| Acalypha rhomboidea |
THREE-SEEDED MERCURY |
| Acer negundo |
ASH-LEAVED MAPLE |
| Acer nigrum |
BLACK MAPLE |
| Acer saccharinum |
RIVER MAPLE |
| Acer saccharum |
HARD MAPLE |
| Achillea millefolium |
COMMON MILFOIL |
| Actaea pachypoda |
DOLL'S-EYES |
| Adiantum pedatum |
MAIDENHAIR FERN |
| Aesculus glabra |
OHIO BUCKEYE |
| Agalinis tenuifolia |
SLENDER FALSE FOXGLOVE |
| Agastache scrophulariaefolia |
PURPLE GIANT HYSSOP |
| Agrimonia pubescens |
SOFT AGRIMONY |
| Agropyron repens |
COUCH GRASS |
| Agrostis alba |
RED TOP |
| Alisma plantago aquatica parviflorum |
COMMON WATER PLANTAIN |
| Alisma plantago-aquatica americanam |
AMERICAN WATER PLANTAIN |
| Allium canadense |
WILD GARLIC |
| Allium tricoccum |
RAMP |
| Allium vineale |
FIELD GARLIC |
| Amaranthus albus |
TUMBLEWEED |
| Amaranthus retroflexus |
ROUGH PIGWEED |
| Amaranthus tuberculatus |
TALL WATERHEMP |
| Ambrosia artemisiifolia |
BITTERWEED |
| Ambrosia trifida |
BUFFALO WEED |
| Ammannia coccinea |
LONG-LEAVED AMMANNIA |
| Amorpha canescens |
LEAD PLANT |
| Amorpha fruticosa |
FALSE INDIGO BUSH |
| Amphicarpa bracteata |
HOG PEANUT |
| Amphicarpa bracteata comosa |
HOG PEANUT |
| Andropogon gerardii |
BIG BLUESTEM |
| Andropogon hallii |
SAND BLUESTEM |
| Androsace occidentalis |
ANDROSACE |
| Anemone canadensis |
MEADOW ANEMONE |
| Anemone cylindrica |
CANDLE ANEMONE |
| Anemone virginiana |
TALL ANEMONE |
| Angelica atropurpurea |
ANGELICA |
| Antennaria plantaginifolia |
EVERLASTING |
| Anthemis cotula |
DOG FENNEL |
| Apios americana |
GROUNDNUT |
| Apocynum cannabinum |
DOGBANE |
| Apocynum sibiricum |
INDIAN HEMP |
| Aquilegia canadensis |
COLUMBINE |
| Arabis canadensis |
SICKLEPOD |
| Arabis shortii |
TOOTHED CRESS |
| Aralia racemosa |
AMERICAN SPIKENARD |
| Arctium minus |
COMMON BURDOCK |
| Arisaema dracontium |
GREEN DRAGON |
| Arisaema triphyllum |
INDIAN TURNIP |
| Aristida oligantha |
PLAINS THREE AWN GRASS |
| Armoracia rusticana |
HORSERADISH |
| Artemisia serrata |
SAW-TOOTHED SAGEBRUSH |
| Asarum canadense reflexum |
CANADA WILD GINGER |
| Asclepias amplexicaulis |
SAND MILKWEED |
| Asclepias incarnata |
SWAMP MILKWEED |
| Asclepias syriaca |
COMMON MILKWEED |
| Asclepias verticillata |
HORSETAIL MILKWEED |
| Asparagus officinalis |
GARDEN ASPARAGUS |
| Aster drummondii |
DRUMMOND'S ASTER |
| Aster ericoides |
HEATH ASTER |
| Aster laevis |
SMOOTH ASTER |
| Aster lateriflorus |
SIDE-FLOWERED ASTER |
| Aster novae-angliae |
NEW ENGLAND ASTER |
| Aster pilosus |
HAIRY ASTER |
| Aster praealtus |
WILLOW-LEAVED ASTER |
| Aster puniceus |
SWAMP ASTER |
| Aster sagittifolius |
ARROW ASTER |
| Aster shortii |
SHORT'S ASTER |
