| African mustard |
Brassica tournefortii |
1 |
| alkali mallow |
Malvella leprosa |
1 |
| alkaliweed |
Cressa truxillensis |
1 |
| alpine knapweed |
Centaurea nigrescens |
1 |
| American black nightshade |
Solanum americanum |
1 |
| American speedwell |
Veronica americana |
1 |
| annual bursage |
Ambrosia acanthicarpa |
1 |
| annual fleabane |
Erigeron annuus |
1 |
| annual pearlwort |
Sagina apetala |
1 |
| annual sowthistle |
Sonchus oleraceus |
1 |
| apple mint |
Mentha suaveolens |
1 |
| arrowleaf sida |
Sida rhombifolia |
1 |
| Athel tamarisk |
Tamarix aphylla |
1 |
| babysbreath |
Gypsophila paniculata |
1 |
| barbwire Russian-thistle |
Salsola paulsenii |
1 |
| bellardia |
Bellardia trixago |
1 |
| biddy-biddy |
Acaena novae-zelandiae |
1 |
| biennial wormwood |
Artemisia biennis |
1 |
| big periwinkle |
Vinca major |
2 |
| birdsrape mustard |
Brassica rapa |
1 |
| bitter lettuce |
Lactuca virosa |
2 |
| bittersweet nightshade |
Solanum dulcamara |
1 |
| black henbane |
Hyoscyamus niger |
1 |
| black knapweed |
Centaurea nigra |
1 |
| black mustard |
Brassica nigra |
1 |
| black nightshade |
Solanum nigrum |
1 |
| bladder campion |
Silene latifolia ssp. alba |
1 |
| blessed milkthistle |
Silybum marianum |
1 |
| blessed thistle |
Cnicus benedictus |
1 |
| blue lettuce |
Lactuca tatarica var. pulchella |
2 |
| blue morningglory |
Ipomoea indica |
1 |
| blue mustard |
Chorispora tenella |
1 |
| Boccone's sandspurry |
Spergularia bocconii |
1 |
| bouncingbet |
Saponaria officinalis |
1 |
| brassbuttons |
Cotula coronopifolia |
1 |
| brightblue speedwell |
Veronica serpyllifolia ssp. humifusa |
1 |
| bristly hawksbeard |
Crepis setosa |
1 |
| broadleaf forget-me-not |
Myosotis latifolia |
1 |
| broadleaf plantain |
Plantago major |
1 |
| buckhorn plantain |
Plantago coronopus |
1 |
| buckhorn plantain |
Plantago lanceolata |
1 |
| buffalo gourd |
Cucurbita foetidissima |
1 |
| buffalobur |
Solanum rostratum |
2 |
| bull mallow |
Malva nicaeensis |
1 |
| bull thistle |
Cirsium vulgare |
1 |
| bur beggarticks |
Bidens tripartita |
1 |
| buttercup oxalis |
Oxalis pes-caprae |
1 |
| California blackberry |
Rubus ursinus |
2 |
| California loosestrife |
Lythrum californicum |
1 |
| California mugwort |
Artemisia douglasiana |
1 |
| California nettle |
Urtica dioica ssp. gracilis |
1 |
| Canada thistle |
Cirsium arvense |
2 |
| canyon dodder |
Cuscuta ceanothi |
1 |
| cape ivy |
Delairea odorata |
1 |
| cardoon |
Cynara cardunculus |
1 |
| Carolina geranium |
Geranium carolinianum |
1 |
| carpetweed |
Mollugo verticillata |
1 |
| cherry plum |
Prunus cerasifera |
2 |
| chicory |
Cichorium intybus |
2 |
| Chinese thorn-apple |
Datura quercifolia |
1 |
| clammy goosefoot |
Dysphania pumilio |
1 |
| clasping heliotrope |
Heliotropium amplexicaule |
1 |
| cluster dock |
Rumex conglomeratus |
1 |
| common beet |
Beta vulgaris |
1 |
| common borage |
Borago officinalis |
