Native plants · Illinois

Native plants of Jefferson County

501 plant species are recorded as native to Illinois in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Jefferson County by USDA PLANTS. 214 of them have growing records you can filter by light, moisture, height and estimated cold hardiness. 3 more species are listed as both native and introduced and kept in a separate section.

County summary · USDA PLANTS and Kew WCVP

Jefferson County, Illinois

Native species: 501 Typical Illinois county: 641 (median of 102 counties)
Garden-ready natives: 214 Typical Illinois county: 272
Share by type (all 501 native species): Percent of the 501 native species in each growth type

Tree 11% (56)
Shrub 3% (13)
Wildflower (forb) 60% (302)
Grass or grass-like 19% (97)
Vine 5% (23)
Fern 2% (10)

Wildflowers make up the largest share of the native list (60%), followed by grasses and grass-like plants (19%).

Recorded native ranges can include long-established populations that spread from gardens; check your state’s native plant society list for local guidance. How native status is decided.

ZIP codes mainly in this county fall in USDA hardiness zone 6b (2023 map).

The native plant list

Garden-ready natives 214

Native species with PLANTS growing records (height, light, moisture, minimum temperature). “—” means PLANTS has no value.

Garden-ready native plants of Jefferson County, Illinois
Plant	Type	Height	Light	Water use	Hardy to
American basswood Tilia americana	Tree	100 ft	Shade-tolerant	Medium	Zone 2b
American bellflower Campanulastrum americanum	Wildflower (forb)	6 ft	Shade-tolerant	Medium	Zone 12b
American elm Ulmus americana	Tree	120 ft	Sun–part shade	High	Zone 2b
American hazelnut Corylus americana	Shrub	10 ft	Sun–part shade	Medium	Zone 4a
American hornbeam Carpinus caroliniana	Tree	30 ft	Shade-tolerant	Medium	Zone 4a
American plum Prunus americana	Tree	24 ft	Sun	Medium	Zone 3b
American pokeweed Phytolacca americana	Wildflower (forb)	7.3 ft	Shade-tolerant	Medium	Zone 4a
American sycamore Platanus occidentalis	Tree	100 ft	Sun–part shade	High	Zone 4a
American water horehound Lycopus americanus	Wildflower (forb)	1.8 ft	Shade-tolerant	High	Zone 3b
American water-willow Justicia americana	Wildflower (forb)	2.5 ft	Shade-tolerant	Medium	Zone 4b
Appalachian blazing star Liatris squarrulosa	Wildflower (forb)	2.5 ft	Sun–part shade	Medium	Zone 7a
awlfruit sedge Carex stipata	Grass or grass-like	3.5 ft	Shade-tolerant	Medium	Zone 3b
beaked agrimony Agrimonia rostellata	Wildflower (forb)	2.3 ft	Sun–part shade	Medium	Zone 4a
bearded beggarticks Bidens aristosa	Wildflower (forb)	3.5 ft	Sun–part shade	High	Zone 12b
big bluestem Andropogon gerardii	Grass or grass-like	6 ft	Sun	Low	Zone 2b
bitternut hickory Carya cordiformis	Tree	75 ft	Sun	Medium	Zone 2b
black cherry Prunus serotina	Tree	80 ft	Sun	Medium	Zone 4a
black oak Quercus velutina	Tree	80 ft	Sun–part shade	Medium	Zone 4a
black walnut Juglans nigra	Tree	100 ft	Sun	High	Zone 4b
black willow Salix nigra	Tree	100 ft	Sun	High	Zone 1b
blackeyed Susan Rudbeckia hirta	Wildflower (forb)	1 ft	Sun	Medium	Zone 5a
blackjack oak Quercus marilandica	Tree	25 ft	Sun	Low	Zone 6a
blue mistflower Conoclinium coelestinum	Wildflower (forb)	3.2 ft	Shade-tolerant	Medium	Zone 6a
blunt broom sedge Carex tribuloides	Grass or grass-like	3 ft	Shade-tolerant	Medium	Zone 4b
blunt spikerush Eleocharis obtusa	Grass or grass-like	1.6 ft	Sun	Medium	Zone 11a
bluntleaf bedstraw Galium obtusum	Wildflower (forb)	1.5 ft	Shade-tolerant	High	Zone 4a
bog rush Juncus biflorus	Grass or grass-like	3.5 ft	Shade-tolerant	High	Zone 5b
boxelder Acer negundo	Tree	60 ft	Shade-tolerant	Medium	Zone 2b
