Threatened and endangered Illinois forest species
There are 193 threatened and endangered Illinois species that depend on forest ecosystems
during some portion of their life cycle. The symbols E and T indicate whether the species is
endangered or threatened in the state.
Amphibians
There are three threatened or endangered forest amphibians in Illinois.
- Ambystoma platineum--Silvery salamander--E
- Desmognathus fuscus--Dusky salamander--E
- Hemidactylium scutatum--Four-toed salamander--T
Birds
There are 15 threatened or endangered forest birds in Illinois.
- Accipiter cooperii--Cooper's hawk--E
- Accipiter striatus--Sharp-shinned hawk--E
- Asio otus--Long-eared owl--E
- Botaurus lentiginosus--American bittern--E
- Buteo lineatus--Red-shouldered hawk--E
- Buteo swainsoni--Swainson's hawk--E
- Casmerodius albus--Great egret--T
- Catharus fuscescens--Veery--T
- Certhia americana--Brown creeper--T
- Egretta thula--Snowy egret--E
- Ictinia mississippiensis--Mississippi kite--E
- Limnothlypis swainsonii--Swainson's warbler--E
- Nycticorax nycticorax--Black-crowned night heron--E
- Nyctanassa violacea--Yellow crowned night heron--T
- Thryomanes bewickii--Bewick's wren--E
- Tyto alba--Common barn-owl--E
Mammals
There are 9 threatened or endangered forest mammals in Illinois.
- Lutra canadensis--River Otter--E
- Lynx rufus--Bobcat--T
- Myotis austroriparius--Southeastern myotis--E
- Myotis grisescens--Gray bat--E
- Myotis sodalis--Indiana bat--E
- Neotoma floridana--Eastern wood rat--E
- Ochrotomys nuttalli--Golden mouse--T
- Oryzomys palustris--Rice rat--T
Invertebrates
There is one endangered forest invertebrate: the Hoary elfin.
Insects
- Incisalia polios--Hoary elfin--E
Plants
There are 160 threatened or endangered forest plants in Illinois.
- Acalypha deamii--Large-seeded mercury--T
- Adoxa moschatellina--Moschatel--E
- Andropogon ternarius--Silver broom sedge--E
- Apios priceana--Price's groundnut, Price's potato-bean--E
- Aristolochia serpentaria hastata--Virginia snakeroot--T
- Asplenium bradleyi--Bradley's spleenwort--E
- Asplenium resiliens--Black spleenwort--E
- Aster furcatus--Forked aster--T
- Aster schreberi--Schreber's aster--T
- Aster undulatus--Wavy-leaved aster--T
- Astragalus crassicarpus trichocalyx--Large ground plum--E
- Berberis canadensis--Allegheny barberry--E
- Berchemia scandens--Supple-jack--E
- Botrychium multifidum--Northern grape-fern--E
- Botrychium simplex--Dwarf grape fern--E
- Bumelia lanuginosa--Wooly buckthorn--E
- Calamagrostis insperata--Bluejoint grass--T
- Carex arkansana--Sedge--E
- Carex baileyi--Sedge--E
- Carex brunnescens--Brownish sedge--E
- Carex communis--Fibrous-rooted sedge--E
- Carex decomposita--Cypress-knee sedge--E
- Carex echinata--Sedge--E
- Carex gigantea--Large sedge--E
- Carex intumescens--Swollen sedge--E
- Carex laxiculmis--Spreading sedge--T
- Carex lucorum--Sedge--E
- Carex nigromarginata--Black-edged sedge--E
- Carex oxylepis--Sharp-scaled sedge--E
- Carex pallescens--Pale sedge--E
- Carex physorhyncha--Bellow's beak sedge--E
- Carex prasina--Drooping sedge--E
- Carex reniformis--Reniform sedge--E
- Carex striatula--Lined sedge--E
- Carex styloflexa--Bent sedge--E
- Carex tuckermanii--Tuckerman's sedge--E
- Carex willdenow--Willdenow's sedge--E
- Carex woodii--Pretty sedge--E
- Carya pallida--Pale hickory--E
- Chimaphila maculata--Spotted wintergreen--E
- Chimaphila umbellata--Pipsissewa--E
- Cimicifuga americana--American bugbane--E
- Cimicifuga racemosa--False bugbane--E
- Cimicifuga rubifolia--Black cohosh--T
- Cladrastis lutea--Yellowwood--E
- Clematis crispa--Blue jasmine--E
- Clematis occidentalis--Mountain clematis--E
- Clematis viorna--Leatherflower--E
- Conioselinum chinense--Hemlock parsley--E
- Corallorhiza maculata--Spotted coral-root orchid--T
- Cornus canadensis--Bunchberry--E
- Corydalis halei--Hale's corydalis--E
- Corylus cornuta--Beaked hazelnut--E
- Cynosciadium digitatum--Finger dog-shade--E
- Cyperus lancasteriensis--Galingale--E
- Cypripedium acaule--Moccasin flower, Pink lady's slipper--E
- Cypripedium calceolus parviflorum--Small yellow lady's slipper--E
- Cypripedium reginae--Showy lady's slipper--E
- Dennstaedtia punctilobula--Hay-scented fern--T
- Dioclea multiflora--Boykin's dioclea--E
- Equisetum pratense--Meadow horsetail--E
- Equisetum sylvaticum--Horsetail--E
