Index of Common Names (Vascular Plants with Photographs)

Acadian quillwort — Isoetes acadiensis Kott — 6 images
Allegheny blackberry, common blackberry — Rubus allegheniensis Porter — 34 images
Allegheny buttercup, Allegheny crowfoot — Ranunculus allegheniensis Britton — 12 images
Allegheny plum — Prunus alleghaniensis var. alleghaniensis Porter — 3 images
Allegheny spurge — Pachysandra procumbens Michx. — 15 images
Alsike clover — Trifolium hybridum L. — 9 images
American barnyard grass, common cockspur — Echinochloa muricata var. muricata (Beauv.) Fern. — 3 images
American beech — Fagus grandifolia Ehrh. — 81 images
American bistort — Bistorta bistortoides (Pursh) Small — 3 images
American bittersweet — Celastrus scandens L. — 3 images
American black currant — Ribes americanum P.Miller — 4 images
American black elderberry, American black-fruited elderberry — Sambucus nigra ssp. canadensis (L.) R.Bolli — 28 images
American bladdernut — Staphylea trifolia L. — 4 images
American bugleweed, American water horehound — Lycopus americanus Muhl. ex W.Barton — 33 images
American chestnut — Castanea dentata (Marsh.) Borkh. — 60 images
American climbing fern — Lygodium palmatum (Bernh. ex Schrader) Sw. — 22 images
American cranberry, large cranberry — Vaccinium macrocarpon Ait. — 59 images
American dog violet — Viola labradorica Schrank — 33 images
American dunegrass, American beach grass, American marram grass — Ammophila breviligulata Fern. — 32 images
American elm, white elm — Ulmus americana L. — 35 images
American false bindweed — Calystegia sepium ssp. americana (Sims) Brummitt — 11 images
American false pennyroyal — Hedeoma pulegioides (L.) Pers. — 7 images
American featherfoil — Hottonia inflata Ell. — 28 images
American field chickweed — Cerastium strictum L. — 1 images
American field mint — Mentha canadensis L. — 11 images
American germander, saltmarsh germander — Teucrium canadense var. canadense L. — 15 images
American great willowherb, American narrow-leaved fireweed — Chamaenerion angustifolium (Mosquin) Moldenke — 9 images
American groundnut — Apios americana Medik. — 40 images
American hazelnut — Corylus americana Walt. — 36 images
American heal-all, American selfheal — Prunella vulgaris ssp. lanceolata (W.Barton) Hultén — 7 images
American highbush cranberry — Viburnum opulus ssp. trilobum (Marsh.) Clausen — 10 images
American hog peanut — Amphicarpaea bracteata (L.) Fern. — 20 images
American holly — Ilex opaca var. opaca Ait. — 62 images
American honewort, Canada honewort — Cryptotaenia canadensis (L.) DC. — 5 images
American hornbeam, ironwood, musclewood, bluebeech — Carpinus caroliniana ssp. virginiana (Marsh.) Furlow — 26 images
American lotus, yellow lotus — Nelumbo lutea Willd. — 4 images
American lovage, boar hog root — Ligusticum canadense ? — 8 images
American marsh fern — Thelypteris palustris ssp. pubescens (Lawson) Fraser-Jenkins — 33 images
American marsh pennywort, swamp pennywort, woodland pennywort — Hydrocotyle americana L. — 19 images
American mountain ash — Sorbus americana Marsh. — 13 images
American ostrich fern — Matteuccia struthiopteris ssp. pensylvanica (Willd.) A.Löve & D.Löve — 29 images
American papaw, common pawpaw — Asimina triloba (L.) Dunal — 2 images
American parsley fern, American rockbrake — Cryptogramma acrostichoides R.Br. — 3 images
American persimmon — Diospyros virginiana L. — 36 images
American plantain, Rugel's plantain, blackseed plantain — Plantago rugelii Dcne. — 18 images
American plum, wild plum — Prunus americana Marsh. — 3 images
American pokeweed, poke sallet — Phytolacca americana var. americana L. — 21 images
American pussy willow — Salix discolor Muhl. — 80 images
American royal fern — Osmunda regalis ssp. spectabilis (Willd.) A.Löve & D.Löve — 45 images
American sea blite — Suaeda calceoliformis (Hooker) Moq. — 8 images
American sea rocket — Cakile edentula ssp. edentula var. edentula (Bigelow) Hooker — 22 images
American seaside plantain — Plantago maritima ssp. juncoides (Lam.) Hultén — 27 images
American smoketree — Cotinus obovatus Raf. — 5 images
American spikenard — Aralia racemosa ssp. racemosa L. — 18 images
American squaw-root, American cancer-root — Conopholis americana (L.) Wallr.f. — 14 images
American starflower — Lysimachia borealis (Raf.) U.Manns & Anderb. — 16 images
American tall scouring rush — Equisetum hyemale ssp. affine (Engelm.) Calder & Taylor — 27 images
American trembling aspen, quaking aspen — Populus tremuloides Michx. — 49 images
American trout lily — Erythronium americanum ssp. americanum Ker Gawler — 46 images
American twinflower — Linnaea borealis ssp. americana (Forbes) Hultén ex R.T.Clausen — 9 images
American white waterlily, fragrant waterlily — Nymphaea odorata ssp. odorata Aiton — 29 images
American witch-hazel, common witch-hazel — Hamamelis virginiana L. — 47 images
Amur corktree — Phellodendron amurense Rupr. — 73 images
Amur honeysuckle — Lonicera maackii (Rupr.) Maxim. — 35 images
Amur maple — Acer ginnala Maxim. — 7 images
Amur peppervine, porcelain berry — Ampelopsis glandulosa var. brevipedunculata (Maxim.) Momiy — 23 images
Amur tree lilac — Syringa reticulata ssp. reticulata (Blume) Hara — 4 images
Andrews' bottle gentian, prairie bottle gentian — Gentiana andrewsii var. andrewsii Griseb. — 26 images
Ankara crocus — Crocus ancyrensis (Herb.) Maw — 9 images
Appalachian rock polypody — Polypodium appalachianum Haufler & Windham — 19 images
Appalachian sand plum, Appalachian sand cherry — Prunus susquehanae Willd. — 34 images
Appalachian sedge, spreading star sedge — Carex appalachica J.Webber & P.W.Ball — 6 images
Arkansas bluestar — Amsonia hubrichtii Woodson — 13 images
Armenian grape hyacinth, garden grape hyacinth — Muscari armeniacum Leichtlin ex Baker — 1 images
Arnold crabapple — Malus ×arnoldiana (Rehder) Rehder — 4 images
Ashe's panicgrass, variable panicgrass — Dichanthelium commutatum ssp. ashei (G.Pearson ex Ashe) Freckmann & Lelong — 6 images
Asian jumpseed — Persicaria filiformis (Thunb.) Nakai — 1 images
Asian pear, Japanese pear, Chinese pear — Pyrus pyrifolia (Burm.) Nakai — 3 images
Asian skunk cabbage — Lysichiton camtschatcensis (L.) Schott — 10 images
Asiatic sweetleaf, sapphireberry — Symplocos paniculata (Thunb.) Miq. — 8 images
Asiatic tearthumb, mile-a-minute — Persicaria perfoliata (L.) H.Gross — 39 images
Atlantic Joe-Pye-weed — Eutrochium dubium (Willd. ex Poir.) E.E.Lamont — 30 images
Atlantic grape hyacinth — Muscari neglectum Guss. ex Ten. — 18 images
Atlantic ivy — Hedera hibernica (G.Kirchn.) Bean — 19 images
Atlantic mannagrass, coastal mannagrass — Glyceria obtusa (Muhl.) Trin. — 19 images
Atlantic mock bishop's weed — Ptilimnium capillaceum (Michx.) Raf. — 14 images
Atlantic white cedar — Chamaecyparis thyoides (L.) B.S.P. — 85 images
Austrian pine — Pinus nigra Arnott — 13 images
Aztec marigold, big marigold — Tagetes erecta L. — 3 images
Aztec tobacco, wild tobacco — Nicotiana rustica L. — 4 images
Bartram's shadbush, Bartram's serviceberry, Bartram's juneberry, mountain shadbush, mountain serviceberry, mountain juneberry — Amelanchier bartramiana (Tausch) Roemer — 17 images
Bebb's oak — Quercus ×bebbiana C.K.Schneider — 4 images
Bebb's willow — Salix bebbiana Sarg. — 41 images
Berchtold's pondweed, slender tiny pondweed — Potamogeton berchtoldii Fieber — 11 images
Bermuda grass — Cynodon dactylon var. dactylon (L.) Pers. — 4 images
Bieberstein's crocus, large autumn crocus — Crocus speciosus M.Bieb. — 4 images
Bissell's violet (marsh blue × common blue) — Viola ×bissellii House — 16 images
Blake's aster — Oclemena ×blakei (Porter) G.L.Nesom — 2 images
Bohemian knotweed — Reynoutria ×bohemica Chrtek & Chrtková — 37 images
Boott's wood fern — Dryopteris ×boottii (Tuckerman) Underw. — 14 images
