Illinois Administrative Code
Title 17 - CONSERVATION
Part 1050 - ILLINOIS LIST OF ENDANGERED AND THREATENED FLORA
Section 1050.30 - Endangered Flora of Illinois

Current through Register Vol. 48, No. 12, March 22, 2024

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 http://www.fws.gov/endangered/ for a complete listing of all federally designated endangered and threatened species and subspecies.

SCIENTIFIC NAME

COMMON NAME

EQUISETACEAE

Equisetum scirpoides

Dwarf Scouring Rush

Equisetum sylvaticum

Woodland Horsetail

HYMENOPHYLLACEAE

Vandenboschia boschiana

Filmy fern

ISOETACEAE

Isoetes butleri

Butler's Quillwort

LYCOPODIACEAE

Dendrolycopodium dendroideum

Ground Pine

Dendrolycopodium hickeyi

Hickey's Groundpine

Lycopodium clavatum

Running Pine

Lycopodiella inundata

Bog Clubmoss

OPHIOGLOSSACEAE

Botrychium campestre

Prairie Moonwort

Botrychium matricariifolium

Daisyleaf Grape Fern

Botrychium multifidum

Northern Grape Fern

Botrychium simplex

Dwarf Grape Fern

Sceptridium biternatum

Southern Grape Fern

POLYPODIACEAE

Asplenium bradleyi

Bradley's Spleenwort

Asplenium resiliens

Black Spleenwort

Cystopteris laurentiana

Laurentian Fragile Fern

Dennstaedtia punctilobula

Hay-scented Fern

Dryopteris celsa

Log Fern

Gymnocarpium dryopteris

Oak Fern

Gymnocarpium robertianum

Scented Oak Fern

Phegopteris connectilis

Long Beech Fern

Thelypteris noveboracensis

New York Fern

Woodsia ilvensis

Rusty Woodsia

CUPRESSACEAE

Juniperus horizontalis

Trailing Juniper

PINACEAE

Larix laricina

Tamarack

Pinus banksiana

Jack Pine

Pinus echinata

Shortleaf Pine

Pinus resinosa

Red Pine

ALISMATACEAE

Echinodorus tenellus

Small Burhead

Sagittaria australis

Arrowhead

ARACEAE

Calla palustris

Water Arum

COMMELINACEAE

Tradescantia bracteata

Prairie Spiderwort

CYPERACEAE

Carex alata

Winged Sedge

Carex arkansana

Arkansas Sedge

Carex brunnescens

Brownish Sedge

Carex canescens

Silvery Sedge

Carex chordorrhiza

Cordroot Sedge

Carex crawfordii

Crawford's Sedge

Carex cumulata

Sedge

Carex debilis

White-edge Sedge

Carex decomposita

Cypress-knee Sedge

Carex diandra

Sedge

Carex disperma

Shortleaf Sedge

Carex echinata

Sedge

Carex formosa

Sedge

Carex garberi

Elk Sedge

Carex gigantea

Large Sedge

Carex heliophila

Plains Sedge

Carex intumescens

Swollen Sedge

Carex nigromarginata

Black-edged Sedge

Carex oligosperma

Few-seeded Sedge

Carex opaca

Opaque Oval Sedge

Carex physorhyncha

Bellow's Beak Sedge

Carex plantaginea

Plantain-leaved Sedge

Carex reniformis

Reniform Sedge

Carex straminea

Eastern Straw Sedge

Carex trisperma

Three-seeded Sedge

Carex tuckermanii

Tuckerman's Sedge

Eleocharis olivacea

Capitate Spikerush

Eleocharis pauciflora

Few-flowered Spikerush

Eriophorum virginicum

Rusty Cotton Grass

Fimbristylis vahlii

Vahl's Fimbry

Rhynchospora alba

Beaked Rush

Rhynchospora glomerata

Clustered Beak Rush

Schoenoplectus purshianus

