| Acalypha rhomboidea |
THREE-SEEDED MERCURY |
| Acalypha virginica |
THREE-SEEDED MERCURY |
| Acer negundo |
ASH-LEAVED MAPLE |
| Acer saccharinum |
RIVER MAPLE |
| Acer saccharum |
HARD MAPLE |
| Achillea millefolium |
COMMON MILFOIL |
| 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 nepetoides |
YELLOW GIANT HYSSOP |
| Agastache scrophulariaefolia |
PURPLE GIANT HYSSOP |
| Agrimonia gryposepala |
TALL AGRIMONY |
| Agrimonia parviflora |
SWAMP AGRIMONY |
| Agrimonia pubescens |
SOFT AGRIMONY |
| Agropyron repens |
COUCH GRASS |
| Agrostemma githago |
CORN COCKLE |
| Agrostis alba |
RED TOP |
| Agrostis capillaris |
COLONIAL BENT GRASS |
| Agrostis scabra |
ROUGH BENT GRASS |
| Ailanthus altissima |
TREE-OF-HEAVEN |
| Alisma plantago aquatica parviflorum |
COMMON WATER PLANTAIN |
| Allium canadense |
WILD GARLIC |
| Allium tricoccum |
RAMP |
| Allium vineale |
FIELD GARLIC |
| Alyssum alyssoides |
PALE ALYSSUM |
| Amaranthus tuberculatus |
TALL WATERHEMP |
| Ambrosia artemisiifolia |
BITTERWEED |
| Ambrosia psilostachya |
WESTERN RAGWEED |
| Ambrosia trifida |
BUFFALO WEED |
| Ammannia coccinea |
LONG-LEAVED AMMANNIA |
| Amorpha canescens |
LEAD PLANT |
| Amorpha fruticosa |
FALSE INDIGO BUSH |
| Amphicarpa bracteata comosa |
HOG PEANUT |
| Andropogon gerardii |
BIG BLUESTEM |
| Androsace occidentalis |
ANDROSACE |
| Anemone canadensis |
MEADOW ANEMONE |
| Anemone caroliniana |
CAROLINA ANEMONE |
| Anemone cylindrica |
CANDLE ANEMONE |
| Anemone virginiana |
TALL ANEMONE |
| Antennaria neglecta |
CAT'S FOOT |
| Antennaria plantaginifolia |
EVERLASTING |
| Anthemis cotula |
DOG FENNEL |
| Anthoxanthum aristatum |
ANNUAL SWEET GRASS |
| Apios americana |
GROUNDNUT |
| Apocynum cannabinum |
DOGBANE |
| Aquilegia canadensis |
COLUMBINE |
| Arabis laevigata |
SMOOTH ROCK CRESS |
| Arabis lyrata |
LYRE-LEAVED ROCK CRESS |
| Aralia nudicaulis |
WILD SARSAPARILLA |
| Aralia racemosa |
AMERICAN SPIKENARD |
| Arctium minus |
COMMON BURDOCK |
| Arisaema triphyllum |
INDIAN TURNIP |
| Aristida curtissii |
CURTISS THREE AWN GRASS |
| Aristida oligantha |
PLAINS THREE AWN GRASS |
| Aristida tuberculosa |
BEACH THREE AWN GRASS |
| Artemisia annua |
ANNUAL WORMWOOD |
| Artemisia campestris |
BEACH WORMWOOD |
| Artemisia ludoviciana |
LOUISIANA SAGEBRUSH |
| Artemisia ludoviciana gnaphalodes |
|
| Artemisia serrata |
SAW-TOOTHED SAGEBRUSH |
| Asarum canadense reflexum |
CANADA WILD GINGER |
| Asclepias amplexicaulis |
SAND MILKWEED |
| Asclepias hirtella |
TALL GREEN MILKWEED |
| Asclepias incarnata |
SWAMP MILKWEED |
| Asclepias sullivantii |
PRAIRIE MILKWEED |
| Asclepias syriaca |
COMMON MILKWEED |
| Asclepias verticillata |
HORSETAIL MILKWEED |
| Asclepias viridiflora |
GREEN MILKWEED |
| Asplenium platyneuron |
EBONY SPLEENWORT |
| Asplenium rhizophyllum |
WALKING FERN |
| Aster azureus |
AZURE ASTER |
| Aster drummondii |
DRUMMOND'S ASTER |
| Aster ericoides prostratus |
HEATH ASTER |
| Aster novae-angliae |
NEW ENGLAND ASTER |
| Aster pilosus |
