.	Euphorbiaceae	Euphorbiales
clammy goosefoot	Dysphania pumilio (R. Br.) Mosyakin & Clemants	Chenopodiaceae	Caryophyllales
star-mustard	Coincya monensis (L.) Greuter & Burdet	Brassicaceae	Capparales
American bugseed	Corispermum americanum var. rydbergii Mosyakin	Chenopodiaceae	Caryophyllales
shiny bugseed	Corispermum nitidum Kit. ex J.A. Schultes	Chenopodiaceae	Caryophyllales
canereed	Costus speciosus (Koenig) Sm.	Costaceae	Zingiberales
southern brassbuttons	Cotula australis (Sieber) Hook. f.	Asteraceae	Asterales
redflower ragleaf	Crassocephalum crepidioides (Benth.) S. Moore	Asteraceae	Asterales
tarweed cuphea	Cuphea carthagenensis (Jacq.) J.F. Macbr.	Lythraceae	Myrtales
little ironweed	Cyanthillium cinereum (L.) H.E. Robins.	Asteraceae	Asterales
threeflower beggarweed	Desmodium triflorum (L.) DC.	Fabaceae (Leguminosae)	Fabales
Grecian foxglove	Digitalis lanata Ehrh.	Scrophulariaceae	Scrophulariales
heartleaf drymary	Drymaria cordata (L.) Willd. ex J.A. Schultes	Caryophyllaceae	Caryophyllales
Cupid's-shaving-brush	Emilia fosbergii D.H. Nicols.	Asteraceae	Asterales
lilac tasselflower	Emilia sonchifolia var. sonchifolia (L.) DC.	Asteraceae	Asterales
Epidendrum ×obrienianum	Epidendrum x obrienianum Rolfe [evectum × ibaguense]	Orchidaceae	Orchidales
aboriginal willowherb	Epilobium billardierianum ssp. cinereum (A. Rich.) P.H. Raven & Engelhorn	Onagraceae	Myrtales
tropical burnweed	Erechtites valerianifolius (Spreng.) DC.	Asteraceae	Asterales
father-and-child plant	Euchiton japonicus (Thunb.) A. Anderb.	Asteraceae	Asterales
petty spurge	Euphorbia peplus L.	Euphorbiaceae	Euphorbiales
queen-of-the-meadow	Filipendula ulmaria (L.) Maxim.	Rosaceae	Rosales
cape bugle-lily	Watsonia borbonica (Pourret) Goldblatt	Iridaceae	Liliales
seashore vervain	Verbena montevidensis Spreng.	Verbenaceae	Lamiales
common salsify	Tragopogon porrifolius L.	Asteraceae	Asterales
tree marigold	Tithonia diversifolia (Hemsl.) Gray	Asteraceae	Asterales
downy maiden fern	Christella dentata (Forssk.) Brownsey & Jermy	Thelypteridaceae	Polypodiales
beach strawberry	Fragaria chiloensis (L.) P. Mill.	Rosaceae	Rosales
woodland strawberry	Fragaria vesca ssp. vesca L.	Rosaceae	Rosales
nodeweed	Synedrella nodiflora (L.) Gaertn.	Asteraceae	Asterales
Jamaica vervain	Stachytarpheta jamaicensis (L.) Vahl	Verbenaceae	Lamiales
cayenne porterweed	Stachytarpheta cayennensis (Rich.) Vahl	Verbenaceae	Lamiales
fieldnettle betony	Stachys arvensis (L.) L.	Lamiaceae	Lamiales
Philippine ground orchid	Spathoglottis plicata Blume	Orchidaceae	Orchidales
currant tomato	Solanum pimpinellifolium Jusl.	Solanaceae	Solanales
oriental mustard	Sisymbrium orientale L.	Brassicaceae	Capparales
English catchfly	Silene gallica L.	Caryophyllaceae	Caryophyllales
common St. Paul's wort	Sigesbeckia orientalis L.	Asteraceae	Asterales