bristly buttercup Ranunculus hispidus	Wildflower (forb)	2.5 ft	Shade-tolerant	Medium	Zone 4a
broadleaf arrowhead Sagittaria latifolia	Wildflower (forb)	4.9 ft	Sun	High	Zone 4a
broadleaf cattail Typha latifolia	Wildflower (forb)	5 ft	Sun–part shade	High	Zone 3b
broadleaf rosette grass Dichanthelium latifolium	Grass or grass-like	3.3 ft	Sun–part shade	Low	Zone 3a
broom sedge Carex scoparia	Grass or grass-like	2.5 ft	Shade-tolerant	High	Zone 3b
broomsedge bluestem Andropogon virginicus	Grass or grass-like	3 ft	Sun	Medium	Zone 5b
bulbous bittercress Cardamine bulbosa	Wildflower (forb)	1.4 ft	Shade-tolerant	Medium	Zone 4a
bur oak Quercus macrocarpa	Tree	100 ft	Sun–part shade	Medium	Zone 3b
Bush's sedge Carex bushii	Grass or grass-like	2 ft	Sun–part shade	Medium	Zone 5a
butterfly milkweed Asclepias tuberosa	Wildflower (forb)	2 ft	Sun	Low	Zone 4a
butternut Juglans cinerea	Tree	80 ft	Sun	Medium	Zone 4a
butterweed Packera glabella	Wildflower (forb)	3.2 ft	Sun	High	Zone 10b
calico aster Symphyotrichum lateriflorum	Wildflower (forb)	4 ft	Sun	Medium	Zone 4a
Canada germander Teucrium canadense	Wildflower (forb)	3.3 ft	Sun–part shade	High	Zone 3a
Canada goldenrod Solidago canadensis	Wildflower (forb)	3.5 ft	Sun	Medium	Zone 3a
Canada wildrye Elymus canadensis	Grass or grass-like	3 ft	Shade-tolerant	Medium	Zone 3a
Canadian horseweed Conyza canadensis	Wildflower (forb)	5 ft	Sun	Medium	Zone 12b
cardinalflower Lobelia cardinalis	Wildflower (forb)	5.9 ft	Shade-tolerant	Low	Zone 4a
Carolina foxtail Alopecurus carolinianus	Grass or grass-like	1.7 ft	Sun	Low	Zone 3a
Carolina rose Rosa carolina	Shrub	5 ft	Sun–part shade	Low	Zone 3a
chinquapin oak Quercus muehlenbergii	Tree	70 ft	Sun	Medium	Zone 4a
climbing rose Rosa setigera	Vine	16 ft	Sun	Low	Zone 6a
cockspur hawthorn Crataegus crus-galli	Tree	30 ft	Sun	Low	Zone 4a
common blue violet Viola sororia	Wildflower (forb)	4 in	Sun–part shade	High	Zone 4b
common buttonbush Cephalanthus occidentalis	Tree	15 ft	Shade-tolerant	High	Zone 4a
common duckweed Lemna minor	Wildflower (forb)	—	Sun	High	Zone 3b
common evening primrose Oenothera biennis	Wildflower (forb)	5 ft	Sun	Medium	Zone 4b
common goldstar Hypoxis hirsuta	Wildflower (forb)	10 in	Sun–part shade	Medium	Zone 4a
common hackberry Celtis occidentalis	Tree	60 ft	Shade-tolerant	Low	Zone 2b
common persimmon Diospyros virginiana	Tree	55 ft	Shade-tolerant	Medium	Zone 5a
common rush Juncus effusus	Grass or grass-like	6.6 ft	Sun	Medium	Zone 3b
common selfheal Prunella vulgaris	Wildflower (forb)	1.5 ft	Sun–part shade	Medium	Zone 3b
common serviceberry Amelanchier arborea	Tree	36 ft	Shade-tolerant	Medium	Zone 2b
common sneezeweed Helenium autumnale	Wildflower (forb)	4.9 ft	Sun	Medium	Zone 3a
composite dropseed Sporobolus compositus	Grass or grass-like	3 ft	Sun	Low	Zone 3b
coon's tail Ceratophyllum demersum	Wildflower (forb)	—	Sun–part shade	High	Zone 3b
coralberry Symphoricarpos orbiculatus	Shrub	2 ft	Sun–part shade	High	Zone 5a
cup plant Silphium perfoliatum	Wildflower (forb)	6 ft	Sun–part shade	—	Zone 2b
deertongue Dichanthelium clandestinum	Grass or grass-like	2 ft	Sun	Low	Zone 4a
devil's beggartick Bidens frondosa	Wildflower (forb)	4 ft	Sun–part shade	Medium	Zone 12a
ditch stonecrop Penthorum sedoides	Wildflower (forb)	2.6 ft	Sun–part shade	Medium	Zone 4b
dotted smartweed Polygonum punctatum	Wildflower (forb)	3.2 ft	Sun	Medium	Zone 10b
dwarf St. Johnswort Hypericum mutilum	Wildflower (forb)	2.6 ft	Sun–part shade	Medium	Zone 5a
eastern gamagrass Tripsacum dactyloides	Grass or grass-like	5 ft	Sun	High	Zone 5a
eastern narrowleaf sedge Carex amphibola	Grass or grass-like	2 ft	Shade-tolerant	Medium	Zone 7a
eastern redbud Cercis canadensis	Tree	30 ft	Shade-tolerant	Low	Zone 4b
eastern redcedar Juniperus virginiana	Tree	50 ft	Sun–part shade	Low	Zone 3a
