651 records for WOODFORD County Abutilon theophrastii BUTTONWEED Acalypha rhomboidea THREE-SEEDED MERCURY Acer negundo ASH-LEAVED MAPLE Acer saccharinum RIVER MAPLE Acer saccharum HARD MAPLE Achillea millefolium COMMON MILFOIL Acorus americanus FLAG ROOT Actaea pachypoda DOLL'S-EYES Adiantum pedatum MAIDENHAIR FERN Agalinis purpurea FALSE FOXGLOVE Agalinis tenuifolia SLENDER FALSE FOXGLOVE Agastache nepetoides YELLOW GIANT HYSSOP Agastache scrophulariaefolia PURPLE GIANT HYSSOP Agrimonia pubescens SOFT AGRIMONY Agropyron repens COUCH GRASS Agropyron smithii COLORADO BLUESTEM Agrostis alba RED TOP Agrostis perennans AUTUMN BENT GRASS Alisma plantago aquatica parviflorum COMMON WATER PLANTAIN Allium canadense WILD GARLIC Allium vineale FIELD GARLIC Amaranthus hybridus GREEN AMARANTH Amaranthus retroflexus ROUGH PIGWEED Amaranthus tuberculatus TALL WATERHEMP Ambrosia artemisiifolia BITTERWEED Ambrosia psilostachya WESTERN RAGWEED Ambrosia trifida BUFFALO WEED Ammannia coccinea LONG-LEAVED AMMANNIA Amorpha canescens LEAD PLANT Amphicarpa bracteata HOG PEANUT Amphicarpa bracteata comosa HOG PEANUT Amsonia tabernaemontana BLUE STAR Andropogon gerardii BIG BLUESTEM Anemone virginiana TALL ANEMONE Angelica atropurpurea ANGELICA Antennaria plantaginifolia EVERLASTING Anthemis cotula DOG FENNEL Apocynum cannabinum DOGBANE Apocynum sibiricum INDIAN HEMP Aquilegia canadensis COLUMBINE Arabis canadensis SICKLEPOD Arabis shortii TOOTHED CRESS Aralia nudicaulis WILD SARSAPARILLA Aralia racemosa AMERICAN SPIKENARD Arisaema dracontium GREEN DRAGON Arisaema triphyllum INDIAN TURNIP Aristida oligantha PLAINS THREE AWN GRASS Armoracia aquatica LAKE CRESS Armoracia rusticana HORSERADISH Asclepias amplexicaulis SAND MILKWEED Asclepias incarnata SWAMP MILKWEED Asclepias quadrifolia WHORLED MILKWEED Asclepias syriaca COMMON MILKWEED Asclepias verticillata HORSETAIL MILKWEED Asparagus officinalis GARDEN ASPARAGUS Asplenium platyneuron EBONY SPLEENWORT Aster anomalus BLUE ASTER Aster drummondii DRUMMOND'S ASTER Aster firmus GLOSSY-LEAF ASTER Aster furcatus FORKED 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 shortii SHORT'S ASTER Aster simplex PANICLED ASTER Athyrium angustum LADY FERN Athyrium pycnocarpon GLADE FERN Avena sativa CULTIVATED OATS Baptisia lactea WHITE WILD INDIGO Baptisia leucophaea CREAM WILD INDIGO Berula erecta WATER PARSNIP Bidens bipinnata SPANISH NEEDLES Bidens cernua NODDING BEGGAR-TICKS Bidens coronata BEGGAR-TICKS Bidens frondosa COMMON BEGGAR-TICKS Bidens vulgata STICKTIGHT Blephilia hirsuta PAGODA PLANT Boehmeria cylindrica FALSE NETTLE Boltonia decurrens FALSE ASTER Botrychium virginianum RATTLESNAKE FERN Bouteloua curtipendula MESQUITE GRASS Brachyelytrum erectum LONG-AWNED WOOD GRASS Brassica nigra BLACK MUSTARD Bromus commutatus HAIRY BROME Bromus inermis AWNLESS BROME GRASS Bromus nottowayanus BROME GRASS Bromus pubescens CANADA BROME GRASS Bromus tectorum CHEAT GRASS BROME Buglossoides arvense CORN GROMWELL Cacalia atriplicifolia PALE INDIAN PLANTAIN Calamagrostis canadensis BLUEJOINT GRASS