| absinth wormwood |
Artemisia absinthium |
1 |
| African rue |
Peganum harmala |
3 |
| air-potato |
Dioscorea bulbifera |
9 |
| alkali mallow |
Malvella leprosa |
1 |
| alligatorweed |
Alternanthera philoxeroides |
26 |
| alpine knapweed |
Centaurea nigrescens |
1 |
| alsike clover |
Trifolium hybridum |
7 |
| American bugleweed |
Lycopus americanus |
1 |
| annual bursage |
Ambrosia acanthicarpa |
1 |
| annual sowthistle |
Sonchus oleraceus |
8 |
| annual wormwood |
Artemisia annua |
1 |
| annual yellow sweetclover |
Melilotus indicus |
3 |
| apple-of-Peru |
Nicandra physalodes |
10 |
| arrowleaf sida |
Sida rhombifolia |
1 |
| Asiatic bellflower |
Wahlenbergia marginata |
1 |
| Asiatic dayflower |
Commelina communis |
14 |
| Asiatic pennywort |
Centella asiatica |
3 |
| asparagus |
Asparagus officinalis |
6 |
| Aster |
|
1 |
| Australian saltbush |
Atriplex semibaccata |
2 |
| Austrian fieldcress |
Rorippa austriaca |
3 |
| babysbreath |
Gypsophila paniculata |
1 |
| basketplant |
Callisia fragrans |
1 |
| Bay Biscayne creeping-oxeye |
Sphagneticola trilobata |
1 |
| beaked dodder |
Cuscuta rostrata |
1 |
| bellardia |
Bellardia trixago |
2 |
| Benghal dayflower |
Commelina benghalensis |
5 |
| biennial wormwood |
Artemisia biennis |
1 |
| big chickweed |
Cerastium fontanum ssp. vulgare |
14 |
| bigroot morningglory |
Ipomoea pandurata |
3 |
| bird vetch |
Vicia cracca |
5 |
| birdsfoot trefoil |
Lotus corniculatus |
14 |
| birdsrape mustard |
Brassica rapa |
8 |
| bishops goutweed |
Aegopodium podagraria |
27 |
| bitter sneezeweed |
Helenium amarum |
3 |
| bittercress |
Cardamine spp. |
1 |
| bittersweet nightshade |
Solanum dulcamara |
22 |
| Black dog-strangling vine, black swallowwort |
Cynanchum louiseae |
25 |
| black henbane |
Hyoscyamus niger |
24 |
| black knapweed |
Centaurea nigra |
3 |
| black medic |
Medicago lupulina |
8 |
| black mustard |
Brassica nigra |
1 |
| black nightshade |
Solanum nigrum |
6 |
| blackberry lily |
Belamcanda chinensis |
3 |
| blackseed plantain |
Plantago rugelii |
5 |
| bladder campion |
Silene latifolia ssp. alba |
8 |
| bladderwort |
Utricularia spp. |
1 |
| blessed milkthistle |
Silybum marianum |
10 |
| blue vervain |
Verbena hastata |
2 |
| boneset |
Eupatorium perfoliatum |
5 |
| bouncingbet |
Saponaria officinalis |
14 |
| bracted plantain |
Plantago aristata |
1 |
| branched broomrape |
Orobanche ramosa |
20 |
| brassbuttons |
Cotula coronopifolia |
2 |
| Brazilian vervain |
Verbena incompta |
5 |
| brightblue speedwell |
Veronica serpyllifolia ssp. humifusa |
1 |
| bristly hawksbeard |
Crepis setosa |
1 |
| bristly mallow |
Modiola caroliniana |
2 |
| British yellowhead |
Inula britannica |
4 |
| brittleleaf naiad |
Najas minor |
15 |
| Britton's wild petunia |
Ruellia simplex |
1 |
| broadleaf dock |
Rumex obtusifolius |
5 |
| broadleaf filaree |
Erodium botrys |
2 |
| broadleaf plantain |
Plantago major |
19 |
| brown knapweed |
Centaurea jacea |
8 |
| buckhorn plantain |
Plantago coronopus |
1 |
| buckhorn plantain |
Plantago lanceolata |
15 |
| buffalobur |
Solanum rostratum |
11 |
| bull cottonthistle |
Onopordum tauricum |
