Dichanthelium ovale (Ell.) Gould & C.A. Clark var. addisonii (Nash) Gould & C.A. Clark Addison's Panic Grass Castanea pumila (Linnaeus) P. Miller Allegheny Chinkapin Alternate-leaf Dogwood, Pagoda Cornel, Cornus alternifolia L.f. Pagoda Dogwood Heuchera americana L. var. americana Alumroot, Americana Alumroot Ammophila breviligulata Fern. American Beach Grass Callicarpa americana L. American Beauty-berry, French-mulberry Fagus grandifolia Ehrhart American Beech Lycopus americanus Muhl. ex W. Bart. American Bugleweed Sparganium americanum Nutt. American Bur-reed Castanea dentata (Marshall) Borkhausen American Chestnut Lygodium palmatum (Bernh.) Sw. American Climbing Fern, Hartford Fern Sacciolepis striata (L.) Nash American Cupscale Ulmus americana L. American Elm American False-hellebore, White Hellebore, Veratrum viride Aiton var. viride Green Hellebore, Indian Poke Limnobium spongia (Bosc) L.C.Rich. ex Steud. American Frog's-bit Corylus americana Walt. American Hazelnut, American Filbert Ilex opaca Aiton var. opaca American Holly Carpinus caroliniana Walt. American Hornbeam, Ironwood Phoradendron leucarpum (Raf.) Reveal & M.C. Johnston ssp. leucarpum American Mistletoe, Eastern Mistletoe Hedeoma pulegioides (L.) Pers. American Pennyroyal American Plantain, Broad-leaved Plantain, Plantago rugelii Dcne. Blackseed Plantain Cakile edentula (Bigelow) Hooker American Sea Rocket Senna hebecarpa (Fernald) Irwin & Barneby American Senna, Northern Wild Senna Elatine americana (Pursh) Arnott American Waterwort Wisteria frutescens (L.) Poir. American Wisteria Dichanthelium columbianum (Scribn.) Freckmann American Witch Grass Osmorhiza longistylis (Torr.) DC. Aniseroot Fimbristylis annua (Allioni) R. & S. Annual Fimbry Erigeron annuus (L.) Pers. Annual Fleabane Symphyotrichum subulatum (Michx.) Nesom Annual Salt-marsh Aster Thermopsis mollis (Michx.) M.A. Curtis ex Gray Appalachian Golden-banner Peltandra virginica (L.) Schott Arrow-arum, Tuckahoe Persicaria sagittata (L.) H. Gross ex Nakai Arrow-leaf Tearthumb Viola sagittata Aiton Arrow-leaved Violet Viburnum dentatum L. Arrow-wood Dichanthelium commutatum (J.A. Schultes) Gould var. ashei (Pearson ex Ashe) Mohlenbrock Ashe's Panic Grass Agrostis perennans (Walt.) Tuckerman var. perennans Autumn Bentgrass Poa autumnalis Muhl. ex Ell. Autumn Bluegrass Corallorhiza odontorhiza (Willd.) Nuttall var. odontorhiza Autumn Coralroot Eleocharis erythropoda Steudel Bald Spikerush Taxodium distichum (L.) Richard var. distichum Baldcypress Cyperus croceus Vahl Baldwin's Flatsedge Tilia americana L. Basswood Beach Bean, Trailing Wild Bean, Amberique Strophostyles helvola (L.) Ell. Bean Valerianella radiata (L.) Dufr. Beaked Corn-salad Coleataenia anceps (Michx.) Soreng ssp. anceps Beaked Panic Grass Brachyelytrum erectum (Schreb. ex Spreng.) Beauv. Bearded Shorthusk, Common Shorthusk Diplachne fusca (L.) P. Beauv. ex Roem. & Schult. var. Bearded Sprangletop, Long-awned Sprangletop, fascicularis (Lam.). P.M. Peterson & N. Snow Salt-meadow Grass Epifagus virginiana (L.) W.Barton Beechdrops Carex styloflexa Buckley Bent Sedge Spartina cynosuroides (L.) Roth Big Cordgrass, Giant Cordgrass Antennaria parlinii Fern. ssp. fallax (Greene) Bayer & Stebbins Big-head Pussytoes Big-seed Alfalfa Dodder, Large-seed Dodder, Cuscuta indecora Choisy Pretty Dodder Eragrostis hirsuta (Michx.) Nees Big-top Lovegrass Populus grandidentata Michx. Bigtooth aspen Viola pedata L. Bird's-foot violet Carya cordiformis (Wangenh.) K. Koch Bitternut Hickory Helenium amarum (Raf.) H. Rock var. amarum Bitterweed not specified Prunus serotina Ehrhart ssp. serotina Black Cherry, Wild Black Cherry Aronia melanocarpa (Michx.) Elliott Black Chokeberry Nyssa sylvatica Marshall Black Gum, Sour Gum Viburnum prunifolium L. Black Haw Gaylussacia baccata (Wangenh.) K. Koch Black Huckleberry Robinia pseudoacacia L. Black Locust Juncus roemerianus Scheele Black Needle Rush Quercus velutina Lamarck Black Oak Rubus occidentalis L. Black Raspberry Sanicula canadensis L. var. canadensis Black Snakeroot Juglans nigra L. Black Walnut Salix nigra Marsh. Black Willow Carex nigromarginata Schweinitz Black-edged Sedge Rudbeckia hirta L. Black-eyed Susan Quercus marilandica Muenchhausen var. marilandica Blackjack Oak Carex intumescens Rudge var. intumescens Bladder Sedge Staphylea trifolia L. Bladdernut Sanguinaria canadensis L. Bloodroot Caulophyllum thalictroides (L.) Michx. Blue Cohosh, Common Blue Cohosh Aconitum uncinatum L. Blue Monkshood Nuttallanthus canadensis (L.) D.A. Sutton Blue Toadflax, Canada Toadflax Verbena hastata L. Blue Vervain, Common Vervain Cuphea viscosissima Jacq. Blue Waxweed, Clammy Cuphea Solidago caesia L. var. caesia Blue-stemmed Goldenrod, Wreath Goldenrod Carex tribuloides Wahlenb. var. tribuloides Blunt Broom Sedge Eleocharis obtusa (Willd.) Schultes Blunt Spikerush Schoenoplectus purshianus (Fernald) Strong var. purshianus Blunt-scale Bulrush, Weak-stalk Bulrush Galium obtusum Bigelow var. obtusum Bluntleaf Bedstraw Galium obtusum Bigelow var. var. filifolium (Wieg.) Fern. Bluntleaf Bedstraw, Carolina Bedstraw Veratrum virginicum (L.) Aiton Bog Bunchflower, Virginia Bunchflower Parathelypteris simulata (Davenport) Holttum Bog Fern, Massachusetts Fern Dichanthelium lucidum (Ashe) LeBlond Bog Panic Grass Persicaria setacea (Baldw.) Small Bog Smartweed, Swamp Smartweed Xyris difformis Chapman var. difformis Bog Yellow-eyed Grass Eupatorium perfoliatum L. Boneset, Common Boneset Dichanthelium boscii (Poir.) Gould & C.A. Clark Bosc's Panic Grass Elymus hystrix L. var. hystrix Bottlebrush Grass Carex comosa Boott Bottlebrush Sedge, Bristly Sedge Acer negundo L. var. negundo Boxelder, Eastern Boxelder Pteridium aquilinum (L.) Kuhn Bracken Fern Dichanthelium microcarpon (Muhl. ex Elliott) Mohlenbrock Branched Panic Grass Wolffia brasiliensis Weddell Brazilian Watermeal, Pointed Watermeal Eleocharis flavescens (Poiret) Urban var. olivacea (Torr.) Gleason Bright Green Spikerush Ranunculus hispidus Michx. Bristly Buttercup, Hispid Buttercup Rubus hispidus L. Bristly Dewberry, Swamp Dewberry Robinia hispida L. Bristly Locust not specified Carex leptalea Wahlenb. Bristly-stalk Sedge Phegopteris hexagonoptera (Michx.) Fee Broad Beech Fern Carex laxiflora Lam. Broad Loose-flowered Sedge Sagittaria latifolia Willdenow Broad-leaved Arrowhead, Duck Potato, Wapato Carex platyphylla Carey Broad-leaved Sedge Carex alata Torrey Broad-winged Sedge Urochloa platyphylla (Munro ex Wright) R. Webster Broadleaf Signal-grass not specified Carex scoparia Schk. ex Willd. var. scoparia Broom Sedge Broomsedge, Broomstraw, Sedge Grass, Sage Andropogon virginicus L. var. virginicus Grass Rhynchospora capitellata (Michaux) Vahl Brownish Beaksedge Pyrularia pubera Michx. Buffalo-nut, Oil-nut Luzula bulbosa (Wood) Smyth & Smyth Bulbous Woodrush Symphyotrichum dumosum (L.) Nesom var. dumosum Bushy Aster Andropogon glomeratus (Walt.) B.S.P. var. glomeratus Bushy Bluestem Polygonum ramosissimum Michx. Bushy Knotweed Clitoria mariana L. var. mariana Butterfly Pea Asclepias tuberosa L. var. tuberosa Butterfly-weed, Common Butterfly-weed Juglans cinerea L. Butternut, White Walnut Cephalanthus occidentalis L. Buttonbush Symphyotrichum lateriflorum (L.) A.& D. Love Calico Aster, Starved Aster Crocanthemum canadense (L.) Britton Canada Frostweed, Canada Sunrose Teucrium canadense L. Canada Germander, American Germander Astragalus canadensis L. var. canadensis Canada Milkvetch Mentha canadensis L. Canada Mint, Wild Mint Canada Moonseed, Common Moonseed, Yellow Menispermum canadense L. Parilla Hypericum canadense L. Canada St. John's-wort Juncus canadensis J. Gay ex Laharpe Canadian Rush Lobelia cardinalis L. Cardinal Flower Carex albicans complex Carex albicans complex Carex amphibola complex Carex amphibola complex Elephantopus carolinianus Raeusch. Carolina Elephant's-foot Pyrrhopappus carolinianus (Walt.) DC. Carolina False Dandelion Alopecurus carolinianus Walt. Carolina Foxtail Grass Geranium carolinianum L. Carolina Geranium, Carolina Cranesbill Matelea carolinensis (Jacq.) Woods. Carolina Milkvine Scleria pauciflora Muhl. ex Willd. Carolina Nutrush, Papillose Nutrush Rosa carolina L. ssp. carolina Carolina Rose, Pasture Rose Carex caroliniana Schweinitz Carolina Sedge Ruellia caroliniensis (Gmelin) Steudel Carolina Wild-petunia, Common Wild-petunia Carrion-flower, Common Carrion-flower, Smilax herbacea L. Smooth Carrion-flower Smilax bona-nox L. var. bona-nox Catbrier, Fringed Greenbrier Quercus montana Linnaeus Chestnut Oak, Rock Chestnut Oak Prunus angustifolia Marshall Chickasaw Plum Quercus muehlenbergii Engelmann Chinquapin Oak, Chinkapin Oak, Yellow Oak Polystichum acrostichoides (Michx.) Schott Christmas Fern Osmundastrum cinnamomeum (L.) C. Presl var. cinnamomeum Cinnamon Fern Physalis heterophylla Nees Clammy Ground-cherry Gratiola neglecta Torr. Clammy Hedge-hyssop Asclepias amplexicaulis J.E.Smith Clasping Milkweed Clasping St. John's-wort, Clasping-leaf St. Hypericum gymnanthum Engelm. & A. Gray John's-wort Potamogeton perfoliatus L. Clasping-leaf Pondweed, Perfoliate Pondweed Pilea pumila (L.) Gray Clearweed, Greenfruit Clearweed Galium aparine L. Cleavers Celastrus scandens L. Climbing Bittersweet, American Bittersweet Fallopia scandens (L.) Holub Climbing False Buckwheat Mikania scandens (L.) Willd. Climbing Hempweed Decumaria barbara L. Climbing Hydrangea, Woodvamp Rhynchosia difformis (Ell.) DC. Climbing Snoutbean, Double-form Snoutbean Sanicula odorata (Raf.) K.M. Pryer & L.R. Phillippe Clustered Snakeroot Cyperus polystachyos Rottboell Coast Flatsedge, Many-spike Flatsedge Smilax pseudochina L. Coastal Carrion-flower Eragrostis refracta (Muhl.) Scribn. Coastal Lovegrass Glyceria obtusa (Muhl.) Trin. Coastal Mannagrass Gentiana catesbaei Walt. Coastal Plain Gentian, Elliott's Gentian Carex crebriflora Wiegand Coastal Plain Sedge Amelanchier obovalis (Michx.) Ashe Coastal Plain Serviceberry Crataegus crus-galli L. var. crus-galli Cockspur Hawthorn Carex collinsii Nuttall Collins's Sedge Wolffia columbiana Karst. Columbian Watermeal Actaea racemosa L. Common Black Cohosh, Bugbane Utricularia macrorhiza Le Conte Common Bladderwort, Greater Bladderwort Trichostema dichotomum L. Common Blue Curls, Forked Blue Curls Viola sororia Willd. Common Blue Violet, Confererate Violet Houstonia caerulea L. Common Bluets, Azur Bluets, Quaker Ladies Carex bromoides Schk. ex Willd. ssp. bromoides Common Brome Sedge Diodia teres Walt. Common Buttonweed, Rough Buttonweed Typha latifolia L. Common Cattail, Broadleaf Cattail Potentilla simplex Michx. Common Cinquefoil Xanthium strumarium L. Common Cocklebur Rubus flagellaris Willd. Common Dewberry Cunila origanoides (L.) Britt. Common Dittany, Wild Oregano, Stonemint Cuscuta gronovii Willd. ex Roem. & Schult. Common Dodder Lemna minor L. Common Duckweed Common Eastern Brome Grass, Hairy Woodland Bromus pubescens Sprengel Brome Sambucus canadensis L. var. canadensis Common Elderberry Oenothera biennis L. complex Common Evening-primrose Smilax rotundifolia L. Common Greenbrier, Bullbrier, Horsebrier Common Ground-pine, Common Tree-clubmoss, Dendrolycopodium obscurum (L.) A. Haines Flat-branched Tree-clubmoss Celtis occidentalis L. Common Hackberry, Northern Hackberry Bulbostylis capillaris (L.) Clarke in Hook. Common Hairsedge Ceratophyllum demersum L. Common Hornwort, Coontail Arisaema triphyllum (L.) Schott ssp. triphyllum Common Jack-in-the-pulpit Proserpinaca palustris L. Common Mermaid-weed Asclepias syriaca L. Common Milkweed Chamaecrista fasciculata (Michx.) Greene var. fasciculata Common Partridge-pea Diospyros virginiana L. Common Persimmon, American Persimmon Lechea racemulosa Michx. Common Pinweed, Illinois Pinweed Phytolacca americana L. var. americana Common Pokeweed Veronica peregrina L. var. peregrina Common Purslane Speedwell Ambrosia artemisiifolia L. Common Ragweed Diphasiastrum digitatum (Dill. ex A. Braun) Holub Common Running-cedar, Common Running-pine Juncus effusus L. Common Rush, Soft Rush Helenium autumnale L. Common Sneezeweed, Autumn Sneezeweed Veronica officinalis L. Common Speedwell not specified Eleocharis palustris (L.) Roemer & Schultes Common Spikerush Symplocos tinctoria (L.) L'Her. Common Sweetleaf, Horse-sugar Thalictrum pubescens Pursh Common Tall Meadow-rue Common Three-seeded Mercury, Common Acalypha rhomboidea Raf. Copperleaf Schoenoplectus pungens (Vahl) Palla var. pungens Common Threesquare, Chairmaker's Rush Justicia americana (L.)Vahl Common Water-willow, American Water-willow Asarum canadense L. Common Wild Ginger Parthenium integrifolium L. Common Wild Quinine Common Wood Reedgrass, Sweet Wood Reed- Cinna arundinacea L. grass Luzula multiflora (Ehrhart) Lejeune var. multiflora Common Woodrush Achillea millefolium L. Common Yarrow Oxalis stricta L. Common Yellow Wood-sorrel Yucca filamentosa L. Common Yucca, Adam's Needle Cuscuta compacta Jussieu ex Choisy Compact Dodder Symphoricarpos orbiculatus Moench Coralberry not specified Doellingeria infirma (Michx.) Greene Cornel-leaved Aster Melampyrum lineare Desr. Cow-wheat Oxypolis rigidior (L.) Raf. Cowbane, Stiff Cowbane Tipularia discolor (Pursh) Nutt Cranefly Orchid Lespedeza repens (L.) W. Bart. Creeping Lespedeza, Creeping Bush-clover Juncus repens Michaux Creeping Rush Eleocharis fallax Weatherby Creeping Spikerush Hexalectris spicata (Walter) Barnh. var. spicata Crested Coralroot Platanthera cristata (Michx.) Lindl. Crested Fringed Orchid, Golden Fringed Orchid Dryopteris cristata (L.) Gray Crested Wood Fern, Crested Fern Bignonia capreolata L. Cross-vine Cardamine pratensis Linnaeus Cuckoo-flower Ranunculus sceleratus L. var. sceleratus Cursed Buttercup, Celery-leaved Crowfoot Polygala curtissii Gray Curtiss' Milkwort Cut-leaf Coneflower, Common Cut-leaf Rudbeckia laciniata L. var. laciniata Coneflower, Green-headed Coneflower Sceptridium dissectum (Sprengel) Lyon Cut-leaf Grape Fern, Dissected Grape Fern Cardamine concatenata (Michaux) O. Schwarz Cut-leaf Toothwort Oenothera laciniata Hill Cutleaf Evening-primrose Cyperus lupulinus complex Cyperus lupulinus complex Erigeron strigosus Muhl. ex Willd. var. strigosus Daisy Fleabane Gaylussacia frondosa (L.) Torr. & Gray ex Torr. Dangleberry Dichanthelium clandestinum (L.) Gould Deer-Tongue Grass Vaccinium stamineum L. Deerberry Bidens frondosa L. Devil's Beggar-ticks Aralia spinosa L. Devil's Walking-stick Dichanthelium acuminatum complex Dichanthelium acuminatum complex Dichanthelium dichotomum complex Dichanthelium dichotomum complex Juncus diffusissimus Buckl. Diffuse Rush, Slim-pod Rush Desmodium glabellum (Michx.) DC. Dillenius' Tick-trefoil Penthorum sedoides L. Ditch Stonecrop Persicaria lapathifolia (L.) Gray Dock-leaf Smartweed, Pale Smartweed Eupatorium capillifolium (Lam.) Small Dog-fennel Viola labradorica Schrank Dog-violet Persicaria punctata (Ell.) Small Dotted Smartweed Agrimonia pubescens Wallr. Downy Agrimony Lobelia puberula Michaux Downy Lobelia Galactia volubilis (L.) Britt. var. volubilis Downy Milkpea Goodyera pubescens (Willd.) R.Br. ex Aiton f. Downy Rattlesnake-plantain Amelanchier arborea (Michx. f.) Fernald Downy Serviceberry Aureolaria virginica (L.) Pennell Downy Yellow False Foxglove, Downy Oak-leach Carex prasina Wahlenb. Drooping Sedge Juncus dudleyi Wieg. Dudley's Rush Cenchrus tribuloides L. Dune Sandbur Sagittaria subulata (L.) Buch. Dwarf Arrowhead Rhododendron atlanticum (Ashe) Rehder Dwarf Azalea Potentilla canadensis L. Dwarf Cinquefoil, Canada Cinquefoil Panax trifolius L. Dwarf Ginseng Gaylussacia dumosa (Andr.) Torr. & Gray Dwarf Huckleberry Eleocharis parvula (R. & S.) Link ex Bluff, Nees & Schauer Dwarf Spikerush, Small Spikerush Hypericum mutilum L. Dwarf St. John's-wort Salix occidentalis Walter Dwarf Upland Willow, Sage Willow Krigia virginica (L.) Willd. Dwarf-dandelion, Virginia Dwarf-dandelion Poa cuspidata Nutt. Early Bluegrass, Short-leaved Bluegrass Myosotis verna Nutt. Early Forget-me-not, Spring Forget-me-not Solidago juncea Ait. Early Goldenrod Vaccinium pallidum Ait. Early Lowbush Blueberry, Hillside Blueberry Micranthes virginiensis (Michaux) Small Early Saxifrage Gonolobus suberosus (L.) R. Br. var. suberosus Eastern Anglepod, Angular-fruit Milkvine Comandra umbellata (L.) Nuttall var. umbellata Eastern Bastard Toadflax Solanum ptycanthum Dunal Eastern Black Nightshade Iresine rhizomatosa Standley Eastern Bloodleaf, Juda's Bush Eastern Blue-eyed-grass, Atlantic Blue-eyed- Sisyrinchium atlanticum Bickn. grass Populus deltoides Bartram ex Marshall ssp. deltoides Eastern Cottonwood Carex oligocarpa Willd. Eastern Few-fruited Sedge Scrophularia marilandica L. Eastern Figwort, Late Figwort Tripsacum dactyloides (L.) L. var. dactyloides Eastern Gamagrass Glyceria septentrionalis A.S. Hitchc. var. septentrionalis Eastern Mannagrass, Floating Mannagrass Galactia regularis (L.) B.S.P. Eastern Milkpea Carex amphibola Steudel Eastern Narrow-leaved Sedge Piptochaetium avenaceum (L.) Parodi Eastern Needlegrass Opuntia humifusa (Raf.) Raf. var. humifusa Eastern Prickly-pear Cercis canadensis L. var. canadensis Eastern Redbud Juniperus virginiana L. var. virginiana Eastern Redcedar Maianthemum racemosum (L.) Link ssp. racemosum Eastern Solomon's-plume, False Solomon's-seal Pinus strobus L. Eastern White Pine Carex blanda Dewey Eastern Woodland Sedge Hypoxis hirsuta (L.) Coville Eastern Yellow Stargrass Asplenium platyneuron (L.) B.S.P. Ebony Spleenwort Andropogon gyrans Ashe Elliott's Bluestem Solidago ulmifolia Muhl. ex Willd. var. ulmifolia Elm-leaf Goldenrod Circaea canadensis (L.) Hill ssp. canadensis Enchanter's Night-shade Eleocharis engelmannii Steudel Engelmann Spikerush Sagittaria engelmanniana J.G. Smith Engelmann's Arrowhead Solidago erecta Pursh Erect Goldenrod, Slender Goldenrod Polygonum erectum L. Erect Knotweed Morella caroliniensis (P. Miller) Small Evergreen Bayberry, Pocosin Bayberry Dryopteris intermedia (Muhl. ex Willd.) Gray Evergreen Wood Fern, Fancy Fern Phlox paniculata L. Fall Phlox, Garden Phlox Eclipta prostrata (L.) L. False Daisy, Yerba-de-tajo Amorpha fruticosa L. False Indigo-bush, Tall Indigo-bush Boehmeria cylindrica (L.) Sw. False Nettle Lindernia dubia (L.) Pennell var. dubia False Pimpernel, Yellow-seed False Pimpernel Cyperus filicinus Vahl. Fern Flatsedge Desmodium fernaldii Schub. Fernald's Tick-trefoil Carex festucacea Schk. ex Willd. Fescue Sedge Eubotrys racemosus (L.) Nutt. Fetterbush, Swamp Dog-hobble Triosteum perfoliatum L. Feverwort, Late Horse-gentian Dichanthelium oligosanthes (J.A. Schultes) Gould var. oligosanthes Few-flowered Panic Grass Hylodesmum pauciflorum (Nutt.) H. Ohashi & R.R. Mill Few-flowered Tick-trefoil Cuscuta campestris Yuncker Field Dodder Equisetum arvense L. Field Horsetail Viola bicolor Pursh Field Pansy, Wild Pansy Paspalum laeve Michx. Field Paspalum Cirsium discolor (Muhl. ex Willd.) Spreng. Field Thistle Erechtites hieraciifolius (L.) Raf. ex DC. Fireweed, Pilewort, American Burnweed Cuscuta pentagona Engelm. Five-angled Dodder Paspalum floridanum Michx. Florida Paspalum Cornus florida L. Flowering Dogwood Euphorbia corollata L. Flowering Spurge Galium circaezans Michx. Forest Bedstraw Aristida dichotoma Michx. var. dichotoma Fork-tip Three-awn Grass Juncus dichotomus Ell. Forked Rush Glyceria striata (Lam.) A.S. Hitchc. Fowl Mannagrass Vitis labrusca L. Fox Grape Carex vulpinoidea Michaux Fox Sedge Lycopodiella alopecuroides (L.) Cranfill Foxtail Clubmoss Cyperus odoratus L. var. odoratus Fragrant Flatsedge, Rusty Flatsedge Carex frankii Kunth Frank's Sedge Spartina pectinata Link Freshwater Cordgrass, Prairie Cordgrass Lysimachia ciliata L. Fringed loosestrife Chionanthus virginicus L. Fringetree, Old Man's Beard Phyla lanceolata (Michx.) Greene Frogfruit, Lance-leaf Frogfruit Symphyotrichum pilosum (Willd.) Nesom Frost Aster Symphyotrichum pilosum (Willd.) Nesom var. pringlei (Gray) Nesom Frost Aster, Pringle's Aster Carex hirsutella Mackenzie Fuzzy Sedge, Hairy-leaved Sedge Galax urceolata (Poir.) Brummitt Galax Scirpus georgianus Harper Georgia Bulrush Setaria magna Griseb. Giant Bristlegrass, Giant Foxtail Sparganium eurycarpum Engelm. ex Gray Giant Bur-reed Erianthus giganteus (Walt.) P. Beauv. Giant Plumegrass, Sugarcane Plumegrass Ambrosia trifida L. Giant Ragweed Amelanchier canadensis (L.) Medik. Giant Ragweed Carex gigantea Rudge Giant Sedge Panax quinquefolius L. Ginseng, American Ginseng, Sang Homalosorus pycnocarpon (Spreng.) Pichi-Sermolli Glade Fern Cyperus echinatus (L.) Wood Globe Flatsedge Eupatorium godfreyanum Cronq. Godfrey's Thoroughwort Orontium aquaticum L. Golden Club Packera aurea (L.) A. & D. Love Golden Ragwort, Heartleaf Ragwort Chrysosplenium americanum Schwein. ex Hook. Golden Saxifrage, Water-mat, Water-carpet Liatris pilosa (Aiton) Willd. Grass-leaf Blazing Star, Grass-leaf Gayfeather Sagittaria graminea Michaux Grass-leaved Arrowhead Pityopsis graminifolia (Michx.) Nutt. var. latifolia (Fern.) Semple & Bowers Grass-leaved Golden-aster Grass-leaved Goldenrod, Lance-leaved Euthamia graminifolia (L.) Nutt. var. graminifolia Goldenrod, Common Flat-top Goldenrod Juncus marginatus Rostk. Grass-leaved Rush Solidago nemoralis Ait. var. nemoralis Gray