woodland groundsel	Senecio sylvaticus L.	Asteraceae	Asterales
mourningbride	Scabiosa atropurpurea L.	Dipsacaceae	Dipsacales
Australasian geranium	Geranium homeanum Turcz.	Geraniaceae	Geraniales
shining geranium	Geranium lucidum L.	Geraniaceae	Geraniales
bluehead gilia	Gilia capitata Sims	Polemoniaceae	Solanales
telegraphplant	Heterotheca grandiflora Nutt.	Asteraceae	Asterales
Barbados lily	Hippeastrum puniceum (Lam.) Kuntze	Liliaceae	Liliales
shortpod mustard	Hirschfeldia incana (L.) Lagrèze-Fossat	Brassicaceae	Capparales
Mexican tulip poppy	Hunnemannia fumariifolia Sweet	Papaveraceae	Papaverales
whorled pennywort	Hydrocotyle verticillata Thunb.	Apiaceae	Apiales
chandelier plant	Kalanchoe delagoensis Ecklon & Zeyh.	Crassulaceae	Rosales
blue lettuce	Lactuca tatarica (L.) C.A. Mey.	Asteraceae	Asterales
yellow archangel	Lamium galeobdolon (L.) Crantz	Lamiaceae	Lamiales
lesser hawkbit	Leontodon saxatilis ssp. saxatilis L.	Asteraceae	Asterales
narrowleaf dock	Rumex stenophyllus Ledeb.	Polygonaceae	Polygonales
great yellowcress	Rorippa amphibia (L.) Bess.	Brassicaceae	Capparales
white mignonette	Reseda alba L.	Resedaceae	Capparales
turnipweed	Rapistrum rugosum (L.) All.	Brassicaceae	Capparales
hairy bird's-foot trefoil	Lotus subbiflorus Lag.	Fabaceae (Leguminosae)	Fabales
waterpurslane	Ludwigia palustris (L.) Ell.	Onagraceae	Myrtales
annual honesty	Lunaria annua L.	Brassicaceae	Capparales
swordfern	Macrothelypteris torresiana (Gaud.) Ching	Thelypteridaceae	Polypodiales
Malcolm stock	Malcolmia africana (L.) Ait. f.	Brassicaceae	Capparales
Jersey cudweed	Pseudognaphalium luteoalbum (L.) Hilliard & Burtt	Asteraceae	Asterales
dog's-tongue	Pseudelephantopus spicatus (Juss. ex Aubl.) C.F. Baker	Asteraceae	Asterales
threelobe false mallow	Malvastrum coromandelianum (L.) Garcke	Malvaceae	Malvales
lemon balm	Melissa officinalis L.	Lamiaceae	Lamiales
apple-mint	Mentha x villosa Huds. (pro sp.) [spicata × suaveolens]	Lamiaceae	Lamiales
slenderleaf iceplant	Mesembryanthemum nodiflorum L.	Aizoaceae	Caryophyllales
shameplant	Mimosa pudica var. unijuga (Duchass. & Walp.) Griseb.	Fabaceae (Leguminosae)	Fabales
common four-o'clock	Mirabilis jalapa L.	Nyctaginaceae	Caryophyllales
fishtail swordfern	Nephrolepis falcata (Cav.) C. Christens.	Dryopteridaceae	Polypodiales
dotted smartweed	Persicaria punctata (Ell.) Small	Polygonaceae	Polygonales
silversheath knotweed	Polygonum argyrocoleon Steud. Ex Kunze	Polygonaceae	Polygonales
fourleaf manyseed	Polycarpon tetraphyllum (L.) L.	Caryophyllaceae	Caryophyllales
Mexican plantain	Plantago australis Lam.	Plantaginaceae	Plantaginales
Dixie silverback fern	Pityrogramma calomelanos (L.) Link	Pteridaceae	Polypodiales
redsepal evening-primrose	Oenothera glazioviana Micheli	Onagraceae	Myrtales
nodding star-of-Bethlehem	Ornithogalum nutans L.	Liliaceae	Liliales
