Genus species CommonName Family

Abutilon theophrasti Velvetleaf Malvaceae

Acalypha ostryaefolia Hop-hornbeam copperleaf Euphorbiaceae

Acalypha rhomboidea Rhombic copperleaf Euphorbiaceae

Acalypha virginica Virginia copperleaf Euphorbiaceae

Acer negundo Boxelder Aceraceae

Achillea millefolium Western yarrow Asteraceae

Aegilops cylindrica Goat grass Poaceae

Aesculus glabra Ohio buckeye Hippocastanaceae

Agalinis aspera Rough agalinis Scrophulariaceae

Agalinis densiflora Fine-leaf hairy-foxglove Scrophulariaceae

Agastache nepetoides Catnip giant-hyssop Lamiaceae

Ageratina altissima White snakeroot Asteraceae

Agrimonia pubescens Downy agrimonia Rosaceae

Agrostis hyemalis Winter bent grass; tickle grass Poaceae

Agrostis stolonifera Redtop Poaceae

Alisma subcordatum Subcordate water-plantain Alismataceae

Alliaria petiolata Garlic-mustard Brassicaceae

Allium canadense Wild onion Liliaceae

Allium stellatum Pink onion Liliaceae

Alopecurus carolinianus Carolina foxtail Poaceae

Amaranthus blitoides Prostrate pigweed Amaranthaceae

Amaranthus palmeri Palmer's pigweed Amaranthaceae

Amaranthus retroflexus Rough pigweed Amaranthaceae

Amaranthus rudis Water-hemp Amaranthaceae

Ambrosia artemisiifolia Annual ragweed Asteraceae

Ambrosia psilostachya Western ragweed Asteraceae

Ambrosia trifida Giant ragweed Asteraceae

Ammannia coccinea Purple toothcup Lythraceae

Amorpha canescens Leadplant Fabaceae

Amorpha fruticosa Indigobush amorpha Fabaceae

Amphiachyris dracunculoides Annual broomweed Asteraceae

Amphicarpaea bracteata Hog-peanut Fabaceae

Andropogon gerardii Big bluestem Poaceae

Androsace occidentalis Western rock-jasmine Primulaceae

Anemone caroliniana Carolina anemone Ranunculaceae

Anemone virginiana Tall anemone Ranunculaceae

Antennaria neglecta Field pussytoes Asteraceae

Apocynum cannabinum Hemp dogbane Apocynaceae

Arabis hirsuta Hairy rockcress Brassicaceae

Arctium minus Burdock Asteraceae

Arenaria serpyllifolia Thyme-leaf sandwort Caryophyllaceae

Argemone polyanthemos White prickly-poppy Papaveraceae

Argyrochosma dealbata False cloak fern Pteridaceae

Arisaema dracontium Dragonroot Araceae

Aristida oligantha Prairie threeawn Poaceae

Aristida purpurea Purple threeawn Poaceae

Arnoglossum plantagineum Tuberous Indian-plantain Asteraceae

Artemisia ludoviciana Louisiana sagewort Asteraceae

Asclepias lanuginosa Woolly milkweed Asclepiadaceae

Asclepias speciosa Showy milkweed Asclepiadaceae

Asclepias stenophylla Narrow-leaf milkweed Asclepiadaceae

Asclepias sullivantii Smooth milkweed Asclepiadaceae

Asclepias syriaca Common milkweed Asclepiadaceae

Asclepias tuberosa Butterfly milkweed Asclepiadaceae

Asclepias verticillata Whorled milkweed Asclepiadaceae

Asclepias viridiflora Green milkweed Asclepiadaceae

Asclepias viridis Spider milkweed Asclepiadaceae

Asimina triloba Pawpaw Annonaceae

Asparagus officinalis Asparagus Liliaceae

Astragalus canadensis Canadian milk-vetch Fabaceae

Astragalus crassicarpus Ground-plum milk-vetch Fabaceae

Astragalus lotiflorus Lotus milk-vetch Fabaceae

Astragalus missouriensis Missouri milk-vetch Fabaceae

Astragalus plattensis Platte River milk-vetch Fabaceae

Bacopa rotundifolia Water-hyssop Scrophulariaceae

Baptisia australis Blue wild-indigo Fabaceae

Baptisia x bicolor Bicolor wild-indigo Fabaceae

Baptisia bracteata Plains wild-indigo Fabaceae

Barbarea vulgaris Wintercress Brassicaceae

Bassia scoparia Fireweed; kochia Chenopodiaceae

Bidens aristosa Coreopsis beggar-ticks Asteraceae

Bidens bipinnata Spanish needles Asteraceae

Bidens cernua Nodding beggar-ticks Asteraceae

Bidens frondosa Devil's beggar-ticks Asteraceae

Bolboschoenus fluviatilis River bulrush Cyperaceae

Bothrichloa bladhii Caucasian bluestem Poaceae

Bothrichloa ischaemum Turkestan bluestem Poaceae

Bothrichloa laguroides Silver bluestem Poaceae

Botrychium virginianum Rattlesnake fern Ophioglossaceae

Bouteloua curtipendula Side-oats grama Poaceae

Bouteloua gracilis Blue grama Poaceae

