Tree Species
Black locust (Robinia pseudoacacia)
Chinaberry (Melia azedarach)
Norway maple (Acer platanoides)
Princesstree (Paulownia tomentosa)
Punktree (Melaleuca quinquenervia)
Russian olive (Elaeagnus angustifolia)
Saltcedar (Tamarix ramosissima)
Siberian elm (Ulmus pumila)
Silktree (Albizia julibrissin)
Tallow tree (Triadica sebifera)
Tree of heaven (Ailanthus altissima)
Woody Species
Autumn olive (Elaeagnus umbellata)
Common barberry (Berberis vulgaris)
Common buckthorn (Rhamnus cathartica)
European cranberrybush (Viburnum opulus)
European privet (Ligustrum vulgare)
Glossy buckthorn (Frangula alnus)
Japanese barberry (Berberis thunbergii)
Japanese meadowsweet (Spiraea japonica)
Multiflora rose (Rosa multiflora)
Nonnative bush honeysuckle (Lonicera spp.)
Vine Species
English ivy (Hedera helix)
Japanese honeysuckle (Lonicera japonica)
Oriental bittersweet (Celastrus orbiculatus)
Herbaceous Species
Black swallow-wort (Cynanchum louiseae)
Bohemian knotweed (Polygonum xbohemicum)
Bull thistle (Cirsium vulgare)
Canada thistle (Cirsium arvense)
Creeping jenny (Lysimachia nummularia)
Dames rocket (Hesperis matronalis)
European swallow-wort (Cynanchum rossicum)
Garlic mustard (Alliaria petiolata)
Giant knotweed (Polygonum sachalinense)
Japanese knotweed (Polygonum cuspidatum)
Leafy spurge (Euphorbia esula)
Purple loosestrife (Lythrum salicaria)
Spotted knapweed (Centaurea stoebe ssp. micranthos)
Grass Species
Common reed (Phragmites australis)
Japanese stiltgrass, Nepalese browntop (Microstegium vimineum)
Reed canarygrass (Phalaris arundinacea)
Table 4.— Invasive species monitored on FIA plots