How to use
(This program is mostly intuitive, so only a few things are touched on here.)
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| Filters |
The key to identifying a plant is to use the filters. Simply select various attributes that you know, and the second column will only show the plants that fit the filters selected. Notice the "Number found" at the bottom of the column. |
| Picture type |
You can select which type of picture you would like to see for comparison. For instance, if you would like to see only flower pictures, select "Flower". |
| Common names |
To look at a list of common names for a particular plant, simply hover over the common name that is listed and a popup will show any alternate names that are known. |
| Zoom |
To get a closer look at the selected picture, use the mouse wheel to zoom in and out. Click and drag the picture to pan it. |
| ID info |
Some of the pictures are tagged with more information that will help in assisting with plant identification. Just hover over the picture, and if there is more info, it will pop up. |
| ID tips |
Click on the "ID tips" button and, if available, a .pdf file will be downloaded to your computer which has more detailed information about identifying that plant. If your browser is set to block popups, you'll get an error message and you'll need to unblock popups to get the file. Files currently available for:
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Photos by Paul McAfee
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| Abutilon theophrasti | Velvetleaf |
| Acalypha rhomboidea | Common threeseed mercury |
| Acer negundo | Boxelder |
| Acer nigrum | Black maple |
| Acer platanoides | Norway maple |
| Acer rubrum | Red maple |
| Acer saccharinum | Silver maple |
| Acer saccharum | Sugar maple |
| Achillea millefolium | Common yarrow |
| Actaea pachypoda | White baneberry |
| Actaea rubra | Red baneberry |
| Adiantum pedatum | Northern maidenhair |
| Aegopodium podagraria | Bishop's goutweed |
| Aesculus glabra | Ohio buckeye |
| Aesculus hippocastanum | Horse chestnut |
| Agalinis paupercula | Smallflower false foxglove |
| Agalinis purpurea | Purple false foxglove |
| Ageratina altissima | White snakeroot |
| Agrimonia gryposepala | Tall hairy agrimony |
| Agrimonia parviflora | Harvestlice |
| Agrimonia pubescens | Soft agrimony |
| Agrimonia rostellata | Beaked agrimony |
| Ailanthus altissima | Tree of heaven |
| Ajuga reptans | Common bugle |
| Albizia julibrissin | Silktree |
| Aletris farinosa | White colicroot |
| Alisma subcordatum | American water plantain |
| Alliaria petiolata | Garlic mustard |
| Allium burdickii | Narrowleaf wild leek |
| Allium canadense | Meadow garlic |
| Allium cernuum | Nodding onion |
| Allium sativum | Cultivated garlic |
| Allium schoenoprasum | Wild chives |
| Allium tricoccum | Ramp |
| Allium vineale | Wild garlic |
| Alnus serrulata | Hazel alder |
| Amaranthus retroflexus | Redroot amaranth |
| Ambrosia artemisiifolia | Annual ragweed |
| Ambrosia trifida | Great ragweed |
| Amelanchier arborea | Common serviceberry |
| Amelanchier laevis | Allegheny serviceberry |
| Amphicarpaea bracteata | American hogpeanut |
| Anemone canadensis | Canadian anemone |
| Anemone quinquefolia | Wood anemone |
| Anemone virginiana | Tall thimbleweed |
| Angelica atropurpurea | Purplestem angelica |
| Antennaria neglecta | Field pussytoes |
| Antennaria parlinii | Parlin's pussytoes |
| Anthemis cotula | Stinking chamomile |
| Aplectrum hyemale | Adam and Eve |
| Apios americana | Groundnut |
| Apocynum androsaemifolium | Spreading dogbane |
| Apocynum cannabinum | Indianhemp |
| Aquilegia canadensis | Red columbine |
| Aquilegia vulgaris | European columbine |
| Arabis laevigata | Smooth rockcress |
| Aralia nudicaulis | Wild sarsaparilla |
| Arctium lappa | Greater burdock |
