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Aaron's Rod Thermopsis villosa Adam's Needle Yucca filamentosa Adder's-Tongue Fern Ophioglossum vulgatum Agastache Agastache x Queen Nectarine Allegheny Monkeyflower Mimulus ringens Allegheny Mountain Spurge Pachysandra procumbens Alsike Clover Trifolium hybridum American Alumroot Heuchera americana American Basswood Tilia americana American Beak Grass Diarrhena americana American Beautyberry Callicarpa americana American Beech Fagus grandifolia American Bellflower Campanulastrum americanum American Bittersweet Celastrus scandens American Bugleweed Lycopus americanus American Crabapple Malus coronaria American Cranberry Viburnum Viburnum opulus var. opulus American Cress Barbarea verna American Elm Ulmus americana American Germander Teucrium canadense American Ginseng Panax quinquefolius American Hazelnut Corylus americana American Hog Peanut Amphicarpaea bracteata American Holly Ilex opaca American Hornbeam Carpinus caroliniana American Lotus Nelumbo lutea American Plantain Plantago rugelii American Spikenard Aralia racemosa American Sycamore Platanus occidentalis American Tulip Tree Liriodendron tulipifera American Water Horehound Lycopus americanus American Water Plantain Alisma subcordatum American Water-Willow Justicia americana American Wintergreen Gaultheria procumbens American Wisteria Wisteria frutescens American Witch-Hazel Hamamelis virginiana American Yellowwood Cladrastis kentukea Amur Cork Tree Phellodendron amurense Amur Honeysuckle Lonicera maackii Amur Maple Acer ginnala Anise Hyssop Agastache foeniculum Annabelle hydrangea Hydrangea arborescens 'Annabelle' Annual Bluegrass Poa annua Annual Fleabane Erigeron annuus Annual Ragweed Ambrosia artemisiifolia Annual Ryegrass Lolium multiflorum Annual Woolly-bean Strophostyles helvola Annual Wormwood Artemisia annua Appendaged Waterleaf Hydrophyllum appendiculatum Apple Mint Mentha suaveolens Apple Shadbush Amelanchier arborea Arrow Arum Peltandra virginica Arrow-Leaved Aster Symphyotrichum urophyllum Arrow-Leaved Tearthumb Persicaria sagittata Arrowleaf Tearthumb Persicaria sagittata Arrowwood Viburnum Viburnum dentatum Ash-Leaved Maple Acer negundo Ashy Sunflower Helianthus mollis Asiatic Bittersweet Celastrus orbiculatus Asiatic Dayflower Commelina communis Asiatic Witch-Hazel Hamamelis x intermedia Asparagus Asparagus officinalis Astilbe Astilbe x arendsii Austrian Pine Pinus nigra Autumm Bentgrass Agrostis perennans Autumn Clematis Clematis terniflora Autumn Crocus Colchicum autumnale Autumn Olive Elaeagnus umbellata Autumn Wings Cucurbita sp. Bald Cypress Taxodium distichum Balsam Fir Abies balsamea Barnyardgrass Echinochloa crus-galli Barrenwort Epimedium x versicolor Basil Ocimum basilicum Basswood Tilia americana Bat-Faced Cuphea Cuphea llavea Beaked Cornsalad Valerianella radiata Beaked Panicum Coleataenia anceps Beaked Snakeroot Sanicula trifoliata Bear Garlic Allium ursinum Bearded Beggarticks Bidens aristosa Bearded Iris Iris x germanica Bearded Shorthusk Brachyelytrum erectum Bebb's Oak Quercus x bebbiana Bee Balm Monarda punctata Beebalm Monarda fistulosa Beechdrops Epifagus virginiana Beefsteak Plant Perilla frutescens Beggar's Button Arctium minus Beggar's Button Arctium minus Beggar's Lice Hackelia virginiana Bent Trillium Trillium flexipes Bermuda Grass Cynodon dactylon Bicknell's Sedge Carex bicknellii Biennial Beeblossom Oenothera gaura Big Bluestem Andropogon gerardi Big Chickweed Cerastium vulgatum Bigtooth Aspen Populus grandidentata Bird Vetch Vicia cracca Bird's-Foot Trefoil Lotus corniculatus Birdsfoot Trefoil Lotus corniculatus Bishop's Cap Mitella diphylla Bishop's Hat Epimedium x rubrum Bitter Dock Rumex obtusifolius Bitternut Hickory Carya cordiformis Bittersweet Nightshade Solanum dulcamara Black Baneberry Actaea racemosa Black Bent Agrostis gigantea Black Cherry Prunus serotina Black Chokeberry Aronia melanocarpa Black Cohosh Actaea racemosa Black Gum Nyssa sylvatica Black Locust Robinia pseudoacacia Black Maple Acer nigrum Black Medic Medicago lupulina Black Mustard Brassica nigra Black Nightshade Solanum nigrum Black Oak Quercus velutina Black Raspberry Rubus occidentalis Black Snakeroot Sanicula odorata Black Snakeroot Actaea racemosa Black Tupelo Nyssa sylvatica Black Walnut Juglans nigra Black Willow Salix nigra Black Wood Cress Barbarea verna Black-Eyed Susan Rudbeckia hirta Black-Eyed Susan Vine Thunbergia alata Blackhaw Viburnum prunifolium Blackhaw Viburnum Viburnum prunifolium Blackseed Plantain Plantago rugelii Bladdernut Staphylea trifolia Blanket Flower Gaillardia x grandiflora Blood Milkwort Polygala sanguinea Bloodroot Sanguinaria canadensis Bloodwort Achillea millefolium Bloody Butcher Trillium recurvatum Blue Ash Fraxinus quadrangulata Blue Beech Carpinus caroliniana Blue Cohosh Caulophyllum thalictroides Blue Dogbane Amsonia tabernaemontana Blue Flag Iris Iris virginica Blue Giant Hyssop Agastache foeniculum Blue Pfitzer Juniper Juniperus x pfitzeriana Blue Plantain Lily Hosta ventricosa Blue Ridge Carrion Flower Smilax lasioneura Blue Vervain Verbena hastata Blue Wild Indigo Baptisia australis Blue-Eyed Grass Sisyrinchium angustifolium Blue-Eyed Mary Collinsia verna Blue-Ridge Buckbean Thermopsis villosa Blue-Stemmed Goldenrod Solidago caesia Bluejacket Tradescantia ohiensis Bluestar 'Blue Ice' Amsonia 'Blue Ice' Bluevine Cynanchum laeve Bluntlobe Cliff Fern Woodsia obtusa Bog Rush Juncus biflorus Boneset Eupatorium perfoliatum Bosc's Panicgrass Dichanthelium boscii Boston Fern Nephrolepis exaltata Boston Ivy Parthenocissus tricuspidata Bottlebrush Buckeye Aesculus parviflora Bottlebrush Grass Elymus hystrix Bouncing Bet Saponaria officinalis Boxelder Acer negundo Bracken Fern Pteridium aquilinum Bradford Pear Pyrus calleryana Brazilian Watermeal Wolffia brasiliensis Brazilian Waterweed Egeria densa Bridalwreath Spirea Spiraea prunifolia Bride's Feathers Aruncus dioicus Bristle Grass Setaria pumila Bristly Buttercup Ranunculus hispidus Bristly Buttercup Ranunculus hispidus Bristly Greenbrier Smilax tamnoides Bristly Sedge Carex comosa Broad Beech Fern Phegopteris hexagonoptera Broad Looseflower Sedge Carex laxiflora Broadfruit Bur-Reed Sparganium eurycarpum Broadleaf Arrowhead Sagittaria latifolia Broadleaf Cattail Typha latifolia Broadleaf Dock Rumex obtusifolius Broadleaf Enchanter's Nightshade Circaea lutetiana Broadleaf Panicled Aster Symphyotrichum lanceolatum var. latifolium Broadleaf Plantain Plantago major Broadleaf Waterleaf Hydrophyllum canadense Bronze Fern Sceptridium dissectum f. obliquum Broomsedge Andropogon virginicus Broomsedge Bluestem Andropogon virginicus Brown Fox Sedge Carex vulpinoidea Brown-Eyed