Bouteloua hirsuta Hairy grama Poaceae

Brickellia eupatorioides False-boneset Asteraceae

Bromus inermis Smooth brome Poaceae

Bromus japonicus Japanese brome Poaceae

Bromus pubescens Woodland brome Poaceae

Bromus tectorum Downy brome Poaceae

Buchloe dactyloides Buffalo grass Poaceae

Buglossoides arvensis Corn gromwell Boraginaceae

Callirhoe alcaeoides Pale poppy-mallow Malvaceae

Callirhoe involucrata Purple poppy-mallow Malvaceae

Calylophus serrulatus Serrate-leaf evening-primrose Onagraceae

Calystegia macounii Hedge bindweed Convolvulaceae

Camelina microcarpa Little-pod false-flax Brassicaceae

Campanulastrum americanum American bellflower Campanulaceae

Campsis radicans Trumpet-creeper Bignoniaceae

Cannabis sativa Hemp; marijuana Cannabaceae

Capsella bursa-pastoris Shepherd's-purse Brassicaceae

Cardamine concatenata Cut-leaf toothwort Brassicaceae

Cardaria draba Hoary cress Brassicaceae

Carduus nutans Musk-thistle Asteraceae

Carex albicans White-tinge sedge Cyperaceae

Carex austrina Southern sedge Cyperaceae

Carex blanda Woodland sedge Cyperaceae

Carex brachyglossa Yellow-fruit sedge Cyperaceae

Carex brevior Straw sedge Cyperaceae

Carex davisii Davis' sedge Cyperaceae

Carex emoryi Emory's sedge Cyperaceae

Carex frankii Frank's sedge Cyperaceae

Carex gravida Heavy sedge Cyperaceae

Carex grisea Narrow-leaf sedge Cyperaceae

Carex hyalinolepis Shoreline sedge Cyperaceae

Carex hystericina Bottle-brush sedge Cyperaceae

Carex inops Prairie sedge Cyperaceae

Carex meadii Mead's sedge Cyperaceae

Carex molesta Pest sedge Cyperaceae

Carex pellita Woolly sedge Cyperaceae

Carex vulpinoidea Fox sedge Cyperaceae

Carya cordiformis Bitter-nut hickory Juglandaceae

Ceanothus herbaceus Inland ceanothus; New Jersey tea Rhamnaceae

Celastrus scandens American bittersweet Celastraceae

Celtis occidentalis Hackberry Ulmaceae

Cenchrus longispinus Sandbur Poaceae

Cerastium brachypodum Mouse-ear chickweed Caryophyllaceae

Cercis canadensis Eastern redbud Fabaceae

Chaerophyllum procumbens Spreading chervil Apiaceae

Chaerophyllum tainturieri Erect chervil Apiaceae

Chamaecrista fasciculata Showy partridgepea Fabaceae

Chamaesyce glyptosperma Ridge-seed mat-spurge Euphorbiaceae

Chamaesyce maculata Spotted mat-spurge Euphorbiaceae

Chamaesyce missurica Missouri mat-spurge Euphorbiaceae

Chamaesyce nutans Eyebane Euphorbiaceae

Chamaesyce prostrata Prostrate mat-spurge Euphorbiaceae

Chamaesyce serpens Serpent mat-spurge Euphorbiaceae

Chamaesyce stictospora Slim-seed mat-spurge Euphorbiaceae

Chenopodium album Lamb's-quarters Chenopodiaceae

Chenopodium berlandieri Pit-seed goosefoot Chenopodiaceae

Chenopodium pallescens Pale goosefoot Chenopodiaceae

Chenopodium simplex Maple-leaf goosefoot Chenopodiaceae

Chenopodium standleyanum Standley's goosefoot Chenopodiaceae

Chloris verticillata Windmill grass Poaceae

Chorispora tenella Blue-mustard Brassicaceae

Cirsium altissimum Tall thistle Asteraceae

Cirsium undulatum Wavy-leaf thistle Asteraceae

Cirsium vulgare Bull thistle Asteraceae

Clematis pitcheri Pitcher's clematis Ranunculaceae

Comandra umbellata Bastard toad-flax Santalaceae

Commelina erecta Erect dayflower Commelinaceae

Conium maculatum Poison-hemlock Apiaceae

Convolvulus arvensis Field bindweed Convolvulaceae

Conyza canadensis Canada horseweed Asteraceae

Conyza ramosissima Spreading horseweed Asteraceae

Cornus amomum Pale dogwood Cornaceae

Cornus drummondii Rough-leaf dogwood Cornaceae

Coronilla varia Crown-vetch Fabaceae

Corydalis micrantha Slender fumewort Fumariaceae

Crategus mollis Summer haw; downy hawthorn Rosaceae

Crotalaria sagittalis Rattlebox Fabaceae

Croton capitatus Woolly croton Euphorbiaceae

Croton monanthogynus One-seed croton Euphorbiaceae

Cucurbita foetidissima Buffalo gourd Cucurbitaceae

Cuscuta glomerata Cluster dodder Cuscutaceae

Cuscuta indecora Showy dodder Cuscutaceae

Cynanchum laeve Climbing-milkweed Asclepiadaceae

Cynodon dactylon Bermuda grass Poaceae