Brainerd's hawthorn — Crataegus brainerdii Sarg. — 11 images
Brazilian watermeal, papillate watermeal — Wolffia brasiliensis Weddell — 5 images
Brazilian waterweed, Brazilian elodea — Egeria densa Planchon — 14 images
Britton's violet × comb violet — Viola brittoniana × V. pectinata — 5 images
Buffalo nut, oil nut — Pyrularia pubera Michx. — 33 images
Buxbaum's sedge, brown bog sedge — Carex buxbaumii Wahlenb. — 6 images
California poppy — Eschscholzia californica Cham. ex Nees — 1 images
California privet — Ligustrum ovalifolium Hassk. — 16 images
Californian false hellebore — Veratrum californicum var. californicum Durand — 1 images
Callery pear, Bradford pear — Pyrus calleryana Dcne. — 28 images
Canada bluejoint, Canada reedgrass — Calamagrostis canadensis var. canadensis (Michx.) Beauv. — 50 images
Canada burnet, American burnet — Sanguisorba canadensis L. — 5 images
Canada clearweed — Pilea pumila var. pumila (L.) A.Gray — 17 images
Canada cocklebur, Canada clotbur — Xanthium strumarium var. canadense (P.Miller) Torrey & A.Gray — 12 images
Canada fleabane, horseweed, hogweed, butterweed — Erigeron canadensis (L.) Carr. — 39 images
Canada goldenrod — Solidago canadensis var. canadensis L. — 14 images
Canada hawkweed — Hieracium kalmii L. — 9 images
Canada lily, wild yellow lily — Lilium canadense L. — 19 images
Canada mayflower — Maianthemum canadense Desf. — 18 images
Canada milkvetch, Canadian milkvetch — Astragalus canadensis L. — 2 images
Canada moonseed — Menispermum canadense L. — 3 images
Canada plum — Prunus nigra Aiton — 4 images
Canada thistle, creeping thistle — Cirsium arvense (L.) Scop. — 13 images
Canada wild rye — Elymus canadensis var. canadensis L. — 5 images
Canada windflower — Anemonastrum canadense (L.) Mosyakin — 2 images
Canada wood nettle — Laportea canadensis (L.) Weddell — 13 images
Canada yew — Taxus canadensis var. canadensis Marsh. — 25 images
Canadian rockcress, Drummond's rockcress — Boechera stricta (Graham) Al-Shehbaz — 19 images
Canadian wild ginger — Asarum canadense L. — 22 images
Carey's smartweed — Persicaria careyi (Olney) Greene — 39 images
Carolina cranesbill, Carolina geranium — Geranium carolinianum L. — 31 images
Carolina fanwort — Cabomba caroliniana A.Gray — 50 images
Carolina nightshade, Carolina horsenettle — Solanum carolinense var. carolinense L. — 23 images
Carolina redroot, Carolina bloodroot — Lachnanthes caroliniana (Lam.) Dandy — 18 images
Carolina rhododendron — Rhododendron carolinianum Rehd. — 9 images
Carolina rose, pasture rose — Rosa carolina ssp. carolina L. — 12 images
Carolina sea lavender — Limonium carolinianum (Walt.) Britt. — 43 images
Carolina silverbell — Halesia carolina L. — 20 images
Catawba rhododendron — Rhododendron catawbiense Michx. — 19 images
Caucasian ivy — Hedera colchica K.Koch — 5 images
Chapman's bluegrass — Poa chapmaniana Scribner — 4 images
Chinese bushclover — Lespedeza cuneata (Dum.Cours.) G.Don — 16 images
Chinese chestnut — Castanea mollissima Blume — 9 images
Chinese corktree — Phellodendron chinense C.K.Schneider — 2 images
Chinese elm — Ulmus parvifolia Jacq. — 19 images
Chinese foxtail, giant foxtail, nodding foxtail — Setaria faberi R.A.W.Herrm. ex Rosen — 21 images
Chinese lantern, strawberry groundcherry — Alkekengi officinarum Moensch — 6 images
Chinese matrimony vine — Lycium chinense P.Miller — 10 images
Chinese privet — Ligustrum sinense Lour. — 5 images
Chinese silvergrass, Chinese plumegrass — Miscanthus sinensis Andersson — 48 images
Chinese smartweed, Oriental lady's thumb, bristly lady's thumb — Persicaria longiseta (Bruijn) Kitagawa — 20 images
Chinese wisteria — Wisteria sinensis (Sims) DC. — 32 images
Christmas fern — Polystichum acrostichoides (Michx.) Schott — 37 images
Christmas rose — Helleborus niger L. — 7 images
Clayton's sweet cicely — Osmorhiza claytonii (Michx.) C.B.Clarke — 28 images
Clinton's wood fern — Dryopteris clintoniana (D.C.Eaton ex A.Gray) Dowell — 6 images
Coastal Plain slender goldenrod, slender-leaved flat-topped goldenrod — Euthamia caroliniana (L.) Greene ex Port. & Britt. — 26 images
Colorado blue columbine — Aquilegia coerulea E.James — 3 images
Cooper's hardy iceplant, trailing iceplant — Delosperma cooperi (Hook.f.) L.Bolus — 17 images
Crawford's sedge — Carex crawfordii Fernald — 8 images
Cretan viper's bugloss — Echium creticum L. — 13 images
Culver's root — Veronicastrum virginicum (L.) Farw. — 5 images
Deptford pink, grass pink — Dianthus armeria L. — 13 images
Drummond's willow — Salix drummondiana Barratt ex Hooker — 3 images
Dutchman's breeches — Dicentra cucullaria (L.) Bernh. — 8 images
Elliott's goldenrod — Solidago latissimifolia P.Miller — 28 images
Emmons' sedge — Carex albicans var. emmonsii (Dewey ex Torrey) J.Rettig — 10 images
Engelmann spruce, white spruce, mountain spruce — Picea engelmannii Parry ex Engelm. — 2 images
Engelmann's flatsedge — Cyperus engelmannii Steudel — 13 images
English bluebell — Hyacinthoides non-scripta (L.) Chouard — 5 images
English cinquefoil — Potentilla anglica Laicharding — 1 images
English daisy, lawn daisy — Bellis perennis L. — 11 images
English elm — Ulmus procera Salisb. — 2 images
English hawthorn — Crataegus monogyna Jacq. — 10 images
English holly — Ilex aquifolium L. — 3 images
English ivy, European ivy — Hedera helix L. — 24 images
English oak — Quercus robur L. — 20 images
English violet — Viola odorata L. — 32 images
English yew — Taxus baccata L. — 6 images
Eurasian heal-all, common selfheal — Prunella vulgaris ssp. vulgaris L. — 3 images
Eurasian marsh hedgenettle, clown's woundwort — Stachys palustris L. — 7 images
Eurasian smoketree — Cotinus coggygria Scop. — 3 images
Eurasian watermilfoil, spiked watermilfoil — Myriophyllum spicatum L. — 11 images
European beech — Fagus sylvatica L. — 25 images
European black alder — Alnus glutinosa (L.) Gaertner — 27 images
European black currant, garden black currant — Ribes nigrum L. — 4 images
European black nightshade — Solanum nigrum ssp. nigrum L. — 6 images
European broad-leaved thyme, lemon thyme — Thymus pulegioides L. — 11 images
European centaury, lesser centaury — Centaurium erythraea Raf. — 1 images
European clover-fern, European waterclover, four-leaf clover, pepperwort — Marsilea quadrifolia L. — 7 images
European cocklebur, European clotbur — Xanthium strumarium var. strumarium L. — 8 images
European common barberry — Berberis vulgaris L. — 24 images
European common box, European boxwood — Buxus sempervirens L. — 4 images
European common buckthorn, purging buckthorn — Rhamnus cathartica L. — 40 images
European common hawkweed — Hieracium lachenalii K.C.Gmelin — 7 images
European common privet — Ligustrum vulgare L. — 13 images
European downy birch — Betula pubescens ssp. pubescens Ehrh. — 6 images
European false bindweed — Calystegia sepium ssp. sepium (L.) R.Br. — 10 images
European field violet, field pansy — Viola arvensis Murray — 7 images
European fly honeysuckle — Lonicera xylosteum L. — 21 images
European forest blackberry, European dewberry — Rubus caesius L. — 9 images
European gooseberry — Ribes uva-crispa var. sativum DC. — 3 images
European grape, wine grape — Vitis vinifera L. — 10 images
European highbush cranberry, guelder rose — Viburnum opulus ssp. opulus L. — 30 images
European hornbeam — Carpinus betulus L. — 3 images
European larch — Larix decidua P.Miller — 18 images
European mountain ash — Sorbus aucuparia L. — 40 images
European spindletree — Euonymus europaeus L. — 28 images
European star sedge, prickly sedge — Carex spicata Hudson — 9 images
European stinging nettle — Urtica dioica L. — 26 images
European strawberry — Fragaria vesca ssp. vesca L. — 3 images
European water horehound — Lycopus europaeus L. — 1 images
