| air-potato |
Dioscorea bulbifera |
4 |
| alligatorweed |
Alternanthera philoxeroides |
1 |
| Asiatic dayflower |
Commelina communis |
2 |
| Benghal dayflower |
Commelina benghalensis |
2 |
| Black dog-strangling vine, black swallowwort |
Cynanchum louiseae |
2 |
| blackseed plantain |
Plantago rugelii |
2 |
| British yellowhead |
Inula britannica |
1 |
| broadleaf dock |
Rumex obtusifolius |
1 |
| broadleaf plantain |
Plantago major |
1 |
| bull thistle |
Cirsium vulgare |
4 |
| bur chervil |
Anthriscus caucalis |
1 |
| burcucumber |
Sicyos angulatus |
1 |
| buttercup oxalis |
Oxalis pes-caprae |
1 |
| Canada thistle |
Cirsium arvense |
2 |
| chamber bitter |
Phyllanthus urinaria |
1 |
| chicory |
Cichorium intybus |
1 |
| Chinese yam |
Dioscorea polystachya |
1 |
| coltsfoot |
Tussilago farfara |
1 |
| common burdock |
Arctium minus |
4 |
| common cocklebur |
Xanthium strumarium |
1 |
| common milkweed |
Asclepias syriaca |
1 |
| common mullein |
Verbascum thapsus |
1 |
| common pokeweed |
Phytolacca americana |
1 |
| common St. Johnswort |
Hypericum perforatum |
2 |
| common teasel |
Dipsacus fullonum |
3 |
| corn chamomile |
Anthemis arvensis |
1 |
| crystalline iceplant |
Mesembryanthemum crystallinum |
1 |
| curlyleaf pondweed |
Potamogeton crispus |
3 |
| cutleaf geranium |
Geranium dissectum |
1 |
| Dalmatian toadflax |
Linaria dalmatica |
2 |
| dandelion |
Taraxacum spp. |
1 |
| diffuse knapweed |
Centaurea diffusa |
1 |
| dog-strangling vine, European swallowwort |
Cynanchum rossicum |
1 |
| fennel |
Foeniculum vulgare |
1 |
| field bindweed |
Convolvulus arvensis |
1 |
| field horsetail |
Equisetum arvense |
1 |
| field marigold |
Calendula arvensis |
1 |
| Fuller's teasel |
Dipsacus sativus |
1 |
| garlic mustard |
Alliaria petiolata |
1 |
| giant hogweed |
Heracleum mantegazzianum |
3 |
| giant reed |
Arundo donax |
3 |
| giant salvinia |
Salvinia molesta |
1 |
| greater celandine |
Chelidonium majus |
1 |
| ground ivy |
Glechoma hederacea |
2 |
| hairy fleabane |
Conyza bonariensis |
1 |
| hedgeparsley |
Torilis arvensis |
1 |
| horsenettle |
Solanum carolinense |
1 |
| horseweed |
Conyza canadensis |
1 |
| Italian hawksbeard |
Crepis bursifolia |
1 |
| Japanese dodder |
Cuscuta japonica |
1 |
| Jerusalem artichoke |
Helianthus tuberosus |
2 |
| lesser celandine, fig buttercup |
Ficaria verna |
1 |
| little mallow |
Malva parviflora |
1 |
| Malta starthistle |
Centaurea melitensis |
1 |
| musk thistle |
Carduus nutans |
2 |
| narrow swordfern |
Nephrolepis cordifolia |
1 |
| narrowleaf bittercress |
Cardamine impatiens |
1 |
| ornamental jewelweed |
Impatiens glandulifera |
3 |
| oxeye daisy |
Leucanthemum vulgare |
1 |
| Pacific poison-oak |
Toxicodendron diversilobum |
1 |
| perennial sowthistle |
Sonchus arvensis |
2 |
| perilla mint |
Perilla frutescens |
2 |
| poison-hemlock |
Conium maculatum |
1 |
| prickly lettuce |
Lactuca serriola |
3 |
| prostrate pigweed |
Amaranthus blitoides |
1 |
| purple starthistle |
Centaurea calcitrapa |
1 |
| red sorrel |
Rumex acetosella |
1 |
| rush skeletonweed |
Chondrilla juncea |
1 |
| Russian knapweed |
Rhaponticum repens |
1 |
| Russian-thistle |
Salsola tragus |
2 |
| Scotch thistle |
Onopordum acanthium |
1 |
| shepherd's-purse |
Capsella bursa-pastoris |
1 |
| shrubby lespedeza |
Lespedeza bicolor |
1 |
| small broomrape |
Orobanche minor |
1 |
| spiny amaranth |
Amaranthus spinosus |
1 |
| spotted joe pye weed |
Eupatoriadelphus maculatus |
1 |
| spotted knapweed |
Centaurea stoebe ssp. micranthos |
3 |
| spotted water hemlock |
Cicuta maculata var. angustifolia |
1 |
| Sprenger's asparagus fern |
Asparagus aethiopicus |
1 |
| squarrose knapweed |
Centaurea virgata |
1 |
| sulphur knapweed |
Centaurea sulphurea |
1 |
| tawny daylily |
Hemerocallis fulva |
1 |
| turkeyberry |
Solanum torvum |
1 |
| water knotweed |
Polygonum amphibium |
5 |
| white vervain |
Verbena urticifolia |
1 |
| wild celery |
Cyclospermum leptophyllum |
1 |
| wild garlic |
Allium vineale |
4 |
| wild onion |
Allium canadense |
1 |
| wild parsnip |
Pastinaca sativa |
1 |
| winged yam |
Dioscorea alata |
2 |
| yellow starthistle |
Centaurea solstitialis |
1 |
