| Abutilon theophrastii |
BUTTONWEED |
| Acalypha gracilens |
SLENDER THREE-SEEDED MERCURY |
| Acalypha rhomboidea |
THREE-SEEDED MERCURY |
| Acer negundo |
ASH-LEAVED MAPLE |
| Acer saccharinum |
RIVER MAPLE |
| Acer saccharum |
HARD MAPLE |
| Achillea millefolium |
COMMON MILFOIL |
| Achillea millefolium lanulosa |
NOSEBLEED |
| Acorus americanus |
FLAG ROOT |
| Adiantum pedatum |
MAIDENHAIR FERN |
| Agalinis aspera |
ROUGH FALSE FOXGLOVE |
| Agalinis purpurea |
FALSE FOXGLOVE |
| Agalinis skinneriana |
PALE FALSE FOXGLOVE |
| Agalinis tenuifolia |
SLENDER FALSE FOXGLOVE |
| Agastache scrophulariaefolia |
PURPLE GIANT HYSSOP |
| Agrimonia pubescens |
SOFT AGRIMONY |
| Agropyron repens |
COUCH GRASS |
| Agrostis alba |
RED TOP |
| Agrostis hyemalis |
HAIR GRASS |
| 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 hybridus |
GREEN AMARANTH |
| Amaranthus retroflexus |
ROUGH PIGWEED |
| Amaranthus rudis |
TAMARISK WATERHEMP |
| Amaranthus tuberculatus |
TALL WATERHEMP |
| Ambrosia artemisiifolia |
BITTERWEED |
| Ambrosia psilostachya |
WESTERN RAGWEED |
| Ambrosia trifida |
BUFFALO WEED |
| Amorpha canescens |
LEAD PLANT |
| Amorpha fruticosa |
FALSE INDIGO BUSH |
| Andropogon gerardii |
BIG BLUESTEM |
| Androsace occidentalis |
ANDROSACE |
| Anemone canadensis |
MEADOW ANEMONE |
| Anemone cylindrica |
CANDLE ANEMONE |
| Anemone quinquefolia |
WOOD ANEMONE |
| Anemone virginiana |
TALL ANEMONE |
| Angelica atropurpurea |
ANGELICA |
| Antennaria neglecta |
CAT'S FOOT |
| Antennaria plantaginifolia |
EVERLASTING |
| Anthemis cotula |
DOG FENNEL |
| Apocynum androsaemifolium |
SPREADING DOGBANE |
| Apocynum cannabinum |
DOGBANE |
| Apocynum sibiricum |
INDIAN HEMP |
| Aquilegia canadensis |
COLUMBINE |
| Arabis canadensis |
SICKLEPOD |
| Arabis lyrata |
LYRE-LEAVED ROCK CRESS |
| Arabis shortii |
TOOTHED CRESS |
| Aralia racemosa |
AMERICAN SPIKENARD |
| Argemone albiflora |
WHITE PRICKLY POPPY |
| Arisaema triphyllum |
INDIAN TURNIP |
| Aristida oligantha |
PLAINS THREE AWN GRASS |
| Aristida tuberculosa |
BEACH THREE AWN GRASS |
| Artemisia campestris |
BEACH WORMWOOD |
| Artemisia ludoviciana |
LOUISIANA SAGEBRUSH |
| Artemisia ludoviciana gnaphalodes |
|
| Artemisia serrata |
SAW-TOOTHED SAGEBRUSH |
| Aruncus dioicus |
GOAT'S-BEARD |
| Aruncus dioicus |
GOAT'S-BEARD |
| Asarum canadense reflexum |
CANADA WILD GINGER |
| Asclepias amplexicaulis |
SAND MILKWEED |
| Asclepias hirtella |
TALL GREEN MILKWEED |
| Asclepias incarnata |
SWAMP MILKWEED |
| Asclepias syriaca |
COMMON MILKWEED |
| Asclepias tuberosa interior |
BUTTERFLYWEED |
| Asclepias verticillata |
HORSETAIL MILKWEED |
| Asclepias viridiflora |
GREEN MILKWEED |
| Asparagus officinalis |
GARDEN ASPARAGUS |
| Aster azureus |
AZURE ASTER |
| Aster ericoides |
HEATH ASTER |
| Aster ericoides prostratus |
HEATH ASTER |
| Aster laevis |
SMOOTH ASTER |
| Aster lateriflorus |
SIDE-FLOWERED ASTER |
| Aster novae-angliae |
NEW ENGLAND ASTER |
| Aster pilosus |
HAIRY ASTER |
| Aster puniceus |
SWAMP ASTER |
| Aster sericeus |
SILKY ASTER |
| Aster simplex |
PANICLED ASTER |
| Athyrium angustum |
LADY FERN |
| Aureolaria flava |
SMOOTH FALSE FOXGLOVE |
| Aureolaria grandiflora pulchra |
