| Canada thistle |
Cirsium arvense (L.) Scop. |
| Brazilian waterweed, Brazilian elodea |
Egeria densa Planch. |
| Russian olive |
Elaeagnus angustifolia L. |
| hydrilla |
Hydrilla verticillata (L. f.) Royle |
| purple loosestrife |
Lythrum salicaria L. |
| parrotfeather |
Myriophyllum aquaticum (Vell.) Verdc. |
| Eurasian watermilfoil |
Myriophyllum spicatum L. |
| common buckthorn, European buckthorn |
Rhamnus cathartica L. |
| tamarisk |
Tamarix L. |
| yellow toadflax |
Linaria vulgaris P. Mill. |
| field bindweed |
Convolvulus arvensis L. |
| Russian knapweed |
Rhaponticum repens (L.) Hidalgo |
| yellow starthistle |
Centaurea solstitialis L. |
| rush skeletonweed |
Chondrilla juncea L. |
| Scotch broom |
Cytisus scoparius (L.) Link |
| common St. Johnswort |
Hypericum perforatum L. |
| meadow hawkweed |
Hieracium caespitosum Dumort. |
| sulfur cinquefoil |
Potentilla recta L. |
| diffuse knapweed |
Centaurea diffusa Lam. |
| Dyer's woad |
Isatis tinctoria L. |
| hoary alyssum |
Berteroa incana (L.) DC |
| cheatgrass, downy brome |
Bromus tectorum L. |
| flowering rush |
Butomus umbellatus L. |
| hoary cress |
Lepidium draba (L.) Desv |
| houndstongue |
Cynoglossum officinale L. |
| common viper's bugloss, blueweed |
Echium vulgare 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. |
| curly leaf pondweed |
Potamogeton crispus L. |
| tall buttercup |
Ranunculus acris L. |
| medusahead |
Taeniatherum caput-medusae (L.) Nevski |
| common tansy |
Tanacetum vulgare L. |
| ventenata |
Ventenata dubia (Leers) Coss. & Durieu |
| yellow devil hawkweed |
Hieracium x floribundum Wimmer & Grab. [caespitosum x lactucella] |
| Japanese knotweed |
Reynoutria japonica Sieb. & Zucc. |
| giant knotweed |
Reynoutria sachalinensis F. Schmidt ex Maxim. |
| tall hawkweed |
Hieracium praealtum Vill. ex Gochnat |
| spotted knapweed |
Centaurea stoebe L. |
| European common reed, Phragmites |
Phragmites australis ssp. australis (Cavanilles) Trinius ex Steudel |
| Bohemian knotweed, Hybrid Japanese knotweed |
Reynoutria x bohemica Chrtek & Chrtková |
| Eurasian and northern watermilfoil hybrid |
Myriophyllum spicatum x sibiricum |
| tansy ragwort |
Jacobaea vulgaris Gaertn. |
| leafy spurge |
Euphorbia virgata Waldst. & Kit. |
| orange hawkweed |
Pilosella aurantiaca (L.) F. W. Schultz & Sch. Bip. |
| yellow hawkweed |
Pilosella caespitosa (Dumort.) P. D. Sell & C. West |