| Athyrium angustum |
LADY FERN |
| Atriplex patula |
FAT-HEN SALTBUSH |
| Aureolaria grandiflora pulchra |
YELLOW FALSE FOXGLOVE |
| Barbarea vulgaris arcuata |
WINTER CRESS |
| Berteroa incana |
HOARY ALYSSUM |
| Bidens bipinnata |
SPANISH NEEDLES |
| Bidens cernua |
NODDING BEGGAR-TICKS |
| Bidens discoidea |
STICKTIGHT |
| Bidens frondosa |
COMMON BEGGAR-TICKS |
| Bidens vulgata |
STICKTIGHT |
| Boehmeria cylindrica |
FALSE NETTLE |
| Botrychium virginianum |
RATTLESNAKE FERN |
| Brachyelytrum erectum |
LONG-AWNED WOOD GRASS |
| Brassica nigra |
BLACK MUSTARD |
| Brickellia eupatorioides |
FALSE BONESET |
| Bromus commutatus |
HAIRY BROME |
| Bromus inermis |
AWNLESS BROME GRASS |
| Bromus tectorum |
CHEAT GRASS BROME |
| Buglossoides arvense |
CORN GROMWELL |
| Calamagrostis canadensis |
BLUEJOINT GRASS |
| Callirhoe triangulata |
POPPY MALLOW |
| Calystegia sepium americana |
AMERICAN BINDWEED |
| Campanula americana |
AMERICAN BELLFLOWER |
| Cannabis sativa |
HASHISH |
| Capsella bursa-pastoris |
SHEPERD'S-PURSE |
| Cardaria draba |
HOARY CRESS |
| Carex aggregata |
|
| Carex albursina |
SEDGE |
| Carex blanda |
WOODLAND SEDGE |
| Carex comosa |
BRISTLY SEDGE |
| Carex conjuncta |
|
| Carex convoluta |
|
| Carex cristatella |
SEDGE |
| Carex davisii |
DAVIS SEDGE |
| Carex granularis |
MEADOW SEDGE |
| Carex gravida |
HEAVY SEDGE |
| Carex lurida |
SEDGE |
| Carex normalis |
SEDGE |
| Carex pensylvanica |
PENNSYLVANIA SEDGE |
| Carex scoparia |
BROOM SEDGE |
| Carex sparganioides |
|
| Carex trichocarpa |
SEDGE |
| Carex vulpinoidea |
FOX SEDGE |
| Carya cordiformis |
BITTERNUT HICKORY |
| Carya ovata |
SCALY-BARK HICKORY |
| Cassia marilandica |
MARYLAND SENNA |
| Caulophyllum thalictroides |
BLUE COHOSH |
| Ceanothus americanus |
NEW JERSEY TEA |
| Celastrus scandens |
BITTERSWEET |
| Celtis occidentalis |
HACKBERRY |
| Celtis occidentalis canina |
HACKBERRY |
| Cenchrus longispinus |
MAT SANDBUR |
| Cephalanthus occidentalis |
BUTTONBUSH |
| Cerastium vulgatum |
COMMON MOUSE-EAR CHICKWEED |
| Cercis canadensis |
EASTERN REDBUD |
| Chamaesyce maculata |
NODDING SPURGE |
| Chamaesyce supina |
MILK SPURGE |
| Chenopodium album |
LAMB'S QUARTERS |
| Cichorium intybus |
BLUE SAILORS |
| Cicuta maculata |
WATER HEMLOCK |
| Cinna arundinacea |
STOUTWOOD REED |
| Circaea lutetiana canadensis |
ENCHANTER'S NIGHTSHADE |
| Cirsium altissimum |
TALL THISTLE |
| Cirsium discolor |
FIELD THISTLE |
| Cirsium vulgare |
BULL THISTLE |
| Claytonia virginica |
SPRING BEAUTY |
| Collinsia verna |
BLUE-EYED MARY |
| Comandra umbellata |
BASTARD TOAD-FLAX |
| Conium maculatum |
POISON HEMLOCK |
| Conopholis americana |
CANCER-ROOT |