YELLOW FALSE FOXGLOVE |
| Azolla mexicana |
MEXICAN AZOLLA |
| Baptisia lactea |
WHITE WILD INDIGO |
| Baptisia leucophaea |
CREAM WILD INDIGO |
| Berteroa incana |
HOARY ALYSSUM |
| Besseya bullii |
KITTEN TAILS |
| Betula nigra |
RED BIRCH |
| Bidens aristosa |
SWAMP MARIGOLD |
| Bidens cernua |
NODDING BEGGAR-TICKS |
| Bidens connata |
PURPLESTEM BEGGAR-TICKS |
| Bidens frondosa |
COMMON BEGGAR-TICKS |
| Bidens tripartita |
BEGGARTICK |
| Bidens vulgata |
STICKTIGHT |
| Boehmeria cylindrica |
FALSE NETTLE |
| Boltonia asteroides |
FALSE ASTER |
| Botrychium dissectum obliquum |
BRONZE FERN |
| Botrychium virginianum |
RATTLESNAKE FERN |
| Bouteloua curtipendula |
MESQUITE GRASS |
| Bouteloua hirsuta |
BLACK GRAMMA |
| Brickellia eupatorioides |
FALSE BONESET |
| Bromus inermis |
AWNLESS BROME GRASS |
| Bromus tectorum |
CHEAT GRASS BROME |
| Cacalia plantaginea |
PRAIRIE INDIAN PLANTAIN |
| Calamagrostis canadensis |
BLUEJOINT GRASS |
| Callirhoe triangulata |
POPPY MALLOW |
| Calystegia sepium americana |
AMERICAN BINDWEED |
| Camassia scilloides |
WILD HYACINTH |
| Campanula americana |
AMERICAN BELLFLOWER |
| Campanula aparinoides |
MARSH BELLFLOWER |
| Campanula rotundifolia |
BELLFLOWER |
| Cannabis sativa |
HASHISH |
| Capsella bursa-pastoris |
SHEPERD'S-PURSE |
| Cardamine bulbosa |
BULB BITTERCRESS |
| Cardamine pensylvanica |
BITTER CRESS |
| Carex aggregata |
|
| Carex brevior |
FESCUE SEDGE |
| Carex cephaloidea |
|
| Carex cristatella |
SEDGE |
| Carex eburnea |
SEDGE |
| Carex gravida |
HEAVY SEDGE |
| Carex grisea |
SEDGE |
| Carex lanuginosa |
WOOLY SEDGE |
| Carex lupulina |
HOP SEDGE |
| Carex meadii |
MEAD SEDGE |
| Carex muhlenbergii |
|
| Carex pensylvanica |
PENNSYLVANIA SEDGE |
| Carex rosea |
|
| Carex sprengelii |
LONG-BEAKED SEDGE |
| Carex stricta |
TUSSOCK SEDGE |
| Carex umbellata |
SEDGE |
| Carex vulpinoidea |
FOX SEDGE |
| Carya cordiformis |
BITTERNUT HICKORY |
| Carya illinoensis |
PECAN |
| Carya ovata |
SCALY-BARK HICKORY |
| Cassia fasciculata |
GOLDEN CASSIA |
| Ceanothus americanus |
NEW JERSEY TEA |
| Ceanothus herbaceus |
INLAND NEW JERSEY TEA |
| Celastrus scandens |
BITTERSWEET |
| Celtis occidentalis |
HACKBERRY |
| Celtis occidentalis canina |
HACKBERRY |
| Celtis occidentalis pumila |
SMALL HACKBERRY |
| Cenchrus longispinus |
MAT SANDBUR |
| Cephalanthus occidentalis |
BUTTONBUSH |
| Cerastium vulgatum |
COMMON MOUSE-EAR CHICKWEED |
| Ceratophyllum demersum |
COONTAIL |
| Ceratophyllum muricatum |
SPINY COONTAIL |
| Chamaesyce geyeri |
SPURGE |
| Chamaesyce maculata |
NODDING SPURGE |
| Chamaesyce supina |
MILK SPURGE |
| Chenopodium album |
LAMB'S QUARTERS |
| Chenopodium desiccatum leptophylloides |
NARROW-LEAVED GOOSEFOOT |
| Chenopodium gigantospermum |
MAPLE-LEAVED GOOSEFOOT |
| Chenopodium pallescens |
NARROW-LEAVED GOOSEFOOT |
| Cicuta maculata |
WATER HEMLOCK |
| Circaea lutetiana canadensis |
ENCHANTER'S NIGHTSHADE |
| Cirsium altissimum |
TALL THISTLE |
| Cirsium discolor |
FIELD THISTLE |
| Claytonia virginica |
SPRING BEAUTY |
| Clematis pitcheri |
LEATHER FLOWER |
| Clematis virginiana |
VIRGIN'S BOWER |
| Comandra umbellata |
BASTARD TOAD-FLAX |
| Commelina communis |
COMMON DAY FLOWER |