Callirhoe triangulata POPPY MALLOW Caltha palustris COWSLIP Calystegia sepium americana AMERICAN BINDWEED Calystegia sepium angulata HEDGE-BINDWEED Campanula americana AMERICAN BELLFLOWER Campanula uliginosa MARSH BELLFLOWER Cannabis sativa HASHISH Capsella bursa-pastoris SHEPERD'S-PURSE Cardamine bulbosa BULB BITTERCRESS Cardaria draba HOARY CRESS Carduus nutans MUSK BRISTLE THISTLE Carex blanda WOODLAND SEDGE Carex brevior FESCUE SEDGE Carex cephaloidea Carex cephalophora Carex conjuncta Carex convoluta Carex festucacea SEDGE Carex gracilescens SEDGE Carex grisea SEDGE Carex hirsutella SEDGE Carex hystricina BOTTLEBRUSH SEDGE Carex jamesii GRASS SEDGE Carex lacustris RIVER SEDGE Carex lanuginosa WOOLY SEDGE Carex leptalea BRISTLE STALKED SEDGE Carex lupuliformis SEDGE Carex lupulina HOP SEDGE Carex muskingumensis SEDGE Carex pensylvanica PENNSYLVANIA SEDGE Carex retroflexa Carex rosea Carex scoparia BROOM SEDGE Carex shortiana SEDGE Carex sterilis SEDGE Carex stipata PRICKLY SEDGE Carex vulpinoidea FOX SEDGE Carya cordiformis BITTERNUT HICKORY Carya illinoensis PECAN Carya ovata SCALY-BARK HICKORY Cassia fasciculata GOLDEN CASSIA Cassia hebecarpa WILD SENNA Cassia marilandica MARYLAND SENNA Castilleja coccinea INDIAN PAINTBRUSH 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 nutans NODDING MOUSE-EAR CHICKWEED Cerastium vulgatum COMMON MOUSE-EAR CHICKWEED Ceratophyllum demersum COONTAIL Cercis canadensis EASTERN REDBUD Chaenorrhinum minus DWARF SNAPDRAGON Chamaesyce supina MILK SPURGE Chelone glabra WHITE TURTLEHEAD Chenopodium album LAMB'S QUARTERS Chenopodium ambrosioides AMERICAN WORMSEED Chenopodium standleyanum GOOSEFOOT Cichorium intybus BLUE SAILORS Cicuta bulbifera BULBLET WATER HEMLOCK Cicuta maculata WATER HEMLOCK Cinna arundinacea STOUTWOOD REED Circaea lutetiana canadensis ENCHANTER'S NIGHTSHADE Cirsium arvense CANADA THISTLE Cirsium discolor FIELD THISTLE Cirsium muticum FEN THISTLE Claytonia virginica SPRING BEAUTY Clematis pitcheri LEATHER FLOWER Conyza canadensis HORSEWEED Coreopsis tripteris TALL COREOPSIS Cornus drummondii ROUGH-LEAVED DOGWOOD Cornus obliqua PALE DOGWOOD Cornus racemosa GRAY DOGWOOD Cornus stolonifera RED OSIER DOGWOOD Corylus americana AMERICAN FILBERT Crataegus crus-galli COCK-SPUR THORN Crataegus mollis RED HAW Cryptotaenia canadensis HONEWORT Cucurbita foetidissima MISSOURI GOURD Cuphea viscosissima BLUE WAXWEED Cuscuta cephalanthi BUTTONBUSH DODDER Cuscuta gronovii DODDER Cycloloma atriplicifolium TUMBLE RINGWING Cynanchum laeve BLUE VINE Cynodon dactylon BAHAMA GRASS Cynoglossum officinale COMMON HOUND'S TONGUE Cyperus aristatus BEARDED FLAT SEDGE Cyperus diandrus LOW FLAT SEDGE Cyperus erythrorhizos RED-ROOTED SEDGE Cyperus esculentus CHUFA Cyperus filiculmis FERN FLATSEDGE Cyperus filiculmis macilentus Cyperus rivularis BROOK FLAT SEDGE Cyperus schweinitzii SCHWEINITZ FLATSEDGE Cyperus strigosus STRAW COLORED FLATSEDGE Cypripedium X favillianum Cypripedium candidum WHITE LADY'S-SLIPPER ORCHID Cypripedium pubescens LG. YELLOW LADY-SLIPPER ORCHID Cystopteris protrusa