1 |
| common chickweed |
Stellaria pallida |
1 |
| common comfrey |
Symphytum officinale |
1 |
| common crupina |
Crupina vulgaris |
2 |
| common evening-primrose |
Oenothera biennis |
1 |
| common fiddleneck |
Amsinckia menziesii var. intermedia |
2 |
| common groundsel |
Senecio vulgaris |
1 |
| common mallow |
Malva neglecta |
1 |
| common mouse-ear chickweed |
Cerastium fontanum |
1 |
| common mullein |
Verbascum thapsus |
1 |
| common purslane |
Portulaca oleracea |
1 |
| common ragweed |
Ambrosia artemisiifolia |
1 |
| common salsify |
Tragopogon porrifolius |
1 |
| common St. Johnswort |
Hypericum perforatum |
1 |
| common sunflower |
Helianthus annuus |
1 |
| common tansy |
Tanacetum vulgare |
1 |
| common tarweed |
Centromadia pungens ssp. pungens |
1 |
| common teasel |
Dipsacus fullonum |
1 |
| common yarrow |
Achillea millefolium |
1 |
| corn chamomile |
Anthemis arvensis |
1 |
| corn speedwell |
Veronica arvensis |
1 |
| cornflower |
Centaurea cyanus |
1 |
| Cornish mallow |
Lavatera cretica |
2 |
| coyote willow |
Salix exigua |
1 |
| creeping buttercup |
Ranunculus repens |
1 |
| creeping woodsorrel |
Oxalis corniculata |
1 |
| cultivated knotweed |
Persicaria wallichii |
1 |
| curlycup gumweed |
Grindelia squarrosa var. serrulata |
1 |
| cutleaf burnweed |
Erechtites glomeratus |
1 |
| cutleaf evening-primrose |
Oenothera laciniata |
1 |
| cutleaf goosefoot |
Chenopodium multifidum |
1 |
| dalmatian toadflax |
Linaria dalmatica ssp. dalmatica |
2 |
| devil's-claw |
Proboscidea louisianica |
1 |
| devils beggarticks |
Bidens frondosa |
1 |
| diffuse knapweed |
Centaurea diffusa |
1 |
| dog rose |
Rosa canina |
1 |
| dotted smartweed |
Persicaria punctata |
1 |
| drug fumitory |
Fumaria officinalis |
1 |
| Drummond's beeblossom |
Gaura drummondii |
1 |
| dwarf St. Johnswort |
Hypericum mutilum |
2 |
| Dyer's woad |
Isatis tinctoria |
1 |
| earleaf nightshade |
Solanum mauritianum |
1 |
| early wintercress |
Barbarea verna |
1 |
| Eastwood's fiddleneck |
Amsinckia eastwoodiae |
1 |
| English catchfly |
Silene gallica |
1 |
| English daisy |
Bellis perennis |
1 |
| English hawthorn |
Crataegus monogyna |
1 |
| English violet |
Viola odorata |
1 |
| European heliotrope |
Heliotropium europaeum |
1 |
| fennel |
Foeniculum vulgare |
1 |
| feverfew |
Tanacetum parthenium |
1 |
| field bindweed |
Convolvulus arvensis |
2 |
| field dodder |
Cuscuta pentagona |
1 |
| field madder |
Sherardia arvensis |
1 |
| fireweed |
Chamerion angustifolium |
1 |
| fivehook bassia |
Bassia hyssopifolia |
2 |
| flixweed |
Descurainia sophia |
1 |
| foxglove |
Digitalis purpurea |
2 |
| fringed willowherb |
Epilobium ciliatum ssp. watsonii |
1 |
| Fuller's teasel |
Dipsacus sativus |
1 |
| fumitory |
Fumaria spp. |
1 |
| garden orach |
Atriplex hortensis |
1 |
| giant ragweed |
Ambrosia trifida |
1 |
| glandular Cape marigold |
Dimorphotheca sinuata |
1 |
| Goodding's willow |