| Commelina erecta |
DAY FLOWER |
| Conyza canadensis |
HORSEWEED |
| Conyza ramosissima |
DWARF FLEABANE |
| Corallorhiza odontorhiza |
FALL CORAL-ROOT ORCHID |
| Coreopsis lanceolata |
LANCE COREOPSIS |
| Coreopsis palmata |
PRAIRIE COREOPSIS |
| Coreopsis tripteris |
TALL COREOPSIS |
| Corispermum hyssopifolium |
COMMON BUGSEED |
| Corispermum nitidum |
SMALL BUGSEED |
| Cornus alternifolia |
ALTERNATE-LEAVED DOGWOOD |
| Cornus drummondii |
ROUGH-LEAVED DOGWOOD |
| Cornus racemosa |
GRAY DOGWOOD |
| Corylus americana |
AMERICAN FILBERT |
| Crataegus punctata |
DOTTED THORN |
| Croton glandulosus septentrionalis |
SAND CROTON |
| Crotonopsis linearis |
RUSHFOIL |
| Cryptogramma stelleri |
SLENDER CLIFFBRAKE |
| Cryptotaenia canadensis |
HONEWORT |
| Cuscuta glomerata |
DODDER |
| Cycloloma atriplicifolium |
TUMBLE RINGWING |
| Cyperus esculentus |
CHUFA |
| Cyperus filiculmis |
FERN FLATSEDGE |
| Cyperus filiculmis macilentus |
|
| Cyperus grayioides |
GALINGALE |
| Cyperus houghtonii |
|
| Cyperus schweinitzii |
SCHWEINITZ FLATSEDGE |
| Cyperus strigosus |
STRAW COLORED FLATSEDGE |
| Cystopteris bulbifera |
BERRY BLADDER FERN |
| Cystopteris protrusa |
FRAGILE FERN |
| Dactylis glomerata |
ORCHARD GRASS |
| Dalea candida |
WHITE PRAIRIE CLOVER |
| Dalea purpurea |
PURPLE PRAIRIE CLOVER |
| Datura stramonium |
JIMSONWEED |
| Daucus carota |
QUEEN-ANNE'S-LACE |
| Dentaria laciniata |
PEPPER-ROOT |
| Descurainia pinnata brachycarpa |
TANSY MUSTARD |
| Desmodium canadense |
SHOWY TICK TREFOIL |
| Desmodium glabellum |
TICK TREFOIL |
| Desmodium glutinosum |
BEGGAR'S LICE |
| Desmodium illinoense |
ILLINOIS TICK TREFOIL |
| Dicentra cucullaria |
DUTCHMAN'S-BREECHES |
| Dichanthelium acuminatum fasciculatum |
PANIC GRASS |
| Dichanthelium boscii |
|
| Dichanthelium depauperatum |
STARVED PANIC GRASS |
| Dichanthelium oligosanthes scribnerianum |
SCRIBNER'S PANIC GRASS |
| Dichanthelium perlongum |
LONG-STALKED PANIC GRASS |
| Dichanthelium villosissimum praecocius |
|
| Dichanthelium villosissimum pseudopubesc |
|
| Dichanthelium wilcoxianum |
|
| Digitaria ischaemum |
SMOOTH CRAB GRASS |
| Digitaria sanguinalis |
HAIRY CRAB GRASS |
| Diodia teres |
POORJOE |
| Dioscorea villosa |
WILD YAM |
| Dirca palustris |
LEATHERWOOD |
| Dodecatheon amethystinum |
JEWELED SHOOTING-STAR |
| Draba reptans |
WHITLOW GRASS |
| Dryopteris carthusiana |
SPINULOSE WOODFERN |
| Echinacea pallida |
PALE PURPLE CONEFLOWER |
| Echinochloa muricata |
BARNYARD GRASS |
| Echinochloa muricata wiegandii |
BARNYARD GRASS |
| Echinocystis lobata |
WILD BALSAM-APPLE |
| Eleocharis obtusa |
|
| Eleusine indica |
GOOSE GRASS |
| Elodea canadensis |
ANACHARIS |
| Elodea nuttallii |
ELODEA |
| Elymus canadensis |
CANADA WILD RYE |
| Elymus hystrix |
BOTTLEBRUSH GRASS |
| Elymus villosus |
HAIRY WILD RYE |
| Elymus virginicus |
LYME GRASS |
| Epilobium coloratum |
CINNAMON WILLOW HERB |
| Equisetum X ferrissii |
INTERMEDIATE SCOURING RUSH |
| Equisetum arvense |
COMMON HORSETAIL |
| Equisetum hyemale affine |
SCOURING RUSH |
| Equisetum laevigatum |
SMOOTH SCOURING RUSH |
| Eragrostis cilianensis |
STINK GRASS |
| Eragrostis frankii |
SANDBAR LOVE GRASS |
| Eragrostis pectinacea |