| Convolvulus arvensis |
FIELD BINDWEED |
| Conyza canadensis |
HORSEWEED |
| Coreopsis palmata |
PRAIRIE COREOPSIS |
| Cornus alternifolia |
ALTERNATE-LEAVED DOGWOOD |
| Cornus drummondii |
ROUGH-LEAVED DOGWOOD |
| Corylus americana |
AMERICAN FILBERT |
| Crataegus mollis |
RED HAW |
| Cryptotaenia canadensis |
HONEWORT |
| Cynoglossum officinale |
COMMON HOUND'S TONGUE |
| Cyperus erythrorhizos |
RED-ROOTED SEDGE |
| Cyperus esculentus |
CHUFA |
| Cyperus filiculmis macilentus |
|
| Cyperus strigosus |
STRAW COLORED FLATSEDGE |
| Cypripedium pubescens |
LG. YELLOW LADY-SLIPPER ORCHID |
| Cystopteris bulbifera |
BERRY BLADDER FERN |
| Cystopteris protrusa |
FRAGILE FERN |
| Dactylis glomerata |
ORCHARD GRASS |
| Dalea purpurea |
PURPLE PRAIRIE CLOVER |
| Datura stramonium |
JIMSONWEED |
| Daucus carota |
QUEEN-ANNE'S-LACE |
| Dentaria laciniata |
PEPPER-ROOT |
| Descurainia pinnata brachycarpa |
TANSY MUSTARD |
| Desmodium cuspidatum |
TICK TREFOIL |
| Desmodium glabellum |
TICK TREFOIL |
| Desmodium glutinosum |
BEGGAR'S LICE |
| Dicentra cucullaria |
DUTCHMAN'S-BREECHES |
| Dichanthelium acuminatum fasciculatum |
PANIC GRASS |
| Dichanthelium leibergii |
|
| Dichanthelium oligosanthes scribnerianum |
SCRIBNER'S PANIC GRASS |
| Dichanthelium villosissimum pseudopubesc |
|
| Digitaria sanguinalis |
HAIRY CRAB GRASS |
| Dioscorea villosa |
WILD YAM |
| Dodecatheon meadia |
SHOOTING STAR |
| Echinacea pallida |
PALE PURPLE CONEFLOWER |
| Echinochloa muricata |
BARNYARD GRASS |
| Echinochloa muricata wiegandii |
BARNYARD GRASS |
| Echinocystis lobata |
WILD BALSAM-APPLE |
| Echinodorus berteroi lanceolatus |
BURHEAD |
| Eleocharis erythropoda |
|
| Ellisia nyctelea |
AUNT LUCY |
| Elodea nuttallii |
ELODEA |
| Elymus canadensis |
CANADA WILD RYE |
| Elymus hystrix |
BOTTLEBRUSH GRASS |
| Elymus riparius |
RIVERBANK WILD RYE |
| Elymus villosus |
HAIRY WILD RYE |
| Elymus virginicus |
LYME GRASS |
| Epilobium coloratum |
CINNAMON WILLOW HERB |
| Equisetum arvense |
COMMON HORSETAIL |
| Equisetum hyemale affine |
SCOURING RUSH |
| Equisetum laevigatum |
SMOOTH SCOURING RUSH |
| Eragrostis cilianensis |
STINK GRASS |
| Eragrostis frankii |
SANDBAR LOVE GRASS |
| Eragrostis hypnoides |
CREEPING LOVE GRASS |
| Eragrostis pectinacea |
CAROLINA LOVE GRASS |
| Eragrostis spectabilis |
PURPLE LOVE GRASS |
| Erigeron annuus |
ANNUAL FLEABANE |
| Erigeron philadelphicus |
MARSH FLEABANE |
| Erigeron strigosus |
DAISY FLEABANE |
| Erysimum cheiranthoides |
WORMSEED MUSTARD |
| Erythronium albidum |
WHITE ADDER'S TONGUE |
| Euonymus atropurpureus |
BURNING BUSH |
| Eupatorium altissimum |
TALL BONESET |
| Eupatorium fistulosum |