Pursh's Bulrush

Schoenoplectus smithii

Smith's Bulrush

Scirpus hattorianus

Bulrush

Scirpus microcarpus

Small-fruited Bulrush

Scirpus polyphyllus

Leafy Bulrush

Scleria muhlenbergii

Muhlenberg's Nut Rush

Scleria pauciflora

Carolina Whipgrass

Trichophorum cespitosum

Tufted Bulrush

IRIDACEAE

Sisyrinchium atlanticum

Eastern Blue-eyed Grass

Sisyrinchium montanum

Mountain Blue-eyed Grass

JUNCACEAE

Juncus vaseyi

Vasey's Rush

Luzula acuminata

Hairy Woodrush

LILIACEAE

Camassia angusta

Wild Hyacinth

Chamaelirium luteum

Fairy Wand

Medeola virginiana

Indian Cucumber Root

Melanthium virginicum

Virginia Bunchflower

Polygonatum pubescens

Downy Solomon's Seal

Trillium cernuum

Nodding Trillium

Trillium erectum

Ill-scented Trillium

Trillium viride

Green Trillium

Zigadenus elegans

White Camass

ORCHIDACEAE

Calopogon oklahomensis

Oklahoma Grass Pink Orchid

Calopogon tuberosus

Grass Pink Orchid

Corallorhiza maculata

Spotted Coral-root Orchid

Cypripedium acaule

Moccasin Flower

Cypripedium parviflorum

Small Yellow Lady's Slipper

Cypripedium reginae

Showy Lady's Slipper

Hexalectris spicata

Crested Coralroot Orchid

Isotria medeoloides*

Small Whorled Pogonia

Isotria verticillata

Whorled Pogonia

Platanthera ciliaris

Orange Fringed Orchid

Platanthera clavellata

Wood Orchid

Platanthera leucophaea*

Eastern Prairie Fringed Orchid

Platanthera psycodes

Purple Fringed Orchid

Pogonia ophioglossoides

Snake-mouth

Spiranthes lucida

Yellow-lipped Ladies' Tresses

Spiranthes vernalis

Spring Ladies' Tresses

POACEAE

Avenella flexuosa

Hairgrass

Beckmannia syzigachne

American Slough Grass

Bouteloua gracilis

Blue Grama

Calamagrostis insperata

Hollow Reed Grass

Dichanthelium boreale

Northern Panic Grass

Dichanthelium joorii

Panic Grass

Dichanthelium portoricense

Hemlock Panic Grass

Dichanthelium ravenelii

Ravenel's Panic Grass

Dichanthelium yadkinense

Panic Grass

Elymus trachycaulus

Bearded Wheat Grass

Glyceria arkansana

Arkansas Manna Grass

Melica mutica

Two-Flowered Melic Grass

Poa alsodes

Grove Bluegrass

Poa languida

Weak Bluegrass

Poa wolfii

Wolf's Bluegrass

Schizachne purpurascens

False Melic Grass

Torreyochloa pallida

Pole Manna-Grass

PONTERDERIACEAE

Heteranthera reniformis

Mud Plantain

POTAMOGETONACEAE

Potamogeton praelongus

White-stemmed Pondweed

Potamogeton pulcher

Spotted Pondweed

Potamogeton robbinsii

Fern Pondweed

Potamogeton strictifolius

Stiff Pondweed

SPARGANIACEAE

Sparganium americanum

American Bur-reed

Sparganium emersum

Green-fruited Bur-reed

ACANTHACEAE

Justicia ovata

Water Willow

ADOXACEAE

Adoxa moschatellina

Moschatel

AMARANTHACEAE

Iresine rhizomatosa

Bloodleaf

APIACEAE

Conioselinum chinense

Hemlock Parsley

Cynosciadium digitatum

Cynosciadium

Eryngium prostratum

Eryngo

Ptilimnium nuttallii

Mock Bishop's Weed

Sanicula smallii

Southern Black Snakeroot

ASCLEPIADACEAE