| Arctium minus | Lesser burdock |
| Arenaria serpyllifolia | Thymeleaf sandwort |
| Arisaema dracontium | Green dragon |
| Arisaema triphyllum | Jack in the pulpit |
| Arnoglossum atriplicifolium | Pale Indian plantain |
| Artemisia campestris | Field sagewort |
| Asarum canadense | Canadian wildginger |
| Asclepias exaltata | Poke milkweed |
| Asclepias incarnata | Swamp milkweed |
| Asclepias syriaca | Common milkweed |
| Asclepias tuberosa | Butterfly milkweed |
| Asclepias verticillata | Whorled milkweed |
| Asimina triloba | Pawpaw |
| Asparagus officinalis | Garden asparagus |
| Asplenium platyneuron | Ebony spleenwort |
| Asplenium rhizophyllum | Walking fern |
| Astragalus canadensis | Canadian milkvetch |
| Athyrium filix-femina | Common ladyfern |
| Aureolaria flava | Smooth yellow false foxglove |
| Aureolaria pedicularia | Fernleaf yellow false foxglove |
| Baptisia alba | White wild indigo |
| Baptisia australis | Blue wild indigo |
| Baptisia tinctoria | Horseflyweed |
| Barbarea vulgaris | Garden yellowrocket |
| Belamcanda chinensis | Blackberry lily |
| Berberis thunbergii | Japanese barberry |
| Betula nigra | River birch |
| Betula papyrifera | Paper birch |
| Betula populifolia | Gray birch |
| Bidens cernua | Nodding beggartick |
| Bidens connata | Purplestem beggarticks |
| Bidens coronata | Crowned beggarticks |
| Bidens frondosa | Devil's beggartick |
| Bidens vulgata | Big devils beggartick |
| Blephilia hirsuta | Hairy pagoda-plant |
| Boehmeria cylindrica | Smallspike false nettle |
| Botrychium dissectum | Cutleaf grapefern |
| Botrychium virginianum | Rattlesnake fern |
| Brassica nigra | Black mustard |
| Calopogon tuberosus | Tuberous grasspink |
| Caltha palustris | Yellow marsh marigold |
| Calystegia sepium | Hedge false bindweed |
| Camassia scilloides | Atlantic camas |
| Campanula aparinoides | Marsh bellflower |
| Campanula rapunculoides | Rampion bellflower |
| Campanulastrum americanum | American bellflower |
| Campsis radicans | Trumpet creeper |
| Capsella bursa-pastoris | Shepherd's purse |
| Cardamine bulbosa | Bulbous bittercress |
| Cardamine concatenata | Cutleaf toothwort |
| Cardamine douglassii | Limestone bittercress |
| Cardamine hirsuta | Hairy bittercress |
| Cardamine parviflora | Sand bittercress |
| Cardamine pensylvanica | Pennsylvania bittercress |
| Carduus nutans | Nodding plumeless thistle |
| Carex albursina | White bear sedge |
| Carpinus caroliniana | American hornbeam |
| Carya cordiformis | Bitternut hickory |
| Carya glabra | Pignut hickory |
| Carya laciniosa | Shellbark hickory |
| Carya ovalis | Red hickory |
| Carya ovata | Shagbark hickory |
| Catalpa speciosa | Northern catalpa |
| Caulophyllum thalictroides | Blue cohosh |
| Celastrus orbiculatus | Oriental bittersweet |
| Celastrus scandens | American bittersweet |
| Celosia argentea | Silver cock's comb |
| Celtis occidentalis | Common hackberry |
| Ceanothus americanus | New Jersey tea |
| Cephalanthus occidentalis | Common buttonbush |
| Cerastium arvense | Field chickweed |
| Cerastium fontanum | Common mouse-ear chickweed |
| Cercis canadensis | Eastern redbud |
| Chaerophyllum procumbens | Spreading chervil |
| Chamaecrista fasciculata | Partridge pea |
| Chamaecrista nictitans | Sensitive partridge pea |
| Chamaesyce maculata | Spotted sandmat |
| Chamaesyce nutans | Eyebane |
| Chelidonium majus | Celandine |
| Chelone glabra | White turtlehead |
| Chenopodium album | Lambsquarters |
| Cichorium intybus | Chicory |
| Cicuta bulbifera | Bulblet-bearing water hemlock |
| Cicuta maculata | Spotted water hemlock |
| Circaea lutetiana | Broadleaf enchanter's nightshade |
| Cirsium arvense | Canada thistle |
| Cirsium muticum | Swamp thistle |
| Cirsium vulgare | Bull thistle |
| Claytonia virginica | Virginia springbeauty |
