Illinois Natural History Survey - University of Illinois

The Tallgrass Prairie in Illinois

Images of Prairie Plants — Index of Common Names

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Alphabetical by Common Name:

A B C D E F G H I J K L M N O P Q R S T Y V W X Y Z

 

A

agueweed (Gentiana quinquefolia)
Alexanders, golden (Zizia aurea)
American feverfew (Parthenium integrifolium)
American sea rocket (Cakile edulenta)
anemone, Carolina (Anemone caroliniana)
antelopehorn milkweed, green (Asclepias viridis)
aromatic aster (Aster oblongifolius)
arrowhead rattlebox (Crotalaria sagittalis)
ashy sunflower (Helianthus mollis)
asparagus, wild (Asparagus officinalis)
aster, aromatic (Aster oblongifolius)
aster, decurrent false (Boltoinia decurrens)
aster, false (Boltoinia asteroides)
aster, flat-top (Aster umbellatus)
aster, flax-leaved (Aster linariifolius)
aster, heath (Aster ericoides)
aster, New England (Aster novae-angliae)
aster, prairie golden (Chrysopsis camporum)
aster, Short's (Aster shortii)
aster, silky (Aster sericeus)
aster, sky-blue (Aster azureus)
aster, smooth (Aster laevis)
aster, smooth blue (Aster laevis)
aster, stiff (Solidago ptarmicoides)
Atlantic camas (Camassia scilloides)
avens, white (Geum canadense)
avens, wood (Geum canadense)

B

balsam, old-field (Gnaphalium obtusifolium)
bastard toadflax (Comandra umbellata)
beach heather, woolly (Hudsonia tomentosa)
beardstongue, foxglove (Penstemon digitalis)
beardstongue, pale (Penstemon pallidus)
beebalm (Monarda fistulosa)
beebalm, spotted (Monarda punctata)
bergamot, wild (Monarda fistulosa)
betony, swamp wood (Pedicularis lanceolata)
betony, wood (Pedicularis canadensis)
big bluestem (Andropogon gerardii)
bindweed, Patterson's (Stylisma pickeringii subsp. pattersonii)
bird's foot violet (Viola pedata)
black-eyed Susan (Rudbeckia hirta)
black-eyed Susan, sweet (Rudbeckia subtomentosa)
bladderpod, foothill (Lesquerella ludoviciana)
bladderpod, silvery (Lesquerella ludoviciana)
blazing star, cylindric (Liatris cylindracea)
blazing star, marsh (Liatris spicata)
blazing star, prairie (Liatris pycnostachya)
blazing star, rough (Liatris aspera)
blazing star, savanna (Liatris scariosa var. nieuwlandii)
blazing star, tall (Liatris aspera)
blue grama (Bouteloua gracilis)
bluestem, big (Andropogon gerardii)
bluestem, little (Schizachyrium scoparium)
bog goldenrod (Solidago uliginosa)
bog white violet (Viola lanceolata)
boneset, common (Eupatorium perfoliatum)
boneset, late (Eupatorium serotinum)
boneset, perfoliate (Eupatorium perfoliatum)
boneset, tall (Eupatorium altissimum)
bottle gentian, closed (Gentiana andrewsii)
bottle gentian, soapwort (Gentiana saponaria)
brittle prickly pear cactus (Opuntia fragilis)
brown-eyed Susan (Rudbeckia triloba)
buffalo clover (Trifolium reflexum)
bunch-flower (Melanthium virginicum)
bunchflower, Virginia (Melanthium virginicum)
bundleflower, prairie (Desmanthus illinoensis)
bush clover, round-headed (Lespedeza capitata)
buttercup, prairie (Ranunculus rhomboideus)
buttercup, plains (Ranunculus rhomboideus)
buttercup, Labrador (Ranunculus rhomboideus)
butterfly milkweed (Asclepias tuberosa)
butterfly weed (Asclepias tuberosa)
button eryngo (Eryngium yuccifolium)