pink woodsorrel	Oxalis debilis var. corymbosa (DC.) Lourteig	Oxalidaceae	Geraniales
yellow glandweed	Parentucellia viscosa (L.) Caruel	Scrophulariaceae	Scrophulariales
artilleryweed	Pilea microphylla (L.) Liebm.	Urticaceae	Urticales
Virginia groundcherry	Physalis virginiana var. virginiana Mill.	Solanaceae	Solanales
parsley	Petroselinum crispum (P. Mill.) Nyman ex A.W. Hill	Apiaceae	Apiales
hairypink	Petrorhagia dubia (Raf.) G. López & Romo	Caryophyllaceae	Caryophyllales
golden polypody	Phlebodium aureum (L.) J. Sm.	Polypodiaceae	Polypodiales
monarch fern	Phymatosorus scolopendria (Burm. f.) Copeland	Polypodiaceae	Polypodiales
Japanese chaff flower	Achyranthes japonica (Miq.) Nakai	Amaranthaceae	Caryophyllales
alyceclover	Alysicarpus vaginalis (L.) DC.	Fabaceae (Leguminosae)	Fabales
watercress	Nasturtium officinale Ait. f.	Brassicaceae	Capparales
dwarf waterclover	Marsilea minuta L.	Marsileaceae	Hydropteridales
bagpod	Sesbania vesicaria (Jacq.) Ell.	Fabaceae (Leguminosae)	Fabales
Browne's blechum	Blechum pyramidatum (Lam.) Urban	Acanthaceae	Scrophulariales
primrose-willow	Ludwigia peruviana (L.) Hara	Onagraceae	Myrtales
mudmat	Glossostigma diandrum (L.) Kuntze	Scrophulariaceae	Scrophulariales
Hill mustard	Bunias orientalis L.	Brassicaceae	Capparales
Kenilworth ivy	Cymbalaria muralis P.G. Gaertn., B. Mey. & Scherb.	Scrophulariaceae	Scrophulariales
plumeless thistle	Carduus spp. L.	Asteraceae	Asterales
nightblooming cactus	Hylocereus undatus (Haw.) Britt. & Rose	Cactaceae	Caryophyllales
daylily	Hemerocallis spp. L.	Liliaceae	Liliales
widow's-thrill	Kalanchoe spp. Adans.	Crassulaceae	Rosales
redhot poker	Kniphofia uvaria (L.) Oken	Liliaceae	Liliales
Siberian squill	Scilla siberica Haw.	Liliaceae	Liliales
spiderwort	Tradescantia spp. L.	Commelinaceae	Commelinales
large-flower primrose-willow	Ludwigia grandiflora grandiflora (M. Micheli) Greuter & Burdet	Onagraceae	Myrtales
water primrose	Ludwigia grandiflora ssp. hexapetala (Hook. & Arn.) Nesom & Kartesz	Onagraceae	Myrtales
Sacred lotus	Nelumbo nucifera Gaertn.	Nelumbonaceae	Nymphaeales
southern meadow sage	Salvia virgata Jacq.	Lamiaceae	Lamiales
thoroughwort pennycress	Microthlaspi perfoliatum (L.) F.K. Mey.	Brassicaceae	Capparales
queen-devil hawkweed	Hieracium glomeratum Froel.	Asteraceae	Asterales
smooth hawkweed	Hieracium laevigatum	Asteraceae	Asterales
floating bladderwort	Utricularia inflata Walter	Lentibulariaceae	Scrophulariales
European sea-rocket	Cakile maritima Scop.	Brassicaceae	Capparales
sea fig	Carpobrotus chilensis (Molina) N.E. Br.	Aizoaceae	Caryophyllales
crowndaisy	Glebionis coronaria (L.) Tzvelev	Asteraceae	Asterales
brassbuttons	Cotula coronopifolia L.	Asteraceae	Asterales
montbretia	Crocosmia x crocosmiiflora (V. Lemoine) N.E. Br. [aurea × pottsii]	Iridaceae	Liliales
stinkwort	Dittrichia graveolens (L.) W. Greuter	Asteraceae	Asterales