European weeping birch × American gray birch — Betula pendula × B. populifolia — 4 images
European weeping birch, European silver birch — Betula pendula Roth — 12 images
European wild garlic — Allium oleraceum L. — 7 images
European wild ginger, asarabacca — Asarum europaeum L. — 2 images
European windflower — Anemone nemorosa L. — 5 images
European yarrow — Achillea millefolium ssp. millefolium L. — 8 images
Far East smartweed — Persicaria extremiorientalis (Vorosch.) Tzvelev — 7 images
February daphne, mezereon, mezereum — Daphne mezereum L. — 4 images
Forbes' glory-of-the-snow — Chionodoxa forbesii Baker — 11 images
Forbes' sweet white violet — Viola blanda var. palustriformis A.Gray — 7 images
French rose — Rosa gallica L. — 11 images
Fuji cherry — Prunus incisa Thunb. — 10 images
Gambel oak — Quercus gambelii Nutt. — 5 images
Geneva bugleweed, standing bugle — Ajuga genevensis L. — 5 images
German chamomile, Hungarian chamomile, scented mayweed — Matricaria chamomilla L. — 5 images
German iris, fleur-de-lis — Iris germanica L. — 5 images
Gilman's bog clubmoss — Lycopodiella ×gilmanii A.Haines — 6 images
Gray's flatsedge — Cyperus grayi Torrey — 32 images
Gray’s aster — Herrickia glauca (Nutt.) Brouillet — 2 images
Greek windflower — Anemone blanda Schott & Kotschy — 9 images
Greene's pussytoes — Antennaria howellii ssp. neodioica (Greene) Bayer — 10 images
Greene's rush — Juncus greenei Oakes & Tuckerman — 17 images
Gronovius' hawkweed — Hieracium gronovii L. — 20 images
Hassler's beeplant, Hassler's spiderflower — Tarenaya hassleriana (Chod.) Iltis — 8 images
Hayden's sedge — Carex haydenii Dewey — 15 images
Hickey's clubmoss — Dendrolycopodium hickeyi (W.H.Wagner, Beitel & Moran) A.Haines — 7 images
Himalayan knotweed, garden smartweed — Persicaria wallichii var. wallichii Greuter & Burdet — 14 images
Houston's whiteweed, Houston's ageratum, bluemink — Ageratum houstonianum P.Miller — 8 images
Indian aster — Aster indicus (L.) All. — 25 images
Indian cucumber root, Indian cucumber — Medeola virginiana L. — 37 images
Indian goosegrass, Indian yardgrass — Eleusine indica (L.) Gaertner — 22 images
Indian grass — Sorghastrum nutans (L.) Nash — 22 images
Indian lovegrass, soft lovegrass — Eragrostis pilosa var. pilosa (L.) Beauv. — 16 images
Indian mulberry, Korean mulberry, Japanese mulberry — Morus indica L. — 7 images
Indian physic, bowman's root, ipecac — Porteranthus trifoliatus (L.) Britton — 4 images
Indian pipe — Monotropa uniflora L. — 30 images
Indian strawberry — Potentilla indica (Andr.) T.Wolf — 19 images
Indian wood-oats flat-head oats, upland oats, river oats — Chasmanthium latifolium (Michx.) Yates — 5 images
Italian eryngo, amethyst eryngo, amethyst sea holly — Eryngium amethystinum L. — 3 images
Italian ryegrass — Lolium multiflorum Lam. — 4 images
Jack pine — Pinus banksiana Lamb. — 12 images
Jack's oak — Quercus ×jackiana C.K.Schneider — 7 images
Jack's poplar, balm-of-Gilead — Populus ×jackii Sarg. — 1 images
Japanese andromeda — Pieris japonica (Thunb.) D.Don ex G.Don — 20 images
Japanese angelica tree — Aralia elata (Miq.) Seem. — 30 images
Japanese barberry — Berberis thunbergii DC. — 36 images
Japanese black pine — Pinus thunbergii Parl. — 23 images
Japanese callicarpa — Callicarpa japonica Thunb. — 10 images
Japanese crabapple, Toringo crab, Siebold's crabapple — Malus toringo (Siebold) Siebold ex de Vriese — 17 images
Japanese cranesbill, dewdrop cranesbill, Thunberg's geranium — Geranium thunbergii Sieb. & Zucc. ex Lindl. & Paxton — 18 images
Japanese creeper, Japanese ivy, grape ivy, Boston ivy — Parthenocissus tricuspidata (Sieb. & Zucc.) Planchon — 11 images
Japanese flowering cherry — Prunus serrulata Lindley — 13 images
Japanese flowering crabapple — Malus floribunda Sieb. ex Van Houtte — 20 images
Japanese flowering quince — Chaenomeles speciosa (Sweet) Nakai — 16 images
Japanese holly — Ilex crenata Thunb. — 14 images
Japanese honewort — Cryptotaenia japonica Hassk. — 4 images
Japanese honeysuckle — Lonicera japonica Thunb. — 38 images
Japanese hops — Humulus japonicus Sieb. & Zucc. — 10 images
Japanese knotweed — Reynoutria japonica var. japonica Houtt. — 37 images
Japanese maple — Acer palmatum Thunb. — 8 images
Japanese mazus — Mazus pumilus (Burm.f.) Steenis — 8 images
Japanese meadowsweet — Spiraea japonica var. fortunei (Planch.) Rehd. — 7 images
Japanese millet — Echinochloa frumentacea Link — 18 images
Japanese pagoda tree, Chinese scholar tree — Styphnolobium japonicum (L.) Schott. — 6 images
Japanese painted fern — Anisocampium niponicum (Mett.) Yea C.Liu, W.L.Chiou & M.Kato — 8 images
Japanese privet, ibota privet — Ligustrum obtusifolium var. obtusifolium Sieb. & Zucc. — 22 images
Japanese rose — Kerria japonica (L.) DC. — 4 images
Japanese rose, saltspray rose, beach rose — Rosa rugosa Thunb. — 36 images
Japanese snowball viburnum — Viburnum plicatum Thunb. — 12 images
Japanese snowbell — Styrax japonicus Siebold & Zucc. — 9 images
Japanese spurge — Pachysandra terminalis Sieb. & Zucc. — 12 images
Japanese stewartia — Stewartia pseudocamellia Maxim. — 3 images
Japanese stiltgrass — Microstegium vimineum (Trin.) A.Camus — 31 images
Japanese walnut — Juglans ailantifolia Carr. — 4 images
Japanese wisteria — Wisteria floribunda (Willd.) DC. — 11 images
Japanese yew — Taxus cuspidata Sieb. & Zucc. — 11 images
Japanese zelkova — Zelkova serrata (Thunb.) Makino — 18 images
Java waterdropwort, water dropwort, water celery — Oenanthe javanica (Blume) DC. — 10 images
Jerusalem artichoke, tuberous sunflower — Helianthus tuberosus L. — 23 images
Jesup's willow (white willow × shining willow) — Salix ×jesupii Fern. — 16 images
Kaempfer's azalea, torch azalea — Rhododendron kaempferi Planch. — 6 images
Kenilworth ivy, Oxford ivy, Coliseum ivy — Cymbalaria muralis Gaertner, Meyer & Scherb. — 15 images
Kentucky coffeetree — Gymnocladus dioicus (L.) K.Koch — 5 images
Lamarck's bedstraw, Mediterranean bedstraw — Galium divaricatum Pourret ex Lam. — 10 images
Langsdorff's bluejoint, Langsdorff's reedgrass — Calamagrostis canadensis var. langsdorffii (Link) Inman — 4 images
Leconte's violet — Viola affinis Leconte — 26 images
Leggett's pinweed — Lechea pulchella Raf. — 4 images
Lenten hellebore, Lenten rose — Helleborus ×hybridus hort. ex Vilmorin — 4 images
Loesel's hedge mustard, tall hedge mustard — Sisymbrium loeselii L. — 5 images
Lombardy poplar, black poplar — Populus nigra L. — 13 images
Long Island Sound hawthorn — Crataegus fretalis Sarg. — 7 images
Long's bittercress — Cardamine longii Fern. — 2 images
Long's bulrush, Long's woosedge, Long's woolgrass — Scirpus longii Fernald — 6 images
Long's sedge — Carex longii Mackenzie — 36 images
Lucilia's glory-of-the-snow — Chionodoxa luciliae Boiss. — 16 images
Mackay's fragile fern, Mackay's brittle fern, upland brittle bladder fern — Cystopteris tenuis (Michx.) Desv. — 5 images
Mackenzie's sedge — Carex mackenziei Krecz. — 7 images
Maryland black snakeroot, Maryland sanicle — Sanicula marilandica L. — 21 images
Massachusetts fern — Parathelypteris simulata (Davenport) Holttum — 23 images
Mediterranean white heath, Darley Dale heath — Erica ×darleyensis Bean — 3 images
Meserve's holly — Ilex ×meserveae S.Y.Hu — 8 images
Mexican groundcherry, tomatillo — Physalis philadelphica var. immaculata Waterfall — 9 images
Mexican tea — Dysphania ambrosioides (L.) Mosyakin & Clemants — 17 images
Meyer's willow (bayleaf willow × West Asian willow) — Salix ×meyeriana Rostk. — 5 images
Mishchenko squill — Othocallis mischtschenkoana (Grossh.) Speta — 10 images
Monckton's knapweed — Centaurea ×moncktonii C.E.Britton — 34 images
Morison's spurry — Spergula morisonii Boreau — 33 images
Moroccan toadflax — Linaria maroccana Hook.f. — 3 images