FRAGILE FERN Dactylis glomerata ORCHARD GRASS Dasistoma macrophylla MULLEIN FOXGLOVE Datura stramonium JIMSONWEED Daucus carota QUEEN-ANNE'S-LACE Decodon verticillatus SWAMP LOOSESTRIFE Dentaria laciniata PEPPER-ROOT Descurainia pinnata brachycarpa TANSY MUSTARD Desmodium canadense SHOWY TICK TREFOIL Desmodium cuspidatum TICK TREFOIL Desmodium cuspidatum longifolium TICK TREFOIL Desmodium paniculatum PANICLED TICK TREFOIL Diarrhena americana obovata BEAK GRASS Dicentra cucullaria DUTCHMAN'S-BREECHES Dichanthelium acuminatum fasciculatum PANIC GRASS Dichanthelium clandestinum BROAD-LEAVED PANIC GRASS Dichanthelium leibergii Dichanthelium oligosanthes Dichanthelium oligosanthes scribnerianum SCRIBNER'S PANIC GRASS Dichanthelium villosissimum praecocius Digitaria sanguinalis HAIRY CRAB GRASS Dioscorea villosa WILD YAM Dodecatheon meadia SHOOTING STAR Dryopteris carthusiana SPINULOSE WOODFERN Dryopteris intermedia COMMON WOODFERN Dyssodia papposa FETID MARIGOLD Echinochloa muricata BARNYARD GRASS Echinochloa muricata wiegandii BARNYARD GRASS Echinochloa walteri SALT-MARSH COCKSPUR GRASS Echinocystis lobata WILD BALSAM-APPLE Eclipta prostrata YERBA DE TAJO Eleocharis elliptica compressa FLAT-STEMMED SPIKE RUSH Eleocharis erythropoda Eleocharis intermedia MATTED SPIKE RUSH Eleocharis palustris Eleusine indica GOOSE GRASS Ellisia nyctelea AUNT LUCY Elodea canadensis ANACHARIS Elymus canadensis CANADA WILD RYE Elymus hystrix BOTTLEBRUSH GRASS Elymus villosus HAIRY WILD RYE Elymus virginicus LYME GRASS Epilobium coloratum CINNAMON WILLOW HERB Epilobium strictum DOWNY WILLOW HERB Equisetum X litorale HORSETAIL Equisetum arvense COMMON HORSETAIL Equisetum fluviatile WATER HORSETAIL Equisetum hyemale affine SCOURING RUSH Equisetum laevigatum SMOOTH SCOURING RUSH Eragrostis capillaris LACE GRASS Eragrostis cilianensis STINK GRASS Eragrostis frankii SANDBAR LOVE GRASS Eragrostis hypnoides CREEPING LOVE GRASS Eragrostis minor LOVE GRASS Eragrostis pectinacea CAROLINA LOVE GRASS Eragrostis spectabilis PURPLE LOVE GRASS Erigeron annuus ANNUAL FLEABANE Erigeron philadelphicus MARSH FLEABANE Eriophorum angustifolium COTTON SEDGE Eryngium yuccifolium RATTLESNAKE MASTER Erysimum cheiranthoides WORMSEED MUSTARD Erythronium albidum WHITE ADDER'S TONGUE Euonymus atropurpureus BURNING BUSH Eupatorium altissimum TALL BONESET 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 Eupatorium sessilifolium UPLAND BONESET Euphorbia corollata FLOWERING SPURGE Euthamia graminifolia GRASSLEAF GOLDENROD Fagopyrum esculentum BUCKWHEAT Festuca pratensis ENGLISH BLUEGRASS Filipendula rubra QUEEN OF THE PRAIRIE Fimbristylis autumnalis AUTUMN SEDGE Fragaria virginiana WILD STRAWBERRY Fraxinus americana WHITE ASH Fraxinus pennsylvanica GREEN ASH Froelichia gracilis COTTONWEED Galearis spectabilis SHOWY ORCHIS Galium aparine ANNUAL BEDSTRAW Galium circaezans WILD LICORICE Galium concinnum SHINING BEDSTRAW Galium triflorum SWEET-SCENTED BEDSTRAW Gaura biennis BUTTERFLY-WEED Gaura parviflora SMALL-FLOWERED GAURA Geranium carolinianum WILD CRANESBILL