| African tuliptree |
Spathodea campanulata |
1 |
| alkali mallow |
Malvella leprosa |
1 |
| alligatorweed |
Alternanthera philoxeroides |
9 |
| American black nightshade |
Solanum americanum |
1 |
| American evergreen |
Syngonium podophyllum |
1 |
| American lotus |
Nelumbo lutea |
10 |
| Amur honeysuckle |
Lonicera maackii |
32 |
| Amur maple |
Acer ginnala |
14 |
| Amur peppervine |
Ampelopsis brevipedunculata |
1 |
| anchored waterhyacinth |
Eichhornia azurea |
1 |
| annual bluegrass |
Poa annua |
2 |
| annual false-brome |
Brachypodium distachyon |
1 |
| annual sowthistle |
Sonchus oleraceus |
1 |
| annual yellow sweetclover |
Melilotus indicus |
3 |
| apple-of-Peru |
Nicandra physalodes |
1 |
| arrowleaf sida |
Sida rhombifolia |
1 |
| Asiatic bellflower |
Wahlenbergia marginata |
4 |
| Asiatic dayflower |
Commelina communis |
6 |
| Asiatic hawksbeard |
Youngia japonica |
5 |
| aster |
Aster spp. |
1 |
| Athel tamarisk |
Tamarix aphylla |
8 |
| Australian fingergrass |
Chloris truncata |
1 |
| Australian teatree |
Leptospermum laevigatum |
2 |
| Australian-pine |
Casuarina equisetifolia |
1 |
| Austrian fieldcress |
Rorippa austriaca |
1 |
| autumn-olive |
Elaeagnus umbellata |
37 |
| babysbreath |
Gypsophila paniculata |
1 |
| banana poka |
Passiflora tarminiana |
1 |
| barberry |
Berberis spp. |
3 |
| barnyardgrass |
Echinochloa crus-galli |
1 |
| basketplant |
Callisia fragrans |
2 |
| beach naupaka |
Scaevola taccada |
1 |
| beach vitex |
Vitex rotundifolia |
14 |
| Bell's honeysuckle |
Lonicera x bella |
27 |
| Benghal dayflower |
Commelina benghalensis |
8 |
| bermudagrass |
Cynodon dactylon |
1 |
| biddy-biddy |
Acaena novae-zelandiae |
1 |
| big chickweed |
Cerastium fontanum ssp. vulgare |
7 |
| big periwinkle |
Vinca major |
11 |
| big quakinggrass |
Briza maxima |
5 |
| bigpod sesbania |
Sesbania herbacea |
1 |
| bigroot morningglory |
Ipomoea pandurata |
5 |
| bindweed |
Convolvulus spp. |
1 |
| bird vetch |
Vicia cracca |
2 |
| birdsfoot trefoil |
Lotus corniculatus |
10 |
| bishops goutweed |
Aegopodium podagraria |
51 |
| bitter sneezeweed |
Helenium amarum |
1 |
| bittersweet nightshade |
Solanum dulcamara |
27 |
| Black dog-strangling vine, black swallowwort |
Cynanchum louiseae |
34 |
| black henbane |
Hyoscyamus niger |
11 |
| black knapweed |
Centaurea nigra |
1 |
| black locust |
Robinia pseudoacacia |
61 |
| black medic |
Medicago lupulina |
3 |
| black nightshade |
Solanum nigrum |
1 |
| blackberry lily |
Belamcanda chinensis |
3 |
| bladder campion |
Silene latifolia ssp. alba |
10 |
| bladder campion |
Silene vulgaris |
1 |
| blessed milkthistle |
Silybum marianum |
5 |
| blessed thistle |
Cnicus benedictus |
1 |
| bloodscale sedge |
Cyperus sanguinolentus |
2 |
| blue and white daisybush |
Osteospermum ecklonis |
1 |
| blue vervain |
Verbena hastata |
2 |
| bluebuttons |
Knautia arvensis |
1 |
| blueweed |
Echium vulgare |
1 |
| boneset |
Eupatorium perfoliatum |
2 |
| border privet |
Ligustrum obtusifolium |
10 |
| bouncingbet |
Saponaria officinalis |
3 |
| brassbuttons |
Cotula coronopifolia |
1 |
| Brazilian peppertree |
Schinus terebinthifolius |
2 |
| Brazilian vervain |
Verbena incompta |
8 |
| Brazilian waterweed |
Egeria densa |
5 |
| brightblue speedwell |
Veronica serpyllifolia ssp. humifusa |
1 |
| bristly foxtail |
Setaria verticillata |
2 |
| bristly mallow |
Modiola caroliniana |
1 |
| British yellowhead |
Inula britannica |
3 |
| broadleaf plantain |
Plantago major |
1 |
| brown knapweed |
Centaurea jacea |
5 |
| browntop millet |
Urochloa ramosa |
1 |
| buckhorn plantain |
Plantago lanceolata |