HAIRY ASTER |
| Aster schreberi |
SCHREBER'S ASTER |
| Aster sericeus |
SILKY ASTER |
| Astragalus canadensis |
CANADIAN MILK VETCH |
| Astragalus tennesseensis |
GROUND PLUM |
| Athyrium angustum |
LADY FERN |
| Azolla mexicana |
MEXICAN AZOLLA |
| Bacopa rotundifolia |
WATER HYSSOP |
| Baptisia lactea |
WHITE WILD INDIGO |
| Baptisia leucophaea |
CREAM WILD INDIGO |
| Belamcanda chinensis |
BLACKBERRY LILLY |
| Berteroa incana |
HOARY ALYSSUM |
| Besseya bullii |
KITTEN TAILS |
| Betula nigra |
RED BIRCH |
| Bidens aristosa |
SWAMP MARIGOLD |
| Bidens bipinnata |
SPANISH NEEDLES |
| Bidens cernua |
NODDING BEGGAR-TICKS |
| Bidens connata |
PURPLESTEM BEGGAR-TICKS |
| Bidens vulgata |
STICKTIGHT |
| Boehmeria cylindrica |
FALSE NETTLE |
| Botrychium dissectum obliquum |
BRONZE FERN |
| Botrychium virginianum |
RATTLESNAKE FERN |
| Bouteloua hirsuta |
BLACK GRAMMA |
| Brickellia eupatorioides |
FALSE BONESET |
| Bromus commutatus |
HAIRY BROME |
| Bromus inermis |
AWNLESS BROME GRASS |
| Bromus pubescens |
CANADA BROME GRASS |
| Bromus tectorum |
CHEAT GRASS BROME |
| Buglossoides arvense |
CORN GROMWELL |
| Cacalia plantaginea |
PRAIRIE INDIAN PLANTAIN |
| Callirhoe triangulata |
POPPY MALLOW |
| Camassia scilloides |
WILD HYACINTH |
| Campanula americana |
AMERICAN BELLFLOWER |
| Cannabis sativa |
HASHISH |
| Capsella bursa-pastoris |
SHEPERD'S-PURSE |
| Cardamine bulbosa |
BULB BITTERCRESS |
| Cardamine parviflora arenicola |
SMALL-FLOWERED BITTER CRESS |
| Cardaria draba |
HOARY CRESS |
| Carduus nutans |
MUSK BRISTLE THISTLE |
| Carex aggregata |
|
| Carex albursina |
SEDGE |
| Carex blanda |
WOODLAND SEDGE |
| Carex brevior |
FESCUE SEDGE |
| Carex cephaloidea |
|
| Carex conjuncta |
|
| Carex conoidea |
SEDGE |
| Carex cristatella |
SEDGE |
| Carex gracilescens |
SEDGE |
| Carex granularis |
MEADOW SEDGE |
| Carex gravida |
HEAVY SEDGE |
| Carex grayi |
BUR SEDGE |
| Carex grisea |
SEDGE |
| Carex hystricina |
BOTTLEBRUSH SEDGE |
| Carex lanuginosa |
WOOLY SEDGE |
| Carex lasiocarpa |
SEDGE |
| Carex lupulina |
HOP SEDGE |
| Carex muhlenbergii |
|
| Carex normalis |
SEDGE |
| Carex pensylvanica |
PENNSYLVANIA SEDGE |
| Carex rosea |
|
| Carex scoparia |
BROOM SEDGE |
| Carex shortiana |
SEDGE |
| Carex sparganioides |
|
| Carex sprengelii |
LONG-BEAKED SEDGE |
| Carex tenera |
SEDGE |
| Carex tribuloides |
SEDGE |
| Carex trichocarpa |
SEDGE |
| Carex typhina |
SEDGE |
| Carex vulpinoidea |
FOX SEDGE |
| Carya cordiformis |
BITTERNUT HICKORY |
| Carya glabra |
PIGNUT HICKORY |
| Carya illinoensis |
PECAN |
| Carya ovata |
SCALY-BARK HICKORY |
| Carya tomentosa |
MOCKERNUT HICKORY |
| Cassia fasciculata |
GOLDEN CASSIA |
| 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 nutans |
NODDING MOUSE-EAR CHICKWEED |
| Cerastium nutans brachypodum |
MOUSE-EAR CHICKWEED |
| Cerastium vulgatum |
COMMON MOUSE-EAR CHICKWEED |
| Ceratophyllum demersum |
COONTAIL |
| Cercis canadensis |
EASTERN REDBUD |
| Chamaesyce geyeri |
SPURGE |