C

cactus, brittle prickly pear (Opuntia fragilis)
cactus, common prickly pear (Opuntia humifusa)
cactus, fragile prickly pear (Opuntia fragilis)
cactus, plains prickly pear (Opuntia macrorhiza)
camas, Atlantic (Camassia scilloides)
Canada lousewort (Pedicularis canadensis)
Canada thistle (Cirsium arvense)
Canada wild rye (Elymus canadensis)
Canadagoldendrod (Solidago canadensis)
Canadian horseweed (Conyza canadensis)
Canadian milk vetch (Astragalus canadensis)
Carolina anemone (Anemone caroliniana)
Carolina rose (Rosa carolina)
carrot, wild (Daucus carota)
catchfly, royal (Silene regia)
chicory (Cichorium intybus)
chigger weed (Asclepias tuberosa)
cinquefoil, common (Potentilla simplex )
cinquefoil, marsh (Potentilla palustis )
cinquefoil, old field (Potentilla simplex )
cinquefoil, prairie (Potentilla arguta)
cinquefoil, shrubby (Potentilla fruticosa )
cinquefoil, silverweed (Potentilla anserina)
cinquefoil, silvery (Potentilla argentea )
cinquefoil, sulphur (Potentilla recta )
cinquefoil, tall (Potentilla arguta)
cinquefoil, three-toothed (Potentilla tridentata )
clasping milkweed (Asclepias amplexicaulis)
claspingleaf doll's daisy (Boltoinia decurrens)
cleft phlox (Phlox bifida)
closed bottle gentian (Gentiana andrewsii)
clover, buffalo (Trifolium reflexum)
clover, leafy prairie (Dalea foliosa)
clover, prairie bush (Lespedeza leptostachya)
clover, purple prairie (Dalea purpurea)
clover, round-headed bush (Lespedeza capitata)
clover, white prairie (Dalea candida)
clover, white sweet (Melilotus alba)
clover, yellow sweet (Melilotus officinalis)
clover. prairie bush (Lespedeza leptostachya)
colic root (Aletris farinosa)
columbine, wild (Aquilegia canadensis)
comet green milkweed, comet (Asclepias viridiflora)
common boneset (Eupatorium perfoliatum)
common cinquefoil (Potentilla simplex )
common ironweed (Vernonia fasciculata)
common milkweed (Asclepias syriaca)
common prickly pear cactus (Opuntia humifusa)
common sneezeweed (Helenium autumnale)
common teasel (Dipsacus sylvestris)
compass plant (Silphium laciniatum)
coneflower, drooping (Ratibida pinnata)
coneflower, fragrant (Rudbeckia subtomentosa)
coneflower, gray-headed (Ratibida pinnata)
coneflower, pale (Echinacea pallida)
coneflower, pinnate prairie (Ratibida pinnata)
coneflower, purple (Echinacea purpurea)
coneflower, sweet (Rudbeckia subtomentosa)
coneflower, yellow (Ratibida pinnata)
cord grass, prairie (Spartina pectinata)
coreopsis, prairie (Coreopsis palmata)
coreopsis, sand (Coreopsis lanceolata)
coreopsis, tall (Coreopsis tripteris)
cream wild indigo (Baptisia leucophaea)
crown vetch (Coronilla varia)
crownbeard, yellow (Verbesina helianthoides)
Culver's root (Veronicastrum virginicum)
cup plant (Silphium perfoliatum)
cut-leaf teasel (Dipsacus laciniatus)
cylindric blazing star (Liatris cylindracea)
cypress spruge (Euphorbia cyparissias)

D

daisy fleabane (Erigeron strigosus)
daisy, clasping doll's (Boltoinia decurrens)
daisy, eastern fournerved (Hymenoxys acaulis)
daisy, lakeside (Hymenoxys acaulis)
daisy, white doll's (Boltoinia asteroides)
dandelion, dwarf (Krigia virginica)
dandelion, false (Krigia biflora)
dawnflower (Stylisma pickeringii subsp. pattersonii)
dawnflower, Patterson's (Stylisma pickeringii subsp. pattersonii)
dayflower (Commelina erecta)
dayflower, narrow-leaved (Commelina erecta)
dayflower, whitemouth (Commelina erecta)
daylily, orange (Hemerocallis fulva)
decurrent false aster (Boltoinia decurrens)
dock, prairie (Silphium terebinthinaceum)
dog-tooth-violet, prairie (Erythronium mesochoreum)
doll's daisy, claspingleaf (Boltoinia decurrens)
doll's daisy, white (Boltoinia asteroides)
downy gentian (Gentiana puberulenta)
downy pagoda plant (Blephilia ciliata)
downy phlox (Phlox pilosa)
downy sunflower (Helianthus mollis)
downy yellow painted cup (Castilleja sessiliflora)
dragonhead, false (Physostegia virginiana)
drooping coneflower (Ratibida pinnata)
dropseed, prairie dropseed (Sporobolus heterolepis)
dwarf dandelion (Krigia virginica)
dwarfdandelion, twoflower (Krigia biflora)
dwarfdandelion, Virginia (Krigia virginica)