8 |
| bull mallow |
Malva nicaeensis |
1 |
| bull thistle |
Cirsium vulgare |
31 |
| bur beggarticks |
Bidens tripartita |
1 |
| bur chervil |
Anthriscus caucalis |
2 |
| burcucumber |
Sicyos angulatus |
6 |
| burning nettle |
Urtica urens |
1 |
| buttercup oxalis |
Oxalis pes-caprae |
2 |
| butterfly milkweed |
Asclepias tuberosa |
6 |
| Caesarweed |
Urena lobata |
2 |
| California false-hellebore |
Veratrum californicum |
1 |
| Canada goldenrod |
Solidago canadensis |
4 |
| Canada thistle |
Cirsium arvense |
49 |
| cape ivy |
Delairea odorata |
3 |
| capeweed |
Arctotheca calendula |
3 |
| cardoon |
Cynara cardunculus |
3 |
| carpetweed |
Mollugo verticillata |
1 |
| catchweed bedstraw |
Galium aparine |
11 |
| catnip |
Nepeta cataria |
7 |
| chamber bitter |
Phyllanthus urinaria |
7 |
| chicory |
Cichorium intybus |
13 |
| Chinese thorn-apple |
Datura quercifolia |
1 |
| Chinese yam |
Dioscorea polystachya |
10 |
| clammy goosefoot |
Dysphania pumilio |
1 |
| clammy groundcherry |
Physalis heterophylla |
1 |
| clasping pepperweed |
Lepidium perfoliatum |
2 |
| clover |
Trifolium spp. |
1 |
| coat buttons |
Tridax procumbens |
1 |
| coco yam, wild taro |
Colocasia esculenta |
26 |
| coltsfoot |
Tussilago farfara |
48 |
| common bugloss |
Anchusa officinalis |
2 |
| common burdock |
Arctium minus |
12 |
| common cattail |
Typha latifolia |
9 |
| common chickweed |
Stellaria media |
3 |
| common chickweed |
Stellaria pallida |
7 |
| common cocklebur |
Xanthium strumarium |
10 |
| common comfrey |
Symphytum officinale |
8 |
| common cowparsnip |
Heracleum maximum |
1 |
| common crupina |
Crupina vulgaris |
9 |
| common evening-primrose |
Oenothera biennis |
3 |
| common frogbit |
Hydrocharis morsus-ranae |
1 |
| common groundsel |
Senecio vulgaris |
7 |
| common hempnettle |
Galeopsis tetrahit |
6 |
| common lespedeza |
Kummerowia striata |
4 |
| common mallow |
Malva neglecta |
18 |
| common milkweed |
Asclepias syriaca |
14 |
| common mouse-ear chickweed |
Cerastium fontanum |
2 |
| common mullein |
Verbascum thapsus |
50 |
| common pokeweed |
Phytolacca americana |
13 |
| common purslane |
Portulaca oleracea |
22 |
| common ragweed |
Ambrosia artemisiifolia |
8 |
| common St. Johnswort |
Hypericum perforatum |
21 |
| common sunflower |
Helianthus annuus |
5 |
| common tansy |
Tanacetum vulgare |
28 |
| common tarweed |
Centromadia pungens ssp. pungens |
6 |
| common teasel |
Dipsacus fullonum |
14 |
| common valerian |
Valeriana officinalis |
50 |
| common vetch |
Vicia sativa |
1 |
| common waterhemp |
Amaranthus rudis |
1 |
| common yarrow |
Achillea millefolium |
22 |
| coppery mesemb |
Malephora crocea |
1 |
| corn speedwell |
Veronica arvensis |
3 |
| corn spurry |
Spergula arvensis |
1 |
| cornflower |
Centaurea cyanus |
2 |
| Cornish mallow |
Lavatera cretica |
1 |
| Coulter's horseweed |
Laennecia coulteri |
2 |
| creeping buttercup |
Ranunculus repens |
33 |
| creeping woodsorrel |
Oxalis corniculata |
1 |
| crested latesummer mint |
Elsholtzia ciliata |
24 |
| crimson clover |
Trifolium incarnatum |
1 |
| crimson woodsorrel |
Oxalis incarnata |
1 |
| croftonweed |