5 |
| buffalobur |
Solanum rostratum |
4 |
| buffelgrass |
Pennisetum ciliare |
1 |
| Bukhara fleeceflower |
Polygonum baldschuanicum |
7 |
| bulbous bluegrass |
Poa bulbosa |
2 |
| bull cottonthistle |
Onopordum tauricum |
2 |
| bull mallow |
Malva nicaeensis |
1 |
| bull thistle |
Cirsium vulgare |
18 |
| bushkiller |
Cayratia japonica |
1 |
| buttercup oxalis |
Oxalis pes-caprae |
5 |
| butterfly milkweed |
Asclepias tuberosa |
3 |
| butterflybush |
Buddleja davidii |
19 |
| butterflybush |
Buddleja spp. |
1 |
| California blackberry |
Rubus ursinus |
2 |
| California nettle |
Urtica dioica ssp. gracilis |
1 |
| California privet |
Ligustrum ovalifolium |
4 |
| Callery pear (Bradford pear) |
Pyrus calleryana |
17 |
| camelthorn |
Alhagi maurorum |
1 |
| Canada bluegrass |
Poa compressa |
2 |
| Canada thistle |
Cirsium arvense |
68 |
| Canary Island tamarisk |
Tamarix canariensis |
6 |
| canyon dodder |
Cuscuta ceanothi |
1 |
| cape ivy |
Delairea odorata |
1 |
| capeweed |
Arctotheca calendula |
2 |
| cardoon |
Cynara cardunculus |
1 |
| Carolina geranium |
Geranium carolinianum |
1 |
| carpetweed |
Mollugo verticillata |
1 |
| cat's ear |
Hypochaeris spp. |
2 |
| catclaw mimosa |
Mimosa pellita |
1 |
| cathedral bells |
Kalanchoe pinnata |
1 |
| cattail millet |
Setaria glauca |
2 |
| cheatgrass |
Bromus tectorum |
6 |
| Cherokee rose |
Rosa laevigata |
1 |
| cherry plum |
Prunus cerasifera |
2 |
| chicory |
Cichorium intybus |
7 |
| chinaberry |
Melia azedarach |
11 |
| Chinese fountaingrass |
Pennisetum alopecuroides |
3 |
| Chinese holly |
Ilex cornuta |
1 |
| Chinese privet |
Ligustrum sinense |
9 |
| Chinese silvergrass |
Miscanthus sinensis |
5 |
| Chinese tallowtree |
Triadica sebifera |
5 |
| Chinese wisteria |
Wisteria sinensis |
22 |
| chocolate vine |
Akebia quinata |
18 |
| clammy goosefoot |
Dysphania pumilio |
1 |
| cockspur grass |
Echinochloa spp. |
1 |
| cogongrass |
Imperata cylindrica |
1 |
| coltsfoot |
Tussilago farfara |
18 |
| common burdock |
Arctium minus |
5 |
| common chickweed |
Stellaria pallida |
6 |
| common chokecherry |
Prunus virginiana |
2 |
| common cocklebur |
Xanthium strumarium |
1 |
| common crupina |
Crupina vulgaris |
2 |
| common elderberry |
Sambucus nigra ssp. canadensis |
2 |
| common frogbit |
Hydrocharis morsus-ranae |
1 |
| common groundsel |
Senecio vulgaris |
4 |
| common hempnettle |
Galeopsis tetrahit |
3 |
| common mallow |
Malva neglecta |
10 |
| common milkweed |
Asclepias syriaca |
2 |
| common mouse-ear chickweed |
Cerastium fontanum |
1 |
| common mullein |
Verbascum thapsus |
11 |
| common periwinkle |
Vinca minor |
4 |
| common pokeweed |
Phytolacca americana |
2 |
| common purslane |
Portulaca oleracea |
10 |
| common ragweed |
Ambrosia artemisiifolia |
1 |
| common reed |
Phragmites australis |
6 |
| common salsify |
Tragopogon porrifolius |
1 |
| common spiderwort |
Tradescantia ohiensis |
3 |
| common St. Johnswort |
Hypericum perforatum |
16 |
| common sunflower |
Helianthus annuus |
4 |
| common tansy |
Tanacetum vulgare |
9 |
| common tarweed |
Centromadia pungens ssp. pungens |
3 |
| common teasel |
Dipsacus fullonum |
5 |
| common valerian |
Valeriana officinalis |
35 |
| common yarrow |
Achillea millefolium |
6 |
| coral vine |
Antigonon leptopus |
1 |
| corn chamomile |
Anthemis arvensis |
1 |
| corn speedwell |
Veronica arvensis |
1 |
| cornflower |
Centaurea cyanus |
2 |
| Cornish mallow |
Lavatera cretica |
2 |
| coyote willow |
Salix exigua |
1 |
| crapemyrtle |
Lagerstroemia indica |
2 |
| creeping buttercup |
Ranunculus repens |
18 |
| creeping waterprimrose |