HOLLOW JOE-PYE WEED |
| Eupatorium maculatum |
SPOTTED JOE PYE WEED |
| Eupatorium perfoliatum |
COMMON BONESET |
| Eupatorium purpureum |
GREEN-STEMMED JOE-PYE WEED |
| Eupatorium rugosum |
WHITE SNAKEROOT |
| Eupatorium serotinum |
LATE BONESET |
| Euphorbia corollata |
FLOWERING SPURGE |
| Euphorbia esula |
LEAFY SPURGE |
| Euthamia graminifolia |
GRASSLEAF GOLDENROD |
| Festuca obtusa |
NODDING FESCUE |
| Festuca pratensis |
ENGLISH BLUEGRASS |
| Filipendula rubra |
QUEEN OF THE PRAIRIE |
| Floerkea proserpinacoides |
FALSE MERMAID |
| Fraxinus pennsylvanica |
GREEN ASH |
| Froelichia gracilis |
COTTONWEED |
| Galearis spectabilis |
SHOWY ORCHIS |
| Galium aparine |
ANNUAL BEDSTRAW |
| Galium circaezans |
WILD LICORICE |
| Galium concinnum |
SHINING BEDSTRAW |
| Galium mollugo |
WHITE BEDSTRAW |
| Galium triflorum |
SWEET-SCENTED BEDSTRAW |
| Gaura biennis |
BUTTERFLY-WEED |
| Geranium maculatum |
WILD GERANIUM |
| Geum canadense |
WHITE AVENS |
| Geum laciniatum |
ROUGH AVENS |
| Gleditsia triacanthos |
HONEY LOCUST |
| Glyceria striata |
FOWL MANNA GRASS |
| Glyceria striata stricta |
FOWL MANNA GRASS |
| Gnaphalium obtusifolium |
CATFOOT |
| Grindelia squarrosa |
CURLYCUP GUMWEED |
| Gymnocladus dioicus |
KENTUCKY COFFEETREE |
| Hackelia virginiana |
STICKSEED |
| Hedeoma hispida |
ROUGH PENNYROYAL |
| Helianthus annuus |
COMMON SUNFLOWER |
| Helianthus grosseserratus |
SAWTOOTH SUNFLOWER |
| Helianthus hirsutus |
BRISTLY SUNFLOWER |
| Helianthus occidentalis |
WESTERN SUNFLOWER |
| Helianthus rigidus |
PRAIRIE SUNFLOWER |
| Helianthus strumosus |
PALE-LEAVED SUNFLOWER |
| Helianthus tuberosus subcanescens |
JERUSALEM ARTICHOKE |
| Heliopsis helianthoides |
FALSE SUNFLOWER |
| Hepatica nobilis acuta |
SHARP-LOBED HEPATICA |
| Heracleum lanatum |
COW PARSNIP |
| Heterotheca camporum |
GOLDEN ASTER |
| Hibiscus laevis |
HALBERD-LEAVED ROSE MALLOW |
| Hordeum jubatum |
FOX-TAIL BARLEY |
| Hordeum pusillum |
LITTLE BARLEY |
| Humulus lupulus |
COMMON HOPS |
| Hydrophyllum appendiculatum |
GREAT WATERLEAF |
| Hydrophyllum virginianum |
VIRGINIA WATERLEAF |
| Hypericum majus |
ST. JOHNS-WORT |
| Hypericum punctatum |
SPOTTED ST. JOHNS-WORT |
| Hypericum sphaerocarpum |
ROUND-FRUITED ST. JOHNS-WORT |
| Hypoxis hirsuta |
COMMON GOLDSTARGRASS |
| Impatiens capensis |
JEWELWEED |
| Impatiens pallida |
PALE TOUCH-ME-NOT |
| Ipomoea lacunosa |
SMALL WHITE MORNING-GLORY |
| Iva xanthifolia |
RAG SUMPWEED |
| Juglans nigra |
BLACK WALNUT |
| Juncus canadensis |
CANADIAN RUSH |
| Juncus tenuis |
PATH RUSH |
| Juniperus virginiana |
EASTERN RED CEDAR |
| Justicia americana |
WATER WILLOW |
| Kochia scoparia |
BELVEDERE SUMMER CYPRESS |