Cynoglossum officinale Hound's-tongue Boraginaceae

Cyperus acuminatus Tape-leaf flat-sedge Cyperaceae

Cyperus bipartitus Brook flat-sedge Cyperaceae

Cyperus esculentus Yellow nut-sedge Cyperaceae

Cyperus lupulinus Plains flat-sedge Cyperaceae

Cyperus x mesochorus Intermediate flat-sedge Cyperaceae

Cyperus odoratus Rusty flat-sedge Cyperaceae

Cyperus squarrosus Awned flat-sedge Cyperaceae

Cyperus strigosus Straw flat-sedge Cyperaceae

Dactylis glomerata Orchard grass Poaceae

Dalea aurea Silk-top prairie-clover Fabaceae

Dalea candida White prairie-clover Fabaceae

Dalea leporina Fox-tail prairie-clover Fabaceae

Dalea multiflora Round-head prairie-clover Fabaceae

Dalea purpurea Purple prairie-clover Fabaceae

Datura stramonium Jimsonweed Solanaceae

Delphinium carolinianum Plains larkspur Ranunculaceae

Descurainia pinnata Pinnate tansy-mustard Brassicaceae

Descurainia sophia Flixweed tansy-mustard Brassicaceae

Desmanthus illinoensis Illinois bundle-flower Fabaceae

Desmodium canescens Hoary tick-clover Fabaceae

Desmodium glutinosum Large-flower tick-clover Fabaceae

Desmodium illinoense Illinois tick-clover Fabaceae

Desmodium paniculatum Panicled tick-clover Fabaceae

Desmodium sessilifolium Sessile tick-clover Fabaceae

Dianthus armeria Deptford pink Caryophyllaceae

Diarrhena obovata American beakgrain Poaceae

Dicentra cucullaria Dutchman's-breeches Fumariaceae

Dichanthelium acuminatum Woolly dichanthelium Poaceae

Dichanthelium oligosanthes Scribner's dichanthelium Poaceae

Digitaria cognata Fall witch grass Poaceae

Digitaria sanguinalis Hairy crab grass Poaceae

Draba cuneifolia Wedge-leaf draba Brassicaceae

Draba reptans White whitlow-wort Brassicaceae

Dyssodia papposa Prairie dogweed; fetid-marigold Asteraceae

Echinacea angustifolia Black-sampson echinacea Asteraceae

Echinochloa muricata Barnyard grass Poaceae

Echinodorus berteroi Burhead Alismataceae

Eclipta prostrata Yerba-de-tajo Asteraceae

Elaeagnus angustifolia Russian-olive Elaeagnaceae

Eleocharis compressa Flat-stem spike-rush Cyperaceae

Eleocharis erythropoda Red-foot spike-rush Cyperaceae

Eleocharis palustris Long-stem spike-rush Cyperaceae

Eleusine indica Goose grass Poaceae

Ellisia nyctelea Waterpod Hydrophyllaceae

Elymus canadensis Canadian wild-rye Poaceae

Elymus villosus Hairy wild-rye Poaceae

Elymus virginicus Virginia wild-rye Poaceae

Equisetum laevigatum Smooth scouring-rush Equisetaceae

Eragrostis capillaris Lace grass Poaceae

Eragrostis cilianensis Stink grass Poaceae

Eragrostis pectinacea Carolina love grass Poaceae

Eragrostis spectabilis Purple love grass Poaceae

Erechtites hieraciifolia American burnweed Asteraceae

Erigeron annuus Annual fleabane Asteraceae

Erigeron philadelphicus Philadelphia fleabane Asteraceae

Erigeron strigosus Daisy fleabane Asteraceae

Eriochloa contracta Prairie cup grass Poaceae

Erysimum repandum Bushy wallflower Brassicaceae

Erythronium albidum White fawn-lily Liliaceae

Escobaria missouriensis Nipple cactus Cactaceae

Euonymus atropurpurea Eastern wahoo Celastraceae

Eupatorium altissimum Tall joe-pye-weed Asteraceae

Euphorbia corollata Flowering spurge Euphorbiaceae

Euphorbia cyathophora Painted spurge Euphorbiaceae

Euphorbia davidii Western toothed spurge Euphorbiaceae

Euphorbia dentata Eastern toothed spurge Euphorbiaceae

Euphorbia hexagona Six-angle spurge Euphorbiaceae

Euphorbia marginata Snow-on-the-mountain Euphorbiaceae

Euphorbia spathulata Warty spurge Euphorbiaceae

Euthamia gymnospermoides Sticky euthamia Asteraceae

Evolvulus nuttallianus Nuttall's evolvulus Convolvulaceae

Festuca subverticillata Nodding fescue Poaceae

Fraxinus pennsylvanica Green ash Oleaceae

Fuirena simplex Umbrella-sedge Cyperaceae

Galium aparine Catch-weed bedstraw Rubiaceae

Galium circaezans Woods bedstraw Rubiaceae

Galium triflorum Sweet-scented bedstraw Rubiaceae

Gaura mollis Small-flower gaura; velvet gaura Onagracene Gentiana puberulenta Downy gentian Gentianaceae