Susan Rudbeckia triloba Bulbous Buttercup Ranunculus bulbosus Bull Thistle Cirsium vulgare Bundleflower Desmanthus illinoensis Bur Cucumber Sicyos angulatus Bur Oak Quercus macrocarpa Bur-Reed Sedge Carex sparganioides Burning Bush Euonymus alatus Bush Honeysuckle Lonicera maackii Bushy Seedbox Ludwigia alternifolia Butter-and-Eggs Linaria vulgaris Butterfly Bush Buddleja davidii Butterfly Milweed Asclepias tuberosa Butterfly Weed Asclepias tuberosa Butterprint Abutilon theophrasti Butterweed Packera glabella Buttonbush Cephalanthus occidentalis Buttonweed Abutilon theophrasti Calico Aster Symphyotrichum lateriflorum California Poppy Eschscholzia californica Callery Pear Pyrus calleryana Calliopsis Coreopsis tinctoria Canada Garlic Allium canadense Canada Goldenrod Solidago canadensis Canada Onion Allium canadense Canada Thistle Cirsium arvense Canada Violet Viola canadensis Canada Wild Rye Elymus canadensis Canadian Anemone Anemone canadensis Canadian Black Snakeroot Sanicula canadensis Canadian Columbine Aquilegia canadensis Canadian Columbine Aquilegia canadensis Canadian Horseweed Conyza canadensis Canadian White Violet Viola canadensis Canadian Wild Ginger Asarum canadense Canna Lily Canna x generalis Cardinal Flower Lobelia cardinalis Carey's Sedge Carex careyana Carolina Buckthorn Rhamnus caroliniana Carolina Bushpea Thermopsis villosa Carolina Cranesbill Geranium carolinianum Carolina Geranium Geranium carolinianum Carolina Horsenettle Tsuga canadensis Carolina-Allspice Calycanthus floridus Carpenter's Square Scrophularia marilandica Carpetweed Mollugo verticillata Castor Bean Ricinus communis Cat Greenbrier Smilax glauca Catbrier Smilax glauca Catmint Nepeta x faassenii Catnip Nepeta cataria Catnip Giant Hyssop Agastache nepetoides Celandine Poppy Stylophorum diphyllum Chameleon Plant Houttuynia cordata Chameleon Spurge Euphorbia dulcis 'Chameleon' Checkered Lily Fritillaria meleagris Cherry Bells Campanula punctata Chestnut Castanea dentata Chicory Cichorium intybus Chinese chives Allium tuberosum Chinese Fountaingrass Cenchrus purpurascens Chinese Hibiscus Hibiscus rosa-sinensis Chinese Lespedeza Lespedeza cuneata Chinese silvergrass Miscanthus sinensis Chinese Wisteria Wisteria sinensis Chinese Yam Dioscorea polystachya Chinkapin Oak Quercus muehlenbergii Christmas Fern Polystichum acrostichoides Cinnamon Fern Osmundastrum cinnamomeum Cinnamon Vine Dioscorea polystachya Citronella Geranium Pelargonium citrosum Clammy Cockle Silene noctiflora Clammy Ground Cherry Physalis heterophylla Clammy Hedge-Hyssop Gratiola neglecta Clearweed Pilea pumila Cleavers Galium aparine Climbing Euonymus Euonymus fortunei Climbing False Buckwheat Fallopia scandens Climbing Milkweed Cynanchum laeve Climbing Nightshade Solanum dulcamara Climbing Prairie Rose Rosa setigera Climbing Wild Rose Rosa setigera Clustered Black Snakeroot Sanicula odorata Clustered Mountainmint Pycnanthemum muticum Coastal Sweetpepperbush Clethra alnifolia Colchicum Colchicum autumnale Coleus Coleus scutellarioides Coltsfoot Tussilago farfara Columbine Aquilegia canadensis Comfrey Symphytum officinale Common Agrimony Agrimonia gryposepala Common Arrowhead Sagittaria latifolia Common Blackberry Rubus allegheniensis Common Blue Violet Viola sororia Common Boneset Eupatorium perfoliatum Common Buckthorn Rhamnus cathartica Common Bugle Ajuga reptans Common Burdock Arctium minus Common Chickweed Stellaria media Common Cinquefoil Potentilla simplex Common Cocklebur Xanthium strumarium Common Dewberry Rubus flagellaris Common Dodder Cuscuta gronovii Common Duckweed Lemna minor Common Fleabane Erigeron philadelphicus Common Goldenrod Solidago canadensis Common Grape Hyacinth Muscari botryoides Common Grapefern Botrypus virginianus Common Greenbrier Smilax rotundifolia Common Groundsel Senecio vulgaris Common Hibiscus Hibiscus syriacus Common Horsemint Pycnanthemum tenuifolium Common Knotgrass Polygonum aviculare Common Lantana Lantana camara Common Lilac Syringa vulgaris Common Milkweed Asclepias syriaca Common Morning Glory Ipomoea purpurea Common Mullein Verbascum thapsus Common Pear Pyrus communis Common Peony Paeonia officinalis Common Peppergrass Lepidium virginicum Common Periwinkle Vinca minor Common Plantain Plantago major Common Poppy Papaver rhoeas Common Privet Ligustrum vulgare Common Purslane Portulaca oleracea Common Quickweed Galinsoga quadriradiata Common Ragweed Ambrosia artemisiifolia Common Rush Juncus effusus Common Sage Salvia officinalis Common Selfheal Prunella vulgaris Common Serviceberry Amelanchier arborea Common Sneezeweed Helenium autumnale Common Snowdrop Galanthus nivalis Common Speedwell Veronica officinalis Common St. John's Wort Hypericum perforatum Common Sunflower Helianthus annuus Common Teasel Dipsacus fullonum Common Three-Seeded Mercury Acalypha rhomboidea Common Velvet Grass Holcus lanatus Common Vetch Vicia sativa Common Witchhazel Hamamelis virginiana Common Wood Rush Luzula multiflora Common Wood Sedge Carex blanda Common Woodland Sedge Carex blanda Common Woodrush Luzula multiflora Common Woodsia Woodsia obtusa Common Wormwood Artemisia vulgaris Common Yarrow Achillea millefolium Compass Plant Silphium laciniatum Confederate Violet Viola sororia f. priceana Coontail Ceratophyllum demersum Copal Tree Ailanthus altissima Coral Bells Heuchera x 'Timeless Glow' Coral Honeysuckle Lonicera sempervirens Coralberry Symphoricarpos orbiculatus Corn Poppy Papaver rhoeas Corn Speedwell Veronica arvensis Cornelian Cherry Cornus mas Cornelian Cherry Dogwood Cornus mas Cornflower Centaurea cyanus Cosmos Cosmos bipinnatus Cottongrass Bulrush Scirpus cyperinus Couch Grass Elytrigia repens Cow Cress Lepidium campestre Cow Vetch Vicia cracca Cranefly Orchid Tipularia discolor Creeping Bentgrass Agrostis stolonifera Creeping Bush-Clover Lespedeza repens Creeping Buttercup Ranunculus repens Creeping Jenny Lysimachia nummularia Creeping Lespedeza Lespedeza repens Creeping Myrtle Vinca minor Creeping Phlox Phlox subulata Creeping Spikerush Eleocharis palustris Creeping Yellow Cress Rorippa sylvestris Crested Sedge Carex cristatella Crimson Clover Trifolium incarnatum Crinkleroot Cardamine diphylla Crocosmia Crocosmia masoniorum Crooked Aster Symphyotrichum prenanthoides Crow Garlic Allium vineale Crowdipper Pinellia ternata Crownvetch Securigera varia Cucumber Tree Magnolia acuminata Cudweed Sagewort Artemisia ludoviciana Culver's Root Veronicastrum virginicum Cup Plant Silphium perfoliatum Curly Dock Rumex crispus Curlytop Knotweed Persicaria lapathifolia Cut-Leaved Grape Fern Sceptridium dissectum f. dissectum Cut-Leaved Teasel Dipsacus laciniatus Cutleaf Coneflower Rudbeckia laciniata Cutleaf