Asclepias lanuginosa

Wooly Milkweed

Asclepias meadii*

Mead's Milkweed

Asclepias ovalifolia

Oval Milkweed

Asclepias stenophylla

Narrow-leaved Green Milkweed

Matelea decipiens

Climbing Milkweed

ASTERACEAE

Artemisia dracunculus

Dragon Wormwood

Cirsium pitcheri*

Pitcher's (Dune) Thistle

Eupatorium hyssopifolium

Hyssop-leaved Thoroughwort

Helianthus angustifolius

Narrow-leaved Sunflower

Helianthus giganteus

Tall Sunflower

Hymenopappus scabiosaeus

Old Plainsman

Megalodonta beckii

Water Marigold

Melanthera nivea

White Melanthera

Nothocalais cuspidata

Prairie Dandelion

Tetraneuris herbacea*

Lakeside Daisy

BETULACEAE

Alnus incana subsp. rugosa

Speckled Alder

Betula alleghaniensis

Yellow Birch

BORAGINACEAE

Hackelia deflexa var. americana

Stickseed

Heliotropium tenellum

Slender Heliotrope

BRASSICACEAE

Cardamine pratensis var. palustris

Cuckoo Flower

Draba cuneifolia

Whitlow Grass

Physaria ludoviciana

Silvery Bladderpod

CACTACEAE

Opuntia fragilis

Fragile Prickly Pear

CAPPARIDACEAE

Polanisia jamesii

James' Clammyweed

CAPRIFOLIACEAE

Lonicera dioica var. glaucescens

Red Honeysuckle

Lonicera flava

Yellow Honeysuckle

Sambucus racemosa subsp. pubens

Red-berried Elder

Symphoricarpos albus var. albus

Snowberry

CARYOPHYLLACEAE

Silene ovata

Ovate Catchfly

Silene regia

Royal Catchfly

Stellaria pubera

Great Chickweed

CISTACEAE

Hudsonia tomentosa

False Heather

Lechea intermedia

Savanna Pinweed

CLUSIACEAE

Hypericum adpressum

Shore St. John's Wort

Hypericum kalmianum

Kalm's St. John's Wort

CONVOLVUACEAE

Stylisma pickeringii

Patterson's Bindweed

CORNACEAE

Cornus canadensis

Bunchberry

DROSERACEAE

Drosera rotundifolia

Round-leaved Sundew

ELAEAGNACEAE

Shepherdia canadensis

Buffaloberry

ERICACEAE

Andromeda glaucophylla

Bog Rosemary

Arctostaphylos uva-ursi

Bearberry

Vaccinium corymbosum

Highbush Blueberry

Vaccinium macrocarpon

Large Cranberry

Vaccinium oxycoccos

Small Cranberry

Vaccinium stamineum

Deerberry

EUPHORBIACEAE

Chamaesyce polygonifolia

Seaside Spurge

Euphorbia spathulata

Spurge

FABACEAE

Amorpha nitens

Smooth False Indigo

Astragalus crassicarpus var. trichocalyx

Large Ground Plum

Astragalus distortus

Bent Milk Vetch

Astragalus tennesseensis

Tennessee Milk Vetch

Baptisia tinctoria

Yellow Wild Indigo

Cladrastis lutea

Yellowwood

Dalea foliosa **

Leafy Prairie Clover

Galactia mohlenbrockii

Boykin's Dioclea

Lespedeza leptostachya*

Prairie Bush Clover

Mimosa nuttallii

Cat's Claw

FAGACEAE

Quercus texana

Nuttall's Oak

GENTIANACEAE

Bartonia paniculata

Screwstem

Sabatia campestris

Prairie Rose Gentian

GERANIACEAE

Geranium bicknellii

Northern Cranesbill

HYDROPHYLLACEAE

Hydrolea uniflora

One-flowered Hydrolea

Nemophila triloba

Baby Blue-Eyes

Phacelia gilioides

Ozark Phacelia

JUGLANDACEAE

Carya pallida

Pale Hickory

Juglans cinerea

Butternut

LENTIBULARIACEAE

Utricularia cornuta

Horned Bladderwort

