Chiwaukee Prairie Plant List by Common Name....
This plant list was originally compiled by Hugh Iltis and Jim Zimmerman and later published by Eugene Gasiorkiewicz in 1986.
A B C D E F G H I J K L M N O P Q R S T U V Y
| Common Name | Scientific Name | Family | Status |
|---|---|---|---|
| Alfalfa | Medicago sativa | Fabaceae | |
| Alsike clover | Trifolium hybridum | Fabacae | |
| American germander | Teucrium canadense | Lamiaceae | |
| American hazelnut | Corylus americana | Betulaceae | |
| American vetch | Vicia americana | Fabacae | |
| Annual bedstraw | Galium aparine | Rubiaceae | |
| Arrow-leaved violet | Viola sagittata | Violaceae | |
| Asparagus | Asparagus officinalis | Liliaceae | |
| Balsam ragwort | Senecia pauperculus | Asteraceae | |
| Barnyard grass | Echinochloa crusgalli | Poaceae | |
| Bastard toadflax | Comandra richardsiana | Santalaceae | |
| Beach pea | Lathyrus japonicus glaber | Fabaceae | |
| Beardtongue | Penstemon calycosus | Scrophulariaceae | |
| Beardtongue=P. bradburii | Penstemon grandiflorus | Scrophulariaceae | |
| Bedstraw | Galium obstusum | Rubiaceae | |
| Big bluestem | Andropogon gerardi | Poaceae | |
| Birdfoot violet | Viola pedata lineariloba | Violaceae | |
| Black bindweed | Polygonum convolvus | Polygonaceae | |
| Black medick | Medicago lupulina | Fabaceae | |
| Black oak | Quercus velutina | Fagaceae | |
| Black snakeroot | Sanicula marilandica | Apiaceae | |
| Black-eyed Susan | Rudbeckia hirta | Asteraceae | |
| Bladderwort | Utricularia cornuta | Lentibulariaceae | |
| Blue flag | Iris virginica shrevei | Iridaceae | |
| Blue joint grass | Calamagrostis canadensis | Poaceae | |
| Blue marsh violet | Viola cucullata | Violaceae | |
| Blue vervain | Verbena hastata | Verbenaceae | |
| Bog goldenrod | Solidago ugliginosa | Asteraceae | |
| Bog lobelia | Lobelia kalmii | Lobeliaceae | |
| Bottle brush sedge | Carex hystricina | Cyperaceae | |
| Bottle gentian | Gentiana andrewsii | Gentianaceae | |
| Bouncing bet | Saponaria officinalis | Caryophyllaceae | |
| Box elder | Acer negundo | Aceraceae | |
| Bracken fern | Pteridium aquilinum | Polypodiaceae | |
| Bulbous cress | Cardamine bulbosa | Brassicaceae | |
| Bur oak | Quercus macrocarpa | Fagaceae | |
| Burdock | Arctium minus | Compositeae | |
| Bushy pinweed | Lechea stricta | Cistaceae | |
| Butter and eggs | Linaria vulgaris | Scrophulariaceae | |
| Butterfly weed | Asclepias tuberosa | Asclepiadaceae | |
| Buttonbush | Cephalanthus occidentalis | Rubiaceae | |
| Canada bluegrass | Poa compressa | Poaceae | |
| Canada hawkweed | Hieracium canadense fasciculatum | Asteraceae | |
| Canada thistle | Cirsium arvense | Asteraceae | non-native |
| Canada wild rye grass | Elymus canadensis | Poaceae | |
| Canadian milk vetch | Astragalus canadensis | Fabaceae | |
| Canadian rush | Juncus canadansis | Juncaceae | |
| Canadian St. John's wort | Hypericum canadense | Hypericaceae | |
| Cardinal flower | Lobelia cardinalis | Lobeliaceae | |
| Carrion flower | Smilax herbacea | Liliaceae | |
| Cats foot | Antennaria neglecta | Asteraceae | |
| Chairmaker's bulrush | Scirpus americanus | Cyperaceae | |
| Charlock | Brassica kaber pinnatifida | Brassicaceae | |
| Chestnut sedge | Fimbristylis drummondii | Cyperaceae | endangered |
