| Adam's Needle | Yucca filamentosa | Asparagaceae |
| Agastache | Agastache x Queen Nectarine | Lamiaceae |
| Allegheny Monkeyflower | Mimulus ringens | Phrymaceae |
| Allegheny Mountain Spurge | Pachysandra procumbens | Buxaceae |
| Alsike Clover | Trifolium hybridum | Fabaceae |
| American Alumroot | Heuchera americana | Saxifragaceae |
| American Germander | Teucrium canadense | Lamiaceae |
| American Ginseng | Panax quinquefolius | Araliaceae |
| American Spikenard | Aralia racemosa | Araliaceae |
| American Water Horehound | Lycopus americanus | Lamiaceae |
| American Water Plantain | Alisma subcordatum | Alismataceae |
| Anise Hyssop | Agastache foeniculum | Lamiaceae |
| Annual Fleabane | Erigeron annuus | Asteraceae |
| Annual Wormwood | Artemisia annua | Asteraceae |
| Appendaged Waterleaf | Hydrophyllum appendiculatum | Hydrophyllaceae |
| Apple Mint | Mentha suaveolens | Lamiaceae |
| Arrow-Leaved Aster | Symphyotrichum urophyllum | Asteraceae |
| Arrowleaf Tearthumb | Persicaria sagittata | Polygonaceae |
| Ashy Sunflower | Helianthus mollis | Asteraceae |
| Asiatic Dayflower | Commelina communis | Commelinaceae |
| Asparagus | Asparagus officinalis | Asparagaceae |
| Astilbe | Astilbe x arendsii | Saxifragaceae |
| Autumn Crocus | Colchicum autumnale | Colchicaceae |
| Barrenwort | Epimedium x versicolor | Berberidaceae |
| Basil | Ocimum basilicum | Lamiaceae |
| Bat-Faced Cuphea | Cuphea llavea | Lythraceae |
| Beaked Cornsalad | Valerianella radiata | Valerianaceae |
| Beaked Snakeroot | Sanicula trifoliata | Apiaceae |
| Bear Garlic | Allium ursinum | Amaryllidaceae |
| Bearded Beggarticks | Bidens aristosa | Asteraceae |
| Bearded Iris | Iris x germanica | Iridaceae |
| Beechdrops | Epifagus virginiana | Orobanchaceae |
| Beefsteak Plant | Perilla frutescens | Lamiaceae |
| Bent Trillium | Trillium flexipes | Melanthiaceae |
| Biennial Beeblossom | Oenothera gaura | Onagraceae |
| Bird Vetch | Vicia cracca | Fabaceae |
| Birdsfoot Trefoil | Lotus corniculatus | Fabaceae |
| Black Cohosh | Actaea racemosa | Ranunculaceae |
| Black Medic | Medicago lupulina | Fabaceae |
| Black Mustard | Brassica nigra | Brassicaceae |
| Black Nightshade | Solanum nigrum | Solanaceae |
| Black-Eyed Susan | Rudbeckia hirta | Asteraceae |
| Blackseed Plantain | Plantago rugelii | Plantaginaceae |
| Blanket Flower | Gaillardia x grandiflora | Asteraceae |
| Blood Milkwort | Polygala sanguinea | Polygalaceae |
| Bloodroot | Sanguinaria canadensis | Papaveraceae |
| Blue Cohosh | Caulophyllum thalictroides | Berberidaceae |
| Blue Flag Iris | Iris virginica | Iridaceae |
| Blue Plantain Lily | Hosta ventricosa | Asparagaceae |
| Blue Vervain | Verbena hastata | Verbenaceae |
| Blue Wild Indigo | Baptisia australis | Fabaceae |
| Blue-Eyed Grass | Sisyrinchium angustifolium | Iridaceae |
| Blue-Eyed Mary | Collinsia verna | Plantaginaceae |
| Blue-Ridge Buckbean | Thermopsis villosa | Fabaceae |
| Blue-Stemmed Goldenrod | Solidago caesia | Asteraceae |
| Bluestar 'Blue Ice' | Amsonia 'Blue Ice' | Apocynaceae |
| Bouncing Bet | Saponaria officinalis | Caryophyllaceae |
| Broadleaf Dock | Rumex obtusifolius | Polygonaceae |
| Broadleaf Enchanter's Nightshade | Circaea lutetiana | Onagraceae |
| Broadleaf Panicled Aster | Symphyotrichum lanceolatum var. latifolium | Asteraceae |
| Broadleaf Plantain | Plantago major | Plantaginaceae |
| Broadleaf Waterleaf | Hydrophyllum canadense | Hydrophyllaceae |
| Brown-Eyed Susan | Rudbeckia triloba | Asteraceae |
| Bulbous Buttercup | Ranunculus bulbosus | Ranunculaceae |
| Bull Thistle | Cirsium vulgare | Asteraceae |
| Bushy Seedbox | Ludwigia alternifolia | Onagraceae |
| Butter-and-Eggs | Linaria vulgaris | Plantaginaceae |
| Butterfly Weed | Asclepias tuberosa | Apocynaceae |
| Butterweed | Packera glabella | Asteraceae |
| Calico Aster | Symphyotrichum lateriflorum | Asteraceae |
| California Poppy | Eschscholzia californica | Papaveraceae |
| Canada Goldenrod | Solidago canadensis | Asteraceae |
| Canada Thistle | Cirsium arvense | Asteraceae |
| Canadian Anemone | Anemone canadensis | Ranunculaceae |
| Canadian Black Snakeroot | Sanicula canadensis | Apiaceae |
| Canadian White Violet | Viola canadensis | Violaceae |
| Canna Lily | Canna x generalis | Cannaceae |
| Cardinal Flower | Lobelia cardinalis | Campanulaceae |
| Carolina Cranesbill | Geranium carolinianum | Geraniaceae |
| Carpenter's Square | Scrophularia marilandica | Scrophulariaceae |