Utricularia minor

Small Bladderwort

Utricularia subulata

Hair Bladderwort

LOASACEAE

Mentzelia oligosperma

Stickleaf

MALVACEAE

Iliamna remota

Kankakee Mallow

Malvastrum hispidum

False Mallow

MELASTOMACEAE

Rhexia mariana

Dull Meadow Beauty

MYRICACEAE

Comptonia peregrina

Sweetfern

NYCTAGINACEAE

Mirabilis hirsuta

Hairy Umbrella-wort

ONAGRACEAE

Circaea alpina

Small Enchanter's Nightshade

OROBANCHACEAE

Orobanche fasciculata

Clustered Broomrape

PAPAVERACEAE

Corydalis aurea

Golden Corydalis

Corydalis halei

Hale's Corydalis

Corydalis sempervirens

Pink Corydalis

PLANTAGINACEAE

Plantago cordata

Heart-leaved Plantain

POLEMONIACEAE

Phlox pilosa subsp. sangamonensis

Sangamon Phlox

POLYGALACEAE

Polygala incarnata

Pink Milkwort

POLYGONACEAE

Polygonum careyi

Carey's Heartsease

Tracaulon arifolium

Halberd-leaved Tearthumb

PORTULACACEAE

Phemeranthus calycinus

Fameflower

PRIMULACEAE

Lysimachia radicans

Creeping Loosestrife

Primula mistassinica

Bird's-eye Primrose

Trientalis borealis

Star-flower

PYROLACEAE

Chimaphila maculata

Spotted Wintergreen

Chimaphila umbellata

Pipsissewa

RANUNCULACEAE

Actaea podocarpa

American Bugbane

Actaea racemosa

False Bugbane

Actaea rubifolia

Black Cohosh

Clematis crispa

Blue Jasmine

Clematis viorna

Leatherflower

Delphinium carolinianum

Hill Prairie Larkspur

Ranunculus rhomboideus

Prairie Buttercup

RHAMNACEAE

Berchemia scandens

Supple Jack

Ceanothus herbaceus

Redroot

Rhamnus alnifolia

Alder Buckthorn

ROSACEAE

Amelanchier sanguinea

Shadbush

Malus angustifolia

Narrow-leaved Crabapple

Rosa acicularis

Bristly Rose

Sanguisorba canadensis

American Burnet

Sorbus americana

American Mountain Ash

RUBIACEAE

Galium virgatum

Dwarf Bedstraw

SALICACEAE

Populus balsamifera

Balsam Poplar

Salix serissima

Autumn Willow

Salix syrticola

Dune Willow

SAPOTACEAE

Bumelia lanuginosa

Wooly Buckthorn

SARRACENIACEAE

Sarracenia purpurea

Pitcher Plant

SAXIFRAGACEAE

Ribes hirtellum

Northern Gooseberry

Micranthes virginiensis

Early Saxifrage

SCROPHULARIACEAE

Castilleja sessiliflora

Downy Yellow Painted Cup

Collinsia violacea

Violet Collinsia

Gratiola quartermaniae

Hedge Hyssop

Mimulus glabratus

Yellow Monkey Flower

Penstemon grandifloras

Large Flowered Beard Tongue

Penstemon tubaeflorus

Tube Beard Tongue

Veronica americana

American Brooklime

STYRACACEAE

Halesia carolina

Silverbell Tree

Styrax grandifolius

Bigleaf Snowbell Bush

TILIACEAE

Tilia heterophylla

White Basswood

ULMACEAE

Ulmus thomasii

Rock Elm

VALERIANACEAE

Valeriana uliginosa

Marsh Valerian

Valerianella chenopodifolia

Corn Salad

Valerianella umbilicata

Corn Salad

VIOLACEAE

Viola blanda

Hairy White Violet

Viola canadensis

Canada Violet

Viola primulifolia

Primrose Violet

* Federally designated threatened species

** Federally designated endangered species

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