| alkali mallow |
Malvella leprosa |
1 |
| alpine knapweed |
Centaurea nigrescens |
1 |
| annual bursage |
Ambrosia acanthicarpa |
1 |
| annual sowthistle |
Sonchus oleraceus |
1 |
| asparagus |
Asparagus officinalis |
4 |
| bellardia |
Bellardia trixago |
1 |
| Benghal dayflower |
Commelina benghalensis |
12 |
| biddy-biddy |
Acaena novae-zelandiae |
1 |
| big chickweed |
Cerastium fontanum ssp. vulgare |
4 |
| birdsfoot trefoil |
Lotus corniculatus |
5 |
| bittercress |
Cardamine spp. |
2 |
| Black dog-strangling vine, black swallowwort |
Cynanchum louiseae |
2 |
| black henbane |
Hyoscyamus niger |
2 |
| black knapweed |
Centaurea nigra |
1 |
| blackseed plantain |
Plantago rugelii |
2 |
| bladder campion |
Silene latifolia ssp. alba |
7 |
| blessed thistle |
Cnicus benedictus |
1 |
| bouncingbet |
Saponaria officinalis |
2 |
| brightblue speedwell |
Veronica serpyllifolia ssp. humifusa |
1 |
| bristly hawksbeard |
Crepis setosa |
1 |
| bristly mallow |
Modiola caroliniana |
1 |
| broadleaf dock |
Rumex obtusifolius |
5 |
| broadleaf plantain |
Plantago major |
3 |
| buckhorn plantain |
Plantago lanceolata |
1 |
| buffalobur |
Solanum rostratum |
1 |
| bull mallow |
Malva nicaeensis |
1 |
| bull thistle |
Cirsium vulgare |
2 |
| bur chervil |
Anthriscus caucalis |
1 |
| burcucumber |
Sicyos angulatus |
2 |
| burning nettle |
Urtica urens |
1 |
| butterfly milkweed |
Asclepias tuberosa |
3 |
| Canada thistle |
Cirsium arvense |
24 |
| Carolina geranium |
Geranium carolinianum |
1 |
| catchweed bedstraw |
Galium aparine |
2 |
| chicory |
Cichorium intybus |
2 |
| Chinese thorn-apple |
Datura quercifolia |
1 |
| Chinese yam |
Dioscorea polystachya |
1 |
| clammy goosefoot |
Dysphania pumilio |
1 |
| clasping pepperweed |
Lepidium perfoliatum |
1 |
| cluster dock |
Rumex conglomeratus |
1 |
| coltsfoot |
Tussilago farfara |
2 |
| common burdock |
Arctium minus |
5 |
| common chickweed |
Stellaria pallida |
2 |
| common cocklebur |
Xanthium strumarium |
3 |
| common comfrey |
Symphytum officinale |
2 |
| common crupina |
Crupina vulgaris |
3 |
| common groundsel |
Senecio vulgaris |
3 |
| common mallow |
Malva neglecta |
8 |
| common milkweed |
Asclepias syriaca |
7 |
| common mouse-ear chickweed |
Cerastium fontanum |
1 |
| common mullein |
Verbascum thapsus |
7 |
| common pokeweed |
Phytolacca americana |
18 |
| common purslane |
Portulaca oleracea |
8 |
| common ragweed |
Ambrosia artemisiifolia |
6 |
| common St. Johnswort |
Hypericum perforatum |
1 |
| common sunflower |
Helianthus annuus |
3 |
| common teasel |
Dipsacus fullonum |
2 |
| common valerian |
Valeriana officinalis |
1 |
| common waterhemp |
Amaranthus rudis |
2 |
| common yarrow |
Achillea millefolium |
6 |
| corn chamomile |
Anthemis arvensis |
1 |
| corn gromwell |
Buglossoides arvensis |
1 |
| cornflower |
Centaurea cyanus |
1 |
| Cornish mallow |
Lavatera cretica |
1 |
| creeping buttercup |
Ranunculus repens |
1 |
| creeping woodsorrel |
Oxalis corniculata |
1 |
| crownvetch |
Securigera varia |
4 |
| curly dock |
Rumex crispus |
7 |
| cutleaf geranium |
Geranium dissectum |
1 |
| cutleaf goosefoot |
Chenopodium multifidum |
1 |
| cutleaf nightshade |
Solanum triflorum |
1 |
| Dalmatian toadflax |
Linaria dalmatica |
1 |
| dalmatian toadflax |
Linaria dalmatica ssp. dalmatica |
1 |
| dandelion |
Taraxacum officinale |
7 |
| dandelion |
Taraxacum spp. |
2 |
| devils beggarticks |
Bidens frondosa |
1 |
| diffuse knapweed |
Centaurea diffusa |
1 |