Geranium carolinianum Carolina crane's-bill Geraniaceae

Geum canadense White avens Rosaceae

Glandularia bipinnatifida Dakota verbena Verbenaceae

Glandularia canadensis Rose verbena Verbenaceae

Gleditsia triacanthos Honey-locust Fabaceae

Glyceria striata Fowl manna grass Poaceae

Glycyrrhiza lepidota American licorice Fabaceae

Grindelia squarrosa Curly-cup gumweed Asteraceae

Gymnocladus dioicus Kentucky coffeetree Fabaceae

Hackelia virginiana Virginia stickseed Boraginaceae

Hedeoma hispidum Rough false-penny-royal Lamiaceae

Hedyotis nigricans Narrow-leaf bluets Rubiaceae

Helianthus annuus Common sunflower Asteraceae

Helianthus hirsutus Hairy sunflower Asteraceae

Helianthus maximilianii Maximilian's sunflower Asteraceae

Helianthus pauciflorus Stiff sunflower Asteraceae

Helianthus petiolaris Plains sunflower Asteraceae

Helianthus tuberosus Jerusalem artichoke Asteraceae

Heliopsis helianthoides Rough heliopsis Asteraceae

Hesperis matronalis Dame's rocket Brassicaceae

Hesperostipa spartea Porcupine grass Poaceae

Heterotheca canescens Golden-aster Asteraceae

Hibiscus trionum Flower-of-an-hour Malvaceae

Hieracium longipilum Long-beard hawkweed Asteraceae

Holosteum umbellatum Jagged chickweed Caryophyllaceae

Hordeum jubatum Fox-tail barley Poaceae

Hordeum pusillum Little barley Poaceae

Houstonia pusilla Small bluets Rubiaceae

Hybanthus verticillatus Nodding green-violet Violaceae

Hymenopappus scabiosaeus White-bract hymenopappus; old plainsman Asteraceae

Hypericum perforatum Common St. John's-wort Clusiaceae

Ipomoea hederacea Ivy-leaf morning-glory Convolvulaceae

Ipomoea lacunosa White morning-glory Convolvulaceae

Ipomoea pandurata Big-root morning-glory Convolvulaceae

Isanthus brachiatus Fluxweed Lamiaceae

Iva annua Annual sumpweed Asteraceae

Juglans nigra Black walnut Juglandaceae

Juncus dudleyi Dudley's rush Junacaceae

Juncus interior Inland rush Junacaceae

Juncus torreyi Torrey's rush Junacaceae

Juniperus virginiana Red-cedar Cupressaceae

Koeleria macrantha Prairie June grass Poaceae

Krigia cespitosa Dwarf-dandelion Asteraceae

Kummerowia stipulacea Korean lespedeza Fabaceae

Lactuca canadensis Canadian lettuce Asteraceae

Lactuca ludoviciana Louisiana lettuce Asteraceae

Lactuca saligna Willow-leaf lettuce Asteraceae

Lactuca serriola Prickly lettuce Asteraceae

Lamium amplexicaule Hen-bit Lamiaceae

Laportea canadensis Canadian wood-nettle Urticaceae

Leersia oryzoides Rice cut grass Poaceae

Leersia virginica White grass Poaceae

Lemna minor Lesser duckweed Lemnaceae

Lepidium densiflorum Common pepperweed Brassicaceae

Lepidium oblongum Branched pepperweed Brassicaceae

Lepidium virginicum Virginia pepperweed Brassicaceae

Leptochloa fusca Bearded sprangletop Poaceae

Leptochloa panicea Red sprangletop Poaceae

Lespedeza capitata Round-head lespedeza Fabaceae

Lespedeza cuneata Sericea lespedeza Fabaceae

Lespedeza stuevei Tall bush-clover Fabaceae

Lespedeza violacea Prairie lespedeza Fabaceae

Leucospora multifida Paleseed Scrophulariaceae

Liatris aspera Button gayfeather Asteraceae

Liatris mucronata Eastern dotted gayfeather Asteraceae

Liatris punctata Western dotted gayfeather Asteraceae

Linum sulcatum Grooved flax Linaceae

Lithospermum canescens Hoary gromwell Boraginaceae

Lithospermum incisum Narrow-leaf gromwell; fringed puccoon Boraginaceae

Lobelia cardinalis Red cardinal-flower Campanulaceae

Lobelia siphilitica Blue cardinal-flower Campanulaceae