Ageratina adenophora |
6 |
| crownvetch |
Securigera varia |
13 |
| crystalline iceplant |
Mesembryanthemum crystallinum |
1 |
| cultivated knotweed |
Persicaria wallichii |
1 |
| cup rosinweed |
Silphium perfoliatum |
20 |
| curly dock |
Rumex crispus |
17 |
| curlyleaf pondweed |
Potamogeton crispus |
6 |
| cutleaf evening-primrose |
Oenothera laciniata |
2 |
| cutleaf geranium |
Geranium dissectum |
2 |
| cutleaf goosefoot |
Chenopodium multifidum |
1 |
| cutleaf nightshade |
Solanum triflorum |
2 |
| cutleaf teasel |
Dipsacus laciniatus |
22 |
| cypress spurge |
Euphorbia cyparissias |
29 |
| cypressvine morningglory |
Ipomoea quamoclit |
3 |
| Dalmatian toadflax |
Linaria dalmatica |
15 |
| dalmatian toadflax |
Linaria dalmatica ssp. dalmatica |
2 |
| dalmatian toadflax |
Linaria dalmatica ssp. macedonica |
1 |
| damesrocket |
Hesperis matronalis |
23 |
| dandelion |
Taraxacum officinale |
21 |
| dandelion |
Taraxacum spp. |
2 |
| Deptford pink |
Dianthus armeria |
1 |
| devil's-claw |
Proboscidea louisianica |
2 |
| devils beggarticks |
Bidens frondosa |
1 |
| diffuse knapweed |
Centaurea diffusa |
5 |
| dog-strangling vine, European swallowwort |
Cynanchum rossicum |
8 |
| dotted bridalveil |
Gibasis pellucida |
1 |
| Double Impatiens |
Impatiens walleriana |
1 |
| Douglas iris |
Iris douglasiana |
1 |
| doveweed |
Murdannia nudiflora |
2 |
| drug fumitory |
Fumaria officinalis |
2 |
| Drummond's beeblossom |
Gaura drummondii |
1 |
| duck-lettuce |
Ottelia alismoides |
5 |
| Dyer's woad |
Isatis tinctoria |
18 |
| eared salvinia |
Salvinia auriculata |
1 |
| early goldenrod |
Solidago juncea |
1 |
| English daisy |
Bellis perennis |
2 |
| Eurasian watermilfoil |
Myriophyllum spicatum |
26 |
| European pepperwort |
Marsilea quadrifolia |
30 |
| European sticktight |
Lappula squarrosa |
1 |
| European stinging nettle |
Urtica dioica ssp. dioica |
11 |
| evening-primrose |
Oenothera spp. |
1 |
| false chamomile |
Tripleurospermum perforatum |
11 |
| fanwort |
Cabomba caroliniana |
9 |
| fennel |
Foeniculum vulgare |
2 |
| fernleaf yarrow |
Achillea filipendulina |
9 |
| fiddleleaf dock |
Rumex pulcher |
1 |
| field bindweed |
Convolvulus arvensis |
34 |
| field dodder |
Cuscuta pentagona |
1 |
| field horsetail |
Equisetum arvense |
15 |
| field madder |
Sherardia arvensis |
3 |
| field marigold |
Calendula arvensis |
1 |
| field pansy |
Viola bicolor |
5 |
| field pennycress |
Thlaspi arvense |
13 |
| field violet |
Viola arvensis |
2 |
| flat-top goldentop |
Euthamia graminifolia var. graminifolia |
4 |
| fleabanes |
Erigeron spp. |
1 |
| flixweed |
Descurainia sophia |
4 |
| floating bladderwort |
Utricularia inflata |
1 |
| floating pennywort |
Hydrocotyle ranunculoides |
1 |
| Florida wild lettuce |
Lactuca floridana |
1 |
| flowering rush |
Butomus umbellatus |
9 |
| flue-cured tobacco |
Nicotiana tabacum (flue-cured type) |
2 |
| foxglove |
Digitalis purpurea |
3 |
| Fremont's deathcamas |
Zigadenus fremontii |
1 |
| fringed willowherb |
Epilobium ciliatum ssp. ciliatum |
1 |
| garden loosestrife |
Lysimachia vulgaris |
14 |
| garlic mustard |
Alliaria petiolata |
143 |
