Tier 1 - Threat
 |
|
|---|---|
| Oplismenus hirtellus ssp. undulatifolus | Wavyleaf basketgrass |
| Ludwigia adscendens | Water primrose |
| Ludwigia hexapetala | Uruguayan primrose willow |
| Crassula helmsii | Swamp crop, Pygmyweed |
| Lycorma delicatula | Spotted Lanternfly |
| Bythotrephes longimanus | Spiny waterflea |
| Tamarix ssp. (T. chinensis, T. parviflora, T. ramossima) | Saltcedar, Tamarisk |
| Glyceria maxima | Reed manna grass |
| Ceratocystis fagacearum | Oak wilt (fungus) |
| Murdannia keisak | Marsh dewflower |
| Achyranthes japonica | Japanese Chaff Flower |
| Impatiens glandulifera | Himalayan balsam, Policeman's helmet, Ornamental jewelweed |
| Nandina domestica | Heavenly bamboo |
| Hydrocharis morsus-ranae | Frogbit |
| Pennisetum alopecuroides | Fountain grass, Chinese fountain grass |
| Ludwigia peploides | Floating primrose willow, creeping water primrose |
| Didymosphenia geminata | Didymo |
| Imperata cylindrica | Cogon grass |
| Myriophyllum heterophyllum | Broadleaf/variable-leaf watermilfoil |
| Lepidium latifolium | Broad-leaved pepper-grass |
| Vitex rotundifolia | Beach vitex, Roundleaf chastetree |
| Carex kobomugi | Asiatic sand sedge, Japanese sedge |