| Chicory | Cichorium intybus | Asteraceae | |
| Chrysanthemum | Chrysanthemum leucanthemum pinnatifidum | Asteraceae | |
| Cinnamon willow herb | Epilobium coloratum | Onagraceae | |
| Cinquefoil | Potentilla heterophylla | Rosaceae | |
| Clammy ground cherry | Physalis heterophylla | Solanaceae | |
| Cleavers | Galium aparine | Rubiaceae | |
| Closed gentian | Gentiana andrewsii | Gentianaceae | |
| Clustered beak rush | Rhyncospora capitellata | Cyperaceae | |
| Cocklebur | Xanthium canadense | Asteraceae | |
| Common arrowhead | Sagittaria latifolia | Alismataceae | |
| Common blue-eyed grass | Sisyrinchium albidum | Iridaceae | |
| Common bog arrow grass | Triglochin maritima | Juncaginaceae | |
| Common Boneset | Eupatorium perfoliatum | Asteraceae | |
| Common bur reed | Sparganium eurycarpum | Sparganiaceae | |
| Common cattail | Typha latifolia | Typhaceae | |
| Common cinquefoil | Potentilla simplex | Rosaceae | |
| Common evening primrose | Oenothera biennis | Onagraceae | |
| Common horse tail | Eqisetum arvense | Equisetaceae | |
| Common ironweed | Veronia fasciculata | Asteraceae | |
| Common milkweed | Asclepias syriaca | Asclepiadaceae | |
| Common mountain mint | Pycnanthemum virginianum | Lamiaceae | |
| Common mullein | Verbascum thaspus | Scrophulariaceae | non-native |
| Common plantain | Plantago major | Plantaginaceae | |
| Common ragweed | Ambrosia artemisifolia | Asteraceae | |
| Common spiderwort | Tradescantia ohiensis | Commelinaceae | |
| Common water horehound | Lycopus americanus | Lamiaceae | |
| Common water weed | Elodea canadensis | Hydrocharitaceae | |
| Common wood sorrel | Oxalis stricta | Oxalidaceae | |
| Compass plant | Silphium laciniatum | Asteraceae | |
| Coneflower | Rudbeckia hirta | Asteraceae | |
| Cottonwood | Populus deltoides | Salicaceae | |
| Cow bane | Oxypolis regidior | Apiaceae | |
| Cow parsnip | Heracleum lanatum | Apiaceae | |
| Cow parsnip | Heracleum maximum | Apiaceae | |
| Crawe Sedge | Carex crawei | Cyperaceae | |
| Creeping vervain | Verbena bracteata | Verbenaceae | |
| Crunchweed | Brassica kaber pinnatifida | Brassicaceae | |
| Cud weed | Gnaphalium obtusifolium | Asteraceae | |
| Culver's root | Veronicastrum virginicum | Scrophulariaceae | |
| Cursed crowfoot | Ranunculus scleratus | Ranunculaceae | |
| Cylindrical blazing star | Liatris cylindracea | Asteraceae | |
| Cypress spurge | Euphorbia cyparissias | Euphorbiaceae | |
| Daisy fleabane | Erigeron strigosis | Asteraceae | |
| Dame's violet | Hesperius matronalis | Brassicaceae | |
| Dandelion |
Taraxacum officinale | Asteraceae | non-native |
| Dark green rush | Scirpus atrovirens | Cyperaceae | |
| Dinkweed | Polygonum pensylvanicum | Polygonaceae | |
| Ditch stonecrop | Penthorum sedoides | Saxifragaceae | |
| Dodder | Cuscuta glomerata | Convolvulaceae | |
| Dog mustard rocket weed | Erucastrum gallicum | Brassicaceae | |
| Dotted monarda | Monarda punctata villicaulis | Lamiaceae | |
| Downy brome | Bromus tectorum | Poaceae | |
| Downy gentian | Gentiana puberula | Gentianaceae | |
| Dragonhead | Physostegia virginiana | Lamiaceae | |
| Dwarf dandelion | Krigia biflora | Asteraceae | |
| Ear leaved brome | Bromus latiglumus | Poaceae | |