| Chamaesyce humistrata |
MILK SPURGE |
| Chamaesyce maculata |
NODDING SPURGE |
| Chamaesyce supina |
MILK SPURGE |
| Chelone glabra |
WHITE TURTLEHEAD |
| Chenopodium album |
LAMB'S QUARTERS |
| Chenopodium botrys |
JERUSALEM-OAK |
| Chenopodium desiccatum leptophylloides |
NARROW-LEAVED GOOSEFOOT |
| Chenopodium gigantospermum |
MAPLE-LEAVED GOOSEFOOT |
| Chenopodium pallescens |
NARROW-LEAVED GOOSEFOOT |
| Cichorium intybus |
BLUE SAILORS |
| Cicuta maculata |
WATER HEMLOCK |
| Cinna arundinacea |
STOUTWOOD REED |
| Circaea lutetiana canadensis |
ENCHANTER'S NIGHTSHADE |
| Cirsium arvense |
CANADA THISTLE |
| Cirsium discolor |
FIELD THISTLE |
| Clematis pitcheri |
LEATHER FLOWER |
| Collomia linearis |
SLENDERLEAF COLLOMIA |
| Comandra umbellata |
BASTARD TOAD-FLAX |
| Commelina erecta |
DAY FLOWER |
| Conyza canadensis |
HORSEWEED |
| Coreopsis tinctoria |
GOLDEN COREOPSIS |
| Cornus drummondii |
ROUGH-LEAVED DOGWOOD |
| Cornus racemosa |
GRAY DOGWOOD |
| Corylus americana |
AMERICAN FILBERT |
| Crataegus calpodendron |
URN-SHAPED HAWTHORN |
| Crataegus crus-galli |
COCK-SPUR THORN |
| Crataegus mollis |
RED HAW |
| Croton capitatus |
CAPITATE CROTON |
| Croton glandulosus septentrionalis |
SAND CROTON |
| Cryptogramma stelleri |
SLENDER CLIFFBRAKE |
| Cryptotaenia canadensis |
HONEWORT |
| Cuscuta cephalanthi |
BUTTONBUSH DODDER |
| Cycloloma atriplicifolium |
TUMBLE RINGWING |
| Cyperus esculentus |
CHUFA |
| Cyperus ferruginescens |
SLENDER FLATSEDGE |
| Cyperus filiculmis |
FERN FLATSEDGE |
| Cyperus filiculmis macilentus |
|
| Cyperus rivularis |
BROOK FLAT SEDGE |
| Cyperus schweinitzii |
SCHWEINITZ FLATSEDGE |
| Cyperus strigosus |
STRAW COLORED FLATSEDGE |
| Cystopteris X tennesseensis |
TENNESSEE FRAGILE FERN |
| Cystopteris bulbifera |
BERRY BLADDER FERN |
| Cystopteris protrusa |
FRAGILE FERN |
| Dactylis glomerata |
ORCHARD GRASS |
| Dalea purpurea |
PURPLE PRAIRIE CLOVER |
| Dasistoma macrophylla |
MULLEIN FOXGLOVE |
| Daucus carota |
QUEEN-ANNE'S-LACE |
| Dentaria laciniata |
PEPPER-ROOT |
| Descurainia pinnata brachycarpa |
TANSY MUSTARD |
| Desmodium canadense |
SHOWY TICK TREFOIL |
| Desmodium canescens |
HOARY TICK TREFOIL |
| Desmodium glutinosum |
BEGGAR'S LICE |
| Desmodium illinoense |
ILLINOIS TICK TREFOIL |
| Dicentra cucullaria |
DUTCHMAN'S-BREECHES |
| Dichanthelium acuminatum fasciculatum |
PANIC GRASS |
| Dichanthelium oligosanthes scribnerianum |
SCRIBNER'S PANIC GRASS |
| Dichanthelium perlongum |
LONG-STALKED PANIC GRASS |
| Dichanthelium villosissimum pseudopubesc |
|
| Digitaria ischaemum |
SMOOTH CRAB GRASS |
| Digitaria sanguinalis |
HAIRY CRAB GRASS |
| Diodia teres |
POORJOE |
| Dioscorea villosa |
WILD YAM |
| Dipsacus laciniatus |
CUT-LEAVED TEASEL |
| Dodecatheon meadia |
SHOOTING STAR |
| Draba reptans |
WHITLOW GRASS |
| Draba reptans stellifera |
SMALL WHITLOW GRASS |
| Dryopteris carthusiana |
SPINULOSE WOODFERN |
| Echinacea pallida |
PALE PURPLE CONEFLOWER |
| Echinochloa muricata |