fall panicgrass Panicum dichotomiflorum	Grass or grass-like	3.3 ft	Sun	High	Zone 3a
false daisy Eclipta prostrata	Wildflower (forb)	3.2 ft	Sun–part shade	Medium	Zone 10b
false indigo bush Amorpha fruticosa	Shrub	15 ft	Sun	Low	Zone 3b
field horsetail Equisetum arvense	Fern	11 in	Sun–part shade	High	Zone 3a
field paspalum Paspalum laeve	Grass or grass-like	2.9 ft	Sun–part shade	Medium	Zone 6a
field pussytoes Antennaria neglecta	Wildflower (forb)	1 ft	Sun	Low	Zone 3b
flowering dogwood Cornus florida	Tree	30 ft	Shade-tolerant	Low	Zone 4b
fowl mannagrass Glyceria striata	Grass or grass-like	5.7 ft	Shade-tolerant	Medium	Zone 3b
fox sedge Carex vulpinoidea	Grass or grass-like	3.2 ft	Sun–part shade	Medium	Zone 3b
foxglove beardtongue Penstemon digitalis	Wildflower (forb)	4 ft	Shade-tolerant	Low	Zone 3b
Frank's sedge Carex frankii	Grass or grass-like	2 ft	Shade-tolerant	High	Zone 5a
fringed sedge Carex crinita	Grass or grass-like	5.2 ft	Sun–part shade	Medium	Zone 4a
fringeleaf wild petunia Ruellia humilis	Wildflower (forb)	2.6 ft	Shade-tolerant	Low	Zone 4a
frost grape Vitis vulpina	Vine	83 ft	Sun–part shade	Medium	Zone 5a
giant cane Arundinaria gigantea	Shrub	25 ft	Sun	Medium	Zone 5a
giant goldenrod Solidago gigantea	Wildflower (forb)	8.2 ft	Sun–part shade	Medium	Zone 4a
golden ragwort Packera aurea	Wildflower (forb)	3.9 ft	Shade-tolerant	High	Zone 3a
gray goldenrod Solidago nemoralis	Wildflower (forb)	2 ft	Sun	Medium	Zone 4a
Gray's sedge Carex grayi	Grass or grass-like	3 ft	Shade-tolerant	High	Zone 4a
graybark grape Vitis cinerea	Vine	50 ft	Sun–part shade	Medium	Zone 6b
green arrow arum Peltandra virginica	Wildflower (forb)	2.3 ft	Sun–part shade	High	Zone 5a
green ash Fraxinus pennsylvanica	Tree	80 ft	Shade-tolerant	Medium	Zone 2b
green bulrush Scirpus atrovirens	Grass or grass-like	5.9 ft	Sun	Medium	Zone 2a
hairy white oldfield aster Symphyotrichum pilosum	Wildflower (forb)	3 ft	Shade-tolerant	Medium	Zone 4a
harvestlice Agrimonia parviflora	Wildflower (forb)	6 ft	Sun–part shade	High	Zone 4a
honeylocust Gleditsia triacanthos	Tree	70 ft	Sun	Medium	Zone 3b
hop sedge Carex lupulina	Grass or grass-like	4.3 ft	Sun–part shade	Medium	Zone 3b
hophornbeam Ostrya virginiana	Tree	45 ft	Shade-tolerant	Low	Zone 3b
Indian woodoats Chasmanthium latifolium	Grass or grass-like	4.6 ft	Shade-tolerant	Medium	Zone 4a
Indiangrass Sorghastrum nutans	Grass or grass-like	6 ft	Sun	Medium	Zone 3b
Indianhemp Apocynum cannabinum	Wildflower (forb)	3.3 ft	Sun–part shade	High	Zone 3a
inland rush Juncus interior	Grass or grass-like	3 ft	Sun–part shade	Medium	Zone 3b
Jack in the pulpit Arisaema triphyllum	Wildflower (forb)	1.5 ft	Shade-tolerant	High	Zone 5b
Jerusalem artichoke Helianthus tuberosus	Wildflower (forb)	9.8 ft	Sun–part shade	Low	Zone 3a
jewelweed Impatiens capensis	Wildflower (forb)	4.9 ft	Shade-tolerant	Medium	Zone 10b
late purple aster Symphyotrichum patens	Wildflower (forb)	2.5 ft	Shade-tolerant	Medium	Zone 3b
leafy pondweed Potamogeton foliosus	Wildflower (forb)	—	Sun	High	Zone 3b
little barley Hordeum pusillum	Grass or grass-like	1.2 ft	Sun	Medium	Zone 10b
little bluestem Schizachyrium scoparium	Grass or grass-like	3 ft	Sun	Low	Zone 3b
littleleaf buttercup Ranunculus abortivus	Wildflower (forb)	2.8 ft	Shade-tolerant	Medium	Zone 3a
longleaf pondweed Potamogeton nodosus	Wildflower (forb)	—	Sun	High	Zone 3b
longleaf starwort Stellaria longifolia	Wildflower (forb)	1.5 ft	Shade-tolerant	High	Zone 3b
longspike tridens Tridens strictus	Grass or grass-like	4.9 ft	Sun–part shade	Low	Zone 2a
marsh flatsedge Cyperus pseudovegetus	Grass or grass-like	2.5 ft	Sun	High	Zone 8a
marsh seedbox Ludwigia palustris	Wildflower (forb)	2 in	Sun	High	Zone 4a