| Early buttercup | Ranunculus fascicularis | Ranunculaceae | |
| Early horse gentian | Triostem aurantiacum | Caprifoliaceae | |
| Early panic grass | Panicum praecocius | Poaceae | |
| Elderberry | Sambucus canadensis | Caprifoliaceae | |
| Elodea | Elodea canadensis | Hydrocharitaceae | |
| Everlasting | Gnaphalium obtusifolium | Asteraceae | |
| False asphodel | Tofieldia glutinosa | Liliaceae | threatened |
| False boneset | Kuhnia eupatorioides | Asteraceae | |
| False dandelion | Krigia biflora | Asteraceae | |
| False indigo | Baptisia leucophaea | Fabaceae | |
| False sunflower | Heliopsis helianthoides | Asteraceae | |
| False toadflax | Comandra umbellata | Santalaceae | |
| Field milkwort | Polygala sanguinea | Polygalaceae | |
| Field sorrel | Rumex acetosella | Polygonaceae | |
| Flat stemmed spike rush | Eleocharis compressa | Cyperaceae | |
| Flat top aster | Aster umbellatus | Asteraceae | |
| Flowering spurge | Euphorbia corrolata | Euphorbiaceae | |
| Four o'clock | Mirabilis nyctaginea | Nyctaginaceae | |
| Fowl meadow grass | Glyceria striata | Poaceae | |
| Fox sedge | Carex vulpinoidea | Cyperaceae | |
| Freshwater cordgrass | Spartina pectinata | Poaceae | |
| Fringed gentian | Gentianopsis crinita | Gentianaceae | |
| Fringed gentian=Gentianopsis crinita | Gentiana crinita | Gentianaceae | |
| Fringed gentian=Gentianopsis procera | Gentiana procera | Gentianaceae | |
| Fringed puccoon | Lithspermum incisum | Boraginaceae | |
| Frostweed | Helianthemum canadense | Cistaceae | |
| Gerardia | Gerardia aspera | Scrophulariaceae | |
| Gerardia | Gerardia purpurea | Scrophulariaceae | |
| Giant ragweed | Ambrosia trifida | Asteraceae | |
| Glaveous white lettuce | Prenanthes racemosa | Asteraceae | |
| Goat's beard | Tragopogon major | Asteraceae | |
| Golden Alexander | Zizia aurea | Apiaceae | |
| Goldenrod | Solidago altissima | Asteraceae | |
| Goldenrod | Solidago nemoralis | Asteraceae | |
| Grass of parnassus | Parnassia glauca | Saxifragaceae | |
| Grass pink | Calopogon pulchellus | Orchidaceae | |
| Grass-leaved goldenrod | Solidago graminifolia | Asteraceae | |
| Great blue lobelia | Lobelia siphilitica | Lobeliaceae | |
| Great Solomon's seal | Polygonatum canaliculatum | Lilaceae | |
| Great water dock | Rumex orbiculatus | Polygonaceae | |
| Green tway-blade | Liparis loeselii | Orchidaceae | |
| Green's rush | Juncus greenei | Juncaceae | |
| Ground nut | Apios americana | Fabaceae | |
| Groundsel | Senecia pauperculus | Asteraceae | |
| Hair grass | Agrostis scabra | Poaceae | |
| Hairy beak rush | Rhyncospora capillacea | Cyperaceae | |
| Hairy beard tongue | Penstemon hirsutus | Scrophulariaceae | |
| Hairy puccoon | Lithspermum croceum | Boraginaceae | |
| Hairy vetch | Vicia villosa | Fabaceae | |
| Hairy willow-herb | Epilobium hirsutum | Onagraceae | non-native |
| Hardstem bulrush | Scirpus validus creber | Cyperaceae | |
| Hawthorn | Crataegus sp. | Rosaceae | |
| Mead's sedge | Carex meadii | Cyperaceae | |
| Heal all | Prunella vulgaris lanceolata | Lamiaceae | |
| Hedge bindweed | Convolvulus sepium | Convolvulaceae | |
| Hoary puccoon | Lithospermum canescens | Boraginaceae | |
| Hog fennel | Oxypolis regidior | Apiaceae | |
| Hog peanut | Amphicarpa bracteata | Fabaceae | |