Salix gooddingii |
1 |
| Great Valley gumweed |
Grindelia camporum var. camporum |
1 |
| greater ammi |
Ammi majus |
1 |
| greater swinecress |
Coronopus squamatus |
1 |
| hairy beggarticks |
Bidens pilosa |
2 |
| hairy buttercup |
Ranunculus sardous |
1 |
| hairy cat's ear |
Hypochaeris radicata |
1 |
| hairy fleabane |
Conyza bonariensis |
1 |
| hairy whitetop |
Cardaria pubescens |
1 |
| halogeton |
Halogeton glomeratus |
1 |
| hedge mustard |
Sisymbrium officinale |
1 |
| hedgeparsley |
Torilis arvensis |
1 |
| henbit |
Lamium amplexicaule |
1 |
| high mallow |
Malva sylvestris |
1 |
| hoary cress |
Lepidium draba |
1 |
| Hooker's evening primrose |
Oenothera elata ssp. hookeri |
1 |
| horse purslane |
Trianthema portulacastrum |
1 |
| horsenettle |
Solanum carolinense |
1 |
| horseweed |
Conyza canadensis |
1 |
| hottentot fig |
Carpobrotus edulis |
2 |
| houndstongue |
Cynoglossum officinale |
1 |
| hyssop loosestrife |
Lythrum hyssopifolium |
1 |
| Indian mustard |
Brassica juncea |
1 |
| Indian tobacco |
Nicotiana quadrivalvis |
1 |
| Italian plumeless thistle |
Carduus pycnocephalus |
1 |
| Japanese knotweed |
Fallopia japonica |
2 |
| Jersey cudweed |
Pseudognaphalium luteoalbum |
1 |
| Jerusalem-oak goosefoot |
Chenopodium botrys |
1 |
| jimsonweed |
Datura stramonium |
1 |
| Kellogg's tarweed |
Deinandra kelloggii |
2 |
| ladysthumb |
Persicaria maculosa |
1 |
| lambsquarters |
Chenopodium album |
1 |
| London rocket |
Sisymbrium irio |
1 |
| longroot smartweed |
Polygonum amphibium var. emersum |
1 |
| low amaranth |
Amaranthus deflexus |
1 |
| Malta starthistle |
Centaurea melitensis |
1 |
| manyflower tobacco |
Nicotiana acuminata var. multiflora |
1 |
| marshpepper smartweed |
Polygonum hydropiper |
1 |
| mat chaff-flower |
Alternanthera caracasana |
1 |
| Maximilian sunflower |
Helianthus maximiliani |
1 |
| meadow hawkweed |
Hieracium caespitosum |
1 |
| Mediterranean rocket |
Sisymbrium erysimoides |
1 |
| Mediterranean sage |
Salvia aethiopis |
1 |
| Mediterranean saltwort |
Salsola vermiculata |
1 |
| Mexican fireweed |
Kochia scoparia |
1 |
| Mexican whorled milkweed |
Asclepias fascicularis |
1 |
| mexicantea |
Dysphania ambrosioides |
1 |
| milkflower cotoneaster |
Cotoneaster coriaceus |
1 |
| miner's lettuce |
Claytonia perfoliata |
1 |
| Missouri lambsquarters |
Chenopodium album var. missouriense |
1 |
| Moroccan toadflax |
Linaria maroccana |
2 |
| moss vervain |
Glandularia pulchella |
1 |
| moth mullein |
Verbascum blattaria |
2 |
| mouse-ear cress |
Arabidopsis thaliana |
1 |
| multiflora rose |
Rosa multiflora |
1 |
| musk thistle |
Carduus nutans |
1 |
| narrow-leaved iceplant |
Conicosia pugioniformis |
1 |
| nettleleaf goosefoot |
Chenopodium murale |
1 |
| ngaio tree |
Myoporum laetum |
1 |
| nightflowering catchfly |
Silene noctiflora |
1 |
| North African knapweed |
Centaurea diluta |
1 |
| orange cotoneaster |