Grapefern Sceptridium dissectum f. dissectum Cutleaf Toothwort Cardamine concatenata Cypress Spurge Euphorbia cyparissias Daffodil Narcissus pseudonarcissus Daisy Fleabane Erigeron strigosus Daisy Fleabane Erigeron annuus Dame's Rocket Hesperis matronalis Dandelion Taraxacum officinale Dark Green Bulrush Scirpus atrovirens David's spurge Euphorbia davidii Dawn Redwood Metasequoia glyptostroboides Deadly Nightshade Smilax tamnoides Deam's Mercury Acalypha deamii Deam's threeseed mercury Acalypha deamii Deertongue Dichanthelium clandestinum Delta Arrowhead Sagittaria platyphylla Deptford Pink Dianthus armeria Desert False Indigo Amorpha fruticosa Devil's Beggarticks Bidens frondosa Dillen's Tick Trefoil Desmodium glabellum Ditch Lily Hemerocallis fulva Ditch Stonecrop Penthorum sedoides Diverse-Leaved Pondweed Potamogeton diversifolius Dixie Iris Iris hexagona Dogbane Apocynum cannabinum Doll's Eyes Actaea pachypoda Doorweed Polygonum aviculare Dotted Beebalm Monarda punctata Dotted Hawthorn Crataegus punctata Dotted Smartweed Persicaria punctata Dotted St. John's Wort Echinacea punctatum Double Wood Anemone Anemone nemorosa Downy Agrimony Agrimonia pubescens Downy Pagoda-Plant Blephilia ciliata Downy Serviceberry Amelanchier arborea Downy Skullcap Scutellaria incana Downy Wild Rye Elymus villosus Downy Wood Mint Blephilia ciliata Downy Yellow False Foxglove Aureolaria virginica Downy Yellow Violet Viola pubescens Dragon-Tree Dracaena draco Drooping Star of Bethlehem Ornithogalum nutans Dropwort Filipendula vulgaris Duck potato Sagittaria latifolia Dullleaf indigo Amorpha fruticosa Dutch Hyacinth Hyacinthus orientalis Dutchman's Breeches Dicentra cucullaria Dutchman's Pipe Aristolochia tomentosa Dwarf Crested Iris Iris cristata Dwarf Flowering Almond Prunus glandulosa Dwarf Fothergilla Fothergilla gardenii Dwarf Joe-Pye Weed Eutrochium dubium 'Little Joe' Dwarf Larkspur Delphinium tricorne Dwarf Snapdragon Chaenorhinum minus Dwarf St. John's Wort Hypericum mutilum Early Meadow Rue Thalictrum dioicum Early Saxifrage Micranthes virginiensis Early Whitlow Grass Draba verna Early Wildrye Elymus macgregorii Early Winter Cress Barbarea verna Early Yellowrocket Barbarea verna Eastern Bluestar Amsonia tabernaemontana Eastern Columbine Aquilegia canadensis Eastern Columbine Aquilegia canadensis Eastern Cottonwood Populus deltoides Eastern Daisy Fleabane Erigeron annuus Eastern Hemlock Tsuga canadensis Eastern Red Cedar Juniperus virginiana Eastern Red Columbine Aquilegia canadensis Eastern Red Columbine Aquilegia canadensis Eastern Redbud Cercis canadensis Eastern Smooth Beardtongue Penstemon laevigatus Eastern Star Sedge Carex radiata Eastern Sweetshrub Calycanthus floridus Eastern Wahoo Euonymus atropurpureus Eastern White Pine Pinus strobus Eastern Willow-Herb Epilobium coloratum Ebony Spleenwort Asplenium platyneuron Elderberry Sambucus nigra ssp. canadensis Elephant Ears Alocasia macrorrhizos Elephant's Foot Elephantopus carolinianus Elmleaf Goldenrod Solidago ulmifolia Empress Tree Paulownia tomentosa English Bluebell Hyacinthoides non-scripta English Ivy Hedera helix English Lavender Lavandula angustifolia English Plantain Plantago lanceolata English Thyme Thymus vulgaris English Yew Taxus baccata Eurasian Annual Grass Setaria pumila European Corn Salad Valerianella locusta European Crab Apple Malus sylvestris European Cranberrybush Viburnum Viburnum opulus var. opulus European Field Pansy Viola arvensis European Lily of the Valley Convallaria majalis European Mouse-Ear Chickweed Cerastium pumilum European Spindle Euonymus europaeus European thimbleweed Anemone nemorosa Evening Primrose Oenothera biennis Everlasting Pea Lathyrus latifolius Fall Crocus Colchicum autumnale Fall Panicgrass Panicum dichotomiflorum Fall Phlox Phlox paniculata False Aloe Manfreda virginica False Baby's Breath Galium mollugo False Daisy Eclipta prostrata False Dandelion Hypochaeris radicata False Forget-Me-Not Brunnera macrophylla False Indigo-Bush Amorpha fruticosa False Mermaid Floerkea proserpinacoides False Nettle Boehmeria cylindrica False Nutsedge Cyperus strigosus False Pimpernel Lindernia dubia False Rue Anemone Enemion biternatum False Solomon's Seal Maianthemum racemosum False Sunflower Heliopsis helianthoides Fan Clubmoss Diphasiastrum digitatum feathery false lily of the valley Maianthemum racemosa Fernleaf Yellow False Foxglove Aureolaria pedicularia Feverfew Tanacetum parthenium Few-Flowered Tick Trefoil Desmodium pauciflorum Fibrousroot Sedge Carex communis Field Beadgrass Paspalum laeve Field Bindweed Convolvulus arvensis Field Garlic Allium vineale Field Horsetail Equisetum arvense Field Mustard Brassica rapa Field Paspalum Paspalum laeve Field Peppergrass Lepidium campestre Field Pepperweed Lepidium campestre Field Poppy Papaver rhoeas Field Pumpkin Cucurbita pepo Field Sowthistle Sonchus arvensis Field Thistle Cirsium discolor Fig Buttercup Ficaria verna Finger Coreopsis Coreopsis palmata Fire Pink Silene virginica Fireweed Erechtites hieraciifolius Fishtail Swordfern Nephrolepis falcata Flat pea Lathyrus sylvestris Flat-Topped Goldenrod Euthamia graminifolia Flatweed Hypochaeris radicata Fleming's Crown Jewels Hibiscus x moscheutos Florida Paspalum Paspalum floridanum Flower-of-an-Hour Hibiscus trionum Flowering Almond Prunus glandulosa Flowering Dogwood Cornus florida Flowering Quince Chaenomeles speciosa Fogfruit Phyla lanceolata Forest Skullcap Scutellaria ovata Forest Sunflower Helianthus decapetalus Forked Chickweed Paronychia fastigiata Forsythia Forsythia x intermedia Fortune's Holly Fern Cyrtomium fortunei Foster Holly Ilex x attenuata Fowl Manna Grass Glyceria striata Fox Grape Vitis vulpina Foxglove Beardtongue Penstemon digitalis Foxtail Fern Asparagus densiflorus Fragile Fern Cystopteris protrusa Fragrant Giant Hyssop Agastache foeniculum Fragrant Sumac Rhus aromatica Fragrant Water-Lily Nymphaea odorata Frank's Sedge Carex frankii Franklin Tree Franklinia alatamaha Freckle Face Hypoestes phyllostachya French-Grass Orbexilum onobrychis Fringed Sedge Carex crinita Fritillary Fritillaria verticillata Frost Aster Symphyotrichum pilosum Frost Grape Vitis vulpina Frosted Hawthorn Crataegus pruinosa Frostweed Aster Symphyotrichum pilosum Fuller's Teasel Dipsacus fullonum Galinsoga Galinsoga parviflora Gallant Soldier Galinsoga parviflora Garden Coreopsis Coreopsis tinctoria Garden Hyacinth Hyacinthus orientalis Garden Mum Chrysanthemum x morifolium Garden Pansy Viola x wittrockiana Garden Phlox Phlox paniculata 'Jeana' Garden Tomato Solanum lycopersicum Garden Vetch Vicia sativa Garden Yellowrocket Barbarea vulgaris Garlic Chives Allium tuberosum Garlic Mustard Alliaria petiolata Garlic Pennycress Mummenhoffia alliacea Germander Speedwell Veronica chamaedrys Giant Bur-Reed Sparganium eurycarpum Giant Cane Arundinaria gigantea Giant Foxtail Setaria faberi Giant Mullein Verbascum thapsus Giant Ragweed Ambrosia trifida Giant Snowdrop Galanthus elwesii Giant Solomon's Seal Polygonatum biflorum var. commutatum Giant Sunflower Helianthus giganteus Giant Taro Alocasia macrorrhizos Giant Wood Fern Dryopteris goldieana Ginkgo Ginkgo biloba Glade Fern Diplazium pycnocarpon Glade Mallow Napaea dioica Glaucous Greenbrier Smilax glauca Globe Flatsedge Cyperus echinatus Glory-of-the-Snow Chionodoxa luciliae Glossy Abelia Abelia x grandiflora Goatsbeard Aruncus dioicus Gold Moss Stonecrop Sedum sarmentosum Golden Alexanders Zizia aurea Golden Globes Loosestrife Lysimachia congestiflora 'Outback Sunset' Golden Oregano Origanum vulgare var. 