| Hooded violet | Viola cucullata | Violaceae | |
| Horsemint | Monarda punctata villicaulis | Lamiaceae | |
| Indian grass | Sorghastrum nutans | Poaceae | |
| Indian hemp | Apocynum cannabinum | Apocynaceae | |
| Indian paint brush | Castilleia coccinea | Scrophulariaceae | |
| Indian plantain | Cacalia tuberosa | Asteraceae | threatened |
| Joint rush | Juncus nodosus | Juncaceae | |
| Junegrass | Koeleria cristata | Poaceae | |
| Kalm's St. John's wort | Hypericum kalmianum | Hypericaceae | |
| Kentucky bluegrass | Poa pratensis | Poaceae | |
| Ladies' tobacco | Antennaria neglecta | Asteraceae | |
| Lake shore rush | Juncus balticus littoralis | Juncaceae | |
| Lamb's quarters | Chenopodium album | Chenopodiaceae | |
| Lance-leaved ground cherry | Physalis virginiana | Solanaceae | |
| Large flowered beard tongue | Penstemon bradburii | Scrophulariaceae | |
| Large pussy willow | Salix discolor | Salicaceae | |
| Large-flowered trillium | Trillium grandiflorum | Liliaceae | |
| Late goldenrod | Solidago gigantea leiophylla | Asteraceae | |
| Leadplant | Amorpha canescens | Fabaceae | |
| Leafy satin grass | Muhlenbergia mexicana | Poaceae | |
| Little blue stem | Andropogon scoparius | Poaceae | |
| Loesel's tway blade | Liparis loeselii | Orchidaceae | |
| Lousewort | Pedicularis canadensis | Scrophulariaceae | |
| Lousewort | Pedicularis lanceolata | Scrophulariaceae | |
| Low calamint | Satureja arkansana | Lamiaceae | |
| Low nut marsh | Scleria verticillata | Cyperaceae | |
| Lucerne | Medicago sativa | Fabaceae | |
| Mad-dog skullcap | Scutellaria lateriflora | Lamiaceae | |
| Many-flowered aster | Aster ericoides | Asteraceae | |
| Marsh bellflower | Campanula aparinoides | Campanulaceae | |
| Marsh blazing star | Liatris spicata | Asteraceae | |
| Marsh fern | Thelypteris palustris | Polypodiaceae | |
| Marsh fern | Dryopteris thelypteris pubescens | Polypodiaceae | |
| Marsh fern | Dryopteris thelypteris | Polypodiaceae | |
| Marsh fleabane | Erigeron philadelphicus | Asteraceae | |
| Marsh marigold | Caltha palustris | Ranunculaceae | |
| Marsh phlox | Phlox glaberrima interior | Polemoniaceae | endangered |
| Marsh skullcap | Scutellaria epilobifolia | Lamiaceae | |
| Marsh vetchling | Lathyrus palustris | Fabaceae | |
| Mat panic grass | Panicum meridionale | Poaceae | |
| May apple | Podophyllum peltatum | Berberidaceae | |
| Meadow anemone | Anemone canadensis | Ranunculaceae | |
| Meadow fescue | Festuca elatior | Poaceae | |
| Meadow sweet | Spiraea alba | Rosaceae | |
| Milkwort | Polygala senega | Polygalaceae | |
| Missouri goldenrod | Solidago missouriensis | Asteraceae | |
| Missouri grourel | Curcurbita foetidissima | Curcurbitaceae | |
| Monkey flower | Mimulus ringens | Scrophulariaceae | |
| Motherwort | Leonurus cardiaca | Lamiaceae | |
| Narrow leaved cattail | Typha augustifolia | Typhaceae | |
| Narrow leaved cotton grass | Eriophorum angustifolium | Cyperaceae | |
| Narrow-leaved loosestrife | Lysimachia quadriflora | Primulaceae | |
| Needle spoke rush | Eleocharis acicularis | Cyperaceae | |
| New England aster | Aster novae-angliae | Asteraceae | |
| New Jersey tea | Ceanothus americanus | Rhamnaceae | |
| Nightshade | Solanum dulcamara | Solanaceae | |
| Nodding bur-marigold | Bidens cernua | Asteraceae | |