CAROLINA LOVE GRASS |
| Eragrostis spectabilis |
PURPLE LOVE GRASS |
| Eragrostis trichodes |
ICE CREAM GRASS |
| Erechtites hieracifolia |
FIRE WEED |
| Erigeron annuus |
ANNUAL FLEABANE |
| Erigeron strigosus |
DAISY FLEABANE |
| Eryngium yuccifolium |
RATTLESNAKE MASTER |
| Erysimum cheiranthoides |
WORMSEED MUSTARD |
| Erythronium albidum |
WHITE ADDER'S TONGUE |
| Euonymus atropurpureus |
BURNING BUSH |
| Eupatorium maculatum |
SPOTTED JOE PYE WEED |
| Eupatorium perfoliatum |
COMMON BONESET |
| Eupatorium rugosum |
WHITE SNAKEROOT |
| Eupatorium serotinum |
LATE BONESET |
| Euphorbia corollata |
FLOWERING SPURGE |
| Euphorbia esula |
LEAFY SPURGE |
| Euthamia graminifolia |
GRASSLEAF GOLDENROD |
| Festuca pratensis |
ENGLISH BLUEGRASS |
| Fragaria virginiana |
WILD STRAWBERRY |
| Fraxinus pennsylvanica |
GREEN ASH |
| Froelichia floridana campestris |
COTTONWEED |
| Froelichia gracilis |
COTTONWEED |
| Galium aparine |
ANNUAL BEDSTRAW |
| Galium asprellum |
ROUGH BEDSTRAW |
| Galium concinnum |
SHINING BEDSTRAW |
| Galium obtusum |
WILD MADDER |
| Galium tinctorium |
STIFF BEDSTRAW |
| Gaura biennis |
BUTTERFLY-WEED |
| Gentianella quinquefolia occidentalis |
STIFF GENTIAN |
| Geranium maculatum |
WILD GERANIUM |
| Geum canadense |
WHITE AVENS |
| Geum laciniatum |
ROUGH AVENS |
| Gleditsia triacanthos |
HONEY LOCUST |
| Glyceria striata |
FOWL MANNA GRASS |
| Gnaphalium obtusifolium |
CATFOOT |
| Gnaphalium purpureum |
EARLY CUDWEED |
| Hackelia virginiana |
STICKSEED |
| Hedeoma hispida |
ROUGH PENNYROYAL |
| Hedyotis crassifolia |
TINY BLUETS |
| Helenium autumnale |
AUTUMN SNEEZEWEED |
| Helianthemum bicknellii |
FROSTWEED |
| Helianthemum canadense |
COMMON ROCKROSE |
| Helianthus decapetalus |
PALE SUNFLOWER |
| Helianthus divaricatus |
DIVERGENT SUNFLOWER |
| Helianthus grosseserratus |
SAWTOOTH SUNFLOWER |
| Helianthus hirsutus |
BRISTLY SUNFLOWER |
| Helianthus occidentalis |
WESTERN SUNFLOWER |
| Helianthus petiolaris |
KANSAS SUNFLOWER |
| Helianthus rigidus |
PRAIRIE SUNFLOWER |
| Helianthus strumosus |
PALE-LEAVED SUNFLOWER |
| Helianthus tuberosus subcanescens |
JERUSALEM ARTICHOKE |
| Heliopsis helianthoides |
FALSE SUNFLOWER |
| Hemerocallis fulva |
DAY LILY |
| Hepatica nobilis acuta |
SHARP-LOBED HEPATICA |
| Heracleum lanatum |
COW PARSNIP |
| Heterotheca camporum |
GOLDEN ASTER |
| Heuchera richardsonii grayana |
PRAIRIE ALUMROOT |
| Hibiscus trionum |
FLOWER-OF-AN-HOUR |
| Hierochloe odorata |
SWEET GRASS |
| Hordeum jubatum |
FOX-TAIL BARLEY |
| Hudsonia tomentosa |
BEACH HEATH |
| Humulus lupulus |
COMMON HOPS |
| Hypericum majus |
ST. JOHNS-WORT |
| Hypericum perforatum |
COMMON 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 hederacea |
IVY-LEAVED MORNING GLORY |
| Iris shrevei |
SOUTHERN BLUE FLAG |
| Isopyrum biternatum |
FALSE RUE ANEMONE |
| Juglans nigra |
BLACK WALNUT |
| Juncus acuminatus |
KNOTTY-LEAVED RUSH |
| Juncus interior |
INLAND RUSH |
| Juncus tenuis |
PATH RUSH |
| Juniperus virginiana |
EASTERN RED CEDAR |
| Koeleria macrantha |
CRESTED HAIR GRASS |
| Krigia biflora |
FALSE DANDELOIN |
| Krigia virginica |
DWARF DANDELION |
| Lactuca canadensis |
CANADA LETTUCE |
| Lactuca floridana |