meadow evening primrose Oenothera pilosella	Wildflower (forb)	2 ft	Sun–part shade	Medium	Zone 5a
Mississippi buttercup Ranunculus laxicaulis	Wildflower (forb)	1.2 ft	Sun–part shade	High	Zone 6b
Missouri goldenrod Solidago missouriensis	Wildflower (forb)	3 ft	Sun–part shade	Low	Zone 3b
Missouri ironweed Vernonia missurica	Wildflower (forb)	6 ft	Sun	Medium	Zone 4a
Missouri River willow Salix eriocephala	Tree	52 ft	Shade-tolerant	High	Zone 3b
mockernut hickory Carya tomentosa	Tree	85 ft	Sun–part shade	Medium	Zone 4a
New Jersey tea Ceanothus americanus	Shrub	3 ft	Shade-tolerant	Low	Zone 4b
nodding lady's tresses Spiranthes cernua	Wildflower (forb)	1.5 ft	Sun	High	Zone 3b
northern maidenhair Adiantum pedatum	Fern	1.3 ft	Shade-tolerant	Medium	Zone 3b
northern red oak Quercus rubra	Tree	81 ft	Sun–part shade	Medium	Zone 3b
orangegrass Hypericum gentianoides	Wildflower (forb)	2 ft	Sun–part shade	Low	Zone 12a
panicledleaf ticktrefoil Desmodium paniculatum	Wildflower (forb)	3 ft	Sun–part shade	Low	Zone 6a
partridge pea Chamaecrista fasciculata	Wildflower (forb)	2.4 ft	Shade-tolerant	Medium	Zone 7a
pawpaw Asimina triloba	Tree	25 ft	Shade-tolerant	Medium	Zone 4b
Pennsylvania smartweed Polygonum pensylvanicum	Wildflower (forb)	3.9 ft	Sun	Medium	Zone 10b
Philadelphia fleabane Erigeron philadelphicus	Wildflower (forb)	2.8 ft	Sun–part shade	Medium	Zone 4b
pignut hickory Carya glabra	Tree	80 ft	Sun–part shade	Medium	Zone 4a
pin oak Quercus palustris	Tree	100 ft	Sun	High	Zone 4a
post oak Quercus stellata	Tree	60 ft	Sun	Medium	Zone 4a
poverty rush Juncus tenuis	Grass or grass-like	1.5 ft	Sun–part shade	Medium	Zone 3b
prairie blazing star Liatris pycnostachya	Wildflower (forb)	3.5 ft	Sun	Medium	Zone 4a
prairie cordgrass Spartina pectinata	Grass or grass-like	8 ft	Sun	High	Zone 3b
prairie crab apple Malus ioensis	Tree	25 ft	Sun	Medium	Zone 4b
prairie fleabane Erigeron strigosus	Wildflower (forb)	3 ft	Sun	Medium	Zone 4b
prairie wedgescale Sphenopholis obtusata	Grass or grass-like	3.2 ft	Sun–part shade	Medium	Zone 3a
prairie willow Salix humilis	Shrub	10 ft	Sun–part shade	High	Zone 3a
pride of Ohio Dodecatheon meadia	Wildflower (forb)	2 ft	Shade-tolerant	Medium	Zone 3b
purple lovegrass Eragrostis spectabilis	Grass or grass-like	11 in	Sun	Low	Zone 3a
purplehead sneezeweed Helenium flexuosum	Wildflower (forb)	3.2 ft	Sun	Low	Zone 4b
purpletop tridens Tridens flavus	Grass or grass-like	2.5 ft	Sun	Low	Zone 5a
rattlesnake fern Botrychium virginianum	Fern	1.4 ft	Shade-tolerant	Medium	Zone 3b
red maple Acer rubrum	Tree	68 ft	Sun–part shade	High	Zone 2b
red mulberry Morus rubra	Tree	70 ft	Shade-tolerant	Medium	Zone 4a
redroot flatsedge Cyperus erythrorhizos	Grass or grass-like	2.5 ft	Sun	Medium	Zone 11a
redtop panicgrass Panicum rigidulum	Grass or grass-like	3.3 ft	Sun	High	Zone 4a
rice cutgrass Leersia oryzoides	Grass or grass-like	4.9 ft	Sun	High	Zone 4a
river birch Betula nigra	Tree	70 ft	Sun	High	Zone 4a
roundhead lespedeza Lespedeza capitata	Wildflower (forb)	2.6 ft	Sun	Low	Zone 4b
rufous bulrush Scirpus pendulus	Grass or grass-like	4 ft	Sun	Medium	Zone 3b
sandbar willow Salix interior	Tree	30 ft	Sun	—	Zone 1a
sassafras Sassafras albidum	Tree	75 ft	Sun	Low	Zone 4b
sawtooth blackberry Rubus argutus	Shrub	8.2 ft	Sun	Medium	Zone 6a
sawtooth sunflower Helianthus grosseserratus	Wildflower (forb)	5 ft	Sun	Medium	Zone 3a
shagbark hickory Carya ovata	Tree	75 ft	Sun–part shade	Medium	Zone 3a
sharpwing monkeyflower Mimulus alatus	Wildflower (forb)	2.3 ft	Shade-tolerant	High	Zone 5a
shingle oak Quercus imbricaria	Tree	45 ft	Sun	Medium	Zone 5b
shoreline sedge Carex hyalinolepis	Grass or grass-like	4 ft	Sun–part shade	High	Zone 4b