| Carpetweed | Mollugo verticillata | Molluginaceae |
| Catmint | Nepeta x faassenii | Lamiaceae |
| Catnip | Nepeta cataria | Lamiaceae |
| Celandine Poppy | Stylophorum diphyllum | Papaveraceae |
| Chameleon Plant | Houttuynia cordata | Saururaceae |
| Chameleon Spurge | Euphorbia dulcis 'Chameleon' | Euphorbiaceae |
| Checkered Lily | Fritillaria meleagris | Liliaceae |
| Cherry Bells | Campanula punctata | Campanulaceae |
| Chicory | Cichorium intybus | Asteraceae |
| Chinese Hibiscus | Hibiscus rosa-sinensis | Malvaceae |
| Citronella Geranium | Pelargonium citrosum | Geraniaceae |
| Clammy Ground Cherry | Physalis heterophylla | Solanaceae |
| Clammy Hedge-Hyssop | Gratiola neglecta | Plantaginaceae |
| Clearweed | Pilea pumila | Urticaceae |
| Cleavers | Galium aparine | Rubiaceae |
| Climbing False Buckwheat | Fallopia scandens | Polygonaceae |
| Clustered Black Snakeroot | Sanicula odorata | Apiaceae |
| Clustered Mountainmint | Pycnanthemum muticum | Lamiaceae
|
| Coleus | Coleus scutellarioides | Lamiaceae |
| Coltsfoot | Tussilago farfara | Asteraceae |
| Columbine | Aquilegia canadensis | Ranunculaceae |
| Comfrey | Symphytum officinale | Boraginaceae |
| Common Agrimony | Agrimonia gryposepala | Rosaceae |
| Common Blue Violet | Viola sororia | Violaceae |
| Common Boneset | Eupatorium perfoliatum | Asteraceae |
| Common Bugle | Ajuga reptans | Lamiaceae |
| Common Burdock | Arctium minus | Asteraceae |
| Common Chickweed | Stellaria media | Caryophyllaceae |
| Common Cinquefoil | Potentilla simplex | Rosaceae |
| Common Cocklebur | Xanthium strumarium | Asteraceae |
| Common Grape Hyacinth | Muscari botryoides | Asparagaceae |
| Common Groundsel | Senecio vulgaris | Asteraceae |
| Common Lantana | Lantana camara | Verbenaceae |
| Common Milkweed | Asclepias syriaca | Apocynaceae |
| Common Mullein | Verbascum thapsus | Scrophulariaceae |
| Common Peony | Paeonia officinalis | Paeoniaceae |
| Common Peppergrass | Lepidium virginicum | Brassicaceae |
| Common Purslane | Portulaca oleracea | Portulacaceae |
| Common Quickweed | Galinsoga quadriradiata | Asteraceae |
| Common Ragweed | Ambrosia artemisiifolia | Asteraceae |
| Common Sage | Salvia officinalis | Lamiaceae |
| Common Sneezeweed | Helenium autumnale | Asteraceae |
| Common Snowdrop | Galanthus nivalis | Amaryllidaceae |
| Common Speedwell | Veronica officinalis | Plantaginaceae |
| Common St. John's Wort | Hypericum perforatum | Hypericaceae |
| Common Sunflower | Helianthus annuus | Asteraceae |
| Common Teasel | Dipsacus fullonum | Dipsacaceae |
| Common Three-Seeded Mercury | Acalypha rhomboidea | Euphorbiaceae |
| Common Wormwood | Artemisia vulgaris | Asteraceae |
| Common Yarrow | Achillea millefolium | Asteraceae |
| Compass Plant | Silphium laciniatum | Asteraceae |
| Confederate Violet | Viola sororia f. priceana | Violaceae |
| Coral Bells | Heuchera x 'Timeless Glow' | Saxifragaceae |
| Corn Poppy | Papaver rhoeas | Papaveraceae |
| Corn Speedwell | Veronica arvensis | Scrophulariaceae |
| Cornflower | Centaurea cyanus | Asteraceae |
| Cosmos | Cosmos bipinnatus | Asteraceae |
| Cranefly Orchid | Tipularia discolor | Orchidaceae |
| Creeping Buttercup | Ranunculus repens | Ranunculaceae |
| Creeping Lespedeza | Lespedeza repens | Fabaceae |
| Creeping Yellow Cress | Rorippa sylvestris | Brassicaceae |
| Crimson Clover | Trifolium incarnatum | Fabaceae |
| Crinkleroot | Cardamine diphylla | Brassicaceae |
| Crocosmia | Crocosmia masoniorum | Iridaceae |
| Crooked Aster | Symphyotrichum prenanthoides | Asteraceae |
| Crowdipper | Pinellia ternata | Araceae |
| Culver's Root | Veronicastrum virginicum | Plantaginaceae |
| Cup Plant | Silphium perfoliatum | Asteraceae |
| Curly Dock | Rumex crispus | Polygonaceae |
| Cut-Leaved Teasel | Dipsacus laciniatus | Dipsacaceae |
| Cutleaf Toothwort | Cardamine concatenata | Brassicaceae |
| Cypress Spurge | Euphorbia cyparissias | Euphorbiaceae |
| Daffodil | Narcissus pseudonarcissus | Amaryllidaceae |
| Daisy Fleabane | Erigeron strigosus | Asteraceae |
| Dame's Rocket | Hesperis matronalis | Brassicaceae |
| Dandelion | Taraxacum officinale | Asteraceae |
| Deam's Mercury | Acalypha deamii | Euphorbiaceae |
| Deptford Pink | Dianthus armeria | Caryophyllaceae |
| Devil's Beggarticks | Bidens frondosa | Asteraceae |
| Dillen's Tick Trefoil | Desmodium glabellum | Fabaceae |
| Ditch Stonecrop | Penthorum sedoides | Saxifragaceae |