BLUE LETTUCE |
| Lactuca serriola |
COMPASS PLANT |
| Laportea canadensis |
CANADA WOOD NETTLE |
| Lechea tenuifolia |
NARROW-LEAVED PINWEED |
| Leersia oryzoides |
RICE CUTGRASS |
| Lemna minor |
COMMON DUCKWEED |
| Lemna perpusilla |
LEAST DUCKWEED |
| Lemna trisulca |
IVY-LEAVED DUCKWEED |
| Leonurus cardiaca |
MOTHERWORT |
| Lepidium campestre |
FIELD CRESS |
| Lepidium campestre |
FIELD CRESS |
| Lepidium densiflorum |
PEPPERGRASS |
| Lepidium virginicum |
COMMON PEPPERGRASS |
| Leptoloma cognatum |
FALL WITCH GRASS |
| Leptoloma cognatum |
FALL WITCH GRASS |
| Lespedeza capitata |
BUSH CLOVER |
| Lespedeza violacea |
VIOLET BUSH CLOVER |
| Liatris aspera |
ROUGH BLAZING STAR |
| Liatris pycnostachya |
BUTTON SNAKEROOT |
| Lilium philadelphicum andinum |
WOOD LILY |
| Linaria canadensis |
BLUE TOADFLAX |
| Linaria vulgaris |
BUTTER-AND-EGGS |
| Lindernia dubia anagallidea |
SLENDER FALSE PIMPERNEL |
| Linum sulcatum |
GROOVED YELLOW FLAX |
| Lithospermum canescens |
HOARY PUCCOON |
| Lithospermum caroliniense |
HAIRY PUCCOON |
| Lithospermum caroliniense |
HAIRY PUCCOON |
| Lithospermum incisum |
YELLOW PUCCOON |
| Lobelia inflata |
INDIAN TOBACCO |
| Lobelia siphilitica |
BLUE CARDINAL-FLOWER |
| Lobelia spicata |
SPIKED LOBELIA |
| Lolium perenne |
CRESTED RYE GRASS |
| Lonicera prolifera |
GRAPE HONEYSUCKLE |
| Ludwigia alternifolia |
SEEDBOX |
| Ludwigia polycarpa |
FALSE LOOSESTRIFE |
| Lychnis alba |
EVENING CAMPION |
| Lychnis alba |
EVENING CAMPION |
| Lycium barbarum |
COMMON MATRIMONY VINE |
| Lycopus americanus |
COMMON WATER HOREHOUND |
| Lycopus uniflorus |
NOTHERN BUGLE WEED |
| Lysimachia ciliata |
FRINGED LOOSESTRIFE |
| Lysimachia hybrida |
LOOSESTRIFE |
| Lysimachia lanceolata |
LANCE-LEAVED LOOSESTRIFE |
| Lysimachia terrestris |
SWAMP CANDLES |
| Lythrum alatum |
WINGED LOOSESTRIFE |
| Maclura pomifera |
HEDGE APPLE |
| Malus ioensis |
IOWA CRAB APPLE |
| 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 arvensis villosa |
FIELD MINT |
| Mertensia virginica |
BLUEBELLS |
| Mimulus alatus |
WINGED MONKEY FLOWER |
| Mimulus ringens |
MONKEY FLOWER |
| Mirabilis nyctaginea |
WILD FOUR-O'CLOCK |
| Miscanthus sacchariflorus |
PLUME GRASS |
| Mollugo verticillatus |
CARPETWEED |
| Monarda fistulosa |
WILD BERGAMOT |
| Monarda punctata villicaulis |
HORSEMINT |
| Monotropa uniflora |
INDIAN PIPE |
| Morus alba tatarica |
RUSSIAN MULBERRY |
| Muhlenbergia frondosa |
COMMON SATIN GRASS |
| Muhlenbergia racemosa |
GREEN MUHLY |
| Muhlenbergia schreberi |
NIMBLE WILL |
| Myriophyllum heterophyllum |
WATER MILFOIL |
| Najas flexilis |
BUSHY PONDWEED |
| Napaea dioica |
GLADE MALLOW |
| Nelumbo lutea |
AMERICAN LOTUS |
| Nepeta cataria |
CATNIP |
| Oenothera biennis |
EVENING PRIMROSE |
| Oenothera biennis canescens |
EVENING PRIMROSE |
| Oenothera rhombipetala |
SAND PRIMROSE |
| Onoclea sensibilis |
SENSITIVE FERN |
| Opuntia humifusa |
PRICKLY-PEAR |
| Opuntia macrorhiza |
BIGROOT PRICKLY-PEAR |
| Osmorhiza claytonii |
SWEET CICELY |
| Osmorhiza longistylis |
ANISE-ROOT |
| Osmunda claytoniana |
INTERRUPTED FERN |
| Ostrya virginiana |
HOP HORNBEAM |
| Oxalis dillenii |
YELLOW WOOD SORREL |
| Oxalis stricta |