Goldenrod Cyperus grayi Torrey Gray's Flatsedge Carex grayi Carey Gray's Sedge Lobelia siphilitica L. var. siphilitica Great Blue Lobelia Spirodela polyrrhiza (L.) Schleid. Greater Duckweed, Duckmeal Hypericum walteri Gmelin Greater Marsh St. John's-wort Carex normalis Mackenzie Greater Straw Sedge Malaxis unifolia Michaux Green Adder's-mouth Fraxinus pennsylvanica Marshall Green Ash, Red Ash Arisaema dracontium (L.) Schott Green Dragon Cyperus pseudovegetus Steudel Green Flatsedge, Marsh Flatsedge Carex albolutescens Schweinitz Greenish-white Sedge Apios americana Medik. Groundnut Angelica venenosa (Greenway) Fern. Hairy Angelica Galium pilosum Ait. Hairy Bedstraw Hairy Crabgrass, Big Crabgrass, Southern Digitaria sanguinalis / ciliaris complex Crabgrass not specified Elephantopus tomentosus L. Hairy Elephant's-foot, Devil's Grandmother Hieracium gronovii L. Hairy Hawkweed Hairy Highbush Blueberry, Black Highbush Vaccinium fuscatum Ait. Blueberry Hairy Leafcup, Yellow-flowered Leafcup, Smallanthus uvedalia (L.) Mackenzie ex Small Bear's-foot Lechea mucronata Raf. Hairy Pinweed Scutellaria elliptica Muhl. ex Spreng. Hairy Skullcap Scutellaria elliptica Muhl. ex Spreng. var. elliptica Hairy Skullcap Desmodium ciliare (Muhl. ex Willd.) DC. Hairy Small-leaf Tick-trefoil Eupatorium pubescens Muhl. ex Willd. Hairy Thoroughwort, Hairy Boneset Fuirena squarrosa Michaux Hairy Umbrella-sedge Elymus villosus Muhl. ex Willd. Hairy Wild Rye, Downy Wild Rye Luzula acuminata Raf. Hairy Woodrush Chaerophyllum tainturieri Hook. var. tainturieri Hairy-fruit Chervil, Southern Wild Chervil Persicaria arifolia (L.) Haraldson Halberd-leaf Tearthumb Dennstaedtia punctilobula (Michx.) T. Moore Hay-scented Fern Ampelopsis cordata Michx. Heart-leaf Peppervine, False Grape not specified Carex gravida Bailey Heavy Sedge Calystegia sepium (L.) R. Br. Hedge Bindweed Baccharis halimifolia L. High-tide Bush, Groundsel Tree Carex complanata Torr. & Hook. Hirsute Sedge Stachys hispida Pursh Hispid Hedge-nettle, Bristly Hedge-nettle Pycnanthemum incanum (L.) Michx. var. incanum Hoary Mountain-mint Lithospermum canescens (Michx.) Lehm. Hoary Puccoon Desmodium canescens (L.) DC. Hoary Tick-trefoil Amphicarpaea bracteata (L.) Fern. Hog-peanut Eutrochium fistulosum (Barratt) E.E. Lamont Hollow Joe-pye-weed Cryptotaenia canadensis (L.) DC. Honewort Gleditsia triacanthos L. Honey Locust not specified Cynanchum laeve (Michx.) Pers. Honeyvine, Sandvine Ranunculus recurvatus Poir. var. recurvatus Hooked Buttercup, Hooked Crowfoot Carex lupulina Willd. Hop Sedge Rhynchospora macrostachya Torrey ex Gray Horned Beaksedge Zannichellia palustris L. Horned Pondweed Solanum carolinense L. var. carolinense Horse-nettle, Carolina Horse-nettle Monarda punctata L. var. punctata Horsemint, Spotted Beebalm Conyza canadensis (L.) Cronq. var. canadensis Horseweed, Common Horseweed Carex atlantica Bailey ssp. capillacea (Bailey) Rezn. Howe's Sedge Humped Bladderwort, Shortspur Creeping Utricularia gibba L. Bladderwort Scutellaria integrifolia L. Hyssop Skullcap Eupatorium hyssopifolium L. Hyssop-leaf Thoroughwort Medeola virginiana L. Indian Cucumber-root Apocynum cannabinum L. Indian Hemp, Hemp Dogbane Monotropa uniflora L. Indian Pipe Lobelia inflata L. Indian Tobacco Ilex glabra (L.) Gray Inkberry Rottboellian cochinchinensis (Lour.) Clayton Itchgrass not specified Ivy-leaved Water Crowfoot, Long-stalked Ranunculus hederaceus L. Crowfoot Salicornia virginica L. Jointed Glasswort Polypremum procumbens L. Juniper-leaf, Rustweed, Polypremum Cypripedium kentuckiense C.F.Reed Kentucky Lady's-slipper Kidney-leaved Grass-of-Parnassus, Appalachian Parnassia asarifolia Vent. Grass-of-Parnassus, Brook Parnassia Ranunculus abortivus L. Kidneyleaf Buttercup Setaria parviflora (Poir.) Kerguelen Knotroot Bristlegrass, Knotroot Foxtail Ammannia latifolia L. Koehne's Ammannia, Pink Redstem Carex kraliana Naczi & Bryson Kral's Sedge Eragrostis capillaris (L.) Nees Lacegrass Carex lacustris Willdenow Lake-shore Sedge Lance-leaved Arrowhead, Bull-tongue Sagittaria lancifolia L. var. media (Micheli) Bogin Arrowhead Sabatia dodecandra (L.) BSP Large Marsh-pink, Marsh Rose-gentian Callitriche heterophylla Pursh ssp. heterophylla Large Water-starwort Isotria verticillata (Muhl. ex Willd.) Raf. Large Whorled Pogonia Cypripedium parviflorum Salisb. var. pubescens (Willd.) Knight Large Yellow Lady's-slipper Symphyotrichum grandiflorum (L.) Nesom Large-flowered Aster Myosotis macrosperma Englem. Large-seed Forget-me-not Iris versicolor L. Larger Blue Flag, Northern Blue Flag Eupatorium serotinum Michx. Late Thoroughwort Scirpus polyphyllus Vahl Leafy Bulrush Potamogeton foliosus Raf. var. foliosus Leafy Pondweed Juncus coriaceus Mackenzie Leathery Rush Lechea pulchella Raf. Leggett's Pinweed Arnica acaulis (Walt.) B.S.P. Leopard's-bane Pilea fontana (Lunell) Rydb. Lesser Clearweed, Blackfruit Clearweed Liparis liliifolia (L.) L.C.Rich. ex Ker-Gawl. Lily-leaved Twayblade, Large Twayblade Carex granularis Muhl. ex Willd. Limestone Meadow Sedge Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. lindheimeri (Nash) Gould & C.A. Clark Lindheimer's Panic Grass Carex striatula Michaux Lined Sedge Prenanthes serpentaria Pursh Lion's foot, Cankerweed Hordeum pusillum Nutt. Little Barley Schizachyrium scoparium (Michx.) Nash var. scoparium Little Bluestem Spiranthes tuberosa Raf. Little Ladies'-tresses Saururus cernuus L. Lizard's-tail, Water-dragon Pinus taeda L. Loblolly Pine Dryopteris celsa (Wm. Palmer) Knowlt., Palmer & Pollard ex Small Log Fern Ludwigia brevipes (B.H. Long ex Britt., A. Braun & Long Beach Seedbox, Long Beach Primrose- Small) Eames willow Sagittaria australis (J.G.Smith) Small Long-beaked Arrowhead Carex crinita Lam. var. crinita Long-fringed Sedge Coreopsis lanceolata L. Long-stalk Coreopsis not specified Lindernia dubia (L.) Pennell var. anagallidea (Michx.) Cooperrider Long-stalked False Pimpernel Eleocharis tuberculosa (Michx.) Schultes Long-tubercled Spikerush, Cone-cup Spikerush Carex longii Mackenzie Long's Sedge Physalis longifolia Nuttall var. subglabrata (Mackenzie & Bush) Cronq. Longleaf Ground-cherry Potamogeton nodosus L. Longleaf Pondweed, American Pondweed Utricularia biflora Lam. Longspur Creeping Bladderwort Phryma leptostachya L. var. leptostachya Lopseed, American Lopseed Pedicularis canadensis L. Lousewort, Wood-betony Kyllinga pumila Michaux Low Spikesedge Rhynchospora glomerata (L.) Vahl var. glomerata lustered Beaksedge Arabidopsis lyrata (L.) O'Kane & Al-Shehbaz ssp. lyrata Lyre-leaf Rock Cress Salvia lyrata L. Lyre-leaf Sage Scutellaria lateriflora L. var. lateriflora Mad-dog Skullcap, Blue Skullcap Magnolia virginiana L. Magnolia virginiana L. Lyonia ligustrina (L.) DC. var. ligustrina Maleberry, He-Huckleberry Cyperus lancastriensis Porter ex Gray Many-flowered Flatsedge Viburnum acerifolium L. Maple-leaf Viburnum, Dockmackie Dryopteris marginalis (L.) Gray Marginal Wood Fern Viola cucullata Ait. Marsh Blue Violet Thelypteris palustris Schott var. pubescens (Lawson) Fern. Marsh Fern Fimbristylis castanea (Michx.) Vahl Marsh Fimbry Lilaeopsis chinensis (L.) Kuntze Marsh Lilaeopsis, Eastern Grasswort Caltha palustris L. Marsh Marigold, Cowslip Chamaecrista fasciculata (L.) Moench var. macrosperma (Fernald) C. F. Reed Marsh Patridge-pea, Marsh Senna Ludwigia palustris (L.) Elliott Marsh Seedbox, Common Water-purslane Carex hormathodes Fernald Marsh Straw Sedge Hydrocotyle umbellata L. Marsh Water-pennywort, Marsh-pennywort Rorippa palustris (L.) Besser ssp. fernaldiana (Butters & Abbe) Jonsell Marsh Yellow Cress Iva frutescens L. Marsh-elder Persicaria hydropiper (L.) Spach Marsh-pepper Smartweed, Water-pepper Chrysopsis mariana (L.) Ell. Maryland Golden-aster Rhexia mariana L. var. mariana Maryland Meadow Beauty, Pale Meadow Beauty Polygala mariana P. Mill. Maryland Milkwort Senna marilandica (L.) Link Maryland Wild Senna, Southern Wild Senna Dichanthelium meridionale (Ashe) Freckmann Matting Panic Grass Podophyllum peltatum L. Mayapple Lycopodioides apodum (L.) Kuntze Meadow Spikemoss Melonette, Creeping Cucumber, Guadeloupe Melothria pendula L. Cucumber Persicaria hydropiperoides (Michx.) Small Mild Water-pepper, Marsh-pepper Smartweed Lemna perpusilla Torr. Minute Duckweed Conoclinium coelestinum (L.) DC. Mistflower, Ageratum Ptilimnium capillaceum (Michx.) Raf. Mock Bishop's-weed Carya tomentosa (Poir.) Nutt. Mockernut Hickory Eupatorium mohrii Greene Mohr's Thoroughwort Stewartia ovata (Cav.) Weatherby Mountain Camellia, Mountain Stewartia Kalmia latifolia L. Mountain Laurel, Ivy Heteranthera reniformis Ruiz & Pavon Mud Plantain, Kidneyleaf Mud Plantain Carex muehlenbergii Schk. ex Willd. Muehlenberg's Sedge Vitis rotundifolia Michx. var. rotundifolia Muscadine Grape, Scuppernong Hylodesmum nudiflorum (L.) H. Ohashi & R.R. Mill Naked-Flowered Tick-trefoil Narrow-leaf Lespedeza, Narrow-leaf Bush- Lespedeza angustifolia (Pursh) Ell. clover Narrow-leaf Loosestrife, Wand Loosestrife, Salt Lythrum lineare L. Marsh Loosestrife Narrow-leaf Mountain-mint, Slender Mountain- Pycnanthemum tenuifolium Schrad. mint Oenothera fruticosa L. ssp. Fruticosa Narrow-leaf Sundrops, Southern Sundrops Narrow-leaf Tick-trefoil, Panicled-leaf Tick- Desmodium paniculatum (L.) DC. var. paniculatum trefoil Verbena simplex Lehm. Narrow-leaf Vervain Sericocarpus linifolius (L.) B.S.P. Narrow-leaf White-top Aster Sisyrinchium angustifolium P. Mill. Narrow-leaved Blue-eyed-grass Typha angustifolia L. Narrowleaf Cattail Juncus scirpoides Lam. Needle-pod Rush, Lobe-headed Rush Sisyrinchium mucronatum Michx. Needle-tip Blue-eyed-grass Woodwardia areolata (L.) T. Moore Netted Chain Fern Ceanothus americanus L. New Jersey Tea, Redroot Symphyotrichum novi-belgii (L.) Nesom New York Aster Parathelypteris noveboracensis (L.) Ching New York Fern Vernonia noveboracensis (L.) Michx. New York Ironweed Muhlenbergia schreberi J.F. Gmel. Nimblewill Rhynchospora inexpansa (Michaux) Vahl Nodding Beaksedge Bidens cernua L. Nodding Beggar-ticks, Nodding Bur-marigold Festuca subverticillata (Pers.) Alexeev Nodding Fescue Cerastium nutans Raf. var. nutans Nodding Mouse-ear Chickweed Euphorbia nutans Lagasca y Segura Nodding Spurge, Eyebane Morella pensylvanica (Mirbel) Kartesz Northern Bayberry Adiantum pedatum L. Northern Maidenhair Fern Quercus rubra Linnaeus var. rubra Northern Red Oak Lobelia nuttallii J. A.Schultes Nuttall's Lobelia Calamagrostis coarctata (Torrey) Eaton Nuttall's Reedgrass Desmodium nuttallii (Schindl.) Schub. Nuttall's Tick-trefoil Nuttall's Waterweed, Free-flowered Elodea nuttallii (Planchon) St. John Waterweed Physostegia virginiana (L.) Benth. Obedient-plant Schoenoplectus americanus (Pers.) Volk. ex Schinz & Keller Olney Threesquare Impatiens capensis Meerburg Orange Jewelweed, Spotted Jewelweed Polygala lutea L. Orange Milkwort, Yellow milkwort Carex cephalophora Muhl. ex Willd. Oval-leaved Sedge Rumex altissimus Wood Pale Dock, Tall Dock Lemna valdiviana Phil. Pale Duckweed Arnoglossum atriplicifolium (L.) H.E. Robins. Pale Indian-plantain Symphyotrichum lanceolatum (Willd.) Nesom Panicled Aster, Eastern Lined Aster Eriocaulon parkeri B.L.Robinson Parker's Pipewort Mitchella repens L. Partidge-berry Kyllinga gracillima Miquel Pasture Spikesedge not specified Cirsium pumilum (Nutt.) Spreng. Pasture Thistle Juncus tenuis Willd. Path Rush, Slender Rush, Poverty Rush Asimina triloba (L.) Dunal Pawpaw, Common Pawpaw Stylosanthes biflora (L.) B.S.P. Pencilflower Cardamine pensylvanica Muhlenberg ex Willdenow Pennsylvania Bittercress Rubus pensilvanicus Poir. Pennsylvania Blackberry, Prickly Blackberry Parietaria pensylvanica Muhl. ex Willd. Pennsylvania Pellitory, Rock Pellitory Persicaria pensylvanica (L.) M. Gomez Pennsylvania Smartweed, Pinkweed Obolaria virginica L. Pennywort Symphyotrichum tenuifolium (L.) Nesom Perennial Salt-marsh Aster Uvularia perfoliata L. Perfoliate Bellwort Erigeron philadelphicus L. var. philadelphicus Philadelphia Fleabane Pontederia cordata L. var. cordata Pickerelweed Carya glabra (P. Miller) Sweet Pignut Hickory Quercus palustris Muenchhausen Pin Oak Solidago fistulosa P. Mill. Pine Barren Goldenrod Cyperus retrorsus Chapman Pineland Flatsedge Pityopsis aspera (Shuttlw. ex Small) Small var. adenolepis (Fern.) Semple & Bowers Pineland Golden-aster Hypopitys monotropa Crantz Pinesap Hypericum gentianoides (L.) B.S.P. Pineweed, Orange-grass Cypripedium acaule Aiton Pink Lady's-slipper, Moccasin-flower Polygala incarnata L. Pink Milkwort, Procession Flower Drosera capillaris Poir. Pink Sundew Fleischmannia incarnata (Walt.) King & Robins. Pink Thoroughwort Strophostyles umbellata (Muhl. ex Willd.) Britt. Pink Wild Bean, Perennial Wild Bean Chimaphila umbellata (L.) W. Barton ssp. cisatlantica (Blake) Hulten Pipsissewa, Prince's-pine Antennaria plantaginifolia (L.) Richards. Plantain-leaved Pussytoes Hylodesmum glutinosum (Muhl. ex Willld.) H. Ohashi & R.R. Mill Pointed-leaf Tick-trefoil Toxicodendron radicans (L.) Kuntze var. radicans Poison Ivy, Eastern Poison Ivy Toxicodendron pubescens P.Miller Poison Oak Toxicodendron vernix (L.) Kuntze Poison Sumac Cyperus compressus L. Poorland Flatsedge Quercus stellata Wangenheim Post Oak Krigia dandelion (L.) Nutt. Potato Dwarf-dandelion Danthonia spicata (L.) Beauv. ex Roemer & J.A. Schultes Poverty Oatgrass Aristida oligantha Michx. Prairie Three-awn Grass Sphenopholis obtusata (Michx.) Scribn. var. obtusata Prairie Wedgegrass Salix humilis Marshall Prairie Willow, Upland Willow Carex atlantica Bailey ssp. atlantica Prickly Bog Sedge, Atlantic Sedge Viola primulifolia L. Primrose-leaved Violet Aronia prunifolia (Marsh.) Rehder Purple Chokeberry Gamochaeta purpurea (L.) Cabrera Purple Cudweed, Purple Everlasting Agalinis purpurea (L.) Pennell Purple False Foxglove Platanthera peramoena (Gray) Gray Purple Fringeless Orchid, Purple Spire Orchid Eragrostis spectabilis (Pursh) Steud. Purple Lovegrass, Tumblegrass Passiflora incarnata L. Purple Passionflower, Maypop Triplasis purpurea (Walt.) Chapman var. purpurea Purple Sandgrass Purple Three-awn Grass, Arrow-feather, Three- Aristida purpurascens Poir. awn Grass Helianthus atrorubens L. Purple-disk Sunflower Epilobium coloratum Biehler Purple-leaved Willow-herb Symphyotrichum puniceum (L.) A.& D. Love var. puniceum Purple-stem Aster Tridens flavus (L.) A.S. Hitchc. var. flavus Purpletop, Tall Redtop Aplectrum hyemale (Muhl. ex Willd.) Torrey Puttyroot, Adam-and-Eve Platanthera lacera (Michx.) G.Don Ragged Fringed Orchid, Green Fringed Orchid Crotalaria sagittalis L. Rattlebox, Arrowhead Rattlebox Botrypus virginianus (L.) Holub Rattlesnake Fern Hieracium venosum L. Rattlesnake Weed Eryngium aquaticum L. var. aquaticum Rattlesnake-master, Marsh Eryngo Dichanthelium ravenelii (Scribn. & Merr.) Gould Ravenel's Panic Grass Aronia arbutifolia (L.) Ell. Red Chokeberry Carya ovalis (Wangenh.) Sarg. Red Hickory, Sweet Pignut Hickory Acer rubrum L. Red Maple Ipomoea coccinea L. Red Morning Glory, Scarlet Creeper not specified Morus rubra L. Red Mulberry Chelone obliqua L. Red Turtlehead Smilax walteri Pursh Red-berried Greenbrier, Coral Greenbrier Cyperus erythrorhizos Muhlenberg Red-root Flatsedge Scirpus pendulus Muhlenberg Reddish Bulrush Coleataenia stipitata (Nash) LeBlond Redtop Panic Grass Carex retroflexa Muhl. ex Willd. var. retroflexa Reflexed Sedge Carex virescens Muhl. ex Willd. Ribbed Sedge Potamogeton epihydrus Raf. Ribbonleaf Pondweed Leersia oryzoides (L.) Sw. Rice Cutgrass Collinsonia canadensis L. Richweed, Canada Horsebalm Linum striatum Walt. Ridged Yellow Flax Betula nigra L. River Birch, Red Birch Chasmanthium latifolium (Michx.) Yates River Oats Vitis riparia Michx. Riverbank Grape Polypodium virginianum complex Rockcap Fern Sabatia angularis (L.) Pursh Rose-pink Silphium asteriscus L. Rosin Weed Carex rosea Schk. ex Willd. Rosy Sedge Echinochloa muricata (Beauv.) Fern. var. muricata Rough Barnyard Grass Potentilla norvegica L. Rough Cinquefoil Cyperus retrofractus (L.) Torrey Rough Flatsedge Rough-stemmed Goldenrod, Wrinkle-leaf Solidago rugosa P. Mill. Goldenrod Rough-stemmed Goldenrod, Wrinkle-leaf Solidago rugosa P. Mill. var. aspera (Ait.) Fern. Goldenrod Gratiola virginiana L. Round-fruit Hedge-hyssop Dichanthelium sphaerocarpon (Ell.) Gould Round-fruited Panic Grass Round-headed Lespedeza, Round-headed Bush- Lespedeza capitata Michx. clover Desmodium rotundifolium DC. Round-leaf Tick-trefoil, Prostrate Tick-trefoil Hepatica americana (DC.) Ker-Gawl. Round-lobed Hepatica, Round-lobed Liverleaf Dichanthelium polyanthes (Schultes) Mohlenbrock Round-seed Panic Grass Amelanchier sanguinea (Pursh) DC. var. sanguinea Roundleaf Serviceberry Eupatorium rotundifolium L. Roundleaf Thoroughwort, Roundleaf Boneset Osmunda spectabilis Willd. Royal Fern Thalictrum thalictroides (L.) Eames & Boivin Rue-anemone Amelanchier spicata (Lam.) K. Koch Running Serviceberry, Dwarf Serviceberry Carex lurida Wahlenb. Sallow Sedge Agalinis maritima (Raf.) Raf. var. maritima Salt Marsh False Foxglove Pluchea odorata (L.) Cass. Salt Marsh Fleabane Sabatia stellaris Pursh Salt-marsh Pink, Sea-pink Spergularia salina J. & C. Presl Salt-marsh Sand Spurry, Lesser Sand Spurry Distichlis spicata (L.) Greene Saltgrass Bolboschoenus robustus (Pursh) Sojak Saltmarsh Bulrush Spartina alterniflora Loisel. Saltmarsh Cordgrass, Smooth Cordgrass Juncus gerardii Loisel. Saltmarsh Rush, Blackfoot Rush, Blackgrass Spartina patens (Ait.) Muhl. Saltmeadow Cordgrass, Saltmeadow Hay Salsola kali L. Saltwort not specified Rubus cuneifolius Pursh Sand Blackberry Hudsonia tomentosa Nutt. Sand Heather, Woolly Beach Heather Carya pallida (Ashe) Engl. & Graebn. Sand Hickory, Pale Hickory Quercus margarettae Ashe ex Small Sand Post Oak Linum intercursum Bickn. Sandplain Flax Sassafras albidum (Nutt.) Nees Sassafras Quercus coccinea Muenchhausen Scarlet Oak Philadelphus inodorus L. Scentless Mock Orange Limonium carolinianum (Walter) Britton Sea Lavender, Carolina Sea Lavender Panicum amarum Ell. Sea-beach Grass, Beach Panic Grass Polygonum glaucum Nutt. Sea-beach Knotweed Atriplex mucronata Raf. Sea-beach Orach Kosteletzkya pentacarpos (L.) Ledebour Seashore Mallow, Salt Marsh Mallow Solidago sempervirens L. Seaside Goldenrod Solidago sempervirens L. var. mexicana (L.) Fern. Seaside Goldenrod Borrichia frutescens (L.) DC. Seaside Oxeye, Sea Oxeye Euphorbia polygonifolia L. Seaside Spurge, Seaside Sandmat Juncus secundus Beauv. ex Poir. Secund Rush, Lopsided Rush Ludwigia alternifolia L. Seedbox, Alternate-leaved Seedbox Prunella vulgaris L. Self-heal, Heal-all Onoclea sensibilis L. Sensitive Fern, Bead Fern Aeschynomene virginica (L.) B.S.P. Sensitive Joint-vetch, Northern Joint-vetch Uvularia sessilifolia L. Sessile Bellwort, Wild-oats Sophronanthe pilosa (Michx.) Small Shaggy Hedge-hyssop Juncus acuminatus Michx. Sharp-fruited Rush Solidago arguta Ait. Sharp-leaved Goldenrod, Cut-leaved Goldenrod Carex tonsa (Fernald) Bicknell Shaved Sedge Cyperus haspan L. Sheathed Flatsedge Quercus imbricaria Michaux Shingle Oak Huperzia lucidula (Michx.) Trevisan Shining Clubmoss, Shining Firmoss Sphenopholis nitida (Biehler) Scribn. Shiny Wedgegrass Gymnopogon brevifolius Trin. Short-leaf Beard Grass Gratiola viscidula Pennell Short's Hedge-hyssop Pinus echinata Miller Shortleaf Pine Cerastium brachypodum (Engelm. ex Gray) B.L. Robinson Shortstalk Chickweed Galearis spectabilis (L.) Raf. Showy Orchis, Showy Orchid Cornus amomum P. Mill. Silky Dogwood Danthonia sericea Nutt. Silky Oatgrass Gamochaeta argyrinea Nesom Silver Cudweed Acer saccharinum L. Silver Maple Erianthus alopecuroides (L.) Ell. Silver Plumegrass, Woolly Plumegrass Solidago bicolor L. Silverrod, White Goldenrod Carex canescens L. var. disjuncta Fernald Silvery Sedge Deparia acrostichoides (Sw.) M. Kato Silvery Spleenwort Antennaria solitaria Rydb. Single-head Pussytoes Vulpia octoflora (Walt.) Rydb. Six-weeks Fescue Symplocarpus foetidus (L.) Salisbury ex W.P. C. Barton Skunk Cabbage Silene antirrhina L. Sleepy Catchfly Eurybia compacta Nesom Slender Aster Rhynchospora gracilenta Gray Slender Beaksedge Digitaria filiformis (L.) Koeler var. filiformis Slender Crabgrass Fimbristylis autumnalis (L.) R. & S. Slender Fimbry Slender Flat-top Goldenrod, Slender Fragrant Euthamia caroliniana (L.) Greene ex Porter & Britt. Goldenrod Cyperus bipartitus Torrey Slender Flatsedge, Shining Flatsedge Lespedeza virginica (L.) Britt. Slender Lespedeza, Slender Bush-clover Carex gracilescens Steudel Slender Loose-flowered Sedge Najas gracillima (A. Braun ex Engelm.) Magnus Slender Naiad, Bushy Naiad Slender Pigweed, Smooth Pigweed, Green Amaranthus hybridus L. Amaranth Lechea tenuifolia Michx. Slender Pinweed, Narrow-leaf Pinweed Chasmanthium laxum (L.) Yates Slender Spikegrass Eleocharis tenuis (Willd.) Schultes var. tenuis Slender Spikerush Slender Three-seeded Mercury, Short-stalk Acalypha gracilens Gray Copperleaf Cardamine angustata O. E. Schulz Slender Toothwort Carex digitalis Willd. Slender Woodland Sedge Carex digitalis Willd. var. digitalis Slender Woodland Sedge Oxalis florida Salisbury Slender Yellow Wood-sorrel Dichanthelium linearifolium (Scribn.) Gould Slim-leaf Panic Grass, Linear-leaf