Illinois Invasive Species

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Tree-of-heaven
Ailanthus altissima

Mimosa
Albizia julibrissin

Autumn olive
Elaeagnus umbellata

Glossy buckthorn
Frangula alnus

Japanese barberry
Berberis thunbergii

Amur honeysuckle
Lonicera maackii

Morrow's honeysuckle
Lonicera morrowii

Tartarian honeysuckle
Lonicera tatarica

Callery pear (Bradford pear)
Pyrus calleryana

Princesstree
Paulownia tomentosa

European buckthorn (common buckthorn)
Rhamnus cathartica

Black locust
Robinia pseudoacacia

Multiflora rose
Rosa multiflora Thunb.

winged burning bush
Euonymus alatus (Thunb.) Sieb.

Chinese privet
Ligustrum sinense Lour.

Japanese chaff flower
Achyranthes japonica

Garlic mustard
Alliaria petiolata

Musk thistle
Carduus nutans

Spotted knapweed
Centaurea stoebe ssp. micranthos

Canada thistle
Cirsium arvense

Bull thistle
Cirsium vulgare

Black swallow-wort
Cynanchum louiseae

Pale swallow-wort (European swallowwort)
Cynanchum rossicum

Common teasel
Dipsacus fullonum

Cut-leaved teasel
Dipsacus laciniatus

Leafy spurge
Euphorbia esula

Japanese knotweed
Fallopia japonica

Baby's Breath
Gypsophila scorzonerifolia

Giant Hogweed
Heracleum mantegazzianum

Bicolor lespedeza
Lespedeza bicolor

Sericea lespedeza
Lespedeza cuneata

Crownvetch
Securigera varia

Tall fescue
Festuca arundinacea

Giant manna grass
Glyceria grandis

Japanese stiltgrass
Microstegium vimineum

Reed canarygrass 

Phalaris arundinacea

Phragmites (common reed)
Phragmites australis

Johnsongrass
Sorghum halepense

Chocolate Vine (Akebia)
Akebia quinata

Oriental bittersweet
Celastrus orbiculatus

Chinese yam
Dioscorea polystachya

Japanese hop
Humulus japonicus

Japanese honeysuckle
Lonicera japonica

Kudzu
Pueraria montana var. lobata

winter creeper
Euonymus fortunei