YELLOW WOOD SORREL |
| Oxalis violacea |
PURPLE OXALIS |
| Panicum capillare |
WITCH GRASS |
| Panicum dichotomiflorum |
FALL PANICUM |
| Panicum virgatum |
PRAIRIE SWITCHGRASS |
| Parietaria pensylvanica |
PENNSYLVANIA PELLITORY |
| Parthenium integrifolium |
AMERICAN FEVERFEW |
| Parthenocissus quinquefolia |
VIRGINIA CREEPER |
| Paspalum ciliatifolium |
BEADGRASS |
| Pastinaca sativa |
PARSNIP |
| Pellaea glabella |
PURPLE CLIFFBRAKE |
| Penstemon digitalis |
FOXGLOVE BEARD-TONGUE |
| Penstemon grandiflorus |
LARGE-FLOWERED BEARD TONGUE |
| Penstemon pallidus |
PALE BEARD-TONGUE |
| Penthorum sedoides |
DITCH STONECROP |
| Phleum pratense |
TIMOTHY |
| Phlox bifida |
CLEFF PHLOX |
| Phlox maculata |
WILD SWEET WILLIAM |
| Phlox pilosa |
DOWNY PHLOX |
| Phryma leptostachya |
LOPSEED |
| Phyla lanceolata |
FOG-FRUIT |
| Physalis angulata |
GROUND CHERRY |
| Physalis heterophylla |
GROUND CHERRY |
| Physalis pubescens |
ANNUAL GROUND CHERRY |
| Physalis subglabrata |
SMOOTH GROUND CHERRY |
| Physalis virginiana |
GROUND CHERRY |
| Physostegia speciosa |
FALSE DRAGONHEAD |
| Physostegia virginiana |
FALSE DRAGONHEAD |
| Pilea pumila |
CANADA CLEARWEED |
| Plantago aristata |
BRACTED PLANTAIN |
| Plantago lanceolata |
BUCKHORN |
| Plantago patagonica brevicarpa |
SALT AND PEPPER PLANT |
| Plantago rugelii |
RED-STALKED PLANTAIN |
| Plantago virginica |
DWARF 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 |
| Polanisia jamesii |
JAMES' CLAMMYWEED |
| Polemonium reptans |
JACOB'S-LADDER |
| Polygala polygama obtusata |
PURPLE MILKWORT |
| Polygala sanguinea |
FIELD MILKWORT |
| Polygala verticillata |
WHORLED MILKWORT |
| Polygonatum commutatum |
GREAT SOLOMON SEAL |
| Polygonella articulata |
JOINTWEED |
| Polygonum amphibium |
WATER SMARTWEED |
| Polygonum arenastrum |
KNOTWEED |
| Polygonum convolvulus |
BLACK BIRDWEED |
| Polygonum hydropiper |
COMMON SMARTWEED |
| Polygonum lapathifolium |
CURTTOP LADY'S THUMB |
| Polygonum pensylvanicum laevigatum |
PENNSYLVANIA SMARTWEED |
| Polygonum punctatum |
DOTTED SMARTWEED |
| Polygonum ramosissimum |
BUSHY KNOTWEED |
| Polygonum sagittatum |
ARROWLEAF TEARTHUMB |
| Polygonum scandens |
CLIMBING BUCKWHEAT |
| Polygonum tenue |
SLENDER KNOTWEED |
| Polygonum virginianum |
VIRGINIA KNOTWEED |
| Polytaenia nuttallii |
PRAIRIE PARSLEY |
| Populus tremuloides |
QUAKING ASPEN |
| Portulaca oleracea |
PURSLANE |
| Potamogeton foliosus |
LEAFY PONDWEED |
| Potamogeton nodosus |
AMERICAN PONDWEED |
| Potamogeton pectinatus |
COMB PONDWEED |
| Potamogeton pusillus |
BABY 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 susquehanae |
SAND CHERRY |
| Prunus virginiana |
COMMON CHOKECHERRY |
| Ptelea trifoliata |
WAFER ASH |
| Pycnanthemum tenuifolium |
SLENDER MOUNTAIN MINT |
| Pycnanthemum virginianum |
COMMON MOUNTAIN MINT |
| Pyrola elliptica |
SHINLEAF |
| Quercus alba |
WHITE OAK |
| Quercus ellipsoidalis |
HILL'S OAK |
| Quercus macrocarpa |
BURR OAK |
| Quercus palustris |
PIN OAK |
| Quercus velutina |
BLACK OAK |
| Ranunculus abortivus |
LITTLE-LEAF BUTTERCUP |
| Ranunculus fascicularis |
EARLY BUTTERCUP |
| Ranunculus longirostris |
LONGBEAK BUTTERCUP |
| Ranunculus septentrionalis |
SWAMP BUTTERCUP |