E

eastern fournerved daisy (Hymenoxys acaulis)
eastern prairie fringed orchid (Platanthera leucophaea)
eryngo, button (Eryngium yuccifolium)
everlasting, sweet (Gnaphalium obtusifolium)

F

false aster (Boltoinia asteroides)
false aster, decurrent (Boltoinia decurrens)
false dandelion (Koeleria macrantha)
false dragonhead (Physostegia virginiana)
false foxglove, pale (Agalinis skinneriana)
false goldenaster, lemon yellow (Heterotheca camporum)
false heather (Hudsonia tomentosa)
false indigo (Amorpha fruticosa)
false lily-of-the-valley, starry (Smilacina stellata)
false Solomon's seal, starry (Smilacina stellata)
false sunflower (Heliopsis helianthoides)
false toadflax (Comandra umbellata)
fawnlily, midland (Erythronium mesochoreum)
fen thistle (Cirsium muticum)
feverfew, American (Parthenium integrifolium)
fewleaf sunflower (Helianthus occidentalis)
field milkwort (Polygala sanguinea)
field thistle (Cirsium discolor)
fire-on-the-mountain (Euphorbia heterophylla)
flat-top aster (Aster umbellatus)
flat-topped goldentop (Solidago graminifolia)
flax, grooved yellow (Linum sulcatum)
flax-leaved aster (Aster linariifolius)
fleabane, daisy (Erigeron strigosus)
fleabane, prairie (Elymus strigosus)
flower, bunch (Melanthium virginicum)
flower, pasque (Anemone patens)
flowering spruge (Euphorbia corollata)
foothill bladderpod (Lesquerella ludoviciana)
four o'clock, hairy (Mirabilis hirsuta)
fournerved daisy, eastern (Hymenoxys acaulis)
foxglove beardstongue (Penstemon digitalis)
foxglove, pale false (Agalinis skinneriana)
fragile prickly pear cactus (Opuntia fragilis)
fragrant coneflower (Rudbeckia subtomentosa)
fringed gentian, greater (Gentiana crinata)
fringed gentian, lesser (Gentiana procera)
fringed gentian, small (Gentiana procera)
fringed orchid, prairie white (Platanthera leucophaea)
fringed puccoon (Lithospermum incisum)

G

gentian, closed bottle (Gentiana andrewsii)
gentian, downy (Gentiana puberulenta)
gentian, greater fringed (Gentiana crinata)
gentian, lesser fringed (Gentiana procera)
gentian, plain (Gentiana alba)
gentian, small fringed (Gentiana procera)
gentian, soapwort bottle (Gentiana saponaria)
gentian, stiff (Gentiana quinquefolia)
gentian, yellow (Gentiana alba)
geranium, spotted (Geranium maculatum)
geranium, wild (Geranium maculatum)
giant ragweed (Ambrosia trifida)
glade mallow (Napaea dioica)
goat's rue (Tephrosia virginiana)
golden Alexanders (Zizia aurea)
golden aster (Heterotheca camporum)
golden aster, lemon yellow false (Heterotheca camporum)
golden aster, prairie (Chrysopsis camporum)
golden zizia (Zizia aurea)
goldendrod, Canada (Solidago canadensis)
goldendrod, tall (Solidago canadensis)
goldenrod, bog (Solidago uliginosa)
goldenrod, grass-leaved (Solidago graminifolia)
goldenrod, gray (Solidago nemoralis)
goldenrod, Ohio (Solidago ohioensis)
goldenrod, old-field (Solidago nemoralis)
goldenrod, prairie (Solidago ptarmicoides)
goldenrod, Riddell's (Solidago riddellii)
goldenrod, rigid (Solidago rigida)
goldenrod, showy (Solidago speciosa)
goldenrod, stiff (Solidago rigida)
goldenrod, white goldenrod (Solidago ptarmicoides)
goldentop, flat-topped (Solidago graminifolia)
grama, blue (Bouteloua gracilis)
grama, side-oats (Bouteloua curtipendula)
grass, Indian (Sorghastrum nutans)
grass, needle (Stipa spartea)
grass, porcupine (Stipa spartea)
grass, prairie cord (Spartina pectinata)
grass, sweet (Hierochloë odorata)
grass, switch (Panicum virgatum)
grass, vanilla (Hierochloë odorata)
grass-leaved goldenrod (Solidago graminifolia)
grasspink orchid (Calopogon tuberosus)
grasspink orchid, Oklahoma (Calopogon oklahomensis)
gray goldenrod (Solidago nemoralis)
gray-headed coneflower (Ratibida pinnata)
greater fringed gentian (Gentiana crinata)
green antelopehorn milkweed (Asclepias viridis)
green comet milkweed (Asclepias viridiflora)
green milkweed, narrow-leaved (Asclepias stenophylla)
green milkweed, short (Asclepias viridiflora)
green milkweed, tall (Asclepias hirtella)
green-flowered milkweed (Asclepias viridis)
grooved yellow flax (Linum sulcatum)
groovestem Indian plantain (Cacalia plantaginea)
ground-plum, large (Astragalus crassicarpus)

