Illinois Administrative Code
Title 17 - CONSERVATION
Part 1050 - ILLINOIS LIST OF ENDANGERED AND THREATENED FLORA
Section 1050.40 - Threatened Flora of Illinois

Current through Register Vol. 48, No. 38, September 20, 2024

All federally designated endangered or threatened plant species and subspecies have been automatically placed on the Illinois List by the Board and are protected under the Illinois Endangered Species Protection Act even though their names do not appear in this Part. Only those federally designated endangered or threatened plant 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 Part. Users should refer to the US Fish and Wildlife Service at www.fws.gov/endangered/ for a complete listing of all federally designated endangered and threatened species and subspecies.

SCIENTIFIC NAME

COMMON NAME

PHYSCIACEAE

Phaeophyscia leana

Lea's Bog Lichen

EQUISETACEAE

Equisetum pratense

Meadow Horsetail

LYCOPODIACEAE

Huperzia porophila

Cliff Clubmoss

CUPRESSACEAE

Juniperus communis

Ground Juniper

CYPERACEAE

Carex atlantica

Sedge

Carex aurea

Golden Sedge

Carex bromoides

Sedge

Carex cryptolepis

Yellow Sedge

Carex oxylepis

Sharp-scaled Sedge

Carex prasina

Drooping Sedge

Carex viridula

Little Green Sedge

Carex willdenowii

Willdenow's Sedge

Cyperus grayoides

Umbrella Sedge

Cyperus lancastriensis

Galingale

Eleocharis rostellata

Beaked Spike Rush

Schoenoplectus hallii

Hall's Bulrush

JUNCAGINACEAE

Triglochin maritima

Common Bog Arrowgrass

Triglochin palustris

Slender Bog Arrowgrass

LILIACEAE

Stenanthium gramineum

Grass-leaved Lily

Tofieldia glutinosa

False Asphodel

ORCHIDACEAE

Platanthera flava

Tubercled Orchid

POACEAE

Ammophila breviligulata

Marram Grass

Festuca paradoxa

Cluster Fescue

POTAMOGETONACEAE

Potamogeton gramineus

Grass-leaved Pondweed

ASTERACEAE

Aster furcatus

Forked Aster

Boltonia decurrens*

Decurrent False Aster

Rudbeckia missouriensis

Missouri Orange Coneflower

Solidago sciaphila

Cliff Goldenrod

BRASSICAEAE

Cakile edentula var. lacustris

Sea Rocket

CAPRIFOLIACEAE

Viburnum molle

Arrowwood

CARYOPHYLLACEAE

Minuartia patula

Slender Sandwort

CELASTRACEAE

Euonymus americanus

American Strawberry Bush

CRASSULACEAE

Hyloteliphium telephioides

American Orpine

CUCURBITACEAE

Melothria pendula

Squirting Cucumber

DROSERACEAE

Drosera intermedia

Narrow-leaved Sundew

ERICACEAE

Chamaedaphne calyculata

Leatherleaf

FABACEAE

Lathryus ochroleucus

Pale Vetchling

Trifolium reflexum

Buffalo Clover

FAGACEAE

Quercus montana

Rock Chestnut Oak

Quercus phellos

Willow Oak

JUGLANDACEAE

Carya aquatica

Water Hickory

JUNCACEAE

Juncus alpinoarticulatus

Richardson's Rush

LAMIACEAE

Monarda clinopodia

White Bergamot

Salvia azurea

Blue Sage

Synandra hispidula

Hairy Synandra

LENTIBULARIACEAE

Utricularia intermedia

Flat-leaved Bladderwort

MENYANTHACEAE

Menyanthes trifoliata

Buckbean

ONAGRACEAE

Epilobium strictum

Downy Willow Herb

OROBANCHACEAE

Orobanche ludoviciana

Broomrape

OXALIDACEAE

Oxalis illinoensis

Illinois Wood Sorrel

PORTULACACEAE

Phemeranthus parviflorus

Small Flower-of-an-hour

PRIMULACEAE

Dodecatheon frenchii

French's Shooting Star

RANUNCULACEAE

Ranunculus harveyi

Harvey's Buttercup

ROSACEAE

Amelanchier interior

Shadbush

Filipendula rubra

Queen-of-the-Prairie

Rubus odoratus

Purple-flowering Raspberry

Rubus pubescens

Dwarf Raspberry

Rubus schneideri

Bristly Blackberry

SAXIFRAGACEAE

Sullivantia sullivantii

Sullivantia

SCROPHULARIACEAE

Agalinis skinneriana

Pale False Foxglove

Besseya bullii

Kitten Tails

Buchnera americana

Bluehearts

Veronica scutellata

Marsh Speedwell

STYRACACEAE

Styrax americana

Storax

ULMACEAE

Planera aquatica

Water Elm

URTICACEAE

Urtica chamaedryoides

Nettle

* Federally designated threatened species

** Federally designated endangered species.

Disclaimer: These regulations may not be the most recent version. Illinois may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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