| giant hogweed |
Heracleum mantegazzianum |
81 |
| giant ironweed |
Vernonia gigantea gigantea |
9 |
| giant ragweed |
Ambrosia trifida |
6 |
| giant reed |
Arundo donax |
49 |
| giant salvinia |
Salvinia molesta |
25 |
| glandular Cape marigold |
Dimorphotheca sinuata |
1 |
| goatsbeard |
Tragopogon spp. |
2 |
| goatsrue |
Galega officinalis |
12 |
| golden ragwort |
Packera aurea |
1 |
| goldenrod |
Solidago spp. |
8 |
| gooseweed |
Sphenoclea zeylanica |
1 |
| great blue lobelia |
Lobelia siphilitica |
4 |
| great burdock |
Arctium lappa |
2 |
| great yellowcress |
Rorippa amphibia |
15 |
| greater ammi |
Ammi majus |
1 |
| greater celandine |
Chelidonium majus |
22 |
| ground ivy |
Glechoma hederacea |
55 |
| groundcherries |
Physalis spp. |
6 |
| hairy beggarticks |
Bidens pilosa |
1 |
| hairy bittercress |
Cardamine hirsuta |
73 |
| hairy buttercup |
Ranunculus sardous |
1 |
| hairy cat's ear |
Hypochaeris radicata |
11 |
| hairy fleabane |
Conyza bonariensis |
1 |
| hairy galinsoga |
Galinsoga ciliata |
5 |
| hairy galinsoga |
Galinsoga quadriradiata |
6 |
| hairy nightshade |
Solanum physalifolium |
3 |
| hairy purslane speedwell |
Veronica peregrina ssp. xalapensis |
1 |
| hairy vetch |
Vicia villosa |
9 |
| hairy white oldfield aster |
Symphyotrichum pilosum var. pilosum |
4 |
| hairy willowherb |
Epilobium hirsutum |
3 |
| halogeton |
Halogeton glomeratus |
11 |
| hawkweeds |
Hieracium spp. |
6 |
| healall |
Prunella vulgaris |
7 |
| heather |
Calluna vulgaris |
2 |
| hedge mustard |
Sisymbrium officinale |
2 |
| hedge smartweed |
Polygonum scandens |
1 |
| hedgeparsley |
Torilis arvensis |
2 |
| hemp dogbane |
Apocynum cannabinum |
10 |
| hemp sesbania |
Sesbania exaltata |
10 |
| henbit |
Lamium amplexicaule |
20 |
| herb-robert |
Geranium robertianum |
2 |
| high mallow |
Malva sylvestris |
1 |
| Hill mustard |
Bunias orientalis |
3 |
| hoary alyssum |
Berteroa incana |
1 |
| hoary cress |
Lepidium draba |
35 |
| honeyvine swallowwort |
Cynanchum laeve |
27 |
| Hooker's evening primrose |
Oenothera elata ssp. hookeri |
1 |
| hophornbeam copperleaf |
Acalypha ostryifolia |
2 |
| horehound |
Marrubium peregrinum |
1 |
| horned spurge |
Euphorbia brachycera |
1 |
| horse purslane |
Trianthema portulacastrum |
1 |
| horsenettle |
Solanum carolinense |
14 |
| horseweed |
Conyza canadensis |
25 |
| horseweeds |
Conyza spp. |
1 |
| houndstongue |
Cynoglossum officinale |
7 |
| hydrilla |
Hydrilla verticillata |
35 |
| hyssop loosestrife |
Lythrum hyssopifolium |
1 |
| incised halberd fern |
Tectaria incisa |
1 |
| Indian heliotrope |
Heliotropium indicum |
1 |
| Indian tobacco |
Nicotiana quadrivalvis |
1 |
| Indiantobacco |
Lobelia inflata |
3 |
| Italian plumeless thistle |
Carduus pycnocephalus |
3 |
| ivy gourd |
Coccinia grandis |
1 |
| ivyleaf morningglory |
Ipomoea hederacea |
13 |
| Japanese dodder |
Cuscuta japonica |
9 |
| Japanese hedgeparsley |
Torilis japonica |
2 |
| Japanese knotweed |
Fallopia japonica |
43 |
| Japanese pachysandra |
Pachysandra terminalis |
2 |
| Jerusalem artichoke |
Helianthus tuberosus |
5 |
| jewelweed |
Impatiens capensis |
1 |
| jimsonweed |