Geranium maculatum WILD GERANIUM Geum canadense WHITE AVENS Geum laciniatum ROUGH AVENS Gleditsia triacanthos HONEY LOCUST Glyceria striata FOWL MANNA GRASS Gnaphalium obtusifolium CATFOOT Gymnocladus dioicus KENTUCKY COFFEETREE Hackelia virginiana STICKSEED Hedeoma hispida ROUGH PENNYROYAL Hedeoma pulegioides AMERICAN PENNYROYAL Helenium autumnale AUTUMN SNEEZEWEED Helianthus annuus COMMON SUNFLOWER Helianthus divaricatus DIVERGENT SUNFLOWER Helianthus grosseserratus SAWTOOTH SUNFLOWER Helianthus hirsutus BRISTLY SUNFLOWER Helianthus rigidus PRAIRIE SUNFLOWER Helianthus strumosus PALE-LEAVED SUNFLOWER Helianthus tuberosus JERUSALEM ARTICHOKE Helianthus tuberosus subcanescens JERUSALEM ARTICHOKE Heliopsis helianthoides FALSE SUNFLOWER Hibiscus laevis HALBERD-LEAVED ROSE MALLOW Hieracium scabrum HAIRY HAWKWEED Hordeum jubatum FOX-TAIL BARLEY Hordeum pusillum LITTLE BARLEY Humulus lupulus COMMON HOPS Hydrastis canadensis GOLDEN SEAL Hydrophyllum appendiculatum GREAT WATERLEAF Hypericum mutilum DWARF ST. JOHNS-WORT Hypericum perforatum COMMON ST. JOHNS-WORT Hypericum punctatum SPOTTED ST. JOHNS-WORT Hypericum pyramidatum GIANT ST. JOHNS-WORT Hypericum sphaerocarpum ROUND-FRUITED ST. JOHNS-WORT Hypoxis hirsuta COMMON GOLDSTARGRASS Impatiens capensis JEWELWEED Impatiens pallida PALE TOUCH-ME-NOT Iodanthus pinnatifidus PURPLE ROCKET Ipomoea lacunosa SMALL WHITE MORNING-GLORY Ipomoea pandurata WILD SWEET POTATO VINE Ipomopsis rubra STANDING CYPRESS Iris shrevei SOUTHERN BLUE FLAG Jeffersonia diphylla TWINLEAF Juglans nigra BLACK WALNUT Juncus brachycephalus SHORT-HEADED RUSH Juncus dudleyi DUDLEY RUSH Juncus nodosus JOINTED RUSH Juncus tenuis PATH RUSH Juncus torreyi TORREY RUSH Juniperus virginiana EASTERN RED CEDAR Justicia americana WATER WILLOW Lactuca canadensis CANADA LETTUCE Lactuca floridana BLUE LETTUCE Lactuca saligna WILLOW-LEAVED LETTUCE Lactuca serriola COMPASS PLANT Leersia lenticularis CATCHFLY GRASS Leersia oryzoides RICE CUTGRASS Leersia virginica WHITE GRASS Lemna minor COMMON DUCKWEED Leonurus cardiaca MOTHERWORT Lepidium campestre FIELD CRESS Lepidium densiflorum PEPPERGRASS Lepidium virginicum COMMON PEPPERGRASS Leptoloma cognatum FALL WITCH GRASS Lespedeza capitata BUSH CLOVER Leucospora multifida Lilium michiganense MICHIGAN LILY Lindernia dubia FALSE PIMPERNEL Liparis liliifolia LARGE TWAYBLADE Liparis loeselii GREEN TWAYBLADE Lithospermum canescens HOARY PUCCOON Lithospermum caroliniense HAIRY PUCCOON Lobelia cardinalis CARDINAL-FLOWER Lobelia inflata INDIAN TOBACCO Lobelia kalmii BOG LOBELIA Lobelia siphilitica BLUE CARDINAL-FLOWER Lolium perenne CRESTED RYE GRASS Ludwigia palustris americana MARSH PURSLANE Lycopus americanus COMMON WATER HOREHOUND Lycopus uniflorus NOTHERN BUGLE WEED Lycopus virginicus BUGLE WEED Lysimachia X commixta LOOSESTRIFE Lysimachia ciliata FRINGED LOOSESTRIFE Lysimachia nummularia MONEYWORT Lysimachia quadriflora NARROW-LEAVED LOOSESTRIFE Lysimachia thyrsiflora TUFTED LOOSESTRIFE Lysimachia vulgaris GARDEN LOOSESTRIFE Lythrum alatum WINGED LOOSESTRIFE Maclura