'Aureum' Golden Ragwort Packera aurea Golden Sedge Carex aurea Golden Tickseed Coreopsis tinctoria Goldenseal Hydrastis canadensis Goosegrass Eleusine indica Gooseneck Loosestrife Lysimachia clethroides Grass-Leaved Goldenrod Euthamia graminifolia Graveyard Moss Sedum sarmentosum Gray Dogwood Cornus racemosa Gray Goldenrod Solidago nemoralis Gray Sagewort Artemisia ludoviciana Gray's Sedge Carex grayi Gray-Headed Coneflower Ratibida pinnata Grease Grass Tridens flavus Great Blue Lobelia Lobelia siphilitica Great Ragweed Ambrosia trifida Great Yellow Woodsorrel Oxalis grandis Greater Periwinkle Vinca major Greater Poverty Rush Juncus anthelatus Greater Straw Sedge Carex normalis Grecian Windflower Anemone blanda Greek Thimbleweed Anemone blanda Greek Valerian Polemonium reptans Greek Windflower Anemone blanda Green Ash Fraxinus pennsylvanica Green Bulrush Scirpus atrovirens Green Dragon Arisaema dracontium Green Pigweed Amaranthus hybridu Green Pigweed Amaranthus hybridus Green-Headed Coneflower Rudbeckia laciniata Groovebur Agrimonia pubescens Ground Cedar Diphasiastrum digitatum Ground Ivy Glechoma hederacea Groundnut Apios americana Guinea Hen Flower Fritillaria meleagris Guyandotte Beauty Synandra hispidula Hackberry Celtis occidentalis Hairy Beardtongue Penstemon hirsutus Hairy Bittercress Cardamine hirsuta Hairy Brome Bromus pubescens Hairy Buttercup Ranunculus sardous Hairy Cat's Ear Hypochaeris radicata Hairy Crabgrass Digitaria sanguinalis Hairy False Goldenaster Heterotheca villosa Hairy Forked Nailwort Paronychia fastigiata Hairy Mountain Mint Pycnanthemum verticillatum Hairy Pagoda-Plant Blephilia hirsuta Hairy Sweet Cicely Osmorhiza claytonii Hairy Vetch Vicia villosa Hairy Wildrye Elymus villosus Hairy Wood Mint Blephilia hirsuta Hairy Wood Sedge Carex hirtifolia Hairy-Leaved Sedge Carex hirsutella Hairy-Seed Beadgrass Paspalum pubiflorum Hairyseed Paspalum Paspalum pubiflorum Halberd-Leaved Rose Mallow Hibiscus laevis Harbinger-of-Spring Erigenia bulbosa Hard Maple Acer nigram Hard-Stemmed Bulrush Schoenoplectus acutus Harvestlice Agrimonia parviflora Harvestlice Agrimony Agrimonia parviflora Heal-All Prunella vulgaris Heart-Leaved Aster Symphyotrichum cordifolium Heartleaf Foamflower Tiarella cordifolia Heartleaf Hedgenettle Stachys cordata Heartleaf Skullcap Scutellaria ovata Hedge Bindweed Calystegia sepium Heliotrope Heliotropium arborescens Hellebores Helleborus orientalis Hemp Dogbane Apocynum cannabinum Henbit Lamium amplexicaule Hens and Chicks Sempervivum tectorum Hepatica Anemone acutiloba Highbush Cranberry Viburnum opulus var. opulus Hoary Bittercress Cardamine hirsuta Hoary Ticktrefoil Desmodium canescens Hog Peanut Amphicarpaea bracteata Hollow Joe-Pye Weed Eutrochium fistulosum Hollyhock Alcea rosea Honewort Cryptotaenia canadensis Honeylocust Gleditsia triacanthos Honeyvine Cynanchum laeve Hooked Crowfoot Ranunculus recurvatus Hop Hornbeam Ostrya virginiana Hophornbeam Copperleaf Acalypha ostryifolia Hornbeam Mercury Acalypha ostryifolia Hornbean Copperleaf Acalypha ostryifolia Horse Chestnut Aesculus hippocastanum Horsebalm Collinsonia canadensis Horsemint Monarda punctata Horsenettle Solanum carolinense Horseweed Conyza canadensis Horseweed Ambrosia trifida Hubricht's Bluestar Amsonia hubrichtii Hyacinth Hyacinthus orientalis Hyacinth Bean Lablab purpureus Hybrid Cattail Typha x glauca Illinois Bundleflower Desmanthus illinoensis Impatiens Impatiens walleriana Indian Blanket Gaillardia pulchella Indian Hemp Apocynum cannabinum Indian mallow Abutilon theophrasti Indian Pipe Monotropa uniflora Indian Strawberry Duchesnea indica Indian Tobacco Lobelia inflata Indian Woodoats Chasmanthium latifolium Indiangrass Sorghastrum nutans Inkberry Ilex glabra Inland Sea Oats Chasmanthium latifolium Ironweed Vernonia gigantea Ironwood Carpinus caroliniana Italian Arum Arum italicum Italian Lords-and-Ladies Arum italicum Italian Rye Grass Lolium multiflorum Ivy-Leaved Morning Glory Ipomoea hederacea Ivy-Leaved Speedwell Veronica hederifolia Ivy-Leaved Toadflax Cymbalaria muralis Jack-in-the-Pulpit Arisaema triphyllum Jacob's Ladder Polemonium reptans James' Sedge Carex jamesii Japanese Anemone Anemone hupehensis Japanese Barberry Berberis thunbergii Japanese Brome Bromus japonicus Japanese Chaff Flower Achyranthes japonica Japanese Clover Kummerowia striata Japanese Hedge Parsley Torilis japonica Japanese Honeysuckle Lonicera japonica Japanese Knotweed Fallopia japonica Japanese Knotweed 'Crimson Beautry' Fallopia japonica 'Crimson Beauty' Japanese Painted Fern Athyrium niponicum var. pictum Japanese Quince Chaenomeles japonica Japanese Silver Grass Miscanthus sinensis ''Zebrinus'' Japanese Spiraea Spiraea japonica Japanese Stiltgrass Microstegium vimineum Japanese Thimbleweed Anemone hupehensis Japanese Tree Lilac Syringa reticulata Japanese Yew Taxus cuspidata Jerusalem Artichoke Helianthus tuberosus Jimsonweed Datura stramonium Johnsongrass Sorghum halepense Jointed Rush Juncus articulatus Jointleaf Rush Juncus articulatus Judd Viburnum Viburnum x juddii Jumpseed Persicaria virginiana Kenilworth ivy Cymbalaria muralis Kentucky Bluegrass Poa pratensis Kentucky Coffeetree Gymnocladus dioicus Kidney-Leaved Crowfoot Ranunculus abortivus King Solomon's Seal Polygonatum biflorum var. commutatum Kingnut Hickory Carya laciniosa Knob-Styled Dogwood Cornus amomum Knock Out Rose Rosa 'Radrazz' Korean Clover Kummerowia stipulacea Lacerate Blazing Star Liatris aspera Lady Fern Athyrium filix-femina Lady's Bedstraw Galium verum Lady's Thumb Persicaria maculosa Lake Sedge Scirpus lacustris Lamb's Ear Stachys byzantina Lamb's Lettuce Valerianella radiata Lamb's Quarters Chenopodium album Lanceleaf Coreopsis Coreopsis lanceolata Lanceleaf Scurfpea Orbexilum onobrychis Laney's Hickory Carya x laneyi Large Houstonia Houstonia