| Dixie Iris | Iris hexagona | Iridaceae |
| Doorweed | Polygonum aviculare | Polygonaceae |
| Dotted Smartweed | Persicaria punctata | Polygonaceae |
| Downy Agrimony | Agrimonia pubescens | Rosaceae |
| Downy Skullcap | Scutellaria incana | Lamiaceae |
| Downy Wood Mint | Blephilia ciliata | Lamiaceae |
| Downy Yellow False Foxglove | Aureolaria virginica | Scrophulariaceae |
| Drooping Star of Bethlehem | Ornithogalum nutans | Asparagaceae |
| Dropwort | Filipendula vulgaris | Rosaceae |
| Dutchman's Breeches | Dicentra cucullaria | Fumariaceae |
| Dwarf Crested Iris | Iris cristata | Iridaceae |
| Dwarf Joe-Pye Weed | Eutrochium dubium 'Little Joe' | Asteraceae |
| Dwarf Larkspur | Delphinium tricorne | Ranunculaceae |
| Dwarf Snapdragon | Chaenorhinum minus | Plantaginaceae |
| Dwarf St. John's Wort | Hypericum mutilum | Hypericaceae |
| Early Meadow Rue | Thalictrum dioicum | Ranunculaceae |
| Early Saxifrage | Micranthes virginiensis | Saxifragaceae |
| Early Yellowrocket | Barbarea verna | Brassicaceae |
| Eastern Bluestar | Amsonia tabernaemontana | Apocynaceae |
| Elephant Ears | Alocasia macrorrhizos | Araceae |
| Elephant's Foot | Elephantopus carolinianus | Asteraceae |
| Elmleaf Goldenrod | Solidago ulmifolia | Asteraceae |
| English Bluebell | Hyacinthoides non-scripta | Asparagaceae |
| English Lavender | Lavandula angustifolia | Lamiaceae |
| English Plantain | Plantago lanceolata | Plantaginaceae |
| English Thyme | Thymus vulgaris | Lamiaceae |
| European Corn Salad | Valerianella locusta | Valerianaceae |
| European Field Pansy | Viola arvensis | Violaceae |
| European Mouse-Ear Chickweed | Cerastium pumilum | Caryophyllaceae |
| European thimbleweed | Anemone nemorosa | Ranunculaceae |
| Evening Primrose | Oenothera biennis | Onagraceae |
| Everlasting Pea | Lathyrus latifolius | Fabaceae |
| Fall Phlox | Phlox paniculata | Polemoniaceae |
| False Aloe | Manfreda virginica | Agavaceae |
| False Baby's Breath | Galium mollugo | Rubiaceae |
| False Daisy | Eclipta prostrata | Asteraceae |
| False Forget-Me-Not | Brunnera macrophylla | Boraginaceae |
| False Mermaid | Floerkea proserpinacoides | Limnanthaceae |
| False Nettle | Boehmeria cylindrica | Urticaceae |
| False Rue Anemone | Enemion biternatum | Ranunculaceae |
| False Solomon's Seal | Maianthemum racemosum | Asparagaceae |
| False Sunflower | Heliopsis helianthoides | Asteraceae |
| Fernleaf Yellow False Foxglove | Aureolaria pedicularia | Scrophulariaceae |
| Feverfew | Tanacetum parthenium | Asteraceae |
| Few-Flowered Tick Trefoil | Desmodium pauciflorum | Fabaceae |
| Field Garlic | Allium vineale | Amaryllidaceae |
| Field Mustard | Brassica rapa | Brassicaceae |
| Field Pepperweed | Lepidium campestre | Brassicaceae |
| Field Thistle | Cirsium discolor | Asteraceae |
| Fire Pink | Silene virginica | Caryophyllaceae |
| Fleming's Crown Jewels | Hibiscus x moscheutos | Malvaceae |
| Flower-of-an-Hour | Hibiscus trionum | Malvaceae |
| Fogfruit | Phyla lanceolata | Verbenaceae |
| Forked Chickweed | Paronychia fastigiata | Caryophyllaceae |
| Foxglove Beardtongue | Penstemon digitalis | Scrophulariaceae |
| Foxtail Fern | Asparagus densiflorus | Asparagaceae |
| Freckle Face | Hypoestes phyllostachya | Acanthaceae |
| French-Grass | Orbexilum onobrychis | Fabaceae |
| Fritillary | Fritillaria verticillata | Liliaceae |
| Frost Aster | Symphyotrichum pilosum | Asteraceae |
| Garden Mum | Chrysanthemum x morifolium | Asteraceae |
| Garden Pansy | Viola x wittrockiana | Violaceae |
| Garden Phlox | Phlox paniculata 'Jeana' | Polemoniaceae |
| Garden Tomato | Solanum lycopersicum | Solanaceae |
| Garlic Chives | Allium tuberosum | Amaryllidaceae |
| Garlic Mustard | Alliaria petiolata | Brassicaceae |
| Garlic Pennycress | Mummenhoffia alliacea | Brassicaceae |
| Germander Speedwell | Veronica chamaedrys | Plantaginaceae |
| Giant Ragweed | Ambrosia trifida | Asteraceae |
| Giant Snowdrop | Galanthus elwesii | Amaryllidaceae |
| Giant Solomon's Seal | Polygonatum biflorum var. commutatum | Asparagaceae |
| Giant Sunflower | Helianthus giganteus | Asteraceae |
| Glade Mallow | Napaea dioica | Malvaceae |
| Glory-of-the-Snow | Chionodoxa luciliae | Asparagaceae |
| Goatsbeard | Aruncus dioicus | Rosaceae |
| Golden Alexanders | Zizia aurea | Apiaceae |
| Golden Globes Loosestrife | Lysimachia congestiflora 'Outback Sunset' | Primulaceae |
| Golden Oregano | Origanum vulgare var. 'Aureum' | Lamiaceae |
