Box elder Acer negundo Black Maple Acer nigrum Silver Maple Acer saccharinum Sugar maple Acer saccharumOhio Buckeye Aesculus glabra
Tree of Heaven Ailanthus altissima
Shadbush Amelanchier arborea Smooth Shadbush Amelanchier laevis
Pawpaw Asimina triloba
River Birch * Betula nigra
Blue Beech Carpinus caroliniana
Bitternut Hickory Carya cordiformis Pignut Hickory Carya glabra Kingnut Hickory Carya laciniosa Sweetnut Hickory Carya ovalis Shagbark Hickory Carya ovata Mocknut Hickory Carya tomentosa
Common Catalpa Catalpa bignonioides Catalpa Catalpa speciosa
Hackberry Celtis occidentalis
Redbud Cercis canadensis
Alternate-leaved Dogwood Cornus alternifolia Rough-leaved Dogwood Cornus drummondii Flowering Dogwood Cornus florida Gray Dogwood Cornus racemosa Stiff Dogwood Cornus foemina Round-leaved Dogwood Cornus rugosa Red Osier Cornus stolonifera Silky Dogwood Cornus obliqua Willow Dogwood Cornus amomum
Cock-spur Thorn Crataegus crus-gali Red Hawthorn Crataegus mollis Pruinose Hawthorn Crataegus pruinosa Scarlet Hawthorn Crataegus coccinioides Urn-shapped Hawthorn Crataegus calpodendron Green Hawthorn Crataegus punctata
Persimmon Diospyros virginiana
White Ash Fraximus americana Red Ash Fraximus pennsylvania Green Ash Fraximus pennsylvania subintegerrima Blue Ash Fraximus quadrangulata
Honey Locust Gleditsia triacanthos
Black Locust Robinia pseudoacacia
Kentucky Coffee Tree Gymnocladus dioicus
Witch Hazel Hamamelis virginiana
Butternut Juglans cinerea Black Walnut Juglans nigra
Red Cedar Juniperus virginiana
Sweet Gum * Liquidambar styraciflua
Tulip Tree * Liriodendrom tulipifere
Osage Orange Maclura pomifere
Prairie Crabapple Malus coronaria Iowa Crabapple Malus ioneses
White Mulbery Morus alba Red Mulberry Morus ruba
Hop Hornbeam Ostrya virginiana
Jack Pine * Pinus banksiana White Pine * Pinus strobus Red Pine * Pinus resinosa Scotch Pine * Pinus sylvestris
Sycamore Platanus occidentalis
White Poplar Populus alba Cottonwood Populus deltoides Big-tooth Aspen Populus grandidentata Quaking Aspen Populus tremuloides
Wild Plum Prunus americana Wild Goose Plum Purnus hortulana Black Cherry Prunus serotina Choke Cherry Prunus virginiana
Wafer Ash Prelea trifoliata
White Oak Quercus alba Swamp White Oak Quercus bicolor Shingle Oak Quercus imbricaria Burr Oak Quercus macrocarpa Yellow Chestnut Oak Quercus muehlenbergii Pin Oak Quercus palustric Northern Red Oak Quercus rubra Black Oak Quercus velutina
Smooth Sumac Rhus glabra Staghorn Sumac Rhus typhina
Peach-leaved Willow Salix amygdaloides Carolina Willow Salix caroliniana Sandbar Willow Salix interior Black Willow Salix nigra
Sassafras Sassafras albidum
Bald Cypress * Taxodium distichum
Basswood Tilia americana
American Elm Ulmus americana Slippery Elm Ulmus rubra
Sweet Viburnum Viburnum lentago Black Haw Viburnum prunifolium
Source: Robert Mohlenbrock, Forest Trees of Illinois, Third Edition. Illinois Department of Conservation, Division of Forestry, Springfield, IL.