H

hairy four o'clock (Mirabilis hirsuta)
hairy puccoon (Lithospermum croceum)
hairy umbrella-wort (Mirabilis hirsuta)
harvestbells (Gentiana saponaria)
heath aster (Aster ericoides)
heather, false (Hudsonia tomentosa)
heather, woolly beach (Hudsonia tomentosa)
heart-leaved meadow parsnip (Zizia aptera)
Hill's thistle (Cirsium hillii)
hoary pea (Tephrosia virginiana)
hoary puccoon (Lithospermum canescens)
hollyhock, streambank wild (Iliamna remota)
horse mint, Ohio (Blephilia ciliata)
horsemint (Monarda punctata)
horsetail milkweed (Asclepias verticillata)
horseweed (Conyza canadensis)
horseweed, Canadian (Conyza canadensis)
hyacinth, wild (Camassia scilloides)

I

Illinois mimosa (Desmanthus illinoensis)
Illinois tick trefoil (Desmodium illinoense)
Indian grass (Sorghastrum nutans)
Indian paintbrush (Castilleja coccinea)
Indian paintbrush, scarlet (Castilleja coccinea)
Indian plantain, groovestem (Cacalia plantaginea)
Indian plantain, pale (Cacalia atriplicifolia)
Indian plantain, prairie (Cacalia plantaginea)
indigo, cream wild (Baptisia leucophaea)
indigo, false (Amorpha fruticosa)
indigo, large-leaf wild (Baptisia leucantha)
indigo, white wild (Baptisia leucantha)
ironweed, common (Vernonia fasciculata)
ironweed, Missouri (Vernonia missurica)
ironweed, prairie (Vernonia fasciculata)

J

Joe-Pye weed (Eupatorium maculatum)
June grass (Koeleria macrantha)
Junegrass, prairie (Koeleria macrantha)

I

Kankakee mallow (Iliamna remota)

L

Labrador buttercup (Ranunculus rhomboideus)
lady's slipper orchid, white (Cypripedium candidum)
lakeside daisy (Hymenoxys acaulis)
lance-leafed violet (Viola lanceolata)
lanceleaf tickseed (Coreopsis lanceolata)
large ground-plum (Astragalus crassicarpus)
large-leaf wild indigo (Baptisia leucantha)
late boneset (Eupatorium serotinum)
lateflowering thoroughwort (Eupatorium serotinum)
lead plant (Amorpha canescens)
leafy prairie clover (Dalea foliosa)
lemon yellow false goldenaster (Heterotheca camporum)
lespedeza, prairie (Lespedeza leptostachya)
lespedeza, roundhead (Lespedeza capitata)
lesser fringed gentian (Gentiana procera)
lettuce, rough white (Prenanthes aspera)
lily, prairie (Lilium philadelphicum var. andinum)
lily, wood (Lilium philadelphicum var. andinum)
lily-of-the-valley, starry false (Smilacina stellata)
little bluestem (Schizachyrium scoparium)
lousewort, Canada (Pedicularis canadensis)
lousewort, swamp (Pedicularis lanceolata)
lupine, sundial (Lupinus perennis)
lupine, wild (Lupinus perennis)

M

mallow, glade (Napaea dioica)
mallow, Kankakee (Iliamna remota)
marsh blazing star (Liatris spicata)
marsh cinquefoil (Potentilla palustis )
marsh phlox (Phlox glaberrima var. interior)
marshlocks, purple (Potentilla palustis )
master, rattlesnake (Eryngium yuccifolium)
Mead's milkweed (Asclepias meadii)
meadow parsnip, heart-leaved (Zizia aptera)
meadow zizia (Zizia aptera)
midland fawnlily (Erythronium mesochoreum)
milk vetch , Canadian (Astragalus canadensis)
milkweed, butterfly (Asclepias tuberosa)
milkweed, clasping (Asclepias amplexicaulis)
milkweed, comet green (Asclepias viridiflora)
milkweed, common (Asclepias syriaca)
milkweed, green (Asclepias hirtella)
milkweed, green comet (Asclepias viridiflora)
milkweed, green-flowered (Asclepias viridis)
milkweed, horsetail (Asclepias verticillata)
milkweed, Mead's (Asclepias meadii)
milkweed, narrow-leaved green (Asclepias stenophylla)
milkweed, prairie (Asclepias sullivantii)
milkweed, sand (Asclepias amplexicaulis)
milkweed, short green (Asclepias viridiflora)
milkweed, Sullivant's (Asclepias sullivantii)
milkweed, swamp (Asclepias incarnata)
milkweed, tall green (Asclepias hirtella)
milkweed, whorled (Asclepias verticillata)
milkwort, field (Polygala sanguinea)
milkwort, purple (Polygala polygama)
milkwort, whorled (Polygala verticillata)
mimosa, Illinois (Desmanthus illinoensis)
mint, Ohio horse (Blephilia ciliata)
Missouri ironweed (Vernonia missurica)
multiflora rose (Rosa multiflora)