| Lactuca canadensis |
CANADA LETTUCE |
| Lactuca floridana |
BLUE LETTUCE |
| Lactuca serriola |
COMPASS PLANT |
| Laportea canadensis |
CANADA WOOD NETTLE |
| Leersia oryzoides |
RICE CUTGRASS |
| Lemna minor |
COMMON DUCKWEED |
| Lemna perpusilla |
LEAST DUCKWEED |
| Leonurus cardiaca |
MOTHERWORT |
| Lepidium campestre |
FIELD CRESS |
| Lepidium densiflorum |
PEPPERGRASS |
| Lepidium virginicum |
COMMON PEPPERGRASS |
| Lespedeza capitata |
BUSH CLOVER |
| Liatris aspera |
ROUGH BLAZING STAR |
| Linaria vulgaris |
BUTTER-AND-EGGS |
| Linum sulcatum |
GROOVED YELLOW FLAX |
| Lithospermum canescens |
HOARY PUCCOON |
| Lithospermum caroliniense |
HAIRY PUCCOON |
| Lithospermum incisum |
YELLOW PUCCOON |
| Lobelia siphilitica |
BLUE CARDINAL-FLOWER |
| Lonicera morrowi |
MORROW'S HONEYSUCKLE |
| Ludwigia palustris americana |
MARSH PURSLANE |
| Lychnis alba |
EVENING CAMPION |
| Lycopus americanus |
COMMON WATER HOREHOUND |
| Lycopus asper |
ROUGH WATER HOREHOUND |
| Lysimachia ciliata |
FRINGED LOOSESTRIFE |
| Lythrum alatum |
WINGED LOOSESTRIFE |
| Malus ioensis |
IOWA CRAB APPLE |
| Malva neglecta |
CHEESES |
| Matricaria matricarioides |
PINEAPPLE WEED |
| Medicago lupulina |
BLACK MEDIC |
| Medicago sativa |
ALFALFA |
| Melilotus alba |
WHITE SWEET CLOVER |
| Melilotus officinalis |
YELLOW SWEET CLOVER |
| Menispermum canadense |
MOONSEED |
| Mertensia virginica |
BLUEBELLS |
| Mimulus ringens |
MONKEY FLOWER |
| Mirabilis nyctaginea |
WILD FOUR-O'CLOCK |
| Mitella diphylla |
BISHOP'S-CAP |
| Mollugo verticillatus |
CARPETWEED |
| Monarda fistulosa |
WILD BERGAMOT |
| Morus rubra |
RED MULBERRY |
| Muhlenbergia frondosa |
COMMON SATIN GRASS |
| Muhlenbergia mexicana |
LEAFY SATIN GRASS |
| Najas guadalupensis |
SOUTHERN NAIAD |
| Napaea dioica |
GLADE MALLOW |
| Nepeta cataria |
CATNIP |
| Oenothera biennis |
EVENING PRIMROSE |
| Oenothera rhombipetala |
SAND PRIMROSE |
| Onoclea sensibilis |
SENSITIVE FERN |
| Orobanche ludoviciana |
BROOMRAPE |
| Osmorhiza claytonii |
SWEET CICELY |
| Osmunda claytoniana |
INTERRUPTED FERN |
| Ostrya virginiana |
HOP HORNBEAM |
| Oxalis dillenii |
YELLOW WOOD SORREL |
| Oxalis stricta |
YELLOW WOOD SORREL |
| Oxalis violacea |
PURPLE OXALIS |
| Oxypolis rigidior |
COWBANE |
| Panicum capillare |
WITCH GRASS |
| Panicum virgatum |
PRAIRIE SWITCHGRASS |
| Parietaria pensylvanica |
PENNSYLVANIA PELLITORY |
| Paronychia canadensis |
FORKED CHICKWEED |
| Parthenium integrifolium |
AMERICAN FEVERFEW |
| Parthenocissus inserta |
VIRGINIA CREEPER |
| Parthenocissus quinquefolia |
VIRGINIA CREEPER |
| Pastinaca sativa |
PARSNIP |
| Penstemon calycosus |
SMOOTH BEARD-TONGUE |