Panic Grass Ulmus rubra Muhl. Slippery Elm, Red Elm Bidens discoidea (Torr. & Gray) Britt. Small Beggar-ticks Arundinaria tecta (Walt.) Muhl. Small Cane, Switch Cane Platanthera clavellata (Michx.) Luer Small Green Wood Orchid Sesuvium maritimum (Walter) Britton, Stearns, & Poggenberg Small Sea-purslane, Slender Sea-purslane Oenothera perennis L. Small Sundrops, Little Sundrops Triodanis perfoliata (L.) Nieuwl. var. biflora (Ruiz & Pavon) Bradley Small Venus' Looking-glass Symphyotrichum racemosum (Ell.) Nesom var. racemosum Small White Aster Ipomoea lacunosa L. Small White Morning Glory Ageratina aromatica (L.) Spach Small White Snakeroot, Lesser Snakeroot Nemophila apylla (L.) Brummitt Small-flower Baby-blue-eyes Oenothera parviflora L. Small-flowered Evening-primrose Dichanthelium dichotomum (L.) Gould var. dichotomum Small-fruited Panic Grass Eleocharis microcarpa Torrey var. filiculmis Torrey Small-fruited Spikerush Rhynchospora microcephala (Britton) Britton ex Small Small-headed Bunched Beaksedge Dichanthelium ensifolium (Baldwin ex Elliott) Gould Small-leaved Panic Grass Solidago pinetorum Small Small's Goldenrod, Pineywoods Goldenrod Packera anonyma (Wood) W.A. Weber & A. Love Small's Ragwort Sanicula smallii Bickn. Small's Snakeroot, Small's Sanicle Myosotis laxa Lehm. Smaller Forget-me-not, Tufted Forget-me-not Cuscuta polygonorum Engelm. Smartweed Dodder Alnus serrulata (Ait.) Willd. Smooth Alder, Hazel Alder Viburnum dentatum L. var. lucidum Aiton Smooth Arrow-wood Smooth Beard-tongue, Eastern Smooth Beard- Penstemon laevigatus Aiton tongue Symphyotrichum laeve (L.) A. & D. Love var. laeve Smooth Blue Aster, Smooth Aster Bidens laevis (L.) B.S.P. Smooth Bur-marigold, Showy Bur-marigold Elephantopus nudatus Gray Smooth Elephant's-foot Boechera laevigata (Muhl. ex Willd.) Al-Shehbaz Smooth Rock Cress Amelanchier laevis Wieg. Smooth Serviceberry Smooth Small-leaf Tick-trefoil, Maryland Tick- Desmodium marilandicum (L.) DC. trefoil Rhus glabra L. Smooth Sumac Desmodium laevigatum (Nutt.) DC. Smooth Tick-trefoil Ilex laevigata (Pursh) Gray Smooth Winterberry Carex laevivaginata (Kukenth.) Mackenzie Smooth-sheathed Sedge Schoenoplectus tabernaemontani (Gmelin) Palla Soft-stem Bulrush Polygonatum biflorum (Walt.) Ell. Solomon's-seal Oxydendrum arboreum (L.) DC. Sourwood, Sorrel Tree Elymus glabriflorus (Vasey ex L.H. Dewey) Scribn. & C.R. Ball Southeastern Wild Rye Ophioglossum pycnostichum (Fernald) A. & D. Love Southern Adder's-tongue Triglochin striata Ruiz & Pavon Southern Arrowgrass, Three-ribbed Arrowgrass Morella cerifera (L.) Small Southern Bayberry, Wax-Myrtle Lycopodiella appressa (Chapman) Cranfill Southern Bog Clubmoss Typha domingensis Pers. Southern Cattail Malus angustifolia (Aiton) Michx. Southern Crabapple Digitaria ciliaris (Retz.) Koeler Southern Crabgrass Rubus trivialis Michx. Southern Dewberry Sceptridium biternatum (Savigny) Lyon Southern Grape Fern Southern Highbush Blueberry, Swamp Highbush Vaccinium formosum Andr. Blueberry Athyrium asplenioides (Michx.) A.A. Eaton Southern Lady Fern Carex lonchocarpa Willd. ex Sprengel Southern Long Sedge Najas guadalupensis (Spreng.) Magnus var. guadalupensis Southern Naiad, Common Naiad Quercus falcata Michaux Southern Red Oak, Spanish Oak Spiranthes lacera (Raf.) Raf. var. gracilis (Bigelow) Luer Southern Slender Ladies'-tresses Helenium flexuosum Raf. Southern Sneezeweed Listera australis Lindl. Southern Twayblade Alisma subcordatum Rafinesque Southern Water-plantain Carex glaucescens Elliott Southern Waxy Sedge Viburnum nudum L. Southern Wild Raisin, Possum-haw Zizaniopsis miliacea (Michx.) Doell & Aschers. Southern Wild Rice, Giant Cutgrass Oxalis dillenii Jacquin Southern Yellow Wood-sorrel Bidens bipinnata L. Spanish Needles Lindera benzoin (L.) Blume Spicebush Tephrosia spicata (Walt.) Torr. & Gray Spiked Hoary Pea, Red Hoary Pea Ceratophyllum echinatum A. Gray Spineless Hornwort Dryopteris carthusiana (Vill.) H.P. Fuchs Spinulose Wood Fern, Toothed Wood Fern Erianthus brevibarbis Michx. var. contortus (Ell.) D.B. Spiral-awned Plumegrass, Short-beard Ward Plumegrass Andropogon ternarius Michx. var. ternarius Splitbeard Bluestem, Silvery Bluestem Euphorbia maculata L. Spotted Spurge, Milk-purslane Hypericum punctatum Lam. Spotted St. John's-wort Chimaphila maculata (L.) Pursh Spotted Wintergreen, Striped Wintergreen Panicum dichotomiflorum Michx. var. dichotomiflorum Spreading Panic Grass, Fall Panic Grass Carex laxiculmis Schweinitz var. laxiculmis Spreading Sedge Luzula echinata (Small) F.J. Hermann Spreading Woodrush Spring Beauty, Virginia Spring Beauty, Eastern Claytonia virginica L. Spring Beauty Cardamine bulbosa (Schreber ex. Muhlenberg) Britton, Sterns & Poggenberg Spring Cress, Bulbous Bittercress Centrosema virginianum (L.) Benth. Spurred But-terfly Pea Eleocharis quadrangulata (Michaux) R. & S. Square-stem Spikerush Square-stemmed Monkeyflower, Allegheny Mimulus ringens L. var. ringens Monkeyflower Tetragonotheca helianthoides L. Squarehead, Pineland Nerveray Hypericum hypericoides (L.) Crantz ssp. hypericoides St. Andrew's Cross Hypericum hypericoides (L.) Crantz St. Andrew's-cross Hypericum crux-andreae (L.) Crantz St. Peter's-wort Lyonia mariana (L.) D. Don Staggerbush Rhus typhina L. Staghorn Sumac Carex stipata Muhl. ex Willd. var. stipata Stalk-grain Sedge, Awl-fruit Sedge Carex echinata Murray ssp. echinata Star Sedge, Little Prickly Sedge Silene stellata (L.) Ait. f. Starry Campion Dichanthelium depauperatum (Muhl.) Gould Starved Panic Grass Spiraea tomentosa L. Steeplebush, Hardhack Cornus stricta Lam. Stiff Dogwood, Swamp Dogwood Linum medium (Planch.) Britton var. texanum (Planch.) Fern. Stiff Yellow Flax, Common Yellow Flax Ionactis linariifolia (L.) Greene Stiff-leaved Aster Urtica dioica L. + Urtica gracilis Ait. Stinging Nettle not specified Carex straminea Willd. in Schk. Straw Sedge Cyperus strigosus L. Straw-colored Flatsedge Strawberry-bush, American Strawberry-bush, Euonymus americanus L. Heart's-a-bustin' Gentiana villosa L. Striped Gentian Celtis laevigata Willd. Sugarberry, Southern Hackberry Houstonia purpurea L. var. purpurea Summer Bluets Vitis aestivalis Michx. Summer Grape, Silverleaf Grape Lupinus perennis L. Sundial Lupine Rhododendron viscosum (L.) Torr. Swamp Azalea, Clammy Azale Echinochloa walteri (Pursh) Heller Swamp Barnyard Grass, Coast Cockspur Grass Quercus michauxii Nuttall Swamp Chestnut Oak, Basket Oak Populus heterophylla L. Swamp Cottonwood Cyrilla racemiflora L. Swamp Cyrilla, Ti-ti Rumex verticillatus L. Swamp Dock Swamp Loosestrife, Bog Loosestrife, Swamp Lysimachia terrestris (L.) B.S.P. Candles Decodon verticillatus (L.) Ell. Swamp Loosestrife, Water-willow Asclepias incarnata L. Swamp Milkweed Asclepias incarnata L. var. pulchra (Ehrh. ex Willd.) Pers. Swamp Milkweed Rosa palustris Marsh. Swamp Rose Nyssa biflora Walt. Swamp Tupelo, Swamp Black Gum Swamp Water-pennywort, Floating Marsh- Hydrocotyle ranunculoides L. f. pennywort Sphenopholis pensylvanica (L.) A.S. Hitchc. Swamp Wedgegrass Carex swanii (Fernald) Mackenzie Swan's Sedge Betula lenta L. var. lenta Sweet Birch, Black Birch Pseudognaphalium obtusifolium (L.) Hilliard & Burtt Sweet Everlasting, Catfoot, Rabbit Tobacco Solidago odora Ait. Sweet Goldenrod, Anise-scented Goldenrod Clethra alnifolia L. Sweet Pepperbush, Coastal White-alder Monotropsis odorata Schwein. ex Ell. var. odorata Sweet Pinesap Galium triflorum Michx. Sweet-scented Bedstraw Eutrochium purpureum (Linnaeus) E.E. Lamont var. Sweet-scented Joe-pye-weed, Sweet Joe-pye- purpureum weed, Purple Joe-pye-weed Liquidambar styraciflua L. Sweetgum Panicum virgatum L. Switchgrass Panicum virgatum L. var. virgatum Switchgrass Wolffiella gladiata (Hegelm.) Hegelm. Sword Bogmat, Mud-midget Platanus occidentalis L. Sycamore, American Sycamore Coreopsis tripteris L. Tall Coreopsis Coleataenia rigidula (Bosc ex Nees) LeBlond ssp. rigidula Tall Flat Panic Grass Solidago altissima L. var. altissima Tall Goldenrod Agrimonia gryposepala Wallr. Tall Hairy Agrimony Tall Lespedeza, Velvety Lespedeza, Tall Bush- Lespedeza stuevei Nutt. clover Scleria triglomerata Michaux Tall Nutrush Equisetum hyemale L. ssp. affine (Engelm.) Calder & R.L. Taylor Tall Scouring Rush Suaeda linearis (Ell.) Moq. Tall Sea-blite, Southern Sea-blite Taper-leaf Water Horehound, Stalked Water Lycopus rubellus Moench Horehound Agalinis obtusifolia Raf. Ten-lobe False Foxglove Callitriche terrestris Raf. Terrestrial Water-starwort Carex abscondita Mackenzie Thicket Sedge Anemone virginiana L. var. virginiana Thimbleweed, Tall Anemone Agalinis setacea (J.F. Gmel.) Raf. Threadleaf False Foxglove Bidens comosa (Gray) Wiegand Three-lobe Beggar-ticks Galium tinctorium (L.) Scop. Three-lobed Bedstraw Rudbeckia triloba L. var. triloba Three-lobed Coneflower, Brown-eyed Susan Eutrochium dubium (Willd. ex Poir.) E.E. Lamont Three-nerved Joe-pye-weed Dulichium arundinaceum (L.) Britton var. arundinaceum Three-way Sedge Lechea minor L. Thyme-leaf Pinweed Bidens aristosa (Michx.) Britt. Tickseed Sunflower not specified Amaranthus cannabinus (L.) J.D. Sauer Tidal-marsh Amaranth, Water-hemp Houstonia pusilla Schoepf Tiny Bluets Myosurus minimus L. Tiny Mousetail not specified Juncus bufonius L. Toad Rush Rotala ramosior (L.) Koehne Toothcup Sericocarpus asteroides (L.) B.S.P. Toothed White-top Aster Eupatorium torreyanum Short and Peter Torrey's Thoroughwort Epigaea repens L. Trailing Arbutus Lespedeza procumbens Michx. Trailing Lespedeza, Trailing Bush-clover Sagina decumbens (Ell.) Torrey & A. Gray ssp. decumbens Trailing Pearlwort Lonicera sempervirens L. Trumpet Honeysuckle, Coral Honeysuckle Campsis radicans (L.) Seem. ex Bureau Trumpet-creeper Liriodendron tulipifera L. Tulip-Poplar, Yellow Poplar, Tuliptree Lilium superbum L. Tu r k ' s - c a p L i l y Carex stricta Lam. Tussock Sedge, Upright Sedge Spiranthes vernalis Engelm. & Gray Twisted Ladies'-tresses, Spring Ladies'-tresses Eleocharis tortilis (Link) Schultes Twisted Spikerush Xyris torta J.M. Smith Twisted Yellow-eyed Grass Mitella diphylla L. Tw o - l e a v e d M i t e r w o r t Cyperus diandrus Torrey Umbrella Flatsedge Magnolia tripetala (L.) L. Umbrella Magnolia Cyperus lupulinus (Sprengel) Marcks ssp. lupulinus Upland Flatsedge Vernonia glauca (L.) Willd. Upland Ironweed, Broad-leaf Ironweed Vaccinium ×margarettiae Ashe (pro sp.) Vaccinium ×margarettiae Ashe (pro sp.) Vaccinium ×marianum S. Wats. (pro sp.) Vaccinium ×marianum S. Wats. (pro sp.) Dichanthelium commutatum (J.A. Schultes) Gould var. commutatum Variable Panic Grass Dichanthelium commutatum (J.A. Schultes) Gould Variable Panic Grass, Ashe's Panic Grass Dichanthelium scoparium (Lam.) Gould Velvet Panic Grass Desmodium viridiflorum (L.) DC. Velvet-leaf Tick-trefoil Venus' Looking-glass, Common Venus' Looking- Triodanis perfoliata (L.) Nieuwl. var. perfoliata glass Callitriche palustris L. Vernal Water-starwort Eupatorium pilosum Walt. Vervain Thoroughwort, Rough Boneset Oxalis violacea L. Violet Wood-sorrel Clematis virginiana L. Virgin’s-bower Lechea maritima Leggett ex B.S.P. var. virginica Hogdon Virginia Beach Pinweed Iris virginica L. Virginia Blue Flag, Southern Blue Flag Lycopus virginicus L. Virginia Bugleweed, Virginia Water Horehound Diodia virginiana L. Virginia Buttonweed Woodwardia virginica (L.) Sm. Virginia Chain Fern Commelina virginica L. Virginia Dayflower Tephrosia virginiana (L.) Pers. Virginia Goat's-rue Physalis virginiana P. Miller Virginia Ground-cherry Hexastylis virginica (L.) Small Virginia Heartleaf Persicaria virginiana (L.) Gaertn. Virginia Knotweed, Jumpseed Trillium pusillum Michx. var. virginianum Fern. Virginia Least Trillium, Virginia Dwarf Trillium Virginia Marsh St. John's-wort, Common Marsh Hypericum virginicum L. St. John's-wort Rhexia virginica L. Virginia Meadow Beauty Virginia Pepperweed, Virginia Peppergrass, Lepidium virginicum L. Common Peppergrass, Poor Man's Pepper Pinus virginiana Miller Virginia Pine, Scrub Pine Plantago virginica L. Virginia Plantain, Paleseed Plantain Endodeca serpentaria (L.) Raf. Virginia Snakeroot, Turpentine-root Virginia Three-seeded Mercury, Virginia Acalypha virginica L. Copperleaf Hydrophyllum virginianum L. Virginia Waterleaf, Eastern Waterleaf Elymus virginicus L. var. virginicus Virginia Wild Rye Linum virginianum L. Virginia Yellow Flax, Woodland Flax Parthenocissus quinquefolia (L.) Planch. Virginia-creeper Itea virginica L. Virginia-willow, Virginia Sweetspire wamp Rose-mallow, Eastern Rose-mallow, Hibiscus moscheutos L. Crimson-eyed Rose-mallow Lespedeza violacea (L.) Pers. Wand Lespedeza, Wand Bush-clover Panicum verrucosum Muhl. Warty Panic Grass Quercus nigra Linnaeus Water Oak Sium suave Walt. Water Parsnip Brasenia schreberi J. F. Gmel. Water Shield Drosera intermedia Hayne Water Sundew, Spoonleaf Sundew Cicuta maculata L. var. maculata Water-hemlock, Spotted Water-hemlock Samolus valerandi L. ssp. parviflorus (Raf.) Hulten Water-pimpernel, Brookweed Waterthread Pondweed, Common Snailseed Potamogeton diversifolius Raf. Pondweed Avenella flexuosa (Linnaeus) Drejer Wavy Hairgrass Symphyotrichum undulatum (L.) Nesom Wavy-leaved Aster Juncus debilis Gray Weak Rush Carex seorsa Howe in Gordinier & Howe Weak Stellate Sedge Fraxinus americana L. White Ash Geum canadense Jacquin White Avens Actaea pachypoda Ell. White Baneberry, Dolls'-eyes Leersia virginica Willd. White Grass, White Cutgrass, Virginia Cutgrass Asclepias variegata L. White Milkweed Quercus alba Linnaeus White Oak Ageratina altissima (L.) King & H.E. Robins. var. altissima White Snakeroot Eleocharis albida Torrey White Spikerush Eupatorium album L. var. album White Thoroughwort Chelone glabra L. White Turtlehead Verbena urticifolia L. White Vervain Nymphaea odorata Aiton ssp. odorata White Water-lily, Fragrant Water-lily Eurybia divaricata (L.) Nesom White Wood Aster Cyperus flavicomus Michaux White-edge Flatsedge Dichanthelium tenue (Muhl.) Freckmann & Lelong White-edged Panic Grass Carex debilis Michaux White-edged Sedge Smilax glauca Walt. White-leaf Greenbrier, Sawbrier Lysimachia quadrifolia L. Whorled Loosestrife Hydrocotyle verticillata Thunb. Whorled Marsh-pennywort Asclepias verticillata L. Whorled Milkweed Ruppia maritima L. Wigeon-grass, Ditch-grass Wild Azalea, Pinxterflower, Pinxterbloom Rhododendron periclymenoides (Michx.) Shinners Azalea Clinopodium vulgare L. Wild Basil Phaseolus polystachios (L.) BSP Wild Bean, Thicket Bean Aquilegia canadensis L. Wild Columbine, Eastern Red Columbine Cynoglossum virginianum L. var. virginianum Wild Comfrey Hydrangea arborescens L. Wild Hydrangea, Smooth Hydrangea Lactuca canadensis L. Wild Lettuce Allium canadense L. var. canadense Wild Onion, Meadow Onion Ipomoea pandurata (L.) G.F.W. Mey. Wild Potato-vine, Manroot, Man-of-the-earth Zizania aquatica L. var. aquatica Wild Rice Aralia nudicaulis L. Wild Sarsaparilla Chamaecrista nictitans (L.) Moench var. nictitans Wild Sensitive Plant, Sensitive Partridge-pea Fragaria virginiana Duchesne Wild Strawberry Dioscorea villosa L. Wild Yam Carex willdenowii Schk. ex Willd. Willdenow's Sedge Quercus phellos Linnaeus Willow Oak Wing-leaved Primrose-willow, Winged Water- Ludwigia decurrens Walter primrose Mimulus alatus Aiton Winged Monkeyflower Rhus copallinum L. Winged Sumac, Shining Sumac Agrostis hyemalis (Walt.) B.S.P. Winter Bentgrass, Ticklegrass Vitis vulpina L. Winter Grape, Frost Grape, Chicken Grape Ilex verticillata (L.) Gray Winterberry Panicum capillare L. ssp. capillare Witch Grass Hamamelis virginiana L. Witch Hazel Anemone quinquefolia L. var. quinquefolia Wood Anemone Laportea canadensis (L.) Weddell Wood Nettle Viola palmata L. var. palmata Wood Violet Agrimonia rostellata Wallr. Woodland Agrimony Poa sylvestris Gray Woodland Bluegrass Fragaria vesca L. var americana Porter Woodland Strawberry Helianthus divaricatus L. Woodland Sunflower Sarcocornia pacifica (Standley) A.J. Scott Woody Glasswort, Perennial Glasswort Scirpus cyperinus (L.) Kunth Woolgrass Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. acuminatum Woolly Panic Grass Packera tomentosa (Michx.) C. Jeffrey Woolly Ragwort Bartonia virginica (L.) BSP Yellow Bartonia, Yellow Screwstem Verbesina occidentalis (L.) Walt. Yellow Crownbeard Cyperus flavescens L. Yellow Flatsedge Agastache nepetoides (L.) Kuntze Yellow Giant Hyssop Gelsemium sempervirens (L.) St.-Hilaire Yellow Jessamine, Carolina Jessamine Yellow Nutsedge, Yellow Nutgrass, Wild Chufa, Cyperus esculentus L. var. leptostachyus Böckler Earth-almond not specified Passiflora lutea L. Yellow Passionflower Nuphar advena (Ait.) Ait.f. Yellow Pond-lily, Common Spatterddock Eleocharis flavescens (Poiret) Urban var. flavescens Yellow Spikerush, Pale Spikerush Erythronium americanum Ker-Gawl. ssp. americanum Yellow Trout Lily, American Trout Lily Baptisia tinctoria (L.) R. Br. ex Ait. f. Yellow Wild Indigo, Horsefly Weed Carex annectens (Bickn.) Bickn. Yellow-fuited Sedge Lancaster Northumberland Richmond Westmoreland Abutilon theophrasti Medik. Abutilon theophrasti Medik. Abutilon theophrasti Medik. Abutilon theophrasti Medik. Acalypha gracilens Gray Acalypha gracilens Gray Acalypha gracilens Gray Acalypha gracilens Gray Acalypha rhomboidea Raf. Acalypha rhomboidea Raf. Acalypha rhomboidea Raf. Acalypha rhomboidea Raf. Acalypha virginica L. Acanthospermum hispidum DC. Acer negundo L. var. negundo Acalypha virginica L. Acer negundo L. var. negundo Acer rubrum L. Acer platanoides L. Acer negundo L. var. negundo Acer platanoides L. Acer saccharinum L. Acer rubrum L. Acer rubrum L. Acer rubrum L. Achillea millefolium L. Acer saccharinum L. Acer saccharinum L. Acer saccharinum L. Aconitum uncinatum L. Achillea millefolium L. Achillea millefolium L. Agalinis maritima (Raf.) Raf. var. Achillea millefolium L. maritima Acorus calamus L. Acorus calamus L. Adiantum pedatum L. Agalinis obtusifolia Raf. Actaea pachypoda Ell. Actaea racemosa L. Agalinis maritima (Raf.) Raf. var. maritima Agalinis purpurea (L.) Pennell Adiantum pedatum L. Adiantum pedatum L. Agalinis purpurea (L.) Pennell Agrostis hyemalis (Walt.) B.S.P. Aeschynomene virginica (L.) B.S.P. Aegopodium podagraria L. Agrostis perennans (Walt.) Agalinis setacea (J.F. Gmel.) Raf. Tuckerman var. perennans Agalinis purpurea (L.) Pennell Agalinis purpurea (L.) Pennell Ageratina altissima (L.) King & H.E. Ailanthus altissima (P. Miller) Ageratina altissima (L.) King & H.E. Robins. var. altissima Swingle Robins. var. altissima Agalinis setacea (J.F. Gmel.) Raf. Ageratina aromatica (L.) Spach Aira caryophyllea L. Agrimonia gryposepala Wallr. Agastache nepetoides (L.) Kuntze Ageratina altissima (L.) King & H.E. Agrimonia pubescens Wallr. Aira elegans Willd. ex Kunth Agrimonia pubescens Wallr. Robins. var. altissima Agrostemma githago L. Aira praecox L. Agrostemma githago L. Agrimonia gryposepala Wallr. Agrostis gigantea Roth Ajuga reptans L. Agrostis gigantea Roth Agrimonia rostellata Wallr. Agrostis hyemalis (Walt.) B.S.P. Albizia julibrissin Durazz. Agrostis hyemalis (Walt.) B.S.P. Agrostemma githago L. Agrostis perennans (Walt.) Tuckerman var. perennans Alisma subcordatum Rafinesque Ailanthus altissima (P. Miller) Swingle Agrostis capillaris L. Ailanthus altissima (P. Miller) Swingle Allium vineale L. Aira caryophyllea L. Agrostis gigantea Roth Aira caryophyllea L. Alnus serrulata (Ait.) Willd. Aira elegans Willd. ex Kunth Agrostis hyemalis (Walt.) B.S.P. Amaranthus cannabinus (L.) J.D. Agrostis perennans (Walt.) Tuckerman Aira elegans Willd. ex Kunth Sauer Aira praecox L. var. perennans Albizia julibrissin Durazz. Amaranthus hybridus L. Albizia julibrissin Durazz. Ailanthus altissima (P. Miller) Swingle Alcea rosea L. Ambrosia artemisiifolia L. Alisma subcordatum Rafinesque Aira caryophyllea L. Amelanchier arborea (Michx. f.) Allium vineale L. Fernald Allium canadense L. var. canadense Ajuga chamaepitys (L.) Schreb. Alnus serrulata (Ait.) Willd. Amelanchier canadensis (L.) Medik. Allium vineale L. Albizia julibrissin Durazz. Amaranthus cannabinus (L.) J.D. Sauer Amelanchier laevis Wieg. Alnus serrulata (Ait.) Willd. Alisma subcordatum Rafinesque Amelanchier sanguinea (Pursh) DC. Alliaria petiolata (Bieberstein) Cavara Amaranthus hybridus L. var. sanguinea Alopecurus carolinianus Walt. & Grande Amaranthus spinosus L. Ammophila breviligulata Fern. Alopecurus pratensis L. Allium vineale L. Amaranthus cannabinus (L.) J.D. Ambrosia artemisiifolia L. Amorpha fruticosa L. Sauer Alnus serrulata (Ait.) Willd. Amelanchier arborea (Michx. f.) Fernald Amphicarpaea bracteata (L.) Fern. Amaranthus hybridus L. Alopecurus carolinianus Walt. Amelanchier canadensis (L.) Medik. Anagallis arvensis L. Ambrosia artemisiifolia L. Amaranthus albus L. Andropogon glomeratus (Walt.) Amaranthus cannabinus (L.) J.D. Amelanchier spicata (Lam.) K. Koch B.S.P. var. glomeratus Ambrosia trifida L. Sauer Amelanchier arborea (Michx. f.) Ammophila breviligulata Fern. Andropogon gyrans Ashe Fernald Amaranthus hybridus L. Andropogon ternarius Michx. var. Amphicarpaea bracteata (L.) Fern. ternarius Amelanchier canadensis (L.) Medik. Ambrosia artemisiifolia L. Andropogon virginicus L. var. Anagallis arvensis L. virginicus Amelanchier obovalis (Michx.) Ashe