N

narrow-leaved dayflower (Commelina erecta)
narrow-leaved milkweed (Asclepias stenophylla)
narrow-leaved sunflower (Helianthus angustifolius)
needle grass (Stipa spartea)
New England aster (Aster novae-angliae)
New Jersey tea (Ceanothus americanus)
nodding onion (Allium cernuum)
northern blue violet (Viola nephrophylla)
northern bog violet (Viola nephrophylla)

O

obedient plant (Physostegia virginiana)
Ohio goldenrod (Solidago ohioensis)
Ohio horse mint (Blephilia ciliata)
Ohio spiderwort (Tradescantia ohiensis)
Oklahoma grasspink orchid (Calopogon oklahomensis)
old man's whiskers (Geum triflorum)
old-field balsam (Gnaphalium obtusifolium)
old-field cinquefoil (Potentilla simplex )
old-field goldenrod (Solidago nemoralis)
onion, nodding (Allium cernuum)
orange daylily (Hemerocallis fulva)
orchid, eastern prairie fringed (Platanthera leucophaea)
orchid, grasspink (Calopogon tuberosus)
orchid, Oklahoma grasspink (Calopogon oklahomensis)
orchid, pale green pale green orchid (Plananthera flava var. herbiola)
orchid, prairie white fringed (Platanthera leucophaea)
orchid, tuberculed (Plananthera flava var. herbiola)
orchid, white lady's slipper (Cypripedium candidum)
oxeye, smooth (Heliopsis helianthoides)