Short's sedge Carex shortiana	Grass or grass-like	3 ft	Sun–part shade	High	Zone 5b
shrubby St. Johnswort Hypericum prolificum	Shrub	3.2 ft	Sun–part shade	High	Zone 4b
silver maple Acer saccharinum	Tree	90 ft	Sun–part shade	Medium	Zone 2b
slender spikerush Eleocharis tenuis	Grass or grass-like	2.9 ft	Sun	Low	Zone 5a
slippery elm Ulmus rubra	Tree	85 ft	Shade-tolerant	High	Zone 3a
small beggarticks Bidens discoidea	Wildflower (forb)	5.2 ft	Sun–part shade	High	Zone 12b
smooth hedgenettle Stachys tenuifolia	Wildflower (forb)	25 ft	Shade-tolerant	High	Zone 4a
smooth phlox Phlox glaberrima	Wildflower (forb)	3 ft	Sun–part shade	High	Zone 4b
smooth sumac Rhus glabra	Tree	12 ft	Sun	Low	Zone 4a
southern arrowwood Viburnum dentatum	Tree	8 ft	Sun–part shade	—	Zone 5a
southern arrowwood Viburnum recognitum	Tree	9 ft	Shade-tolerant	Medium	Zone 4b
southern waternymph Najas guadalupensis	Wildflower (forb)	1 ft	Sun	High	Zone 3b
spotted St. Johnswort Hypericum punctatum	Wildflower (forb)	3 ft	Shade-tolerant	Medium	Zone 4a
squarrose sedge Carex squarrosa	Grass or grass-like	3 ft	Shade-tolerant	Medium	Zone 4b
strawcolored flatsedge Cyperus strigosus	Grass or grass-like	3.2 ft	Sun	Medium	Zone 4a
swamp cottonwood Populus heterophylla	Tree	100 ft	Sun	High	Zone 5a
swamp milkweed Asclepias incarnata	Wildflower (forb)	4.9 ft	Sun	High	Zone 3b
swamp rose Rosa palustris	Shrub	8.2 ft	Shade-tolerant	Medium	Zone 4a
swamp smartweed Polygonum hydropiperoides	Wildflower (forb)	—	Sun	Medium	Zone 10b
swamp white oak Quercus bicolor	Tree	100 ft	Sun–part shade	High	Zone 4b
sweet woodreed Cinna arundinacea	Grass or grass-like	4.9 ft	Shade-tolerant	Low	Zone 4a
sweetgum Liquidambar styraciflua	Tree	100 ft	Sun	High	Zone 5a
tapertip rush Juncus acuminatus	Grass or grass-like	3 ft	Sun–part shade	High	Zone 4a
teal lovegrass Eragrostis hypnoides	Grass or grass-like	4 in	Sun	High	Zone 3b
tiny mousetail Myosurus minimus	Wildflower (forb)	5 in	Sun–part shade	Medium	Zone 12b
Torrey's rush Juncus torreyi	Grass or grass-like	3.1 ft	Sun	Medium	Zone 3b
trumpet creeper Campsis radicans	Vine	2 ft	Sun	Low	Zone 6a
Virginia creeper Parthenocissus quinquefolia	Vine	1 ft	Sun–part shade	Low	Zone 4b
Virginia iris Iris virginica	Wildflower (forb)	3.3 ft	Shade-tolerant	High	Zone 8b
Virginia spiderwort Tradescantia virginiana	Wildflower (forb)	1.1 ft	Sun–part shade	Medium	Zone 3b
Virginia threeseed mercury Acalypha virginica	Wildflower (forb)	3 ft	Sun–part shade	Medium	Zone 10b
Virginia wildrye Elymus virginicus	Grass or grass-like	2.5 ft	Shade-tolerant	Medium	Zone 4b
water knotweed Polygonum amphibium	Wildflower (forb)	1 in	Sun	High	Zone 5a
waterthread pondweed Potamogeton diversifolius	Wildflower (forb)	3.2 ft	Sun	High	Zone 3b
white ash Fraxinus americana	Tree	90 ft	Sun	High	Zone 4a
white avens Geum canadense	Wildflower (forb)	3.9 ft	Shade-tolerant	Medium	Zone 4a
white doll's daisy Boltonia asteroides	Wildflower (forb)	8 ft	Sun–part shade	Medium	Zone 3b
white oak Quercus alba	Tree	100 ft	Sun–part shade	Medium	Zone 3a
whitegrass Leersia virginica	Grass or grass-like	3.9 ft	Shade-tolerant	Medium	Zone 3a
whiteroot rush Juncus brachycarpus	Grass or grass-like	3 ft	Sun–part shade	Medium	Zone 5a
wild bergamot Monarda fistulosa	Wildflower (forb)	4.9 ft	Sun–part shade	High	Zone 4a
wild blue phlox Phlox divaricata	Wildflower (forb)	3 ft	Sun–part shade	Medium	Zone 4a
winged elm Ulmus alata	Tree	65 ft	Shade-tolerant	Medium	Zone 5b
winged sumac Rhus copallinum	Tree	8 ft	Sun	Low	Zone 4b
winter bentgrass Agrostis hyemalis	Grass or grass-like	3.5 ft	Sun–part shade	High	Zone 4a
woolgrass Scirpus cyperinus	Grass or grass-like	4.9 ft	Sun–part shade	High	Zone 4a
wrinkleleaf goldenrod Solidago rugosa	Wildflower (forb)	3.3 ft	Sun–part shade	Medium	Zone 4a