Morrow's honeysuckle — Lonicera morrowii A.Gray — 57 images
Muhlenberg's beadgrass — Paspalum setaceum var. muhlenbergii (Nash) D.Banks — 33 images
Muhlenberg's sedge — Carex muehlenbergii var. muehlenbergii Schkuhr ex Willd. — 3 images
Nantucket shadbush, Nantucket serviceberry, Nantucket juneberry — Amelanchier nantucketensis Bickn. — 18 images
New England aster — Symphyotrichum novae-angliae (L.) G.L.Nesom — 25 images
New England blazing star, northern blazing star — Liatris novae-angliae var. novae-angliae (Lunell) Shinners — 36 images
New England boneset, pondshore boneset — Eupatorium novae-angliae (Fern.) V.Sullivan ex A.Haines & Sorrie — 8 images
New England hybrid grape (fox × riverbank) — Vitis ×novae-angliae Fern. — 4 images
New England sand blackberry, sandy field blackberry — Rubus arenicola Blanch. — 10 images
New England sedge — Carex novae-angliae Schwein. — 2 images
New Jersey highbush blueberry — Vaccinium caesariense Mackenzie — 21 images
New Jersey tea — Ceanothus americanus L. — 20 images
New York aster — Symphyotrichum novi-belgii var. novi-belgii (L.) G.L.Nesom — 49 images
New York fern — Parathelypteris noveboracensis (L.) Ching — 24 images
New York ironweed — Vernonia noveboracensis (L.) Michx. — 29 images
New Zealand spinach — Tetragonia tetragonioides (Pallas) Kuntze — 5 images
Nippon daisy — Nipponanthemum nipponicum (Franch. ex Maxim.) Kitam. — 9 images
North American reed — Phragmites americanus (Saltonstall, P.M.Peterson & Soreng) A.Haines — 16 images
Norway maple — Acer platanoides L. — 40 images
Norway spruce — Picea abies (L.) H.Karst. — 55 images
Norwegian cinquefoil, three-finger, strawberryweed — Potentilla norvegica L. — 19 images
Nuttall's bluejoint, reed bluejoint, Nuttall's reedgrass — Calamagrostis cinnoides (Muhl.) W.Barton — 22 images
Nuttall's milkwort — Polygala nuttallii Torrey & A.Gray — 17 images
Nuttall's waterweed, free-flowered waterweed — Elodea nuttallii (Planchon) H.St.John — 10 images
Oakes' evening primrose, cross-shaped evening primrose — Oenothera oakesiana (A.Gray) J.W.Robbins ex S.Wats. & Coult. — 20 images
Oakes' pondweed — Potamogeton oakesianus J.W.Robbins — 13 images
Oconee bells — Shortia galacifolia Torr. & A.Gray — 15 images
Ohio buckeye — Aesculus glabra Willd. — 13 images
Oregon boxleaf, myrtle box leaf — Paxistima myrsinites (Pursh) Raf. — 2 images
Oriental bittersweet, Asian bittersweet — Celastrus orbiculatus Thunb. — 92 images
Oriental photinia, Oriental redtip, Christmas berry — Photinia villosa (Thunb.) DC. — 10 images
Ottawa hybrid barberry — Berberis ×ottawensis C.K.Schneid. — 4 images
Ozark beggarticks — Bidens polylepis Blake — 10 images
Ozark witch-hazel, spring witch-hazel — Hamamelis vernalis Sarg. — 15 images
Parker's pipewort — Eriocaulon parkeri B.L.Robinson — 8 images
Peck's bulrush — Scirpus ×peckii Britton — 15 images
Pennsylvania catchfly, wild campion — Silene caroliniana ssp. pensylvanica (Michx.) Clausen — 10 images
Pennsylvania cudweed — Gamochaeta pensylvanica (Willd.) Cabrera — 6 images
Pennsylvania pellitory, rock pellitory — Parietaria pensylvanica Muhl. ex Willd. — 7 images
Pennsylvania sedge — Carex pensylvanica Lam. — 27 images
Pennsylvania smartweed — Persicaria pensylvanica (L.) G.Maza — 35 images
Persian speedwell, birdseye speedwell — Veronica persica Poiret — 17 images
Philadelphia fleabane — Erigeron philadelphicus var. philadelphicus L. — 4 images
Philadelphia panicgrass — Panicum philadelphicum ssp. philadelphicum Bernh. ex Trin. — 11 images
Pickering's reedgrass — Calamagrostis pickeringii A.Gray — 23 images
Plains tickseed — Coreopsis tinctoria Nutt. — 5 images
Plains white doll's daisy, Plains false aster — Boltonia asteroides var. latisquama (A.Gray) Cronq. — 7 images
Plymouth gentian — Sabatia kennedyana Fern. — 65 images
Powell's amaranth — Amaranthus powellii S.Watson — 8 images
Pringle's aster — Symphyotrichum pilosum var. pringlei (A.Gray) G.L.Nesom — 19 images
Pringle's hawthorn — Crataegus pringlei Sarg. — 7 images
Pylaie's soft rush — Juncus pylaei Laharpe — 21 images
Ravenna grass, elephant grass, hardy pampas grass, plume grass — Saccharum ravennae L. — 3 images
Rhode Island bentgrass, colonial bent, browntop — Agrostis capillaris L. — 4 images
Rich's sea blite — Suaeda maritima ssp. richii (Fern.) Bassett & C.W.Crompton — 4 images
Robbins' spikerush, Robbins' spikesedge — Eleocharis robbinsii Oakes — 62 images
Rocky Mountain Douglas fir — Pseudotsuga menziesii ssp. glauca (Beissn.) A.E.Murray — 18 images
Rocky Mountain juniper — Juniperus scopulorum Sarg. — 3 images
Rocky Mountain maple — Acer glabrum Torr. — 1 images
Russian olive, oleaster, silverberry — Elaeagnus angustifolia L. — 13 images
Russian sage — Perovskia atriplicifolia Benth. — 12 images
Russian thistle, windwitch — Salsola tragus L. — 2 images
Sakhalin spindletree — Euonymus sachalinensis (Fr.Schmidt) Maxim. — 14 images
Sargent's viburnum, Tianmu viburnum — Viburnum sargentii Koehne — 5 images
Saul's oak — Quercus ×saulii C.K.Schneider — 13 images
Savoy hawkweed — Hieracium sabaudum L. — 31 images
Schreber's aster — Eurybia schreberi (Nees) Nees — 7 images
Schuette's oak — Quercus x schuettei Trel. — 7 images
Scotch broom — Cytisus scoparius var. scoparius (L.) Link — 20 images
Scotch elm, Scots elm, wych elm — Ulmus glabra Hudson — 3 images
Scotch heather — Calluna vulgaris (L.) Hull — 24 images
Scotch pine, Scots pine — Pinus sylvestris L. — 25 images
Scotch rose — Rosa spinosissima L. — 7 images
Scouler's willow — Salix scouleriana Barratt ex Hooker — 6 images
Scribner's panicgrass — Dichanthelium oligosanthes ssp. scribnerianum (Nash) Freckmann & Lelong — 9 images
Siberian crabapple — Malus baccata (L.) Borkh. — 25 images
Siberian elm, dwarf elm — Ulmus pumila L. — 21 images
Siberian iris — Limniris sibirica Fuss — 12 images
Siberian pea shrub — Caragana arborescens Lam. — 4 images
Siberian squill — Othocallis siberica (Haw. ex Andr.) Speta — 18 images
Siberian wallflower (garden hybrid, parentage uncertain) — Erysimum ×marshalli (Henfr.) Bois. — 4 images
Sieber's crocus, Cretan crocus — Crocus sieberi J.Gay — 3 images
Siebold's euonymus — Euonymus sieboldianus Blume — 7 images
Siebold's viburnum — Viburnum sieboldii Miq. — 14 images
Slosson's wood fern — Dryopteris ×slossoniae Wherry ex Lellinger — 11 images
Small's spikerush, marsh spikerush, common spikesedge — Eleocharis palustris (L.) Roemer & Schultes — 20 images
Smith's blackberry — Rubus jaysmithii Bailey — 20 images
Smith's willow (ash willow × basket willow) — Salix ×smithiana Willd. — 9 images
Sosnowsky's giant hogweed — Heracleum sosnowskyi Manden. — 5 images
South American vervain, purpletop vervain — Verbena bonariensis var. conglomerata Briq. — 17 images
Spanish bayonet, Adam's needle — Yucca filamentosa L. — 23 images
Stueve's bushclover — Lespedeza stuevei Nutt. — 20 images
Swan's sedge — Carex swanii (Fern.) Mackenzie — 27 images
Tatarian honeysuckle — Lonicera tatarica L. — 3 images
Tatarian maple — Acer tataricum L. — 6 images
Texan yellow flax, stiff yelow flax, common yellow flax — Linum medium ssp. texanum (Planchon) A.Haines — 7 images
Thunberg's meadowsweet — Spiraea thunbergii Sieb. — 13 images
Torrey's beaksedge — Rhynchospora torreyana A.Gray — 8 images
Torrey's thoroughwort — Eupatorium torreyanum Short & Peter — 5 images
Tuckerman's quillwort — Isoetes tuckermanii A.Br. ex Engelm. — 20 images
Turk's cap lily — Lilium superbum L. — 4 images
Turkey oak — Quercus cerris L. — 26 images
Turkish hazel, filbert — Corylus colurna L. — 11 images
Tyrol knapweed, Vochin knapweed, Wocheiner knapweed, short-fringed knapweed — Centaurea nigrescens Willd. — 7 images
Vanhoutte spirea, bridalwreath — Spiraea ×vanhouttei (Briott) Carr. — 8 images