P

pagoda plant (Blephilia ciliata)
pagoda plant, downy (Blephilia ciliata)
paintbrush, Indian (Castilleja coccinea)
paintbrush, scarlet Indian (Castilleja coccinea)
painted cup, downy yellow (Castilleja sessiliflora)
painted spurge (Euphorbia heterophylla)
pale beardstongue (Penstemon pallidus)
pale coneflower (Echinacea pallida)
pale false foxglove (Agalinis skinneriana)
pale green orchid (Plananthera flava var. herbiola)
pale Indian plantain (Cacalia atriplicifolia)
parsnip, heart-leaved meadow (Zizia aptera)
parsnip, wild (Pastinaca sativa)
partridge pea (Cassia fasciculata)
Pasque flower (Anemone patens)
pasture rose (Rosa carolina)
pasture thistle (Cirsium discolor)
Patterson's bindweed (Stylisma pickeringii subsp. pattersonii)
pea, hoary (Tephrosia virginiana)
pea, partridge (Cassia fasciculata)
perfoliate boneset (Eupatorium perfoliatum)
petunia, wild (Ruellia humilis)
phlox, cleft (Phlox bifida)
phlox, downy (Phlox pilosa)
phlox, marsh (Phlox glaberrima var. interior)
phlox, prairie (Phlox pilosa)
phlox, sand (Phlox bifida)
phlox, Sangamon (Phlox pilosa subsp. sangamonensis)
phlox, smooth (Phlox glaberrima var. interior)
pinnate prairie coneflower (Ratibida pinnata)
pitcher plant, purple (Sarracenia purpurea)
plain gentian (Gentiana alba)
plains buttercup (Ranunculus rhomboideus)
plains prickly pear cactus (Opuntia macrorhiza)
plant, compass (Silphium laciniatum)
plant, cup (Silphium perfoliatum)
plant, downy pagoda (Blephilia ciliata)
plant, lead (Amorpha canescens)
plant, obedient (Physostegia virginiana)
plant, pagoda (Blephilia ciliata)
plant, purple pitcher (Sarracenia purpurea)
plantain, groovestem Indian (Cacalia plantaginea)
plantain, pale Indian (Cacalia atriplicifolia)
plantain, prairie Indian (Cacalia plantaginea)
poinsettia, wild (Euphorbia dentata)
poinsettia, wild (Euphorbia heterophylla)
porcupine grass (Stipa spartea)
prairie blazing star (Liatris pycnostachya)
prairie bundleflower (Desmanthus illinoensis)
prairie bush clover (Lespedeza leptostachya)
prairie buttercup (Ranunculus rhomboideus)
prairie cinquefoil (Potentilla arguta)
prairie cinquefoil (Potentilla arguta)
prairie clover, leafy (Dalea foliosa)
prairie clover, white (Dalea candida)
prairie clover. purple (Dalea purpurea)
prairie coneflower, pinnate (Ratibida pinnata)
prairie cord grass (Spartina pectinata)
prairie coreopsis (Coreopsis palmata)
prairie dock (Silphium terebinthinaceum)
prairie dog-tooth-violet (Erythronium mesochoreum)
prairie dropseed (Sporobolus heterolepis)
prairie fleabane (Elymus strigosus)
prairie fringed orchid, eastern (Platanthera leucophaea)
prairie golden aster (Chrysopsis camporum)
prairie Indian plantain (Cacalia plantaginea)
prairie ironweed (Vernonia fasciculata)
prairie Junegrass (Koeleria macrantha)
prairie lespedeza (Lespedeza leptostachya)
prairie lily (Lilium philadelphicum var. andinum)
prairie milkweed (Asclepias sullivantii)
prairie phlox (Phlox pilosa)
prairie rose (Rosa setigera)
prairie rosinweed (Silphium terebinthinaceum)
prairie smoke (Geum triflorum)
prairie troutlily (Erythronium mesochoreum)
prairie violet (Viola pedatifida)
prairie white fringed orchid (Platanthera leucophaea)
prairie willow (Salix humilis)
prairie, Queen-of-the (Filipendula rubra)
prickly pear cactus, brittle (Opuntia fragilis)
prickly pear cactus, common (Opuntia humifusa)
prickly pear cactus, fragile (Opuntia fragilis)
prickly pear cactus, plains (Opuntia macrorhiza)
puccoon, fringed (Lithospermum incisum)
puccoon, hoary (Lithospermum canescens)
puccoon, sand (Lithospermum croceum)
puncture vine (Tribulus terrestris)
puncture weed (Tribulus terrestris)
purple coneflower (Echinacea purpurea)
purple marshlocks (Potentilla palustis )
purple milkwort (Polygala polygama)
purple pitcher plant (Sarracenia purpurea)
purple prairie clover (Dalea purpurea)
purple wood sorrel (Oxalis violacea)
pussy-toes (Antennaria plantaginifolia)

Q

Queen Anne's lace (Daucus carota)
Queen-of-the-prairie (Filipendula rubra)
quinine, wild (Parthenium integrifolium)

R

rabbit tobacco (Gnaphalium obtusifolium)
ragweed, giant (Ambrosia trifida)
rattlebox (Crotalaria sagittalis)
rattlebox, arrowhead (Crotalaria sagittalis)
rattlesnake master (Eryngium yuccifolium)
rattlesnakeroot, rough (Prenanthes aspera)
redroot (Ceanothus herbaceus)
Riddell's goldenrod (Solidago riddellii)
rigid goldenrod (Solidago rigida)
rocket, American sea (Cakile edulenta)
root, colic (Aletris farinosa)
root, Culver's (Veronicastrum virginicum)
rose, Carolina (Rosa carolina)
rose, multiflora (Rosa multiflora)
rose, pasture (Rosa carolina)
rose, prairie (Rosa setigera)
rosin weed (Silphium integrifolium)
rosinweed, prairie (Silphium terebinthinaceum)
rough blazing star (Liatris aspera)
rough rattlesnakeroot (Prenanthes aspera)
rough white lettuce (Prenanthes aspera)
round-headed bush clover (Lespedeza capitata)
roundhead lespedeza (Lespedeza capitata)
royal catchfly (Silene regia)
rue, goat's (Tephrosia virginiana)
rye, Canada wild (Elymus canadensis)

