Invasive Species of Concern

Illinois has many invasive species. The following is not a comprehensive list of all invasive species in Illinois, instead it provides examples of each category of invasive species. Use the links below to view pictures and learn more about this species. Learning to identify invasive species is a critical part of raising awareness

Plants

Shrubs and Trees


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

Black locust
Robinia pseudoacacia

Multiflora rose
Rosa multiflora Thunb.

winged burning bush
Euonymus alatus (Thunb.) Sieb.

Chinese privet
Ligustrum sinense Lour.


Forbs


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

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


Grasses


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



Vines


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


Aquatic


Flowering rush
Butomus umbellatus

Hydrilla
Hydrilla verticillata

Purple loosestrife
Lythrum salicaria

Eurasian watermilfoil
Myriophyllum spicatum

Curlyleaf pondweed
Potamogeton crispus

Narrowleaf cattail
Typha angustifolia








Hybrid cattail
Typha xglauca



Animals









Spiny water flea
Bythotrephes cederstroemi

Zebra mussel
Dreissena polymorpha








Asian carp (silver carp)
Hypophthalmichthys molitrix








Chestnut lamprey
Ichthyomyzon castaneus

Round goby
Neogobius melanostomus

Eurasian collared dove
Streptopelia decaocto

Wild boar

Sus scrofa

Asian carp (bighead carp)
Hypophthalmichthys nobilis


Insects


Emerald ash borer
Agrilus planipennis

soybean aphid
Aphis glycines Matsumura

Asian longhorned beetle
Anoplophora glabripennis

Gypsy moth

Lymantria dispar


Diseases


Dogwood anthracnose
Discula destructiva