| Clematis virginiana | Devil's darning needles |
| Collinsia verna | Spring blue eyed Mary |
| Collinsonia canadensis | Richweed |
| Comandra umbellata | Bastard toadflax |
| Commelina communis | Asiatic dayflower |
| Comptonia peregrina | Sweet fern |
| Conium maculatum | Poison hemlock |
| Conoclinium coelestinum | Blue mistflower |
| Conopholis americana | American cancer-root |
| Convallaria majalis | European lily of the valley |
| Convolvulus arvensis | Field bindweed |
| Conyza canadensis | Canadian horseweed |
| Coreopsis lanceolata | Lanceleaf tickseed |
| Coreopsis tripteris | Tall tickseed |
| Cornus alternifolia | Alternateleaf dogwood |
| Cornus drummondii | Roughleaf dogwood |
| Cornus florida | Flowering dogwood |
| Cornus obliqua | Silky dogwood |
| Cornus racemosa | Gray dogwood |
| Cornus sericea | Redosier dogwood |
| Corylus americana | American hazelnut |
| Cryptotaenia canadensis | Canadian honewort |
| Cynanchum laeve | Honeyvine |
| Cypripedium parviflorum | Lesser yellow lady's slipper |
| Cystopteris protrusa | Lowland bladderfern |
| Dasiphora fruticosa | Shrubby cinquefoil |
| Dasistoma macrophylla | Mullein foxglove |
| Datura stramonium | Jimsonweed |
| Daucus carota | Queen Anne's lace |
| Decodon verticillatus | Swamp loosestrife |
| Delphinium tricorne | Dwarf larkspur |
| Desmanthus illinoensis | Illinois bundleflower |
| Desmodium canadense | Showy ticktrefoil |
| Desmodium glutinosum | Pointedleaf ticktrefoil |
| Desmodium nudiflorum | Nakedflower ticktrefoil |
| Desmodium perplexum | Perplexed ticktrefoil |
| Desmodium sessilifolium | Sessileleaf ticktrefoil |
| Dianthus armeria | Deptford pink |
| Dicentra canadensis | Squirrel corn |
| Dicentra cucullaria | Dutchman's breeches |
| Dioscorea villosa | Wild yam |
| Diospyros virginiana | Common persimmon |
| Diplazium pycnocarpon | Glade fern |
| Dipsacus fullonum | Fuller's teasel |
| Dipsacus laciniatus | Cutleaf teasel |
| Dodecatheon meadia | Pride of Ohio |
| Doellingeria umbellata | Parasol Whitetop |
| Draba verna | Spring draba |
| Drosera intermedia | Spoonleaf sundew |
| Dryopteris carthusiana | Spinulose woodfern |
| Dryopteris goldiana | Goldie's woodfern |
| Duchesnea indica | Indian strawberry |
| Echinacea pallida | Pale purple coneflower |
| Echinacea purpurea | Eastern purple coneflower |
| Echinocystis lobata | Wild cucumber |
| Echinops sphaerocephalus | Great globethistle |
| Eclipta prostrata | False daisy |
| Elaeagnus umbellata | Autumn olive |
| Enemion biternatum | Eastern false rue anemone |
| Epifagus virginiana | Beechdrops |
| Epilobium coloratum | Purpleleaf willowherb |
| Epilobium strictum | Downy willowherb |
| Equisetum arvense | Field horsetail |
| Equisetum hyemale | Scouringrush horsetail |
| Erechtites hieraciifolia | American burnweed |
| Erigenia bulbosa | Harbinger of spring |
| Erigeron annuus | Eastern daisy fleabane |
| Erigeron philadelphicus | Philadelphia fleabane |
| Erodium cicutarium | Redstem stork's bill |
| Erucastrum gallicum | Common dogmustard |
| Eryngium yuccifolium | Button eryngo |
| Erysimum cheiranthoides | Wormseed wallflower |
| Erysimum repandum | Spreading wallflower |
| Erythronium albidum | White fawnlily |
| Erythronium americanum | Dogtooth violet |
| Euonymus atropurpureus | Burningbush |
| Euonymus fortunei | Winter creeper |
| Euonymus obovatus | Running strawberry bush |
| Eupatoriadelphus maculatus | Spotted trumpetweed |
| Eupatorium album | White thoroughwort |
| Eupatorium altissimum | Tall thoroughwort |
| Eupatorium perfoliatum | Common boneset |
| Eupatorium purpureum | Sweetscented joe pye weed |
| Eupatorium serotinum | Lateflowering thoroughwort |
| Euphorbia corollata | Flowering spurge |
| Euphorbia cyparissias | Cypress spurge |
| Euphorbia dentata | Toothed spurge |
| Fagopyrum esculentum | Buckwheat |
| Fagus grandifolia | American beech |