Vasey's azalea — Rhododendron vaseyi A.Gray — 7 images
Venice rose mallow, flower-of-an-hour — Hibiscus trionum L. — 2 images
Venus' looking glass, clasping bellflower — Triodanis perfoliata (L.) Nieuwl. — 16 images
Virginia bluebells, eastern bluebells, Virginia cowslip — Mertensia virginica (L.) Pers. ex Link — 5 images
Virginia chain fern — Woodwardia virginica (L.) Smith — 37 images
Virginia cottongrass, tawny cottonsedge — Eriophorum virginicum L. — 36 images
Virginia creeper — Parthenocissus quinquefolia (L.) Planchon — 47 images
Virginia dwarf dandelion — Krigia virginica (L.) Willd. — 39 images
Virginia marsh St. John's-wort — Hypericum virginicum L. — 29 images
Virginia meadowbeauty, northern meadowbeauty, wingstem meadowpitchers — Rhexia virginica L. — 57 images
Virginia mountain mint — Pycnanthemum virginianum (L.) T.Durand & B.D.Jackson — 6 images
Virginia pepperweed, poorman's pepper — Lepidium virginicum var. virginicum L. — 28 images
Virginia rose, low rose — Rosa virginiana P.Miller — 29 images
Virginia spiderwort — Tradescantia virginiana L. — 8 images
Virginia stickseed — Hackelia virginiana (L.) I.M.Johnston — 5 images
Virginia sweetspire, Virginia willow — Itea virginica L. — 4 images
Virginia three-seeded mercury — Acalypha virginica L. — 10 images
Virginia water horehound, floodplain water horehound — Lycopus virginicus L. — 37 images
Virginia waterleaf, eastern waterleaf — Hydrophyllum virginianum L. — 13 images
Virginia wild rye, common eastern wild rye — Elymus virginicus var. virginicus L. — 17 images
Virginia yellow flax, woodland yellow flax — Linum virginianum L. — 26 images
Walter's sedge — Carex striata Michx. — 19 images
Washington hawthorn — Crataegus phaenopyrum (L.f.) Medik. — 5 images
West Asian willow — Salix euxina Belyaeva — 18 images
Wiegand's rush — Juncus anthelatus (Wieg.) R.E.Brooks — 8 images
Wright's panicgrass — Dichanthelium wrightianum (Scribn.) Freckmann — 2 images
Xalapa purslane speedwell, Jalapa purslane speedwell — Veronica peregrina ssp. xalapensis (Kunth) Pennell — 5 images
acid-water arrowhead, Engelmann's arrowhead — Sagittaria engelmanniana J.G.Smith — 28 images
aizoon stonecrop, Siberian stonecrop — Aizopsis aizoon (L.) V.Grulich — 5 images
alder-leaved mountain ash, Korean mountain ash — Sorbus alnifolia (Siebold & Zucc.) K.Koch — 2 images
anemone meadowrue, rue anemone — Thalictrum thalictroides (L.) Eames & Boivin — 9 images
annual bluegrass — Poa annua L. — 15 images
annual fleabane, eastern daisy fleabane — Erigeron annuus (L.) Pers. — 15 images
annual glasswort, common glasswort — Salicornia depressa Standl. — 27 images
annual knawel — Scleranthus annuus L. — 14 images
annual ragweed — Ambrosia artemisiifolia L. — 26 images
annual saltmarsh aster, small-flowered saltmarsh aster — Symphyotrichum subulatum var. subulatum (Michx.) G.L.Nesom — 15 images
annual sand bean, annual woolly bean, trailing fuzzy bean — Strophostyles helvola (L.) Ell. — 23 images
annual sea blite, erect sea blite, slender sea blite — Suaeda linearis (Ell.) Moq. — 9 images
annual sowthistle, common thowthistle — Sonchus oleraceus L. — 16 images
annual umbrella sedge, dwarf umbrella sedge — Fuirena pumila (Torrey) Sprengel — 32 images
apple-of-Peru — Nicandra physalodes (L.) Gaertner — 7 images
arching sand blackberry — Rubus recurvicaulis Blanch. — 7 images
arrowhead rattlebox — Crotalaria sagittalis L. — 21 images
arrowleaf tearthumb — Persicaria sagittata (L.) H.Gross — 16 images
arrowleaf violet, arrowhead violet — Viola sagittata var. sagittata Aiton — 2 images
aspen fleabane, garden fleabane, showy fleabane — Erigeron speciosus Eastw. — 3 images
auburn panicgrass, tapered panicgrass — Dichanthelium acuminatum (Sw.) Gould & C.A.Clark — 7 images
autumn crocus — Colchicum autumnale L. — 6 images
autumn olive, autumn oleaster, spreading oleaster — Elaeagnus umbellata var. parvifolia (Royle) Schneid. — 54 images
autumn willow — Salix serissima (Bailey) Fern. — 31 images
awl-fruited sedge — Carex stipata var. stipata Muhl. ex Willd. — 17 images
awnless brome, smooth brome — Bromus inermis ssp. inermis Leyss. — 12 images
balloon flower — Platycodon grandiflorus — 4 images
balsam fir — Abies balsamea (L.) P.Miller — 32 images
balsam poplar — Populus balsamifera ssp. balsamifera L. — 5 images
balsam ragwort, balsam groundsel — Packera paupercula (Michx.) W.A.Weber & A.Löve — 9 images
barren brome — Bromus sterilis L. — 4 images
barren oak — Quercus marilandica Muenchh. — 1 images
barren-ground willow — Salix brachycarpa Nutt. — 2 images
barrens needlegrass, bent red threeawn — Aristida longespica var. geniculata (Raf.) Fern. — 11 images
basket willow — Salix purpurea L. — 17 images
basswood, American linden — Tilia americana var. americana L. — 49 images
bastard toadflax — Comandra umbellata ssp. umbellata (L.) Nutt. — 35 images
bay willow — Salix pentandra L. — 13 images
bayberry — Morella pensylvanica (Mirbel) Kartesz — 36 images
bayonet rush — Juncus militaris Bigelow — 55 images
beach pea — Lathyrus japonicus var. maritimus (L.) Kartesz & Gandhi — 16 images
beach pinweed — Lechea maritima var. maritima Leggett ex B.S.P. — 77 images
beach plum — Prunus maritima var. maritima Marsh. — 62 images
beaded broom sedge, necklace broom sedge — Carex projecta Mackenzie — 8 images
beaked hazelnut — Corylus cornuta ssp. cornuta Marsh. — 32 images
bearberry — Arctostaphylos uva-ursi (L.) Sprengel — 42 images
beautybush — Kolkwitzia amabilis Graebner — 10 images
beechdrops — Epifagus virginiana (L.) W.P.C.Barton — 31 images
beetleweed, wandflower — Galax urceolata (Poiret) Brummitt — 19 images
big bluestem — Andropogon gerardii Vitman — 36 images
big cordgrass, salt reedgrass — Spartina cynosuroides (L.) Roth — 15 images
big straw sedge, greater straw sedge — Carex normalis Mackenzie — 4 images
big-headed hornsedge, tall beaksedge — Rhynchospora macrostachya Torrey ex A.Gray — 50 images
bigleaf holly, mountain holly — Ilex montana Torrey & A.Gray ex A.Gray — 31 images
bigleaf magnolia — Magnolia macrophylla Michx. — 2 images
bigleaf pondweed — Potamogeton amplifolius Tuckerman — 7 images
bigtooth aspen — Populus grandidentata Michx. — 38 images
birchleaf spirea, white meadowsweet — Spiraea betulifolia Pall. — 5 images
bird vetch — Vicia cracca ssp. cracca L. — 13 images
birdseye speedwell, germander speedwell — Veronica chamaedrys L. — 4 images
birdsfoot trefoil — Lotus corniculatus L. — 10 images
birdsfoot violet — Viola pedata L. — 34 images
bitter panicgrass — Panicum amarum ssp. amarulum (A.S.Hitchc. & Chase) Freckmann & Lelong — 11 images
bitternut hickory, swamp hickory — Carya cordiformis (Wangenh.) K.Koch — 13 images
black ash — Fraxinus nigra Marshall — 21 images
black bentgrass, redtop bentgrass — Agrostis gigantea Roth — 6 images
black bindweed, false buckwheat — Fallopia convolvulus (L.) A.Löve — 7 images
black bugbane, black cohosh, black snakeroot — Actaea racemosa L. — 6 images
black bulrush, Georgia bulrush — Scirpus georgianus Harper — 6 images
black cherry — Prunus serotina var. serotina Ehrh. — 82 images
black chokeberry — Aronia melanocarpa (Michx.) Ell. — 37 images
black highbush blueberry — Vaccinium fuscatum Ait. — 35 images
black huckleberry — Gaylussacia baccata (Wangenh.) K.Koch — 55 images
black jetbead, white kerria — Rhodotypos scandens (Thunb.) Makino — 25 images
black knapweed — Centaurea nigra L. — 3 images
black locust — Robinia pseudoacacia L. — 39 images
black maple — Acer nigrum Michx.f. — 9 images
black medick — Medicago lupulina L. — 5 images
black oak — Quercus velutina Lam. — 52 images
black raspberry — Rubus occidentalis L. — 23 images
black snakeroot, Canada snakeroot, Canadian sanicle — Sanicula canadensis var. canadensis L. — 6 images