Ludwigia peploides |
1 |
| creeping woodsorrel |
Oxalis corniculata |
1 |
| crested latesummer mint |
Elsholtzia ciliata |
24 |
| crimson clover |
Trifolium incarnatum |
3 |
| croftonweed |
Ageratina adenophora |
3 |
| crowfootgrass |
Dactyloctenium aegyptium |
1 |
| crownvetch |
Securigera varia |
8 |
| crystalline iceplant |
Mesembryanthemum crystallinum |
3 |
| cultivated knotweed |
Persicaria wallichii |
1 |
| cup rosinweed |
Silphium perfoliatum |
13 |
| cushion spurge |
Euphorbia epithymoides |
1 |
| cutleaf evening-primrose |
Oenothera laciniata |
1 |
| cutleaf geranium |
Geranium dissectum |
1 |
| cutleaf goosefoot |
Chenopodium multifidum |
1 |
| cypress spurge |
Euphorbia cyparissias |
20 |
| cypressvine morningglory |
Ipomoea quamoclit |
1 |
| dallisgrass |
Paspalum dilatatum |
3 |
| Dalmatian toadflax |
Linaria dalmatica |
4 |
| dalmatian toadflax |
Linaria dalmatica ssp. dalmatica |
1 |
| damesrocket |
Hesperis matronalis |
26 |
| dandelion |
Taraxacum officinale |
5 |
| dandelion |
Taraxacum spp. |
1 |
| deeprooted sedge |
Cyperus entrerianus |
7 |
| Deptford pink |
Dianthus armeria |
1 |
| devil's-claw |
Proboscidea louisianica |
3 |
| devils beggarticks |
Bidens frondosa |
1 |
| diffuse knapweed |
Centaurea diffusa |
9 |
| dodder |
Cuscuta spp. |
1 |
| dog rose |
Rosa canina |
1 |
| dog-strangling vine, European swallowwort |
Cynanchum rossicum |
31 |
| dotted bridalveil |
Gibasis pellucida |
3 |
| Douglas iris |
Iris douglasiana |
1 |
| drug fumitory |
Fumaria officinalis |
6 |
| duck-lettuce |
Ottelia alismoides |
2 |
| dwarf honeysuckle |
Lonicera xylosteum |
51 |
| Dyer's woad |
Isatis tinctoria |
2 |
| earleaf nightshade |
Solanum mauritianum |
1 |
| early goldenrod |
Solidago juncea |
1 |
| early watergrass |
Echinochloa oryzoides |
1 |
| Ebbinge's Silverberry |
Elaeagnus x ebbingei (E. macrophylla x E. pungens) |
1 |
| elephant grass |
Pennisetum purpureum |
2 |
| English daisy |
Bellis perennis |
4 |
| English hawthorn |
Crataegus monogyna |
1 |
| English ivy |
Hedera helix |
6 |
| European alder |
Alnus glutinosa |
6 |
| European barberry |
Berberis vulgaris |
55 |
| European bird cherry |
Prunus padus |
1 |
| European buckthorn |
Rhamnus cathartica |
27 |
| European privet |
Ligustrum vulgare |
4 |
| European stinging nettle |
Urtica dioica ssp. dioica |
3 |
| evening-primrose |
Oenothera spp. |
1 |
| everlasting peavine |
Lathyrus latifolius |
1 |
| exotic bush honeysuckles |
Lonicera spp. |
2 |
| fall panicum |
Panicum dichotomiflorum |
1 |
| false chamomile |
Tripleurospermum perforatum |
3 |
| fanwort |
Cabomba caroliniana |
8 |
| fennel |
Foeniculum vulgare |
3 |
| fernleaf yarrow |
Achillea filipendulina |
2 |
| field bindweed |
Convolvulus arvensis |
26 |
| field brome |
Bromus arvensis |
1 |
| field dodder |
Cuscuta pentagona |
1 |
| field horsetail |
Equisetum arvense |
2 |
| field madder |
Sherardia arvensis |
1 |
| field pennycress |
Thlaspi arvense |
1 |
| field violet |
Viola arvensis |
1 |
| flatsedge |
Cyperus spp. |
1 |
| flixweed |
Descurainia sophia |
2 |
| Florida wild lettuce |
Lactuca floridana |
1 |
| flowering rush |
Butomus umbellatus |
17 |
| foxglove |
Digitalis purpurea |
4 |
| foxtail barley |
Hordeum jubatum |
2 |
| foxtail brome |
Bromus madritensis |
1 |
| freesia |
Freesia spp. |
2 |
| Fremont's deathcamas |
Zigadenus fremontii |
1 |
| French broom |
Genista monspessulana |
3 |
| Fuller's teasel |
Dipsacus sativus |
1 |
| fumitory |
Fumaria spp. |
1 |
| garden loosestrife |
Lysimachia vulgaris |
26 |
| garlic mustard |
Alliaria petiolata |
32 |
| giant foxtail |