| Ranunculus trichophyllus |
WHITE WATER-CROWFOOT |
| Ratibida pinnata |
DROOPING CONEFLOWER |
| Rhus aromatica |
AROMATIC SUMAC |
| Rhus aromatica arenaria |
BEACH SUMAC |
| Rhus glabra |
SMOOTH SUMAC |
| Ribes cynosbati |
DOGBERRY |
| Ribes missouriense |
MISSOURI GOOSEBERRY |
| Robinia pseudoacacia |
BLACK LOCUST |
| Rorippa islandica fernaldiana |
MARSH 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 |
| Rotala ramosior |
TOOTH-CUP |
| Rubus occidentalis |
BLACK RASPBERRY |
| Rubus pensylvanicus |
BLACKBERRY |
| Rudbeckia hirta |
BLACK-EYED SUSAN |
| Rudbeckia laciniata |
CUTLEAF CONEFLOWER |
| Rudbeckia subtomentosa |
FRAGRANT CONEFLOWER |
| Ruellia humilis |
HAIRY RUELLIA |
| Rumex acetosella |
COMMON SORREL |
| Rumex altissimus |
PALE DOCK |
| Rumex maritimus fueginus |
GOLDEN DOCK |
| Rumex mexicanus |
DOCK |
| Rumex verticillatus |
SWAMP DOCK |
| Sagittaria latifolia |
ARROWHEAD |
| Salix amygdaloides |
PEACH-LEAVED WILLOW |
| Salix exigua |
SANDBAR WILLOW |
| Salix humilis |
PRAIRIE WILLOW |
| Salix humilis hyporhysa |
PRAIRIE WILLOW |
| Salix nigra |
BLACK WILLOW |
| Salsola iberica |
RUSSIAN THISTLE |
| Sambucus canadensis |
COMMON ELDER |
| Sanguinaria canadensis |
BLOODROOT |
| Sanicula canadensis |
CANADIAN BLACK SNAKEROOT |
| Sanicula gregaria |
COMMON SNAKEROOT |
| Saponaria officinalis |
BOUNCING BET |
| Schizachyrium scoparium |
LITTLE BLUESTEM |
| Scirpus americanus |
AMERICAN BULRUSH |
| Scirpus atrovirens |
DARK GREEN RUSH |
| Scirpus cyperinus |
WOOL GRASS |
| Scirpus pendulus |
RED BULRUSH |
| Scrophularia lanceolata |
EARLY FIGWORT |
| Scrophularia marilandica |
LATE FIGWORT |
| Scutellaria leonardii |
SMALL SKULLCAP |
| Scutellaria parvula |
SMALL SKULLCAP |
| Secale cereale |
RYE |
| Selaginella rupestris |
ROCK SELAGINELLA |
| Senecio pauperculus |
BALSAM GROUNDSEL |
| Senecio plattensis |
PRAIRIE GROUNDSEL |
| Setaria faberi |
GIANT FOXTAIL |
| Setaria glauca |
PIGEON GRASS |
| Setaria viridis |
COMMON FOXTAIL |
| Sicyos angulatus |
BUR CUCUMBER |
| Silene antirrhina |
SLEEPY CATCHFLY |
| Silene cserei |
GLAUCOUS CAMPION |
| Silene stellata |
STARRY CAMPION |
| Silphium integrifolium |
WHOLELEAF ROSINWEED |
| Silphium laciniatum |
COMPASS-PLANT |
| Silphium perfoliatum |
CUP PLANT |
| Sisymbrium altissimum |
TUMBLE MUSTARD |
| Sisymbrium officinale |
HEDGE MUSTARD |
| Sisyrinchium albidum |
BLUE-EYED GRASS |
| Sisyrinchium campestre |
PRAIRIE BLUE-EYED GRASS |
| Smilacina racemosa |
FALSE SOLOMON SEAL |
| Smilacina stellata |
STARRY FALSE SOLOMON SEAL |
| Smilax ecirrata |
UPRIGHT CARRION FLOWER |
| Smilax hispida |
BRISTLY GREENBRIER |
| Smilax lasioneuron |
COMMON CARRION FLOWER |
| Solanum carolinense |
HORSE-NETTLE |
| Solanum cornutum |
BUFFALO-BUR |
| Solanum ptycanthum |
BLACK NIGHTSHADE |
| Solidago caesia |
BLUESTEM GOLDENROD |
| Solidago canadensis |
CANADA GOLDENROD |
| Solidago gigantea |
LATE GOLDENROD |
| Solidago juncea |
EARLY GOLDENROD |
| Solidago missouriensis |
MISSOURI GOLDENROD |
| Solidago nemoralis |
DYERSWEED GOLDENROD |
| Solidago ptarmicoides |
STIFF ASTER |
| Solidago rigida |
RIGID GOLDENROD |
| Solidago rigida |
RIGID GOLDENROD |
| Solidago speciosa |
SHOWY GOLDENROD |