Datura stramonium |
29 |
| Kahila garland-lily |
Hedychium gardnerianum |
1 |
| Kenilworth ivy |
Cymbalaria muralis |
1 |
| Kerner's dock |
Rumex kerneri |
2 |
| knapweeds |
Centaurea spp. |
1 |
| knotted hedgeparsley |
Torilis nodosa |
2 |
| knotweed |
Polygonum spp. |
3 |
| Korean lespedeza |
Kummerowia stipulacea |
8 |
| ladysthumb |
Persicaria maculosa |
10 |
| Lamarck's bedstraw |
Galium divaricatum |
1 |
| Lambert crazyweed |
Oxytropis lambertii |
1 |
| lambsquarters |
Chenopodium album |
16 |
| lanceleaf sage |
Salvia reflexa |
3 |
| large hop clover |
Trifolium campestre |
1 |
| lawn burweed |
Soliva sessilis |
2 |
| lawn pennywort |
Hydrocotyle sibthorpioides |
1 |
| leafy spurge |
Euphorbia esula |
52 |
| lesser celandine, fig buttercup |
Ficaria verna |
35 |
| lesser swinecress |
Coronopus didymus |
1 |
| lilyturf |
Liriope spp. |
3 |
| little burclover |
Medicago minima |
3 |
| little mallow |
Malva parviflora |
2 |
| livid amaranth |
Amaranthus blitum |
4 |
| Madagascar ragwort |
Senecio madagascariensis |
1 |
| manyflower tobacco |
Nicotiana acuminata var. multiflora |
1 |
| marijuana |
Cannabis sativa |
1 |
| marsh dayflower |
Murdannia keisak |
6 |
| mat chaff-flower |
Alternanthera caracasana |
1 |
| mat lippia |
Phyla nodiflora |
1 |
| meadow campion |
Silene flos-cuculi |
17 |
| meadow deathcamas |
Zigadenus venenosus var. venenosus |
1 |
| meadow hawkweed |
Hieracium caespitosum |
5 |
| meadow knapweed |
Centaurea moncktonii |
1 |
| meadow salsify |
Tragopogon lamottei |
1 |
| Mediterranean sage |
Salvia aethiopis |
9 |
| Mediterranean saltwort |
Salsola vermiculata |
6 |
| Mexican brassbuttons |
Cotula mexicana |
1 |
| Mexican fireweed |
Kochia scoparia |
45 |
| Mexican whorled milkweed |
Asclepias fascicularis |
1 |
| mexicantea |
Dysphania ambrosioides |
4 |
| miner's lettuce |
Claytonia perfoliata |
2 |
| miramar weed |
Hygrophila polysperma |
1 |
| moneywort |
Lysimachia nummularia |
8 |
| monkeygrass |
Liriope muscari |
6 |
| montbretia |
Crocosmia x crocosmiiflora |
1 |
| Moroccan toadflax |
Linaria maroccana |
3 |
| moss vervain |
Glandularia pulchella |
1 |
| mossy stonecrop |
Sedum acre |
2 |
| moth mullein |
Verbascum blattaria |
11 |
| motherwort |
Leonurus cardiaca |
6 |
| mouseear hawkweed |
Hieracium pilosella |
1 |
| mugwort |
Artemisia vulgaris |
8 |
| mulberryweed |
Fatoua villosa |
5 |
| musk mallow |
Malva moschata |
2 |
| musk okra |
Abelmoschus moschatus |
3 |
| musk thistle |
Carduus nutans |
56 |
| myrtle spurge |
Euphorbia myrsinites |
3 |
| narrowleaf bittercress |
Cardamine impatiens |
73 |
| narrowleaf hawksbeard |
Crepis tectorum |
2 |
| New Zealand geranium |
Geranium retrorsum |
2 |
| nightflowering catchfly |
Silene noctiflora |
1 |
| nightshade |
Solanum spp. |
2 |
| northern waterplantain |
Alisma plantago-aquatica |
1 |
| oneflowered broomrape |
Orobanche uniflora |
2 |
| onerow yellowcress |
Nasturtium microphyllum |
7 |
| onionweed |
Asphodelus fistulosus |
6 |
| opium poppy |
Papaver somniferum |
1 |
| orange hawkweed |
Hieracium aurantiacum |
13 |
| Oriental lady's thumb |
Persicaria longiseta |
2 |
| ornamental jewelweed |