Other native species recorded here 287

PLANTS has no growing records for these, so light, moisture, height and zone filters cannot include them. Many are wild species seldom sold by nurseries.

amberique-bean Strophostyles helvola
American alumroot Heuchera americana
American bladdernut Staphylea trifolia
American burnweed Erechtites hieraciifolius
American false pennyroyal Hedeoma pulegioides
American hogpeanut Amphicarpaea bracteata
American ipecac Gillenia stipulata
American lopseed Phryma leptostachya
annual marsh elder Iva annua
arrowhead rattlebox Crotalaria sagittalis
arrowleaf violet Viola sagittata
ashy sunflower Helianthus mollis
beaked cornsalad Valerianella radiata
beaked panicgrass Panicum anceps
bearded shorthusk Brachyelytrum erectum
biennial beeblossom Oenothera gaura
big devils beggartick Bidens vulgata
blackseed plantain Plantago rugelii
bloodroot Sanguinaria canadensis
bloody butcher Trillium recurvatum
blue waxweed Cuphea viscosissima
bluejacket Tradescantia ohiensis
bluntlobe cliff fern Woodsia obtusa
bog yellowcress Rorippa palustris
Bosc's panicgrass Dichanthelium boscii
bristly greenbrier Smilax tamnoides
browneyed Susan Rudbeckia triloba
bushy knotweed Polygonum ramosissimum
button eryngo Eryngium yuccifolium
camphor pluchea Pluchea camphorata
Canada lettuce Lactuca canadensis
Canadian blacksnakeroot Sanicula canadensis
Canadian clearweed Pilea pumila
Carolina geranium Geranium carolinianum
Carolina horsenettle Solanum carolinense
Carolina leaf-flower Phyllanthus caroliniensis
Carolina sedge Carex caroliniana
carpenter's square Scrophularia marilandica
Chapman's bluegrass Poa chapmaniana
Christmas fern Polystichum acrostichoides
churchmouse threeawn Aristida dichotoma
clammy groundcherry Physalis heterophylla
clammy hedgehyssop Gratiola neglecta
clasping Venus' looking-glass Triodanis perfoliata
climbing false buckwheat Polygonum scandens
clustered fescue Festuca paradoxa
common boneset Eupatorium perfoliatum
common cinquefoil Potentilla simplex
common dittany Cunila origanoides
common milkweed Asclepias syriaca
common moonseed Menispermum canadense
common threeseed mercury Acalypha rhomboidea
common yellow oxalis Oxalis stricta
compassplant Silphium laciniatum
crowpoison Nothoscordum bivalve
curlytop knotweed Polygonum lapathifolium
cutleaf evening primrose Oenothera laciniata
cutleaf grapefern Botrychium dissectum
cutleaf toothwort Cardamine concatenata
cypress panicgrass Dichanthelium dichotomum
Dillenius' ticktrefoil Desmodium glabellum
downy carrionflower Smilax pulverulenta
downy phlox Phlox pilosa
Dudley's rush Juncus dudleyi
dutchman's breeches Dicentra cucullaria
dwarf horseweed Conyza ramosissima
dwarf larkspur Delphinium tricorne
dwarf plantain Plantago pusilla
early goldenrod Solidago juncea
eastern bluestar Amsonia tabernaemontana
eastern bottlebrush grass Elymus hystrix
eastern poison ivy Toxicodendron radicans
ebony spleenwort Asplenium platyneuron
Elliott's bentgrass Agrostis elliottiana
elmleaf goldenrod Solidago ulmifolia
Engelmann's spikerush Eleocharis engelmannii
erect knotweed Polygonum erectum
fall phlox Phlox paniculata
fall witchgrass Digitaria cognata
false aloe Manfreda virginica
feathery false lily of the valley Maianthemum racemosum
fescue sedge Carex festucacea
field pansy Viola bicolor
field thistle Cirsium discolor
floating primrose-willow Ludwigia peploides
flowering spurge Euphorbia corollata
fluxweed Trichostema brachiatum
fragrant bedstraw Galium triflorum
fringed loosestrife Lysimachia ciliata
fuzzy wuzzy sedge Carex hirsutella
giant ironweed Vernonia gigantea
globe flatsedge Cyperus echinatus
goldenseal Hydrastis canadensis
gravelweed Verbesina helianthoides
great ragweed Ambrosia trifida
Greek valerian Polemonium reptans
green antelopehorn Asclepias viridis
green carpetweed Mollugo verticillata
green comet milkweed Asclepias viridiflora
green dragon Arisaema dracontium
green milkweed Asclepias hirtella
hairy beardtongue Penstemon hirsutus
hairy bedstraw Galium pilosum
hairy forked nailwort Paronychia fastigiata
hairy hawkweed Hieracium longipilum
hairy small-leaf ticktrefoil Desmodium ciliare
hairy wildrye Elymus villosus
hairy woodland brome Bromus pubescens
hairyseed paspalum Paspalum pubiflorum
hazel dodder Cuscuta coryli
heartleaf skullcap Scutellaria ovata
heavy sedge Carex gravida
hedge false bindweed Calystegia sepium
Heller's rosette grass Dichanthelium oligosanthes
hoary puccoon Lithospermum canescens
hoary skullcap Scutellaria incana
hoary verbena Verbena stricta
hogwort Croton capitatus
honeyvine Cynanchum laeve
hortulan plum Prunus hortulana
Indian-tobacco Lobelia inflata
inflated narrow-leaf sedge Carex grisea
jumpseed Polygonum virginianum
lanceleaf fogfruit Phyla lanceolata
lanceleaf ragweed Ambrosia bidentata
largebract ticktrefoil Desmodium cuspidatum
largebracted plantain Plantago aristata
lateflowering thoroughwort Eupatorium serotinum
lesser Canadian St. Johnswort Hypericum canadense
lesser yellow lady's slipper Cypripedium parviflorum
licorice bedstraw Galium circaezans
lizard's tail Saururus cernuus
longsepal beardtongue Penstemon calycosus
low spearwort Ranunculus pusillus
lowland bladderfern Cystopteris protrusa
lowland rotala Rotala ramosior
man of the earth Ipomoea pandurata
manyfruit primrose-willow Ludwigia polycarpa
Maximilian sunflower Helianthus maximiliani
mayapple Podophyllum peltatum
meadow garlic Allium canadense
Michaux's croton Croton michauxii