| Filipendula rubra | Queen of the prairie |
| Floerkea proserpinacoides | False mermaidweed |
| Fragaria virginiana | Virginia strawberry |
| Frasera caroliniensis | American columbo |
| Fraxinus americana | White ash |
| Fraxinus nigra | Black ash |
| Fraxinus pennsylvanica | Green ash |
| Fraxinus quadrangulata | Blue ash |
| Galinsoga quadriradiata | Shaggy soldier |
| Galium aparine | Stickywilly |
| Galium circaezans | Licorice bedstraw |
| Galium tinctorium | Stiff marsh bedstraw |
| Galium triflorum | Fragrant bedstraw |
| Gaultheria procumbens | Eastern teaberry |
| Gaura biennis | Biennial beeblossom |
| Geranium maculatum | Spotted geranium |
| Gentiana andrewsii | Closed bottle gentian |
| Gentianella quinquefolia | Agueweed, |
| Geum canadense | White avens |
| Geum laciniatum | Rough avens |
| Geum vernum | Spring avens |
| Glechoma hederacea | Ground ivy |
| Gleditsia triacanthos | Honeylocust |
| Glycine max | Soybean |
| Goodyera pubescens | Downy rattlesnake plantain |
| Gratiola neglecta | Clammy hedgehyssop |
| Gymnocladus dioicus | Kentucky coffeetree |
| Hackelia virginiana | Beggarslice |
| Hamamelis virginiana | American witchhazel |
| Hedera helix | English ivy |
| Helenium autumnale | Common sneezeweed |
| Helianthus annuus | Common sunflower |
| Helianthus decapetalus | Thinleaf sunflower |
| Helianthus divaricatus | Woodland sunflower |
| Helianthus giganteus | Giant sunflower |
| Helianthus grosseserratus | Sawtooth sunflower |
| Helianthus mollis | Ashy sunflower |
| Helianthus occidentalis | Fewleaf sunflower |
| Heliopsis helianthoides | Smooth oxeye |
| Hemerocallis fulva | Orange daylily |
| Hepatica nobilis | Hepatica |
| Heracleum maximum | Common cowparsnip |
| Hesperis matronalis | Dames rocket |
| Heuchera americana | American alumroot |
| Hibiscus moscheutos | Crimsoneyed rosemallow |
| Hibiscus syriacus | Rose of Sharon |
| Hibiscus trionum | Flower of an hour |
| Hieracium scabrum | Rough hawkweed |
| Hordeum jubatum | Foxtail barley |
| Houstonia longifolia | Longleaf summer bluet |
| Humulus lupulus | Common hop |
| Hydrangea arborescens | Wild hydrangea |
| Hydrastis canadensis | Goldenseal |
| Hydrocotyle umbellata | Manyflower marshpennywort |
| Hydrophyllum appendiculatum | Great waterleaf |
| Hydrophyllum macrophyllum | Largeleaf waterleaf |
| Hydrophyllum virginianum | Eastern waterleaf |
| Hypericum kalmianum | Kalm's St. Johnswort |
| Hypericum perforatum | Common St. Johnswort |
| Hypericum punctatum | Spotted St. Johnswort |
| Ilex verticillata | Common winterberry |
| Impatiens capensis | Jewelweed |
| Impatiens pallida | Pale touch-me-not |
| Iodanthus pinnatifidus | Purplerocket |
| Ipomoea hederacea | Ivyleaf morning-glory |
| Ipomoea purpurea | Tall morning-glory |
| Iris cristata | Dwarf crested iris |
| Iris pseudacorus | Paleyellow iris |
| Iris virginica | Virginia iris |
| Jeffersonia diphylla | Twinleaf |
| Juglans cinerea | Butternut |
| Juglans nigra | Black walnut |
| Juniperus virginiana | Eastern redcedar |
| Justicia americana | American water-willow |
| Krigia biflora | Twoflower dwarfdandelion |
| Krigia virginica | Virginia dwarfdandelion |
| Lactuca canadensis | Canada lettuce |
| Lactuca floridana | Woodland lettuce |
| Lactuca saligna | Willowleaf lettuce |
| Lactuca serriola | Prickly lettuce |
| Lamium amplexicaule | Henbit deadnettle |
| Lamium purpureum | Purple deadnettle |
| Lamprocapnos spectabilis | Bleeding heart |
| Laportea canadensis | Canadian woodnettle |
| Larix laricina | Tamarack |
| Lathyrus latifolius | Perennial pea |
| Lathyrus palustris | Marsh pea |
| Leonurus cardiaca | Common motherwort |
| Lepidium campestre | Field pepperweed |
| Leucanthemum vulgare | Oxeye daisy |
| Leucojum aestivum | Summer snowflake |
| Lepidium densiflorum | Common pepperweed |