| dovefoot geranium |
Geranium molle |
1 |
| drug fumitory |
Fumaria officinalis |
1 |
| European stinging nettle |
Urtica dioica ssp. dioica |
5 |
| fennel |
Foeniculum vulgare |
1 |
| field bindweed |
Convolvulus arvensis |
2 |
| field horsetail |
Equisetum arvense |
1 |
| field pennycress |
Thlaspi arvense |
4 |
| field violet |
Viola arvensis |
1 |
| flixweed |
Descurainia sophia |
1 |
| fringed willowherb |
Epilobium ciliatum ssp. ciliatum |
1 |
| Fuller's teasel |
Dipsacus sativus |
1 |
| garlic mustard |
Alliaria petiolata |
15 |
| giant ragweed |
Ambrosia trifida |
7 |
| goldenrod |
Solidago spp. |
3 |
| great burdock |
Arctium lappa |
1 |
| ground ivy |
Glechoma hederacea |
1 |
| groundcherries |
Physalis spp. |
3 |
| hairy beggarticks |
Bidens pilosa |
1 |
| hairy fleabane |
Conyza bonariensis |
1 |
| hairy galinsoga |
Galinsoga quadriradiata |
2 |
| hairy nightshade |
Solanum physalifolium |
2 |
| hairy white oldfield aster |
Symphyotrichum pilosum var. pilosum |
3 |
| halogeton |
Halogeton glomeratus |
1 |
| hawkweeds |
Hieracium spp. |
2 |
| healall |
Prunella vulgaris |
4 |
| hedgeparsley |
Torilis arvensis |
1 |
| hemp dogbane |
Apocynum cannabinum |
12 |
| hemp sesbania |
Sesbania exaltata |
1 |
| henbit |
Lamium amplexicaule |
6 |
| herb-robert |
Geranium robertianum |
1 |
| high mallow |
Malva sylvestris |
1 |
| hoary cress |
Lepidium draba |
6 |
| honeyvine swallowwort |
Cynanchum laeve |
6 |
| Hooker's evening primrose |
Oenothera elata ssp. hookeri |
1 |
| horse purslane |
Trianthema portulacastrum |
1 |
| horseweed |
Conyza canadensis |
7 |
| Indian tobacco |
Nicotiana quadrivalvis |
1 |
| Indiantobacco |
Lobelia inflata |
1 |
| Italian plumeless thistle |
Carduus pycnocephalus |
1 |
| ivyleaf morningglory |
Ipomoea hederacea |
5 |
| Japanese knotweed |
Fallopia japonica |
24 |
| Jerusalem artichoke |
Helianthus tuberosus |
5 |
| Jerusalem-oak goosefoot |
Chenopodium botrys |
1 |
| jimsonweed |
Datura stramonium |
4 |
| Kerner's dock |
Rumex kerneri |
1 |
| Lamarck's bedstraw |
Galium divaricatum |
1 |
| lambsquarters |
Chenopodium album |
5 |
| lawn burweed |
Soliva sessilis |
1 |
| little mallow |
Malva parviflora |
1 |
| livid amaranth |
Amaranthus blitum |
4 |
| low amaranth |
Amaranthus deflexus |
1 |
| Malta starthistle |
Centaurea melitensis |
1 |
| manyflower tobacco |
Nicotiana acuminata var. multiflora |
1 |
| Mediterranean sage |
Salvia aethiopis |
1 |
| Mexican fireweed |
Kochia scoparia |
6 |
| Moroccan toadflax |
Linaria maroccana |
1 |
| moth mullein |
Verbascum blattaria |
2 |
| motherwort |
Leonurus cardiaca |
4 |
| musk mallow |
Malva moschata |
2 |
| musk thistle |
Carduus nutans |
3 |
| nightflowering catchfly |
Silene noctiflora |
1 |
| North African knapweed |
Centaurea diluta |
1 |
| oxeye daisy |
Leucanthemum vulgare |
6 |
| Pennsylvania smartweed |
Polygonum pensylvanicum |
4 |
| perennial pepperweed |
Lepidium latifolium |
2 |
| perennial sowthistle |
Sonchus arvensis |
3 |
| pineapple-weed |
Matricaria discoidea |
1 |
| poison-hemlock |
Conium maculatum |
11 |
| Powell amaranth |
Amaranthus powellii |
1 |
| prickly lettuce |
Lactuca serriola |
3 |
| prickly sida |
Sida spinosa |
2 |
| prostrate pigweed |
Amaranthus blitoides |
2 |
| purple deadnettle |
Lamium purpureum |
4 |
| purple loosestrife |
Lythrum salicaria |
4 |
| purple moonflower |
Ipomoea turbinata |
3 |
| purple toadflax |
Linaria purpurea |
1 |
| purplestamen mullein |
Verbascum virgatum |
1 |
| Queen Anne's lace, wild carrot |