Lolium arundinaceum Tall fescue Poaceae

Lolium perenne Rye grass Poaceae

Lolium pratense Meadow fescue Poaceae

Lomatium foeniculaceum Carrot-leaf lomatium Apiaceae

Lonicera maackii Amur honeysuckle Caprifoliaceae

Lycopus americanus American bugleweed Lamiaceae

Lysimachia ciliata Fringed loosestrife Primulaceae

Lythrum alatum Winged loosestrife Lythraceae

Maclura pomifera Hedge-apple; osage-orange Moraceae

Malva neglecta Common mallow Malvaceae

Malvastrum hispidum Rough false-mallow Malvaceae

Marrubium vulgare Common horehound Lamiaceae

Medicago lupulina Black medic Fabaceae

Medicago sativa Alfalfa Fabaceae

Melilotus officinalis Yellow sweet-clover, white sweet-clover Fabaceae

Menispermum canadense Moonseed Menispermaceae

Mentha arvensis Field mint Lamiaceae

Mentzelia oligosperma Stick-leaf Loasaceae

Microthlaspi perfoliatum Perfoliate pennycress Brassicaceae

Mimosa nuttallii Cat-claw sensitive-brier Fabaceae

Mimulus glabratus Yellow monkey-flower Scrophulariaceae

Mirabilis albida White four-o'clock Nyctaginaceae

Mirabilis linearis Narrow-leaf four-o'clock Nyctaginaceae

Mirabilis nyctaginea Wild four-o'clock Nyctaginaceae

Mollugo verticillata Carpetweed Molluginaceae

Monarda fistulosa Mint-leaf bee-balm; wild bergamot Lamiaceae

Monolepis nuttalliana Povertyweed Chenopodiaceae

Morus alba White mulberry Moraceae

Muhlenbergia bushii Nodding muhly Poaceae

Muhlenbergia cuspidata Plains muhly Poaceae

Muhlenbergia frondosa Wire-stem muhly Poaceae

Muhlenbergia mexicana Leafy muhly Poaceae

Muhlenbergia racemosa Green muhly; marsh muhly Poaceae

Muhlenbergia schreberi Nimblewill Poaceae

Myosotis verna Virginia forget-me-not Boraginaceae

Myosurus minimus Tiny mousetail Ranunculaceae

Najas guadalupensis Common naiad Najadaceae

Nepeta cataria Catnip Lamiaceae

Nothocalais cuspidata Wavy-leaf false-dandelion Asteraceae

Oenothera biennis Common evening-primose Onagraceae

Oenothera laciniata Cut-leaf evening-primrose Onagraceae

Oenothera macrocarpa Missouri evening-primose Onagraceae

Oenothera speciosa Showy evening-primrose Onagraceae

Oligoneuron rigidum Stiff goldenrod Asteraceae

Onosmodium molle Western marbleseed Boraginaceae

Ophioglossum engelmannii Adder's-tongue Ophioglossaceae

Opuntia macrorhiza Plains pricklypear Cactaceae

Ornithogalum umbellatum Star-of-Bethlehem Liliaceae

Orobanche uniflora One-flower broomrape Orobanchaceae

Osmorhiza longistylis Long-style sweet-cicely Apiaceae

Ostrya virginiana Hop-hornbeam Betulaceae

Oxalis dillenii Gray-green wood-sorrel Oxalidaceae

Oxalis stricta Yellow wood-sorrel Oxalidaceae

Oxalis violacea Violet wood-sorrel Oxalidaceae

Packera plattensis Prairie groundsel Asteraceae

Panicum capillare Common witch grass Poaceae

Panicum dichotomiflorum Fall panicum Poaceae

Panicum obtusum Vine-mesquite Poaceae

Panicum virgatum Switch grass Poaceae

Parietaria pensylvanica Pennsylvania pellitory Urticaceae

Parthenocissus quinquefolia Virginia creeper Vitaceae

Pascopyrum smithii Western wheat grass Poaceae

Paspalum pubiflorum Hairy-seed paspalum Poaceae

Paspalum setaceum Sand paspalum Poaceae

Pediomelum argophyllum Silver-leaf scurfpea Fabaceae

Pediomelum esculentum Breadroot scurfpea Fabaceae

Pellaea glabella Smooth cliff brake Pteridaceae

Penstemon cobaea Cobaea beardtongue Scrophulariaceae

Penstemon grandiflorus Shell-leaf beardtongue; large beardtongue Scrophulariaceae