purpurea Large-Flowered Bellwort Uvularia grandiflora Large-Flowered Trillium Trillium grandiflorum Large-Flowered Valerian Valeriana pauciflora Large-Fruited Black Snakeroot Sanicula trifoliata Large-Seeded Copperleaf Acalypha deamii Largebract Ticktrefoil Desmodium cuspidatum Largeleaf Waterleaf Hydrophyllum macrophyllum Largeleaf Wild Indigo Baptisia lactea Late Eupatorium Eupatorium serotinum Late Thoroughwort Eupatorium serotinum Late-Flowering Thoroughwort Eupatorium serotinum Lavender Hyssop Agastache foeniculum Lead Plant Amorpha canescens Leatherwood Dirca palustris Lemon Balm Melissa officinalis Lemon Beebalm Monarda citriodora Lemon Daylily Hemerocallis lilioasphodelus Lemongrass Cymbopogon citratus Lenten Rose Helleborus orientalis Lesser Burdock Arctium minus Lesser Burdock Arctium minus Lesser Celandine Ficaria verna Lesser Hop Trefoil Trifolium dubium Lesser Ladies' Tresses Spiranthes ovalis Lesser Quickweed Galinsoga parviflora Leucospora Leucospora multifida Lily of the Valley Convallaria majalis Lily-Leaved Twayblade Liparis liliifolia Lilyturf Liriope muscari Limestone Meadow Sedge Carex granularis Little Bluestem Schizachyrium scoparium Littlebell Ipomoea triloba Locust Leaf Fern Osmunda regalis Locust Weed Chamaecrista fasciculata Long-Awned Wood Grass Brachyelytrum erectum Long-Bracted Tickseed Sunflower Bidens polylepis Long-Bristled Smartweed Persicaria longiseta Longleaf Ground Cherry Physalis longifolia Longleaf Pondweed Potamogeton nodosus Longstalk Tickseed Coreopsis lanceolata Lopseed Phryma leptostachya Louisiana Sagewort Artemisia ludoviciana Love-in-a-Mist Nigella damascena Low Hop Clover Trifolium campestre Lowland Bladderfern Cystopteris protrusa Lungwort Pulmonaria officinalis Lurid Sedge Carex lurida Lyreleaf Sage Salvia lyrata Macho Fern Nephrolepis biserrata Mad-Dog Skullcap Scutellaria lateriflora Maidenhair Fern Adiantum pedatum Maidenhair Tree Ginkgo biloba Male Fern Dryopteris filix-mas Mapleleaf Viburnum Viburnum acerifolium Marginal Wood Fern Dryopteris marginalis Marigold Tagetes minuta Marsh Fern Thelypteris palustris Marsh Purslane Ludwigia palustris Marsh Seedbox Ludwigia palustris Mayapple Podophyllum peltatum Meadow Blazing Star Liatris ligulistylis Meadow Fescue Schedonorus pratensis Meadow Foxtail Alopecurus pratensis Meadow Onion Allium canadense Meadow Spikemoss Selaginella apoda Mexican Sunflower Tithonia rotundifolia Miami Mist Phacelia purshii Mild Waterpepper Persicaria hydropiperoides Milky Wild Indigo Baptisia lactea Mintleaf beebalm Monarda fistulosa Mistflower Conoclinium coelestinum Mock Strawberry Duchesnea indica Moneywort Lysimachia nummularia Moonseed Menispermum canadense Moss Phlox Phlox subulata Moth Mullein Verbascum blattaria Mountain Laurel Kalmia latifolia Mouse-Ear Chickweed Cerastium vulgatum Mugwort Artemisia vulgaris Mullein Foxglove Dasistoma macrophylla Multiflora Rose Rosa multiflora Musclewood Carpinus caroliniana Naked Ladies Lycoris squamigera Naked-Flowered Tick Trefoil Desmodium nudiflorum Narrow-Leaved Everlasting Pea Lathyrus sylvestris Narrow-Leaved Hawksbeard Crepis tectorum Narrow-Leaved Vetch Vicia sativa Narrowleaf Angelon Angelonia angustifolia 'Archangel' Narrowleaf Cattail Typha angustifolia Narrowleaf Meadowsweet Spiraea alba Narrowleaf Mountainmint Pycnanthemum tenuifolium Narrowleaf Paleseed Leucospora multifida Narrowleaf Plantain Plantago lanceolata Netted Iris Iris reticulata New England Aster Symphyotrichum novae-angliae New Guinea Impatiens Impatiens hawkeri Night-Flowering Catchfly Silene noctiflora Nimblewill Muhlenbergia schreberi Ninebark Physocarpus opulifolius Ninebark Summer Wine Physocarpus opulifolius 'Summer Wine' Nipplewort Lapsana communis Nodding Bulrush Scirpus pendulus Nodding Bur-Marigold Bidens cernua Nodding Fescue Festuca subverticillata Nodding Foxtail Setaria faberi Nodding Ladies' Tresses Spiranthes cernua Nodding Onion Allium cernuum Nodding Rattlesnakeroot Prenanthes crepidinea Nodding Sedge Carex gynandra Nodding Spurge Euphorbia nutans Northeastern Beardtongue Penstemon hirsutus Northern Water Plantain Alisma triviale Northern Bayberry Morella pensylvanica Northern Blue Flag Iris versicolor Northern Bush Honeysuckle Diervilla lonicera Northern Catalpa Catalpa speciosa Northern Corn Salad Valerianella umbilicata Northern Dewberry Rubus flagellaris Northern Maidenhair Fern Adiantum pedatum Northern Plains Blazing Star Liatris ligulistylis Northern Red Oak Quercus rubra Northern White Cedar Thuja occidentalis Northern Wild Senna Senna hebecarpa Norway Spruce Picea abies Nottoway Valley Brome Bromus nottowayanus Oakleaf Hydrangea Hydrangea quercifolia Obe-Wan-Conobea Leucospora multifida Obedient Plant Physostegia virginiana October Ladies' Tresses Spiranthes ovalis Ohio Buckeye Aesculus glabra Ohio Spiderwort Tradescantia ohiensis Onion Chive Allium schoenoprasum Onion Grass Allium vineale Orange Daylily Hemerocallis fulva Orange Mint Mentha aquatica var. citrata Orange Touch-Me-Not Impatiens capensis Orchard Grass Dactylis glomerata Oregano Origanum vulgare Oriental Bittersweet Celastrus orbiculatus Oriental Lady's Thumb Persicaria longiseta Ornamental Onion Allium albopilosum Osage-Orange Maclura pomifera Ostrich Fern Matteuccia struthiopteris Oswego Tea Monarda didyma Outback Sunset Lysimachia congestiflora 'Outback Sunset' Oval Ladies' Tresses Spiranthes ovalis Oval-Headed Sedge Carex cephalophora Oval-leaf knotweed Polygonum aviculare Ovate Spikerush Eleocharis ovata Overcup Oak Quercus lyrata Ox-Eye Daisy Leucanthemum vulgare Ozark Tickseed Sunflower Bidens polylepis Pale Jewelweed Impatiens pallida Pale Smartweed Persicaria lapathifolia Pale-Spiked Lobelia Lobelia spicata Palespike Lobelia Lobelia spicata Palm Sedge Carex muskingumensis Panicgrass Panicum capillare Panicled Aster Symphyotrichum lanceolatum Panicled Tick Trefoil Desmodium paniculatum Panicledleaf Ticktrefoil Desmodium paniculatum Paperbark Maple Acer griseum Parasol Whitetop Doellingeria umbellata Parsley Petroselinum crispum Parsnip Pastinaca sativa Partridge Pea Chamaecrista fasciculata Pasture Rose Rosa carolina Pasture Spikesedge Kyllinga gracillima Path Rush Juncus tenuis Pawpaw Asimina triloba Pecan Carya illinoinensis Pennsylvania Bitter Cress Cardamine pensylvanica Pennsylvania Sedge Carex pensylvanica Pennsylvania Smartweed Persicaria pensylvanica Pepper and Salt Erigenia bulbosa Peppermint Mentha x piperita Peppermint Surprise Lily Lycoris incarnata Perennial Sowthistle Sonchus arvensis Perfoliate Bellwort Uvularia perfoliata Perfoliate Pennycress Microthlaspi perfoliatum Perilla Mint Perilla frutescens Persian Speedwell Veronica persica Persimmon Diospyros virginiana Petticoat-climber Eragrostis spectabilis Pheasant's Eye Narcissus poeticus Philadelphia Fleabane Erigeron philadelphicus Pickerelweed Pontederia cordata Pignut Hickory Carya glabra Pilewort Erechtites hieraciifolius Pin Oak Quercus palustris Pineapple Sage Salvia elegans Pineland Threeseed Mercury Acalypha ostryifolia Pink Evening Primrose Oenothera speciosa Pink Ivy-Leaved Speedwell Veronica sublobata Pink Lily of the Valley Convallaria majalis var. 