| Golden Ragwort | Packera aurea | Asteraceae |
| Goldenseal | Hydrastis canadensis | Ranunculaceae |
| Gooseneck Loosestrife | Lysimachia clethroides | Primulaceae |
| Grass-Leaved Goldenrod | Euthamia graminifolia | Asteraceae |
| Gray Goldenrod | Solidago nemoralis | Asteraceae |
| Gray-Headed Coneflower | Ratibida pinnata | Asteraceae |
| Great Blue Lobelia | Lobelia siphilitica | Campanulaceae |
| Great Yellow Woodsorrel | Oxalis grandis | Oxalidaceae |
| Green Dragon | Arisaema dracontium | Araceae |
| Green-Headed Coneflower | Rudbeckia laciniata | Asteraceae |
| Ground Ivy | Glechoma hederacea | Lamiaceae |
| Groundnut | Apios americana | Fabaceae |
| Guyandotte Beauty | Synandra hispidula | Lamiaceae |
| Hairy Beardtongue | Penstemon hirsutus | Scrophulariaceae |
| Hairy Bittercress | Cardamine hirsuta | Brassicaceae |
| Hairy Buttercup | Ranunculus sardous | Ranunculaceae |
| Hairy Cat's Ear | Hypochaeris radicata | Asteraceae |
| Hairy False Goldenaster | Heterotheca villosa | Asteraceae |
| Hairy Mountain Mint | Pycnanthemum verticillatum | Lamiaceae |
| Hairy Sweet Cicely | Osmorhiza claytonii | Apiaceae |
| Hairy Wood Mint | Blephilia hirsuta | Lamiaceae |
| Halberd-Leaved Rose Mallow | Hibiscus laevis | Malvaceae |
| Harbinger-of-Spring | Erigenia bulbosa | Apiaceae |
| Heal-All | Prunella vulgaris | Lamiaceae |
| Heart-Leaved Aster | Symphyotrichum cordifolium | Asteraceae |
| Heartleaf Foamflower | Tiarella cordifolia | Saxifragaceae |
| Heartleaf Hedgenettle | Stachys cordata | Lamiaceae |
| Heartleaf Skullcap | Scutellaria ovata | Lamiaceae |
| Heliotrope | Heliotropium arborescens | Boraginaceae |
| Henbit | Lamium amplexicaule | Lamiaceae |
| Hens and Chicks | Sempervivum tectorum | Crassulaceae |
| Hoary Ticktrefoil | Desmodium canescens | Fabaceae |
| Hollow Joe-Pye Weed | Eutrochium fistulosum | Asteraceae |
| Hollyhock | Alcea rosea | Malvaceae |
| Honewort | Cryptotaenia canadensis | Apiaceae |
| Hooked Crowfoot | Ranunculus recurvatus | Ranunculaceae |
| Hophornbeam Copperleaf | Acalypha ostryifolia | Euphorbiaceae |
| Horsebalm | Collinsonia canadensis | Lamiaceae |
| Horsenettle | Solanum carolinense | Solanaceae |
| Horseweed | Conyza canadensis | Asteraceae |
| Hubricht's Bluestar | Amsonia hubrichtii | Apocynaceae |
| Hyacinth | Hyacinthus orientalis | Asparagaceae |
| Hybrid Cattail | Typha x glauca | Typhaceae |
| Impatiens | Impatiens walleriana | Balsaminaceae |
| Indian Blanket | Gaillardia pulchella | Asteraceae |
| Indian Hemp | Apocynum cannabinum | Apocynaceae |
| Indian Pipe | Monotropa uniflora | Monotropaceae |
| Indian Tobacco | Lobelia inflata | Campanulaceae |
| Italian Arum | Arum italicum | Araceae |
| Ivy-Leaved Speedwell | Veronica hederifolia | Plantaginaceae |
| Jack-in-the-Pulpit | Arisaema triphyllum | Araceae |
| Jacob's Ladder | Polemonium reptans | Polemoniaceae |
| Japanese Anemone | Anemone hupehensis | Ranunculaceae |
| Japanese Chaff Flower | Achyranthes japonica | Amaranthaceae |
| Japanese Clover | Kummerowia striata | Fabaceae |
| Japanese Hedge Parsley | Torilis japonica | Apiaceae |
| Japanese Knotweed | Fallopia japonica | Polygonaceae |
| Japanese Knotweed 'Crimson Beautry' | Fallopia japonica 'Crimson Beauty' | Polygonaceae |
| Jerusalem Artichoke | Helianthus tuberosus | Asteraceae |
| Jimsonweed | Datura stramonium | Solanaceae |
| Kenilworth ivy | Cymbalaria muralis | Plantaginaceae |
| Kidney-Leaved Crowfoot | Ranunculus abortivus | Ranunculaceae |
| Korean Clover | Kummerowia stipulacea | Fabaceae |
| Lady's Thumb | Persicaria maculosa | Polygonaceae |
| Lamb's Ear | Stachys byzantina | Lamiaceae |
| Lamb's Quarters | Chenopodium album | Chenopodiaceae |
| Lanceleaf Coreopsis | Coreopsis lanceolata | Asteraceae |
| Large Houstonia | Houstonia purpurea | Rubiaceae |
| Large-Flowered Bellwort | Uvularia grandiflora | Colchicaceae |
| Large-Flowered Trillium | Trillium grandiflorum | Melanthiaceae |
| Large-Flowered Valerian | Valeriana pauciflora | Valerianaceae |
| Largebract Ticktrefoil | Desmodium cuspidatum | Fabaceae |
| Largeleaf Waterleaf | Hydrophyllum macrophyllum | Hydrophyllaceae |
| Late Thoroughwort | Eupatorium serotinum | Asteraceae |
| Lemon Balm | Melissa officinalis | Lamiaceae |
| Lemon Beebalm | Monarda citriodora | Lamiaceae |
| Lenten Rose | Helleborus orientalis | Ranunculaceae |
| Lesser Celandine | Ficaria verna | Ranunculaceae |
| Lesser Hop Trefoil | Trifolium dubium | Fabaceae |