BARNYARD GRASS |
| Echinochloa muricata wiegandii |
BARNYARD GRASS |
| Eleocharis acicularis |
NEEDLE SPIKE RUSH |
| Eleocharis erythropoda |
|
| Eleocharis obtusa detonsa |
SPIKE RUSH |
| Eleocharis palustris |
|
| Eleusine indica |
GOOSE GRASS |
| Ellisia nyctelea |
AUNT LUCY |
| Elodea nuttallii |
ELODEA |
| Elymus canadensis |
CANADA WILD RYE |
| Elymus hystrix |
BOTTLEBRUSH GRASS |
| Elymus villosus |
HAIRY WILD RYE |
| Elymus virginicus |
LYME GRASS |
| Equisetum arvense |
COMMON HORSETAIL |
| Equisetum fluviatile |
WATER HORSETAIL |
| Equisetum hyemale affine |
SCOURING RUSH |
| Equisetum laevigatum |
SMOOTH SCOURING RUSH |
| Eragrostis cilianensis |
STINK GRASS |
| Eragrostis pectinacea |
CAROLINA LOVE GRASS |
| Eragrostis spectabilis |
PURPLE LOVE GRASS |
| Erianthus ravennae |
PLUME GRASS |
| Erigeron annuus |
ANNUAL FLEABANE |
| Erigeron strigosus |
DAISY FLEABANE |
| Eriophorum viridi-carinatum |
COTTON SEDGE |
| Erythronium albidum |
WHITE ADDER'S TONGUE |
| Euonymus atropurpureus |
BURNING BUSH |
| Eupatorium altissimum |
TALL BONESET |
| Eupatorium perfoliatum |
COMMON BONESET |
| Eupatorium purpureum |
GREEN-STEMMED JOE-PYE WEED |
| Eupatorium rugosum |
WHITE SNAKEROOT |
| Euphorbia corollata |
FLOWERING SPURGE |
| Euthamia graminifolia |
GRASSLEAF GOLDENROD |
| Festuca obtusa |
NODDING FESCUE |
| Festuca pratensis |
ENGLISH BLUEGRASS |
| Fragaria americana |
HILLSIDE STRAWBERRY |
| Fraxinus americana |
WHITE ASH |
| Fraxinus nigra |
BLACK ASH |
| Fraxinus pennsylvanica |
GREEN ASH |
| Fraxinus quadrangulata |
BLUE ASH |
| Froelichia floridana campestris |
COTTONWEED |
| Froelichia gracilis |
COTTONWEED |
| Galearis spectabilis |
SHOWY ORCHIS |
| Galium aparine |
ANNUAL BEDSTRAW |
| Galium circaezans |
WILD LICORICE |
| Galium tinctorium |
STIFF BEDSTRAW |
| Galium triflorum |
SWEET-SCENTED BEDSTRAW |
| Gaura biennis |
BUTTERFLY-WEED |
| Gentiana andrewsii |
CLOSED GENTIAN |
| Geranium maculatum |
WILD GERANIUM |
| Geum aleppicum |
YELLOW AVENS |
| Geum canadense |
WHITE AVENS |
| Gleditsia triacanthos |
HONEY LOCUST |
| Glyceria striata |
FOWL MANNA GRASS |
| Gnaphalium obtusifolium |
CATFOOT |
| Gratiola neglecta |
CLAMMY HEDGE HYSSOP |
| Gymnocladus dioicus |
KENTUCKY COFFEETREE |
| Hackelia virginiana |
STICKSEED |
| Hedeoma hispida |
ROUGH PENNYROYAL |
| Hedeoma pulegioides |
AMERICAN PENNYROYAL |
| Hedyotis crassifolia |
TINY BLUETS |
| Helenium autumnale |
AUTUMN SNEEZEWEED |
| Helianthemum bicknellii |
FROSTWEED |
| Helianthemum canadense |
COMMON ROCKROSE |
| Helianthus annuus |
COMMON SUNFLOWER |
| Helianthus decapetalus |
PALE SUNFLOWER |
| Helianthus grosseserratus |
SAWTOOTH SUNFLOWER |
| Helianthus occidentalis |
WESTERN SUNFLOWER |
| Helianthus petiolaris |
KANSAS SUNFLOWER |
| Helianthus rigidus |
PRAIRIE SUNFLOWER |
| Helianthus tuberosus subcanescens |
JERUSALEM ARTICHOKE |
| Heracleum lanatum |
COW PARSNIP |
| Heterotheca camporum |
GOLDEN ASTER |
| Heuchera richardsonii grayana |
PRAIRIE ALUMROOT |