'Rosea' Pink Redstem Ammannia latifolia Pinkweed Persicaria pensylvanica Pipevine Aristolochia tomentosa Pitch Pine Pinus rigida Plains Coreopsis Coreopsis tinctoria Plantain-Leaved Pussytoes Antennaria plantaginifolia Plantainleaf Sedge Carex plantaginea Pointed Broom Sedge Carex scoparia Pointed-Leaved Tick Trefoil Desmodium glutinosum Pointedleaf Ticktrefoil Desmodium glutinosum Poison Hemlock Conium maculatum Poison Ivy Toxicodendron radicans Pokeweed Phytolacca americana Potatobean Apios americana Prairie Cordgrass Sporobolus michauxianus Prairie Coreopsis Coreopsis palmata Prairie Dock Silphium terebinthinaceum Prairie Dropseed Sporobolus heterolepis Prairie Fleabane Erigeron strigosus Prairie Milkweed Asclepias sullivantii Prairie Mimosa Desmanthus illinoensis Prairie Rosinweed Silphium terebinthinaceum Prairie Sedge Carex bicknellii Prairie Trillium Trillium recurvatum Prickly Ash Zanthoxylum americanum Prickly Gooseberry Ribes cynosbati Prickly Lettuce Lactuca serriola Prickly Mallow Sida spinosa Prickly Sedge Carex stipata Prickly Sida Sida spinosa Prickly Sowthistle Sonchus asper Pride of Ohio Primula meadia Princess Tree Paulownia tomentosa Privet Ligustrum vulgare Prostrate Sandmat Euphorbia prostrata Prostrate Spurge Euphorbia prostrata Purple Bergamot Monarda media Purple Cliffbrake Pellaea atropurpurea Purple Coneflower Echinacea purpurea Purple Cress Cardamine douglassii Purple Dead-Nettle Lamium purpureum Purple False Foxglove Agalinis purpurea Purple Foxglove Digitalis purpurea Purple Giant Hyssop Agastache scrophulariifolia Purple Loosestrife Lythrum salicaria Purple Love Grass Eragrostis spectabilis Purple Passionflower Passiflora incarnata Purple Perilla Perilla frutescens var. crispa Purple Rocket Iodanthus pinnatifidus Purple Twayblade Liparis liliifolia Purple-Leaf Willowherb Epilobium coloratum Purple-Node Joe-Pye Weed Eutrochium purpureum Purple-Stem Beggarticks Bidens connata Purpletop Tridens flavus Purpletop Tridens Tridens flavus Purpletop Vervain Verbena bonariensis Purslane Speedwell Veronica peregrina Pussy Willow Salix discolor Pussytoes Antennaria plantaginifolia Quackgrass Elymus repens Queen Anne's Lace Daucus carota Queen of the Prairie Filipendula rubra Queen-of-the-Prairie Filipendula rubra Quickweed Galinsoga parviflora Ragged Fringed Orchid Platanthera lacera Ramps Allium tricoccum Ramsons Allium ursinum Rattlebox Ludwigia alternifolia Rattlesnake Fern Botrypus virginianus Rattlesnake Grape Fern Botrypus virginianus Rattlesnake Master Eryngium yuccifolium Red Barrenwort Epimedium x rubrum Red Bergamot Monarda didyma Red Buckeye Aesculus pavia Red Cedar Juniperus virginiana Red Clover Trifolium pratense Red Elm Ulmus rubra Red Epimedium Epimedium x rubrum Red Maple Acer rubrum Red Mulberry Morus rubra Red Oak Quercus rubra Red Pine Pinus resinosa Red Snowberry Symphoricarpos orbiculatus Red Turtlehead Chelone obliqua Red Twig Dogwood Cornus sericea Redbud Cercis canadensis Redosier Dogwood Cornus sericea Redtop Agrostis gigantea Reed Canary Grass Phalaris arundinacea Reflexed Sedge Carex retroflexa Resurrection Lily Lycoris squamigera Reticulated Iris Iris reticulata Rhombic Copperleaf Acalypha rhomboidea Rice Cutgrass Leersia oryzoides Richweed Collinsonia canadensis Riddell's Goldenrod Solidago riddellii River Birch Betula nigra River Bulrush Bolboschoenus fluviatilis Riverbank Grape Vitis riparia Riverbank Wildrye Elymus riparius Roadside Agrimony Agrimonia pubescens Rock Buttercup Ranunculus micranthus Rocky Mountain Blazing Star Liatris ligulistylis Roman Woormwood Ambrosia artemisiifolia Rose Campion Silene coronaria Rose of Sharon Hibiscus syriacus Rose-of-Sharon Hibiscus syriacus Rosemary Salvia rosmarinus Rosepink Sabatia angularis Rosy Sedge Carex rosea Rough Barnyardgrass Echinochloa muricata Rough Blazing Star Liatris aspera Rough Bluegrass Poa trivialis Rough Cinquefoil Potentilla norvegica Rough Horsetail Equisetum hyemale Rough-Fruited Cinquefoil Potentilla recta Rough-Pod Copperleaf Acalypha ostryifolia Roughleaf Dogwood Cornus drummondii Round Wild Indigo Baptisia sphaerocarpa Round-Headed Bush Clover Lespedeza capitata Roundhead Lespedeza Lespedeza capitata Roundleaf Greenbrier Smilax rotundifolia Roundleaf Ragwort Packera obovata Royal Catchfly Silene regia Royal Fern Osmunda regalis Royal Paulownia Paulownia tomentosa Rue Anemone Thalictrum thalictroides Rufous Bulrush Scirpus pendulus Rugel's Plantain Plantago rugelii Running Buffalo Clover Trifolium stoloniferum Running Groundsel Packera obovata Russian Olive Elaeagnus angustifolia Rusty Blackhaw Viburnum rufidulum Safflower Carthamus tinctorius Sago Pondweed Stuckenia pectinata Sallow Sedge Carex lurida Sandbar Willow Salix exigua Sandvine Cynanchum laeve Sassafras Sassafras albidum Saucer Magnolia Magnolia x soulangeana Savannah False Pimpernel Lindernia grandiflora Sawtooth Oak Quercus acutissima Sawtooth Sunflower Helianthus grosseserratus Scarlet Beebalm Monarda didyma Scarlet Oak Quercus coccinea Scarlet Pimpernel Anagallis arvensis Scotch Pine Pinus sylvestris Scouring Rush Equisetum hyemale Scouringrush Horsetail Equisetum hyemale Scrub Pine Pinus virginiana Seersucker Sedge Carex plantaginea Self-Heal Prunella vulgaris Sensitive Fern Onoclea sensibilis Sessile Blazing Star Liatris spicata Sessile Trillium Trillium sessile Shagbark Hickory Carya ovata Sharp-lobed Hepatica Anemone acutiloba Sharpwing Monkeyflower Mimulus alatus Shasta Daisy Leucanthemum x superbum Shellbark Hickory Carya laciniosa Shepherd's Purse Capsella bursa-pastoris Shingle Oak Quercus imbricaria Shining Bedstraw Galium concinnum Shining Sumac Rhus copallinum Shooting Star Primula meadia Short Ragweed Ambrosia artemisiifolia Short's Aster Symphyotrichum shortii Short's Sedge Carex shortiana Showy Goldenrod Solidago speciosa Showy Tick Trefoil Desmodium canadense Shrubby St. John's Wort Hypericum prolificum Shumard Red Oak Quercus shumardii Siberian Elm Ulmus pumila Siberian Iris Iris sibirica Siberian Squill Scilla siberica Sicilian Honey Garlic Nectaroscordum siculum Sideoats Grama Bouteloua curtipendula Siebold Viburnum Viburnum sieboldii Silky Dogwood Cornus amomum Silky Wild Rye Elymus villosus Silver Bells Ornithogalum nutans Silver Maple