black spruce — Picea mariana (P.Miller) B.S.P. — 36 images
black swallowwort — Vincetoxicum nigrum (L.) Moench — 23 images
black walnut — Juglans nigra L. — 15 images
black willow — Salix nigra Marsh. — 69 images
black-eyed Susan, black-eyed coneflower — Rudbeckia hirta var. pulcherrima Farw. — 32 images
black-fruited chokecherry — Prunus virginiana var. melanocarpa (A.Nelson) Sarg. — 3 images
black-fruited false mountain ash — ×Sorbaronia fallax C.K.Schneid. — 3 images
black-fruited spikerush, black-fruited spikesedge — Eleocharis melanocarpa Torrey — 46 images
black-girdled woolsedge, dusky woolgrass — Scirpus atrocinctus Fern. — 2 images
blackseeded speargrass, black oatgrass — Piptochaetium avenaceum (L.) Parodi — 25 images
bladder campion — Silene vulgaris ssp. vulgaris (Moench) Garcke — 8 images
bladder senna — Colutea arborescens L. — 3 images
bladder-pod lobelia, Indian tobacco — Lobelia inflata L. — 30 images
blood amaranth × Powell's amaranth — Amaranthus cruentus × A. powellii — 7 images
blood-twig dogwood, European common dogwood — Swida sanguinea (L.) Opiz — 4 images
bloodroot — Sanguinaria canadensis L. — 22 images
bloody cranesbill, blood-red cranesbill, bloody geranium — Geranium sanguineum L. — 15 images
blue Jacob's ladder — Polemonium caeruleum L. — 1 images
blue false indigo — Baptisia australis var. australis (L.) R.Br. ex Ait.f. — 12 images
blue heartleaf aster — Symphyotrichum cordifolium (L.) G.L.Nesom — 15 images
blue huckleberry, dangleberry — Gaylussacia frondosa (L.) Torr. & A.Gray ex Torr. — 43 images
blue mistflower — Conoclinium coelestinum (L.) DC. — 6 images
blue plantain lily — Hosta ventricosa (Salisb.) Stearn — 6 images
blue scorpion grass — Myosotis stricta Link ex Roemer & J.A.Schultes — 27 images
blue spruce — Picea pungens Engelm. — 15 images
blue toadflax, old-field toadflax — Linaria canadensis (L.) Chaz. — 37 images
blue vervain, common vervain — Verbena hastata var. hastata L. — 21 images
blue wood lettuce, tall blue lettuce — Lactuca biennis (Moench) Fern. — 12 images
bluebead lily — Clintonia borealis (Aiton) Raf. — 44 images
blunt broom sedge — Carex tribuloides Wahlenb. — 20 images
blunt-leaved grove sandwort — Moehringia lateriflora (L.) Fenzl — 15 images
blunt-leaved marsh bedstraw, large marsh bedstraw — Galium obtusum ssp. obtusum Bigelow — 4 images
blunt-lobed cliff fern, blunt-lobed woodsia — Woodsia obtusa ssp. obtusa (Spreng.) Torr. — 11 images
blunt-lobed grapefern — Sceptridium oneidense (Gilbert) Holub — 24 images
blunt-lobed liverleaf, blunt-lobed liverwort — Hepatica americana (DC.) Ker Gawler — 30 images
bog aster — Oclemena nemoralis (Aiton) Greene — 12 images
bog huckleberry — Gaylussacia bigeloviana (Fern.) Sorrie & Weakley — 25 images
bog laurel — Kalmia polifolia Wangenh. — 5 images
bog rosemary — Andromeda polifolia var. glaucophylla (Link) DC. — 3 images
bog white violet, lanceleaf violet — Viola lanceolata ssp. lanceolata L. — 40 images
bog willow — Salix pedicellaris Pursh — 37 images
bog yellow-eyed grass — Xyris difformis var. difformis Chapman — 26 images
bogbean, buckbean — Menyanthes trifoliata L. — 7 images
border forsythia — Forsythia intermedia Zabel — 22 images
bottle sedge, beaked sedge, swollen-beaked sedge — Carex utriculata Boott — 29 images
bottlebrush buckeye — Aesculus parviflora Walt. — 16 images
bower actinidia, tara vine — Actinidia arguta (Sieb. & Zucc.) Planch. ex Miq. — 21 images
boxelder — Acer negundo var. negundo L. — 18 images
boxleaf knotweed, box knotweed — Polygonum buxiforme Small — 21 images
bracken fern — Pteridium aquilinum var. latiusculum (Desv.) L.Underw. ex A.Heller — 32 images
brackish Baltic rush — Juncus balticus ssp. littoralis (Engelm.) Snogerup — 3 images
bracted lousewort — Pedicularis bracteosa Benth. — 2 images
bracted plantain — Plantago aristata Michx. — 18 images
branching centaury, branched centaury — Centaurium pulchellum (Sw.) Druce — 4 images
bread wheat — Triticum aestivum L. — 3 images
bridalwreath meadowsweet — Spiraea prunifolia Sieb. & Zucc. — 7 images
bristly Smith's clubsedge, bristly Smith's bulrush — Schoenoplectiella smithii var. setosa (Fern.) Shiels & Monfils — 13 images
bristly aster, swamp aster, purple-stemmed ater — Symphyotrichum puniceum var. puniceum (L.) A.Löve & D.Löve — 37 images
bristly blackberry — Rubus setosus Bigelow — 7 images
bristly dewberry — Rubus hispidus L. — 47 images
bristly locust — Robinia hispida var. hispida L. — 20 images
bristly sarsaparilla — Aralia hispida Vent. — 36 images
bristly sedge, bearded sedge — Carex comosa Boott — 33 images
brittle willow (white willow × West Asian willow) — Salix ×fragilis L. pro sp. — 24 images
broad beech fern, southern beech fern — Phegopteris hexagonoptera (Michx.) Fée — 6 images
broad three-seeded mercury — Acalypha rhomboidea Raf. — 18 images
broad-leaf bamboo — Sasa cf.palmata — 2 images
broad-leaved Solomon's seal — Polygonatum latifolium (Jacq.) Desf. — 5 images
broad-leaved cattail — Typha latifolia L. — 30 images
broad-leaved enchanter's nightshade — Circaea canadensis ssp. canadensis (L.) Hill — 22 images
broad-leaved eryngo, Plains eryngo — Eryngium planum L. — 9 images
broad-leaved helleborine — Epipactis helleborine (L.) Crantz — 35 images
broad-leaved panicgrass — Dichanthelium latifolium (L.) Gould & Glark — 26 images
broad-leaved pepperweed, tall pepperweed, broad-leaved peppergrass — Lepidium latifolium L. — 18 images
broad-leaved pussytoes — Antennaria parlinii ssp. fallax (Greene) Bayer & Stebbins — 4 images
broad-leaved ragwort, running groundsel — Packera obovata (Muhl. ex Willd.) W.A.Weber & A.Löve — 15 images
broad-leaved sedge, broad-leaved woodland sedge — Carex platyphylla Carey — 3 images
broad-leaved springbeauty — Claytonia caroliniana Michx. — 26 images
broad-leaved white meadowsweet — Spiraea alba var. latifolia (Aiton) Dippel — 25 images
broad-leaved woolly fruited sedge, woolly sedge — Carex pellita Muhl. — 10 images
broad-lobed dandelion — Taraxacum latilobum DC. — 4 images
brome-like sedge — Carex bromoides Schkuhr ex Willd. — 6 images
broom crowberry — Corema conradii (Torrey) Torrey ex Loudon — 48 images
broomsedge bluestem, Virginia broomsedge — Andropogon virginicus var. virginicus L. — 7 images
brown beaksedge, sooty beakrush — Rhynchospora fusca (L.) Ait.f. — 8 images
brown knapweed — Centaurea jacea L. — 2 images
brown mustard, Oriental mustard, Chinese mustard — Brassica juncea (L.) Czern. — 3 images
brownish beakrush, brownish beaksedge — Rhynchospora capitellata (Michx.) Vahl — 37 images
brownish sedge — Carex brunnescens var. sphaerostachya (Tuckerman) Kükenth. — 7 images
bulbil fragile fern, bulblet bladder fern — Cystopteris bulbifera (L.) Bernh. — 10 images
bulblet-bearing water hemlock — Cicuta bulbifera L. — 19 images
bulbous bittercress, spring cress — Cardamine bulbosa (Schreb. ex Muhl.) B.S.P. — 7 images
bulbous bluegrass — Poa bulbosa ssp. vivipara (Koel.) Arcang. — 17 images
bulbous buttercup, bulbous crowfoot, St. Anthony's turnip — Ranunculus bulbosus L. — 34 images
bulbous woodrush — Luzula bulbosa (Wood) Rydb. — 2 images
bunchberry, dwarf cornel — Chamaepericlymenum canadense (L.) Aschers. & Graebn. — 21 images
bur oak — Quercus macrocarpa Michx. — 6 images
burning nettle — Urtica urens L. — 9 images
burr chervil — Anthriscus caucalis M.Bieb. — 5 images
bushclover — Lespedeza sp. — 4 images
bushy bluestem, bunched broomsedge — Andropogon glomeratus var. glomeratus (Walter) B.S.P. — 31 images
bushy frostweed, bushy rockrose — Crocanthemum dumosum Bicknell — 26 images
butterbur, butterbur sweet coltsfoot — Petasites hybridus (L.) Gaertner, B.Meyer & Scherb. — 15 images
butterfly bush, summer lilac — Buddleja davidii Franch. — 26 images
butterfly milkweed — Asclepias tuberosa L. — 33 images