| Penstemon tubaeflorus |
BEARD-TONGUE |
| Penthorum sedoides |
DITCH STONECROP |
| Phalaris arundinacea |
REED CANARY GRASS |
| Phleum pratense |
TIMOTHY |
| Phlox maculata |
WILD SWEET WILLIAM |
| Phlox paniculata |
GARDEN PHLOX |
| Phlox pilosa |
DOWNY PHLOX |
| Phragmites australis |
COMMON RED REED |
| Phryma leptostachya |
LOPSEED |
| Phyla lanceolata |
FOG-FRUIT |
| Physalis heterophylla |
GROUND CHERRY |
| Physalis subglabrata |
SMOOTH GROUND CHERRY |
| Physalis virginiana |
GROUND CHERRY |
| Pilea pumila |
CANADA CLEARWEED |
| Plantago aristata |
BRACTED PLANTAIN |
| Plantago lanceolata |
BUCKHORN |
| Plantago major |
COMMON PLANTAIN |
| Plantago rugelii |
RED-STALKED PLANTAIN |
| Platanus occidentalis |
BUTTONWOOD |
| Poa annua |
ANNUAL BLUEGRASS |
| Poa compressa |
CANADIAN BLUEGRASS |
| Poa pratensis |
KENTUCKY BLUEGRASS |
| Podophyllum peltatum |
MAYAPPLE |
| Poinsettia dentata |
WILD POINSETTIA |
| Polanisia dodecandra |
CLAMMYWEED |
| Polemonium reptans |
JACOB'S-LADDER |
| Polygala senega |
SENECA SNAKEROOT |
| Polygonatum commutatum |
GREAT SOLOMON SEAL |
| Polygonum amphibium |
WATER SMARTWEED |
| Polygonum arenastrum |
KNOTWEED |
| Polygonum convolvulus |
BLACK BIRDWEED |
| Polygonum erectum |
ERECT KNOTWEED |
| Polygonum hydropiper |
COMMON SMARTWEED |
| Polygonum hydropiperoides |
MILD WATER PEPPER |
| Polygonum lapathifolium |
CURTTOP LADY'S THUMB |
| Polygonum pensylvanicum laevigatum |
PENNSYLVANIA SMARTWEED |
| Polygonum persicaria |
SPOTTED LADY'S THUMB |
| Polygonum punctatum |
DOTTED SMARTWEED |
| Polygonum scandens |
CLIMBING BUCKWHEAT |
| Polygonum tenue |
SLENDER KNOTWEED |
| Polymnia canadensis |
LEAFCUP |
| Polymnia canadensis |
LEAFCUP |
| Polytaenia nuttallii |
PRAIRIE PARSLEY |
| Populus deltoides |
EASTERN COTTONWOOD |
| Populus grandidentata |
BIG-TOOTH ASPEN |
| Portulaca oleracea |
PURSLANE |
| Potamogeton foliosus |
LEAFY PONDWEED |
| Potamogeton pectinatus |
COMB PONDWEED |
| Potentilla argentea |
SILVERY CINQUEFOIL |
| Potentilla arguta |
PRAIRIE CINQUEFOIL |
| Potentilla norvegica |
ROUGH CINQUEFOIL |
| Potentilla recta |
SULFUR CINQUEFOIL |
| Potentilla simplex |
COMMON CINQUEFOIL |
| Prunella vulgaris elongata |
SELF-HEAL |
| Prunus americana |
AMERICAN PLUM |
| Prunus serotina |
WILD BLACK CHERRY |
| Prunus virginiana |
COMMON CHOKECHERRY |
| Psoralea onobrychis |
FRENCH GRASS |
| Pycnanthemum tenuifolium |
SLENDER MOUNTAIN MINT |
| Quercus alba |
WHITE OAK |
| Quercus imbricaria |
JACK OAK |
| Quercus macrocarpa |
BURR OAK |
| Quercus rubra |
NORTHERN RED OAK |
| Quercus velutina |
BLACK OAK |
| Ranunculus abortivus |
LITTLE-LEAF BUTTERCUP |
| Ranunculus septentrionalis |