S

sand coreopsis (Coreopsis lanceolata)
sand milkweed (Asclepias amplexicaulis)
sand phlox (Phlox bifida)
sand puccoon (Lithospermum croceum)
Sangamon phlox (Phlox pilosa subsp. sangamonensis)
savanna blazing star (Liatris scariosa var. nieuwlandii)
sawtooth sunflower (Helianthus grosseserratus)
scarlet Indian paintbrush (Castilleja coccinea)
scurfpea (Psoralea tenuiflorum)
scurfpea, slimflower (Psoralea tenuiflorum)
sea rocket, American (Cakile edulenta)
sedge, shaved (Carex tonsa)
shaved sedge (Carex tonsa)
shooting star (Dodecatheon meadia)
short green milkweed (Asclepias viridiflora)
Short's aster (Aster shortii)
showy goldenrod (Solidago speciosa)
showy tick trefoil (Desmodium canadense)
shrubby cinquefoil (Potentilla fruticosa )
side-oats grama (Bouteloua curtipendula)
silky aster (Aster sericeus)
silverweed (Potentilla anserina)
silverweed cinquefoil (Potentilla anserina)
silvery bladderpod (Lesquerella ludoviciana)
silvery cinquefoil (Potentilla argentea )
sky-blue aster (Aster azureus)
sleepingplant (Cassia fasciculata)
slimflower scurfpea (Psoralea tenuiflorum)
small fringed gentian (Gentiana procera)
smoke, prairie (Geum triflorum)
smooth aster (Aster laevis)
smooth blue aster (Aster laevis)
smooth oxeye (Heliopsis helianthoides)
smooth phlox (Phlox glaberrima var. interior)
sneezeweed, common (Helenium autumnale)
sneezeweed, yellow (Helenium autumnale)
snow-on-the-mountain (Euphorbia marginata)
soapwort bottle gentian (Gentiana saponaria)
Solomon's seal, starry false (Smilacina stellata)
sorrel, purple wood (Oxalis violacea)
sorrel, violet wood (Oxalis violacea)
spiderwort, Ohio (Tradescantia ohiensis)
spotted beebalm (Monarda punctata)
spotted geranium (Geranium maculatum)
spotted Joe-Pye weed (Eupatorium maculatum)
spring beauty (Claytonia virginica)
springbeauty, Virginia (Claytonia virginica)
spruge, cypress (Euphorbia cyparissias)
spruge, flowering (Euphorbia corollata)
spurge, painted (Euphorbia heterophylla)
spurge, toothed (Euphorbia dentata)
starry false lily-of-the-valley (Smilacina stellata)
starry false Solomon's seal (Smilacina stellata)
stiff aster (Solidago ptarmicoides)
stiff gentian (Gentiana quinquefolia)
stiff goldenrod (Solidago rigida)
stiff tickseed (Coreopsis palmata)
strawberry, Virginia (Fragaria virginiana)
strawberry, wild (Fragaria virginiana)
strawberry, woodland (Fragaria vesca subsp. americana)
streambank wild hollyhock (Iliamna remota)
Sullivant's milkweed (Asclepias sullivantii)
sulphur cinquefoil (Potentilla recta )
sundial lupine (Lupinus perennis)
sunflower, ashy (Helianthus mollis)
sunflower, downy (Helianthus mollis)
sunflower, false (Heliopsis helianthoides)
sunflower, fewleaf (Helianthus occidentalis)
sunflower, narrow-leaved (Helianthus angustifolius)
sunflower, sawtooth (Helianthus grosseserratus)
sunflower, swamp (Helianthus angustifolius)
sunflower, western (Helianthus occidentalis)
Susan, black-eyed (Rudbeckia hirta)
Susan, black-eyed sweet (Rudbeckia subtomentosa)
Susan, brown-eyed (Rudbeckia triloba)
swamp lousewort (Pedicularis lanceolata)
swamp milkweed (Asclepias incarnata)
swamp sunflower (Helianthus angustifolius)
swamp thistle (Cirsium muticum)
swamp wood betony (Pedicularis lanceolata)
sweet black-eyed Susan (Rudbeckia subtomentosa)
sweet clover, white (Melilotus alba)
sweet clover, yellow (Melilotus officinalis)
sweet coneflower (Rudbeckia subtomentosa)
sweet everlasting (Gnaphalium obtusifolium)
sweet grass (Hierochloë odorata)
switch grass (Panicum virgatum)