Impatiens glandulifera |
39 |
| oval-leaf knotweed |
Polygonum arenastrum |
1 |
| oxeye daisy |
Leucanthemum vulgare |
12 |
| Pacific poison-oak |
Toxicodendron diversilobum |
2 |
| painted poinsettia |
Euphorbia cyathophora |
2 |
| paleseed plantain |
Plantago virginica |
1 |
| Palmer amaranth |
Amaranthus palmeri |
12 |
| palmleaf morningglory |
Ipomoea wrightii |
1 |
| panicle willowherb |
Epilobium brachycarpum |
1 |
| pansy |
Viola tricolor |
1 |
| parrot feather milfoil |
Myriophyllum aquaticum |
9 |
| pennyroyal |
Mentha pulegium |
2 |
| perennial pepperweed |
Lepidium latifolium |
22 |
| perennial sowthistle |
Sonchus arvensis |
23 |
| perilla mint |
Perilla frutescens |
20 |
| Persian clover |
Trifolium resupinatum |
1 |
| Persian speedwell |
Veronica persica |
1 |
| pheasant's eye |
Adonis parviceps |
2 |
| pigweed |
Amaranthus spp. |
1 |
| pineapple-weed |
Matricaria discoidea |
9 |
| pitted morningglory |
Ipomoea lacunosa |
10 |
| poison-hemlock |
Conium maculatum |
21 |
| Powell amaranth |
Amaranthus powellii |
8 |
| prickly lettuce |
Lactuca serriola |
35 |
| prickly sida |
Sida spinosa |
16 |
| prostrate globe-amaranth |
Gomphrena serrata |
3 |
| prostrate knotweed |
Polygonum aviculare |
9 |
| prostrate pigweed |
Amaranthus blitoides |
5 |
| prostrate spurge |
Chamaesyce humistrata |
2 |
| purple deadnettle |
Lamium purpureum |
25 |
| purple loosestrife |
Lythrum salicaria |
74 |
| purple starthistle |
Centaurea calcitrapa |
8 |
| purple witchweed |
Striga hermonthica |
10 |
| purplestamen mullein |
Verbascum virgatum |
2 |
| purslane speedwell |
Veronica peregrina |
10 |
| Queen Anne's lace, wild carrot |
Daucus carota |
11 |
| red clover |
Trifolium pratense |
14 |
| red sorrel |
Rumex acetosella |
39 |
| redmaids |
Calandrinia ciliata |
2 |
| redroot pigweed |
Amaranthus retroflexus |
17 |
| redstem filaree |
Erodium cicutarium |
2 |
| rock fumewort |
Pseudofumaria lutea |
1 |
| rough cinquefoil |
Potentilla norvegica |
7 |
| rough peavine |
Lathyrus hirsutus |
1 |
| rush skeletonweed |
Chondrilla juncea |
8 |
| Russian knapweed |
Rhaponticum repens |
9 |
| Russian thistle |
Salsola kali |
3 |
| Russian-thistle |
Salsola tragus |
15 |
| sacred thorn-apple |
Datura wrightii |
1 |
| Sakhalin knotweed |
Fallopia sachalinensis |
5 |
| saltbush |
Atriplex spp. |
2 |
| scarlet gaura |
Gaura coccinea |
1 |
| scarlet pimpernel |
Lysimachia arvensis |
8 |
| Scotch thistle |
Onopordum acanthium |
44 |
| scouringrush |
Equisetum hyemale |
3 |
| sea fig |
Carpobrotus chilensis |
1 |
| seashore vervain |
Verbena montevidensis |
1 |
| sericea lespedeza |
Lespedeza cuneata |
20 |
| sharpleaf groundcherry |
Physalis acutifolia |
1 |
| sharppoint fluvellin |
Kickxia elatine |
2 |
| shepherd's-purse |
Capsella bursa-pastoris |
17 |
| shortfruit stork's bill |
Erodium brachycarpum |
2 |
| showy milkweed |
Asclepias speciosa |
3 |
| showy rattlebox |
Crotalaria spectabilis |
4 |
| showy stonecrop |
Hylotelephium spectabile |
1 |
| shrubby lespedeza |
Lespedeza bicolor |
6 |
| sicklepod |
Senna obtusifolia |
13 |
| silverleaf nightshade |
Solanum elaeagnifolium |
1 |