SWAMP BUTTERCUP |
| Ratibida pinnata |
DROOPING CONEFLOWER |
| Rhus glabra |
SMOOTH SUMAC |
| Ribes missouriense |
MISSOURI GOOSEBERRY |
| Ribes odoratum |
BUFFALO CURRENT |
| Rorippa islandica fernaldiana |
MARSH YELLOW CRESS |
| Rorippa sessiliflora |
SESSILE-FLOWERED CRESS |
| Rosa carolina |
PASTURE ROSE |
| Rosa multiflora |
JAPANESE ROSE |
| Rosa palustris |
SWAMPY ROSE |
| Rosa suffulta |
SUNSHINE ROSE |
| Rubus allegheniensis |
COMMON BLACKBERRY |
| Rubus occidentalis |
BLACK RASPBERRY |
| Rudbeckia hirta |
BLACK-EYED SUSAN |
| Rudbeckia laciniata |
CUTLEAF CONEFLOWER |
| Rudbeckia subtomentosa |
FRAGRANT CONEFLOWER |
| Rudbeckia triloba |
BROWN-EYED SUSAN |
| Ruellia humilis |
HAIRY RUELLIA |
| Rumex acetosella |
COMMON SORREL |
| Rumex altissimus |
PALE DOCK |
| Rumex crispus |
CURLY DOCK |
| Rumex verticillatus |
SWAMP DOCK |
| Sagittaria graminea |
GRASS-LEAVED ARROWHEAD |
| Sagittaria rigida |
DEEP WATER DUCK POTATO |
| Salix amygdaloides |
PEACH-LEAVED WILLOW |
| Salix exigua |
SANDBAR WILLOW |
| Salix nigra |
BLACK WILLOW |
| Sambucus canadensis |
COMMON ELDER |
| Sanguinaria canadensis |
BLOODROOT |
| Sanicula canadensis |
CANADIAN BLACK SNAKEROOT |
| Sanicula gregaria |
COMMON SNAKEROOT |
| Saponaria officinalis |
BOUNCING BET |
| Schrankia uncinata |
CAT-CLAW |
| Scirpus acutus |
GREAT BULRUSH |
| Scirpus atrovirens |
DARK GREEN RUSH |
| Scirpus fluviatilis |
RIVER BULRUSH |
| Scrophularia marilandica |
LATE FIGWORT |
| Scutellaria lateriflora |
MAD-DOG SKULLCAP |
| Secale cereale |
RYE |
| Senecio plattensis |
PRAIRIE GROUNDSEL |
| Setaria faberi |
GIANT FOXTAIL |
| Setaria glauca |
PIGEON GRASS |
| Setaria verticillata |
BRISTLY FOXTAIL |
| Setaria viridis |
COMMON FOXTAIL |
| Sicyos angulatus |
BUR CUCUMBER |
| Silene antirrhina |
SLEEPY CATCHFLY |
| Silene cserei |
GLAUCOUS CAMPION |
| Silene nivea |
SNOW CAMPION |
| Silene stellata |
STARRY CAMPION |
| Silphium integrifolium |
WHOLELEAF ROSINWEED |
| Silphium laciniatum |
COMPASS-PLANT |
| Silphium terebinthinaceum |
DOCK ROSIN-WEED |
| Sisymbrium altissimum |
TUMBLE MUSTARD |
| Sisyrinchium campestre |
PRAIRIE BLUE-EYED GRASS |
| Smilacina racemosa |
FALSE SOLOMON SEAL |
| Smilax ecirrata |
UPRIGHT CARRION FLOWER |
| Smilax hispida |
BRISTLY GREENBRIER |
| Smilax lasioneuron |
COMMON CARRION FLOWER |
| Solanum carolinense |
HORSE-NETTLE |
| Solidago canadensis |
CANADA GOLDENROD |
| Solidago flexicaulis |
BROADLEAF GOLDENROD |
| Solidago gigantea |
LATE GOLDENROD |
| Solidago missouriensis |
MISSOURI GOLDENROD |
| Solidago nemoralis |
DYERSWEED GOLDENROD |
| Solidago rigida |
RIGID GOLDENROD |
| Solidago ulmifolia |
ELM-LEAVED GOLDENROD |
