Tier 4 - Widespread
| Acer platanoides | Norway Maple |
| Ailanthus altissima | Tree-of-heaven |
| Alliaria petiolata | Garlic mustard |
| Artemisia vulgaris | Mugwort |
| Berberis thunbergii | Japanese barberry |
| Berberis vulgaris | Common barberry, European barberry |
| Celastrus orbiculatus | Oriental Bittersweet |
| Centaurea jacea | Brown knapweed, Brown starthistle |
| Centaurea nigra | Black knapweed, Lesser knapweed |
| Centaurea stoebe | Spotted knapweed |
| Cirsium arvense | Canada thistle |
| Cirsium vulgare | Bull thistle |
| Dipsacus fullonum | Fuller's teasel, Wild teasel |
| Elaeagnus umbellata | Autumn Olive |
| Euonymus alatus | Burning-bush, Winged spindle-tree |
| Iris pseudacorus | Yellow Iris |
| Lonicera japonica | Japanese honeysuckle |
| Lonicera morrowii | Morrow's Honeysuckle |
| Lonicera x bella | Showy fly honeysuckle/Bell's honeysuckle |
| Lythrum salicaria | Purple loosestrife |
| Microstegium vimineum | Japanese stiltgrass |
| Morus alba | White mulberry |
| Myosotis scorpioides | True forget-me-not, Water forget-me-not |
| Myriophyllum spicatum | Eurasian Watermilfoil |
| Najas minor | Brittle naiad |
| Pastinaca sativa | Wild parsnip |
| Phalaris arundinacea | Reed canarygrass |
| Phragmites australis | Common reed grass |
| Potamogeton crispus | Curly-leaf pondweed |
| Prunus avium | Bird cherry |
| Reynoutria x bohemica (Fallopia x bohemica, Polygonum x bohemica) | Bohemian knotweed |
| Rhamnus cathartica | Common buckthorn |
| Robinia pseudoacacia | Black Locust |
| Rosa multiflora | Multiflora rose |
| Rubus phoenicolasius | Wineberry |
| Trapa natans | Water Chestnut |