| Solidago ulmifolia |
ELM-LEAVED GOLDENROD |
| Sonchus arvensis glabrescens |
|
| Sonchus oleraceus |
COMMON SOWTHISTLE |
| Sorghastrum nutans |
INDIAN GRASS |
| Sparganium eurycarpum |
BURREED |
| Spartina pectinata |
FRESHWATER CORD GRASS |
| Sphenopholis obtusata |
PRAIRIE WEDGE GRASS |
| Sphenopholis obtusata major |
WEDGE GRASS |
| Spiraea alba |
MEADOW-SWEET |
| Spiranthes cernua |
NODDING LADIES-TRESSES |
| Spiranthes magnicamporum |
DUNE LADIES' TRESSES |
| Spirodela polyrhiza |
BIG DUCKWEED |
| Sporobolus cryptandrus |
SAND DROPSEED |
| Sporobolus vaginiflorus |
NORTHERN RUSH GRASS |
| Stachys palustris homotricha |
WOUNDWORT |
| Stachys tenuifolia hispida |
HAIRY HEDGE NETTLE |
| Staphylea trifolia |
BLADDERNUT |
| Stellaria media |
COMMON CHICKWEED |
| Stipa spartea |
NEEDLE GRASS |
| Strophostyles helvola |
WILD BEAN |
| Strophostyles leiosperma |
WILD BEAN |
| Talinum rugospermum |
FLOWER-OF-AN-HOUR |
| Tanacetum vulgare |
COMMON TANSY |
| Taraxacum officinale |
COMMON DANDELION |
| Tephrosia virginiana |
GOAT'S RUE |
| Teucrium canadense virginicum |
AMERICAN GERMANDER |
| Thalictrum dasycarpum |
PURPLE MEADOW RUE |
| Thalictrum dasycarpum hypoglaucum |
MEADOW RUE |
| Thalictrum revolutum |
WAXY MEADOW RUE |
| Thalictrum thalictroides |
RUE ANEMONE |
| Thaspium trifoliatum |
MEADOW PARSNIP |
| Thlaspi arvense |
FIELD PENNY CRESS |
| Tilia americana |
AMERICAN LINDEN |
| Tomanthera auriculata |
AURICULATE FALSE FOXGLOVE |
| Toxicodendron radicans |
POISON IVY |
| Tradescantia ohiensis |
SPIDERWORT |
| Tragopogon dubius |
GOAT'S BEARD |
| Tridens flavus |
FALSE RED TOP |
| Trifolium hybridum |
ALSIKE CLOVER |
| Trifolium pratense |
RED CLOVER |
| Trifolium repens |
WHITE CLOVER |
| Trillium flexipes |
DECLINED TRILLIUM |
| Trillium recurvatum |
RED TRILLIUM |
| Triodanis perfoliata |
VENUS' LOOKING-GLASS |
| Triosteum perfoliatum |
LATE HORSE GENTIAN |
| Triplasis purpurea |
PURPLE SANDGRASS |
| Typha latifolia |
CATTAIL |
| Ulmus americana |
AMERICAN ELM |
| Ulmus rubra |
SLIPPERY ELM |
| Urtica dioica |
STINGING NETTLE |
| Utricularia vulgaris |
COMMOM BLADDERWORT |
| Uvularia grandiflora |
BIG MERRY BELLS |
| Verbascum thapsus |
WOOLLY MULLEIN |
| Verbena bracteata |
CREEEPING VERVAIN |
| Verbena hastata |
BLUE VERVAIN |
| Verbena stricta |
HOARY VERVAIN |
| Verbena urticifolia |
WHITE VERVIAN |
| Vernonia fasciculata |
COMMON IRONWEED |
| Veronica arvensis |
CORN SPEEDWELL |
| Veronica peregrina |
PURSLANE SPEEDWELL |
| Veronicastrum virginicum |
CULVER'S ROOT |
| Viburnum lentago |
NANNYBERRY |
| Vicia villosa |
WINTER VETCH |
| Viola pedata |
BIRDFOOT VIOLET |
| Viola pedatifida |
PRAIRIE VIOLET |
| Viola pubescens eriocarpa |
SMOOTH YELLOW VIOLET |
| Viola sororia |
WOOLLY BLUE VIOLET |
| Vitis riparia |
RIVERVBANK GRAPE |
| Vitis vulpina |
FROST GRAPE |
| Vulpia octoflora |
SIX-WEEKS FESCUE |
| Vulpia octoflora tenella |
SIX-WEEKS FESCUE |
| Wolffia columbiana |
COMMON WATERMEAL |
| Woodsia obtusa |
COMMON WOODSIA |
| Xanthium strumarium canadensis |
COCKLE BUR |
| Zannichellia palustris |
COMMON POOLMAT |
| Zanthoxylum americanum |
PRICKLY ASH |
| Zizia aptera |
HEART-LEAVED MEADOW PARSNIP |
| Zizia aurea |
GOLDEN ALEXANDERS |