pomifera HEDGE APPLE Malus ioensis IOWA CRAB APPLE Matricaria chamomilla GERMAN CHAMOMILE Matricaria matricarioides PINEAPPLE WEED Medicago lupulina BLACK MEDIC Medicago sativa ALFALFA Melilotus alba WHITE SWEET CLOVER Melilotus officinalis YELLOW SWEET CLOVER Menispermum canadense MOONSEED Mentha X gentilis LITTLE-LEAVED MINT Mentha X piperita PEPPERMINT Mentha arvensis villosa FIELD MINT Mertensia virginica BLUEBELLS Mimulus ringens MONKEY FLOWER Mirabilis nyctaginea WILD FOUR-O'CLOCK Mollugo verticillatus CARPETWEED Monarda fistulosa WILD BERGAMOT Monotropa uniflora INDIAN PIPE Morus alba WHITE MULBERRY Morus alba tatarica RUSSIAN MULBERRY Morus rubra RED MULBERRY Muhlenbergia frondosa COMMON SATIN GRASS Muhlenbergia mexicana LEAFY SATIN GRASS Muhlenbergia schreberi NIMBLE WILL Muhlenbergia sobolifera MUHLY Nasturtium officinale TRUE WATER CRESS Nepeta cataria CATNIP Oenothera biennis EVENING PRIMROSE Oenothera biennis canescens EVENING PRIMROSE Oenothera pilosella PRAIRIE SUNDROPS Oenothera rhombipetala SAND PRIMROSE Onoclea sensibilis SENSITIVE FERN Orobanche uniflora CANCER-ROOT Osmorhiza claytonii SWEET CICELY Ostrya virginiana HOP HORNBEAM Oxalis dillenii YELLOW WOOD SORREL Oxalis stricta YELLOW WOOD SORREL Oxalis violacea PURPLE OXALIS Oxypolis rigidior COWBANE Panax quinquefolius GINSENG 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 Pedicularis lanceolata SWAMP WOOD BETONY Peltandra virginica ARROW ARUM Penstemon digitalis FOXGLOVE BEARD-TONGUE Penthorum sedoides DITCH STONECROP Perilla frutescens BEEFSTEAK PLANT Phalaris arundinacea REED CANARY GRASS Phleum pratense TIMOTHY Phlox divaricata laphamii BLUE PHLOX Phlox glaberrima interior SMOOTH PHLOX Phlox maculata WILD SWEET WILLIAM Phlox paniculata GARDEN PHLOX Phlox pilosa DOWNY PHLOX Phragmites australis COMMON RED REED Phyla lanceolata FOG-FRUIT Physalis angulata GROUND CHERRY Physostegia speciosa FALSE DRAGONHEAD Pilea pumila CANADA CLEARWEED Plantago aristata BRACTED PLANTAIN Plantago lanceolata BUCKHORN Plantago rugelii RED-STALKED PLANTAIN Plantago virginica DWARF PLANTAIN Platanthera hyperborea huronensis GREEN ORCHID Platanus occidentalis BUTTONWOOD Poa compressa CANADIAN BLUEGRASS Poa pratensis KENTUCKY BLUEGRASS Poa sylvestris WOODLAND BLUEGRASS Podophyllum peltatum MAYAPPLE Poinsettia cyanthophora WILD POINSETTIA Poinsettia dentata WILD POINSETTIA Polanisia dodecandra CLAMMYWEED Polygala verticillata WHORLED MILKWORT Polygonatum commutatum GREAT SOLOMON SEAL Polygonum amphibium WATER SMARTWEED Polygonum arenastrum KNOTWEED Polygonum convolvulus BLACK BIRDWEED Polygonum hydropiper COMMON SMARTWEED Polygonum hydropiperoides MILD WATER PEPPER Polygonum pensylvanicum laevigatum PENNSYLVANIA SMARTWEED Polygonum persicaria SPOTTED LADY'S THUMB Polygonum punctatum DOTTED SMARTWEED Polygonum ramosissimum BUSHY KNOTWEED Polygonum scandens CLIMBING BUCKWHEAT Polymnia canadensis LEAFCUP Populus alba WHITE POPLAR Populus deltoides EASTERN COTTONWOOD Populus tremuloides QUAKING ASPEN Portulaca oleracea PURSLANE Potamogeton crispus BEGINNER'S