| Nodding ladies' tresses | Spiranthes cernua ochroleuca | Orchidaceae | |
| Nodding wild onion | Allium cernuum | Liliaceae | |
| Northern bedstraw | Galium boreale | Rubiaceae | |
| Northern bugle weed | Lycopus uniflorus | Lamiaceae | |
| Northern dropseed | Sporobolus heterolepis | Poaceae | |
| Northern green orchid | Platanthera hyperborea | Ochidaceae | |
| Ohio goldenrod | Solidago ohioensis | Asteraceae | |
| One flowered cancer root/broomrape | Orobanche uniflora | Orobanchaceae | |
| Orange jewelweed | Impatiens capensis | Balsaminaceae | |
| Painted cup | Castilleia coccinea | Scrophulariaceae | |
| Pale beard tongue | Penstemon pallidus | Scrophulariaceae | |
| Pale false foxglove | Agalinis (Gerardia) skinneriana | Scrophulariaceae | endangered |
| Pale leaved sunflower | Helianthus strumosus | Asteraceae | |
| Pale vetchling | Lathyrus ochroleucus | Fabaceae | |
| Pale-spike lobelia | Lobelia spicata | Lobeliaceae | |
| Panic grass | Panicum lanuginosum linderheimeri | Poaceae | |
| Pasture rose | Rosa carolina | Rosaceae | |
| Pennsylvania knotweed | Polygonum pensylvanicum | Polygonaceae | |
| Pennsylvania sedge | Carex pensylvanica | Cyperaceae | |
| Pennsylvania sedge | Carex richardsonii | Cyperaceae | |
| Pennsylvania sedge | Carex sterilis | Cyperaceae | |
| Pennsylvania sedge | Carex tetanica | Cyperaceae | |
| Pennsylvania sedge | Carex tribuloides | Cyperaceae | |
| Pennsylvania sedge | Carex stipata | Cyperaceae | |
| Pennsylvania sedge | Carex stricta | Cyperaceae | |
| Pennsylvania sedge | Carex sartwellii | Cyperaceae | |
| Pineapple weed | Matricaria matricarioides | Asteraceae | |
| Pink milkwort | Polygala incarnata | Polygalaceae | endangered |
| Poison ivy | Rhus radicans | Acacardiaceae | |
| Porcupine grass | Stipa spartea | Poaceae | |
| Prairie alumroot | Heuchera richardsonii | Saxifragaceae | |
| Prairie blazing star | Liatris pycnostachya | Asteraceae | |
| Prairie blue-eyed grass | Sisyrinchium campestre | Iridaceae | |
| Prairie brome grass | Bromus kalmii | Poaceae | |
| Prairie cinquefoil | Potentilla arguta | Rosaceae | |
| Prairie coneflower | Ratibida pinnata | Asteraceae | |
| Prairie coreopsis | Coreopsis palmata | Asteraceae | |
| Prairie dock | Silphium terebinthinaceum | Asteraceae | |
| Prairie dropseed | Sporobolus heterolepsis | Poaceae | |
| Prairie false indigo | Baptisia leucantha | Fabaceae | |
| Prairie gentian=Gentiana puberlenta | Gentiana puberula | Gentianaceae | |
| Prairie lily | Lilium philadelphicum andinum | Liliaceae | |
| Prairie panic grass | Panicum leibergii | Poaceae | |
| Prairie phlox | Phlox pilosa | Polemoniaceae | |
| Prairie smoke | Geum triflorum | Rosaceae | |
| Prairie trillium | Trillium recurvatum | Liliaceae | |
| Prairie violet | Viola pedatifida | Violaceae | |
| Prairie willow | Salix humilis | Salicaceae | |
| Purple false foxglove | Gerardia purpurea | Scrophulariaceae | |
| Purple loosestrife | Lythrum salicaria | Lythraceae | non-native |
| Purple meadow rue | Thalictrum dasycarpus | Ranunculaceae | |
| Purple milkweed | Asclepias purpurascens | Asclepiadaceae | endangered |
| Purple milkwort | Polygala polygama | Polygalaceae | |
| Purple or waxy meadow rue | Thalictrum revoltum | Ranunculaceae | |