| Hibiscus laevis |
HALBERD-LEAVED ROSE MALLOW |
| Hordeum jubatum |
FOX-TAIL BARLEY |
| Hordeum pusillum |
LITTLE BARLEY |
| Humulus japonicus |
JAPANESE HOPS |
| Hydrophyllum virginianum |
VIRGINIA WATERLEAF |
| Hypericum mutilum |
DWARF ST. JOHNS-WORT |
| Hypericum punctatum |
SPOTTED ST. JOHNS-WORT |
| Hypericum sphaerocarpum |
ROUND-FRUITED ST. JOHNS-WORT |
| Ipomoea lacunosa |
SMALL WHITE MORNING-GLORY |
| Juglans cinerea |
BUTTERNUT |
| Juglans nigra |
BLACK WALNUT |
| Juncus acuminatus |
KNOTTY-LEAVED RUSH |
| Juncus dudleyi |
DUDLEY RUSH |
| Juncus effusus solutus |
COMMON RUSH |
| Juncus interior |
INLAND RUSH |
| Juncus tenuis |
PATH RUSH |
| Juncus torreyi |
TORREY RUSH |
| Juniperus virginiana |
EASTERN RED CEDAR |
| Koeleria macrantha |
CRESTED HAIR GRASS |
| Kummerowia stipulacea |
KOREAN CLOVER |
| Lactuca canadensis |
CANADA LETTUCE |
| Lactuca serriola |
COMPASS PLANT |
| Laportea canadensis |
CANADA WOOD NETTLE |
| Lappula echinata |
BEGGAR'S LICE |
| Lappula redowskii occidentalis |
STICKWEED |
| Lathyrus palustris |
MARSH PEAVINE |
| Lechea stricta |
PINWEED |
| Lechea tenuifolia |
NARROW-LEAVED PINWEED |
| Leersia oryzoides |
RICE CUTGRASS |
| Leersia virginica |
WHITE GRASS |
| Lemna minor |
COMMON DUCKWEED |
| Lemna trisulca |
IVY-LEAVED DUCKWEED |
| Leonurus cardiaca |
MOTHERWORT |
| Lepidium campestre |
FIELD CRESS |
| Lepidium densiflorum |
PEPPERGRASS |
| Lepidium virginicum |
COMMON PEPPERGRASS |
| Leptoloma cognatum |
FALL WITCH GRASS |
| Lespedeza capitata |
BUSH CLOVER |
| Leucanthemum vulgare |
COMMON TANSY |
| Liatris aspera |
ROUGH BLAZING STAR |
| Liatris cylindracea |
CYLINDRICAL BLAZING STAR |
| Liatris pycnostachya |
BUTTON SNAKEROOT |
| Linaria genistifolia dalmatica |
DALMATIAN TOADFLAX |
| Lindernia dubia anagallidea |
SLENDER FALSE PIMPERNEL |
| Linum sulcatum |
GROOVED YELLOW FLAX |
| Liparis liliifolia |
LARGE TWAYBLADE |
| Lithospermum canescens |
HOARY PUCCOON |
| Lithospermum caroliniense |
HAIRY PUCCOON |
| Lithospermum incisum |
YELLOW PUCCOON |
| Lobelia cardinalis |
CARDINAL-FLOWER |
| Lobelia inflata |
INDIAN TOBACCO |
| Lobelia kalmii |
BOG LOBELIA |
| Lobelia siphilitica |
BLUE CARDINAL-FLOWER |
| Lobelia spicata |
SPIKED LOBELIA |
| Lolium perenne |
CRESTED RYE GRASS |
| Lonicera prolifera |
GRAPE HONEYSUCKLE |
| Lotus corniculatus |
BIRDSFOOT-TREFOIL |
| Ludwigia alternifolia |
SEEDBOX |
| Ludwigia polycarpa |
FALSE LOOSESTRIFE |
| Lychnis alba |
EVENING CAMPION |
| Lycopodium clavatum |
BOG CLUBMOSS |
| Lycopodium lucidulum |
SHINING CLUBMOSS |
| Lycopus americanus |
COMMON WATER HOREHOUND |
| Lysimachia X commixta |
LOOSESTRIFE |
| Lysimachia ciliata |
FRINGED LOOSESTRIFE |
| Lysimachia lanceolata |
LANCE-LEAVED LOOSESTRIFE |
| Lysimachia nummularia |
MONEYWORT |
| Lysimachia quadriflora |
NARROW-LEAVED LOOSESTRIFE |
| Lysimachia thyrsiflora |
TUFTED LOOSESTRIFE |
| Lythrum alatum |
WINGED LOOSESTRIFE |
| Lythrum salicaria |
PURPLE 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 |