Michigan lily Lilium michiganense
Missouri violet Viola missouriensis
Muhlenberg's sedge Carex muehlenbergii
mullein foxglove Dasistoma macrophylla
nakedflower ticktrefoil Desmodium nudiflorum
narrowleaf mountainmint Pycnanthemum tenuifolium
narrowleaf pinweed Lechea tenuifolia
neckweed Veronica peregrina
New England aster Symphyotrichum novae-angliae
nits and lice Hypericum drummondii
nodding chickweed Cerastium nutans
northern adderstongue Ophioglossum pusillum
northern dewberry Rubus flagellaris
Nuttall's ticktrefoil Desmodium nuttallii
pale beardtongue Penstemon pallidus
pale dock Rumex altissimus
pale Indian plantain Arnoglossum atriplicifolium
pink fuzzybean Strophostyles umbellata
poorjoe Diodia teres
potato dwarfdandelion Krigia dandelion
poverty dropseed Sporobolus vaginiflorus
poverty oatgrass Danthonia spicata
prairie broomweed Amphiachyris dracunculoides
prairie rosinweed Silphium terebinthinaceum
prairie sunflower Helianthus petiolaris
prairie tea Croton monanthogynus
prairie threeawn Aristida oligantha
purple fringeless orchid Platanthera peramoena
purple meadowparsnip Thaspium trifoliatum
purple milkweed Asclepias purpurascens
purple milkwort Polygala sanguinea
queendevil Hieracium gronovii
rabbit-tobacco Pseudognaphalium obtusifolium
red hickory Carya ovalis
redwhisker clammyweed Polanisia dodecandra
rock buttercup Ranunculus micranthus
rock muhly Muhlenbergia sobolifera
rope dodder Cuscuta glomerata
rosepink Sabatia angularis
rough barnyardgrass Echinochloa muricata
rough false pennyroyal Hedeoma hispida
roundseed panicgrass Dichanthelium sphaerocarpon
roundseed St. Johnswort Hypericum sphaerocarpum
roundstem false foxglove Agalinis gattingeri
Sampson's snakeroot Orbexilum pedunculatum
sand bittercress Cardamine parviflora
sand violet Viola affinis
scaldweed Cuscuta gronovii
scaly blazing star Liatris squarrosa
seedbox Ludwigia alternifolia
sensitive fern Onoclea sensibilis
sessileleaf ticktrefoil Desmodium sessilifolium
shining bedstraw Galium concinnum
shortbeak sedge Carex brevior
shortpod draba Draba brachycarpa
shortstalk chickweed Cerastium brachypodum
shrubby lespedeza Lespedeza frutescens
sidebeak pencilflower Stylosanthes biflora
sixweeks fescue Vulpia octoflora
sleepy silene Silene antirrhina
slender fimbry Fimbristylis autumnalis
slender lespedeza Lespedeza virginica
slender snakecotton Froelichia gracilis
slender threeseed mercury Acalypha gracilens
slender yellow woodsorrel Oxalis dillenii
slenderleaf false foxglove Agalinis tenuifolia
slickseed fuzzybean Strophostyles leiosperma
slimpod rush Juncus diffusissimus
slimspike threeawn Aristida longespica
small skullcap Scutellaria parvula
smallhead doll's daisy Boltonia diffusa
smooth oxeye Heliopsis helianthoides
smooth rose Rosa blanda
smooth small-leaf ticktrefoil Desmodium marilandicum
smooth Solomon's seal Polygonatum biflorum
Spanish needles Bidens bipinnata
spoonleaf purple everlasting Gamochaeta purpurea
spotted geranium Geranium maculatum
spotted sandmat Chamaesyce maculata
spotted water hemlock Cicuta maculata
spreading chervil Chaerophyllum procumbens
spring blue eyed Mary Collinsia verna
spring forget-me-not Myosotis verna
stalked wild petunia Ruellia pedunculata
Standley's goosefoot Chenopodium standleyanum
starved panicgrass Dichanthelium depauperatum
stiff tickseed Coreopsis palmata
stiff ticktrefoil Desmodium obtusum
stiff yellow flax Linum medium
stout rush Juncus nodatus
strawberry-tomato Physalis grisea
swamp dock Rumex verticillatus
swamp verbena Verbena hastata
sweet coneflower Rudbeckia subtomentosa
sweetscented joe pye weed Eutrochium purpureum
tall blazing star Liatris aspera
tall blue lettuce Lactuca biennis
tall rattlesnakeroot Prenanthes altissima
tall thimbleweed Anemone virginiana
tall thistle Cirsium altissimum
tall tickseed Coreopsis tripteris
terrestrial water-starwort Callitriche terrestris
thickleaf phlox Phlox carolina
thin paspalum Paspalum setaceum
tiny bluet Houstonia pusilla
trailing lespedeza Lespedeza procumbens
tufted lovegrass Eragrostis pectinacea
twinleaf Jeffersonia diphylla
upright carrionflower Smilax ecirrhata
Venus' pride Houstonia purpurea
violet lespedeza Lespedeza violacea
violet woodsorrel Oxalis violacea
Virginia dwarfdandelion Krigia virginica
Virginia mountainmint Pycnanthemum virginianum
Virginia pepperweed Lepidium virginicum
Virginia plantain Plantago virginica
Virginia springbeauty Claytonia virginica
Virginia tephrosia Tephrosia virginiana
Virginia winged rockcress Sibara virginica
waterpurslane Didiplis diandra
western tansymustard Descurainia pinnata
white blue-eyed grass Sisyrinchium albidum
white fawnlily Erythronium albidum
white heath aster Symphyotrichum ericoides
white snakeroot Ageratina altissima
white vervain Verbena urticifolia
whitetinge sedge Carex albicans
wholeleaf rosinweed Silphium integrifolium
whorled milkwort Polygala verticillata
whorled mountainmint Pycnanthemum verticillatum
wild hydrangea Hydrangea arborescens
wild quinine Parthenium integrifolium
wild yam Dioscorea villosa
willowleaf aster Symphyotrichum praealtum
winged lythrum Lythrum alatum
wingstem Verbesina alternifolia
wiry panicgrass Panicum flexile
witchgrass Panicum capillare
woman's tobacco Antennaria plantaginifolia
woodland lettuce Lactuca floridana
woodland pinkroot Spigelia marilandica
woodland sunflower Helianthus divaricatus
yellow giant hyssop Agastache nepetoides
yellowfruit sedge Carex annectens
yellowseed false pimpernel Lindernia dubia