Ambrosia trifida L. Andropogon glomeratus (Walt.) B.S.P. Anemone quinquefolia L. var. Amelanchier arborea (Michx. f.) var. glomeratus quinquefolia Ammannia latifolia L. Fernald Andropogon ternarius Michx. var. ternarius Anoda cristata (L.) Schlecht. Ammophila breviligulata Fern. Amelanchier canadensis (L.) Medik. Andropogon virginicus L. var. Antennaria plantaginifolia (L.) virginicus Richards. Ampelopsis cordata Michx. Ammophila breviligulata Fern. Anemone quinquefolia L. var. quinquefolia Anthemis arvensis L. Anagallis arvensis L. Amorpha fruticosa L. Anthoxanthum odoratum L. ssp. Andropogon glomeratus (Walt.) B.S.P. Ampelopsis brevipedunculata Anemone virginiana L. var. virginiana odoratum var. glomeratus (Maxim.) Trautv. Andropogon ternarius Michx. var. Angelica venenosa (Greenway) Fern. Apios americana Medik. ternarius Anagallis arvensis L. Antennaria plantaginifolia (L.) Andropogon virginicus L. var. Andropogon glomeratus (Walt.) B.S.P. Richards. Apocynum cannabinum L. virginicus var. glomeratus Andropogon ternarius Michx. var. Antennaria solitaria Rydb. Aquilegia canadensis L. Anemone virginiana L. var. virginiana ternarius Arabidopsis thaliana (Linnaeus) Andropogon virginicus L. var. Anthemis arvensis L. Heynhold Angelica venenosa (Greenway) Fern. virginicus Anthoxanthum aristatum Boiss. Aralia nudicaulis L. Anoda cristata (L.) Schlecht. Anemone virginiana L. var. virginiana Anthoxanthum odoratum L. ssp. Antennaria parlinii Fern. ssp. fallax Antennaria plantaginifolia (L.) odoratum Aralia spinosa L. (Greene) Bayer & Stebbins Richards. Arenaria serpyllifolia L. var. Antennaria plantaginifolia (L.) Aphanes australis Rydberg serpyllifolia Richards. Anthemis arvensis L. Arisaema triphyllum (L.) Schott ssp. Anthoxanthum odoratum L. ssp. Apios americana Medik. triphyllum Anthemis arvensis L. odoratum Aplectrum hyemale (Muhl. ex Willd.) Aristida dichotoma Michx. var. Anthoxanthum odoratum L. ssp. Torrey dichotoma odoratum Aphanes australis Rydberg Apocynum cannabinum L. Aristida oligantha Michx. Aphanes australis Rydberg Apios americana Medik. Aplectrum hyemale (Muhl. ex Willd.) Aquilegia canadensis L. Aristida purpurascens Poir. Apios americana Medik. Torrey Arabidopsis thaliana (Linnaeus) Aplectrum hyemale (Muhl. ex Willd.) Heynhold Aronia arbutifolia (L.) Ell. Torrey Apocynum cannabinum L. Aralia nudicaulis L. Artemisia stelleriana Bess. Apocynum cannabinum L. Aquilegia canadensis L. Arabidopsis lyrata (L.) O'Kane & Al- Aralia spinosa L. Artemisia vulgaris L. var. vulgaris Aquilegia canadensis L. Shehbaz ssp. lyrata Arenaria serpyllifolia L. var. Arthraxon hispidus (Thunb.) Makino Arabidopsis thaliana (Linnaeus) Arabidopsis thaliana (Linnaeus) serpyllifolia var. hispidus Heynhold Heynhold Arisaema triphyllum (L.) Schott ssp. triphyllum Arundinaria tecta (Walt.) Muhl. Aralia spinosa L. Aralia spinosa L. Aristida dichotoma Michx. var. Arenaria serpyllifolia L. var. dichotoma Asclepias amplexicaulis J.E.Smith serpyllifolia Arctium minus Bernh. Arisaema triphyllum (L.) Schott ssp. Arenaria serpyllifolia L. var. Aristida oligantha Michx. Asclepias incarnata L. triphyllum serpyllifolia Asclepias incarnata L. var. pulchra Aristida dichotoma Michx. var. Aristida purpurascens Poir. (Ehrh. ex Willd.) Pers. dichotoma Arisaema dracontium (L.) Schott Arisaema triphyllum (L.) Schott ssp. Arnica acaulis (Walt.) B.S.P. Asclepias syriaca L. Aristida oligantha Michx. triphyllum Arnoglossum atriplicifolium (L.) H.E. Aristida dichotoma Michx. var. Robins. Asclepias tuberosa L. var. tuberosa Aronia arbutifolia (L.) Ell. dichotoma Aronia arbutifolia (L.) Ell. Asclepias verticillata L. Aronia melanocarpa (Michx.) Elliott Aristida oligantha Michx. Artemisia ludoviciana Nutt. ssp. Aronia prunifolia (Marsh.) Rehder Asimina triloba (L.) Dunal ludoviciana Aristida purpurascens Poir. Arrhenatherum elatius (L.) J. & K. Presl var. bulbosum (Willd.) Spenner Asparagus officinalis L. Artemisia vulgaris L. var. vulgaris Aronia arbutifolia (L.) Ell. Arrhenatherum elatius (L.) J. & K. Presl var. elatius Asplenium platyneuron (L.) B.S.P. Arundinaria tecta (Walt.) Muhl. Aronia melanocarpa (Michx.) Elliott Athyrium asplenioides (Michx.) A.A. Arrhenatherum elatius (L.) J. & K. Artemisia vulgaris L. var. vulgaris Eaton Asclepias amplexicaulis J.E.Smith Presl var. bulbosum (Willd.) Spenner Arthraxon hispidus (Thunb.) Makino Arrhenatherum elatius (L.) J. & K. var. hispidus Atriplex patula L. Asclepias incarnata L. Presl var. elatius Asclepias incarnata L. var. pulchra Asarum canadense L. Avena sativa L. (Ehrh. ex Willd.) Pers. Artemisia annua L. Asclepias amplexicaulis J.E.Smith Baccharis halimifolia L. Asclepias syriaca L. Artemisia vulgaris L. var. vulgaris Baptisia tinctoria (L.) R. Br. ex Ait. Arthraxon hispidus (Thunb.) Makino Asclepias incarnata L. f. Asclepias tuberosa L. var. tuberosa var. hispidus Asclepias incarnata L. var. pulchra (Ehrh. ex Willd.) Pers. Barbarea verna (Miller) Ascherson Asclepias variegata L. Asarum canadense L. Asclepias syriaca L. Betula nigra L. Asclepias verticillata L. Asclepias incarnata L. Asclepias incarnata L. var. pulchra Asclepias tuberosa L. var. tuberosa Bidens aristosa (Michx.) Britt. Asimina triloba (L.) Dunal (Ehrh. ex Willd.) Pers. Asclepias variegata L. Bidens bipinnata L. Asparagus officinalis L. Asclepias syriaca L. Bidens discoidea (Torr. & Gray) Asclepias verticillata L. Britt. Asplenium platyneuron (L.) B.S.P. Asclepias tuberosa L. var. tuberosa Astragalus canadensis L. var. Asimina triloba (L.) Dunal Bidens frondosa L. canadensis Asclepias verticillata L. Athyrium asplenioides (Michx.) A.A. Asparagus officinalis L. Bidens laevis (L.) B.S.P. Eaton Asimina triloba (L.) Dunal Asplenium platyneuron (L.) B.S.P. Boehmeria cylindrica (L.) Sw. Aureolaria virginica (L.) Pennell Asparagus officinalis L. Athyrium asplenioides (Michx.) A.A. Bolboschoenus robustus (Pursh) Eaton Sojak Avena sativa L. Asplenium platyneuron (L.) B.S.P. Athyrium asplenioides (Michx.) A.A. Atriplex mucronata Raf. Botrypus virginianus (L.) Holub Baccharis halimifolia L. Eaton Atriplex prostrata Boucher ex DC. Brassica rapa Linnaeus Baptisia tinctoria (L.) R. Br. ex Ait. f. Atriplex prostrata Boucher ex DC. Aureolaria virginica (L.) Pennell Bromus inermis Leyss. Barbarea verna (Miller) Ascherson Aureolaria virginica (L.) Pennell Baccharis halimifolia L. Bromus japonicus Thunb. ex Murr. Barbarea vulgaris R. Brown Avenella flexuosa (Linnaeus) Drejer Baptisia tinctoria (L.) R. Br. ex Ait. f. Bromus racemosus L. Berberis thunbergii DC Baccharis halimifolia L. Broussonetia papyrifera (L.) L'Her. Barbarea verna (Miller) Ascherson ex Vent. Betula nigra L. Baptisia tinctoria (L.) R. Br. ex Ait. f. Buglossoides arvensis (L.) I.M. Barbarea vulgaris R. Brown Johnston var. arvensis Bidens aristosa (Michx.) Britt. Barbarea verna (Miller) Ascherson Bulbostylis capillaris (L.) Clarke in Bartonia virginica (L.) BSP Hook. Bidens bipinnata L. Barbarea vulgaris R. Brown Bellis perennis L. Cakile edentula (Bigelow) Hooker Bidens cernua L. Bartonia virginica (L.) BSP Calamagrostis coarctata (Torrey) Betula nigra L. Eaton Bidens frondosa L. Berberis thunbergii DC Bidens aristosa (Michx.) Britt. Callicarpa americana L. Bidens laevis (L.) B.S.P. Betula lenta L. var. lenta Callitriche heterophylla Pursh ssp. Bidens bipinnata L. heterophylla Bignonia capreolata L. Betula nigra L. Bidens discoidea (Torr. & Gray) Britt. Calystegia sepium (L.) R. Br. Boehmeria cylindrica (L.) Sw. Bidens aristosa (Michx.) Britt. Campsis radicans (L.) Seem. ex Bidens frondosa L. Bureau Bolboschoenus robustus (Pursh) Sojak Bidens bipinnata L. Cardamine bulbosa (Schreber ex. Muhlenberg) Britton, Sterns & Bidens laevis (L.) B.S.P. Poggenberg Botrypus virginianus (L.) Holub Bidens comosa (Gray) Wiegand Bignonia capreolata L. Cardamine hirsuta Linnaeus Brassica rapa Linnaeus Bidens discoidea (Torr. & Gray) Britt. Bromus hordeaceus L. ssp. Boehmeria cylindrica (L.) Sw. Carex abscondita Mackenzie hordeaceus Bidens frondosa L. Bolboschoenus robustus (Pursh) Sojak Carex alata Torrey Bromus inermis Leyss. Bidens laevis (L.) B.S.P. Boechera laevigata (Muhl. ex Willd.) Borrichia frutescens (L.) DC. Carex albicans complex Bromus japonicus Thunb. ex Murr. Al-Shehbaz Botrypus virginianus (L.) Holub Carex albolutescens Schweinitz Bromus racemosus L. Boehmeria cylindrica (L.) Sw. Broussonetia papyrifera (L.) L'Her. ex Brasenia schreberi J. F. Gmel. Carex arenaria L. Vent. Bolboschoenus robustus (Pursh) Sojak Carex atlantica Bailey ssp. Buglossoides arvensis (L.) I.M. Brassica rapa Linnaeus capillacea (Bailey) Rezn. Johnston var. arvensis Botrypus virginianus (L.) Holub Bulbostylis capillaris (L.) Clarke in Brachyelytrum erectum (Schreb. ex Bromus japonicus Thunb. ex Murr. Carex cephalophora Muhl. ex Willd. Hook. Spreng.) Beauv. Callitriche heterophylla Pursh ssp. Bromus racemosus L. Carex collinsii Nuttall heterophylla Brassica rapa Linnaeus Bromus hordeaceus L. ssp. Bromus sterilis L. Carex comosa Boott Callitriche palustris L. hordeaceus Broussonetia papyrifera (L.) L'Her. ex Vent. Carex crebriflora Wiegand Caltha palustris L. Bromus japonicus Thunb. ex Murr. Bulbostylis capillaris (L.) Clarke in Hook. Carex crinita Lam. var. crinita Calystegia sepium (L.) R. Br. Bromus pubescens Sprengel Camelina microcarpa Andrzejowski Cakile edentula (Bigelow) Hooker Carex debilis Michaux ex. A. P. DeCandolle Bromus racemosus L. Calamagrostis coarctata (Torrey) Campsis radicans (L.) Seem. ex Eaton Carex digitalis Willd. Bureau Bromus tectorum L. Carex echinata Murray ssp. Capsella bursa-pastoris (Linnaeus) Broussonetia papyrifera (L.) L'Her. ex Callicarpa americana L. echinata Medicus Vent. Cardamine bulbosa (Schreber ex. Callitriche heterophylla Pursh ssp. Muhlenberg) Britton, Sterns & Buglossoides arvensis (L.) I.M. heterophylla Carex festucacea Schk. ex Willd. Poggenberg Johnston var. arvensis Cardamine concatenata (Michaux) O. Bulbostylis capillaris (L.) Clarke in Caltha palustris L. Carex gracilescens Steudel Schwarz Hook. Calystegia sepium (L.) R. Br. Carex granularis Muhl. ex Willd. Cardamine hirsuta Linnaeus Buxus sempervirens L. Campsis radicans (L.) Seem. ex Cardamine pensylvanica Muhlenberg Bureau Carex hirsutella Mackenzie ex Willdenow Cakile edentula (Bigelow) Hooker Capsella bursa-pastoris (Linnaeus) Carex intumescens Rudge var. Medicus intumescens Carex alata Torrey Cakile maritima Scopoli Cardamine bulbosa (Schreber ex. Muhlenberg) Britton, Sterns & Carex laevivaginata (Kukenth.) Calamagrostis coarctata (Torrey) Poggenberg Mackenzie Carex albicans complex Eaton Callitriche heterophylla Pursh ssp. Cardamine hirsuta Linnaeus Carex laxiflora Lam. Carex albolutescens Schweinitz heterophylla Cardamine pensylvanica Muhlenberg ex Willdenow Carex leptalea Wahlenb. Carex amphibola complex Callitriche terrestris Raf. Cardamine pratensis Linnaeus Carex lurida Wahlenb. Carex amphibola Steudel Calystegia sepium (L.) R. Br. Camelina microcarpa Andrzejowski Carex alata Torrey Carex oligocarpa Willd. Carex atlantica Bailey ssp. atlantica ex. A. P. DeCandolle Carex retroflexa Muhl. ex Willd. Carex canescens L. var. disjuncta Carex albicans complex var. retroflexa Fernald Camelina sativa (Linnaeus) Crantz Carex scoparia Schk. ex Willd. var. Campsis radicans (L.) Seem. ex Carex albolutescens Schweinitz scoparia Carex caroliniana Schweinitz Bureau Carex seorsa Howe in Gordinier & Capsella bursa-pastoris (Linnaeus) Carex amphibola complex Howe Carex cephalophora Muhl. ex Willd. Medicus Carex stipata Muhl. ex Willd. var. Carex amphibola Steudel stipata Carex comosa Boott Cardamine angustata O. E. Schulz Cardamine bulbosa (Schreber ex. Muhlenberg) Britton, Sterns & Carex atlantica Bailey ssp. atlantica Carex striatula Michaux Carex complanata Torr. & Hook. Poggenberg Carex atlantica Bailey ssp. capillacea Cardamine concatenata (Michaux) O. (Bailey) Rezn. Carex styloflexa Buckley Carex crebriflora Wiegand Schwarz Carex blanda Dewey Carex tonsa (Fernald) Bicknell Carex crinita Lam. var. crinita Cardamine hirsuta Linnaeus Carex bromoides Schk. ex Willd. ssp. Carex tribuloides Wahlenb. var. Cardamine pensylvanica Muhlenberg bromoides tribuloides Carex debilis Michaux ex Willdenow Carex caroliniana Schweinitz Carex virescens Muhl. ex Willd. Carex digitalis Willd. Carduus nutans L. Carex cephalophora Muhl. ex Willd. Carex vulpinoidea Michaux Carex festucacea Schk. ex Willd. Carex abscondita Mackenzie Carex collinsii Nuttall Carpinus caroliniana Walt. Carex frankii Kunth Carex alata Torrey Carex comosa Boott Carya glabra (P. Miller) Sweet Carex gigantea Rudge Carex albicans complex Carex crebriflora Wiegand Carya ovalis (Wangenh.) Sarg. Carex gracilescens Steudel Carex albolutescens Schweinitz Carya pallida (Ashe) Engl. & Carex intumescens Rudge var. Carex crinita Lam. var. crinita Graebn. intumescens Carex amphibola complex Carex laevivaginata (Kukenth.) Carex debilis Michaux Carya tomentosa (Poir.) Nutt. Mackenzie Carex annectens (Bickn.) Bickn. Castanea dentata (Marshall) Carex laxiculmis Schweinitz var. Carex atlantica Bailey ssp. capillacea Carex digitalis Willd. Borkhausen laxiculmis (Bailey) Rezn. Carex digitalis Willd. var. digitalis Castanea pumila (Linnaeus) P. Miller Carex lurida Wahlenb. Carex blanda Dewey Carex canescens L. var. disjuncta Carex divisa Hudson Celtis occidentalis L. Carex muehlenbergii Schk. ex Willd. Fernald Carex festucacea Schk. ex Willd. Cenchrus tribuloides L. Carex nigromarginata Schweinitz Carex cephalophora Muhl. ex Willd. Carex glaucescens Elliott Centaurea cyanus L. Carex platyphylla Carey Carex collinsii Nuttall Carex retroflexa Muhl. ex Willd. var. Carex granularis Muhl. ex Willd. Cephalanthus occidentalis L. retroflexa Carex comosa Boott Cerastium brachypodum (Engelm. Carex gravida Bailey ex Gray) B.L. Robinson Carex rosea Schk. ex Willd. Carex crinita Lam. var. crinita Cerastium fontanum Baumg. ssp. Carex scoparia Schk. ex Willd. var. Carex hirsutella Mackenzie vulgare (Hartman) Greuter & Burdet scoparia Carex debilis Michaux Carex intumescens Rudge var. Carex seorsa Howe in Gordinier & intumescens Cerastium glomeratum Thuill. Howe Carex digitalis Willd. Carex laevivaginata (Kukenth.) Mackenzie Cerastium nutans Raf. var. nutans Carex striatula Michaux Carex digitalis Willd. var. digitalis Carex laxiculmis Schweinitz var. Chamaecrista fasciculata (Michx.) laxiculmis Greene var. fasciculata Carex stricta Lam. Carex festucacea Schk. ex Willd. Chamaecrista nictitans (L.) Moench Carex leptalea Wahlenb. var. nictitans Carex tonsa (Fernald) Bicknell Carex granularis Muhl. ex Willd. Carex lonchocarpa Willd. ex Sprengel Chasmanthium laxum (L.) Yates Carex vulpinoidea Michaux Carex grayi Carey Carex lupulina Willd. Chenopodium album L. Carpinus caroliniana Walt. Carex hirsutella Mackenzie Carex lurida Wahlenb. Chimaphila maculata (L.) Pursh Carya glabra (P. Miller) Sweet Carex hormathodes Fernald Carex intumescens Rudge var. Carex muehlenbergii Schk. ex Willd. Chionanthus virginicus L. Carya illinoinensis (Wangenh.) K. Koch intumescens Carex nigromarginata Schweinitz Chondrilla juncea L. Carya pallida (Ashe) Engl. & Graebn. Carex kraliana Naczi & Bryson Carex normalis Mackenzie Chrysopsis mariana (L.) Ell. Carya tomentosa (Poir.) Nutt. Carex lacustris Willdenow Castanea dentata (Marshall) Carex laevivaginata (Kukenth.) Carex prasina Wahlenb. Cichorium intybus L. Borkhausen Mackenzie Carex laxiculmis Schweinitz var. Carex rosea Schk. ex Willd. Cicuta maculata L. var. maculata Castanea pumila (Linnaeus) P. Miller laxiculmis Carex seorsa Howe in Gordinier & Howe Cinna arundinacea L. Celtis occidentalis L. Carex laxiflora Lam. Circaea canadensis (L.) Hill ssp. Carex striatula Michaux canadensis Cenchrus tribuloides L. Carex leptalea Wahlenb. Cirsium discolor (Muhl. ex Willd.) Carex swanii (Fernald) Mackenzie Spreng. Centaurea cyanus L. Carex lonchocarpa Willd. ex Sprengel Carex tonsa (Fernald) Bicknell Claytonia virginica L. Centrosema virginianum (L.) Benth. Carex longii Mackenzie Carex tribuloides Wahlenb. var. tribuloides Clematis terniflora DC. Cephalanthus occidentalis L. Carex lupulina Willd. Carex vulpinoidea Michaux Clethra alnifolia L. Cerastium brachypetalum Pers. Carex lurida Wahlenb. Cerastium brachypodum (Engelm. ex Carpinus caroliniana Walt. Clinopodium calamintha (L.) Stace Gray) B.L. Robinson Carex muehlenbergii Schk. ex Willd. Coleataenia anceps (Michx.) Soreng Carya cordiformis (Wangenh.) K. Koch ssp. anceps Cerastium glomeratum Thuill. Carex nigromarginata Schweinitz Coleataenia rigidula (Bosc ex Nees) Carya glabra (P. Miller) Sweet LeBlond ssp. rigidula Cerastium semidecandrum L. Carex platyphylla Carey Coleataenia stipitata (Nash) Carya pallida (Ashe) Engl. & Graebn. LeBlond Ceratophyllum demersum L. Carex prasina Wahlenb. Carex retroflexa Muhl. ex Willd. var. Carya tomentosa (Poir.) Nutt. Commelina communis L. Cercis canadensis L. var. canadensis retroflexa Castanea dentata (Marshall) Chaerophyllum tainturieri Hook. var. Borkhausen Commelina virginica L. tainturieri Carex rosea Schk. ex Willd. Chamaecrista fasciculata (Michx.) Carex seorsa Howe in Gordinier & Castanea pumila (Linnaeus) P. Miller Conoclinium coelestinum (L.) DC. Greene var. fasciculata Howe Catalpa speciosa (Warder) Warder ex Chamaecrista fasciculata (L.) Moench Engelm. Convallaria majalis L. var. macrosperma (Fernald) C. F. Reed Carex straminea Willd. in Schk. Chamaecrista nictitans (L.) Moench Ceanothus americanus L. Convolvulus arvensis L. var. nictitans Carex striatula Michaux Conyza canadensis (L.) Cronq. var. Chasmanthium latifolium (Michx.) Celtis occidentalis L. canadensis Yates Carex styloflexa Buckley Corallorhiza odontorhiza (Willd.) Cenchrus tribuloides L. Nuttall var. odontorhiza Chasmanthium laxum (L.) Yates Carex swanii (Fernald) Mackenzie Coreopsis tinctoria Nutt. var. Centaurea benedicta (L.) L. tinctoria Chelone glabra L. Carex tonsa (Fernald) Bicknell Carex tribuloides Wahlenb. var. Centaurea cyanus L. Cornus alternifolia L.f. Chelone obliqua L. tribuloides Centaurea stoebe L. ssp. micranthos (S.G. Gmelin ex Gugler) Hayek Cornus amomum P. Mill. Chenopodium album L. Carex virescens Muhl. ex Willd. Centrosema virginianum (L.) Benth. Cornus florida L. Chimaphila maculata (L.) Pursh Carex vulpinoidea Michaux Crocanthemum canadense (L.) Chimaphila umbellata (L.) W. Barton Cephalanthus occidentalis L. Britton ssp. cisatlantica (Blake) Hulten Carex willdenowii Schk. ex Willd. Cerastium fontanum Baumg. ssp. Croton glandulosus L. var. vulgare (Hartman) Greuter & Burdet septentrionalis Muell.-Arg. Chionanthus virginicus L. Carpinus caroliniana Walt. Cerastium glomeratum Thuill. Cuscuta compacta Jussieu ex Choisy Chondrilla juncea L. Carya cordiformis (Wangenh.) K. Koch Cuscuta gronovii Willd. ex Roem. & Cerastium nutans Raf. var. nutans Schult. Chrysopsis mariana (L.) Ell. Carya glabra (P. Miller) Sweet Chrysosplenium americanum Schwein. Ceratophyllum demersum L. Cuscuta pentagona Engelm. ex Hook. Carya ovalis (Wangenh.) Sarg. Cynodon dactylon (L.) Pers. var. Cercis canadensis L. var. canadensis dactylon Cichorium intybus L. Carya pallida (Ashe) Engl. & Graebn. Chaerophyllum tainturieri Hook. var. tainturieri Cyperus bipartitus Torrey Cicuta maculata L. var. maculata Carya tomentosa (Poir.) Nutt. Chamaecrista fasciculata (Michx.) Circaea canadensis (L.) Hill ssp. Castanea dentata (Marshall) Greene var. fasciculata Cyperus echinatus (L.) Wood canadensis Borkhausen Chamaecrista nictitans (L.) Moench Cyperus esculentus L. var. Cirsium discolor (Muhl. ex Willd.) var. nictitans leptostachyus Böckler Spreng. Castanea pumila (Linnaeus) P. Miller Chasmanthium laxum (L.) Yates Cyperus filicinus Vahl. Cirsium vulgare (Savi) Ten. Caulophyllum thalictroides (L.) Michx. Chelone glabra L. Cyperus grayi Torrey Claytonia virginica L. Celastrus scandens L. Chenopodium album L. Cyperus iria L. Clematis terniflora DC. Celtis laevigata Willd. Chimaphila maculata (L.) Pursh Cyperus lupulinus complex Clethra alnifolia L. Celtis occidentalis L. Chionanthus virginicus L. Cyperus odoratus L. var. odoratus Clinopodium vulgare L. Cenchrus tribuloides L. Chrysopsis mariana (L.) Ell. Cyperus pseudovegetus Steudel Clitoria mariana L. var. mariana Centaurea benedicta (L.) L. Chrysosplenium americanum Schwein. Coleataenia anceps (Michx.) Soreng ex Hook. Cyperus retrorsus Chapman ssp. anceps Centaurea cyanus L. Coleataenia rigidula (Bosc ex Nees) Cichorium intybus L. Cyperus strigosus L. LeBlond ssp. rigidula Centrosema virginianum (L.) Benth. Cicuta maculata L. var. maculata Cypripedium acaule Aiton Collinsonia canadensis L. Cephalanthus occidentalis L. Cytisus scoparius (L.) Link var. Comandra umbellata (L.) Nuttall var. Cerastium brachypodum (Engelm. ex Cinna arundinacea L. scoparius umbellata Gray) B.L. Robinson Circaea canadensis (L.) Hill ssp. Dactylis glomerata L. ssp. Cerastium fontanum Baumg. ssp. canadensis glomerata Commelina communis L. vulgare (Hartman) Greuter & Burdet Cirsium arvense (L.) Scop. Danthonia sericea Nutt. Commelina virginica L. Cerastium glomeratum Thuill. Cirsium arvense (L.) Scop. var. arvense Datura stramonium L. Conoclinium coelestinum (L.) DC. Cerastium semidecandrum L. Cirsium discolor (Muhl. ex Willd.) Spreng. Daucus carota L. Consolida ajacis (L.) Schur. Ceratophyllum demersum L. Conyza canadensis (L.) Cronq. var. Cirsium pumilum (Nutt.) Spreng. Decodon verticillatus (L.) Ell. canadensis Ceratophyllum echinatum A. Gray Dendrolycopodium obscurum (L.) A. Cirsium vulgare (Savi) Ten. Haines Coreopsis lanceolata L. Cercis canadensis L. var. canadensis Dennstaedtia punctilobula (Michx.) Chaerophyllum tainturieri Hook. var. Claytonia virginica L. T. M o o r e Cornus amomum P. Mill. tainturieri Chamaecrista fasciculata (Michx.) Clematis terniflora DC. Desmodium canescens (L.) DC. Cornus florida L. Greene var. fasciculata Desmodium ciliare (Muhl. ex Willd.) Chamaecrista nictitans (L.) Moench Clematis virginiana L. DC. Corylus americana Walt. var. nictitans Clethra alnifolia L. Desmodium glabellum (Michx.) DC. Crotalaria sagittalis L. Chasmanthium laxum (L.) Yates Desmodium paniculatum (L.) DC. Croton glandulosus L. var. Clinopodium calamintha (L.) Stace var. paniculatum septentrionalis Muell.