| Lesser Ladies' Tresses | Spiranthes ovalis | Orchidaceae |
| Lily of the Valley | Convallaria majalis | Asparagaceae |
| Lily-Leaved Twayblade | Liparis liliifolia | Orchidaceae |
| Lilyturf | Liriope muscari | Asparagaceae |
| Long-Bracted Tickseed Sunflower | Bidens polylepis | Asteraceae |
| Longleaf Ground Cherry | Physalis longifolia | Solanaceae |
| Lopseed | Phryma leptostachya | Phrymaceae |
| Love-in-a-Mist | Nigella damascena | Ranunculaceae |
| Low Hop Clover | Trifolium campestre | Fabaceae |
| Lungwort | Pulmonaria officinalis | Boraginaceae |
| Lyreleaf Sage | Salvia lyrata | Lamiaceae |
| Mad-Dog Skullcap | Scutellaria lateriflora | Lamiaceae |
| Marigold | Tagetes minuta | Asteraceae |
| Mayapple | Podophyllum peltatum | Berberidaceae |
| Mexican Sunflower | Tithonia rotundifolia | Asteraceae |
| Miami Mist | Phacelia purshii | Hydrophyllaceae |
| Mild Waterpepper | Persicaria hydropiperoides | Polygonaceae |
| Milky Wild Indigo | Baptisia lactea | Fabaceae |
| Mistflower | Conoclinium coelestinum | Asteraceae |
| Mock Strawberry | Duchesnea indica | Rosaceae |
| Moneywort | Lysimachia nummularia | Primulaceae |
| Moss Phlox | Phlox subulata | Polemoniaceae |
| Moth Mullein | Verbascum blattaria | Scrophulariaceae |
| Mouse-Ear Chickweed | Cerastium vulgatum | Caryophyllaceae |
| Mullein Foxglove | Dasistoma macrophylla | Scrophulariaceae |
| Naked Ladies | Lycoris squamigera | Amaryllidaceae |
| Naked-Flowered Tick Trefoil | Desmodium nudiflorum | Fabaceae |
| Narrowleaf Mountainmint | Pycnanthemum tenuifolium | Lamiaceae |
| Narrowleaf Paleseed | Leucospora multifida | Plantaginaceae |
| New England Aster | Symphyotrichum novae-angliae | Asteraceae |
| New Guinea Impatiens | Impatiens hawkeri | Balsaminaceae |
| Night-Flowering Catchfly | Silene noctiflora | Caryophyllaceae |
| Nipplewort | Lapsana communis | Asteraceae |
| Nodding Bur-Marigold | Bidens cernua | Asteraceae |
| Nodding Ladies' Tresses | Spiranthes cernua | Orchidaceae |
| Nodding Onion | Allium cernuum | Amaryllidaceae |
| Nodding Rattlesnakeroot | Prenanthes crepidinea | Asteraceae |
| Nodding Spurge | Euphorbia nutans | Euphorbiaceae |
| Northern Water Plantain | Alisma triviale | Alismataceae |
| Northern Blue Flag | Iris versicolor | Iridaceae |
| Northern Corn Salad | Valerianella umbilicata | Valerianaceae |
| Northern Plains Blazing Star | Liatris ligulistylis | Asteraceae |
| Northern Wild Senna | Senna hebecarpa | Fabaceae |
| Obedient Plant | Physostegia virginiana | Lamiaceae |
| Ohio Spiderwort | Tradescantia ohiensis | Commelinaceae |
| Orange Daylily | Hemerocallis fulva | Asphodelaceae |
| Orange Mint | Mentha aquatica var. citrata | Lamiaceae |
| Oregano | Origanum vulgare | Lamiaceae |
| Oriental Lady's Thumb | Persicaria longiseta | Polygonaceae |
| Ornamental Onion | Allium albopilosum | Amaryllidaceae |
| Ox-Eye Daisy | Leucanthemum vulgare | Asteraceae |
| Pale Smartweed | Persicaria lapathifolia | Polygonaceae |
| Pale-Spiked Lobelia | Lobelia spicata | Campanulaceae |
| Panicled Tick Trefoil | Desmodium paniculatum | Fabaceae |
| Parasol Whitetop | Doellingeria umbellata | Asteraceae |
| Parsley | Petroselinum crispum | Apiaceae |
| Parsnip | Pastinaca sativa | Apiaceae |
| Partridge Pea | Chamaecrista fasciculata | Fabaceae |
| Pennsylvania Bitter Cress | Cardamine pensylvanica | Brassicaceae |
| Peppermint | Mentha x piperita | Lamiaceae |
| Peppermint Surprise Lily | Lycoris incarnata | Amaryllidaceae |
| Perennial Sowthistle | Sonchus arvensis | Asteraceae |
| Perfoliate Bellwort | Uvularia perfoliata | Colchicaceae |
| Perfoliate Pennycress | Microthlaspi perfoliatum | Brassicaceae |
| Persian Speedwell | Veronica persica | Scrophulariaceae |
| Pheasant's Eye | Narcissus poeticus | Amaryllidaceae |
| Philadelphia Fleabane | Erigeron philadelphicus | Asteraceae |
| Pilewort | Erechtites hieraciifolius | Asteraceae |
| Pineapple Sage | Salvia elegans | Lamiaceae |
| Pink Evening Primrose | Oenothera speciosa | Onagraceae |
| Pink Ivy-Leaved Speedwell | Veronica sublobata | Plantaginaceae |
| Pink Lily of the Valley | Convallaria majalis var. 'Rosea' | Asparagaceae |
| Pink Redstem | Ammannia latifolia | Lythraceae |
| Pinkweed | Persicaria pensylvanica | Polygonaceae |
| Plains Coreopsis | Coreopsis tinctoria | Asteraceae |
| Plantain-Leaved Pussytoes | Antennaria plantaginifolia | Asteraceae |
| Pointed-Leaved Tick Trefoil | Desmodium glutinosum | Fabaceae |
| Poison Hemlock | Conium maculatum | Apiaceae |