common hawkweed	Hieracium lachenalii K.C. Gmel.	Asteraceae	Asterales
dotted duckmeat	Landoltia punctata (G.F.W. Mey.) D.H. Les & D.J. Crawford	Lemnaceae	Arales
sweet alyssum	Lobularia maritima (L.) Desv.	Brassicaceae	Capparales
European bugleweed	Lycopus europaeus L.	Lamiaceae	Lamiales
broadleaf forget-me-not	Myosotis latifolia Poir.	Boraginaceae	Lamiales
buttercup oxalis	Oxalis pes-caprae L.	Oxalidaceae	Geraniales
bristly oxtongue	Helminthotheca echioides (L.) Holub	Asteraceae	Asterales
oppositeleaf Russian thistle	Salsola soda L.	Chenopodiaceae	Caryophyllales
rose clover	Trifolium hirtum All.	Fabaceae (Leguminosae)	Fabales
bulbil bugle-lily	Watsonia meriana (L.) P. Mill.	Iridaceae	Liliales
calla lily	Zantedeschia aethiopica (L.) Spreng.	Araceae	Arales
hemp sesbania	Sesbania exaltata (Raf.) Rydb. ex A. W. Hill	Fabaceae (Leguminosae)	Fabales
squarrose knapweed	Centaurea virgata ssp. squarrosa Lam.	Asteraceae	Asterales
garden baby's-breath	Gypsophila scorzonerifolia Ser.	Caryophyllaceae	Caryophyllales
onerow yellowcress	Nasturtium microphyllum Boenn. ex Rchb.	Brassicaceae	Capparales
denseflower knotweed	Persicaria glabra (Willd.) M. Gómez	Polygonaceae	Polygonales
common coleus	Solenostemon scutellarioides (L.) Codd	Lamiaceae	Lamiales
plantains	Plantago spp. L.	Plantaginaceae	Plantaginales
sowthistle	Sonchus spp. L.	Asteraceae	Asterales
South African ragwort	Senecio inaequidens DC.	Asteraceae	Asterales
sweetclover	Melilotus spp. Mill.	Fabaceae (Leguminosae)	Fabales
South American skullcap	Scutellaria racemosa Pers.	Lamiaceae	Lamiales
slender sowthistle	Sonchus tenerrimus L.	Asteraceae	Asterales
Brazilian waterhyssop	Bacopa egensis (Poepp.) Pennell	Scrophulariaceae	Scrophulariales
beckett's water trumpet	Cryptocoryne beckettii Thwaites ex Trimen.	Araceae	Arales
cape blue waterlily	Nymphaea capensis Thunb.	Nymphaeaceae	Nymphaeales
bur chervil	Anthriscus caucalis M. Bieb.	Apiaceae	Apiales
Mexican brassbuttons	Cotula mexicana (DC.) Cabrera	Asteraceae	Asterales
smooth cat's ear	Hypochaeris glabra L.	Asteraceae	Asterales
Asian netvein hollyfern	Cyrtomium fortunei J. Sm.	Dryopteridaceae	Polypodiales
European stinging nettle	Urtica dioica ssp. dioica L.	Urticaceae	Urticales
narrow-leaf cottonbush	Gomphocarpus fruticosus (L.) W. T. Aiton	Apocynaceae	Gentianales
rose campion	Lychnis coronaria (L.) Desr.	Caryophyllaceae	Caryophyllales
English violet	Viola odorata L.	Violaceae	Violales
alternateflower watermilfoil	Myriophyllum alterniflorum DC.	Haloragaceae	Haloragales
Andean watermilfoil	Myriophyllum quitense Kunth	Haloragaceae	Haloragales
mother-of-thyme	Acinos arvensis (Lam.) Dandy	Lamiaceae	Lamiales
bear's breech	Acanthus mollis L.	Acanthaceae	Scrophulariales
big trefoil	Lotus pedunculatus Cav.	Fabaceae (Leguminosae)	Fabales