butternut, white walnut — Juglans cinerea L. — 11 images
button eryngo — Eryngium yuccifolium var. yuccifolium Michx. — 5 images
button sedge — Carex bullata Schkuhr ex Willd. — 27 images
buttonbush dodder — Cuscuta cephalanthi Engelm. — 11 images
calamint — Clinopodium cf. menthifolium (Host) Stace — 9 images
calico aster, goblet aster — Symphyotrichum lateriflorum (L.) A.Löve & D.Löve — 22 images
caper spurge, gopher spurge — Euphorbia lathyris L. — 10 images
cardinalflower — Lobelia cardinalis L. — 30 images
carpet bugleweed, common bugle, blue bugle — Ajuga reptans L. — 18 images
carrion flower, smooth herbaceous greenbrier — Smilax herbacea L. — 24 images
castor aralia — Kalopanax septemlobus (Thunb.) Koidz. — 11 images
castor bean, castor oil plant — Ricinus communis L. — 5 images
catberry, mountain holly, swamp holly — Ilex mucronata (L.) M.Powell, Savol. & S.Andrews — 70 images
catbrier, bullbrier, common greenbrier — Smilax rotundifolia L. — 33 images
catnip — Nepeta cataria L. — 9 images
cattail sedge — Carex typhina Michx. — 4 images
cedar glade St. John's-wort, golden St. John's-wort — Hypericum frondosum Michx. — 1 images
cedar of Lebanon — Cedrus libani A.Rich. — 2 images
celandine poppy — Stylophorum diphyllum (Michx.) Nutt. — 14 images
celery — Apium graveolens L. — 7 images
checkered rattlesnake plantain — Goodyera tesselata Lodd. — 18 images
cherry plum, myrobalan plum — Prunus cerasifera Ehrh. — 9 images
chervil — Anthriscus sylvestris (L.) Hoffmann — 24 images
chestnut oak — Quercus montana Willd. — 37 images
chocolate vine, five-leaflet akebia — Akebia quinata (Houtt.) Dcne. — 28 images
chokecherry — Prunus virginiana var. virginiana L. — 51 images
chosenia — Chosenia arbutifolia (Pallas) A.Skv. — 3 images
cinnamon fern — Osmundastrum cinnamomeum (L.) C.Presl — 39 images
cinnamon rose — Rosa cinnamomea L. — 4 images
city goosefoot, city Eurasian goosefoot — Oxybasis urbica (L.) S.Fuentes, Uotila & Borsch — 5 images
clammy chickweed, sticky chickweed — Cerastium glomeratum Thuill. — 9 images
clammy groundcherry — Physalis heterophylla var. heterophylla Nees — 21 images
clammy locust — Robinia viscosa var. viscosa Vent. — 8 images
clasping aster, skydrops, skydrop aster — Symphyotrichum patens var. patens (Aiton) G.L.Nesom — 20 images
clasping hartleaf aster, wavyleaf aster — Symphyotrichum undulatum (L.) G.L.Nesom — 31 images
clasping milkweed — Asclepias amplexicaulis Sm. — 35 images
cleft hempnettle, split-lipped hempnettle — Galeopsis bifida Boenn. — 13 images
climbing false buckwheat, bindweed — Fallopia scandens (L.) Holub — 26 images
climbing hempvine — Mikania scandens (L.) Willd. — 30 images
climbing hydrangea — Hydrangea anomala D.Don — 8 images
climbing nightshade, bittersweet nightshade, deadly nightshade — Solanum dulcamara var. dulcamara L. — 25 images
cluster-leaved ticktrefoil, pointed-leaf ticktrefoil — Hylodesmum glutinosum (Muhl. ex Willd.) H.Ohashi & R.R.Mill — 9 images
clustered bellflower — Campanula glomerata L. — 2 images
clustered sedge, crowded sedge — Carex cumulata (Bailey) Mackenzie — 12 images
coarse agrimony, grooved agrimony, roadside agrimony — Agrimonia striata Michx. — 17 images
coastal Douglas fir, Coast Douglas fir — Pseudotsuga menziesii ssp. menziesii (Mirbel) Franco — 25 images
coastal barnyard grass, Walter's cockspur — Echinochloa walteri (Pursh) Heller — 14 images
coastal jointed knotweed, jointweed — Polygonum articulatum L. — 36 images
coastal sandbur — Cenchrus spinifex Cav. — 10 images
cockscomb — Celosia cristata L. — 9 images
cockspur hawthorn — Crataegus crus-galli L. — 12 images
coltsfoot — Tussilago farfara L. — 51 images
comb violet — Viola pectinata Bicknell — 21 images
common Eurasian St. John's-wort — Hypericum perforatum L. — 22 images
common European ash — Fraxinus excelsior L. — 6 images
common European hops — Humulus lupulus ssp. lupulus L. — 4 images
common European hound's tongue — Cynoglossum officinale L. — 6 images
common European pear — Pyrus communis L. — 27 images
common Timothy — Phleum pratense L. — 18 images
common agrimony — Agrimonia gryposepala Wallr. — 36 images
common arrowhead, duck potato — Sagittaria latifolia Willd. — 34 images
common barley — Hordeum vulgare L. — 3 images
common barnyard grass — Echinochloa crus-galli (L.) Beauv. — 22 images
common beggarticks, devil's pitchforks — Bidens frondosa L. — 22 images
common bittercress, Pennsylvania bittercress — Cardamine pensylvanica Muhl. ex Willd. — 29 images
common bleeding heart — Lamprocapnos spectabilis (L.) Fukuhara — 2 images
common blue violet, woolly blue violet — Viola sororia Willd. — 40 images
common boneset, boneset thoroughwort — Eupatorium perfoliatum L. — 49 images
common borage, European starflower — Borago officinalis L. — 5 images
common bulrush, common woolsedge, common woolgrass — Scirpus cyperinus (L.) Kunth — 33 images
common bur-reed, American bur-reed — Sparganium americanum Nutt. — 33 images
common buttonbush — Cephalanthus occidentalis L. — 30 images
common chickweed — Stellaria media (L.) Vill. — 30 images
common chicory — Cichorium intybus L. — 13 images
common cinquefoil, oldfield cinquefoil — Potentilla simplex Michx. — 14 images
common comfrey — Symphytum officinale L. — 4 images
common dandelion — Taraxacum officinale G.H.Weber ex Wiggers — 28 images
common dodder, swamp dodder, strangleweed, love vine — Cuscuta gronovii var. gronovii Willd. ex J.A.Schult. — 19 images
common duckweed — Lemna minor L. — 7 images
common eelgrass — Zostera marina L. — 9 images
common evening primrose — Oenothera biennis L. — 39 images
common fennel, sweet fennel — Foeniculum vulgare P.Miller — 6 images
common fig — Ficus carica L. — 3 images
common flat-topped goldenrod, grassleaf flat-topped goldenrod — Euthamia graminifolia (L.) Nutt. — 16 images
common fox sedge — Carex vulpinoidea Michx. — 21 images
common foxglove, purple foxglove — Digitalis purpurea var. purpurea L. — 39 images
common fumitory, medicinal fumitory, earth smoke — Fumaria officinalis ssp. officinalis L. — 5 images
common grape hyacinth — Muscari botryoides (L.) P.Miller — 2 images
common groundsel, common ragwort — Senecio vulgaris L. — 14 images
common hackberry — Celtis occidentalis L. — 40 images
common hedge mustard — Sisymbrium officinale (L.) Scop. — 12 images
common henbit, henbit deadnettle — Lamium amplexicaule var. amplexicaule L. — 9 images
common hoptree, stinking ash, wafer ash — Ptelea trifoliata ssp. trifoliata var. trifoliata L. — 11 images
common houseleek, hens-and-chicks, hen-and-chickens — Sempervivum tectorum L. — 3 images
common juniper, pasture juniper — Juniperus communis var. depressa Pursh — 37 images
common knotweed, dooryard knotweed, doorweed — Polygonum aviculare ssp. aviculare L. — 1 images
common lady's mantle — Alchemilla vulgaris L. — 7 images
common lilac — Syringa vulgaris L. — 7 images
common lime — Tilia ×vulgaris Hayne — 2 images
common mallow, cheeses — Malva neglecta Wallr. — 16 images
common marsh bedstraw — Galium palustre L. — 4 images
common marsh mallow, medicinal marsh mallow — Althaea officinalis L. — 12 images
common milkweed — Asclepias syriaca L. — 32 images
common mullein — Verbascum thapsus L. — 31 images
common nipplewort — Lapsana communis L. — 24 images
common osier — Salix viminalis L. — 7 images
common partridge pea — Chamaecrista fasciculata (Michx.) Greene — 20 images
common pearlbush — Exochorda racemosa (Lindley) Rehder — 6 images
common periwinkle — Vinca minor L. — 34 images
common plantain, white man's foot — Plantago major L. — 21 images
common purslane — Portulaca oleracea L. — 20 images
common quickweed, hairy quickweed — Galinsoga quadriradiata Ruiz & Pavón — 13 images
