Section 1050.30 Endangered
Flora of Illinois
All federally designated
endangered or threatened animal species and subspecies have been automatically
listed as endangered or threatened under the Illinois Endangered Species
Protection Act and placed on the Illinois List by the Board and are protected
under the Act even though their names do not appear in this Section. Only those
federally designated endangered or threatened animal species and subspecies
known to occur in Illinois are designated as Illinois‑endangered or
Illinois-threatened by the Board and their names appear in this Section. Users
should refer to the US Fish and Wildlife Service website at https://www.fws.gov/program/endangered-species
for a complete listing of all federally designated endangered and threatened
species and subspecies.
SCIENTIFIC
NAME COMMON NAME
a) FERNS AND ALLIES
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Asplenium bradleyi
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Bradley's Spleenwort
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Asplenium resiliens
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Black Spleenwort
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Botrychium campestre
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Prairie Moonwort
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Botrychium matricariifolium
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Daisyleaf Grape Fern
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Botrychium simplex
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Dwarf Grape Fern
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Dendrolycopodium dendroideum
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Ground Pine
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Dendrolycopodium hickeyi
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Hickey's Groundpine
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Dennstaedtia punctilobula
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Hay-scented Fern
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Dryopteris celsa
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Log Fern
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Equisetum scirpoides
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Dwarf Scouring Rush
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Equisetum sylvaticum
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Woodland Horsetail
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Gymnocarpium dryopteris
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Oak Fern
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Isoetes butleri
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Butler's Quillwort
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Lycopodiella inundata
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Bog Clubmoss
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Lycopodium clavatum
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Running Pine
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Phegopteris connectilis
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Long Beech Fern
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Sceptridium biternatum
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Southern Grape Fern
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Sceptridium multifidum
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Northern Grape Fern
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Thelypteris noveboracensis
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New York Fern
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Vandenboschia boschiana
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Filmy Fern
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Woodsia ilvensis
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Rusty Woodsia
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b) GYMNOSPERMS
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Juniperus communis
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Ground Juniper
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Juniperus horizontalis
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Trailing Juniper
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Larix laricina
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Tamarack
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Pinus banksiana
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Jack Pine
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Pinus echinata
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Shortleaf Pine
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Pinus resinosa
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Red Pine
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c) ANGIOSPERMS – DICOTS
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Actaea podocarpa
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American Bugbane
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Actaea racemosa
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False Bugbane
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Actaea rubifolia
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Black Cohosh
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Adoxa moschatellina
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Moschatel
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Alnus incana subsp. rugosa
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Speckled Alder
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Amelanchier sanguinea
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Shadbush
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Amorpha nitens
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Smooth False Indigo
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Andromeda glaucophylla
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Bog Rosemary
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Arctostaphylos uva-ursi
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Bearberry
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Artemisia dracunculus
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Dragon Wormwood
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Asclepias lanuginosa
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Wooly Milkweed
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Asclepias meadii*
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Mead's Milkweed
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Asclepias ovalifolia
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Oval Milkweed
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Asclepias stenophylla
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Narrow-leaved Green Milkweed
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Astragalus crassicarpus var. trichocalyx
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Large Ground Plum
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Astragalus distortus
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Bent Milk Vetch
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Astragalus tennesseensis
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Tennessee Milk Vetch
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Baptisia tinctoria
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Yellow Wild Indigo
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Bartonia paniculata
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Screwstem
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Berchemia scandens
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Supple Jack
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Betula alleghaniensis
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Yellow Birch
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Bidens beckii
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Water Marigold
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Capnoides sempervirens
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Pink Corydalis
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Cardamine pratensis var. palustris
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Cuckoo Flower
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Carya aquatica
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Water Hickory
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Carya pallida
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Pale Hickory
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Castilleja sessiliflora
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Downy Yellow Painted Cup
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Ceanothus herbaceus
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Redroot
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Chimaphila maculata
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Spotted Wintergreen
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Chimaphila umbellata
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Pipsissewa
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Circaea alpina
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Small Enchanter's Nightshade
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Cirsium pitcheri*
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Pitcher's (Dune) Thistle
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Cladrastis kentukea
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Yellowwood
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Clematis crispa
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Blue Jasmine
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Clematis viorna
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Leatherflower
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Collinsia violacea
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Violet Collinsia
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Comptonia peregrina