Setaria faberi |
7 |
| giant hogweed |
Heracleum mantegazzianum |
12 |
| giant ironweed |
Vernonia gigantea gigantea |
3 |
| giant reed |
Arundo donax |
12 |
| gingermint |
Mentha x gracilis |
4 |
| glandular Cape marigold |
Dimorphotheca sinuata |
1 |
| glossy buckthorn |
Frangula alnus |
2 |
| glossy privet |
Ligustrum lucidum |
3 |
| goatsbeard |
Tragopogon spp. |
2 |
| goatsrue |
Galega officinalis |
2 |
| Gold Coast jasmine |
Jasminum dichotomum |
2 |
| goldenrod |
Solidago spp. |
1 |
| Goodding's willow |
Salix gooddingii |
1 |
| goosegrass |
Eleusine indica |
1 |
| gorse |
Ulex europaeus |
14 |
| great burdock |
Arctium lappa |
2 |
| great globethistle |
Echinops sphaerocephalus |
2 |
| great yellowcress |
Rorippa amphibia |
53 |
| greater ammi |
Ammi majus |
1 |
| greater celandine |
Chelidonium majus |
12 |
| green foxtail |
Setaria viridis |
3 |
| green kyllinga |
Kyllinga brevifolia |
3 |
| ground ivy |
Glechoma hederacea |
33 |
| groundcherries |
Physalis spp. |
1 |
| hairy beggarticks |
Bidens pilosa |
2 |
| hairy bittercress |
Cardamine hirsuta |
28 |
| hairy buttercup |
Ranunculus sardous |
1 |
| hairy cat's ear |
Hypochaeris radicata |
1 |
| hairy galinsoga |
Galinsoga ciliata |
5 |
| hairy vetch |
Vicia villosa |
2 |
| hairy white oldfield aster |
Symphyotrichum pilosum var. pilosum |
3 |
| hairy willowherb |
Epilobium hirsutum |
3 |
| hardgrass |
Sclerochloa dura |
1 |
| hawkweeds |
Hieracium spp. |
6 |
| healall |
Prunella vulgaris |
2 |
| heather |
Calluna vulgaris |
2 |
| hedge bindweed |
Calystegia sepium |
10 |
| hedge mustard |
Sisymbrium officinale |
1 |
| hedgehog dogtailgrass |
Cynosurus echinatus |
1 |
| hedgeparsley |
Torilis arvensis |
1 |
| hemp dogbane |
Apocynum cannabinum |
1 |
| hemp sesbania |
Sesbania exaltata |
1 |
| henbit |
Lamium amplexicaule |
5 |
| high mallow |
Malva sylvestris |
1 |
| highbush blackberry |
Rubus argutus |
1 |
| Hill mustard |
Bunias orientalis |
1 |
| Himalaya blackberry |
Rubus armeniacus |
2 |
| Himalayan honeysuckle |
Leycesteria formosa |
1 |
| hoary alyssum |
Berteroa incana |
1 |
| hoary cress |
Lepidium draba |
10 |
| horehound |
Marrubium peregrinum |
1 |
| horehound |
Marrubium spp. |
1 |
| horse purslane |
Trianthema portulacastrum |
1 |
| horsenettle |
Solanum carolinense |
3 |
| horseweed |
Conyza canadensis |
3 |
| hottentot fig |
Carpobrotus edulis |
3 |
| houndstongue |
Cynoglossum officinale |
2 |
| Hybrid barberry |
Berberis × ottawensis |
27 |
| Indian heliotrope |
Heliotropium indicum |
1 |
| Indian tobacco |
Nicotiana quadrivalvis |
1 |
| Indiantobacco |
Lobelia inflata |
1 |
| indigobush |
Amorpha fruticosa |
11 |
| ivyleaf morningglory |
Ipomoea hederacea |
4 |
| Japanese angelica tree |
Aralia elata |
2 |
| Japanese barberry |
Berberis thunbergii |
41 |
| Japanese bindweed |
Calystegia hederacea |
6 |
| Japanese hedgeparsley |
Torilis japonica |
2 |
| Japanese honeysuckle |
Lonicera japonica |
37 |
| Japanese hop |
Humulus japonicus |
1 |
| Japanese knotweed |
Fallopia japonica |
38 |
| Japanese privet |
Ligustrum japonicum |
2 |
| Japanese sedge |
Carex kobomugi |
1 |
| Japanese spiraea |
Spiraea japonica |
15 |
| Japanese stiltgrass |
Microstegium vimineum |
10 |
| Japanese tree lilac |
Syringa reticulata |
8 |
| jazmin de trapo |
Jasminum fluminense |
1 |
| Jerusalem artichoke |
Helianthus tuberosus |
4 |
| jetbead |
Rhodotypos scandens |
13 |
| jewelweed |
Impatiens capensis |
1 |
| jimsonweed |
Datura stramonium |
18 |
| joe pye weed |
Eupatoriadelphus spp. |
1 |
| johnsongrass |
Sorghum halepense |
4 |
| jointed goatgrass |
Aegilops cylindrica |
1 |
