Scientists at the University of Connecticut together with principals at the Connecticut Department of Energy and Environmental Protection (DEEP) have identified numerous plant species that pose a threat to habitats, human health and economy. The list below is a partial inventory of non-native species that are considered to be an existing threat or potential threat.[1] [2] [3] [4]
| class=unsortable | Picture | Scientific Name | Common Name |
|---|---|---|---|
| Acer platanoides | Norway maple | ||
| Ailanthus altissima | tree of heaven | ||
| Alliaria petiolata | garlic mustard | ||
| Ampelopsis glandulosa | porcelain berry | ||
| Aralia elata | Japanese angelica tree | ||
| Berberis thunbergii | Japanese barberry | ||
| Celastrus orbiculatus | Oriental bittersweet | ||
| Centaurea maculosa | spotted knapweed | ||
| Cirsium arvense | Canada thistle | ||
| Egeria densa | large-flowered waterweed | ||
| Euonymus alatus | winged spindle, burning bush | ||
| Euphorbia esula | green spurge | ||
| Ligustrum vulgare | European privet | ||
| Lonicera maackii | Amur honeysuckle | ||
| Lythrum salicaria | purple loosestrife | ||
| Microstegium vimineum | Japanese stiltgrass | ||
| Miscanthus sinensis | maiden silvergrass | ||
| Ranunculus ficaria | lesser celandine | ||
| Reynoutria japonica | Asian knotweed | ||
| Rhodotypos scandens | jetbead | ||
| Rosa multiflora | multiflora rose | ||
| Rubus phoenicolasius | Japanese wineberry |