Penstemon tubiflorus Tube beardtongue Scrophulariaceae

Penthorum sedoides Ditch stonecrop Crassulaceae

Phleum pratense Timothy Poaceae

Phlox divaricata Blue phlox Polemoniaceae

Phryma leptostachya Lopseed Verbenaceae

Phyla lanceolata Northern fogfruit Verbenaceae

Physalis hederifolia Heart-leaf ground-cherry Solanaceae

Physalis heterophylla Clammy ground-cherry Solanaceae

Physalis pubescens Downy ground-cherry Solanaceae

Physalis pumila Prairie ground-cherry Solanaceae

Physalis virginiana Virginia ground-cherry Solanaceae

Phytolacca americana Pokeweed Phytolaccaceae

Pilea pumila Clearweed Urticaceae

Plantago aristata Bottle-brush plantain Plantaginaceae

Plantago lanceolata Buck-horn plantain Plantaginaceae

Plantago patagonica Woolly plantain Plantaginaceae

Plantago rhodosperma Red-seed plantain Plantaginaceae

Plantago rugelii Black-seed plantain Plantaginaceae

Plantago virginica Pale-seed plantain Plantaginaceae

Platanus occidentalis Sycamore Platanaceae

Poa arida Plains blue grass Poaceae

Poa chapmaniana Chapman's blue grass Poaceae

Poa compressa Canadian blue grass Poaceae

Poa pratensis Kentucky blue grass Poaceae

Polanisia dodecandra Clammyweed Capparaceae

Polygala verticillata Whorled milkwort Polygalaceae

Polygonatum biflorum Solomon's-seal Polygalaceae

Polygonum amphibium Water smartweed Polygalaceae

Polygonum aviculare Prostrate knotweed Polygalaceae

Polygonum hydropiper Swamp water-pepper Polygalaceae

Polygonum hydropiperoides Mild water-pepper Polygalaceae

Polygonum lapathifolium Pale smartweed Polygalaceae

Polygonum pensylvanicum Pennsylvania smartweed Polygalaceae

Polygonum persicaria Lady's-thumb smartweed Polygalaceae

Polygonum punctatum Dotted smartweed Polygalaceae

Polygonum ramosissimum Bushy knotweed Polygalaceae

Polygonum scandens False buckwheat Polygalaceae

Polygonum tenue Slim knotweed Polygalaceae

Polygonum virginianum Virginia smartweed Polygalaceae

Populus deltoides Cottonwood Salicaceae

Portulaca oleracea Common purslane Portulacaceae

Potamogeton foliosus Leafy pondweed Potamogetonaceae

Potamogeton nodosus Long-leaf pondweed Potamogetonaceae

Potamogeton pusillus Baby pondweed Potamogetonaceae

Potentilla arguta Tall cinquefoil Rosaceae

Potentilla recta Sulphur cinquefoil Rosaceae

Prunella vulgaris Selfheal Lamiaceae

Prunus americana Wild plum Rosaceae

Prunus angustifolia Chickasaw plum Rosaceae

Prunus virginiana Choke cherry Rosaceae

Pseudognaphalium obtusifolium Fragrant cudweed Asteraceae

Psoralidium tenuiflorum Many-flower scurfpea Fabaceae

Quercus macrocarpa Bur oak Fagaceae

Quercus muehlenbergii Chinquapin oak Fagaceae

Ranunculus abortivus Little-leaf buttercup Ranunculaceae

Ratibida columnifera Upright prairie-coneflower Asteraceae

Rhus aromatica Aromatic sumac Anacardiaceae

Rhus glabra Smooth sumac Anacardiaceae

Ribes missouriense Missouri gooseberry Grossulariaceae

Robinia pseudoacacia Black locust Fabaceae

Rorippa nasturtium-aquaticum Watercress Brassicaceae

Rorippa palustris Bog yellowcress Brassicaceae

Rorippa sessiliflora Stalkless yellowcress Brassicaceae