Cotoneaster franchetii |
1 |
| orange hawkweed |
Hieracium aurantiacum |
1 |
| orangeberry nightshade |
Solanum lanceolatum |
2 |
| oriental mustard |
Sisymbrium orientale |
1 |
| osage-orange |
Maclura pomifera |
1 |
| oval-leaf knotweed |
Polygonum arenastrum |
1 |
| oxeye daisy |
Leucanthemum vulgare |
1 |
| pale smartweed |
Persicaria lapathifolia |
1 |
| paleseed plantain |
Plantago virginica |
1 |
| Palmer amaranth |
Amaranthus palmeri |
1 |
| pansy |
Viola tricolor |
1 |
| pappose tarweed |
Centromadia parryi ssp. rudis |
1 |
| Pennsylvania smartweed |
Polygonum pensylvanicum |
1 |
| pennyroyal |
Mentha pulegium |
1 |
| peregrine thistle |
Cirsium cymosum |
1 |
| perennial pepperweed |
Lepidium latifolium |
1 |
| Persian speedwell |
Veronica persica |
1 |
| pine echium |
Echium pininana |
2 |
| pineapple-weed |
Matricaria discoidea |
1 |
| pinnate tansymustard |
Descurainia pinnata |
1 |
| pride of Madeira |
Echium candicans |
1 |
| purple cudweed |
Gamochaeta purpurea |
1 |
| purple deadnettle |
Lamium purpureum |
1 |
| purple loosestrife |
Lythrum salicaria |
3 |
| purple starthistle |
Centaurea calcitrapa |
1 |
| purple toadflax |
Linaria purpurea |
2 |
| purplestamen mullein |
Verbascum virgatum |
1 |
| radish |
Raphanus sativus |
1 |
| red larkspur |
Delphinium nudicaule |
1 |
| red orach |
Atriplex rosea |
1 |
| red sandspurry |
Spergularia rubra |
1 |
| red sorrel |
Rumex acetosella |
2 |
| red willow |
Salix laevigata |
3 |
| redflower gum |
Eucalyptus ficifolia |
1 |
| redmaids |
Calandrinia ciliata |
1 |
| redpurple ragwort |
Senecio elegans |
1 |
| redroot pigweed |
Amaranthus retroflexus |
1 |
| rush skeletonweed |
Chondrilla juncea |
1 |
| Russian knapweed |
Rhaponticum repens |
1 |
| Russian thistle |
Salsola kali ssp. austroafricana |
1 |
| Russian-thistle |
Salsola tragus |
2 |
| sacred thorn-apple |
Datura wrightii |
1 |
| Sakhalin knotweed |
Fallopia sachalinensis |
1 |
| saltcedar |
Tamarix ramosissima |
2 |
| salvation jane |
Echium plantagineum |
2 |
| San Bernardino larkspur |
Delphinium parryi |
1 |
| scarlet gaura |
Gaura coccinea |
1 |
| scarlet pimpernel |
Lysimachia arvensis |
2 |
| Scotch thistle |
Onopordum acanthium |
1 |
| seashore vervain |
Verbena montevidensis |
1 |
| seaside heliotrope |
Heliotropium curassavicum |
1 |
| seepwillow |
Baccharis salicifolia |
2 |
| sharppoint fluvellin |
Kickxia elatine |
1 |
| shepherd's-purse |
Capsella bursa-pastoris |
1 |
| shortfruit stork's bill |
Erodium brachycarpum |
1 |
| shortpod mustard |
Hirschfeldia incana |
1 |
| showy dewflower |
Drosanthemum floribundum |
1 |
| showy evening-primrose |
Oenothera speciosa |
1 |
| showy milkweed |
Asclepias speciosa |
1 |
| sibara |
Sibara virginica |
1 |
| silverleaf cotoneaster |
Cotoneaster pannosus |
1 |
| silverleaf nightshade |
Solanum elaeagnifolium |
2 |
| silversheath knotweed |
Polygonum argyrocoleon |
1 |
| skunkbush sumac |
Rhus trilobata |