| silversheath knotweed |
Polygonum argyrocoleon |
1 |
| skeletonleaf bursage |
Ambrosia tomentosa |
1 |
| slender false garlic |
Nothoscordum gracile |
1 |
| slender snakecotton |
Froelichia gracilis |
11 |
| slender speedwell |
Veronica filiformis |
1 |
| slenderflower thistle |
Carduus tenuiflorus |
1 |
| slenderleaf iceplant |
Mesembryanthemum nodiflorum |
1 |
| small broomrape |
Orobanche minor |
35 |
| small flower touch-me-not |
Impatiens parviflora |
4 |
| smallseed falseflax |
Camelina microcarpa |
1 |
| smooth bedstraw |
Cruciata laevipes |
4 |
| smooth bedstraw |
Galium mollugo |
12 |
| smooth groundcherry |
Physalis longifolia var. subglabrata |
6 |
| smooth hawksbeard |
Crepis capillaris |
1 |
| smooth pigweed |
Amaranthus hybridus |
14 |
| southern brassbuttons |
Cotula australis |
2 |
| southern nettle |
Urtica chamaedryoides |
1 |
| spearmint |
Mentha spicata |
2 |
| speedwell |
Veronica spp. |
3 |
| spiny amaranth |
Amaranthus spinosus |
3 |
| spiny cocklebur |
Xanthium spinosum |
1 |
| spiny plumeless thistle |
Carduus acanthoides |
11 |
| spiny sowthistle |
Sonchus asper |
8 |
| spinyfruit buttercup |
Ranunculus muricatus |
2 |
| spotted joe pye weed |
Eupatoriadelphus maculatus |
2 |
| spotted knapweed |
Centaurea stoebe |
71 |
| spotted knapweed |
Centaurea stoebe ssp. micranthos |
33 |
| spotted spurge |
Euphorbia maculata |
2 |
| spotted water hemlock |
Cicuta maculata var. angustifolia |
1 |
| spreadfruit goldenbanner |
Thermopsis divaricarpa |
1 |
| spreading pellitory |
Parietaria judaica |
1 |
| spurge |
Euphorbia spp. |
1 |
| squarrose knapweed |
Centaurea virgata |
11 |
| St. Johnswort |
Hypericum spp. |
1 |
| star-of-Bethlehem |
Ornithogalum umbellatum |
19 |
| stinging nettle |
Urtica dioica ssp. holosericea |
1 |
| stinking chamomile |
Anthemis cotula |
5 |
| stork's bill |
Erodium spp. |
1 |
| sulfur cinquefoil |
Potentilla recta |
13 |
| sulphur knapweed |
Centaurea sulphurea |
1 |
| summer pheasant's eye |
Adonis aestivalis |
2 |
| swainsonpea |
Sphaerophysa salsula |
3 |
| swamp milkweed |
Asclepias incarnata |
6 |
| Syrian beancaper |
Zygophyllum fabago |
4 |
| tall buttercup |
Ranunculus acris |
9 |
| tall fleabane |
Conyza floribunda |
1 |
| tall ironweed |
Vernonia gigantea |
7 |
| tall lettuce |
Lactuca canadensis |
1 |
| tall morningglory |
Ipomoea purpurea |
7 |
| tall vervain |
Verbena bonariensis |
3 |
| tall waterhemp |
Amaranthus tuberculatus |
11 |
| tansy ragwort |
Senecio jacobaea |
56 |
| tawny daylily |
Hemerocallis fulva |
5 |
| teasel |
Dipsacus spp. |
3 |
| Texas bindweed |
Convolvulus equitans |
1 |
| Texas filaree |
Erodium texanum |
1 |
| three-cornered leek |
Allium triquetrum |
1 |
| threebract loosestrife |
Lythrum tribracteatum |
1 |
| Thunberg lespedeza |
Lespedeza thunbergii |
2 |
| Thunberg's geranium |
Geranium thunbergii |
11 |
| tiger lily |
Lilium lancifolium |
2 |
| toadflax |
Linaria spp. |
4 |
| tomatillo groundcherry |
Physalis philadelphica |
1 |
| toothed spurge |
Euphorbia dentata |
4 |
| touch-me-not |
Impatiens spp. |
3 |
| tropic croton |
Croton glandulosus var. septentrionalis |
1 |
| true forget-me-not |