- Euonymus americanus--Strawberry bush--E
- Eupatorium incarnatum--Thoroughwort--E
- Gaultheria procumbens--Wintergreen--E
- Geranium bicknellii--Northern cranesbill--E
- Gymnocarpium dryopteris--Oak fern--E
- Gymnocarpium robertianum--Scented oak fern--E
- Gymnopogon ambiguus--Beard grass--E
- Hackelia americana--Stickseed--E
- Halesia carolina--Silverbell tree--E
- Hexalectris spicata--Crested coralroot orchid--E
- Iresine rhizomatosa--Bloodleaf--E
- Isotria medeoloides--Small whorled pogonia--E
- Isotria verticillata--Whorled pogonia--E
- Lactuca hirsuta--Wild Lettuce--E
- Laric laricina--Tamarack--T
- Lechea intermedia--Pinweed--E
- Lilium superbum--Turk's cap lily--E
- Lonicera dioica glaucescens--Red honeysuckle--E
- Lonicera flava--Yellow honeysuckle--E
- Luzula acuminata--Hairy woodrush--E
- Lycopodium clavatum--Running pine--E
- Lycopodium dendroideum--Ground pine--E
- Lysimachia radicans--Creeping loosestrife--E
- Malus angustifolia--Narrow-leaved crabapple--E
- Matelea decipiens--Climbing milkweed--E
- Matelea obliqua--Climbing milkweed--T
- Medeola virginiana--Indian cucumber root--E
- Melampyrum lineare--Cow wheat--E
- Melanthera nivea--White melanthera--E
- Melica mutica--Two-flowered melic grass--E
- Milium effusum--Millet grass--E
- Oryzopsis racemosa--Rice grass--T
- Oxalis illinoensis--Illinois wood sorrel--E
- Panicum columbianum--Hemlock panic grass--E
- Panicum longifolium--Long-leaved panic grass--E
- Panicum ravenelii--Ravenel's panic grass--E
- Panicum yadkinense--Panic grass--E
- Penstemon brevisepalus--Short-sepaled beard tongue--E
- Phaeophyscia leana--Lea's bog lichen--E
- Phlox pilosa sangamonensis--Sangamon phlox--E
- Pinus banksiana--Jack pine--E
- Pinus echinata--Shortleaf pine--E
- Plantago cordata--Heart-leaved plantain--E
- Platanthera clavellata--Wood orchid--E
- Platanthera flava flava --Tubercled orchid--E
- Platanthera psycodes--Purple-fringed orchid--E
- Poa alsodes--Grove bluegrass--E
- Poa languida--Weak bluegrass--E
- Poa wolfii-Wolf's bluegrass--E
- Polygonatum pubescens--Downy Solomon's seal--T
- Populus basamifera--Balsam poplar--E
- Ptilimnium costatum--Mock bishop's weed--E
- Pycnanthemum albescens--White mountain mint--E
- Pycnanthemum torrei--Mountain mint--E
- Quercus nuttallii--Nuttall's oak--E
- Quercus phellos--Willow oak--T
- Quercus prinus--Rock chestnut oak--T
- Ribes hirtellum--Northern gooseberry--E
- Rosa acicularis--Rose--E
- Rubus odoratus--Purple-flowering raspberry--E
- Rubus pubescens--Dwarf raspberry--T
- Rudbeckia missourensis--Missouri orange coneflower--E
- Sabatia campestris--Prairie rose gentian--E
- Sagittaria longirostra--Arrowhead--E
- Salvia azurea pitcheri--Blue sage--T
- Sambucus pubens--Red-berried elder--T
- Scirpus polyphyllus--Bulrush--T
- Scirpus verecundus--Bashful bulrush--E
- Silphium pinnatifidum--Rosinweed--E
- Silphium trifoliatum--Rosinweed--E
- Solidago arguta--Goldenrod--E
- Solidago sciaphila--Cliff goldenrod--T
- Sorbus americana--American mountain ash--E
- Spiranthes lucida--Yellow-lipped ladies' tresses--E
- Stellaria pubera--Great chickweed--E
- Stenanthium gramineum--Grass-leaved lily--E
- Stylisma pickeringii--Patterson bindweed--E
- Styrax americana--Storax--T
- Styrax grandifolia--Bigleaf snowbell bush--E
- Sullivantia renifolia--Sullivantia--T
- Synandra hispidula--Hairy synandra--E
- Thelypteris noveboracensis--New York fern--E
- Thelypteris phegopteris--Long beech fern--E
- Thuja occidentalis--Arbor vitae--T
- Tilia heterophylla--White basswood--E
- Trientalis borealis--Star-flower--T
- Trifolium reflexum--Buffalo clover--E
- Trillium cernuum--Nodding trillium--E
- Trillium viride--Green trillium--T
- Ulmus thomasii--Rock elm--E
- Urtica chamaedryoides--Nettle--T
- Veratrum woodii--False hellebore--T
- Viburnum molle--Arrowwood--E
- Viola canadensis--Canada violet--E
- Viola conspersa--Dog violet--T
- Viola incognita--Hairy white violet--E
- Waldsteinia fragarioides--Barren strawberry--E
Reptiles
There are 5 threatened or endangered forest reptiles in Illinois.
- Clonophis kirtlandi--Kirtland's snake--T
- Crotalus horridus--Timber rattlesnake--T
- Elaphe guttata emoryi--Great plains rat snake--T
- Masticophis flagellum--Coachwhip--T
- Sistrurus catenatus--Eastern massasauga--E
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