| Mertensia virginica |
BLUEBELLS |
| Mimulus alatus |
WINGED MONKEY FLOWER |
| Mimulus ringens |
MONKEY FLOWER |
| Mirabilis nyctaginea |
WILD FOUR-O'CLOCK |
| Miscanthus sacchariflorus |
PLUME GRASS |
| Moehringia lateriflora |
BLUNTLEAF SANDWORT |
| Mollugo verticillatus |
CARPETWEED |
| Monarda fistulosa |
WILD BERGAMOT |
| Monarda punctata villicaulis |
HORSEMINT |
| Monotropa uniflora |
INDIAN PIPE |
| Morus alba |
WHITE MULBERRY |
| Muhlenbergia frondosa |
COMMON SATIN GRASS |
| Myosotis stricta |
SMALL-FLOWERED FORGET-ME-NOT |
| Napaea dioica |
GLADE MALLOW |
| Nelumbo lutea |
AMERICAN LOTUS |
| Nepeta cataria |
CATNIP |
| Nymphaea tuberosa |
WHITE WATER LILY |
| Oenothera biennis |
EVENING PRIMROSE |
| Oenothera rhombipetala |
SAND PRIMROSE |
| Onoclea sensibilis |
SENSITIVE FERN |
| Onosmodium molle occidentale |
MARBLESEED |
| Osmorhiza claytonii |
SWEET CICELY |
| Osmorhiza longistylis |
ANISE-ROOT |
| 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 dichotomiflorum |
FALL PANICUM |
| Panicum virgatum |
PRAIRIE SWITCHGRASS |
| Parietaria pensylvanica |
PENNSYLVANIA PELLITORY |
| Parthenocissus quinquefolia |
VIRGINIA CREEPER |
| Paspalum ciliatifolium |
BEADGRASS |
| Pastinaca sativa |
PARSNIP |
| Pedicularis canadensis |
LOUSEWORT |
| Pedicularis lanceolata |
SWAMP WOOD BETONY |
| Pellaea glabella |
PURPLE CLIFFBRAKE |
| Penstemon digitalis |
FOXGLOVE BEARD-TONGUE |
| Penstemon pallidus |
PALE BEARD-TONGUE |
| Penthorum sedoides |
DITCH STONECROP |
| Phalaris arundinacea |
REED CANARY GRASS |
| Phleum pratense |
TIMOTHY |
| Phlox divaricata laphamii |
BLUE PHLOX |
| Phlox maculata |
WILD SWEET WILLIAM |
| Phlox pilosa |
DOWNY PHLOX |
| Phryma leptostachya |
LOPSEED |
| Phyla lanceolata |
FOG-FRUIT |
| Physalis heterophylla |
GROUND CHERRY |
| Physalis subglabrata |
SMOOTH GROUND CHERRY |
| Physalis virginiana |
GROUND CHERRY |
| Physostegia speciosa |
FALSE DRAGONHEAD |
| Physostegia virginiana |
FALSE DRAGONHEAD |
| Plantago aristata |
BRACTED PLANTAIN |
| Plantago lanceolata |
BUCKHORN |
| Plantago patagonica brevicarpa |
SALT AND PEPPER PLANT |
| Plantago rugelii |
RED-STALKED PLANTAIN |
| Plantago virginica |
DWARF PLANTAIN |
| Platanthera leucophaea |
PRAIRIE WHITE FRINGED ORCHID |
| Platanus occidentalis |
BUTTONWOOD |
| Poa compressa |
CANADIAN BLUEGRASS |
| Poa pratensis |
KENTUCKY BLUEGRASS |
| Podophyllum peltatum |
MAYAPPLE |
| Poinsettia dentata |
WILD POINSETTIA |
| Polanisia dodecandra |
CLAMMYWEED |
| Polemonium reptans |
JACOB'S-LADDER |
| Polygala sanguinea |
FIELD MILKWORT |
| Polygala senega |
SENECA SNAKEROOT |
| Polygonatum commutatum |
GREAT SOLOMON SEAL |
| Polygonum amphibium |
WATER SMARTWEED |
| Polygonum arenastrum |
KNOTWEED |
| Polygonum convolvulus |
BLACK BIRDWEED |
| Polygonum cristatum |
COPSE BINDWEED |
| Polygonum exsertum |
LONG-FRUITED KNOTWEED |
| Polygonum hydropiper |
COMMON SMARTWEED |
| Polygonum hydropiperoides |
MILD WATER PEPPER |
| Polygonum neglectum |
|