| Liatris aspera | Tall blazing star |
| Liatris pycnostachya | Prairie blazing star |
| Liatris scariosa | Devil's bite |
| Liatris squarrosa | Scaly blazing star |
| Ligustrum obtusifolium | Border privet |
| Lilium michiganense | Michigan lily |
| Lindera benzoin | Northern spicebush |
| Lindernia dubia | Yellowseed false pimpernel |
| Liquidambar styraciflua | Sweetgum |
| Liriodendron tulipifera | Tuliptree |
| Lobelia cardinalis | Cardinalflower |
| Lobelia inflata | Indian-tobacco |
| Lobelia siphilitica | Great blue lobelia |
| Lobelia spicata | Palespike lobelia |
| Lonicera dioica | Limber honeysuckle |
| Lonicera japonica | Japanese honeysuckle |
| Lonicera maackii | Amur honeysuckle |
| Lonicera reticulata | Grape honeysuckle |
| Lonicera tatarica | Tatarian honeysuckle |
| Lotus corniculatus | Bird's-foot trefoil |
| Ludwigia alternifolia | Seedbox |
| Ludwigia palustris | Marsh seedbox |
| Ludwigia polycarpa | Manyfruit primrose-willow |
| Lunaria annua | Annual honesty |
| Lycopodium clavatum | Running clubmoss |
| Lycopodium digitatum | Fan clubmoss |
| Lycopodium obscurum | Rare clubmoss |
| Lycopus americanus | American water horehound |
| Lycopus uniflorus | Northern bugleweed |
| Lycopus virginicus | Virginia water horehound |
| Lysimachia ciliata | Fringed loosestrife |
| Lysimachia quadrifolia | Whorled yellow loosestrife |
| Lysimachia lanceolata | Lanceleaf loosestrife |
| Lysimachia nummularia | Creeping jenny |
| Lysimachia terrestris | Earth loosestrife |
| Lysimachia thyrsiflora | Tufted loosestrife |
| Lythrum alatum | Winged lythrum |
| Lythrum salicaria | Purple loosestrife |
| Magnolia acuminata | Cucumber-tree |
| Magnolia tripetala | Umbrella-tree |
| Maianthemum canadense | Canada mayflower |
| Maianthemum racemosum | Feathery false lily of the valley |
| Maianthemum stellatum | Starry false lily of the valley |
| Malus coronaria | Sweet crab apple |
| Malus pumila | Paradise apple |
| Malva moschata | Musk mallow |
| Malva neglecta | Common mallow |
| Matricaria discoidea | Disc mayweed |
| Matteuccia struthiopteris | Ostrich fern |
| Medeola virginiana | Indian cucumber |
| Medicago lupulina | Black medick |
| Melilotus officinalis | Yellow sweetclover |
| Melissa officinalis | Common balm |
| Menispermum canadense | Common moonseed |
| Mentha aquatica | Water mint |
| Mentha arvensis | Wild mint |
| Mertensia virginica | Virginia bluebells |
| Mimulus alatus | Sharpwing monkeyflower |
| Mimulus ringens | Allegheny monkeyflower |
| Mitella diphylla | Twoleaf miterwort |
| Moehringia lateriflora | Bluntleaf sandwort |
| Monarda clinopodia | White bergamot |
| Monarda didyma | Scarlet beebalm |
| Monarda fistulosa | Wild bergamot |
| Monarda punctata | Spotted beebalm |
| Monotropa uniflora | Indianpipe |
| Morus rubra | Red mulberry |
| Muscari botryoides | Common grape hyacinth |
| Myosotis scorpioides | True forget-me-not |
| Myosotis verna | Spring forget-me-not |
| Narcissus poeticus | Poet's narcissus |
| Narcissus pseudonarcissus | Daffodil |
| Nepeta cataria | Catnip |
| Nuphar lutea | Yellow pond-lily |
| Nymphaea odorata | American white waterlily |
| Nyssa sylvatica | Blackgum |
| Oenothera biennis | Common evening primrose |
| Oligoneuron riddellii | Riddell's goldenrod |
| Oligoneuron rigidum | Stiff goldenrod |
| Onoclea sensibilis | Sensitive fern |
| Opuntia humifusa | Prickly pear cactus |
| Ornithogalum umbellatum | Sleepydick |
| Osmorhiza claytonii | Clayton's sweetroot |
| Osmorhiza longistylis | Longstyle sweetroot |
| Osmunda cinnamomea | Cinnamon fern |
| Osmunda regalis | Royal fern |
| Ostrya virginiana | Hophornbeam |
| Oxalis stricta | Common yellow oxalis |
| Oxalis violacea | Violet woodsorrel |
| Oxypolis rigidior | Stiff cowbane |
| Packera aurea | Golden ragwort |
| Packera glabella | Butterweed |
| Packera obovata | Roundleaf ragwort |