changing forget-me-not	Myosotis discolor Pers.	Boraginaceae	Lamiales
cottonthistle	Onopordum spp. L.	Asteraceae	Asterales
eastern watermilfoil	Myriophyllum pinnatum (Walter) Britton, Sterns & Poggenb.	Haloragaceae	Haloragales
deadnettle	Lamium spp.	Lamiaceae	Lamiales
dovefoot geranium	Geranium molle L.	Geraniaceae	Geraniales
evergreen bugloss	Pentaglottis sempervirens (L.) Tausch ex L.H. Bailey	Boraginaceae	Lamiales
Farwell's watermilfoil	Myriophyllum farwellii Morong	Haloragaceae	Haloragales
fishgrass	Cabomba haynesii Wiersema	Cabombaceae	Nymphaeales
flat peavine	Lathyrus sylvestris L.	Fabaceae (Leguminosae)	Fabales
floating primrose-willow	Ludwigia peploides ssp. montevidensis (Spreng.) P.H. Raven	Onagraceae	Myrtales
forked fanwort	Cabomba furcata Schult. & Schult. f.	Cabombaceae	Nymphaeales
fumewort	Corydalis spp.	Fumariaceae	Papaverales
goldenthistle	Scolymus spp. L.	Asteraceae	Asterales
mossy stonecrop	Sedum acre L.	Crassulaceae	Rosales
grassleaf spurge	Euphorbia graminea Jacq.	Euphorbiaceae	Euphorbiales
Monnier waterhyssop	Bacopa monnieri (L.) Pennell	Scrophulariaceae	Scrophulariales
Java waterdropwort	Oenanthe javanica (Blume) DC.	Apiaceae	Apiales
joyweed	Alternanthera spp. Forssk.	Amaranthaceae	Caryophyllales
lax watermilfoil	Myriophyllum laxum Shuttlw. ex Chapm.	Haloragaceae	Haloragales
loosestrife	Lythrum spp. L.	Lythraceae	Myrtales
low watermilfoil	Myriophyllum humile (Raf.) Morong	Haloragaceae	Haloragales
meadow knapweed	Centaurea debeauxii Gren. & Godr. [excluded]	Asteraceae	Asterales
pale flax	Linum bienne Mill.	Linaceae	Linales
purple bushbean	Macroptilium atropurpureum (Moc. & Sessé ex DC.) Urb.	Fabaceae (Leguminosae)	Fabales
purple mistress	Moricandia arvensis (L.) DC.	Brassicaceae	Capparales
Russian water-milfoil	Myriophyllum ussuriense (Regel) Maxim.	Haloragaceae	Haloragales
northern watermilfoil	Myriophyllum sibiricum Kom.	Haloragaceae	Haloragales
slender false garlic	Nothoscordum gracile (Aiton) Stearn	Liliaceae	Liliales
slender watermilfoil	Myriophyllum tenellum Bigelow	Haloragaceae	Haloragales
spotted knapweed	Centaurea stoebe L.	Asteraceae	Asterales
sticky sage	Salvia glutinosa L.	Lamiaceae	Lamiales
subterranean clover	Trifolium subterraneum L.	Fabaceae (Leguminosae)	Fabales
summer snowflake	Leucojum aestivum L.	Liliaceae	Liliales
upright pepperweed	Lepidium strictum (S. Watson) Rattan	Brassicaceae	Capparales
West Indian spongeplant	Limnobium laevigatum (Humb. & Bonpl. ex Willd.) Heine	Hydrocharitaceae	Hydrocharitales
western watermilfoil	Myriophyllum hippuroides Nutt. ex Torr. & A. Gray	Haloragaceae	Haloragales
whorled watermilfoil	Myriophyllum verticillatum L.	Haloragaceae	Haloragales
wild basil	Clinopodium vulgare L.	Lamiaceae	Lamiales
wild bushbean	Macroptilium lathyroides (L.) Urb.	Fabaceae (Leguminosae)	Fabales

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