| jointed prickly pear |
Opuntia aurantiaca |
1 |
| Kentucky bluegrass |
Poa pratensis |
1 |
| kiawe |
Prosopis pallida |
2 |
| knapweeds |
Centaurea spp. |
5 |
| knotweed |
Polygonum spp. |
2 |
| kudzu |
Pueraria montana var. lobata |
50 |
| lambsquarters |
Chenopodium album |
2 |
| large crabgrass |
Digitaria sanguinalis |
2 |
| large hop clover |
Trifolium campestre |
1 |
| largeleaf lantana |
Lantana camara |
27 |
| leafy spurge |
Euphorbia esula |
37 |
| lesser celandine, fig buttercup |
Ficaria verna |
28 |
| lilyturf |
Liriope spp. |
2 |
| little quakinggrass |
Briza minor |
1 |
| livid amaranth |
Amaranthus blitum |
4 |
| lobelia/cardinalflower |
Lobelia spp. |
2 |
| longflowered veldtgrass |
Ehrharta longiflora |
1 |
| longspine sandbur |
Cenchrus longispinus |
1 |
| Malta starthistle |
Centaurea melitensis |
3 |
| mat chaff-flower |
Alternanthera caracasana |
1 |
| mat lippia |
Phyla nodiflora |
4 |
| maypop passionflower |
Passiflora incarnata |
1 |
| meadow campion |
Silene flos-cuculi |
16 |
| meadow hawkweed |
Hieracium caespitosum |
3 |
| meadow salsify |
Tragopogon lamottei |
2 |
| Mediterranean sage |
Salvia aethiopis |
1 |
| medusahead |
Taeniatherum caput-medusae |
2 |
| melaleuca |
Melaleuca quinquenervia |
2 |
| Mexican fireweed |
Kochia scoparia |
11 |
| Mexican whorled milkweed |
Asclepias fascicularis |
1 |
| mexicantea |
Dysphania ambrosioides |
1 |
| mile-a-minute weed |
Persicaria perfoliata |
1 |
| milkflower cotoneaster |
Cotoneaster coriaceus |
1 |
| mimosa |
Albizia julibrissin |
8 |
| miner's lettuce |
Claytonia perfoliata |
1 |
| moist sowthistle |
Sonchus arvensis ssp. uliginosus |
1 |
| moleplant |
Euphorbia lathyris |
1 |
| moneywort |
Lysimachia nummularia |
9 |
| monkeygrass |
Liriope muscari |
1 |
| Moroccan toadflax |
Linaria maroccana |
2 |
| Morrow's honeysuckle |
Lonicera morrowii |
46 |
| moth mullein |
Verbascum blattaria |
4 |
| motherwort |
Leonurus cardiaca |
1 |
| mugwort |
Artemisia vulgaris |
3 |
| mulberryweed |
Fatoua villosa |
2 |
| multiflora rose |
Rosa multiflora |
48 |
| musk mallow |
Malva moschata |
3 |
| musk okra |
Abelmoschus moschatus |
2 |
| musk thistle |
Carduus nutans |
39 |
| mustard |
Brassica spp. |
2 |
| myrtle spurge |
Euphorbia myrsinites |
1 |
| narrow-leaved iceplant |
Conicosia pugioniformis |
1 |
| narrowleaf bittercress |
Cardamine impatiens |
9 |
| narrowleaf hawksbeard |
Crepis tectorum |
3 |
| nasturtium |
Tropaeolum majus |
1 |
| ngaio tree |
Myoporum laetum |
1 |
| nightshade |
Solanum spp. |
1 |
| North African knapweed |
Centaurea diluta |
1 |
| northern dewberry |
Rubus flagellaris |
1 |
| Norway maple |
Acer platanoides |
20 |
| oakforest woodrush |
Luzula luzuloides |
6 |
| octopus tree |
Schefflera actinophylla |
1 |
| oneflowered broomrape |
Orobanche uniflora |
4 |
| onerow yellowcress |
Nasturtium microphyllum |
17 |
| onionweed |
Asphodelus fistulosus |
1 |
| orange cotoneaster |
Cotoneaster franchetii |
1 |
| orange hawkweed |
Hieracium aurantiacum |
8 |
| orangeberry nightshade |
Solanum lanceolatum |
1 |
| orbicular whitetop |
Lepidium chalepense |
1 |
| orchardgrass |
Dactylis glomerata |
2 |
| oriental bittersweet |
Celastrus orbiculatus |
19 |
| Oriental lady's thumb |
Persicaria longiseta |
1 |
| oriental virginsbower |
Clematis orientalis |
2 |
| ornamental jewelweed |
Impatiens glandulifera |
101 |
| osage-orange |
Maclura pomifera |
1 |
| oval-leaf knotweed |
Polygonum arenastrum |
1 |
| oxeye daisy |
Leucanthemum vulgare |
11 |
| Pacific bentgrass |
Agrostis avenacea |
1 |
| Palmer amaranth |
Amaranthus palmeri |
4 |
| palmleaf morningglory |