| Panax quinquefolius | American ginseng |
| Parietaria pensylvanica | Pennsylvania pellitory |
| Parnassia glauca | Fen grass of Parnassus |
| Parthenium integrifolium | wild quinine |
| Parthenocissus quinquefolia | Virginia creeper |
| Parthenocissus vitacea | Woodbine |
| Pastinaca sativa | Wild parsnip |
| Pedicularis canadensis | Canadian lousewort |
| Pedicularis lanceolata | Swamp lousewort |
| Pseudognaphalium obtusifolium | Rabbit-tobacco |
| Peltandra virginica | Green arrow arum |
| Penstemon digitalis | Talus slope penstemon |
| Penstemon hirsutus | Hairy beardtongue |
| Penthorum sedoides | Ditch stonecrop |
| Perilla frutescens | Beefsteakplant |
| Phacelia purshii | Miami mist |
| Phalaris arundinacea | Reed canarygrass |
| Phegopteris hexagonoptera | Broad beechfern |
| Phleum pratense | Timothy |
| Phlox divaricata | Wild blue phlox |
| Phlox paniculata | Fall phlox |
| Photinia melanocarpa | Black chokeberry |
| Phragmites australis | Common reed |
| Phryma leptostachya | American lopseed |
| Phyla lanceolata | Lanceleaf fogfruit |
| Physalis heterophylla | Clammy groundcherry |
| Physalis longifolia | Longleaf groundcherry |
| Physocarpus opulifolius | Common ninebark |
| Physostegia virginiana | Obedient plant |
| Phytolacca americana | American pokeweed |
| Pilea pumila | Canadian clearweed |
| Pinus resinosa | Red pine |
| Pinus strobus | Eastern white pine |
| Pinus sylvestris | Scots pine |
| Plantago lanceolata | Narrowleaf plantain |
| Plantago rugelii | Blackseed plantain |
| Platanthera ciliaris | Yellow fringed orchid |
| Platanus occidentalis | American sycamore |
| Podophyllum peltatum | Mayapple |
| Polemonium reptans | Greek valerian |
| Polygala sanguinea | Purple milkwort |
| Polygonatum biflorum | Smooth Solomon's seal |
| Polygonatum pubescens | Hairy Solomon's seal |
| Polygonum amphibium | Water knotweed |
| Polygonum arifolium | Halberdleaf tearthumb |
| Polygonum aviculare | Prostrate knotweed |
| Polygonum cespitosum | Oriental lady's thumb |
| Polygonum hydropiperoides | Swamp smartweed |
| Polygonum lapathifolium | Curlytop knotweed |
| Polygonum pensylvanicum | Pennsylvania smartweed |
| Polygonum persicaria | Spotted ladysthumb |
| Polygonum punctatum | Dotted smartweed |
| Polygonum sagittatum | Arrowleaf tearthumb |
| Polygonum scandens | Climbing false buckwheat |
| Polygonum virginianum | Jumpseed |
| Polymnia canadensis | Whiteflower leafcup |
| Polystichum acrostichoides | Christmas fern |
| Pontederia cordata | Pickerelweed |
| Populus balsamifera | Balsam poplar |
| Populus deltoides | Eastern cottonwood |
| Populus grandidentata | Bigtooth aspen |
| Populus tremuloides | Quaking aspen |
| Potamogeton amplifolius | Largeleaf pondweed |
| Potamogeton crispus | Curly pondweed |
| Potentilla argentea | Silver cinquefoil |
| Potentilla arguta | Tall cinquefoil |
| Potentilla norvegica | Norwegian cinquefoil |
| Potentilla recta | Sulphur cinquefoil |
| Potentilla simplex | Common cinquefoil |
| Prenanthes altissima | Tall rattlesnakeroot |
| Proserpinaca palustris | Marsh mermaidweed |
| Prunella vulgaris | Common selfheal |
| Prunus americana | American plum |
| Prunus avium | Sweet cherry |
| Prunus cerasus | Sour cherry |
| Prunus persica | Peach |
| Prunus serotina | Black cherry |
| Prunus virginiana | Chokecherry |
| Pteridium aquilinum | Western brackenfern |
| Pycnanthemum tenuifolium | Narrowleaf mountainmint |
| Pycnanthemum virginianum | Virginia mountainmint |
| Pyrus calleryana | Callery pear |
| Pyrus communis | Common pear |
| Quercus alba | White oak |
| Quercus bicolor | Swamp white oak |
| Quercus coccinea | Scarlet oak |
| Quercus imbricaria | Shingle oak |
| Quercus macrocarpa | Bur oak |
| Quercus muehlenbergii | Chinkapin oak |
| Quercus palustris | Pin oak |
| Quercus prinus | Chestnut oak |