Rorippa sinuata Spreading yellowcress Brassicaceae

Rosa arkansana Arkansas rose Rosaceae

Rosa multiflora Multiflora rose Rosaceae

Rubus occidentalis Black raspberry Rosaceae

Rubus ostryifolius High-bush blackberry Rosaceae

Rudbeckia hirta Black-eyed susan Asteraceae

Ruellia humilis Fringe-leaf ruellia Acanthaceae

Ruellia strepens Limestone ruellia Acanthaceae

Rumex altissimus Pale dock Polygalaceae

Rumex crispus Curly dock Polygalaceae

Sagittaria latifolia Common arrowhead Alismataceae

Salix amygdaloides Peach-leaf willow Salicaceae

Salix caroliniana Carolina willow Salicaceae

Salix exigua Sandbar willow Salicaceae

Salix nigra Black willow Salicaceae

Salvia azurea Pitcher's sage; blue sage Lamiaceae

Salvia reflexa Lance-leaf sage Lamiaceae

Sambucus nigra American elderberry Caprifoliaceae

Sanicula canadensis Canadian sanicle Apiaceae

Saponaria officinalis Soapwort Caryophyllaceae

Schedonnardus paniculatus Tumble grass Poaceae

Schizachyrium scoparium Little bluestem Poaceae

Scirpus atrovirens Green bulrush Cyperaceae

Scirpus pendulus Drooping bulrush Cyperaceae

Scirpus tabernaemontani Soft-stem bulrush Cyperaceae

Scrophularia marilandica Maryland figwort Scrophulariaceae

Scutellaria parvula Small skullcap Lamiaceae

Senna marilandica Wild senna Fabaceae

Setaria pumila Yellow bristle grass Poaceae

Setaria viridis Green bristle grass Poaceae

Sicyos angulatus Bur-cucumber Cucurbitaceae

Sida spinosa Prickly sida Malvaceae

Silene antirrhina Sleepy catchfly Caryophyllaceae

Silene stellata Starry silene Caryophyllaceae

Silphium integrifolium Whole-leaf rosinweed Asteraceae

Silphium laciniatum Compassplant Asteraceae

Sisyrinchium campestre Prairie blue-eyed-grass Iridaceae

Smilax herbacea Carrion-flower greenbrier Smilacaceae

Smilax tamnoides Bristly greenbrier Smilacaceae

Solanum carolinense Carolina horse-nettle Solanaceae

Solanum ptychanthum Black nightshade Solanaceae

Solanum rostratum Buffalo-bur nightshade Solanaceae

Solidago canadensis Canadian goldenrod; tall goldenrod Asteraceae

Solidago gigantea Late goldenrod Asteraceae

Solidago missouriensis Missouri goldenrod Asteraceae

Solidago mollis Ashy goldenrod Asteraceae

Solidago petiolaris Downy goldenrod Asteraceae

Solidago speciosa Showy-wand goldenrod Asteraceae

Sonchus asper Prickly sow-thistle Asteraceae

Sorghastrum nutans Indian grass Poaceae

Sorghum halepense Johnson grass Poaceae

Spartina pectinata Prairie cord grass Poaceae

Spermolepis inermis Scaleseed Apiaceae

Sphenopholis obtusata Prairie wedgescale Poaceae

Spiranthes cernua Nodding ladies'-tresses Orchidaceae

Spiranthes vernalis Spring ladies'-tresses Orchidaceae

Sporobolus compositus Tall dropseed Poaceae

Sporobolus cryptandrus Sand dropseed Poaceae

Sporobolus heterolepis Prairie dropseed Poaceae

Sporobolus neglectus Puff-sheath dropseed Poaceae

Sporobolus vaginiflorus Poverty dropseed Poaceae

Stellaria pallida Lesser chickweed Caryophyllaceae

Stenosiphon linifolius Flax-leaf stenosiphon Onagraceae

Strophostyles helvula Trailing wildbean Fabaceae

Strophostyles leiosperma Smooth-seed wildbean Fabaceae