| 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 |
| Polystichum acrostichoides |
CHRISTMAS FERN |
| Polytaenia nuttallii |
PRAIRIE PARSLEY |
| Pontederia cordata |
PICKERELWEED |
| Populus alba |
WHITE POPLAR |
| Populus deltoides |
EASTERN COTTONWOOD |
| Populus grandidentata |
BIG-TOOTH ASPEN |
| Populus tremuloides |
QUAKING ASPEN |
| Portulaca oleracea |
PURSLANE |
| Potamogeton crispus |
BEGINNER'S PONDWEED |
| Potamogeton foliosus |
LEAFY PONDWEED |
| Potamogeton nodosus |
AMERICAN PONDWEED |
| Potamogeton pectinatus |
COMB PONDWEED |
| Potentilla argentea |
SILVERY 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 |
| Ptelea trifoliata |
WAFER ASH |
| Pycnanthemum pilosum |
HAIRY MOUNTAIN MINT |
| Pycnanthemum tenuifolium |
SLENDER MOUNTAIN MINT |
| Pycnanthemum virginianum |
COMMON MOUNTAIN MINT |
| Pyrus communis |
PEAR |
| Quercus alba |
WHITE OAK |
| Quercus bicolor |
SWAMP WHITE OAK |
| Quercus macrocarpa |
BURR OAK |
| Quercus prinoides acuminata |
CHINKAPIN OAK |
| Quercus rubra |
NORTHERN RED OAK |
| Quercus velutina |
BLACK OAK |
| Ranunculus abortivus |
LITTLE-LEAF BUTTERCUP |
| Ranunculus fascicularis |
EARLY BUTTERCUP |
| Ranunculus flabellaris |
YELLOW WATER BUTTERCUP |
| Ranunculus trichophyllus |
WHITE WATER-CROWFOOT |
| Rhamnus cathartica |
COMMON BUCKTHORN |
| Rhus aromatica |
AROMATIC SUMAC |
| Rhus glabra |
SMOOTH SUMAC |
| Ribes americanum |
WILD BLACK CURRENT |
| 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 |
| Rotala ramosior |
TOOTH-CUP |
| Rubus allegheniensis |
COMMON BLACKBERRY |
| Rubus idaeus |
CULTIVATED RASPBERRY |
| Rubus occidentalis |
BLACK RASPBERRY |
| Rudbeckia hirta |
BLACK-EYED SUSAN |
| Rudbeckia laciniata |
CUTLEAF CONEFLOWER |
| Rudbeckia subtomentosa |
FRAGRANT CONEFLOWER |
| Rudbeckia triloba |
BROWN-EYED SUSAN |
| Rumex acetosella |
COMMON SORREL |
| Rumex crispus |
CURLY DOCK |
| Rumex verticillatus |
SWAMP DOCK |
| Sagittaria latifolia |
ARROWHEAD |
| Salix amygdaloides |
PEACH-LEAVED WILLOW |
| Salix exigua |
SANDBAR WILLOW |
| Salix humilis |
PRAIRIE WILLOW |
| Salix nigra |
BLACK WILLOW |
| Salix petiolaris |
MEADOW WILLOW |
| Salvia reflexa |
ROCKY MOUNTAIN SAGE |
| 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 acutus |
GREAT BULRUSH |
| Scirpus atrovirens |
DARK GREEN RUSH |
| Scirpus cyperinus |
WOOL GRASS |
| Scirpus fluviatilis |
RIVER BULRUSH |
| Scirpus pendulus |
RED BULRUSH |
| Scirpus tabernaemontanii |
GREAT BULRUSH |
| Scrophularia lanceolata |
EARLY FIGWORT |
| Scrophularia marilandica |
LATE FIGWORT |
| Scutellaria galericulata |
MARSH SKULLCAP |
| Scutellaria lateriflora |
MAD-DOG SKULLCAP |
| Scutellaria ovata |
HEART-LEAVED SKULLCAP |
| Scutellaria parvula |
SMALL SKULLCAP |
| Secale cereale |
RYE |
| Senecio pauperculus |
BALSAM GROUNDSEL |
| Senecio plattensis |
PRAIRIE GROUNDSEL |
| Setaria faberi |
GIANT FOXTAIL |
| Setaria glauca |
PIGEON GRASS |
| Setaria verticillata |
BRISTLY FOXTAIL |
| Setaria viridis |
COMMON FOXTAIL |
| Sicyos angulatus |