Ipomoea wrightii |
2 |
| panic veldtgrass |
Ehrharta erecta |
1 |
| pansy |
Viola tricolor |
1 |
| papaya |
Carica papaya |
1 |
| paper-mulberry |
Broussonetia papyrifera |
2 |
| passionflower |
Passiflora spp. |
5 |
| Pennsylvania smartweed |
Polygonum pensylvanicum |
1 |
| peppervine |
Ampelopsis spp. |
1 |
| perennial pepperweed |
Lepidium latifolium |
22 |
| perennial sowthistle |
Sonchus arvensis |
7 |
| perilla mint |
Perilla frutescens |
3 |
| Persian clover |
Trifolium resupinatum |
2 |
| Persian speedwell |
Veronica persica |
1 |
| pheasant's eye |
Adonis parviceps |
1 |
| pineapple-weed |
Matricaria discoidea |
3 |
| pink purslane |
Portulaca pilosa |
1 |
| pitted morningglory |
Ipomoea lacunosa |
1 |
| poison ryegrass |
Lolium temulentum |
1 |
| poison-hemlock |
Conium maculatum |
6 |
| portia tree |
Thespesia populnea |
1 |
| potato |
Solanum tuberosum |
2 |
| poverty brome |
Bromus sterilis |
1 |
| Powell amaranth |
Amaranthus powellii |
2 |
| prickly lettuce |
Lactuca serriola |
4 |
| prickly sida |
Sida spinosa |
1 |
| pricklypear/cholla |
Opuntia spp. |
1 |
| princesstree |
Paulownia tomentosa |
39 |
| privet |
Ligustrum spp. |
8 |
| prostrate globe-amaranth |
Gomphrena serrata |
3 |
| prostrate knotweed |
Polygonum aviculare |
1 |
| punagrass |
Achnatherum brachychaetum |
1 |
| puncturevine |
Tribulus terrestris |
10 |
| purple deadnettle |
Lamium purpureum |
2 |
| purple loosestrife |
Lythrum salicaria |
55 |
| purple moonflower |
Ipomoea turbinata |
2 |
| purple nutsedge |
Cyperus rotundus |
3 |
| purple starthistle |
Centaurea calcitrapa |
4 |
| purple toadflax |
Linaria purpurea |
1 |
| purple witchweed |
Striga hermonthica |
4 |
| Queen Anne's lace, wild carrot |
Daucus carota |
14 |
| rabbitfoot polypogon |
Polypogon monspeliensis |
4 |
| rattlesnake brome |
Bromus briziformis |
1 |
| ravennagrass |
Ripidium ravennae |
1 |
| red brome |
Bromus rubens |
1 |
| red clover |
Trifolium pratense |
6 |
| red morningglory |
Ipomoea coccinea |
1 |
| red sesbania |
Sesbania punicea |
4 |
| red soda apple |
Solanum capsicoides |
1 |
| red sorrel |
Rumex acetosella |
5 |
| red willow |
Salix laevigata |
3 |
| redmaids |
Calandrinia ciliata |
1 |
| redroot flatsedge |
Cyperus erythrorhizos |
1 |
| redroot pigweed |
Amaranthus retroflexus |
1 |
| redstem filaree |
Erodium cicutarium |
3 |
| redstem stork's bill |
Erodium cicutarium ssp. cicutarium |
1 |
| reed canarygrass |
Phalaris arundinacea |
19 |
| reed mannagrass |
Glyceria maxima |
1 |
| rescuegrass |
Bromus catharticus |
1 |
| rhodesgrass |
Chloris gayana |
1 |
| ripgut brome |
Bromus diandrus |
1 |
| rosering gaillardia |
Gaillardia pulchella |
1 |
| rough barnyardgrass |
Echinochloa muricata |
1 |
| rough cinquefoil |
Potentilla norvegica |
4 |
| rough peavine |
Lathyrus hirsutus |
1 |
| roughstalk bluegrass |
Poa trivialis |
1 |
| rush skeletonweed |
Chondrilla juncea |
2 |
| Russian knapweed |
Rhaponticum repens |
3 |
| Russian thistle |
Salsola kali |
3 |
| Russian-olive |
Elaeagnus angustifolia |
9 |
| Russian-thistle |
Salsola tragus |
3 |
| sacred bamboo |
Nandina domestica |
1 |
| Sakhalin knotweed |
Fallopia sachalinensis |
7 |
| saltcedar |
Tamarix ramosissima |
22 |
| Scotch broom |
Cytisus scoparius |
27 |
| Scotch thistle |
Onopordum acanthium |
8 |
| sea fig |
Carpobrotus chilensis |
1 |
| sea hibiscus |
Hibiscus tiliaceus |
1 |
| seashore vervain |
Verbena montevidensis |
1 |
| Seaside rose |
Rosa rugosa |
30 |
| seepwillow |
Baccharis salicifolia |
1 |
| sensitive plant |
Mimosa spp. |
1 |
| sericea lespedeza |
Lespedeza cuneata |
13 |
| shallow-wort |