Symphoricarpos orbiculatus Buckbrush Caprifoliaceae

Symphyotrichum drummondii Drummond's aster Asteraceae

Symphyotrichum ericoides Heath aster Asteraceae

Symphyotrichum laeve Smooth aster Asteraceae

Symphyotrichum lanceolatum Panicled aster Asteraceae

Symphyotrichum oblongifolium Aromatic aster Asteraceae

Symphyotrichum oolentangiense Azure aster Asteraceae

Symphyotrichum pilosum Hairy aster Asteraceae

Symphyotrichum sericeum Silky aster Asteraceae

Symphyotrichum subulatum Saltmarsh aster Asteraceae

Taraxacum officinale Dandelion Asteraceae

Teucrium canadense American germander Lamiaceae

Thalictrum dasycarpum Purple meadow-rue Ranunculaceae

Thlaspi arvense Field pennycress Brassicaceae

Tilia americana Basswood Tiliaceae

Torilis arvensis Hedge-parsley Apiaceae

Toxicodendron radicans Poison-ivy Anacardiaceae

Tradescantia bracteata Bracted spiderwort Commelinaceae

Tradescantia ohiensis Ohio spiderwort Commelinaceae

Tragia betonicifolia Nettle-leaf noseburn Euphorbiaceae

Tragia ramosa Catnip noseburn Euphorbiaceae

Tragopogon dubius Goat's-beard; western salsify Asteraceae

Tribulus terrestris Puncturevine Zygophyllaceae

Tridens flavus Purpletop Poaceae

Trifolium pratense Red clover Fabaceae

Trifolium repens White clover Fabaceae

Triodanis leptocarpa Slimpod Venus'-looking-glass Campanulaceae

Triodanis perfoliata Clasping Venus'-looking-glass Campanulaceae

Triosteum perfoliatum Horse-gentian Caprifoliaceae

Tripsacum dactyloides Eastern gamma grass Poaceae

Typha angustifolia Narrow-leaf cat-tail Typhaceae

Typha latifolia Broad-leaf cat-tail Typhaceae

Ulmus americana American elm Ulmaceae

Ulmus pumila Siberian elm Ulmaceae

Ulmus rubra Red elm; slippery elm Ulmaceae

Urtica dioica Stinging nettle Urticaceae

Verbascum blattaria Moth mullein Scrophulariaceae

Verbascum thapsus Flannel mullein Scrophulariaceae

Verbena bracteata Bigbract verbena; prostrate verbena Verbenaceae

Verbena hastata Blue verbena Verbenaceae

Verbena simplex Narrow-leaf verbena Verbenaceae

Verbena stricta Woolly verbena Verbenaceae

Verbena urticifolia Nettle-leaf verbena; white verbena Verbenaceae

Verbesina alternifolia Wing-stem Scrophulariaceae

Vernonia baldwinii Western ironweed Asteraceae

Veronica agrestis Field speedwell Scrophulariaceae

Veronica anagallis-aquatica Water speedwell Scrophulariaceae

Veronica arvensis Corn speedwell Scrophulariaceae

Veronica peregrina Pursland speedwell Scrophulariaceae

Vicia americana American vetch Fabaceae

Vicia villosa Hairy vetch Fabaceae

Viola bicolor Johnny-jump-up; field pansy Violaceae

Viola nephrophylla Common violet Violaceae

Viola pedatifida Prairie violet Violaceae

Viola sororia Downy blue violet Violaceae

Vitis riparia Riverbank grape Vitaceae

Vulpia octoflora Six-weeks fescue Poaceae

Woodsia obtusa Blunt-lobed cliff fern Dryopteridaceae

Xanthium strumarium Cocklebur Asteraceae

Yucca glauca Small soapweed; yucca Agavaceae

Zanthoxylum americanum Prickly-ash Rutaceae

Zigadenus nuttallii Nuttall's death-camas Liliaceae

Zizia aurea Golden alexanders Apiaceae