| Purple prairie clover | Petalostemum purpureum | Fabaceae | |
| Pussytoes | Antennaria neglecta | Asteraceae | |
| Quack grass | Agropyron repens | Poaceae | |
| Ragged fringed orchid | Platanthera lacera | Orchidaceae | |
| Rattlesnake master | Eryngium yuccifolium | Apiaceae | |
| Rattlesnake root | Prananthes recemosa | Asteraceae | |
| Red bulrush | Scirpus lineatus | Cyperaceae | |
| Red clover | Trifolium pratense | Fabaceae | |
| Red osier dogwood | Cornus stolonifera | Cornaceae | |
| Red raspberry | Rubus idaeus strigosus | Rosaceae | |
| Reed canary grass | Phalaris arundinacaea | Poaceae | |
| Riddell's goldenrod | Solidago riddellii | Asteraceae | |
| Rock cress | Arabis lyrata | Brassicaceae | |
| Rockrose | Helianthemum canadense | Cistaceae | |
| Rosinweed | Silphium integrifolium | Asteraceae | |
| Rough blazing star | Liatris aspera | Asteraceae | |
| Rough cinquefoil | Potentilla norvegica | Roseceae | |
| Rough false foxglove | Gerardia aspera | Scrophulariaceae | |
| Round-headed bush clover | Lespedeza capitata | Fabaceae | |
| Royal fern | Osmunda regalis | Osmundaceae | |
| Russian thistle | Salsola kali | Chenopodiaceae | |
| Sand coreopsis | Coreopsis lanceolata villosa | Asteraceae | |
| Sand dropseed | Sporobolus cryptandrus | Poaceae | |
| Sand milkweed | Asclepias amplexicaulis | Asclepiadaceae | |
| Sand primrose | Oenthera rhombipetalla | Onagraceae | |
| Sand reed | Calamovilfa longifolia magna | Poaceae | threatened |
| Sand sedge | Carex prairea | Cyperaceae | |
| Sand sedge | Carex normalis | Cyperaceae | |
| Sand sedge | Carex muhlenbergii | Cyperaceae | |
| Sandbar willow | Salix interior | Salicaceae | |
| Sandcress | Arabis lyrata | Brassicaceae | |
| Sanicle | Sanicula marilandica | Apiaceae | |
| Savory | Satureja arkansana | Lamiaceae | |
| Sawtooth sunflower | Helianthus grosseserratus | Asteraceae | |
| Schweinitz's Sedge | Carex schweintzii | Cyperaceae | endangered |
| Scribner's panic grass | Panicum oligosanthes scribnerianum | Poaceae | |
| Sedge | Carex bebbii | Cyperaceae | |
| Sedge | Carex bichnelli | Cyperaceae | |
| Sedge | Carex filiculmis | Cyperaceae | |
| Sedge | Carex festucacea | Cyperaceae | |
| Sedge | Carex diandra | Cyperaceae | |
| Sedge | Carex abbii | Cyperaceae | |
| Sedge | Carex conoidea | Cyperaceae | |
| Sedge | Carex buxbaumii | Cyperaceae | |
| Sedge | Carex aquatilis altior | Cyperaceae | |
| Sedge | Carex granularis haleana | Cyperaceae | |
| Self heal | Prunella vulgaris lanceolata | Lamiaceae | |
| Seneca milkwort | Polygala senega | Polygalaceae | |
| Sensitive fern | Onoclea sensibilis | Polypodiaceae | |
| Sheathed rush grass | Sporobolus vaginifloris | Poaceae | |
| Sheep sorrel | Rumex acetosella | Polygonaceae | |
| Shooting star | Dodecatheon meadia | Primulaceae | |
| Short green milkweed | Asclepias viridiflora | Asclepiadaceae | |
| Showy Tick trefoil | Desmodium canadensis | Fabaceae | |
| Shrubby cinquefoil | Potentilla fruticosa | Rosaceae | |
| Silky dogwood | Cornus amonum | Cornaceae | |
| Silver maple | Acer saccharinum | Aceraceae | |
| Silverweed | Potentilla anserina | Rosaceae | |
| Silvery cinquefoil | Potentilla argentea | Rosaceae | |
| Sky blue aster | Aster azureus | Asteraceae | |
| Sleepy catchfly | Silene antirrhina | Caryophyllaceae | |