Also listed as native and introduced here 3

PLANTS labels these species both native and introduced in this state: some forms are native and others were brought in from elsewhere. Most gardeners should choose plants from the main list.

annual ragweedAmbrosia artemisiifolia
common reedPhragmites australis
Kentucky bluegrassPoa pratensis

Compared with Illinois

The typical county is the median of the 102 Illinois counties with PLANTS county records; the statewide figure counts every species native anywhere in the state. More species is not better or worse: counties differ in size, habitat and how thoroughly they have been surveyed.

Native species counts, Jefferson County and Illinois
Measure	Jefferson County	Typical county	Statewide
Native species	501	641	1,909
Garden-ready natives	214	272	652
Tree	56	—	187
Shrub	13	—	96
Wildflower (forb)	302	—	1,015
Grass or grass-like	97	—	444
Vine	23	—	79
Fern	10	—	88

Neighboring counties

Counties that share a ZIP code with Jefferson County.

Franklin County, IL 233 garden-ready
Hamilton County, IL 232 garden-ready
Marion County, IL 247 garden-ready
Perry County, IL 276 garden-ready
Washington County, IL 245 garden-ready
Wayne County, IL 220 garden-ready

Source & data date

Source: USDA NRCS PLANTS Database: county distribution records, native status and plant characteristics. CC0 (public domain dedication, per the data.gov catalog record).; Kew’s World Checklist of Vascular Plants (WCVP): native or introduced status by state. CC BY 3.0.; USGS US-RIIS (ver. 2.0): species listed as introduced are excluded. CC0.
Citation: USDA, NRCS. 2026. The PLANTS Database (https://plants.usda.gov, 11/04/2026). National Plant Data Team, Greensboro, NC USA.; Govaerts R. (ed.) (2026). WCVP: World Checklist of Vascular Plants. Facilitated by the Royal Botanic Gardens, Kew. Data file dated 2026-06-04, http://sftp.kew.org/pub/data-repositories/WCVP/ (retrieved 2026-11-04). Paper: Govaerts R. et al. (2021) The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8, 215.
Data date: Retrieved from PLANTS on November 4, 2026; WCVP data file dated June 4, 2026.
Zones: USDA Plant Hardiness Zone Map (2023) ZIP table: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 3, 2026. Plant zones on this site are our estimate, not the official map.
Scope: Jefferson County (county FIPS 17081), Illinois. 501 native species from PLANTS county distribution records; garden-ready = species with a PLANTS characteristics record.
Method: A species is listed when it is recorded as native to the state in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in the county by USDA PLANTS. Species PLANTS labels both native and introduced are listed separately. Full method · All sources

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