Myosotis scorpioides |
11 |
| tuberous vervain |
Verbena rigida |
1 |
| tumble mustard |
Sisymbrium altissimum |
1 |
| tumble pigweed |
Amaranthus albus |
8 |
| turkeyberry |
Solanum torvum |
7 |
| turnipweed |
Rapistrum rugosum |
8 |
| twoleaf watermilfoil |
Myriophyllum heterophyllum |
28 |
| twolobe speedwell |
Veronica biloba |
3 |
| velvetleaf |
Abutilon theophrasti |
34 |
| Venice mallow |
Hibiscus trionum |
9 |
| venus-comb |
Scandix pecten-veneris |
1 |
| vinegarweed |
Trichostema lanceolatum |
2 |
| violet |
Viola spp. |
3 |
| Virginia copperleaf |
Acalypha virginica |
1 |
| Virginia groundcherry |
Physalis virginiana |
1 |
| Virginia pepperweed |
Lepidium virginicum |
7 |
| wall bedstraw |
Galium parisiense |
1 |
| wall lettuce |
Mycelis muralis |
59 |
| wall rocket |
Diplotaxis tenuifolia |
1 |
| water fern |
Salvinia minima |
6 |
| water knotweed |
Polygonum amphibium |
12 |
| water speedwell |
Veronica anagallis-aquatica |
1 |
| watercresses and yellowcresses |
Nasturtium spp. |
6 |
| waterlettuce |
Pistia stratiotes |
24 |
| wavyleaf gaura |
Gaura sinuata |
1 |
| wavyleaf thistle |
Cirsium undulatum |
1 |
| West Indian nightshade |
Solanum ptycanthum |
25 |
| western salsify |
Tragopogon dubius |
11 |
| western waterhemlock |
Cicuta douglasii |
1 |
| white clover |
Trifolium repens |
16 |
| white garlic |
Allium neapolitanum |
1 |
| white heath aster |
Symphyotrichum ericoides var. ericoides |
7 |
| white horehound |
Marrubium vulgare |
5 |
| white snakeroot |
Ageratina altissima |
2 |
| white snakeroot |
Ageratina altissima var. altissima |
4 |
| white vervain |
Verbena urticifolia |
6 |
| whitestem filaree |
Erodium moschatum |
1 |
| wild buckwheat |
Fallopia convolvulus |
11 |
| wild carrot |
Daucus carota ssp. carota |
2 |
| wild celery |
Cyclospermum leptophyllum |
1 |
| wild chervil |
Anthriscus sylvestris |
29 |
| wild four-o'clock |
Mirabilis nyctaginea |
16 |
| wild garlic |
Allium vineale |
27 |
| wild mustard |
Sinapis arvensis |
9 |
| wild onion |
Allium canadense |
5 |
| wild parsnip |
Pastinaca sativa |
24 |
| wild radish |
Raphanus raphanistrum |
1 |
| winged waterprimrose |
Ludwigia decurrens |
1 |
| winged yam |
Dioscorea alata |
8 |
| witchweed |
Striga asiatica |
2 |
| witchweed |
Striga spp. |
10 |
| wood whitlowgrass |
Draba nemorosa |
4 |
| woolly distaff thistle |
Carthamus lanatus |
3 |
| woollyleaf bursage |
Ambrosia grayi |
1 |
| yellow alyssum |
Alyssum alyssoides |
1 |
| yellow bedstraw |
Galium verum |
1 |
| yellow chamomile |
Anthemis tinctoria |
1 |
| yellow fieldcress |
Rorippa sylvestris |
1 |
| yellow glandweed |
Parentucellia viscosa |
2 |
| yellow hornpoppy |
Glaucium flavum |
12 |
| yellow rocket |
Barbarea vulgaris |
13 |
| yellow starthistle |
Centaurea solstitialis |
53 |
| yellow sweetclover |
Melilotus officinalis |
16 |
| yellow thistle |
Cirsium horridulum |
1 |
| yellow toadflax |
Linaria vulgaris |
25 |
| yellow unicorn-plant |
Ibicella lutea |
4 |
| yellow wall bedstraw |
Galium murale |
1 |
| yellow woodsorrel |
Oxalis stricta |
7 |
| yellowflag iris |
Iris pseudacorus |
41 |
| yellowspine thistle |
Cirsium ochrocentrum |
1 |