T

tall blazing star (Liatris aspera)
tall boneset (Eupatorium altissimum)
tall coreopsis (Coreopsis tripteris)
tall goldendrod (Solidago canadensis)
tall green milkweed (Asclepias hirtella)
tall thoroughwort (Eupatorium altissimum)
tall tickseed (Coreopsis tripteris)
tea, New Jersey (Ceanothus americanus)
teasel, common (Dipsacus sylvestris)
teasel, cut-leaf (Dipsacus laciniatus)
tephrosia, Virginia (Tephrosia virginiana)
thimbleweed (Anemone cylindrica)
thistle, Canada (Cirsium arvense)
thistle, fen (Cirsium muticum)
thistle, field (Cirsium discolor)
thistle, Hill's (Cirsium hillii)
thistle, pasture (Cirsium discolor)
thistle, swamp (Cirsium muticum)
thoroughwort, lateflowering (Eupatorium serotinum)
thoroughwort, tall (Eupatorium altissimum)
tick trefoil, Illinois (Desmodium illinoense)
tick trefoil, showy (Desmodium canadense)
tickseed, lanceleaf (Coreopsis lanceolata)
tickseed, stiff (Coreopsis palmata)
tickseed, tall (Coreopsis tripteris)
toadflax, bastard (Comandra umbellata)
toadflax, false (Comandra umbellata)
tobacco, rabbit (Gnaphalium obtusifolium)
toes, pussy (Antennaria plantaginifolia)
toothed spurge (Euphorbia dentata)
three-toothed cinquefoil (Potentilla tridentata )
trefoil, Illinois tick (Desmodium illinoense)
trefoil, showy tick (Desmodium canadense)
troutlily, prairie (Erythronium mesochoreum)
tuberculed orchid (Plananthera flava var. herbiola)
twoflower dwarfdandelion (Krigia biflora)

U

umbrella-wort, hairy (Mirabilis hirsuta)

V

vanilla grass (Hierochloë odorata)
vetch, Canadian milk (Astragalus canadensis)
vetch, crown (Coronilla varia)
vine, puncture (Tribulus terrestris)
violet wood sorrel (Oxalis violacea)
violet, bird's foot (Viola pedata)
violet, bog white (Viola lanceolata)
violet, lance-leafed (Viola lanceolata)
violet, northern blue (Viola nephrophylla)
violet, northern bog (Viola nephrophylla)
violet, prairie (Viola pedatifida)
Virginia bunchflower (Melanthium virginicum)
Virginia dwarfdandelion (Krigia virginica)
Virginia springbeauty (Claytonia virginica)
Virginia strawberry (Fragaria virginiana)
Virginia tephrosia (Tephrosia virginiana)

W

weed, butterfly (Asclepias tuberosa)
weed, chigger (Asclepias tuberosa)
weed, puncture (Tribulus terrestris)
weed, rosin (Silphium integrifolium)
western sunflower (Helianthus occidentalis)
white avens (Geum canadense)
white doll's daisy (Boltoinia asteroides)
white fringed orchid,Prairie (Platanthera leucophaea)
white goldenrod (Solidago ptarmicoides)
white lady's slipper orchid (Cypripedium candidum)
white lettuce, rough (Prenanthes aspera)
white prairie clover (Dalea candida)
white sweet clover (Melilotus alba)
white wild indigo (Baptisia leucantha)
whitemouth dayflower (Commelina erecta)
whorled milkweed (Asclepias verticillata)
whorled milkwort (Polygala verticillata)
wild asparagus (Asparagus officinalis)
wild bergamot (Monarda fistulosa)
wild carrot (Daucus carota)
wild columbine (Aquilegia canadensis)
wild geranium (Geranium maculatum)
wild hollyhock, streambank (Iliamna remota)
wild hyacinth (Camassia scilloides)
wild indigo, cream (Baptisia leucophaea)
wild indigo, large-leaf (Baptisia leucantha)
wild indigo, white (Baptisia leucantha)
wild lupine (Lupinus perennis)
wild parsnip (Pastinaca sativa)
wild petunia (Ruellia humilis)
wild poinsettia (Euphorbia dentata)
wild poinsettia (Euphorbia heterophylla)
wild quinine (Parthenium integrifolium)
wild rye, Canada (Elymus canadensis)
wild strawberry (Fragaria virginiana)
willow, prairie (Salix humilis)
wingstem, yellow (Verbesina helianthoides)
wood avens (Geum canadense)
wood betony (Pedicularis canadensis)
wood betony, swamp (Pedicularis lanceolata)
wood lily (Lilium philadelphicum var. andinum)
wood sorrel, purple (Oxalis violacea)
wood sorrel, violet (Oxalis violacea)
woodland strawberry (Fragaria vesca subsp. americana)
woolly beach heather (Hudsonia tomentosa)

Y

yellow coneflower (Ratibida pinnata)
yellow crownbeard (Verbesina helianthoides)
yellow flax, grooved (Linum sulcatum)
yellow gentian (Gentiana alba)
yellow painted cup, downy (Castilleja sessiliflora)
yellow sneezeweed (Helenium autumnale)
yellow sweet clover (Melilotus officinalis)
yellow wingstem (Verbesina helianthoides)

Z

zizia, golden (Zizia aurea)
zizia, meadow (Zizia aptera)



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