PONDWEED Potamogeton pectinatus COMB PONDWEED Potentilla norvegica ROUGH CINQUEFOIL Potentilla simplex COMMON CINQUEFOIL Prenanthes alba LION'S FOOT Prenanthes crepidinea GREAT WHITE LETTUCE Proboscidea louisianica DEVILSCLAW Prunella vulgaris elongata SELF-HEAL Prunus serotina WILD BLACK CHERRY Prunus virginiana COMMON CHOKECHERRY Ptelea trifoliata WAFER ASH Pycnanthemum pilosum HAIRY MOUNTAIN MINT Pycnanthemum virginianum COMMON MOUNTAIN MINT Quercus alba WHITE OAK Quercus imbricaria JACK OAK Quercus macrocarpa BURR OAK Quercus marilandica BLACKJACK OAK Quercus rubra NORTHERN RED OAK Quercus velutina BLACK OAK Ranunculus abortivus LITTLE-LEAF BUTTERCUP Ranunculus hispidus BRISTLY BUTTERCUP Ranunculus sceleratus CURSED CROWFOOT Ranunculus septentrionalis SWAMP BUTTERCUP Rhamnus lanceolata LANCE-LEAVED BUCKTHORN Rhus glabra SMOOTH SUMAC Ribes americanum WILD BLACK CURRENT Ribes missouriense MISSOURI GOOSEBERRY Ribes odoratum BUFFALO CURRENT Robinia pseudoacacia BLACK LOCUST Rorippa islandica fernaldiana MARSH YELLOW CRESS Rorippa sinuata SPREADING YELLOW CRESS Rorippa sylvestris CREEPING YELLOW CRESS Rosa blanda MEADOW ROSE Rosa carolina PASTURE ROSE Rosa multiflora JAPANESE ROSE Rosa palustris SWAMPY ROSE Rosa setigera ILLINOIS ROSE Rosa suffulta SUNSHINE ROSE Rubus pensylvanicus BLACKBERRY 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 orbiculatus GREAT WATER DOCK Rumex patientia PATIENCE DOCK Rumex verticillatus SWAMP DOCK Sagittaria brevirostra ARROWLEAF Sagittaria latifolia ARROWHEAD Salix alba WHITE WILLOW Salix amygdaloides PEACH-LEAVED WILLOW Salix discolor PUSSY WILLOW Salix exigua SANDBAR WILLOW Salix nigra BLACK WILLOW Salix pedicellaris hypoglauca BOG WILLOW Salvia reflexa ROCKY MOUNTAIN SAGE Sambucus canadensis COMMON ELDER Samolus valerandii BROOKWEED Sanguinaria canadensis BLOODROOT Sanicula canadensis CANADIAN BLACK SNAKEROOT Sanicula gregaria COMMON SNAKEROOT Saponaria officinalis BOUNCING BET Sassafras albidum RED SASSAFRAS Saururus cernuus LIZARD'S TAIL Saxifraga pensylvanica SWAMP SAXIFRAGE Scirpus atrovirens DARK GREEN RUSH Scirpus fluviatilis RIVER BULRUSH Scirpus micranthus Scirpus pendulus RED BULRUSH Scirpus tabernaemontanii GREAT BULRUSH Scleria verticillata LOW NUT RUSH Scrophularia lanceolata EARLY FIGWORT Scrophularia marilandica LATE FIGWORT Scutellaria lateriflora MAD-DOG SKULLCAP Scutellaria leonardii SMALL SKULLCAP Scutellaria nervosa VEINY SKULLCAP Scutellaria ovata HEART-LEAVED SKULLCAP Senecio plattensis PRAIRIE GROUNDSEL Setaria faberi GIANT FOXTAIL Setaria glauca PIGEON GRASS Setaria viridis COMMON FOXTAIL Sicyos angulatus BUR CUCUMBER Sida spinosa PRICKLY SIDA Silene antirrhina SLEEPY CATCHFLY Silene nivea SNOW CAMPION Silene stellata STARRY CAMPION Silphium integrifolium WHOLELEAF ROSINWEED Silphium laciniatum COMPASS-PLANT Silphium perfoliatum CUP PLANT Silphium terebinthinaceum DOCK ROSIN-WEED Sisymbrium altissimum TUMBLE MUSTARD Sisymbrium officinale HEDGE MUSTARD Sium suave WATER PARSNIP Smilacina racemosa FALSE SOLOMON SEAL Smilax hispida BRISTLY GREENBRIER Smilax