| Pokeweed | Phytolacca americana | Phytolaccaceae |
| Prairie Coreopsis | Coreopsis palmata | Asteraceae |
| Prairie Dock | Silphium terebinthinaceum | Asteraceae |
| Prairie Mimosa | Desmanthus illinoensis | Fabaceae |
| Prairie Trillium | Trillium recurvatum | Melanthiaceae |
| Prickly Lettuce | Lactuca serriola | Asteraceae |
| Prickly Mallow | Sida spinosa | Malvaceae |
| Prickly Sowthistle | Sonchus asper | Asteraceae |
| Prostrate Spurge | Euphorbia prostrata | Euphorbiaceae |
| Purple Bergamot | Monarda media | Lamiaceae |
| Purple Coneflower | Echinacea purpurea | Asteraceae |
| Purple Cress | Cardamine douglassii | Brassicaceae |
| Purple Dead-Nettle | Lamium purpureum | Lamiaceae |
| Purple False Foxglove | Agalinis purpurea | Orobanchaceae |
| Purple Foxglove | Digitalis purpurea | Scrophulariaceae |
| Purple Giant Hyssop | Agastache scrophulariifolia | Lamiaceae |
| Purple Loosestrife | Lythrum salicaria | Lythraceae |
| Purple Passionflower | Passiflora incarnata | Passifloraceae |
| Purple Perilla | Perilla frutescens var. crispa | Lamiaceae |
| Purple Rocket | Iodanthus pinnatifidus | Brassicaceae |
| Purple-Leaf Willowherb | Epilobium coloratum | Onagraceae |
| Purple-Node Joe-Pye Weed | Eutrochium purpureum | Asteraceae |
| Purple-Stem Beggarticks | Bidens connata | Asteraceae |
| Purpletop Vervain | Verbena bonariensis | Verbenaceae |
| Purslane Speedwell | Veronica peregrina | Scrophulariaceae |
| Queen Anne's Lace | Daucus carota | Apiaceae |
| Queen of the Prairie | Filipendula rubra | Rosaceae |
| Quickweed | Galinsoga parviflora | Asteraceae |
| Ragged Fringed Orchid | Platanthera lacera | Orchidaceae |
| Ramps | Allium tricoccum | Amaryllidaceae |
| Rattlesnake Master | Eryngium yuccifolium | Apiaceae |
| Red Barrenwort | Epimedium x rubrum | Berberidaceae |
| Red Clover | Trifolium pratense | Fabaceae |
| Red Turtlehead | Chelone obliqua | Plantaginaceae |
| Reticulated Iris | Iris reticulata | Iridaceae |
| Riddell's Goldenrod | Solidago riddellii | Asteraceae |
| Rock Buttercup | Ranunculus micranthus | Ranunculaceae |
| Rose Campion | Silene coronaria | Caryophyllaceae |
| Rosemary | Salvia rosmarinus | Lamiaceae |
| Rosepink | Sabatia angularis | Gentianaceae |
| Rough Cinquefoil | Potentilla norvegica | Rosaceae |
| Round-Headed Bush Clover | Lespedeza capitata | Fabaceae |
| Roundleaf Ragwort | Packera obovata | Asteraceae |
| Royal Catchfly | Silene regia | Caryophyllaceae |
| Rue Anemone | Thalictrum thalictroides | Ranunculaceae |
| Running Buffalo Clover | Trifolium stoloniferum | Fabaceae |
| Safflower | Carthamus tinctorius | Asteraceae |
| Sawtooth Sunflower | Helianthus grosseserratus | Asteraceae |
| Scarlet Beebalm | Monarda didyma | Lamiaceae |
| Scarlet Pimpernel | Anagallis arvensis | Primulaceae |
| Sessile Blazing Star | Liatris spicata | Asteraceae |
| Sessile Trillium | Trillium sessile | Melanthiaceae |
| Sharp-lobed Hepatica | Anemone acutiloba | Ranunculaceae |
| Sharpwing Monkeyflower | Mimulus alatus | Phrymaceae |
| Shasta Daisy | Leucanthemum x superbum | Asteraceae |
| Shepherd's Purse | Capsella bursa-pastoris | Brassicaceae |
| Shining Bedstraw | Galium concinnum | Rubiaceae |
| Shooting Star | Primula meadia | Primulaceae |
| Short's Aster | Symphyotrichum shortii | Asteraceae |
| Showy Goldenrod | Solidago speciosa | Asteraceae |
| Showy Tick Trefoil | Desmodium canadense | Fabaceae |
| Siberian Iris | Iris sibirica | Iridaceae |
| Siberian Squill | Scilla siberica | Asparagaceae |
| Sicilian Honey Garlic | Nectaroscordum siculum | Amaryllidaceae |
| Siebold Viburnum | Viburnum sieboldii | Adoxaceae |
| Skunk Cabbage | Symplocarpus foetidus | Araceae |
| Slim Amaranth | Amaranthus hybridus | Amaranthaceae |
| Small White Aster | Symphyotrichum racemosum | Asteraceae |
| Small-Flowered Agrimony | Agrimonia parviflora | Rosaceae |
| Small-Flowered Leafcup | Polymnia canadensis | Asteraceae |
| Smooth Beardtongue | Penstemon laevigatus | Scrophulariaceae |
| Smooth Blue Aster | Symphyotrichum laeve | Asteraceae |
| Smooth Forked Nailwort | Paronychia canadensis | Caryophyllaceae |
| Smooth Ground Cherry | Physalis subglabrata | Solanaceae |
| Smooth Hedgenettle | Stachys tenuifolia | Lamiaceae |
| Smooth Hydrangea | Hydrangea arborescens 'Annabelle' | Hydrangeaceae |
| Smooth Rock Cress | Boechera laevigata | Brassicaceae |
| Smooth Solomon's Seal | Polygonatum biflorum | Liliaceae |