| Slender leaved pinweed | Lechea tenuifolia | Cistaceae | |
| Slender wedge grass | Sphenopholis intermedia | Poaceae | |
| Small fringed gentian | Gentianopsis procera | Gentianaceae | |
| Small pepper grass | Lepidium densiflorum | Brassicaceae | |
| Small skullcap | Scutellaria parvula leonardi | Lamiaceae | |
| Small yellow lady slipper | Cypripedium parviflorum | Orchidaceae | |
| Smooth blue aster | Aster laevis | Asteraceae | |
| Smooth scouring rush | Equisetum hymale | Equisetaceae | |
| Smooth sumac | Rhus glabra | Anacardiaceae | |
| Sneezeweed | Helenium autumnale | Asteraceae | |
| Solomon's seal | Polygonatum biflorum | Lilaceae | |
| Spike rush | Eleocharis calva | Cyperaceae | |
| Spike rush | Eleocharis elliptica | Cyperaceae | |
| Spike rush | Eleocharis erythropado | Cyperacaea | |
| Spiraea | Spiraea alba | Rosaceae | |
| Spotted Joe pye weed | Eupatorium maculatum | Asteraceae | |
| Spreading dogbane | Apocynum androsaemifolium | Apocynaceae | |
| Spring cress | Cardamine bulbosa | Brassicaceae | |
| Squirrel tail grass | Hordeum jubatem | Poaceae | |
| Star grass | Hypoxis hirsuta | Amaryllidaceae | |
| Star-flowered false Solomon's seal | Smilacina stellata | Liliaceae | |
| Starry campion | Silene stellata | Caryophyllaceae | |
| Starved panic grass | Panicum depauperatum | Poaceae | |
| Stiff aster | Aster ptarmicoides | Asteraceae | |
| Stiff goldenrod | Solidago rigida | Asteraceae | |
| Stiff sandwort | Arenaria stricta | Caryophyllaceae | |
| Stinging nettle | Urtica dioica | Urticaceae | |
| Swamp Betony | Pedicularis lanceolata | Scrophulariaceae | |
| Swamp horse tail | Equisetum fluviatile | Equisetaceae | |
| Swamp milkweed | Asclepias incarnata | Asclepiadaceae | |
| Swamp pink | Calopogon pulchellus | Orchidaceae | |
| Swamp saxifrage | Saxifraga pensylvanica | Saxifragaceae | |
| Swamp thistle | Cirsium muticum | Asteraceae | |
| Sweet grass | Hierochloe odorata | Poaceae | |
| Switchgrass | Panicum virgatum | Poaceae | |
| Tall cinquefoil | Potentilla arguta | Rosaceae | |
| Tall goldenrod | Solidago canadensis | Asteraceae | |
| Tall green milkweed | Asclepias hirtella | Asclepiadaceae | |
| Tall nut rush | Scleria triglomerata | Cyperaceae | |
| Tansy | Tanacetum vulgare | Poaceae | |
| Tartarian honey suckle | Lonicera tartarica | Caprifoliaceae | |
| Thimble weed | Anemone cylindrica | Ranunculaceae | |
| Thistle | Cirsium discolor | Asteraceae | |
| Thoroughwort | Eupatorium perfoliatum | Asteraceae | |
| Three-awn grass | Aristida intermedia | Poaceae | |
| Thumble mustard | Sisymbrium altissimum | Brassicaceae | |
| Timothy | Phleum pratense | Poaceae | |
| Toad rush | Juncus bufonius | Juncaceae | |
| Touch-me-not | Impatiens capensis | Balsaminaceae | |
| Tufted loosestrife | Lysimachia thyrisiflora | Primulaceae | |
| Turkey foot | Andropogon gerardi | Poaceae | |
| Turk's cap lily | Lilium michiganense | Liliaceae | |
| Turtlehead | Chelone glabra | Scrophulariaceae | |
| Twig rush | Cladium mariscoides | Cyperaceae | |
| Unicorn root | Aletris farinosa | Liliaceae | |
| Valerian | Valeriana ciliata (edulis) | Valerianaceae | |
| Vanilla grass | Hierochloe odorata | Poaceae | |
| Veiny pea | Lathyrus venosus intonsus | Fabaceae | |