| Quercus rubra | Northern red oak |
| Quercus shumardii | Shumard's oak |
| Quercus velutina | Black oak |
| Ranunculus abortivus | Littleleaf buttercup |
| Ranunculus ficaria | Fig buttercup |
| Ranunculus flabellaris | Yellow water buttercup |
| Ranunculus hispidus | Bristly buttercup |
| Ranunculus longirostris | Longbeak buttercup |
| Ranunculus recurvatus | Blisterwort |
| Ranunculus sceleratus | Cursed buttercup |
| Ratibida columnifera | Upright prairie coneflower |
| Ratibida pinnata | Pinnate prairie coneflower |
| Rhamnus cathartica | Common buckthorn |
| Rheum rhabarbarum | Garden rhubarb |
| Rhus aromatica | Fragrant sumac |
| Rhus copallinum | Winged sumac |
| Rhus glabra | Smooth sumac |
| Rhus typhina | Staghorn sumac |
| Rhynchospora alba | White beaksedge |
| Ribes americanum | American black currant |
| Ribes cynosbati | Eastern prickly gooseberry |
| Ribes uva-crispa | European gooseberry |
| Robinia hispida | Bristly locust |
| Robinia pseudoacacia | Black locust |
| Rorippa palustris | Bog yellowcress |
| Rorippa sylvestris | Creeping yellowcress |
| Rosa canina | Dog rose |
| Rosa carolina | Carolina rose |
| Rosa multiflora | Multiflora rose |
| Rosa palustris | Swamp rose |
| Rosa setigera | Climbing rose |
| Rubus allegheniensis | Allegheny blackberry |
| Rubus occidentalis | Black raspberry |
| Rubus pensilvanicus | Pennsylvania blackberry |
| Rudbeckia hirta | Blackeyed Susan |
| Rudbeckia laciniata | Cutleaf coneflower |
| Rudbeckia triloba | Browneyed Susan |
| Ruellia strepens | Limestone wild petunia |
| Rumex acetosella | Common sheep sorrel |
| Rumex crispus | Curly dock |
| Rumex obtusifolius | Bitter dock |
| Rumex verticillatus | Swamp dock |
| Sagittaria latifolia | Broadleaf arrowhead |
| Salix discolor | Pussy willow |
| Salix nigra | Black willow |
| Sambucus nigra | American black elderberry |
| Samolus valerandi | Seaside brookweed |
| Sanguinaria canadensis | Bloodroot |
| Sanicula canadensis | Canadian blacksnakeroot |
| Sanicula odorata | Clustered blacksnakeroot |
| Saponaria officinalis | Bouncingbet |
| Sassafras albidum | Sassafras |
| Saururus cernuus | Lizard's tail |
| Schizachyrium scoparium | Little bluestem |
| Scilla siberica | Siberian squill |
| Scrophularia marilandica | Carpenter's square |
| Scutellaria incana | Hoary skullcap |
| Scutellaria lateriflora | Blue skullcap |
| Scutellaria nervosa | Veiny skullcap |
| Scutellaria ovata | Heartleaf skullcap |
| Securigera varia | Crownvetch |
| Sedum ternatum | Woodland stonecrop |
| Senecio vulgaris | Old-man-in-the-Spring |
| Senna hebecarpa | American senna |
| Sida spinosa | Prickly fanpetals |
| Silene latifolia | Bladder campion |
| Silene stellata | Widowsfrill |
| Silene virginica | Fire pink |
| Silphium integrifolium | Wholeleaf rosinweed |
| Silphium laciniatum | Compassplant |
| Silphium perfoliatum | Cup plant |
| Silphium terebinthinaceum | Prairie rosinweed |
| Silphium trifoliatum | Whorled rosinweed |
| Sisyrinchium angustifolium | Narrowleaf blue-eyed grass |
| Sium suave | Hemlock waterparsnip |
| Smilax ecirrhata | Upright carrionflower |
| Smilax glauca | Cat greenbrier |
| Smilax lasioneura | Blue Ridge carrionflower |
| Smilax tamnoides | Bristly greenbrier |
| Solanum carolinense | Carolina horsenettle |
| Solanum dulcamara | Climbing nightshade |
| Solanum lycopersicum | Garden tomato |
| Solanum ptycanthum | West Indian nightshade |
| Solidago caesia | Wreath goldenrod |
| Solidago flexicaulis | Zigzag goldenrod |
| Solidago nemoralis | Gray goldenrod |
| Solidago patula | Roundleaf goldenrod |
| Solidago ulmifolia | Elmleaf goldenrod |
| Sonchus arvensis | Field sowthistle |
| Sonchus asper | Spiny sowthistle |
| Sonchus oleraceus | Common sowthistle |
| Sorbus decora | Northern mountain ash |
| Sparganium americanum | American bur-reed |