lasioneuron COMMON CARRION FLOWER Solanum carolinense HORSE-NETTLE Solanum cornutum BUFFALO-BUR Solanum ptycanthum BLACK NIGHTSHADE Solidago canadensis CANADA GOLDENROD Solidago gigantea LATE GOLDENROD Solidago juncea EARLY GOLDENROD Solidago nemoralis DYERSWEED GOLDENROD Solidago ohioensis OHIO GOLDENROD Solidago patula ROUGH-LEAF GOLDENROD Solidago riddellii RIDDELL'S GOLDENROD Solidago speciosa SHOWY GOLDENROD Solidago uliginosa BOG GOLDENROD Solidago ulmifolia ELM-LEAVED GOLDENROD Sonchus arvensis glabrescens Sorghastrum nutans INDIAN GRASS Sparganium eurycarpum BURREED Spartina pectinata FRESHWATER CORD GRASS Sphenopholis obtusata major WEDGE GRASS Spiranthes lacera SLENDER LADIES' TRESSES Spiranthes lucida YELLOW-LIPPED LADIES' TRESSES Spirodela polyrhiza BIG DUCKWEED Sporobolus asper DROP SEED Sporobolus cryptandrus SAND DROPSEED Stachys palustris homotricha WOUNDWORT Stachys tenuifolia SLENDERLEAF BETONY Staphylea trifolia BLADDERNUT Stellaria media COMMON CHICKWEED Stipa spartea NEEDLE GRASS Strophostyles helvola WILD BEAN Symplocarpus foetidus SKUNK CABBAGE Taenidia integerrima YELLOW PIMPERNEL Tanacetum vulgare COMMON TANSY Taraxacum officinale COMMON DANDELION Teucrium canadense boreale GRAY GERMANDER Teucrium canadense virginicum AMERICAN GERMANDER Thalictrum revolutum WAXY MEADOW RUE Thelypteris palustris pubescens MARSH FERN Thlaspi arvense FIELD PENNY CRESS Tilia americana AMERICAN LINDEN Toxicodendron radicans POISON IVY Toxicodendron vernix POISON SUMAC Tradescantia ohiensis SPIDERWORT Tragopogon dubius GOAT'S BEARD Tridens flavus FALSE RED TOP Trifolium arvense RABBIT-FOOT CLOVER Trifolium hybridum ALSIKE CLOVER Trifolium pratense RED CLOVER Trifolium repens WHITE CLOVER Trillium recurvatum RED TRILLIUM Triodanis perfoliata VENUS' LOOKING-GLASS Triosteum illinoense ILLINOIS HORSE GENTIAN Triosteum perfoliatum LATE HORSE GENTIAN Triphora trianthophora NODDING POGONIA Typha latifolia CATTAIL Ulmus americana AMERICAN ELM Ulmus rubra SLIPPERY ELM Urtica dioica STINGING NETTLE Uvularia grandiflora BIG MERRY BELLS Verbascum thapsus WOOLLY MULLEIN Verbena X perriana Verbena bracteata CREEEPING VERVAIN Verbena hastata BLUE VERVAIN Verbena stricta HOARY VERVAIN Verbena urticifolia WHITE VERVIAN Verbesina alternifolia WING STEM Vernonia fasciculata COMMON IRONWEED Vernonia missurica MISSOURI IRONWEED Veronica arvensis CORN SPEEDWELL Veronica catenata WATER SPEEDWELL Veronica peregrina PURSLANE SPEEDWELL Veronica scutellata MARSH SPEEDWELL Veronicastrum virginicum CULVER'S ROOT Viburnum lentago NANNYBERRY Viburnum prunifolium BLACK HAW Viburnum rafinesquianum DOWNY ARROWWOOD Viburnum trilobum HIGH-BUSH CRANBERRY Vicia villosa WINTER VETCH Viola sororia WOOLLY BLUE VIOLET Vitis cinerea WINTER GRAPE Vitis riparia RIVERVBANK GRAPE Vulpia octoflora SIX-WEEKS FESCUE Wolffia columbiana COMMON WATERMEAL Wolffia punctata WATER-MEAL Woodsia obtusa COMMON WOODSIA Xanthium strumarium canadensis COCKLE BUR Zannichellia palustris COMMON POOLMAT Zanthoxylum americanum PRICKLY ASH Zizania aquatica GIANT WILD RICE