Acer saccharinum Silvery Glade Fern Deparia acrostichoides Skunk Cabbage Symplocarpus foetidus Slender Mountainmint Pycnanthemum tenuifolium Slender Muhly Muhlenbergia tenuiflora Slender Pondweed Potamogeton pusillus Slim Amaranth Amaranthus hybridus Slimflower Muhly Muhlenbergia tenuiflora Slippery Elm Ulmus rubra Small Carpetgrass Arthraxon hispidus Small White Aster Symphyotrichum racemosum Small White Morning Glory Ipomoea lacunosa Small-Flowered Agrimony Agrimonia parviflora Small-Flowered Crowfoot Ranunculus abortivus Small-Flowered Leafcup Polymnia canadensis Smartweed Persicaria amphibia Smooth Amaranth Amaranthus hybridu Smooth Beardtongue Penstemon laevigatus Smooth Blue Aster Symphyotrichum laeve Smooth Brome Bromus inermis Smooth Crabgrass Digitaria ischaemum Smooth Forked Nailwort Paronychia canadensis Smooth Ground Cherry Physalis subglabrata Smooth Hedgenettle Stachys tenuifolia Smooth Hydrangea Hydrangea arborescens 'Annabelle' Smooth Milkweed Asclepias sullivantii Smooth Rock Cress Boechera laevigata Smooth Solomon's Seal Polygonatum biflorum Smooth Sumac Rhus glabra Smooth Wild Petunia Ruellia strepens Smooth Yellow Violet Viola pubescens var. scabriuscula Smoother Sweet Cicely Osmorhiza longistylis Snapdragon Antirrhinum majus Snow Trillium Trillium nivale Soapwort Saponaria officinalis Soft Fox Sedge Carex conjuncta Soft Maple Acer saccharinum Soft Rush Juncus effusus Soft-Stemmed Bulrush Schoenoplectus tabernaemontani Softstem Bulrush Schoenoplectus tabernaemontani Solomon's Plume Maianthemum racemosa Sorghum Sorghum bicolor Sour Gum Nyssa sylvatica Southern Adder's-Tongue Ophioglossum vulgatum Southern Adder's-Tongue Ophioglossum vulgatum Southern Agrimony Agrimonia parviflora Southern Blackhaw Viburnum rufidulum Southern Fragile Fern Cystopteris protrusa Southern Water Plantain Alisma subcordatum Southern Wild Senna Senna marilandica Spanish Bluebell Hyacinthoides hispanica Spanish Needles Bidens bipinnata Spearmint Mentha spicata Spicebush Lindera benzoin Spider Flower Cleome hybrid Spinulose Wood Fern Dryopteris carthusiana Spiny Sowthistle Sonchus asper Spotted Beebalm Monarda punctata Spotted Horse Mint Monarda punctata Spotted Jewelweed Impatiens capensis Spotted Joe-Pye Weed Eutrochium maculatum Spotted Knapweed Centaurea stoebe Spotted Sandmat Euphorbia maculata Spotted Spurge Euphorbia maculata Spotted St. John's Wort Hypericum punctatum Spotted Water Hemlock Cicuta maculata Spreading Sandmat Euphorbia humistrata Spring Avens Geum vernum Spring Beauty Claytonia virginica Spring Coralroot Corallorhiza wisteriana Spring Cress Cardamine bulbosa Spring Crocus Crocus vernus Spring Forget-Me-Not Myosotis verna Spring Snowflake Leucojum vernum Spring Sternbergia Sternbergia fischeriana Square-Pod Water-Primrose Ludwigia alternifolia Squarrose Sedge Carex squarrosa Squawroot Conopholis americana Squill Scilla siberica Squirrel Corn Dicentra canadensis Ssmooth Amaranth Amaranthus hybridus St. Anthony's Turnip Ranunculus bulbosus Stag's Garlic Allium vineale Staghorn Sumac Rhus typhina Star Chickweed Stellaria pubera Star Magnolia Magnolia stellata Star-of-Bethlehem Ornithogalum umbellatum Starry Campion Silene stellata Starry Magnolia Magnolia stellata Steeplebush Spiraea tomentosa Stickseed Hackelia virginiana Sticktight Hackelia virginiana Stiff Goldenrod Solidago rigida Stiff Tickseed Coreopsis palmata Stinging Nettle Urtica dioica Strawcolored Fatsedge Cyperus strigosus Strawstem Beggar-Ticks Bidens tripartita Stringy Stonecrop Sedum sarmentosum Striped Cream Violet Viola striata Striped Squill Puschkinia scilloides Sugar Maple Acer saccharum Sugar Maple Acer nigram Sullivant's Milkweed Asclepias sullivantii Sulphur Cinquefoil Potentilla recta Summer Grape Vitis aestivalis Summer Phlox Phlox paniculata Summer Snowflake Leucojum aestivum Summer Wine Physocarpus opulifolius 'Summer Wine' Summer Wine Ninebark Physocarpus opulifolius ''Summer Wine'' Summersweet clethra Clethra alnifolia Surprise Lily Lycoris squamigera Swamp Buttercup Ranunculus hispidus Swamp Dodder Cuscuta gronovii Swamp Milkweed Asclepias incarnata Swamp Rose Mallow Hibiscus moscheutos Swamp Smartweed Persicaria hydropiperoides Swamp Verbena Verbena hastata Swamp White Oak Quercus bicolor Swan's Sedge Carex swanii Sweet Alyssum Lobularia maritima Sweet Autumn Clematis Clematis terniflora Sweet Autumn Virginsbower Clematis terniflora Sweet Black-Eyed Susan Rudbeckia subtomentosa Sweet Goldenrod Solidago odora Sweet Joe-Pye Weed Eutrochium purpureum Sweet Mock Orange Philadelphus coronarius Sweet Pepperbush Clethra alnifolia Sweet Pignut Hickory Carya glabra Sweet Sagewort Artemisia annua Sweet Vernal Grass Anthoxanthum odoratum Sweet-amber Hypericum androsaemum Sweet-Scented Bedstraw Galium triflorum Sweet-Scented Water-Lily Nymphaea odorata Sweet-William Dianthus barbatus Sweetbay Magnolia virginiana Sweetbay Magnolia Magnolia virginiana Sweetflag Acorus americanus Sweetgum Liquidambar styraciflua Sweetleaf Stevia rebaudiana Switchgrass Panicum virgatum Sycamore Platanus occidentalis Synandra Synandra hispidula Tall Bellflower Campanulastrum americanum Tall Blazing Star Liatris aspera Tall Blue Lettuce Lactuca biennis Tall Boneset Eupatorium altissimum Tall Coreopsis Coreopsis tripteris Tall False Hawksbeard Youngia japonica Tall Fescue Festuca arundinacea Tall Goldenrod Solidago altissima Tall Hairy Agrimony Agrimonia gryposepala Tall Hairy Groovebur Agrimonia gryposepala Tall Ironweed Vernonia gigantea Tall Meadow Rue Thalictrum pubescens Tall Phlox Phlox paniculata Tall Rattlesnakeroot Prenanthes altissima Tall Sunflower Helianthus giganteus Tall Thimbleweed Anemone virginiana Tall Thoroughwort Eupatorium altissimum Tall White Lettuce Prenanthes altissima Tansy Tanacetum vulgare Tassel Fern Polystichum polyblepharum Tattoo Plant Eclipta prostrata Tawny Daylily Hemerocallis fulva Ten-Petal Sunflower Helianthus decapetalus Terrestrial Starwort Callitriche terrestris Texas Buckeye Aesculus glabra Thin-Leaved Coneflower Rudbeckia triloba Thin-Leaved Sunflower Helianthus decapetalus Thorny Locust Gleditsia triacanthos Threadleaf Bluestar Amsonia hubrichtii Threadleaf Coreopsis Coreopsis verticillata Three-Lobed Coneflower Rudbeckia triloba Thyme-Leaved Sandwort Arenaria serpyllifolia Thyme-Leaved Speedwell Veronica serpyllifolia Tickseed Sunflower Bidens aristosa Tiger Daylily Hemerocallis fulva Timothy Phleum pratense Timothy Grass Phleum pratense Toothache Tree Zanthoxylum americanum Toothcup Rotala ramosior Toothed Spurge Euphorbia davidii Toothed Wood Fern Dryopteris carthusiana Torrey's Rush Juncus torreyi Trailing Fuzzy-Bean Strophostyles helvola Trailing fuzzy-bean Strophostyles