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Sweetfern
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Conioselinum chinense
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Hemlock Parsley
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Cornus canadensis
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Bunchberry
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Corydalis aurea
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Golden Corydalis
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Corydalis halei
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Hale's Corydalis
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Corylus cornuta
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Beaked Hazelnut
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Cynosciadium digitatum
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Cynosciadium
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Dalea foliosa**
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Leafy Prairie Clover
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Delphinium carolinianum
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Hill Prairie Larkspur
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Draba cuneifolia
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Whitlow Grass
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Drosera rotundifolia
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Round-leaved Sundew
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Epilobium strictum
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Downy Willow Herb
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Eryngium prostratum
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Eryngo
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Erythranthe geyeri
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Yellow Monkey Flower
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Eupatorium hyssopifolium var. laciniatum
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Hyssop-leaved Thoroughwort
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Euphorbia spathulata
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Spurge
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Galium virgatum
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Dwarf Bedstraw
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Geranium bicknellii
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Northern Cranesbill
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Gratiola quartermaniae
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Hedge Hyssop
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Hackelia deflexa var. americana
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Stickseed
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Halesia carolina
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Silverbell Tree
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Helianthus angustifolius
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Narrow-leaved Sunflower
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Helianthus giganteus
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Tall Sunflower
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Heliotropium tenellum
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Slender Heliotrope
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Hudsonia tomentosa
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False Heather
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Hydrolea uniflora
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One-flowered Hydrolea
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Hymenopappus scabiosaeus
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Old Plainsman
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Hypericum adpressum
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Shore St. John's Wort
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Hypericum kalmianum
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Kalm's St. John's Wort
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Hypericum swinkianum
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Swink's St. John's Wort
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Iliamna remota
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Kankakee Mallow
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Iresine rhizomatosa
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Bloodleaf
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Juglans cinerea
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Butternut
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Justicia ovata
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Water Willow
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Lackeya multiflora
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Boykin's Dioclea
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Lechea intermedia
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Savanna Pinweed
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Lespedeza leptostachya*
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Prairie Bush Clover
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Lonicera dioica var. glaucescens
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Red Honeysuckle
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Lonicera flava
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Yellow Honeysuckle
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Ludwigia sphaerocarpa
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Round-fruited Loosestrife
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Lysimachia radicans
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Creeping Loosestrife
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Malus angustifolia
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Narrow-leaved Crabapple
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Malvastrum hispidum
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False Mallow
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Matelea decipiens
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Climbing Milkweed
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Melanthera nivea
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White Melanthera
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Mentzelia oligosperma
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Stickleaf
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Micranthes virginiensis
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Early Saxifrage
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Mimosa nuttallii
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Cat's Claw
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Mirabilis hirsuta
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Hairy Umbrella-wort
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Nemophila aphylla
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Baby Blue-Eyes
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Nothocalais cuspidata
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Prairie Dandelion
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Opuntia fragilis
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Fragile Prickly Pear
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Orobanche fasciculata
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Clustered Broomrape
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Penstemon grandiflorus
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Large-flowered Beard Tongue
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Penstemon tubaeflorus
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Tube Beard Tongue
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Persicaria careyi
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Carey's Heartsease
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Phacelia gilioides
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Ozark Phacelia
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Phemeranthus calycinus
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Fameflower
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Phlox pilosa subsp. sangamonensis
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Sangamon Phlox
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Physaria ludoviciana
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Silvery Bladderpod
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Plantago cordata
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Heart-leaved Plantain
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Polanisia jamesii
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James' Clammyweed
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Polygala incarnata
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Pink Milkwort
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Populus balsamifera
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Balsam Poplar
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Primula mistassinica
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Bird's-eye Primrose
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Ptilimnium nuttallii
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Mock Bishop's Weed
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Quercus texana
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Nuttall's Oak
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Ranunculus rhomboideus
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Prairie Buttercup
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Rhamnus alnifolia
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Alder Buckthorn
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Rhexia mariana
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Dull Meadow Beauty
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Ribes hirtellum