1 |
| slender aster |
Symphyotrichum divaricatum |
2 |
| slender cinquefoil |
Potentilla gracilis |
1 |
| slender speedwell |
Veronica filiformis |
1 |
| slenderflower thistle |
Carduus tenuiflorus |
1 |
| smallflower tamarisk |
Tamarix parviflora |
1 |
| smooth bedstraw |
Galium mollugo |
1 |
| smooth hawksbeard |
Crepis capillaris |
1 |
| smooth pigweed |
Amaranthus hybridus |
1 |
| southern brassbuttons |
Cotula australis |
1 |
| southwestern carrot |
Daucus pusillus |
1 |
| spearmint |
Mentha spicata |
1 |
| spiny plumeless thistle |
Carduus acanthoides |
1 |
| spotted knapweed |
Centaurea stoebe ssp. micranthos |
2 |
| spotted water hemlock |
Cicuta maculata var. angustifolia |
1 |
| squarrose knapweed |
Centaurea virgata |
1 |
| sticky sandspurry |
Spergularia macrotheca |
1 |
| stinking chamomile |
Anthemis cotula |
1 |
| strawflower |
Helichrysum petiolare |
1 |
| sulfur cinquefoil |
Potentilla recta |
1 |
| swamp smartweed |
Persicaria hydropiperoides |
1 |
| tall fleabane |
Conyza floribunda |
1 |
| tall hedge mustard |
Sisymbrium loeselii |
1 |
| tall morningglory |
Ipomoea purpurea |
1 |
| tall vervain |
Verbena bonariensis |
1 |
| Tasmanian bluegum |
Eucalyptus globulus |
1 |
| telegraphplant |
Heterotheca grandiflora |
2 |
| threebract loosestrife |
Lythrum tribracteatum |
1 |
| tomatillo groundcherry |
Physalis philadelphica |
1 |
| toothpick ammi |
Ammi visnaga |
1 |
| tree tobacco |
Nicotiana glauca |
1 |
| triangle orach |
Atriplex prostrata |
1 |
| true forget-me-not |
Myosotis scorpioides |
1 |
| tumble mustard |
Sisymbrium altissimum |
1 |
| veiny pepperweed |
Lepidium oblongum var. oblongum |
1 |
| velvetleaf |
Abutilon theophrasti |
1 |
| Venice mallow |
Hibiscus trionum |
3 |
| venus-comb |
Scandix pecten-veneris |
1 |
| virgate tarweed |
Holocarpha virgata |
1 |
| water speedwell |
Veronica anagallis-aquatica |
1 |
| wavyleaf gaura |
Gaura sinuata |
2 |
| wavyleaf thistle |
Cirsium undulatum |
1 |
| western ragweed |
Ambrosia psilostachya |
1 |
| western salsify |
Tragopogon dubius |
1 |
| white bladderflower |
Araujia sericifera |
1 |
| white horehound |
Marrubium vulgare |
1 |
| white mustard |
Sinapis alba |
1 |
| white ramping fumitory |
Fumaria capreolata |
1 |
| whiteplume wirelettuce |
Stephanomeria exigua ssp. coronaria |
1 |
| whitestem filaree |
Erodium moschatum |
1 |
| wild buckwheat |
Fallopia convolvulus |
1 |
| wild mustard |
Sinapis arvensis |
1 |
| wild parsnip |
Pastinaca sativa |
1 |
| wild radish |
Raphanus raphanistrum |
1 |
| willowleaf lettuce |
Lactuca saligna |
1 |
| windowbox woodsorrel |
Oxalis rubra |
1 |
| yellow bedstraw |
Galium verum |
1 |
| yellow chamomile |
Anthemis tinctoria |
1 |
| yellow glandweed |
Parentucellia viscosa |
1 |
| yellow rocket |
Barbarea vulgaris |
1 |
| yellow toadflax |
Linaria vulgaris |
1 |
| yellowspine thistle |
Cirsium ochrocentrum |
1 |
| zigzag larkspur |
Delphinium patens |
1 |