| Velvet leaf | Abutilon theothrasti | Malvaceae | |
| Violet | Viola sp. | Violaceae | |
| Violet wood sorrel | Oxalis violacea | Oxalidaceae | |
| Virginia water leaf | Hydrophyllum virginica | Hydrophyllaceae | |
| Water dropwort | Oxypolis regidior | Apiaceae | |
| Water milfoil | Myriophyllym sp. | Haloragidaceae | |
| Water plantain | Alisma plantago aquatica | Alismaceae | |
| Water smartweed | Polygonum amphibium stipuleceum | Polygonaceae | |
| Water-hemlock | Cicuta maculata | Apiaceae | |
| Western sunflower | Helianthus occidentalis | Asteraceae | |
| White campion | Lychnis alba | Caryophyllaceae | |
| White clover | Trifolium repens | Fabaceae | |
| White fringed prairie | Platanthera leucophaea | Orchidaceae | endangered |
| White mulberry | Morus alba | Moraceae | |
| White oak | Quercus alba | Fagaceae | |
| White prairie clover | Petalostemum candidum | Fabaceae | |
| White snakeroot | Eupatorium rugosum | Aceraceae | |
| White sweet clover | Melitotus alba | Fabaceae | |
| White wild indigo | Baptisia leucantha | Fabaceae | |
| Whorled milkweed | Asclepias verticillata | Asclepiadaceae | |
| Whorled milkwort | Polygala verticillata isocycla | Polygalaceae | |
| Wild barley | Hordeum jubatum | Poaceae | |
| Wild bergamot | Monarda fistulosa | Lamiaceae | |
| Wild black cherry | Prunus serotina | Rosaceae | |
| Wild carrot | Daucus carota | Umbelliferae | non-native |
| Wild coffee | Triosteum aurantiacum | Caprifoliaceae | |
| Wild cucumber | Echinocystis lobata | Cucurbitaceae | |
| Wild flag | Iris virginica shrevei | Iridaceae | |
| Wild garlic | Allium canadense | Liliaceae | |
| Wild geranium | Geranium maculatum | Geraniaceae | |
| Wild goldenglow | Rudbeckia laciniata | Asteraceae | |
| Wild grape | Vitis riparia | Vitaceae | |
| Wild lettuce | Lactuca canadensis | Asteraceae | |
| Wild lupine | Lupinus perennis occidentalis | Fabaceae | |
| Wild madder | Galium obstusum | Rubiaceae | |
| Wild mint | Mentha arvensis villosa | Lamiaceae | |
| Wild pea | Lathyrus venosus intonsus | Fabaceae | |
| Wild pea | Lathyrus ochroleucus | Fabaceae | |
| Wild rose | Rosa carolina | Rosaceae | |
| Wild strawberry | Fragaria virginiana | Rosaceae | |
| Windflower | Anemone canadensis | Ranunculaceae | |
| Winged loosestrife | Lythrum alatum | Lythraceae | |
| Wiry panic grass | Panicum flexile | Poaceae | |
| Wood anemone | Anemone quinquifolia interior | Ranunculaceae | |
| Wood betony | Pedicularis canadensis | Scrophulariaceae | |
| Wood sage | Teucrium canadense | Lamiaceae | |
| Wood sandwort | Arenaria lateriflora | Caryophyllaceae | |
| Wooly sedge | Carex lanuginosa | Cyperaceae | |
| Wormwood | Artemesia caudata | Asteraceae | |
| Woundwort | Stachys palustris | Lamiaceae | |
| Yarrow | Achillea millefolium | Poaceae | |
| Yellow cress | Rorippa islandica fernaldiana | Brassicaceae | |
| Yellow jewel weed | Impatiens pallida | Balsaminaceae | |
| Yellow pimpernel | Taenidia integerrima | Apiaceae | |
| Yellow rocket | Barbarea vulgaris | Brassicaceae | |
| Yellow star grass | Hypoxis hirsuta | Amaryllidaceae | |
| Yellow sweet clover | Melilotus officinalis | Fabaceae | |
| Yellow water-crowfoot | Ranunculus flabellaris | Ranunculaceae |
Additions are currently being made to this list, November 2001.