-Arg. Chenopodium album L. Clinopodium vulgare L. Desmodium rotundifolium DC. Cryptotaenia canadensis (L.) DC. Chimaphila maculata (L.) Pursh Chimaphila umbellata (L.) W. Barton Clitoria mariana L. var. mariana Dianthus armeria L. Cunila origanoides (L.) Britt. ssp. cisatlantica (Blake) Hulten Coleataenia anceps (Michx.) Soreng Dichanthelium acuminatum ssp. anceps complex Cuscuta campestris Yuncker Chionanthus virginicus L. Coleataenia rigidula (Bosc ex Nees) Dichanthelium boscii (Poir.) Gould & LeBlond ssp. rigidula C.A. Clark Cuscuta compacta Jussieu ex Choisy Chondrilla juncea L. Comandra umbellata (L.) Nuttall var. Dichanthelium clandestinum (L.) Cuscuta gronovii Willd. ex Roem. & umbellata Gould Schult. Chrysopsis mariana (L.) Ell. Dichanthelium commutatum (J.A. Commelina communis L. Schultes) Gould Cuscuta polygonorum Engelm. Cichorium intybus L. Dichanthelium commutatum (J.A. Schultes) Gould var. ashei (Pearson ex Cynodon dactylon (L.) Pers. var. Commelina virginica L. Ashe) Mohlenbrock dactylon Cicuta maculata L. var. maculata Dichanthelium dichotomum Cynoglossum virginianum L. var. Conoclinium coelestinum (L.) DC. complex virginianum Cinna arundinacea L. Dichanthelium microcarpon (Muhl. Circaea canadensis (L.) Hill ssp. Consolida ajacis (L.) Schur. ex Elliott) Mohlenbrock Cyperus echinatus (L.) Wood canadensis Dichanthelium oligosanthes (J.A. Cyperus esculentus L. var. Convolvulus arvensis L. Schultes) Gould var. oligosanthes leptostachyus Böckler Cirsium arvense (L.) Scop. Dichanthelium ovale (Ell.) Gould & Conyza canadensis (L.) Cronq. var. C.A. Clark var. addisonii (Nash) Gould & Cirsium arvense (L.) Scop. var. canadensis C.A. Clark Cyperus filicinus Vahl. arvense Corallorhiza odontorhiza (Willd.) Dichanthelium scoparium (Lam.) Cirsium arvense (L.) Scop. var. Nuttall var. odontorhiza Gould Cyperus flavicomus Michaux horridum Wimmer & Graebner Digitaria filiformis (L.) Koeler var. Cirsium discolor (Muhl. ex Willd.) Coreopsis lanceolata L. filiformis Cyperus iria L. Spreng. Digitaria ischaemum (Schreb.) Coreopsis tripteris L. Muhl. Cyperus lancastriensis Porter ex Gray Cirsium vulgare (Savi) Ten. Digitaria sanguinalis / ciliaris Cyperus lupulinus (Sprengel) Marcks Cornus alternifolia L.f. complex ssp. lupulinus Claytonia virginica L. Cornus amomum P. Mill. Diodia teres Walt. Cyperus lupulinus complex Clematis terniflora DC. Cornus florida L. Diodia virginiana L. Cyperus polystachyos Rottboell Clethra alnifolia L. Cornus stricta Lam. Dioscorea polystachya Turczaninow Cyperus pseudovegetus Steudel Clinopodium calamintha (L.) Stace Corylus americana Walt. Dioscorea villosa L. Cyperus retrofractus (L.) Torrey Clinopodium vulgare L. Crataegus crus-galli L. var. crus-galli Diospyros virginiana L. Cyperus retrorsus Chapman Clitoria mariana L. var. mariana Diphasiastrum digitatum (Dill. ex A. Coleataenia anceps (Michx.) Soreng Crocanthemum canadense (L.) Britton Braun) Holub Cyperus strigosus L. ssp. anceps Diplachne fusca (L.) P. Beauv. ex Roem. & Schult. var. fascicularis Coleataenia rigidula (Bosc ex Nees) Crotalaria sagittalis L. (Lam.). P.M. Peterson & N. Snow Cypripedium acaule Aiton LeBlond ssp. rigidula Croton glandulosus L. var. septentrionalis Muell.-Arg. Dipsacus fullonum L. Cyrilla racemiflora L. Collinsonia canadensis L. Cytisus scoparius (L.) Link var. Comandra umbellata (L.) Nuttall var. Cryptotaenia canadensis (L.) DC. Distichlis spicata (L.) Greene scoparius umbellata Cucumis melo L. var. melo Draba verna Linnaeus Dactylis glomerata L. ssp. glomerata Commelina communis L. Dryopteris carthusiana (Vill.) H.P. Danthonia spicata (L.) Beauv. ex Cunila origanoides (L.) Britt. Fuchs Roemer & J.A. Schultes Commelina virginica L. Dysphania ambrosioides (L.) Cuscuta campestris Yuncker Mosyakin & Clemants Datura stramonium L. Conoclinium coelestinum (L.) DC. Echinochloa crus-galli (L.) Beauv. Cuscuta compacta Jussieu ex Choisy var. crus-galli Daucus carota L. Consolida ajacis (L.) Schur. Cuscuta gronovii Willd. ex Roem. & Schult. Echinochloa walteri (Pursh) Heller Decodon verticillatus (L.) Ell. Convolvulus arvensis L. Dendrolycopodium obscurum (L.) A. Conyza canadensis (L.) Cronq. var. Cuscuta pentagona Engelm. Eclipta prostrata (L.) L. Haines canadensis Cynodon dactylon (L.) Pers. var. Dennstaedtia punctilobula (Michx.) T. dactylon Elaeagnus angustifolia L. Moore Coreopsis lanceolata L. Cyperus compressus L. Eleocharis obtusa (Willd.) Schultes Deparia acrostichoides (Sw.) M. Kato Cornus amomum P. Mill. Eleocharis tenuis (Willd.) Schultes Cyperus croceus Vahl var. tenuis Desmodium canescens (L.) DC. Cornus florida L. Cyperus diandrus Torrey Eleocharis tortilis (Link) Schultes Desmodium glabellum (Michx.) DC. Corylus americana Walt. Croton glandulosus L. var. Cyperus difformis L. Elephantopus carolinianus Raeusch. Desmodium laevigatum (Nutt.) DC. septentrionalis Muell.-Arg. Cyperus echinatus (L.) Wood Elephantopus tomentosus L. Desmodium marilandicum (L.) DC. Cryptotaenia canadensis (L.) DC. Desmodium paniculatum (L.) DC. var. Cyperus erythrorhizos Muhlenberg Eleusine indica (L.) Gaertn. paniculatum Cunila origanoides (L.) Britt. Elymus glabriflorus (Vasey ex L.H. Cyperus filicinus Vahl. Dewey) Scribn. & C.R. Ball Deutzia scabra Thunb. Cuphea viscosissima Jacq. Cyperus flavescens L. Elymus virginicus L. var. virginicus Dianthus armeria L. Cuscuta campestris Yuncker Dichanthelium acuminatum (Sw.) Cyperus grayi Torrey Epifagus virginiana (L.) W.Barton Gould & C.A. Clark var. acuminatum Cuscuta compacta Jussieu ex Choisy Cuscuta gronovii Willd. ex Roem. & Cyperus iria L. Epigaea repens L. Dichanthelium acuminatum complex Schult. Dichanthelium boscii (Poir.) Gould & Cyperus lancastriensis Porter ex Gray Equisetum arvense L. C.A. Clark Cuscuta indecora Choisy Dichanthelium clandestinum (L.) Cyperus lupulinus complex Eragrostis curvula (Schrad.) Nees Gould Cuscuta pentagona Engelm. Dichanthelium commutatum (J.A. Cyperus odoratus L. var. odoratus Eragrostis hirsuta (Michx.) Nees Schultes) Gould Cynanchum laeve (Michx.) Pers. Eragrostis pilosa (L.) Beauv. var. Dichanthelium depauperatum (Muhl.) Cynodon dactylon (L.) Pers. var. Cyperus polystachyos Rottboell pilosa Gould dactylon Cynoglossum virginianum L. var. Cyperus pseudovegetus Steudel Eragrostis spectabilis (Pursh) Steud. Dichanthelium dichotomum complex virginianum Erechtites hieraciifolius (L.) Raf. ex Dichanthelium microcarpon (Muhl. ex Cyperus retrofractus (L.) Torrey DC. Elliott) Mohlenbrock Cyperus echinatus (L.) Wood Erianthus brevibarbis Michx. var. Dichanthelium polyanthes (Schultes) Cyperus esculentus L. var. Cyperus retrorsus Chapman contortus (Ell.) D.B. Ward Mohlenbrock leptostachyus Böckler Erianthus giganteus (Walt.) P. Dichanthelium scoparium (Lam.) Cyperus strigosus L. Beauv. Gould Cyperus filicinus Vahl. Cypripedium acaule Aiton Erigeron annuus (L.) Pers. Digitaria ischaemum (Schreb.) Muhl. Cyperus haspan L. Erigeron strigosus Muhl. ex Willd. Cypripedium kentuckiense C.F.Reed var. strigosus Digitaria sanguinalis / ciliaris complex Cyperus iria L. Cypripedium parviflorum Salisb. var. Erodium cicutarium (L.) L'Her. ex pubescens (Willd.) Knight Ait. ssp. cicutarium Diodia teres Walt. Cyperus lancastriensis Porter ex Gray Cytisus scoparius (L.) Link var. Eryngium aquaticum L. var. scoparius aquaticum Diodia virginiana L. Cyperus lupulinus complex Dactylis glomerata L. ssp. glomerata Eubotrys racemosus (L.) Nutt. Dioscorea polystachya Turczaninow Cyperus odoratus L. var. odoratus Danthonia sericea Nutt. Euonymus americanus L. Dioscorea villosa L. Cyperus pseudovegetus Steudel Danthonia spicata (L.) Beauv. ex Euonymus fortunei (Turcz.) Hand.- Roemer & J.A. Schultes Maz. Diospyros virginiana L. Cyperus retrorsus Chapman Eupatorium capillifolium (Lam.) Diphasiastrum digitatum (Dill. ex A. Datura stramonium L. Small Braun) Holub Cyperus strigosus L. Daucus carota L. Eupatorium godfreyanum Cronq. Dipsacus fullonum L. Cypripedium acaule Aiton Decodon verticillatus (L.) Ell. Eupatorium hyssopifolium L. Draba verna Linnaeus Dactylis glomerata L. ssp. glomerata Dryopteris carthusiana (Vill.) H.P. Danthonia spicata (L.) Beauv. ex Decumaria barbara L. Eupatorium perfoliatum L. Fuchs Roemer & J.A. Schultes Dendrolycopodium obscurum (L.) A. Dryopteris celsa (Wm. Palmer) Haines Eupatorium pilosum Walt. Knowlt., Palmer & Pollard ex Small Datura stramonium L. Dennstaedtia punctilobula (Michx.) T. Eupatorium pubescens Muhl. ex Moore Willd. Dryopteris cristata (L.) Gray Daucus carota L. Descurainia sophia (Linnaeus) Webb Dryopteris intermedia (Muhl. ex ex. Prantl Eupatorium rotundifolium L. Willd.) Gray Decodon verticillatus (L.) Ell. Dulichium arundinaceum (L.) Britton Dendrolycopodium obscurum (L.) A. Desmodium canescens (L.) DC. Eupatorium serotinum Michx. var. arundinaceum Haines Desmodium ciliare (Muhl. ex Willd.) Eupatorium torreyanum Short and Dysphania ambrosioides (L.) Mosyakin Dennstaedtia punctilobula (Michx.) T. DC. Peter & Clemants Moore Echinochloa crus-galli (L.) Beauv. var. Desmodium fernaldii Schub. Euphorbia corollata L. crus-galli Deparia acrostichoides (Sw.) M. Kato Echinochloa muricata (Beauv.) Fern. Desmodium glabellum (Michx.) DC. Euphorbia cyparissias L. var. muricata Desmodium canescens (L.) DC. Desmodium ciliare (Muhl. ex Willd.) Desmodium laevigatum (Nutt.) DC. Euphorbia maculata L. Echinochloa walteri (Pursh) Heller DC. Desmodium marilandicum (L.) DC. Euphorbia nutans Lagasca y Segura Echium vulgare L. Desmodium glabellum (Michx.) DC. Desmodium nuttallii (Schindl.) Schub. Euphorbia polygonifolia L. Eclipta prostrata (L.) L. Desmodium marilandicum (L.) DC. Desmodium paniculatum (L.) DC. var. Desmodium paniculatum (L.) DC. var. paniculatum Eurybia compacta Nesom Elaeagnus umbellata Thunb. paniculatum Euthamia caroliniana (L.) Greene ex Desmodium rotundifolium DC. Porter & Britt. Eleocharis engelmannii Steudel Desmodium viridiflorum (L.) DC. Eutrochium dubium (Willd. ex Poir.) Desmodium viridiflorum (L.) DC. E.E. Lamont Eleocharis erythropoda Steudel Dianthus armeria L. Eutrochium fistulosum (Barratt) Dichanthelium acuminatum (Sw.) Dianthus armeria L. E.E. Lamont Eleocharis fallax Weatherby Gould & C.A. Clark var. acuminatum Dichanthelium acuminatum (Sw.) Dichanthelium acuminatum (Sw.) Eutrochium purpureum (Linnaeus) Eleocharis flavescens (Poiret) Urban Gould & C.A. Clark var. lindheimeri Gould & C.A. Clark var. acuminatum E.E. Lamont var. purpureum var. flavescens (Nash) Gould & C.A. Clark Eleocharis flavescens (Poiret) Urban Dichanthelium acuminatum complex Fagus grandifolia Ehrhart var. olivacea (Torr.) Gleason Dichanthelium acuminatum complex Dichanthelium boscii (Poir.) Gould & Dichanthelium boscii (Poir.) Gould & C.A. Clark Fimbristylis annua (Allioni) R. & S. Eleocharis obtusa (Willd.) Schultes C.A. Clark Dichanthelium clandestinum (L.) Eleocharis palustris (L.) Roemer & Dichanthelium clandestinum (L.) Gould Fimbristylis autumnalis (L.) R. & S. Schultes Gould Dichanthelium columbianum (Scribn.) Eleocharis parvula (R. & S.) Link ex Dichanthelium columbianum (Scribn.) Freckmann Fimbristylis castanea (Michx.) Vahl Bluff, Nees & Schauer Freckmann Dichanthelium commutatum (J.A. Eleocharis quadrangulata (Michaux) Dichanthelium commutatum (J.A. Schultes) Gould Foeniculum vulgare P. Mill. R. & S. Schultes) Gould Dichanthelium commutatum (J.A. Dichanthelium commutatum (J.A. Schultes) Gould var. ashei (Pearson ex Eleocharis tuberculosa (Michx.) Schultes) Gould var. ashei (Pearson ex Ashe) Mohlenbrock Forsythia viridissima Lindley Schultes Ashe) Mohlenbrock Dichanthelium depauperatum (Muhl.) Dichanthelium commutatum (J.A. Gould Fragaria virginiana Duchesne Elephantopus carolinianus Raeusch. Schultes) Gould var. commutatum Dichanthelium dichotomum (L.) Gould Galactia volubilis (L.) Britt. var. Dichanthelium depauperatum (Muhl.) var. dichotomum volubilis Eleusine indica (L.) Gaertn. Gould Dichanthelium dichotomum (L.) Gould Dichanthelium dichotomum complex Galax urceolata (Poir.) Brummitt Elodea nuttallii (Planchon) St. John var. dichotomum Dichanthelium linearifolium (Scribn.) Gould Galium aparine L. Elymus repens (L.) Gould Dichanthelium dichotomum complex Dichanthelium lucidum (Ashe) Galium obtusum Bigelow var. Dichanthelium ensifolium (Baldwin ex LeBlond obtusum Elymus virginicus L. var. virginicus Elliott) Gould Dichanthelium meridionale (Ashe) Dichanthelium microcarpon (Muhl. ex Freckmann Galium sherardia E.H.L. Krause Endodeca serpentaria (L.) Raf. Elliott) Mohlenbrock Dichanthelium microcarpon (Muhl. ex Dichanthelium scoparium (Lam.) Elliott) Mohlenbrock Galium tinctorium (L.) Scop. Epifagus virginiana (L.) W.Barton Gould Dichanthelium polyanthes (Schultes) Dichanthelium sphaerocarpon (Ell.) Mohlenbrock Gamochaeta argyrinea Nesom Epigaea repens L. Gould Dichanthelium ravenelii (Scribn. & Dichanthelium tenue (Muhl.) Merr.) Gould Gamochaeta purpurea (L.) Cabrera Equisetum arvense L. Freckmann & Lelong Dichanthelium scoparium (Lam.) Gaylussacia baccata (Wangenh.) K. Gould Koch Eragrostis capillaris (L.) Nees Digitalis purpurea L. Dichanthelium sphaerocarpon (Ell.) Gaylussacia dumosa (Andr.) Torr. & Eragrostis cilianensis (All.) Vignola. ex Gould Gray Janchen Digitaria ciliaris (Retz.) Koeler Gaylussacia frondosa (L.) Torr. & Digitaria ischaemum (Schreb.) Muhl. Gray ex Torr. Eragrostis curvula (Schrad.) Nees Digitaria ischaemum (Schreb.) Muhl. Digitaria sanguinalis / ciliaris complex Geranium carolinianum L. Eragrostis hirsuta (Michx.) Nees Digitaria sanguinalis / ciliaris complex Eragrostis pilosa (L.) Beauv. var. Diodia teres Walt. Geranium molle L. pilosa Diodia teres Walt. Diodia virginiana L. Gleditsia triacanthos L. Eragrostis refracta (Muhl.) Scribn. Diodia virginiana L. Dioscorea polystachya Turczaninow Glyceria obtusa (Muhl.) Trin. Eragrostis spectabilis (Pursh) Steud. Dioscorea villosa L. Erechtites hieraciifolius (L.) Raf. ex Dioscorea villosa L. Glyceria striata (Lam.) A.S. Hitchc. DC. Diospyros virginiana L. Gonolobus suberosus (L.) R. Br. var. Diphasiastrum digitatum (Dill. ex A. Diospyros virginiana L. suberosus Erianthus alopecuroides (L.) Ell. Braun) Holub Diphasiastrum digitatum (Dill. ex A. Goodyera pubescens (Willd.) R.Br. Erianthus brevibarbis Michx. var. Braun) Holub ex Aiton f. contortus (Ell.) D.B. Ward Distichlis spicata (L.) Greene Distichlis spicata (L.) Greene Gratiola virginiana L. Erianthus giganteus (Walt.) P. Beauv. Draba verna Linnaeus Doellingeria infirma (Michx.) Greene Gymnopogon brevifolius Trin. Erigeron annuus (L.) Pers. Drosera capillaris Poir. Erigeron strigosus Muhl. ex Willd. var. Draba verna Linnaeus Helianthus atrorubens L. strigosus Drosera intermedia Hayne Erodium cicutarium (L.) L'Her. ex Ait. Dryopteris carthusiana (Vill.) H.P. Dryopteris marginalis (L.) Gray Helianthus tuberosus L. ssp. cicutarium Fuchs Dulichium arundinaceum (L.) Britton Dryopteris celsa (Wm. Palmer) var. arundinaceum Hemerocallis fulva (L.) L. Eubotrys racemosus (L.) Nutt. Knowlt., Palmer & Pollard ex Small Dysphania ambrosioides (L.) Mosyakin Hepatica americana (DC.) Ker- Dryopteris intermedia (Muhl. ex & Clemants Gawl. Euonymus americanus L. Willd.) Gray Echinochloa crus-galli (L.) Beauv. var. Hexalectris spicata (Walter) Barnh. Dulichium arundinaceum (L.) Britton crus-galli var. spicata Eupatorium album L. var. album var. arundinaceum Dysphania ambrosioides (L.) Mosyakin Echinochloa walteri (Pursh) Heller Hexastylis virginica (L.) Small Eupatorium capillifolium (Lam.) Small & Clemants Echinochloa crus-galli (L.) Beauv. var. Eclipta prostrata (L.) L. Hibiscus moscheutos L. Eupatorium hyssopifolium L. crus-galli Echinochloa muricata (Beauv.) Fern. Elaeagnus umbellata Thunb. Hibiscus syriacus L. Eupatorium perfoliatum L. var. muricata Eleocharis albida Torrey Hieracium gronovii L. Eupatorium pilosum Walt. Echinochloa walteri (Pursh) Heller Eleocharis flavescens (Poiret) Urban var. olivacea (Torr.) Gleason Hieracium venosum L. Eupatorium pubescens Muhl. ex Willd. Eclipta prostrata (L.) L. Eleocharis microcarpa Torrey var. filiculmis Torrey Holcus lanatus L. Eupatorium rotundifolium L. Elaeagnus umbellata Thunb. Eleocharis obtusa (Willd.) Schultes Hordeum pusillum Nutt. Eupatorium serotinum Michx. Elatine americana (Pursh) Arnott Eleocharis palustris (L.) Roemer & Eupatorium torreyanum Short and Schultes Houstonia caerulea L. Peter Eleocharis obtusa (Willd.) Schultes Eleocharis parvula (R. & S.) Link ex Eleocharis parvula (R. & S.) Link ex Bluff, Nees & Schauer Houstonia purpurea L. var. purpurea Euphorbia corollata L. Bluff, Nees & Schauer Eleocharis tortilis (Link) Schultes Hudsonia tomentosa Nutt. Euphorbia cyparissias L. Elephantopus carolinianus Raeusch. Eleocharis tuberculosa (Michx.) Schultes Huperzia lucidula (Michx.) Trevisan Euphorbia maculata L. Elephantopus tomentosus L. Elephantopus carolinianus Raeusch. Hydrocotyle ranunculoides L. f. Euphorbia nutans Lagasca y Segura Eleusine indica (L.) Gaertn. Elephantopus nudatus Gray Hydrocotyle verticillata Thunb. Eurybia compacta Nesom Elodea nuttallii (Planchon) St. John Hylodesmum nudiflorum (L.) H. Elymus glabriflorus (Vasey ex L.H. Elephantopus tomentosus L. Ohashi & R.R. Mill Eurybia divaricata (L.) Nesom Dewey) Scribn. & C.R. Ball Euthamia caroliniana (L.) Greene ex Eleusine indica (L.) Gaertn. Hypericum crux-andreae (L.) Crantz Porter & Britt. Elymus hystrix L. var. hystrix Euthamia graminifolia (L.) Nutt. var. Elymus hystrix L. var. hystrix Hypericum gentianoides (L.) B.S.P. graminifolia Elymus villosus Muhl. ex Willd. Hypericum gymnanthum Engelm. & Eutrochium dubium (Willd. ex Poir.) Elymus virginicus L. var. virginicus A. Gray E.E. Lamont Elymus virginicus L. var. virginicus Eutrochium fistulosum (Barratt) E.E. Epifagus virginiana (L.) W.Barton Hypericum hypericoides (L.) Crantz Lamont Endodeca serpentaria (L.) Raf. Epigaea repens L. Hypericum punctatum Lam. Fagus grandifolia Ehrhart Epifagus virginiana (L.) W.Barton Epilobium coloratum Biehler Hypericum virginicum L. Fallopia scandens (L.) Holub Epigaea repens L. Equisetum arvense L. Hypericum walteri Gmelin Festuca subverticillata (Pers.) Alexeev Equisetum arvense L. Equisetum hyemale L. ssp. affine Eragrostis capillaris (L.) Nees Hypochaeris radicata L. Fimbristylis annua (Allioni) R. & S. (Engelm.) Calder & R.L. Taylor Eragrostis cilianensis (All.) Vignola. ex Eragrostis cilianensis (All.) Vignola. ex Janchen Ilex opaca Aiton var. opaca Fimbristylis autumnalis (L.) R. & S. Janchen Eragrostis curvula (Schrad.) Nees Ilex verticillata (L.) Gray Fimbristylis castanea (Michx.) Vahl Eragrostis curvula (Schrad.) Nees Eragrostis pilosa (L.) Beauv. var. Eragrostis hirsuta (Michx.) Nees Impatiens capensis Meerburg Fragaria virginiana Duchesne pilosa Eragrostis spectabilis (Pursh) Steud. Ipomoea coccinea L. Fraxinus americana L. Eragrostis spectabilis (Pursh) Steud. Erechtites hieraciifolius (L.) Raf. ex DC. Ipomoea hederacea Jacq. Fraxinus pennsylvanica Marshall Eranthis hyemalis (L.) Salisb. Erechtites hieraciifolius (L.) Raf. ex Erianthus alopecuroides (L.) Ell. Ipomoea lacunosa L. Fuirena squarrosa Michaux DC. Erianthus brevibarbis Michx. var. Eremochloa ophiuroides (Munro) contortus (Ell.) D.B. Ward Ipomoea pandurata (L.) G.F.W. Mey. Fumaria officinalis L. Hack. Galactia volubilis (L.) Britt. var. Erianthus brevibarbis Michx. var. Erianthus giganteus (Walt.) P. Beauv. Ipomoea purpurea (L.) Roth volubilis contortus (Ell.) D.B. Ward Isotria verticillata (Muhl. ex Willd.) Erigeron annuus (L.) Pers. Raf. Galearis spectabilis (L.) Raf. Erianthus giganteus (Walt.) P. Beauv. Erigeron philadelphicus L. var. philadelphicus Itea virginica L. Galium aparine L. Erigeron annuus (L.) Pers. Erigeron strigosus Muhl. ex Willd. var. Erigeron philadelphicus L. var. strigosus Iva frutescens L. Galium circaezans Michx. philadelphicus Erodium cicutarium (L.) L'Her. ex Ait. Erigeron strigosus Muhl. ex Willd. var. ssp. cicutarium Juglans nigra L. Galium obtusum Bigelow var. obtusum strigosus Eryngium aquaticum L. var. Galium pedemontanum (Bellardi) aquaticum Juncus acuminatus Michx. Allioni Eriocaulon parkeri B.L.Robinson Erythronium americanum Ker-Gawl. Erodium cicutarium (L.) L'Her. ex Ait. ssp. americanum Juncus bufonius L. Galium pilosum Ait. ssp. cicutarium Juncus canadensis J. Gay ex Eryngium aquaticum L. var. Eubotrys racemosus (L.) Nutt. Laharpe Galium sherardia E.H.L. Krause aquaticum Euonymus americanus L. Juncus coriaceus Mackenzie Galium tinctorium (L.) Scop. Erysimum repandum Linnaeus Eupatorium album L. var. album Juncus debilis Gray Galium triflorum Michx. Eubotrys racemosus (L.) Nutt. Eupatorium capillifolium (Lam.) Small Juncus dichotomus Ell. Gamochaeta purpurea (L.) Cabrera Euonymus americanus L. Gaylussacia baccata (Wangenh.) K. Eupatorium godfreyanum Cronq. Juncus effusus L. Koch Eupatorium cannabinum L. Gaylussacia frondosa (L.) Torr. & Gray Eupatorium hyssopifolium L. Juncus marginatus Rostk. ex Torr. Eupatorium capillifolium (Lam.) Small Eupatorium mohrii Greene Juncus roemerianus Scheele Geranium carolinianum L. Eupatorium hyssopifolium L. Eupatorium perfoliatum L. Juncus scirpoides Lam. Geranium dissectum L. Eupatorium perfoliatum L. Eupatorium pilosum Walt. Juncus secundus Beauv. ex Poir. Geranium molle L. Eupatorium pilosum Walt. Eupatorium pubescens Muhl. ex Willd. Juncus tenuis Willd. Geum canadense Jacquin Eupatorium pubescens Muhl. ex Willd. Juniperus virginiana L. var. Eupatorium rotundifolium L. virginiana Glechoma hederacea L. Eupatorium rotundifolium L. Eupatorium serotinum Michx. Kalmia latifolia L. Gleditsia triacanthos L. Eupatorium serotinum Michx. Kosteletzkya pentacarpos (L.) Eupatorium torreyanum Short and Euphorbia corollata L. Ledebour Glyceria obtusa (Muhl.) Trin. Peter Euphorbia cyparissias L. Krigia virginica (L.) Willd. Glyceria striata (Lam.) A.S. Hitchc. Euphorbia corollata L. Kummerowia stipulacea (Maxim.) Euphorbia maculata L. Makino Glycine max (L.) Merr. Euphorbia cyparissias L. Kummerowia striata (Thunb.) Goodyera pubescens (Willd.) R.Br. ex Euphorbia nutans Lagasca y Segura Schindl. Aiton f. Euphorbia maculata L. Euphorbia polygonifolia L. Lactuca canadensis L. Gratiola virginiana L. Euphorbia nutans Lagasca y Segura Eurybia compacta Nesom Lactuca serriola L. Gratiola viscidula Pennell Euphorbia polygonifolia L. Euthamia caroliniana (L.) Greene ex Porter & Britt. Lamium amplexicaule L. Hamamelis virginiana L. Eurybia divaricata (L.) Nesom Euthamia graminifolia (L.) Nutt. var. Euthamia graminifolia (L.) Nutt. var. graminifolia Lamium purpureum L. Hedera helix L. graminifolia Eutrochium dubium (Willd. ex Poir.) Eutrochium dubium (Willd. ex Poir.) E.E. Lamont Lathyrus latifolius L. Helenium autumnale L. E.E. Lamont Eutrochium fistulosum (Barratt) E.E. Lechea maritima Leggett ex B.S.P. Eutrochium fistulosum (Barratt) E.E. Lamont var. virginica Hogdon Helianthus annuus L. Lamont Eutrochium purpureum (Linnaeus) E.E. Lamont var. purpureum Lechea pulchella Raf. Helianthus atrorubens L. Fagus grandifolia Ehrhart Fagopyrum esculentum Moench Lechea racemulosa Michx. Hemerocallis fulva (L.) L. Festuca subverticillata (Pers.) Alexeev Fagus grandifolia Ehrhart Leersia oryzoides (L.) Sw. Hepatica americana (DC.) Ker-Gawl. Filago vulgaris Lam. Fallopia scandens (L.) Holub Leersia virginica Willd. Heteranthera reniformis Ruiz & Pavon Fimbristylis autumnalis (L.) R. & S. Heuchera americana L. var. Festuca subverticillata (Pers.) Alexeev Lemna minor L. americana Foeniculum vulgare P. Mill. Fragaria vesca L. var americana Fimbristylis autumnalis (L.) R. & S. Lemna perpusilla Torr. Hexastylis virginica (L.) Small Porter Lepidium campestre (Linnaeus) R. Fimbristylis castanea (Michx.) Vahl Brown Hibiscus moscheutos L. Fragaria virginiana Duchesne Fleischmannia incarnata (Walt.) King & Robins. Lepidium virginicum L. Hibiscus syriacus L. Fraxinus americana L. Foeniculum vulgare P. Mill. Lespedeza angustifolia (Pursh) Ell. Hieracium caespitosum Dumort. Fumaria officinalis L. Forsythia suspensa (Thunb.) Vahl Lespedeza capitata Michx. Hieracium gronovii L. Galactia regularis (L.) B.S.P. Lespedeza cuneata (Dum.-Cours.) Galactia volubilis (L.) Britt. var. Fragaria virginiana Duchesne G. Don Hieracium venosum L. volubilis Fraxinus americana L. Lespedeza procumbens Michx. Holcus lanatus L. Galearis spectabilis (L.) Raf. Holosteum umbellatum L. ssp. Fraxinus pennsylvanica Marshall Lespedeza repens (L.) W. Bart. umbellatum Galinsoga parviflora Cav. Fuirena squarrosa Michaux Lespedeza virginica (L.) Britt. Hordeum pusillum Nutt. Galium aparine L. Gaillardia pulchella Foug. var. pulchella Leucanthemum vulgare Lam. Houstonia caerulea L. Galium circaezans Michx. Galactia regularis (L.) B.S.P. Ligustrum sinense Louriere Houstonia purpurea L. var. purpurea Galium obtusum Bigelow var. obtusum Galactia volubilis (L.) Britt. var. volubilis Lilaeopsis chinensis (L.) Kuntze Huperzia lucidula (Michx.) Trevisan Galium pilosum Ait. Galax urceolata (Poir.) Brummitt Lindera benzoin (L.) Blume Hydrangea arborescens L. Galium sherardia E.H.L. Krause Lindernia dubia (L.) Pennell var. Galearis spectabilis (L.) Raf. anagallidea (Michx.) Cooperrider Hydrocotyle ranunculoides L. f. Galium tinctorium (L.) Scop. Galinsoga parviflora Cav. Linum intercursum Bickn. Hydrocotyle umbellata L. Galium triflorum Michx. Linum medium (Planch.) Britton Galinsoga quadriradiata Ruiz & Pavon var. texanum (Planch.) Fern. Hydrocotyle verticillata Thunb. Gamochaeta purpurea (L.) Cabrera Hylodesmum glutinosum (Muhl. ex Gaylussacia baccata (Wangenh.) K. Galium aparine L. Linum striatum Walt. Willld.) H. Ohashi & R.R. Mill Koch Hylodesmum nudiflorum (L.) H. Gaylussacia frondosa (L.) Torr. & Gray Galium circaezans Michx. Linum virginianum L. Ohashi & R.R. Mill ex Torr. Hylodesmum pauciflorum (Nutt.) H. Galium obtusum Bigelow var. obtusum Liquidambar styraciflua L. Ohashi & R.R. Mill Geranium carolinianum L. Galium obtusum Bigelow var. var. filifolium (Wieg.) Fern. Liriodendron tulipifera L. Hypericum crux-andreae (L.) Crantz Geranium molle L. Galium pilosum Ait. Listera australis Lindl. Hypericum gentianoides (L.) B.S.P. Geum canadense Jacquin Hypericum gymnanthum Engelm. & A. Galium sherardia E.H.L. Krause Lobelia cardinalis L. Gray Glechoma hederacea L. Galium triflorum Michx. Lobelia inflata L. Hypericum hypericoides (L.) Crantz Gleditsia triacanthos L. Gamochaeta purpurea (L.) Cabrera Lobelia puberula Michaux Hypericum mutilum L. Glyceria obtusa (Muhl.) Trin. Gaylussacia baccata (Wangenh.) K. Koch Lobelia siphilitica L. var. siphilitica Hypericum perforatum L. Glyceria striata (Lam.) A.S. Hitchc. Gaylussacia dumosa (Andr.) Torr. & Lolium arundinaceum (Schreb.) Gonolobus suberosus (L.) R. Br. var. Gray Darbysh. Hypericum punctatum Lam. suberosus Gaylussacia frondosa (L.) Torr. & Gray Goodyera pubescens (Willd.) R.Br. ex ex Torr. Lolium perenne L. Hypericum virginicum L. Aiton f. Gelsemium sempervirens (L.) St.- Hilaire Lonicera japonica Thunb. Hypericum walteri Gmelin Gratiola virginiana L. Gentiana catesbaei Walt. Lonicera sempervirens L. Hypochaeris radicata L. Gratiola viscidula Pennell Gentiana villosa L. Ludwigia alternifolia L. Hypopitys monotropa Crantz Hamamelis virginiana L. Ludwigia brevipes (B.H. Long ex Geranium carolinianum L. Britt., A. Braun & Small) Eames Hypoxis hirsuta (L.) Coville Hedeoma pulegioides (L.) Pers. Geranium molle L. Ludwigia decurrens Walter Ilex laevigata (Pursh) Gray Hedera helix L. Geum canadense Jacquin Ludwigia palustris (L.) Elliott Ilex opaca Aiton var. opaca Helenium autumnale L. Glechoma hederacea L. Lupinus perennis L. Ilex verticillata (L.) Gray Helianthus tuberosus L. Luzula bulbosa (Wood) Smyth & Gleditsia triacanthos L. Smyth Impatiens capensis Meerburg Hemerocallis fulva (L.) L. Luzula echinata (Small) F.J. Glyceria obtusa (Muhl.) Trin. Hermann Ipomoea coccinea L. Hepatica americana (DC.) Ker-Gawl. Glyceria septentrionalis A.S. Hitchc. Luzula multiflora (Ehrhart) Lejeune var. septentrionalis var. multiflora Ipomoea hederacea Jacq. Hesperis matronalis Linnaeus Lycopodiella appressa (Chapman) Glyceria striata (Lam.) A.S. Hitchc. Cranfill Ipomoea lacunosa L. Heteranthera reniformis Ruiz & Pavon Goodyera pubescens (Willd.) R.Br. ex Heuchera americana L. var. Aiton f. Lycopodioides apodum (L.) Kuntze Ipomoea pandurata (L.) G.F.W. Mey. americana Lycopus americanus Muhl. ex W. Gratiola neglecta Torr. Bart. Ipomoea purpurea (L.) Roth Hexastylis virginica (L.) Small Gratiola virginiana L. Lycopus europaeus L. Iris pseudacorus L. Hibiscus moscheutos L. Hamamelis virginiana L. Lycopus virginicus L. Itea virginica L. Hibiscus syriacus L. Lyonia ligustrina (L.) DC. var. Hedera helix L. ligustrina Iva frutescens L. Hieracium gronovii L. Helenium amarum (Raf.) H. Rock var. amarum Lyonia mariana (L.) D. Don Juglans cinerea L. Holcus lanatus L. Holosteum umbellatum L. ssp. Helenium flexuosum Raf. Lysimachia quadrifolia L. Juglans nigra L. umbellatum Homalosorus pycnocarpon (Spreng.) Helianthus annuus L. Lythrum lineare L. Juncus acuminatus Michx. Pichi-Sermolli Helianthus atrorubens L. Lythrum salicaria L. Juncus bufonius L. Hordeum pusillum Nutt. Helianthus divaricatus L. Magnolia virginiana L. Juncus canadensis J. Gay ex Laharpe Houstonia caerulea L. Maianthemum racemosum (L.) Link Helianthus grosseserratus Martens ssp. racemosum Juncus coriaceus Mackenzie Houstonia purpurea L. var. purpurea Helianthus laetiflorus Pers. Matelea carolinensis (Jacq.) Woods. Juncus debilis Gray Houstonia pusilla Schoepf Helianthus tuberosus L. Medeola virginiana L. Juncus dichotomus Ell. Huperzia lucidula (Michx.) Trevisan Hemerocallis fulva (L.) L. Melampyrum lineare Desr. Juncus dudleyi Wieg. Hydrangea arborescens L. Hepatica americana (DC.) Ker-Gawl. Melilotus albus Medikus Juncus effusus L. Hydrocotyle verticillata Thunb. Heteranthera reniformis Ruiz & Pavon Melilotus officinalis (L.) Lam. Juncus gerardii Loisel. Hydrophyllum virginianum L. Hexastylis virginica (L.) Small Melothria pendula L. Juncus marginatus Rostk. Hypericum canadense L. Microstegium vimineum (Trin.) A. Hibiscus moscheutos L. Camus Juncus roemerianus Scheele Hypericum gentianoides (L.) B.S.P. Hypericum gymnanthum Engelm. & A. Hibiscus syriacus L. Mikania scandens (L.) Willd. Juncus scirpoides Lam. Gray Hieracium gronovii L. Miscanthus sinensis Anderss. Juncus tenuis Willd. Hypericum hypericoides (L.) Crantz Hypericum hypericoides (L.) Crantz Holcus lanatus L. Mitchella repens L. Juniperus virginiana L. var. virginiana ssp. hypericoides Homalosorus pycnocarpon (Spreng.) Pichi-Sermolli Mollugo verticillata L. Kalmia latifolia L. Hypericum mutilum L. Kosteletzkya pentacarpos (L.) Hordeum pusillum Nutt. Monarda punctata L. var. punctata Ledebour Hypericum punctatum Lam. Houstonia caerulea L. Monotropa uniflora L. Krigia dandelion (L.) Nutt. Hypericum virginicum L. Monotropsis odorata Schwein. ex Houstonia purpurea L. var. purpurea Ell. var. odorata Krigia virginica (L.) Willd. Hypericum walteri Gmelin Kummerowia stipulacea (Maxim.) Houstonia pusilla Schoepf Morella cerifera (L.) Small Makino Hypochaeris radicata L. Hudsonia tomentosa Nutt. Morus alba L. Kummerowia striata (Thunb.) Schindl. Ilex opaca Aiton var. opaca Huperzia lucidula (Michx.) Trevisan Morus rubra L. Kyllinga pumila Michaux Ilex verticillata (L.) Gray Murdannia keisak (Hasskarl) Handel- Hydrangea arborescens L. Mazzetti Lactuca canadensis L. Impatiens capensis Meerburg Hydrocotyle ranunculoides L. f. Muscari neglectum Guss. ex Ten. Lactuca serriola L. Ipomoea coccinea L. Hydrocotyle umbellata L. Myosotis laxa Lehm. Lamium amplexicaule L. Ipomoea hederacea Jacq. Hydrocotyle verticillata Thunb. Myosotis verna Nutt. Lamium purpureum L. Ipomoea lacunosa L. Hylodesmum nudiflorum (L.) H. Ohashi & R.R. Mill Narcissus poeticus L. Laportea canadensis (L.) Weddell Ipomoea pandurata (L.) G.F.W. Mey. Hylodesmum pauciflorum (Nutt.) H. Ohashi & R.R. Mill Narcissus pseudonarcissus L. Lathyrus hirsutus L. Ipomoea purpurea (L.) Roth Hypericum canadense L. Nuphar advena (Ait.) Ait.f. Lathyrus latifolius L. Iresine rhizomatosa Standley Nuttallanthus canadensis (L.) D.A. Hypericum crux-andreae (L.) Crantz Sutton Lechea pulchella Raf. Iris pseudacorus L. Hypericum frondosum Michx. Nyssa sylvatica Marshall Lechea racemulosa Michx. Iris virginica L. Isotria verticillata (Muhl. ex Willd.) Hypericum gentianoides (L.) B.S.P. Obolaria virginica L. Leersia oryzoides (L.) Sw. Raf. Hypericum gymnanthum Engelm. & A. Gray Oenothera biennis L. complex Leersia virginica Willd. Itea virginica L. Oenothera fruticosa L. ssp. Hypericum hypericoides (L.) Crantz fruticosa Lemna valdiviana Phil. Iva frutescens L. Lepidium campestre (Linnaeus) R. Hypericum mutilum L. Oenothera laciniata Hill Brown Juglans nigra L. Hypericum perforatum L. Onoclea sensibilis L. Lepidium draba L. Juncus acuminatus Michx. Ophioglossum pycnostichum Hypericum punctatum Lam. (Fernald) A. & D. Love Lepidium virginicum L. Juncus bufonius L. Opuntia humifusa (Raf.) Raf. var. Lespedeza cuneata (Dum.-Cours.) G. Hypericum virginicum L. humifusa Don Juncus canadensis J. Gay ex Laharpe Hypericum walteri Gmelin Ornithogalum umbellatum L. Lespedeza procumbens Michx. Juncus coriaceus Mackenzie Hypochaeris radicata L. Orontium aquaticum L. Lespedeza repens (L.) W. Bart. Juncus debilis Gray Orychophragmus violaceus (L.) O.E. Hypoxis hirsuta (L.) Coville Schulz Lespedeza stuevei Nutt. Juncus dichotomus Ell. Ilex glabra (L.) Gray Osmunda spectabilis Willd. Lespedeza virginica (L.) Britt. Juncus diffusissimus Buckl. Osmundastrum cinnamomeum (L.) Ilex laevigata (Pursh) Gray C. Presl var. cinnamomeum Leucanthemum vulgare Lam. Juncus effusus L. Ilex opaca Aiton var. opaca Oxalis articulata Savigny Liatris pilosa (Aiton) Willd. Juncus marginatus Rostk. Ilex verticillata (L.) Gray Oxalis stricta L. Ligustrum sinense Louriere Juncus repens Michaux Impatiens capensis Meerburg Oxydendrum arboreum (L.) DC. Lilaeopsis chinensis (L.) Kuntze Juncus scirpoides Lam. Packera anonyma (Wood) W.A. Ionactis linariifolia (L.) Greene Weber & A. Love Lilium superbum L. Juncus secundus Beauv. ex Poir. Packera tomentosa (Michx.) C. Ipomoea coccinea L. Jeffrey Lindera benzoin (L.) Blume Juncus tenuis Willd. Lindernia dubia (L.) Pennell var. Ipomoea hederacea Jacq. Panax trifolius L. anagallidea (Michx.) Cooperrider Juniperus virginiana L. var. virginiana Ipomoea lacunosa L. Panicum amarum Ell. Lindernia dubia (L.) Pennell var. dubia Justicia americana (L.)Vahl Panicum dichotomiflorum Michx. Linum medium (Planch.) Britton var. Ipomoea pandurata (L.) G.F.W. Mey. var. dichotomiflorum texanum (Planch.) Fern. Kalmia latifolia L. Liparis liliifolia (L.) L.C.Rich. ex Ker- Ipomoea purpurea (L.) Roth Panicum verrucosum Muhl. Gawl. Kickxia elatine (L.) Dumort. Kosteletzkya pentacarpos (L.) Iris pseudacorus L. Panicum virgatum L. Liquidambar styraciflua L. Ledebour Parathelypteris noveboracensis (L.) Iris versicolor L. Ching Liriodendron tulipifera L. Krigia virginica (L.) Willd. Parathelypteris simulata Kummerowia stipulacea (Maxim.) Iris virginica L. (Davenport) Holttum Lobelia cardinalis L. Makino Isotria verticillata (Muhl. ex Willd.) Parthenocissus quinquefolia (L.) Raf. Planch. Lobelia inflata L. Kummerowia striata (Thunb.) Schindl. Itea virginica L. Paspalum dilatatum Poir. Lobelia nuttallii J. A.Schultes Kyllinga pumila Michaux Iva frutescens L. Paspalum floridanum Michx. Lobelia puberula Michaux Lactuca canadensis L. Juglans cinerea L. Paspalum laeve Michx. Lobelia siphilitica L. var. siphilitica Lactuca saligna L. Lolium arundinaceum (Schreb.) Juglans nigra L. Paspalum setaceum Michx. Darbysh. Lactuca serriola L. Juncus acuminatus Michx. Passiflora incarnata L. Lolium perenne L. Lamium amplexicaule L. Juncus bufonius L. Passiflora lutea L. Lonicera japonica Thunb. Lamium purpureum L. Paulownia tomentosa (Thunb.) Juncus canadensis J. Gay ex Laharpe Steud. Lonicera sempervirens L. Laportea canadensis (L.) Weddell Juncus coriaceus Mackenzie Peltandra virginica (L.) Schott Ludwigia alternifolia L. Lathyrus latifolius L. Juncus debilis Gray Perilla frutescens (L.) Britt. Ludwigia decurrens Walter Lechea pulchella Raf. Juncus dichotomus Ell. Persicaria arifolia (L.) Haraldson Ludwigia palustris (L.) Elliott Lechea racemulosa Michx. Persicaria hydropiperoides (Michx.) Juncus dudleyi Wieg. Small Lunaria annua Linnaeus Lechea tenuifolia Michx. Juncus effusus L. Persicaria maculosa Gray Lupinus perennis L. Leersia oryzoides (L.) Sw. Persicaria pensylvanica (L.) M. Juncus gerardii Loisel. Gomez Luzula acuminata Raf. Leersia virginica Willd. Luzula bulbosa (Wood) Smyth & Juncus marginatus Rostk. Persicaria punctata (Ell.) Small Smyth Lemna minor L. Persicaria sagittata (L.) H. Gross ex Juncus roemerianus Scheele Nakai Luzula echinata (Small) F.J. Hermann Lemna perpusilla Torr. Juncus scirpoides Lam. Persicaria setacea (Baldw.) Small Lycium barbarum L. Lemna valdiviana Phil. Lycopodiella appressa (Chapman) Juncus secundus Beauv. ex Poir. Persicaria virginiana (L.) Gaertn. Cranfill Leonurus cardiaca L. ssp. cardiaca Phegopteris hexagonoptera (Michx.) Lepidium campestre (Linnaeus) R. Juncus tenuis Willd. Fee Lycopus rubellus Moench Brown Phragmites australis (Cav.) Trin. ex Juniperus virginiana L. var. virginiana Steud. ssp. australis Lycopus virginicus L. Lepidium didymum L. Phryma leptostachya L. var. Lyonia ligustrina (L.) DC. var. Kalmia latifolia L. leptostachya ligustrina Lepidium virginicum L.

Physalis longifolia Nuttall var. Lespedeza cuneata (Dum.-Cours.) G. Kickxia elatine (L.) Dumort. subglabrata (Mackenzie & Bush) Cronq. Lyonia mariana (L.) D. Don Don Kosteletzkya pentacarpos (L.) Ledebour Physalis virginiana P. Miller Lysimachia ciliata L. Lespedeza procumbens Michx. Phytolacca americana L. var. Krigia virginica (L.) Willd. americana Lysimachia quadrifolia L. Lespedeza repens (L.) W. Bart. Kummerowia stipulacea (Maxim.) Makino Pilea pumila (L.) Gray Lysimachia terrestris (L.) B.S.P. Lespedeza violacea (L.) Pers. Kummerowia striata (Thunb.) Schindl. Pinus echinata Miller Lythrum lineare L. Lespedeza virginica (L.) Britt. Kyllinga gracillima Miquel Pinus taeda L. Magnolia virginiana L. Leucanthemum vulgare Lam. Maianthemum racemosum (L.) Link Lactuca canadensis L. Pinus virginiana Miller ssp. racemosum Leucojum aestivum L. Piptochaetium avenaceum (L.) Lactuca serriola L. Parodi Malaxis unifolia Michaux Liatris pilosa (Aiton) Willd. Pityopsis aspera (Shuttlw. ex Small) Small var. adenolepis (Fern.) Semple & Lamium amplexicaule L. Bowers Malus pumila P. Mill. Ligustrum sinense Louriere Pityopsis graminifolia (Michx.) Nutt. Lamium purpureum L. var. latifolia (Fern.) Semple & Bowers Medeola virginiana L. Lilaeopsis chinensis (L.) Kuntze Lathyrus hirsutus L. Plantago aristata Michxaux Melilotus albus Medikus Lilium superbum L. Limnobium spongia (Bosc) L.C.Rich. Lathyrus latifolius L. Plantago lanceolata L. Melilotus officinalis (L.) Lam. ex Steud. Lechea maritima Leggett ex B.S.P. Limonium carolinianum (Walter) var. virginica Hogdon Plantago rugelii Dcne. Melothria pendula L. Britton Lechea minor L. Plantago virginica L. Menispermum canadense L. Lindera benzoin (L.) Blume Lindernia dubia (L.) Pennell var. Lechea mucronata Raf. Platanthera clavellata (Michx.) Luer Mentha spicata L. anagallidea (Michx.) Cooperrider Microstegium vimineum (Trin.) A. Lechea pulchella Raf. Platanthera lacera (Michx.) G.Don Camus Lindernia dubia (L.) Pennell var. dubia Lechea racemulosa Michx. Platanthera peramoena (Gray) Gray Mikania scandens (L.) Willd. Linum striatum Walt. Leersia oryzoides (L.) Sw. Platanus occidentalis L. Mimulus alatus Aiton Linum virginianum L. Leersia virginica Willd. Pluchea odorata (L.) Cass. Mimulus ringens L. var. ringens Liquidambar styraciflua L. Lemna minor L. Poa annua L. Mitchella repens L. Liriodendron tulipifera L. Lemna valdiviana Phil. Poa autumnalis Muhl. ex Ell. Mollugo verticillata L. Lobelia cardinalis L. Lepidium campestre (Linnaeus) R. Brown Poa sylvestris Gray Monotropa uniflora L. Lobelia inflata L. Lepidium virginicum L. Podophyllum peltatum L. Morella cerifera (L.) Small Lobelia nuttallii J. A.Schultes Lespedeza angustifolia (Pursh) Ell. Polygala incarnata L. Morus alba L. Lobelia puberula Michaux Lespedeza bicolor Turcz. Polygala mariana P. Mill. Morus rubra L. Lobelia siphilitica L. var. siphilitica Murdannia keisak (Hasskarl) Handel- Lolium arundinaceum (Schreb.) Lespedeza capitata Michx. Polygonatum biflorum (Walt.) Ell. Mazzetti Darbysh. Lespedeza cuneata (Dum.