| Sparganium eurycarpum | Broadfruit bur-reed |
| Spiraea alba | White meadowsweet |
| Spiranthes cernua | Nodding lady's tresses |
| Stachys tenuifolia | Smooth hedgenettle |
| Staphylea trifolia | American bladdernut |
| Stellaria media | Common chickweed |
| Stylophorum diphyllum | Celandine poppy |
| Symphyotrichum cordifolium | Common blue wood aster |
| Symphyotrichum novae-angliae | New England aster |
| Symphyotrichum pilosum | Hairy white oldfield aster |
| Symplocarpus foetidus | Skunk cabbage |
| Synandra hispidula | Guyandotte beauty |
| Syringa vulgaris | Common lilac |
| Taenidia integerrima | Yellow pimpernel |
| Tanacetum vulgare | Common tansy |
| Taraxacum officinale | Common dandelion |
| Taxodium distichum | Bald cypress |
| Tephrosia virginiana | Virginia tephrosia |
| Teucrium canadense | Canada germander |
| Thalictrum dasycarpum | Purple meadow-rue |
| Thalictrum dioicum | Early meadow-rue |
| Thalictrum thalictroides | Rue anemone |
| Thaspium barbinode | Hairyjoint meadowparsnip |
| Thelypteris noveboracensis | New York fern |
| Thelypteris palustris | Eastern marsh fern |
| Thlaspi arvense | Field pennycress |
| Tilia americana | American basswood |
| Tipularia discolor | Crippled cranefly |
| Torilis arvensis | Spreading hedgeparsley |
| Toxicodendron radicans | Eastern poison ivy |
| Toxicodendron vernix | Poison sumac |
| Tradescantia ohiensis | Bluejacket |
| Tradescantia subaspera | Zigzag spiderwort |
| Tragopogon lamottei | Jack-go-to-bed-at-noon |
| Trifolium campestre | Field clover |
| Trifolium dubium | Suckling clover |
| Trifolium hybridum | Alsike clover |
| Trifolium pratense | Red clover |
| Trifolium repens | White clover |
| Trillium flexipes | Nodding wakerobin |
| Trillium grandiflorum | White trillium |
| Trillium nivale | Snow trillium |
| Trillium recurvatum | Bloody butcher |
| Trillium sessile | Toadshade |
| Triodanis perfoliata | Clasping Venus' looking-glass |
| Triosteum aurantiacum | Orangefruit horse-gentian |
| Triticum aestivum | Common wheat |
| Tsuga canadensis | Eastern hemlock |
| Typha angustifolia | Narrowleaf cattail |
| Typha latifolia | Broadleaf cattail |
| Ulmus alata | Winged elm |
| Ulmus americana | American elm |
| Ulmus pumila | Siberian elm |
| Ulmus rubra | Slippery elm |
| Urtica dioica | Stinging nettle |
| Utricularia macrorhiza | Common bladderwort |
| Uvularia grandiflora | Largeflower bellwort |
| Vaccinium angustifolium | Lowbush blueberry |
| Vaccinium corymbosum | Highbush blueberry |
| Valeriana officinalis | Garden valerian |
| Valeriana pauciflora | Largeflower valerian |
| Valerianella chenopodiifolia | Goosefoot cornsalad |
| Veratrum woodii | Wood's bunchflower |
| Verbascum blattaria | Moth mullein |
| Verbascum thapsus | Common mullein |
| Verbena hastata | Swamp verbena |
| Verbena stricta | Hoary verbena |
| Verbena urticifolia | White vervain |
| Verbesina alternifolia | Wingstem |
| Vernonia gigantea | Giant ironweed |
| Veronica arvensis | Corn speedwell |
| Veronica peregrina | Neckweed |
| Veronica serpyllifolia | Thymeleaf speedwell |
| Veronicastrum virginicum | Culver's root |
| Viburnum acerifolium | Mapleleaf viburnum |
| Viburnum dentatum | Southern arrowwood |
| Viburnum opulus | European cranberrybush |
| Viburnum prunifolium | Blackhaw |
| Vinca minor | Common periwinkle |
| Viola canadensis | Canadian white violet |
| Viola cucullata | Marsh blue violet |
| Viola labradorica | Alpine violet |
| Viola pubescens | Downy yellow violet |
| Viola rostrata | Longspur violet |
| Viola sororia | Common blue violet |
| Viola striata | Striped cream violet |
| Vitis riparia | Riverbank grape |
| Woodsia obtusa | Bluntlobe cliff fern |
| Xanthium strumarium | Rough cocklebur |
| Xyris torta | Slender yelloweyed grass |
| Zanthoxylum americanum | Common pricklyash |
| Zizia aurea | Golden zizia |