| Smooth Wild Petunia | Ruellia strepens | Acanthaceae |
| Smooth Yellow Violet | Viola pubescens var. scabriuscula | Violaceae |
| Smoother Sweet Cicely | Osmorhiza longistylis | Apiaceae |
| Snapdragon | Antirrhinum majus | Plantaginaceae |
| Snow Trillium | Trillium nivale | Melanthiaceae |
| Southern Wild Senna | Senna marilandica | Fabaceae |
| Spanish Bluebell | Hyacinthoides hispanica | Asparagaceae |
| Spanish Needles | Bidens bipinnata | Asteraceae |
| Spearmint | Mentha spicata | Lamiaceae |
| Spider Flower | Cleome hybrid | Cleomaceae |
| Spotted Horse Mint | Monarda punctata | Lamiaceae |
| Spotted Jewelweed | Impatiens capensis | Balsaminaceae |
| Spotted Joe-Pye Weed | Eutrochium maculatum | Asteraceae |
| Spotted Knapweed | Centaurea stoebe | Asteraceae |
| Spotted Spurge | Euphorbia maculata | Euphorbiaceae |
| Spotted St. John's Wort | Hypericum punctatum | Hypericum |
| Spreading Sandmat | Euphorbia humistrata | Euphorbiaceae |
| Spring Avens | Geum vernum | Rosaceae |
| Spring Beauty | Claytonia virginica | Montiaceae |
| Spring Cress | Cardamine bulbosa | Brassicaceae |
| Spring Crocus | Crocus vernus | Iridaceae |
| Spring Forget-Me-Not | Myosotis verna | Boraginaceae |
| Spring Snowflake | Leucojum vernum | Amaryllidaceae |
| Spring Sternbergia | Sternbergia fischeriana | Amaryllidaceae |
| Squawroot | Conopholis americana | Orobanchaceae |
| Squirrel Corn | Dicentra canadensis | Fumariaceae |
| Star Chickweed | Stellaria pubera | Caryophyllaceae |
| Star-of-Bethlehem | Ornithogalum umbellatum | Asparagaceae |
| Starry Campion | Silene stellata | Caryophyllaceae |
| Stiff Goldenrod | Solidago rigida | Asteraceae |
| Strawstem Beggar-Ticks | Bidens tripartita | Asteraceae |
| Stringy Stonecrop | Sedum sarmentosum | Crassulaceae |
| Striped Cream Violet | Viola striata | Violaceae |
| Striped Squill | Puschkinia scilloides | Asparagaceae |
| Sullivant's Milkweed | Asclepias sullivantii | Apocynaceae |
| Sulphur Cinquefoil | Potentilla recta | Rosaceae |
| Summer Snowflake | Leucojum aestivum | Amaryllidaceae |
| Swamp Buttercup | Ranunculus hispidus | Ranunculaceae |
| Swamp Milkweed | Asclepias incarnata | Apocynaceae |
| Swamp Rose Mallow | Hibiscus moscheutos | Malvaceae |
| Sweet Alyssum | Lobularia maritima | Brassicaceae |
| Sweet Black-Eyed Susan | Rudbeckia subtomentosa | Asteraceae |
| Sweet Goldenrod | Solidago odora | Asteraceae |
| Sweet-Scented Bedstraw | Galium triflorum | Rubiaceae |
| Sweet-William | Dianthus barbatus | Caryophyllaceae |
| Sweetflag | Acorus americanus | Acoraceae |
| Sweetleaf | Stevia rebaudiana | Asteraceae |
| Tall Bellflower | Campanulastrum americanum | Campanulaceae |
| Tall Blazing Star | Liatris aspera | Asteraceae |
| Tall Blue Lettuce | Lactuca biennis | Asteraceae |
| Tall Coreopsis | Coreopsis tripteris | Asteraceae |
| Tall False Hawksbeard | Youngia japonica | Asteraceae |
| Tall Goldenrod | Solidago altissima | Asteraceae |
| Tall Ironweed | Vernonia gigantea | Asteraceae |
| Tall Meadow Rue | Thalictrum pubescens | Ranunculaceae |
| Tall Rattlesnakeroot | Prenanthes altissima | Asteraceae |
| Tall Thimbleweed | Anemone virginiana | Ranunculaceae |
| Tall Thoroughwort | Eupatorium altissimum | Asteraceae |
| Tansy | Tanacetum vulgare | Asteraceae |
| Terrestrial Starwort | Callitriche terrestris | Callitrichaceae |
| Thin-Leaved Sunflower | Helianthus decapetalus | Asteraceae |
| Threadleaf Coreopsis | Coreopsis verticillata | Asteraceae |
| Thyme-Leaved Sandwort | Arenaria serpyllifolia | Caryophyllaceae |
| Thyme-Leaved Speedwell | Veronica serpyllifolia | Scrophulariaceae |
| Toothcup | Rotala ramosior | Lythraceae |
| Toothed Spurge | Euphorbia davidii | Euphorbiaceae |
| Trailing Fuzzy-Bean | Strophostyles helvola | Fabaceae |
| Tutsan | Hypericum androsaemum | Hypericaceae |
| Twinleaf | Jeffersonia diphylla | Berberidaceae |
| Two-Flower Dwarf Dandelion | Krigia biflora | Asteraceae |
| Twoleaf Miterwort | Mitella diphylla | Saxifragaceae |
| Upright Carrion Flower | Smilax ecirrhata | Smilacaceae |
| Variegated Solomon's Seal | Polygonatum odoratum 'Variegatum' | Asparagaceae |
| Velvetleaf | Abutilon theophrasti | Malvaceae |
| Venus' Looking Glass | Triodanis perfoliata | Campanulaceae |
| Violet Wood Sorrel | Oxalis violacea | Oxalidaceae |
| Virginia Bluebells | Mertensia virginica | Boraginaceae |
| Virginia Bugleweed | Lycopus virginicus | Lamiaceae |
| Virginia Buttonweed | Diodia virginiana | Rubiaceae |