-Cours.) G. Don Polygonum aviculare L. Muscari neglectum Guss. ex Ten. Lolium perenne L. Lespedeza procumbens Michx. Polygonum glaucum Nutt. Myosotis macrosperma Englem. Lolium pratense (Huds.) Darbysh. Myosotis stricta Link ex Roemer & Lespedeza repens (L.) W. Bart. Polypremum procumbens L. J.A.Schultes Lonicera japonica Thunb. Polystichum acrostichoides (Michx.) Lespedeza stuevei Nutt. Schott Myosotis verna Nutt. Lonicera sempervirens L. Lespedeza virginica (L.) Britt. Pontederia cordata L. var. cordata Myosurus minimus L. Lotus tenuis Waldst. & Kit. ex Willd. Najas gracillima (A. Braun ex Leucanthemum vulgare Lam. Populus alba L. Engelm.) Magnus Ludwigia alternifolia L. Populus deltoides Bartram ex Najas guadalupensis (Spreng.) Magnus Liatris pilosa (Aiton) Willd. Marshall ssp. deltoides var. guadalupensis Ludwigia decurrens Walter Ligustrum sinense Louriere Populus grandidentata Michx. Najas minor All. Ludwigia palustris (L.) Elliott Lilaeopsis chinensis (L.) Kuntze Potentilla canadensis L. Narcissus pseudonarcissus L. Lunaria annua Linnaeus Lilium lancifolium Thunb. Potentilla recta L. Nuphar advena (Ait.) Ait.f. Lupinus perennis L. Limonium carolinianum (Walter) Nuttallanthus canadensis (L.) D.A. Luzula bulbosa (Wood) Smyth & Britton Potentilla simplex Michx. Sutton Smyth Lindera benzoin (L.) Blume Proserpinaca palustris L. Nymphaea odorata Aiton ssp. odorata Luzula echinata (Small) F.J. Hermann Lindernia dubia (L.) Pennell var. anagallidea (Michx.) Cooperrider Prunella vulgaris L. Nyssa biflora Walt. Lycium barbarum L. Lindernia dubia (L.) Pennell var. dubia Prunus cerasus L. Nyssa sylvatica Marshall Lycopus virginicus L. Prunus serotina Ehrhart ssp. Linum intercursum Bickn. serotina Obolaria virginica L. Lyonia mariana (L.) D. Don Linum medium (Planch.) Britton var. Pseudognaphalium obtusifolium (L.) texanum (Planch.) Fern. Hilliard & Burtt Oenothera biennis L. complex Lysimachia ciliata L. Linum usitatissimum L. Pteridium aquilinum (L.) Kuhn Oenothera fruticosa L. ssp. fruticosa Lysimachia nummularia L. Ptilimnium capillaceum (Michx.) Linum virginianum L. Raf. Oenothera laciniata Hill Lysimachia terrestris (L.) B.S.P. Pueraria montana (Loureiro) Merritt Liparis liliifolia (L.) L.C.Rich. ex Ker- var. lobata (Willd.) Maesen & S. Gawl. Almeida Onoclea sensibilis L. Lythrum lineare L. Ophioglossum pycnostichum (Fernald) Liquidambar styraciflua L. Pycnanthemum tenuifolium Schrad. A. & D. Love Maclura pomifera (Raf.) Schneid. Pyrrhopappus carolinianus (Walt.) Opuntia humifusa (Raf.) Raf. var. Liriodendron tulipifera L. DC. humifusa Magnolia virginiana L. Maianthemum racemosum (L.) Link Listera australis Lindl. Quercus alba Linnaeus Ornithogalum umbellatum L. ssp. racemosum Lithospermum canescens (Michx.) Lehm. Quercus coccinea Muenchhausen Osmunda spectabilis Willd. Malus angustifolia (Aiton) Michx. Osmundastrum cinnamomeum (L.) C. Lobelia cardinalis L. Quercus falcata Michaux Presl var. cinnamomeum Malva neglecta Wallroth Quercus marilandica Muenchhausen Lobelia inflata L. var. marilandica Oxalis dillenii Jacquin Matelea carolinensis (Jacq.) Woods. Lobelia nuttallii J. A.Schultes Quercus montana Linnaeus Oxalis stricta L. Medeola virginiana L. Lobelia puberula Michaux Quercus nigra Linnaeus Oxalis violacea L. Medicago lupulina L. Lolium arundinaceum (Schreb.) Darbysh. Quercus palustris Muenchhausen Oxydendrum arboreum (L.) DC. Medicago sativa L. Lolium perenne L. Quercus phellos Linnaeus Oxypolis rigidior (L.) Raf. Melampyrum lineare Desr. Lonicera fragrantissima Lindl. & Packera anonyma (Wood) W.A. Weber Paxton Quercus rubra Linnaeus var. rubra & A. Love Melia azedarach L. Lonicera japonica Thunb. Quercus stellata Wangenheim Panicum capillare L. ssp. capillare Melilotus albus Medikus Panicum dichotomiflorum Michx. var. Lonicera sempervirens L. Quercus velutina Lamarck dichotomiflorum Melilotus indicus (L.) All. Ludwigia alternifolia L. Ranunculus bulbosus L. Panicum verrucosum Muhl. Melilotus officinalis (L.) Lam. Ludwigia decurrens Walter Ranunculus hederaceus L. Panicum virgatum L. Melissa officinalis L. Ludwigia palustris (L.) Elliott Ranunculus parviflorus L. Papaver dubium L. Melothria pendula L. Ranunculus recurvatus Poir. var. Parathelypteris noveboracensis (L.) Lupinus perennis L. recurvatus Ching Menispermum canadense L. Luzula acuminata Raf. Ranunculus sardous Crantz Parnassia asarifolia Vent. Mentha canadensis L. Luzula bulbosa (Wood) Smyth & Ranunculus sceleratus L. var. Parthenocissus quinquefolia (L.) Smyth sceleratus Planch. Mentha spicata L. Micranthes virginiensis (Michaux) Luzula echinata (Small) F.J. Hermann Reynoutria japonica Houttuyn Paspalum dilatatum Poir. Small Microstegium vimineum (Trin.) A. Lycium barbarum L. Rhexia mariana L. var. mariana Paspalum floridanum Michx. Camus Lycopodiella alopecuroides (L.) Cranfill Rhexia virginica L. Paspalum laeve Michx. Mikania scandens (L.) Willd. Lycopodiella appressa (Chapman) Rhododendron periclymenoides Cranfill (Michx.) Shinners Paspalum setaceum Michx. Mimulus alatus Aiton Lycopodioides apodum (L.) Kuntze Rhododendron viscosum (L.) Torr. Passiflora lutea L. Mimulus ringens L. var. ringens Lycopus virginicus L. Rhus copallinum L. Paulownia tomentosa (Thunb.) Steud. Miscanthus sinensis Anderss. Lygodium palmatum (Bernh.) Sw. Rhus glabra L. Peltandra virginica (L.) Schott Mitchella repens L. Lyonia ligustrina (L.) DC. var. Rhynchospora capitellata (Michaux) ligustrina Vahl Penstemon laevigatus Aiton Mitella diphylla L. Rhynchospora glomerata (L.) Vahl Lyonia mariana (L.) D. Don var. glomerata Penthorum sedoides L. Mollugo verticillata L. Lysimachia ciliata L. Robinia pseudoacacia L. Perilla frutescens (L.) Britt. Monarda punctata L. var. punctata Lysimachia quadrifolia L. Rosa carolina L. ssp. carolina Persicaria arifolia (L.) Haraldson Monotropa uniflora L. Lythrum lineare L. Rosa multiflora Thunb. ex Murr. Persicaria lapathifolia (L.) Gray Morella cerifera (L.) Small Maclura pomifera (Raf.) Schneid. Rosa palustris Marsh. Persicaria longiseta (Bruijn) Kitagawa Morus alba L. Magnolia tripetala (L.) L. Rubus cuneifolius Pursh Persicaria maculosa Gray Morus rubra L. Magnolia virginiana L. Rubus flagellaris Willd. Persicaria pensylvanica (L.) M. Gomez Muhlenbergia schreberi J.F. Gmel. Maianthemum racemosum (L.) Link Murdannia keisak (Hasskarl) Handel- ssp. racemosum Rubus hispidus L. Persicaria punctata (Ell.) Small Mazzetti Persicaria sagittata (L.) H. Gross ex Malaxis unifolia Michaux Rubus occidentalis L. Nakai Muscari neglectum Guss. ex Ten. Malus pumila P. Mill. Rubus pensilvanicus Poir. Persicaria virginiana (L.) Gaertn. Myosotis macrosperma Englem. Phegopteris hexagonoptera (Michx.) Myosotis stricta Link ex Roemer & Matelea carolinensis (Jacq.) Woods. Rubus trivialis Michx. Fee J.A.Schultes Matelea decipiens (Alexander) Woods. Rudbeckia hirta L. Philadelphus inodorus L. Myosotis verna Nutt. Ruellia caroliniensis (Gmelin) Medeola virginiana L. Steudel Phlox paniculata L. Myriophyllum spicatum L. Phoradendron leucarpum (Raf.) Medicago lupulina L. Rumex acetosella L. Reveal & M.C. Johnston ssp. leucarpum Narcissus pseudonarcissus L. Phryma leptostachya L. var. Melia azedarach L. Rumex crispus L. ssp. crispus leptostachya Nemophila apylla (L.) Brummitt Physalis longifolia Nuttall var. Melilotus albus Medikus Rumex obtusifolius L. subglabrata (Mackenzie & Bush) Cronq. Nepeta cataria L. Phytolacca americana L. var. Melilotus officinalis (L.) Lam. Ruppia maritima L. americana Nuphar advena (Ait.) Ait.f. Nuttallanthus canadensis (L.) D.A. Melothria pendula L. Sabatia angularis (L.) Pursh Pilea pumila (L.) Gray Sutton Menispermum canadense L. Sabatia stellaris Pursh Pinus taeda L. Nyssa sylvatica Marshall Sagina decumbens (Ell.) Torrey & A. Mentha ×piperita L. Gray ssp. decumbens Pinus virginiana Miller Oenothera biennis L. complex Sagittaria lancifolia L. var. media Mentha ×rotundifolia (L.) Huds. (Micheli) Bogin Piptochaetium avenaceum (L.) Parodi Oenothera fruticosa L. ssp. fruticosa Pityopsis aspera (Shuttlw. ex Small) Microthlaspi perfoliatum(Linnaeus) F. Small var. adenolepis (Fern.) Semple & K. Meyer Sagittaria latifolia Willdenow Bowers Oenothera laciniata Hill Pityopsis graminifolia (Michx.) Nutt. Mikania scandens (L.) Willd. Salicornia virginica L. var. latifolia (Fern.) Semple & Bowers Onoclea sensibilis L. Ophioglossum pycnostichum (Fernald) Mimulus alatus Aiton Salix nigra Marsh. Plantago aristata Michxaux A. & D. Love Opuntia humifusa (Raf.) Raf. var. Mimulus ringens L. var. ringens Salvia lyrata L. Plantago lanceolata L. humifusa Sambucus canadensis L. var. Miscanthus sinensis Anderss. canadensis Plantago rugelii Dcne. Ornithogalum umbellatum L. Samolus valerandi L. ssp. Mitchella repens L. parviflorus (Raf.) Hulten Plantago virginica L. Orontium aquaticum L. Sanicula canadensis L. var. Mollugo verticillata L. canadensis Platanthera clavellata (Michx.) Luer Osmorhiza longistylis (Torr.) DC. Monarda punctata L. var. punctata Sassafras albidum (Nutt.) Nees Platanthera lacera (Michx.) G.Don Osmunda spectabilis Willd. Osmundastrum cinnamomeum (L.) C. Monotropa uniflora L. Saururus cernuus L. Platanus occidentalis L. Presl var. cinnamomeum Sceptridium biternatum (Savigny) Morella caroliniensis (P. Miller) Small Lyon Pluchea odorata (L.) Cass. Oxalis articulata Savigny Sceptridium dissectum (Sprengel) Morella cerifera (L.) Small Lyon Poa annua L. Oxalis dillenii Jacquin Schizachyrium scoparium (Michx.) Morella pensylvanica (Mirbel) Kartesz Nash var. scoparium Poa autumnalis Muhl. ex Ell. Oxalis stricta L. Schoenoplectus pungens (Vahl) Palla Morus alba L. var. pungens Poa compressa L. Oxalis violacea L. Schoenoplectus tabernaemontani Morus rubra L. (Gmelin) Palla Poa cuspidata Nutt. Oxydendrum arboreum (L.) DC. Muhlenbergia schreberi J.F. Gmel. Scirpus cyperinus (L.) Kunth Poa pratensis L. ssp. pratensis Oxypolis rigidior (L.) Raf. Murdannia keisak (Hasskarl) Handel- Packera anonyma (Wood) W.A. Weber Mazzetti Scleranthus annuus L. Poa sylvestris Gray & A. Love Muscari comosum (L.) P. Mill. Scutellaria integrifolia L. Podophyllum peltatum L. Panax quinquefolius L. Scutellaria lateriflora L. var. Muscari neglectum Guss. ex Ten. lateriflora Polygala curtissii Gray Panicum amarum Ell. Panicum dichotomiflorum Michx. var. Myosotis laxa Lehm. Sericocarpus asteroides (L.) B.S.P. Polygala incarnata L. dichotomiflorum Myosotis stricta Link ex Roemer & Sesuvium maritimum (Walter) J.A.Schultes Britton, Stearns, & Poggenberg Polygala lutea L. Panicum verrucosum Muhl. Narcissus poeticus L. Setaria faberi Herrm. Polygala mariana P. Mill. Panicum virgatum L. Narcissus pseudonarcissus L. Setaria magna Griseb. Polygonatum biflorum (Walt.) Ell. Panicum virgatum L. var. virgatum Narcissus ×incomparabilis P. Mill. (pro sp.) Setaria parviflora (Poir.) Kerguelen Polygonum aviculare L. Papaver dubium L. Parathelypteris noveboracensis (L.) Nicandra physalodes (L.) Gaertner Setaria viridis (L.) Beauv. var. viridis Polypodium virginianum complex Ching Parathelypteris simulata (Davenport) Nuphar advena (Ait.) Ait.f. Sida spinosa L. Polypremum procumbens L. Holttum Nuttallanthus canadensis (L.) D.A. Polystichum acrostichoides (Michx.) Parietaria pensylvanica Muhl. ex Sutton Silene antirrhina L. Schott Willd. Parthenocissus quinquefolia (L.) Nymphaea odorata Aiton ssp. odorata Sisyrinchium angustifolium P. Mill. Pontederia cordata L. var. cordata Planch. Nyssa sylvatica Marshall Sium suave Walt. Populus alba L. Paspalum dilatatum Poir. Populus deltoides Bartram ex Marshall Obolaria virginica L. Smilax bona-nox L. var. bona-nox ssp. deltoides Paspalum floridanum Michx. Oenothera biennis L. complex Smilax glauca Walt. Populus grandidentata Michx. Paspalum laeve Michx. Oenothera fruticosa L. ssp. fruticosa Smilax rotundifolia L. Portulaca oleracea L. Paspalum setaceum Michx. Solanum carolinense L. var. Oenothera laciniata Hill carolinense Potamogeton nodosus L. Passiflora lutea L. Oenothera parviflora L. Solanum ptycanthum Dunal Potentilla canadensis L. Paulownia tomentosa (Thunb.) Steud. Oenothera perennis L. Solidago altissima L. var. altissima Potentilla indica (Andr.) T. Wolf Peltandra virginica (L.) Schott Onoclea sensibilis L. Solidago bicolor L. Potentilla recta L. Penthorum sedoides L. Ophioglossum pycnostichum (Fernald) A. & D. Love Solidago caesia L. var. caesia Potentilla simplex Michx. Perilla frutescens (L.) Britt. Opuntia humifusa (Raf.) Raf. var. humifusa Solidago erecta Pursh Prenanthes serpentaria Pursh Persicaria arifolia (L.) Haraldson Ornithogalum umbellatum L. Solidago fistulosa P. Mill. Proserpinaca palustris L. Persicaria hydropiper (L.) Spach Persicaria hydropiperoides (Michx.) Orontium aquaticum L. Solidago juncea Ait. Prunella vulgaris L. Small Solidago nemoralis Ait. var. Osmunda spectabilis Willd. nemoralis Prunus serotina Ehrhart ssp. serotina Persicaria longiseta (Bruijn) Kitagawa Osmundastrum cinnamomeum (L.) C. Pseudognaphalium obtusifolium (L.) Presl var. cinnamomeum Solidago odora Ait. Hilliard & Burtt Persicaria maculosa Gray Pseudognaphalium stramineum Oxalis dillenii Jacquin Solidago rugosa P. Mill. (Kunth) W.A. Weber Persicaria pensylvanica (L.) M. Gomez Oxalis florida Salisbury Solidago sempervirens L. Pteridium aquilinum (L.) Kuhn Persicaria punctata (Ell.) Small Solidago sempervirens L. var. Persicaria sagittata (L.) H. Gross ex Oxalis stricta L. mexicana (L.) Fern. Ptilimnium capillaceum (Michx.) Raf. Nakai Pueraria montana (Loureiro) Merritt Oxalis violacea L. Sonchus asper (L.) Hill var. lobata (Willd.) Maesen & S. Persicaria virginiana (L.) Gaertn. AlmeidaPycnanthemum incanum (L.) Michx. Phegopteris hexagonoptera (Michx.) Oxydendrum arboreum (L.) DC. Sorghum halepense (L.) Pers. var. incanum Fee Oxypolis rigidior (L.) Raf. Spartina alterniflora Loisel. Pycnanthemum tenuifolium Schrad. Phleum pratense L. Packera anonyma (Wood) W.A. Weber & A. Love Spartina cynosuroides (L.) Roth Pyrrhopappus carolinianus (Walt.) DC. Phlox paniculata L. Phragmites australis (Cav.) Trin. ex Packera aurea (L.) A. & D. Love Spartina patens (Ait.) Muhl. Quercus alba Linnaeus Steud. ssp. australis Sphenopholis nitida (Biehler) Phryma leptostachya L. var. Panax trifolius L. Scribn. Quercus coccinea Muenchhausen leptostachya Sphenopholis pensylvanica (L.) A.S. Panicum amarum Ell. Hitchc. Quercus falcata Michaux Phyla lanceolata (Michx.) Greene Panicum dichotomiflorum Michx. var. Spiranthes lacera (Raf.) Raf. var. dichotomiflorum gracilis (Bigelow) Luer Quercus imbricaria Michaux Phyllanthus tenellus Roxb. Quercus marilandica Muenchhausen Physalis longifolia Nuttall var. Panicum verrucosum Muhl. Spiranthes vernalis Engelm. & Gray var. marilandica subglabrata (Mackenzie & Bush) Cronq. Panicum virgatum L. Spirodela polyrrhiza (L.) Schleid. Quercus michauxii Nuttall Physalis virginiana P. Miller Parathelypteris noveboracensis (L.) Ching Stachys floridana Shuttlw. ex Benth. Quercus montana Linnaeus Physostegia virginiana (L.) Benth. Phytolacca americana L. var. Parthenium integrifolium L. Stellaria media (L.) Vill. Quercus phellos Linnaeus americana Parthenocissus quinquefolia (L.) Planch. Strophostyles helvola (L.) Ell. Quercus rubra Linnaeus var. rubra Pilea pumila (L.) Gray Paspalum floridanum Michx. Stylosanthes biflora (L.) B.S.P. Quercus stellata Wangenheim Pinus taeda L. Symphyotrichum dumosum (L.) Paspalum laeve Michx. Nesom var. dumosum Ranunculus abortivus L. Pinus virginiana Miller Symphyotrichum pilosum (Willd.) Pityopsis graminifolia (Michx.) Nutt. Paspalum setaceum Michx. Nesom Ranunculus bulbosus L. var. latifolia (Fern.) Semple & Bowers Symphyotrichum subulatum Passiflora incarnata L. (Michx.) Nesom Ranunculus hispidus Michx. Plantago aristata Michxaux Symphyotrichum tenuifolium (L.) Passiflora lutea L. Nesom Ranunculus parviflorus L. Plantago lanceolata L. Symplocarpus foetidus (L.) Salisbury Ranunculus recurvatus Poir. var. Pastinaca sativa L. ex W.P. C. Barton recurvatus Plantago rugelii Dcne. Taraxacum officinale G.H. Weber ex Paulownia tomentosa (Thunb.) Steud. Wiggers Ranunculus sardous Crantz Plantago virginica L. Ranunculus sceleratus L. var. Pedicularis canadensis L. Tephrosia virginiana (L.) Pers. sceleratus Platanthera clavellata (Michx.) Luer Peltandra virginica (L.) Schott Teucrium canadense L. Raphanus raphanistrum Linnaeus Platanus occidentalis L. Penstemon laevigatus Aiton Thalictrum pubescens Pursh Reynoutria japonica Houttuyn Pluchea odorata (L.) Cass. Thelypteris palustris Schott var. Penthorum sedoides L. pubescens (Lawson) Fern. Rhexia mariana L. var. mariana Poa annua L. Thermopsis mollis (Michx.) M.A. Perilla frutescens (L.) Britt. Curtis ex Gray Rhexia virginica L. Poa autumnalis Muhl. ex Ell. Rhododendron atlanticum (Ashe) Persicaria arifolia (L.) Haraldson Tipularia discolor (Pursh) Nutt Rehder Poa compressa L. Toxicodendron radicans (L.) Kuntze Rhododendron periclymenoides Persicaria hydropiper (L.) Spach var. radicans (Michx.) Shinners Poa pratensis L. ssp. pratensis Persicaria hydropiperoides (Michx.) Small Toxicodendron vernix (L.) Kuntze Rhododendron viscosum (L.) Torr. Podophyllum peltatum L. Persicaria longiseta (Bruijn) Kitagawa Trichostema dichotomum L. Rhus copallinum L. Polygala curtissii Gray Tridens flavus (L.) A.S. Hitchc. var. Persicaria maculosa Gray flavus Rhus glabra L. Polygala incarnata L. Rhynchospora capitellata (Michaux) Persicaria pensylvanica (L.) M. Gomez Trifolium arvense L. Vahl Polygala mariana P. Mill. Rhynchospora glomerata (L.) Vahl var. Persicaria punctata (Ell.) Small Trifolium aureum Pollich glomerata Polygonatum biflorum (Walt.) Ell. Persicaria sagittata (L.) H. Gross ex Rhynchospora macrostachya Torrey ex Nakai Trifolium campestre Schreb. Gray Polygonum aviculare L. Persicaria virginiana (L.) Gaertn. Trifolium dubium Sibthorp Robinia hispida L. Polygonum ramosissimum Michx. Phaseolus polystachios (L.) BSP Trifolium incarnatum L. Robinia pseudoacacia L. Polypodium virginianum complex Phegopteris hexagonoptera (Michx.) Fee Trifolium pratense L. Rosa carolina L. ssp. carolina Polypremum procumbens L. Rosa luciae Franchet & Rochebrune ex Polystichum acrostichoides (Michx.) Phleum pratense L. Trifolium repens L. Crepin Schott Phlox paniculata L. Triglochin striata Ruiz & Pavon Rosa multiflora Thunb. ex Murr. Pontederia cordata L. var. cordata Phoradendron leucarpum (Raf.) Triodanis perfoliata (L.) Nieuwl. Reveal & M.C. Johnston ssp. leucarpum var. perfoliata Rosa palustris Marsh. Populus alba L. Phragmites australis (Cav.) Trin. ex Steud. ssp. australis Triosteum perfoliatum L. Rotala ramosior (L.) Koehne Populus grandidentata Michx. Phryma leptostachya L. var. Triplasis purpurea (Walt.) Chapman leptostachya var. purpurea Rubus bifrons Vest Populus heterophylla L. Tripsacum dactyloides (L.) L. var. Physalis heterophylla Nees dactyloides Rubus discolor Weihe & Nees Portulaca oleracea L. Phytolacca americana L. var. americana Typha angustifolia L. Rubus flagellaris Willd. Potamogeton diversifolius Raf. Pilea fontana (Lunell) Rydb. Typha latifolia L. Rubus hispidus L. Potamogeton epihydrus Raf. Pilea pumila (L.) Gray Ulmus rubra Muhl. Rubus occidentalis L. Potamogeton nodosus L. Pinus echinata Miller Uvularia sessilifolia L. Rubus pensilvanicus Poir. Potamogeton perfoliatus L. Pinus strobus L. Vaccinium fuscatum Ait. Rubus phoenicolasius Maxim. Potentilla canadensis L. Pinus taeda L. Vaccinium pallidum Ait. Rudbeckia hirta L. Potentilla indica (Andr.) T. Wolf Pinus virginiana Miller Vaccinium stamineum L. Rudbeckia laciniata L. var. laciniata Potentilla norvegica L. Vaccinium ×margarettiae Ashe (pro Piptochaetium avenaceum (L.) Parodi sp.) Rudbeckia triloba L. var. triloba Potentilla recta L. Pityopsis aspera (Shuttlw. ex Small) Small var. adenolepis (Fern.) Semple & Vaccinium ×marianum S. Wats. (pro Proboscidea louisianica (P. Miller) Bowers sp.) Ruellia caroliniensis (Gmelin) Steudel Thellung Pityopsis graminifolia (Michx.) Nutt. var. latifolia (Fern.) Semple & Bowers Valerianella locusta (L.) Latterade Rumex acetosella L. Proserpinaca palustris L. Plantago aristata Michxaux Valerianella radiata (L.) Dufr. Rumex crispus L. ssp. crispus Prunella vulgaris L. Plantago lanceolata L. Veratrum viride Aiton var. viride Rumex verticillatus L. Prunus avium (L.) L. Prunus munsoniana W. Wight & Plantago rugelii Dcne. Verbascum blattaria L. Sabatia angularis (L.) Pursh Hedrick Plantago virginica L. Verbascum thapsus L. ssp. thapsus Sabatia stellaris Pursh Prunus serotina Ehrhart ssp. serotina Pseudognaphalium obtusifolium (L.) Platanthera clavellata (Michx.) Luer Verbesina occidentalis (L.) Walt. Sacciolepis striata (L.) Nash Hilliard & Burtt Sagina decumbens (Ell.) Torrey & A. Platanthera cristata (Michx.) Lindl. Vernonia noveboracensis (L.) Michx. Gray ssp. decumbens Pteridium aquilinum (L.) Kuhn Platanthera lacera (Michx.) G.Don Veronica arvensis L. Sagittaria graminea Michaux Ptilimnium capillaceum (Michx.) Raf. Sagittaria lancifolia L. var. media Pueraria montana (Loureiro) Merritt Platanthera peramoena (Gray) Gray Veronica hederifolia L. (Micheli) Bogin var. lobata (Willd.) Maesen & S. Platanus occidentalis L. Veronica peregrina L. var. peregrina Sagittaria latifolia Willdenow AlmeidaPycnanthemum tenuifolium Schrad. Pluchea odorata (L.) Cass. Veronica persica Poiret Sagittaria subulata (L.) Buch. Pyracantha coccinea M. Roemer Poa annua L. Viburnum acerifolium L. Salix nigra Marsh. Pyrrhopappus carolinianus (Walt.) DC. Poa autumnalis Muhl. ex Ell. Viburnum dentatum L. Salix occidentalis Walter Pyrularia pubera Michx. Poa bulbosa L. ssp. vivipara (Koel.) Arcang. Viburnum nudum L. Salvia lyrata L. Pyrus communis L. Sambucus canadensis L. var. Poa compressa L. Viburnum prunifolium L. canadensis Quercus alba Linnaeus Samolus valerandi L. ssp. parviflorus Poa pratensis L. ssp. pratensis Vicia grandiflora Scop. (Raf.) Hulten Quercus coccinea Muenchhausen Poa sylvestris Gray Vicia hirsuta (L.) S.F. Gray Sanguinaria canadensis L. Quercus falcata Michaux Quercus marilandica Muenchhausen Poa trivialis L. Vicia sativa L. Sanicula canadensis L. var. canadensis var. marilandica Podophyllum peltatum L. Vinca minor L. Sanicula smallii Bickn. Quercus michauxii Nuttall Polygala incarnata L. Viola arvensis Murr. Saponaria officinalis L. Quercus montana Linnaeus Polygala lutea L. Viola bicolor Pursh Sassafras albidum (Nutt.) Nees Quercus