Daucus carota |
2 |
| red sorrel |
Rumex acetosella |
8 |
| redmaids |
Calandrinia ciliata |
1 |
| redroot pigweed |
Amaranthus retroflexus |
8 |
| rough cinquefoil |
Potentilla norvegica |
1 |
| rush skeletonweed |
Chondrilla juncea |
1 |
| Russian knapweed |
Rhaponticum repens |
2 |
| Russian thistle |
Salsola kali |
1 |
| Russian-thistle |
Salsola tragus |
6 |
| saltbush |
Atriplex spp. |
3 |
| scarlet pimpernel |
Lysimachia arvensis |
1 |
| seashore vervain |
Verbena montevidensis |
1 |
| sericea lespedeza |
Lespedeza cuneata |
2 |
| sharpleaf groundcherry |
Physalis acutifolia |
1 |
| sharppoint fluvellin |
Kickxia elatine |
1 |
| shepherd's-purse |
Capsella bursa-pastoris |
6 |
| shortfruit stork's bill |
Erodium brachycarpum |
1 |
| showy evening-primrose |
Oenothera speciosa |
1 |
| sicklepod |
Senna obtusifolia |
2 |
| silversheath knotweed |
Polygonum argyrocoleon |
1 |
| small broomrape |
Orobanche minor |
3 |
| smallflower galinsoga |
Galinsoga parviflora |
1 |
| smallseed falseflax |
Camelina microcarpa |
1 |
| smooth bedstraw |
Galium mollugo |
2 |
| smooth groundcherry |
Physalis longifolia var. subglabrata |
2 |
| smooth hawksbeard |
Crepis capillaris |
1 |
| smooth pigweed |
Amaranthus hybridus |
3 |
| spiny plumeless thistle |
Carduus acanthoides |
1 |
| spinyfruit buttercup |
Ranunculus muricatus |
1 |
| spotted knapweed |
Centaurea stoebe |
1 |
| spotted knapweed |
Centaurea stoebe ssp. micranthos |
12 |
| spurred anoda |
Anoda cristata |
1 |
| squarrose knapweed |
Centaurea virgata |
1 |
| St. Andrew's cross |
Hypericum hypericoides |
1 |
| stinging nettle |
Urtica dioica ssp. holosericea |
1 |
| sulfur cinquefoil |
Potentilla recta |
1 |
| sulphur knapweed |
Centaurea sulphurea |
1 |
| swainsonpea |
Sphaerophysa salsula |
1 |
| swamp milkweed |
Asclepias incarnata |
6 |
| tall buttercup |
Ranunculus acris |
3 |
| tall morningglory |
Ipomoea purpurea |
2 |
| tall vervain |
Verbena bonariensis |
1 |
| tansy ragwort |
Senecio jacobaea |
1 |
| teasel |
Dipsacus spp. |
1 |
| tomatillo groundcherry |
Physalis philadelphica |
1 |
| toothed dock |
Rumex dentatus |
1 |
| toothed spurge |
Euphorbia dentata |
2 |
| toothpick ammi |
Ammi visnaga |
1 |
| true forget-me-not |
Myosotis scorpioides |
1 |
| tumble pigweed |
Amaranthus albus |
1 |
| velvetleaf |
Abutilon theophrasti |
7 |
| Venice mallow |
Hibiscus trionum |
2 |
| vinegarweed |
Trichostema lanceolatum |
1 |
| violet |
Viola spp. |
1 |
| wall bedstraw |
Galium parisiense |
1 |
| water knotweed |
Polygonum amphibium |
2 |
| water speedwell |
Veronica anagallis-aquatica |
1 |
| West Indian nightshade |
Solanum ptycanthum |
4 |
| white heath aster |
Symphyotrichum ericoides var. ericoides |
4 |
| white vervain |
Verbena urticifolia |
3 |
| whitestem filaree |
Erodium moschatum |
1 |
| wild buckwheat |
Fallopia convolvulus |
3 |
| wild carrot |
Daucus carota ssp. carota |
4 |
| wild celery |
Cyclospermum leptophyllum |
1 |
| wild chervil |
Anthriscus sylvestris |
1 |
| wild garlic |
Allium vineale |
1 |
| wild onion |
Allium canadense |
1 |
| wild parsnip |
Pastinaca sativa |
8 |
| woolly distaff thistle |
Carthamus lanatus |
1 |
| yellow chamomile |
Anthemis tinctoria |
1 |
| yellow glandweed |
Parentucellia viscosa |
1 |
| yellow hornpoppy |
Glaucium flavum |
1 |
| yellow starthistle |
Centaurea solstitialis |
2 |
| yellow toadflax |
Linaria vulgaris |
1 |
| yellow wall bedstraw |
Galium murale |
1 |
| yellow woodsorrel |
Oxalis stricta |
3 |