helvola Trailing Lespedeza Lespedeza repens Tree-of-Heaven Ailanthus altissima Trumpet Creeper Campsis radicans Trumpet Vine Campsis radicans Trumpetweed Eutrochium fistulosum Tufted Vetch Vicia cracca Tulip Poplar Liriodendron tulipifera Tulip Tree Liriodendron tulipifera Tumbleweed grass Panicum capillare Tussock Sedge Carex stricta Tutsan Hypericum androsaemum Twinleaf Jeffersonia diphylla Two-Flower Dwarf Dandelion Krigia biflora Two-Leaved Toothwort Cardamine diphylla Twoleaf Miterwort Mitella diphylla Umbrella Magnolia Magnolia tripetala Unknown Euonymus sp. Upland Bentgrass Agrostis perennans Upright Carrion Flower Smilax ecirrhata Van Houtte Spirea Spiraea vanhouttei Variegated Ribbon Grass Phalaris arundinacea 'Picta' Variegated Solomon's Seal Polygonatum odoratum 'Variegatum' Velvetleaf Abutilon theophrasti Venus' Looking Glass Triodanis perfoliata Venus' Pride Houstonia purpurea Violet Wood Sorrel Oxalis violacea Virgin's Bower Clematis virginiana Virginia Bluebells Mertensia virginica Virginia Brome Bromus nottowayanus Virginia Bugleweed Lycopus virginicus Virginia Buttonweed Diodia virginiana Virginia Creeper Parthenocissus quinquefolia Virginia Dutchman's Pipe Aristolochia serpentaria Virginia Dutchman's Pipe Aristolochia serpentaria Virginia Knotweed Persicaria virginiana Virginia Mountainmint Pycnanthemum virginianum Virginia Pepperweed Lepidium virginicum Virginia Pine Pinus virginiana Virginia Saxifrage Micranthes virginiensis Virginia Snakeroot Aristolochia serpentaria Virginia Spiderwort Tradescantia virginiana Virginia Springbeauty Claytonia virginica Virginia Stickseed Hackelia virginiana Virginia Sweetspire Itea virginica Virginia threeseed mercury Acalypha rhomboidea Virginia Wild Rye Elymus virginicus Virginia Willow Itea virginica Virginia Yellow Flax Linum virginianum Wahoo Euonymus atropurpureus Walking Fern Asplenium rhizophyllum Washington Hawthorn Crataegus phaenopyrum Water Bentgrass Agrostis gigantea Water Hemlock Cicuta maculata Water Hyacinth Eichhornia crassipes Water Maple Acer saccharinum Water Pimpernel Samolus valerandi Water Purslane Ludwigia palustris Water Smartweed Persicaria amphibia Water Willow Justicia americana Watercress Nasturtium officinale Waterthread Pondweed Potamogeton diversifolius Wax Begonia Begonia cucullata Western Yarrow Achillea millefolium White Angelonia Angelonia angustifolia 'Archangel' White Ash Fraxinus americana White Avens Geum canadense White Baneberry Actaea pachypoda White Bear Sedge Carex albursina White Campion Silene latifolia White Cattail Typha x glauca White Clover Trifolium repens White Cutgrass Leersia virginica White Dead-nettle Lamium album White Deadnettle Lamium album White Elm Ulmus americana White False Indigo Baptisia alba White Fawnlily Erythronium albidum White Fringetree Chionanthus virginicus White Gentian Gentiana alba White Lettuce Prenanthes alba White Meadowsweet Spiraea alba White Mulberry Morus alba White Oak Quercus alba White Panicle Aster Symphyotrichum lanceolatum White Pine Pinus strobus White rattlesnake-root Prenanthes alba White Sagebrush Artemisia ludoviciana White Snakeroot Ageratina altissima White Spruce Picea glauca White Sweet Clover Melilotus albus White Trout Lily Erythronium albidum White Turtlehead Chelone glabra White Vervain Verbena urticifolia White Wild Indigo Baptisia alba White Wild Indigo Baptisia lactea Whiteedge Morningglory Ipomoea hederacea Whitegrass Leersia virginica Whitlow Grass Draba verna Wholeleaf Rosinweed Silphium integrifolium Whorled Loosestrife Lysimachia quadrifolia Whorled Milkwort Polygala verticillata Whorled Rosinweed Silphium trifoliatum Wild Bergamot Monarda fistulosa Wild Black Cherry Prunus serotina Wild Blue Phlox Phlox divaricata Wild Carrot Daucus carota Wild Chervil Chaerophyllum procumbens Wild Chive Allium schoenoprasum Wild Garlic Allium canadense Wild Geranium Geranium maculatum Wild Ginger Asarum canadense Wild Hyacinth Camassia scilloides Wild Hydgrangea Hydrangea arborescens Wild Leek Allium tricoccum Wild Leek Allium tuberosum Wild Lettuce Lactuca canadensis Wild Licorice Galium circaezans Wild Madder Galium obtusum Wild Mint Mentha arvensis Wild Onion Allium canadense Wild Pansy Viola tricolor Wild Petunia Ruellia strepens Wild Quinine Parthenium integrifolium Wild Stonecrop Sedum ternatum Wild Yam Dioscorea villosa Willow Oak Quercus phellos Willowleaf Lettuce Lactuca saligna Windflower Anemone blanda Wineberry Rubus phoenicolasius Winged Loosestrife Lythrum alatum Winged Sumac Rhus copallinum Wingstem Verbesina alternifolia Winter Aconite Eranthis hyemalis Winterberry Ilex verticillata Wintercreeper Euonymus fortunei Wintercress Barbarea vulgaris Wishbone Flower Torenia fournieri Wister's Coralroot Corallorhiza wisteriana Witchgrass Panicum capillare Woman's Tobacco Antennaria plantaginifolia Wood Anemone Anemone quinquefolia Wood Gray Sedge Carex grisea Wood Nettle Laportea canadensis Wood Reedgrass Cinna arundinacea Woodland Alumroot Heuchera americana Woodland Bluegrass Poa sylvestris Woodland Bluestar Amsonia tabernaemontana Woodland Bluet Houstonia purpurea Woodland Grass Brachyelytrum erectum Woodland Lettuce Lactuca floridana Woodland Sunflower Helianthus divaricatus Woolgrass Scirpus cyperinus Woolly Panic Grass Dichanthelium acuminatum Wreath Goldenrod Solidago caesia Yellow Archangel Lamiastrum galeobdolon Yellow Bluestem Andropogon virginicus Yellow Buckeye Aesculus flava Yellow Corydalis Corydalis flavula Yellow Daylily Hemerocallis lilioasphodelus Yellow Flower Leafcup Smallanthus uvedalia Yellow Foxtail Setaria pumila Yellow Giant Hyssop Agastache nepetoides Yellow Goatsbeard Tragopogon dubius Yellow Hawkweed Hieracium caespitosum Yellow Iris Iris pseudacorus Yellow Jewelweed Impatiens pallida Yellow King-Devil Hieracium caespitosum Yellow Lady's Slipper Cypripedium calceolus Yellow Nutsedge Cyperus esculentus Yellow Passionflower Passiflora lutea Yellow Pimpernel Taenidia integerrima Yellow Pond-Lily Nuphar lutea Yellow Rocket Barbarea vulgaris Yellow Spring Bedstraw Galium verum Yellow Stargrass Hypoxis hirsuta Yellow Sundrops Calylophus serrulatus Yellow Sweet Clover Melilotus officinalis Yellow Touch-Me-Not Impatiens pallida Yellow Trillium Trillium luteum Yellow Trout Lily Erythronium americanum Yellow Violet Viola pubescens Yellow Wild Indigo Baptisia sphaerocarpa Yellow Wood Sorrel Oxalis stricta Yellowroot Xanthorhiza simplicissima Yellowwood Cladrastis kentukea Yerba-de-Tajo Eclipta prostrata Yucca Yucca filamentosa Zebra Grass Miscanthus sinensis 'Zebrinus' Zebrinus Miscanthus sinensis 'Zebrinus' Zigzag Goldenrod Solidago flexicaulis Zigzag Spiderwort Tradescantia subaspera Zinnia Zinnia violacea