BUR CUCUMBER |
| Sida spinosa |
PRICKLY SIDA |
| Sidopsis hispida |
GLOBE MALLOW |
| Silene cserei |
GLAUCOUS CAMPION |
| Silene nivea |
SNOW CAMPION |
| Silphium laciniatum |
COMPASS-PLANT |
| Silphium perfoliatum |
CUP PLANT |
| Sisymbrium altissimum |
TUMBLE MUSTARD |
| Sisymbrium officinale |
HEDGE MUSTARD |
| Sisyrinchium albidum |
BLUE-EYED GRASS |
| Sisyrinchium angustifolium |
COMMON BLUE-EYED GRASS |
| Sisyrinchium campestre |
PRAIRIE BLUE-EYED GRASS |
| Sium suave |
WATER PARSNIP |
| 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 gigantea |
LATE GOLDENROD |
| Solidago juncea |
EARLY GOLDENROD |
| Solidago missouriensis |
MISSOURI GOLDENROD |
| Solidago nemoralis |
DYERSWEED GOLDENROD |
| Solidago ptarmicoides |
STIFF ASTER |
| Solidago rigida |
RIGID GOLDENROD |
| Solidago speciosa |
SHOWY GOLDENROD |
| Solidago ulmifolia |
ELM-LEAVED GOLDENROD |
| Sorghastrum nutans |
INDIAN GRASS |
| Spartina pectinata |
FRESHWATER CORD GRASS |
| Spermacoce glabra |
SMOOTH BUTTONWEED |
| Spermolepis inermis |
|
| Sphenopholis obtusata major |
WEDGE GRASS |
| Spiraea alba |
MEADOW-SWEET |
| Spiranthes cernua |
NODDING LADIES-TRESSES |
| Spiranthes ovalis |
LADIES' TRESSES |
| Spirodela polyrhiza |
BIG DUCKWEED |
| Sporobolus asper |
DROP SEED |
| Sporobolus cryptandrus |
SAND DROPSEED |
| Sporobolus vaginiflorus |
NORTHERN RUSH GRASS |
| Stachys palustris homotricha |
WOUNDWORT |
| Stachys tenuifolia |
SLENDERLEAF BETONY |
| 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 |
| Symphoricarpos orbiculatus |
BUCKBRUSH |
| Taraxacum officinale |
COMMON DANDELION |
| Tephrosia virginiana |
GOAT'S RUE |
| Teucrium canadense boreale |
GRAY GERMANDER |
| Teucrium canadense virginicum |
AMERICAN GERMANDER |
| Thalictrum dasycarpum hypoglaucum |
MEADOW RUE |
| Thelypteris palustris pubescens |
MARSH FERN |
| 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 campestre |
LOW HOP CLOVER |
| 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 |
| Triphora trianthophora |
NODDING POGONIA |
| Typha latifolia |
CATTAIL |
| Ulmus americana |
AMERICAN ELM |
| Ulmus rubra |
SLIPPERY ELM |
| Urtica dioica |
STINGING NETTLE |
| Utricularia vulgaris |
COMMOM BLADDERWORT |
| Uvularia grandiflora |
BIG MERRY BELLS |
| Vallisneria americana |
EEL GRASS |
| Verbascum thapsus |
WOOLLY MULLEIN |
| Verbena bracteata |
CREEEPING VERVAIN |
| Verbena hastata |
BLUE VERVAIN |
| Verbena simplex |
NARROW-LEAVED 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 |
| Vicia villosa |
WINTER VETCH |
| Viola missouriensis |
MISSOURI VIOLET |
| Viola pedata |
BIRDFOOT VIOLET |
| Viola pedatifida |
PRAIRIE VIOLET |
| Viola pubescens eriocarpa |
SMOOTH YELLOW VIOLET |
| Viola sagittata |
ARROW-LEAVED 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 |
| Xanthium strumarium glabratum |
COCKLE BUR |
| Zannichellia palustris |
COMMON POOLMAT |
| Zanthoxylum americanum |
PRICKLY ASH |
| Zizia aurea |
GOLDEN ALEXANDERS |
| Zosterella dubia |
WATER STAR-GRASS |