| Virginia Knotweed | Persicaria virginiana | Polygonaceae |
| Virginia Mountainmint | Pycnanthemum virginianum | Lamiaceae |
| Virginia Snakeroot | Aristolochia serpentaria | Aristolochiaceae |
| Virginia Spiderwort | Tradescantia virginiana | Commelinaceae |
| Virginia Stickseed | Hackelia virginiana | Boraginaceae |
| Virginia Yellow Flax | Linum virginianum | Linaceae |
| Water Hemlock | Cicuta maculata | Apiaceae |
| Wax Begonia | Begonia cucullata | Begoniaceae |
| White Angelonia | Angelonia angustifolia 'Archangel' | Plantaginaceae |
| White Avens | Geum canadense | Rosaceae |
| White Baneberry | Actaea pachypoda | Ranunculaceae |
| White Campion | Silene latifolia | Caryophyllaceae |
| White Clover | Trifolium repens | Fabaceae |
| White Deadnettle | Lamium album | Lamiaceae |
| White False Indigo | Baptisia alba | Fabaceae |
| White Gentian | Gentiana alba | Gentianaceae |
| White Lettuce | Prenanthes alba | Asteraceae |
| White Panicle Aster | Symphyotrichum lanceolatum | Asteraceae |
| White Sagebrush | Artemisia ludoviciana | Asteraceae |
| White Snakeroot | Ageratina altissima | Asteraceae |
| White Sweet Clover | Melilotus albus | Fabaceae |
| White Trout Lily | Erythronium albidum | Liliaceae |
| White Turtlehead | Chelone glabra | Plantaginaceae |
| White Vervain | Verbena urticifolia | Verbenaceae |
| Whitlow Grass | Draba verna | Brassicaceae |
| Wholeleaf Rosinweed | Silphium integrifolium | Asteraceae |
| Whorled Loosestrife | Lysimachia quadrifolia | Primulaceae |
| Whorled Milkwort | Polygala verticillata | Polygalaceae |
| Whorled Rosinweed | Silphium trifoliatum | Asteraceae |
| Wild Bergamot | Monarda fistulosa | Lamiaceae |
| Wild Blue Phlox | Phlox divaricata | Polemoniaceae |
| Wild Chervil | Chaerophyllum procumbens | Apiaceae |
| Wild Chive | Allium schoenoprasum | Amaryllidaceae |
| Wild Garlic | Allium canadense | Amaryllidaceae |
| Wild Geranium | Geranium maculatum | Geraniaceae |
| Wild Ginger | Asarum canadense | Aristolochiaceae |
| Wild Hyacinth | Camassia scilloides | Asparagaceae |
| Wild Hydgrangea | Hydrangea arborescens | Hydrangeaceae |
| Wild Lettuce | Lactuca canadensis | Asteraceae |
| Wild Licorice | Galium circaezans | Rubiaceae |
| Wild Madder | Galium obtusum | Rubiaceae |
| Wild Mint | Mentha arvensis | Lamiaceae |
| Wild Quinine | Parthenium integrifolium | Asteraceae |
| Wild Stonecrop | Sedum ternatum | Crassulaceae |
| Willowleaf Lettuce | Lactuca saligna | Asteraceae |
| Windflower | Anemone blanda | Ranunculaceae |
| Winged Loosestrife | Lythrum alatum | Lythraceae |
| Wingstem | Verbesina alternifolia | Asteraceae |
| Winter Aconite | Eranthis hyemalis | Ranunculaceae |
| Wintercress | Barbarea vulgaris | Brassicaceae |
| Wishbone Flower | Torenia fournieri | Linderniaceae |
| Wister's Coralroot | Corallorhiza wisteriana | Orchidaceae |
| Wood Anemone | Anemone quinquefolia | Ranunculaceae |
| Wood Nettle | Laportea canadensis | Urticaceae |
| Woodland Lettuce | Lactuca floridana | Asteraceae |
| Woodland Sunflower | Helianthus divaricatus | Asteraceae |
| Yellow Archangel | Lamiastrum galeobdolon | Lamiaceae |
| Yellow Corydalis | Corydalis flavula | Fumariaceae |
| Yellow Daylily | Hemerocallis lilioasphodelus | Asphodelaceae |
| Yellow Flower Leafcup | Smallanthus uvedalia | Asteraceae |
| Yellow Giant Hyssop | Agastache nepetoides | Lamiaceae |
| Yellow Goatsbeard | Tragopogon dubius | Asteraceae |
| Yellow Iris | Iris pseudacorus | Iridaceae |
| Yellow Jewelweed | Impatiens pallida | Balsaminaceae |
| Yellow King-Devil | Hieracium caespitosum | Asteraceae |
| Yellow Lady's Slipper | Cypripedium calceolus | Orchidaceae |
| Yellow Passionflower | Passiflora lutea | Passifloraceae |
| Yellow Pimpernel | Taenidia integerrima | Apiaceae |
| Yellow Spring Bedstraw | Galium verum | Rubiaceae |
| Yellow Stargrass | Hypoxis hirsuta | Hypoxidaceae |
| Yellow Sundrops | Calylophus serrulatus | Onagraceae |
| Yellow Sweet Clover | Melilotus officinalis | Fabaceae |
| Yellow Trillium | Trillium luteum | Melanthiaceae |
| Yellow Trout Lily | Erythronium americanum | Liliaceae |
| Yellow Violet | Viola pubescens | Violaceae |
| Yellow Wild Indigo | Baptisia sphaerocarpa | Fabaceae |
| Yellow Wood Sorrel | Oxalis stricta | Oxalidaceae |
| Yellowroot | Xanthorhiza simplicissima | Ranunculaceae |
| Zigzag Goldenrod | Solidago flexicaulis | Asteraceae |
| Zigzag Spiderwort | Tradescantia subaspera | Commelinaceae |
| Zinnia | Zinnia violacea | Asteraceae |