| Sonchus arvensis glabrescens |
|
| Sorghastrum nutans |
INDIAN GRASS |
| Sparganium eurycarpum |
BURREED |
| Spartina pectinata |
FRESHWATER CORD GRASS |
| Spermolepis inermis |
|
| Sphenopholis obtusata major |
WEDGE GRASS |
| Spiraea alba |
MEADOW-SWEET |
| Sporobolus asper |
DROP SEED |
| Sporobolus heterolepis |
NORTHERN DROP SEED |
| Stachys palustris homotricha |
WOUNDWORT |
| Stachys tenuifolia |
SLENDERLEAF BETONY |
| Staphylea trifolia |
BLADDERNUT |
| Stellaria media |
COMMON CHICKWEED |
| Stipa spartea |
NEEDLE GRASS |
| Strophostyles helvola |
WILD BEAN |
| Tanacetum vulgare |
COMMON TANSY |
| Taraxacum laevigatum |
RED-SEEDED DANDELION |
| Taraxacum officinale |
COMMON DANDELION |
| Tephrosia virginiana |
GOAT'S RUE |
| Teucrium canadense boreale |
GRAY GERMANDER |
| Teucrium canadense virginicum |
AMERICAN GERMANDER |
| Thalictrum dasycarpum |
PURPLE MEADOW RUE |
| Thalictrum dasycarpum hypoglaucum |
MEADOW RUE |
| Thalictrum revolutum |
WAXY MEADOW RUE |
| Thaspium barbinode |
HAIRY MEADOW PARSNIP |
| Thelypteris palustris pubescens |
MARSH FERN |
| Thlaspi arvense |
FIELD PENNY CRESS |
| Tilia americana |
AMERICAN LINDEN |
| Toxicodendron radicans |
POISON IVY |
| Tradescantia ohiensis |
SPIDERWORT |
| Tragopogon dubius |
GOAT'S BEARD |
| Tragopogon porrifolius |
VEGETABLE OYSTER SALSIFY |
| Trifolium campestre |
LOW HOP CLOVER |
| Trifolium hybridum |
ALSIKE CLOVER |
| Trifolium pratense |
RED CLOVER |
| Trifolium repens |
WHITE CLOVER |
| Trillium flexipes |
DECLINED TRILLIUM |
| Trillium nivale |
SNOW TRILLIUM |
| Trillium recurvatum |
RED TRILLIUM |
| Triosteum aurantiacum |
EARLY HORSE GENTIAN |
| Triosteum illinoense |
ILLINOIS HORSE GENTIAN |
| Triosteum perfoliatum |
LATE HORSE GENTIAN |
| Typha latifolia |
CATTAIL |
| Ulmus americana |
AMERICAN ELM |
| Ulmus rubra |
SLIPPERY ELM |
| Urtica dioica |
STINGING NETTLE |
| Uvularia grandiflora |
BIG MERRY BELLS |
| Verbascum blattaria |
MOTH MULLEIN |
| Verbascum thapsus |
WOOLLY MULLEIN |
| Verbena bracteata |
CREEEPING VERVAIN |
| Verbena hastata |
BLUE VERVAIN |
| Verbena stricta |
HOARY VERVAIN |
| Verbena urticifolia |
WHITE VERVIAN |
| Verbesina alternifolia |
WING STEM |
| Vernonia fasciculata |
COMMON IRONWEED |
| Veronica arvensis |
CORN SPEEDWELL |
| Veronica peregrina |
PURSLANE SPEEDWELL |
| Veronicastrum virginicum |
CULVER'S ROOT |
| Viburnum lentago |
NANNYBERRY |
| Viola pubescens eriocarpa |
SMOOTH YELLOW VIOLET |
| Viola sororia |
WOOLLY BLUE VIOLET |
| Vitis cinerea |
WINTER GRAPE |
| Vitis riparia |
RIVERVBANK GRAPE |
| Xanthium strumarium canadensis |
COCKLE BUR |
| Zizia aurea |
GOLDEN ALEXANDERS |
| Zosterella dubia |
WATER STAR-GRASS |