Cynanchum spp. |
1 |
| sharppoint fluvellin |
Kickxia elatine |
1 |
| shepherd's-purse |
Capsella bursa-pastoris |
6 |
| shoebutton ardisia |
Ardisia elliptica |
5 |
| showy dewflower |
Drosanthemum floribundum |
1 |
| showy evening-primrose |
Oenothera speciosa |
1 |
| showy milkweed |
Asclepias speciosa |
1 |
| showy rattlebox |
Crotalaria spectabilis |
3 |
| shrubby lespedeza |
Lespedeza bicolor |
1 |
| shrubby St. Johnswort |
Hypericum prolificum |
1 |
| silver hairgrass |
Aira caryophyllea |
2 |
| silverleaf cotoneaster |
Cotoneaster pannosus |
1 |
| silverleaf nightshade |
Solanum elaeagnifolium |
1 |
| skunk-vine |
Paederia foetida |
4 |
| slender cinquefoil |
Potentilla gracilis |
1 |
| slender false garlic |
Nothoscordum gracile |
1 |
| slender rush |
Juncus tenuis |
1 |
| slender snakecotton |
Froelichia gracilis |
4 |
| slenderflower thistle |
Carduus tenuiflorus |
1 |
| slenderleaf iceplant |
Mesembryanthemum nodiflorum |
1 |
| small broomrape |
Orobanche minor |
1 |
| small carpetgrass, joint-head grass |
Arthraxon hispidus |
2 |
| small flower touch-me-not |
Impatiens parviflora |
2 |
| smallflower morningglory |
Jacquemontia tamnifolia |
8 |
| smallflower tamarisk |
Tamarix parviflora |
3 |
| smilograss |
Piptatherum miliaceum |
1 |
| smokebush |
Buddleja madagascariensis |
7 |
| smooth bedstraw |
Galium mollugo |
3 |
| smooth brome |
Bromus inermis |
3 |
| smooth crabgrass |
Digitaria ischaemum |
3 |
| smooth groundcherry |
Physalis longifolia var. subglabrata |
4 |
| smooth hawksbeard |
Crepis capillaris |
1 |
| sorghum |
Sorghum bicolor |
2 |
| southern brassbuttons |
Cotula australis |
1 |
| southern sandbur |
Cenchrus echinatus |
1 |
| speedwell |
Veronica spp. |
3 |
| spiny plumeless thistle |
Carduus acanthoides |
4 |
| spiny sowthistle |
Sonchus asper |
5 |
| spotted knapweed |
Centaurea stoebe |
35 |
| spotted knapweed |
Centaurea stoebe ssp. micranthos |
27 |
| spotted water hemlock |
Cicuta maculata var. angustifolia |
1 |
| spurred anoda |
Anoda cristata |
1 |
| squarrose knapweed |
Centaurea virgata |
6 |
| squirreltail fescue |
Vulpia bromoides |
1 |
| St. Augustinegrass |
Stenotaphrum secundatum |
1 |
| St. John's bread |
Ceratonia siliqua |
1 |
| staghorn sumac |
Rhus typhina |
2 |
| star-of-Bethlehem |
Ornithogalum umbellatum |
36 |
| sterile oat |
Avena sterilis |
1 |
| stinkgrass |
Eragrostis cilianensis |
1 |
| stinking chamomile |
Anthemis cotula |
3 |
| sulfur cinquefoil |
Potentilla recta |
9 |
| summer pheasant's eye |
Adonis aestivalis |
2 |
| swainsonpea |
Sphaerophysa salsula |
1 |
| swamp milkweed |
Asclepias incarnata |
2 |
| swamp morningglory |
Ipomoea aquatica |
3 |
| swamp pricklegrass |
Crypsis schoenoides |
1 |
| sweet autumn virginsbower |
Clematis terniflora |
25 |
| Sycamore maple |
Acer pseudoplatanus |
7 |
| Syrian beancaper |
Zygophyllum fabago |
1 |
| tall buttercup |
Ranunculus acris |
3 |
| tall fescue |
Festuca arundinacea |
1 |
| tall flatsedge |
Cyperus eragrostis |
1 |
| tall ironweed |
Vernonia gigantea |
2 |
| tall morningglory |
Ipomoea purpurea |
4 |
| tall vervain |
Verbena bonariensis |
2 |
| tall waterhemp |
Amaranthus tuberculatus |
7 |
| tamarisk |
Tamarix spp. |
21 |
| tansy ragwort |
Senecio jacobaea |
28 |
| Tatarian honeysuckle |
Lonicera tatarica |
43 |
| tawny daylily |
Hemerocallis fulva |
7 |
| teasel |
Dipsacus spp. |
1 |
| thistle |
Cirsium spp. |
5 |
| thorny olive |
Elaeagnus pungens |
1 |
| three-cornered leek |
Allium triquetrum |
1 |
| threebract loosestrife |
Lythrum tribracteatum |
1 |
| threelobe morningglory |
Ipomoea triloba |
3 |
| threespike goosegrass |