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Northern Gooseberry
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Rosa acicularis
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Bristly Rose
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Sabatia campestris
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Prairie Rose Gentian
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Salix cordata
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Dune Willow
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Salix serissima
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Autumn Willow
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Sambucus racemosa subsp. pubens
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Red-berried Elder
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Sanguisorba canadensis
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American Burnet
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Sanicula smallii
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Southern Black Snakeroot
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Sarracenia purpurea
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Pitcher Plant
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Shepherdia canadensis
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Buffaloberry
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Sideroxylon lanuginosum
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Wooly Buckthorn
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Silene ovata
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Ovate Catchfly
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Silene regia
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Royal Catchfly
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Sorbus americana
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American Mountain Ash
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Stellaria pubera
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Great Chickweed
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Stylisma pickeringii var. pattersonii
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Patterson's Bindweed
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Styrax grandifolius
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Bigleaf Snowbell Bush
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Symphoricarpos albus var. albus
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Snowberry
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Tetraneuris herbacea*
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Lakeside Daisy
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Tilia americana var. heterophylla
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White Basswood
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Tracaulon arifolium
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Halberd-leaved Tearthumb
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Trientalis borealis
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Star-flower
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Ulmus thomasii
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Rock Elm
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Utricularia cornuta
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Horned Bladderwort
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Utricularia minor
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Small Bladderwort
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Utricularia subulata
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Hair Bladderwort
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Vaccinium corymbosum
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Highbush Blueberry
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Vaccinium macrocarpon
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Large Cranberry
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Vaccinium oxycoccos
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Small Cranberry
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Vaccinium stamineum
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Deerberry
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Valeriana uliginosa
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Marsh Valerian
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Valerianella umbilicata
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Corn Salad
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Veronica americana
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American Brooklime
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Vicia caroliniana
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Wood Vetch
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Viola blanda
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Hairy White Violet
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Viola canadensis
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Canada Violet
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Viola primulifolia
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Primrose Violet
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Viola rugulosa
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Western Tall White Violet
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Viola viarum
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Limestone Riverbank Violet
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d) ANGIOSPERMS – MONOCOTS
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Avenella flexuosa
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Hairgrass
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Beckmannia syzigachne
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American Slough Grass
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Bouteloua gracilis
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Blue Grama
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Calamagrostis porteri subsp. insperata
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Hollow Reed Grass
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Calla palustris
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Water Arum
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Calopogon oklahomensis
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Oklahoma Grass Pink Orchid
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Calopogon tuberosus
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Grass Pink Orchid
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Camassia angusta
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Wild Hyacinth
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Carex alata
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Winged Sedge
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Carex albicans var. australis
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Bellow's Beak Sedge
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Carex albolutescens
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Greenish-white Oval Sedge
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Carex arkansana
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Arkansas Sedge
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Carex brunnescens
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Brownish Sedge
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Carex canescens
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Silvery Sedge
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Carex chordorrhiza
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Cordroot Sedge
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Carex crawfordii
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Crawford's Sedge
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Carex cumulata
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Sedge
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Carex debilis
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White-edge Sedge
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Carex decomposita
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Cypress-knee Sedge
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Carex diandra
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Sedge
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Carex disperma
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Shortleaf Sedge
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Carex echinata
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Sedge
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Carex formosa
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Sedge
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Carex garberi
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Elk Sedge
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Carex gigantea
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Large Sedge
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Carex inops subsp. heliophila
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Plains Sedge
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Carex limosa
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Mud Sedge
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Carex nigromarginata
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Black-edged Sedge
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Carex oligosperma
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Few-seeded Sedge
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Carex opaca
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Opaque Oval Sedge
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Carex pallescens
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Pale Sedge
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Carex plantaginea
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Plantain-leaved Sedge
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Carex reniformis