muehlenbergii Engelmann Polygala mariana P. Mill. Viola cucullata Ait. Saururus cernuus L. Quercus palustris Muenchhausen Sceptridium dissectum (Sprengel) Polygonatum biflorum (Walt.) Ell. Viola labradorica Schrank Lyon Quercus phellos Linnaeus Schizachyrium scoparium (Michx.) Polygonum aviculare L. Viola primulifolia L. Nash var. scoparium Quercus rubra Linnaeus var. rubra Schoenoplectus americanus (Pers.) Polygonum erectum L. Viola sagittata Aiton Volk. ex Schinz & Keller Quercus stellata Wangenheim Schoenoplectus pungens (Vahl) Palla Polygonum glaucum Nutt. Vitis labrusca L. var. pungens Quercus velutina Lamarck Vitis rotundifolia Michx. var. Schoenoplectus tabernaemontani Polypogon monspeliensis (L.) Desf. rotundifolia (Gmelin) Palla Ranunculus abortivus L. Polypremum procumbens L. Vulpia myuros (L.) K.C. Gmel. Scirpus cyperinus (L.) Kunth Ranunculus bulbosus L. Polystichum acrostichoides (Michx.) Schott Vulpia octoflora (Walt.) Rydb. Scirpus georgianus Harper Ranunculus hederaceus L. Pontederia cordata L. var. cordata Wisteria frutescens (L.) Poir. Scirpus polyphyllus Vahl Ranunculus parviflorus L. Ranunculus recurvatus Poir. var. Populus alba L. Wolffia brasiliensis Weddell Scleranthus annuus L. recurvatus Populus deltoides Bartram ex Marshall ssp. deltoides Wolffia columbiana Karst. Scutellaria elliptica Muhl. ex Spreng. Ranunculus sardous Crantz Ranunculus sceleratus L. var. Populus grandidentata Michx. Woodwardia areolata (L.) T. Moore Scutellaria integrifolia L. sceleratus Scutellaria lateriflora L. var. Portulaca oleracea L. Woodwardia virginica (L.) Sm. lateriflora Raphanus raphanistrum Linnaeus Potamogeton diversifolius Raf. Xanthium strumarium L. Securigera varia (L.) Lassen Reynoutria japonica Houttuyn Potamogeton epihydrus Raf. Yucca filamentosa L. Sedum sarmentosum Bunge Rhexia mariana L. var. mariana Potamogeton foliosus Raf. var. foliosus Zannichellia palustris L. Senecio vulgaris L. Rhexia virginica L. Rhododendron periclymenoides Potamogeton nodosus L. Zizania aquatica L. var. aquatica Sericocarpus asteroides (L.) B.S.P. (Michx.) Shinners Potentilla canadensis L. Sericocarpus linifolius (L.) B.S.P. Rhododendron viscosum (L.) Torr. Potentilla indica (Andr.) T. Wolf Setaria faberi Herrm. Rhus copallinum L. Potentilla recta L. Setaria magna Griseb. Rhus glabra L. Potentilla simplex Michx. Setaria parviflora (Poir.) Kerguelen Rhus typhina L. Rhynchospora capitellata (Michaux) Prenanthes serpentaria Pursh Setaria viridis (L.) Beauv. var. viridis Vahl Rhynchospora glomerata (L.) Vahl var. Prunella vulgaris L. Sida spinosa L. glomerata Rhynchospora macrostachya Torrey ex Prunus angustifolia Marshall Silene antirrhina L. Gray Prunus munsoniana W. Wight & Hedrick Silene latifolia Poir. Robinia pseudoacacia L. Rorippa palustris (L.) Besser ssp. Prunus persica (L.) Batsch Silene stellata (L.) Ait. f. fernaldiana (Butters & Abbe) Jonsell Prunus serotina Ehrhart ssp. serotina Silphium asteriscus L. Rorippa sylvestris (Linnaeus) Besser Pseudognaphalium obtusifolium (L.) Hilliard & Burtt Sisymbrium altissimum Linnaeus Rosa bracteata J.C. Wendl. Sisymbrium officinale (Linnaeus) Pteridium aquilinum (L.) Kuhn Scopoli Rosa carolina L. ssp. carolina Ptilimnium capillaceum (Michx.) Raf. Sisyrinchium angustifolium P. Mill. Rosa multiflora Thunb. ex Murr. Pueraria montana (Loureiro) Merritt var. lobata (Willd.) Maesen & S. Sisyrinchium atlanticum Bickn. Rosa palustris Marsh. AlmeidaPyrrhopappus carolinianus (Walt.) DC. Sisyrinchium mucronatum Michx. Rosa rugosa Thunb. Rottboellia cochinchinensis (Lour.) Pyrus communis L. Sium suave Walt. Clayton Smallanthus uvedalia (L.) Mackenzie Quercus alba Linnaeus ex Small Rubus bifrons Vest Quercus coccinea Muenchhausen Smilax bona-nox L. var. bona-nox Rubus flagellaris Willd. Quercus falcata Michaux Smilax glauca Walt. Rubus hispidus L. Quercus margarettae Ashe ex Small Smilax herbacea L. Rubus occidentalis L. Quercus marilandica Muenchhausen var. marilandica Smilax rotundifolia L. Rubus pensilvanicus Poir. Solanum carolinense L. var. Quercus michauxii Nuttall carolinense Rubus phoenicolasius Maxim. Quercus montana Linnaeus Solanum ptycanthum Dunal Rudbeckia hirta L. Quercus nigra Linnaeus Solidago altissima L. var. altissima Rudbeckia triloba L. var. triloba Quercus palustris Muenchhausen Solidago bicolor L. Ruellia caroliniensis (Gmelin) Steudel Quercus phellos Linnaeus Solidago caesia L. var. caesia Rumex acetosella L. Quercus rubra Linnaeus var. rubra Solidago erecta Pursh Rumex altissimus Wood Quercus stellata Wangenheim Solidago juncea Ait. Rumex conglomeratus Murr. Quercus velutina Lamarck Solidago nemoralis Ait. var. nemoralis Rumex crispus L. ssp. crispus Ranunculus abortivus L. Solidago odora Ait. Rumex obtusifolius L. Ranunculus bulbosus L. Solidago pinetorum Small Rumex pulcher L. Ranunculus hispidus Michx. Solidago rugosa P. Mill. Rumex verticillatus L. Ranunculus recurvatus Poir. var. Solidago rugosa P. Mill. var. aspera recurvatus (Ait.) Fern. Ruppia maritima L. Ranunculus sardous Crantz Solidago sempervirens L. Sabatia angularis (L.) Pursh Ranunculus sceleratus L. var. Solidago ulmifolia Muhl. ex Willd. var. Sagina decumbens (Ell.) Torrey & A. sceleratus ulmifolia Gray ssp. decumbens Raphanus raphanistrum Linnaeus Sonchus asper (L.) Hill Sagittaria australis (J.G.Smith) Small Reynoutria japonica Houttuyn Sophronanthe pilosa (Michx.) Small Sagittaria engelmanniana J.G. Smith Rhexia mariana L. var. mariana Sorghum halepense (L.) Pers. Sagittaria latifolia Willdenow Rhexia virginica L. Sparganium americanum Nutt. Salix nigra Marsh. Rhododendron atlanticum (Ashe) Sparganium eurycarpum Engelm. ex Rehder Gray Salsola kali L. Rhododendron periclymenoides (Michx.) Shinners Spartina alterniflora Loisel. Salvia lyrata L. Sambucus canadensis L. var. Rhododendron viscosum (L.) Torr. Spartina cynosuroides (L.) Roth canadensis Samolus valerandi L. ssp. parviflorus Rhus copallinum L. Spartina patens (Ait.) Muhl. (Raf.) Hulten Rhus glabra L. Spartina pectinata Link Sanguinaria canadensis L. Rhynchosia difformis (Ell.) DC. Spergularia salina J. & C. Presl Sanicula canadensis L. var. canadensis Rhynchospora capitellata (Michaux) Sphenopholis obtusata (Michx.) Vahl Scribn. var. obtusata Saponaria officinalis L. Rhynchospora glomerata (L.) Vahl var. Sphenopholis pensylvanica (L.) A.S. glomerata Hitchc. Sassafras albidum (Nutt.) Nees Rhynchospora gracilenta Gray Spiraea tomentosa L. Saururus cernuus L. Rhynchospora inexpansa (Michaux) Sceptridium biternatum (Savigny) Vahl Stachys hispida Pursh Lyon Rhynchospora microcephala (Britton) Sceptridium dissectum (Sprengel) Britton ex Small Stellaria graminea L. Lyon Schizachyrium scoparium (Michx.) Robinia pseudoacacia L. Stellaria media (L.) Vill. Nash var. scoparium Schoenoplectus americanus (Pers.) Rosa canina L. Strophostyles helvola (L.) Ell. Volk. ex Schinz & Keller Schoenoplectus pungens (Vahl) Palla Rosa carolina L. ssp. carolina Stylosanthes biflora (L.) B.S.P. var. pungens Rosa luciae Franchet & Rochebrune ex Schoenoplectus purshianus (Fernald) Crepin Symphoricarpos orbiculatus Moench Strong var. purshianus Symphyotrichum dumosum (L.) Nesom Schoenoplectus tabernaemontani Rosa multiflora Thunb. ex Murr. var. dumosum (Gmelin) Palla Symphyotrichum novi-belgii (L.) Rosa palustris Marsh. Nesom Scirpus cyperinus (L.) Kunth Symphyotrichum pilosum (Willd.) Rubus bifrons Vest Nesom Scirpus pendulus Muhlenberg Symphyotrichum puniceum (L.) A.& D. Rubus cuneifolius Pursh Love var. puniceum Scirpus polyphyllus Vahl Symphyotrichum racemosum (Ell.) Rubus flagellaris Willd. Nesom var. racemosum Scleranthus annuus L. Symphyotrichum subulatum (Michx.) Rubus hispidus L. Nesom Scleria pauciflora Muhl. ex Willd. Symphyotrichum tenuifolium (L.) Rubus occidentalis L. Nesom Scrophularia marilandica L. Symphyotrichum undulatum (L.) Rubus pensilvanicus Poir. Nesom Scutellaria elliptica Muhl. ex Spreng. Symplocarpus foetidus (L.) Salisbury Scutellaria elliptica Muhl. ex Spreng. Rubus phoenicolasius Maxim. ex W.P. C. Barton var. elliptica Rudbeckia hirta L. Symplocos tinctoria (L.) L'Her. Scutellaria integrifolia L. Taraxacum officinale G.H. Weber ex Scutellaria lateriflora L. var. Rudbeckia laciniata L. var. laciniata Wiggers lateriflora Taxodium distichum (L.) Richard var. Ruellia caroliniensis (Gmelin) Steudel distichum Sedum sarmentosum Bunge Teesdalia nudicaulis (Linnaeus) Aiton Senna hebecarpa (Fernald) Irwin & Rumex acetosella L. f. Barneby Rumex conglomeratus Murr. Tephrosia virginiana (L.) Pers. Senna marilandica (L.) Link Rumex crispus L. ssp. crispus Teucrium canadense L. Senna obtusifolia (L.) Irwin & Barneby Rumex obtusifolius L. Thalictrum pubescens Pursh Sericocarpus asteroides (L.) B.S.P. Thelypteris palustris Schott var. Rumex pulcher L. pubescens (Lawson) Fern. Sericocarpus linifolius (L.) B.S.P. Rumex verticillatus L. Tipularia discolor (Pursh) Nutt Setaria faberi Herrm. Ruppia maritima L. Toxicodendron pubescens P.Miller Setaria parviflora (Poir.) Kerguelen Toxicodendron radicans (L.) Kuntze Setaria pumila (Poir.) Roemer & Sabatia angularis (L.) Pursh var. radicans Schultes ssp. pumila Sabatia dodecandra (L.) BSP Toxicodendron vernix (L.) Kuntze Setaria viridis (L.) Beauv. var. viridis Sabatia stellaris Pursh Trichostema dichotomum L. Sida spinosa L. Tridens flavus (L.) A.S. Hitchc. var. Sagittaria australis (J.G.Smith) Small flavus Silene antirrhina L. Sagittaria lancifolia L. var. media (Micheli) Bogin Trifolium arvense L. Silene coronaria (L.) Clairville Sagittaria latifolia Willdenow Trifolium campestre Schreb. Silene latifolia Poir. Salix babylonica L. Trifolium dubium Sibthorp Silene stellata (L.) Ait. f. Salix humilis Marshall Trifolium hybridum L. Silphium asteriscus L. Sisymbrium officinale (Linnaeus) Salix nigra Marsh. Trifolium incarnatum L. Scopoli Salpichroa origanifolia (Lam.) Baill. Trifolium pratense L. Sisyrinchium angustifolium P. Mill. Salsola kali L. Trifolium repens L. Sium suave Walt. Triodanis perfoliata (L.) Nieuwl. var. Smallanthus uvedalia (L.) Mackenzie Salvia lyrata L. perfoliata ex Small Sambucus canadensis L. var. Tripsacum dactyloides (L.) L. var. canadensis dactyloides Smilax bona-nox L. var. bona-nox Samolus valerandi L. ssp. parviflorus (Raf.) Hulten Triticum aestivum L. Smilax glauca Walt. Sanguinaria canadensis L. Typha angustifolia L. Smilax rotundifolia L. Solanum carolinense L. var. Sanicula canadensis L. var. canadensis Typha domingensis Pers. carolinense Sanicula odorata (Raf.) K.M. Pryer & L.R. Phillippe Typha latifolia L. Solanum dulcamara L. Sanicula smallii Bickn. Ulmus rubra Muhl. Solanum lycopersicum L. Urochloa platyphylla (Munro ex Saponaria officinalis L. Wright) R. Webster Solanum ptycanthum Dunal Sarcocornia pacifica (Standley) A.J. Scott Uvularia perfoliata L. Solidago altissima L. var. altissima Sassafras albidum (Nutt.) Nees Vaccinium fuscatum Ait. Solidago bicolor L. Saururus cernuus L. Vaccinium pallidum Ait. Solidago caesia L. var. caesia Sceptridium dissectum (Sprengel) Lyon Vaccinium stamineum L. Solidago erecta Pursh Schizachyrium scoparium (Michx.) Nash var. scoparium Valerianella locusta (L.) Latterade Solidago juncea Ait. Schoenoplectus pungens (Vahl) Palla var. pungens Valerianella radiata (L.) Dufr. Solidago nemoralis Ait. var. nemoralis Schoenoplectus tabernaemontani (Gmelin) Palla Verbascum blattaria L. Solidago rugosa P. Mill. Scirpus cyperinus (L.) Kunth Verbascum thapsus L. ssp. thapsus Solidago sempervirens L. Scleranthus annuus L. Verbena hastata L. Sonchus asper (L.) Hill Scleria triglomerata Michaux Verbena urticifolia L. Sonchus oleraceus L. Scutellaria elliptica Muhl. ex Spreng. Verbesina occidentalis (L.) Walt. Sophronanthe pilosa (Michx.) Small Scutellaria integrifolia L. Vernonia glauca (L.) Willd. Sorghum halepense (L.) Pers. Scutellaria lateriflora L. var. lateriflora Vernonia noveboracensis (L.) Michx. Sparganium americanum Nutt. Sericocarpus asteroides (L.) B.S.P. Veronica arvensis L. Spartina alterniflora Loisel. Sericocarpus linifolius (L.) B.S.P. Veronica hederifolia L. Spartina cynosuroides (L.) Roth Setaria magna Griseb. Veronica peregrina L. var. peregrina Spartina patens (Ait.) Muhl. Setaria parviflora (Poir.) Kerguelen Veronica persica Poiret Spartina pectinata Link Sida spinosa L. Viburnum acerifolium L. Spergularia salina J. & C. Presl Silene antirrhina L. Viburnum dentatum L. Sphenopholis nitida (Biehler) Scribn. Sphenopholis obtusata (Michx.) Silene coronaria (L.) Clairville Viburnum nudum L. Scribn. var. obtusata Silene latifolia Poir. Viburnum prunifolium L. Spiraea tomentosa L. Silene stellata (L.) Ait. f. Vicia hirsuta (L.) S.F. Gray Spiranthes vernalis Engelm. & Gray Silene vulgaris (Moench) Garcke Vicia sativa L. Spirodela polyrrhiza (L.) Schleid. Sisymbrium officinale (Linnaeus) Scopoli Vicia villosa Roth ssp. villosa Stellaria media (L.) Vill. Sisyrinchium angustifolium P. Mill. Vinca minor L. Strophostyles helvola (L.) Ell. Strophostyles umbellata (Muhl. ex Sisyrinchium mucronatum Michx. Viola arvensis Murr. Willd.) Britt. Sium suave Walt. Viola bicolor Pursh Stylosanthes biflora (L.) B.S.P. Smilax bona-nox L. var. bona-nox Viola cucullata Ait. Suaeda linearis (Ell.) Moq. Symphyotrichum dumosum (L.) Nesom Smilax glauca Walt. Viola palmata L. var. palmata var. dumosum Symphyotrichum lateriflorum (L.) A.& Smilax herbacea L. Viola pedata L. D. Love Symphyotrichum pilosum (Willd.) Smilax pseudochina L. Viola primulifolia L. Nesom Symphyotrichum pilosum (Willd.) Smilax rotundifolia L. Viola sagittata Aiton Nesom var. pringlei (Gray) Nesom Symphyotrichum puniceum (L.) A.& D. Smilax walteri Pursh Vitis aestivalis Michx. Love var. puniceum Solanum carolinense L. var. Symphyotrichum racemosum (Ell.) carolinense Vitis labrusca L. Nesom var. racemosum Symphyotrichum subulatum (Michx.) Solanum ptycanthum Dunal Vitis riparia Michx. Nesom Vitis rotundifolia Michx. var. Symphyotrichum tenuifolium (L.) Solidago altissima L. var. altissima rotundifolia Nesom Symphyotrichum undulatum (L.) Solidago arguta Ait. Vulpia myuros (L.) K.C. Gmel. Nesom Symplocarpus foetidus (L.) Salisbury Solidago bicolor L. Vulpia octoflora (Walt.) Rydb. ex W.P. C. Barton Solidago caesia L. var. caesia Woodwardia areolata (L.) T. Moore Symplocos tinctoria (L.) L'Her. Solidago erecta Pursh Xanthium strumarium L. Tanacetum vulgare L. Taraxacum officinale G.H. Weber ex Solidago juncea Ait. Xyris torta J.M. Smith Wiggers Taxodium distichum (L.) Richard var. Solidago nemoralis Ait. var. nemoralis Yucca filamentosa L. distichum Teesdalia nudicaulis (Linnaeus) Aiton Solidago odora Ait. Zizania aquatica L. var. aquatica f. Zizaniopsis miliacea (Michx.) Doell & Solidago pinetorum Small Aschers. Tephrosia virginiana (L.) Pers. Solidago rugosa P. Mill. Teucrium canadense L. Solidago sempervirens L. Thalictrum pubescens Pursh Solidago sempervirens L. var. Thelypteris palustris Schott var. mexicana (L.) Fern. pubescens (Lawson) Fern. Sonchus asper (L.) Hill Thymus pulegioides L. Sophronanthe pilosa (Michx.) Small Tilia americana L. Sorghum halepense (L.) Pers. Tipularia discolor (Pursh) Nutt Toxicodendron radicans (L.) Kuntze Sparganium americanum Nutt. var. radicans Spartina alterniflora Loisel. Toxicodendron vernix (L.) Kuntze Spartina cynosuroides (L.) Roth Trichostema dichotomum L. Tridens flavus (L.) A.S. Hitchc. var. Spartina patens (Ait.) Muhl. flavus Spergula arvensis L. Trifolium arvense L. Sphenopholis obtusata (Michx.) Scribn. var. obtusata Trifolium campestre Schreb. Sphenopholis pensylvanica (L.) A.S. Hitchc. Trifolium dubium Sibthorp Spiraea prunifolia Sieb. & Zucc. Trifolium pratense L. Spiranthes tuberosa Raf. Trifolium repens L. Spiranthes vernalis Engelm. & Gray Triglochin striata Ruiz & Pavon Triodanis perfoliata (L.) Nieuwl. var. Spirodela polyrrhiza (L.) Schleid. biflora (Ruiz & Pavon) Bradley Triodanis perfoliata (L.) Nieuwl. var. Sporobolus indicus (L.) R. Br. perfoliata Staphylea trifolia L. Triosteum perfoliatum L. Triplasis purpurea (Walt.) Chapman Stellaria media (L.) Vill. var. purpurea Tripsacum dactyloides (L.) L. var. Stewartia ovata (Cav.) Weatherby dactyloides Strophostyles helvola (L.) Ell. Triticum aestivum L. Strophostyles umbellata (Muhl. ex Willd.) Britt. Tussilago farfara L. Stylosanthes biflora (L.) B.S.P. Typha angustifolia L. Symphoricarpos orbiculatus Moench Typha domingensis Pers. Symphyotrichum dumosum (L.) Nesom var. dumosum Typha latifolia L. Symphyotrichum grandiflorum (L.) Nesom Ulmus americana L. Symphyotrichum laeve (L.) A. & D. Love var. laeve Ulmus rubra Muhl. Symphyotrichum lanceolatum (Willd.) Urochloa platyphylla (Munro ex Nesom Wright) R. Webster Symphyotrichum lateriflorum (L.) A.& D. Love Urochloa texana (Buckl.) R. Webster Symphyotrichum pilosum (Willd.) Nesom Urtica dioica L. + Urtica gracilis Ait. Symphyotrichum puniceum (L.) A.& D. Love var. puniceum Utricularia gibba L. Symphyotrichum racemosum (Ell.) Nesom var. racemosum Utricularia macrorhiza Le Conte Symphyotrichum subulatum (Michx.) Nesom Uvularia perfoliata L. Symphyotrichum tenuifolium (L.) Nesom Vaccinium formosum Andr. Symphyotrichum undulatum (L.) Nesom Vaccinium fuscatum Ait. Symplocarpus foetidus (L.) Salisbury ex W.P. C. Barton Vaccinium pallidum Ait. Taraxacum officinale G.H. Weber ex Wiggers Vaccinium stamineum L. Taxodium distichum (L.) Richard var. distichum Valerianella locusta (L.) Latterade Teesdalia nudicaulis (Linnaeus) Aiton f. Valerianella radiata (L.) Dufr. Tephrosia spicata (Walt.) Torr. & Gray Verbascum blattaria L. Tephrosia virginiana (L.) Pers. Verbascum thapsus L. ssp. thapsus Tetragonotheca helianthoides L. Verbena simplex Lehm. Teucrium canadense L. Verbena urticifolia L. Thalictrum pubescens Pursh Verbesina occidentalis (L.) Walt. Thalictrum thalictroides (L.) Eames & Boivin Vernonia glauca (L.) Willd. Thelypteris palustris Schott var. pubescens (Lawson) Fern. Vernonia noveboracensis (L.) Michx. Tilia americana L. Veronica arvensis L. Tipularia discolor (Pursh) Nutt Veronica hederifolia L. Toxicodendron pubescens P.Miller Veronica officinalis L. Toxicodendron radicans (L.) Kuntze var. radicans Veronica peregrina L. var. peregrina Toxicodendron vernix (L.) Kuntze Veronica persica Poiret Veronica serpyllifolia L. var. Trichostema dichotomum L. serpyllifolia Tridens flavus (L.) A.S. Hitchc. var. flavus Viburnum acerifolium L. Trifolium arvense L. Viburnum dentatum L. Viburnum dentatum L. var. lucidum Trifolium aureum Pollich Aiton Trifolium campestre Schreb. Viburnum nudum L. Trifolium dubium Sibthorp Viburnum prunifolium L. Trifolium hybridum L. Vicia hirsuta (L.) S.F. Gray Trifolium incarnatum L. Vicia sativa L. Trifolium pratense L. Vinca major L. Trifolium repens L. Vinca minor L. Triglochin striata Ruiz & Pavon Viola arvensis Murr. Trillium pusillum Michx. var. virginianum Fern. Viola bicolor Pursh Triodanis perfoliata (L.) Nieuwl. var. biflora (Ruiz & Pavon) Bradley Viola primulifolia L. Triodanis perfoliata (L.) Nieuwl. var. perfoliata Viola sagittata Aiton Tripsacum dactyloides (L.) L. var. dactyloides Viola sororia Willd. Tristagma uniflorum (Graham) Traub Vitis labrusca L. Tussilago farfara L. Vitis riparia Michx. Vitis rotundifolia Michx. var. Typha angustifolia L. rotundifolia Typha latifolia L. Vitis vulpina L. Ulmus americana L. Vulpia myuros (L.) K.C. Gmel. Ulmus rubra Muhl. Vulpia octoflora (Walt.) Rydb. Utricularia biflora Lam. Wisteria sinensis (Sims) Sweet Utricularia gibba L. Woodwardia areolata (L.) T. Moore Uvularia perfoliata L. Woodwardia virginica (L.) Sm. Uvularia sessilifolia L. Xanthium strumarium L. Vaccinium formosum Andr. Xyris torta J.M. Smith Vaccinium fuscatum Ait. Yucca filamentosa L. Vaccinium pallidum Ait. Zannichellia palustris L. Vaccinium stamineum L. Zizania aquatica L. var. aquatica Vaccinium ×marianum S. Wats. (pro sp.) Valerianella locusta (L.) Latterade Valerianella radiata (L.) Dufr. Veratrum virginicum (L.) Aiton Veratrum viride Aiton var. viride Verbascum blattaria L. Verbascum thapsus L. ssp. thapsus Verbena hastata L. Verbena simplex Lehm. Verbena urticifolia L. Verbesina occidentalis (L.) Walt. Vernonia glauca (L.) Willd. Veronica arvensis L. Veronica hederifolia L. Veronica officinalis L. Veronica peregrina L. var. peregrina Veronica persica Poiret Viburnum acerifolium L. Viburnum dentatum L. Viburnum nudum L. Viburnum prunifolium L. Vicia grandiflora Scop. Vicia hirsuta (L.) S.F. Gray Vicia lathyroides L. Vicia sativa L. Vicia villosa Roth ssp. varia (Host) Corbiere Vinca major L. Vinca minor L. Viola arvensis Murr. Viola bicolor Pursh Viola cucullata Ait. Viola labradorica Schrank Viola palmata L. var. palmata Viola pedata L. Viola primulifolia L. Viola sagittata Aiton Vitis aestivalis Michx. Vitis labrusca L. Vitis rotundifolia Michx. var. rotundifolia Vitis vulpina L. Vulpia myuros (L.) K.C. Gmel. Vulpia octoflora (Walt.) Rydb. Wisteria floribunda (Willd.) DC. Wisteria frutescens (L.) Poir. Wisteria sinensis (Sims) Sweet Wolffia brasiliensis Weddell Wolffia columbiana Karst. Wolffiella gladiata (Hegelm.) Hegelm. Woodwardia areolata (L.) T. Moore Woodwardia virginica (L.) Sm. Xanthium strumarium L. Xyris difformis Chapman var. difformis Xyris torta J.M. Smith Yucca filamentosa L. Zannichellia palustris L. Zizania aquatica L. var. aquatica