Eleusine tristachya |
1 |
| Thunberg's geranium |
Geranium thunbergii |
15 |
| thymeleaf speedwell |
Veronica serpyllifolia |
1 |
| tiger lily |
Lilium lancifolium |
2 |
| timothy |
Phleum pratense |
1 |
| tomatillo groundcherry |
Physalis philadelphica |
1 |
| toothed spurge |
Euphorbia dentata |
1 |
| toothpick ammi |
Ammi visnaga |
1 |
| torpedograss |
Panicum repens |
1 |
| tree marigold |
Tithonia diversifolia |
1 |
| tree tobacco |
Nicotiana glauca |
5 |
| tree-of-heaven |
Ailanthus altissima |
48 |
| trifoliate orange |
Poncirus trifoliata |
3 |
| tropic croton |
Croton glandulosus var. septentrionalis |
1 |
| tropical soda apple |
Solanum viarum |
2 |
| true forget-me-not |
Myosotis scorpioides |
12 |
| trumpetflower |
Tecoma stans |
1 |
| tuberous vervain |
Verbena rigida |
7 |
| tungoil tree |
Vernicia fordii |
4 |
| turkeyberry |
Solanum torvum |
3 |
| turnipweed |
Rapistrum rugosum |
1 |
| twoleaf watermilfoil |
Myriophyllum heterophyllum |
3 |
| vaseygrass |
Paspalum urvillei |
1 |
| velvetleaf |
Abutilon theophrasti |
11 |
| Venice mallow |
Hibiscus trionum |
5 |
| venus-comb |
Scandix pecten-veneris |
1 |
| violet |
Viola spp. |
4 |
| Virginia-creeper |
Parthenocissus quinquefolia |
1 |
| wall lettuce |
Mycelis muralis |
19 |
| wallflower mustard |
Erysimum cheiranthoides |
1 |
| water snowflake |
Nymphoides indica |
2 |
| water speedwell |
Veronica anagallis-aquatica |
1 |
| water-chestnut |
Trapa natans |
3 |
| waterhyacinth |
Eichhornia crassipes |
30 |
| waterlettuce |
Pistia stratiotes |
8 |
| waterpoppy |
Hydrocleys nymphoides |
3 |
| wavyleaf basketgrass |
Oplismenus hirtellus ssp. undulatifolius |
1 |
| wavyleaf thistle |
Cirsium undulatum |
1 |
| West Indian nightshade |
Solanum ptycanthum |
2 |
| western salsify |
Tragopogon dubius |
8 |
| white bladderflower |
Araujia sericifera |
1 |
| white clover |
Trifolium repens |
5 |
| white heath aster |
Symphyotrichum ericoides var. ericoides |
4 |
| white horehound |
Marrubium vulgare |
1 |
| white mustard |
Sinapis alba |
2 |
| white poplar |
Populus alba |
5 |
| white ramping fumitory |
Fumaria capreolata |
1 |
| white snakeroot |
Ageratina altissima |
1 |
| whiteedge flatsedge |
Cyperus flavicomus |
1 |
| whitegrass |
Leersia virginica |
1 |
| whitestem filaree |
Erodium moschatum |
1 |
| wild buckwheat |
Fallopia convolvulus |
1 |
| wild carrot |
Daucus carota ssp. carota |
9 |
| wild chervil |
Anthriscus sylvestris |
25 |
| wild four-o'clock |
Mirabilis nyctaginea |
2 |
| wild garlic |
Allium vineale |
3 |
| wild mustard |
Sinapis arvensis |
20 |
| wild mustard |
Sinapis arvensis ssp. arvensis |
2 |
| wild onion |
Allium canadense |
1 |
| wild parsnip |
Pastinaca sativa |
9 |
| windowbox woodsorrel |
Oxalis rubra |
1 |
| wine raspberry |
Rubus phoenicolasius |
25 |
| winged burning bush |
Euonymus alatus |
3 |
| winged waterprimrose |
Ludwigia decurrens |
2 |
| wirestem muhly |
Muhlenbergia frondosa |
1 |
| witchweed |
Striga spp. |
2 |
| yellow bluestem |
Bothriochloa ischaemum var. songarica |
6 |
| yellow bush lupine |
Lupinus arboreus |
1 |
| yellow chamomile |
Anthemis tinctoria |
1 |
| yellow floatingheart |
Nymphoides peltata |
28 |
| yellow hornpoppy |
Glaucium flavum |
2 |
| yellow nutsedge |
Cyperus esculentus |
20 |
| yellow starthistle |
Centaurea solstitialis |
7 |
| yellow sweetclover |
Melilotus officinalis |
10 |
| yellow toadflax |
Linaria vulgaris |
3 |
| yellow unicorn-plant |
Ibicella lutea |
1 |
| yellow woodsorrel |
Oxalis stricta |
2 |
| yellowflag iris |
Iris pseudacorus |
16 |
| yellowspine thistle |
Cirsium ochrocentrum |
1 |