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Reniform Sedge
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Carex straminea
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Eastern Straw Sedge
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Carex trisperma
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Three-seeded Sedge
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Carex tuckermanii
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Tuckerman's Sedge
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Chamaelirium luteum
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Fairy Wand
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Corallorhiza maculata
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Spotted Coral-root Orchid
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Cypripedium acaule
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Moccasin Flower
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Cypripedium parviflorum var. makasin
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Small Yellow Lady's Slipper
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Cypripedium reginae
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Showy Lady's Slipper
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Dichanthelium boreale
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Northern Panic Grass
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Dichanthelium joorii
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Panic Grass
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Dichanthelium portoricense
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Hemlock Panic Grass
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Dichanthelium ravenelii
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Ravenel's Panic Grass
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Dichanthelium yadkinense
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Panic Grass
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Echinodorus tenellus
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Small Burhead
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Eleocharis olivacea
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Capitate Spikerush
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Eleocharis quinqueflora
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Few-flowered Spikerush
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Elymus trachycaulus
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Bearded Wheat Grass
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Eriophorum gracile
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Slender Cotton Sedge
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Eriophorum virginicum
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Rusty Cotton Grass
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Fimbristylis vahlii
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Vahl's Fimbry
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Glyceria arkansana
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Arkansas Manna Grass
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Heteranthera reniformis
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Mud Plantain
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Hexalectris spicata
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Crested Coralroot Orchid
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Isotria medeoloides*
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Small Whorled Pogonia
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Isotria verticillata
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Whorled Pogonia
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Juncus vaseyi
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Vasey's Rush
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Luzula acuminata
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Hairy Woodrush
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Medeola virginiana
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Indian Cucumber Root
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Melanthium virginicum
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Virginia Bunchflower
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Melica mutica
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Two-Flowered Melic Grass
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Platanthera ciliaris
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Orange Fringed Orchid
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Platanthera clavellata
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Wood Orchid
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Platanthera leucophaea*
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Eastern Prairie Fringed Orchid
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Platanthera psycodes
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Purple Fringed Orchid
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Poa alsodes
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Grove Bluegrass
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Poa saltuensis subsp. languida
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Weak Bluegrass
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Poa wolfii
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Wolf's Bluegrass
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Pogonia ophioglossoides
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Snake-mouth
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Polygonatum pubescens
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Downy Solomon's Seal
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Potamogeton praelongus
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White-stemmed Pondweed
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Potamogeton pulcher
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Spotted Pondweed
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Potamogeton robbinsii
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Fern Pondweed
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Potamogeton strictifolius
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Stiff Pondweed
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Rhynchospora alba
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Beaked Rush
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Rhynchospora glomerata
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Clustered Beak Rush
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Sagittaria australis
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Arrowhead
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Schizachne purpurascens
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False Melic Grass
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Schoenoplectiella purshiana
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Pursh's Bulrush
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Schoenoplectiella smithii
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Smith's Bulrush
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Scirpus hattorianus
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Bulrush
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Scirpus microcarpus
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Small-fruited Bulrush
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Scirpus polyphyllus
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Leafy Bulrush
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Scleria muhlenbergii
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Muhlenberg's Nut Rush
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Scleria oligantha
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Littlehead Nutrush
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Scleria pauciflora
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Carolina Whipgrass
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Sisyrinchium atlanticum
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Eastern Blue-eyed Grass
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Sisyrinchium montanum
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Mountain Blue-eyed Grass
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Sparganium americanum
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American Bur-reed
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Sparganium emersum
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Green-fruited Bur-reed
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Spiranthes lucida
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Yellow-lipped Ladies' Tresses
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Spiranthes vernalis
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Spring Ladies' Tresses
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Torreyochloa pallida
|
Pole Manna-Grass
|
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Tradescantia bracteata
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Prairie Spiderwort
|
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Trichophorum cespitosum
|
Tufted Bulrush
|
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Trillium cernuum
|
Nodding Trillium
|
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Trillium erectum
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Ill-scented Trillium
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Trillium viride
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Green Trillium
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Zigadenus elegans
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White Camass
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* Federally designated threatened species
** Federally designated endangered species
(Source: Amended at 49 Ill.
Reg. 14774, effective October 30, 2025)