| giant salvinia |
Salvinia molesta D. S. Mitchell |
| Canada thistle |
Cirsium arvense (L.) Scop. |
| musk thistle, nodding thistle |
Carduus nutans L. |
| Brazilian waterweed, Brazilian elodea |
Egeria densa Planch. |
| hydrilla |
Hydrilla verticillata (L. f.) Royle |
| purple loosestrife |
Lythrum salicaria L. |
| parrotfeather |
Myriophyllum aquaticum (Vell.) Verdc. |
| Eurasian watermilfoil |
Myriophyllum spicatum L. |
| common reed |
Phragmites australis (Cavanilles) Trinius ex Steudel |
| johnsongrass |
Sorghum halepense (L.) Pers. |
| tamarisk |
Tamarix L. |
| spiny plumeless thistle, plumeless thistle |
Carduus acanthoides L. |
| European water chestnut |
Trapa natans L. |
| yellow toadflax |
Linaria vulgaris P. Mill. |
| puncturevine |
Tribulus terrestris L. |
| field bindweed |
Convolvulus arvensis L. |
| Mediterranean sage |
Salvia aethiopis L. |
| poison hemlock |
Conium maculatum L. |
| squarrose knapweed |
Centaurea virgata Lam. |
| Russian knapweed |
Rhaponticum repens (L.) Hidalgo |
| yellow starthistle |
Centaurea solstitialis L. |
| rush skeletonweed |
Chondrilla juncea L. |
| Scotch broom |
Cytisus scoparius (L.) Link |
| common crupina |
Crupina vulgaris Cass. |
| meadow hawkweed |
Hieracium caespitosum Dumort. |
| Scotch thistle |
Onopordum acanthium L. |
| diffuse knapweed |
Centaurea diffusa Lam. |
| giant hogweed |
Heracleum mantegazzianum Sommier & Levier |
| Dyer's woad |
Isatis tinctoria L. |
| feathered mosquito-fern |
Azolla pinnata R. Brown |
| small bugloss |
Anchusa arvensis (L.) Bieb |
| hoary alyssum |
Berteroa incana (L.) DC |
| white bryony |
Bryonia alba L. |
| flowering rush |
Butomus umbellatus L. |
| Carolina fanwort, fanwort |
Cabomba caroliniana A. Gray |
| hoary cress |
Lepidium draba (L.) Desv |
| houndstongue |
Cynoglossum officinale L. |
| common viper's bugloss, blueweed |
Echium vulgare L. |
| black henbane |
Hyoscyamus niger L. |
| pale yellow iris, yellow flag iris |
Iris pseudacorus L. |
| perennial pepperweed |
Lepidium latifolium L. |
| oxeye daisy |
Leucanthemum vulgare Lam. |
| Dalmatian toadflax |
Linaria dalmatica (L.) P. Mill. |
| spring millet |
Milium vernale Bieb. |
| matgrass |
Nardus stricta L. |
| curly leaf pondweed |
Potamogeton crispus L. |
| perennial sowthistle |
Sonchus arvensis L. |
| buffalobur |
Solanum rostratum Dunal |
| Syrian beancaper |
Zygophyllum fabago L. |
| kingdevil hawkweed |
Hieracium piloselloides Vill. |
| European frog-bit |
Hydrocharis morsus-ranae L. |
| Himalayan balsam |
Impatiens glandulifera Royle |
| twoleaf watermilfoil |
Myriophyllum heterophyllum Michx. |
| yellow floating heart |
Nymphoides peltata (S.G. Gmel.) Kuntze |
| Japanese knotweed |
Reynoutria japonica Sieb. & Zucc. |
| giant knotweed |
Reynoutria sachalinensis F. Schmidt ex Maxim. |
| Bohemian knotweed, Hybrid Japanese knotweed |
Reynoutria x bohemica Chrtek & Chrtková |
| tansy ragwort |
Jacobaea vulgaris Gaertn. |
| leafy spurge |
Euphorbia virgata Waldst. & Kit. |
| orange hawkweed |
Pilosella aurantiaca (L.) F. W. Schultz & Sch. Bip. |
| common water hyacinth |
Pontederia crassipes Martius |
| queen-devil hawkweed |
Pilosella glomerata (Froel.) Arv.-Touv. |
