Invasive Plants

Level 1
Acer platanoides Norway maple
Ailanthus altissima ailanthus, tree of heaven
Alliaria petiolata garlic mustard
Artemisia vulgaris mugwort
Berberis thunbergii Japanese Barberry
Celastrus orbiculata Asian bittersweet
Cirsium arvense creeping thistle, Canada thistle
Coronilla varia crownvetch
Cynanchum rossicum pale swallowwort
Elaeagnus umbellata autumn olive
Fallopia bohemica giant knotweed, bohemian knotweed
Fallopia japonica Japanese knotweed
Hydrilla verticillata hydrilla
Ligustrum obtusifolium Amur River privet
Lonicera maackii Maack's honeysuckle, bush honeysuckle
Lonicera morrowii honeysuckle
Lonicera tatarica Tartarian honeysuckle, bush honeysuckle
Microstegium vimineum stilt-grass
Persicaria perfoliata mile-a-minute vine
Phragmites australis (introduced haplotype) phragmites
Ranunculus ficaria lesser celandine
Rhamnus cathartica buckthorn
Rhamnus frangula alder buckthorn
Rosa multiflora multiflora rose
Trapa natans water-chestnut
Level 2
Acer campestre hedge maple
Acer ginnala Asian maple, Amur maple
Aegopodium podagraria bishops weed, goutweed
Allium vineale wild onion, onion grass
Alnus glutinosa European black alder
Berberis vulgaris European barberry
Cabomba caroliniana fanwort
Cardamine hirsuta hairy cress
Centaurea jacea brown knapweed
Centaurea maculosa spotted knapweed
Centaurea stoebe ssp. micranthos Spotted Knapweed
Chelidonium majus Greater Celandine
Cynanchum louiseae black swallowwort
Euonymus alata burning bush, winged euonymus
Euphorbia esula leafy spurge
Fallopia sachlinensis Sakhalin knotweed
Galium mollugo white bedstraw
Hedera helix English ivy
Hemerocallis fulva daylily, tawny daylily
Heracleum mantegazzianum giant hogweed
Hydrocharis morsus-ranae frog-bit
Ligustrum ovalifolium California privet
Ligustrum vulgare common privet
Lonicera japonica Japanese honeysuckle
Lysimachia nummularia moneywort, creeping jenny
Lythrum salicaria purple loosestrife
Myosotis scorpioides forget-me-not
Myriophyllum spicatum Eurasian water-milfoil
Phalaris arundinacea reed canary grass
Potamogeton crispus curly pondweed
Robinia pseudo-acacia black locust
Rubus caesius European dewberry
Solanum dulcamara bittersweet nightshade
Torilis japonica Japanese hedge parsley
Viburnum opulus ssp. opulus European cranberry viburnum
Vinca minor periwinkle
Level 3
Hesperis matronalis dame's rocket
Level 4 - newly introduced or troublesome but not on Wesley list yet
Brachypodium sylvaticum ssp. sylvaticum slender false brome