common quince — Cydonia oblonga P.Miller — 3 images
common redtop panic-grass, flat-stemmed panicgrass — Coleataenia rigidula ssp. rigidula (Bosc ex Nees) LeBlond — 17 images
common reed — Phragmites australis (Cav.) Trin. ex Steudel — 80 images
common rose-gentian, common rose pink — Sabatia angularis (L.) Pursh — 3 images
common rough-stemmed goldenrod, common wrinkle-leaved goldenrod — Solidago rugosa ssp. rugosa P.Miller — 29 images
common sand spurry, red sand spurry — Spergularia rubra (L.) J.Presl & K.Presl — 13 images
common shepherd's cress — Teesdalia nudicaulis (L.) Ait.f. — 43 images
common snapdragon, garden snapdragon — Antirrhinum majus L. — 2 images
common sneezeweed — Helenium autumnale L. — 6 images
common soapwort, soapweed, bouncing bet — Saponaria officinalis L. — 22 images
common speedwell — Veronica officinalis L. — 18 images
common sunflower, mirasol — Helianthus annuus L. — 5 images
common tansy — Tanacetum vulgare L. — 16 images
common thistle, bull thistle — Cirsium vulgare (Savi) Ten. — 38 images
common threesquare, threesquare bulrush — Schoenoplectus pungens var. pungens (Vahl) Palla — 32 images
common valerian, garden heliotrope, all-heal — Valeriana officinalis L. — 10 images
common velvetgrass — Holcus lanatus L. — 26 images
common viper's bugloss, blue weed — Echium vulgare L. — 4 images
common water hyacinth — Eichhornia crassipes (Mart.) Solms-Laubach — 1 images
common watercress — Nasturtium officinale Ait.f. — 11 images
common winterberry — Ilex verticillata (L.) A.Gray — 55 images
common woodreed, sweet woodreed — Cinna arundinacea L. — 18 images
common woodrush — Luzula multiflora ssp. multiflora (Retz.) Lej. — 37 images
common yarrow, seaside yarrow — Achillea millefolium ssp. lanulosa (Nutt.) Piper — 23 images
common yellow rocket, common wintercress — Barbarea vulgaris W.T.Aiton — 46 images
common yellow woodsorrel — Oxalis stricta L. — 25 images
compact rush — Juncus conglomeratus L. — 5 images
concealed sedge, thicket sedge — Carex abscondita Mackenzie — 3 images
cone-bearing willow (pussy willow × upland willow) — Salix ×conifera Wangenh. (pro sp.) — 9 images
coralberry, red snowberry — Symphoricarpos orbiculatus Moench — 6 images
corn — Zea mays ssp. mays L. — 4 images
corn poppy, field poppy — Papaver rhoeas L. — 1 images
corn speedwell, field speedwell — Veronica arvensis L. — 18 images
corn spurry — Spergula arvensis L. — 5 images
cornel, cornelian cherry — Cornus mas L. — 6 images
cow herb, cowcockle — Vaccaria hispanica (P.Miller) Rauschert — 8 images
cow parsnip — Heracleum maximum Bartram — 42 images
cowwheat — Melampyrum lineare Desr. — 18 images
cream-colored avens, Virginia avens — Geum virginianum L. — 1 images
creeping buttercup, creeping crowfoot, spot-leaved crowfoot — Ranunculus repens L. — 30 images
creeping loosestrife, creeping Jenny, moneywort — Lysimachia nummularia L. — 12 images
creeping mahonia, creeping Oregon grape, creeping barberry — Berberis repens Lindl. — 2 images
creeping phlox — Phlox stolonifera Sims — 2 images
creeping poison ivy, western poison ivy — Toxicodendron rydbergii (Small ex Rydb.) Greene — 5 images
creeping snowberry — Gaultheria hispidula (L.) Muhl. ex Bigelow — 16 images
creeping woodsorrel — Oxalis corniculata L. — 10 images
crested dwarf iris — Lophiris cristata (Aiton) M.B.Crespo, Mart.-Azorín & Mavrodiev — 1 images
crested wheatgrass — Agropyron cristatum (L.) Gaertner — 2 images
crested wood fern — Dryopteris cristata (L.) A.Gray — 34 images
crimson clover — Trifolium incarnatum L. — 8 images
crinkleroot, two-leaved toothwort — Cardamine diphylla (Michx.) Wood — 23 images
crispy pondweed, curly pondweed — Potamogeton crispus L. — 3 images
crowned beggarticks, northern tickseed sunflower — Bidens trichosperma (Michx.) Britton — 18 images
cucumber tree, cucumbertree — Magnolia acuminata L. — 6 images
cultivar of Scots pine — Pinus sylvestris 'Watereri' — 7 images
cultivars — Narcissus spp. — 6 images
cultivated blue flax, European common flax — Linum usitatissimum L. — 3 images
cultivated garlic — Allium sativum var. sativum L. — 4 images
cultivated oat — Avena sativa L. — 1 images
cultivated purslane, red portulaca — Portulaca grandiflora Hooker — 7 images
cultivated rye — Secale cereale L. — 15 images
cultivated tobacco — Nicotiana tabacum L. — 2 images
cup plant — Silphium perfoliatum L. — 16 images
curly dock — Rumex crispus ssp. crispus L. — 27 images
cursed buttercup, celery-leaved buttercup, cursed crowfoot, celery-leaved crowfoot — Ranunculus sceleratus var. sceleratus L. — 10 images
cut-leaved grapefern, dissected grapefern — Sceptridium dissectum (Spreng.) Lyon — 9 images
cut-leaved mermaidweed, comb-leaved mermaidweed — Proserpinaca pectinata Lam. — 13 images
cut-leaved toothwort, five-parted toothwort — Cardamine concatenata (Michx.) Sw. — 6 images
cutleaf blackberry, evergreen blackberry — Rubus laciniatus Willd. — 23 images
cutleaf teasel — Dipsacus laciniatus L. — 19 images
cypress spurge — Euphorbia cyparissias L. — 22 images
daisyleaf moonwort — Botrychium matricariifolium (Döll) A.Braun ex W.D.J.Koch — 5 images
dame's rocket, dame's violet, Damask violet — Hesperis matronalis L. — 24 images
damson plum, plum of Damascus — Prunus insititia L. — 5 images
dark green bulrush, dark green bulsedge — Scirpus atrovirens Willd. — 4 images
dark-leaved willow, myrsine-leaved willow — Salix myrsinifolia Sm. — 5 images
date palm — Phoenix dactylifera L. — 1 images
dawn redwood — Metasequoia glyptostroboides Hu & W.C.Cheng — 10 images
dayflower — Commelina communis L. — 4 images
deerberry — Vaccinium stamineum L. — 6 images
deertongue panicgrass — Dichanthelium clandestinum (L.) Gould — 19 images
delicate sedge, bristle-stalk sedge — Carex leptalea ssp. leptalea Wahlenb. — 4 images
dense dodder, compact dodder — Cuscuta compacta var. compacta Juss. ex Choisy — 8 images
dense-flowered mullein — Verbascum densiflorum Bertol. — 21 images
devil's walkingstick, Hercules' club — Aralia spinosa L. — 5 images
dewdrop, Dalibard's dewberry — Dalibarda repens L. — 15 images
ditch stonecrop — Penthorum sedoides L. — 16 images
ditchgrass, widgeongrass — Ruppia maritima L. — 21 images
dock-leaved smartweed, nodding smartweed, willowweed smartweed — Persicaria lapathifolia (L.) S.F.Gray — 5 images
dog bentgrass, velvet bentgrass, brown bentgrass — Agrostis canina L. — 6 images
dog rose — Rosa canina L. — 16 images
doghobble, drooping fetterbush — Leucothoe fontanesiana (Steudel) Sleumer — 15 images
dollar plant, money plant, moonwort, annual honesty — Lunaria annua L. — 14 images
dotted smartweed — Persicaria punctata (Ell.) Small — 24 images
dove pincushions — Scabiosa columbaria L. — 4 images
downy arrowwood, Rafinesque's arrowwood — Viburnum rafinesqueanum var. rafinesqueanum J.A.Schultes — 4 images
downy false foxglove — Aureolaria virginica (L.) Pennell — 27 images
downy goldenrod — Solidago puberula var. puberula Nutt. — 20 images
downy groundcherry, strawberry tomato — Physalis grisea (Waterfall) M.Martinez — 5 images
downy hawthorn, Quebec hawthorn — Crataegus submollis Sarg. — 9 images
downy panicgrass — Dichanthelium columbianum (Scribn.) Freckmann — 8 images
downy rattlesnake plantain — Goodyera pubescens (Willd.) R.Br. — 18 images
downy shadbush, downy serviceberry — Amelanchier arborea (Michx.f.) Fern. — 14 images
downy swamp milkweed — Asclepias incarnata ssp. pulchra (Ehrh. ex Willd.) Woodson — 41 images
downy willowherb, northeastern willowherb — Epilobium strictum Muhl. ex Spreng. — 5 images
downy yellow violet — Viola pubescens var. pubescens Aiton — 13 images
dragon's mouth — Arethusa bulbosa L. — 7 images
drooping brome, downy chess — Bromus tectorum L. — 10 images
dryland sedge — Carex siccata Dewey — 6 images
dusty miller, silver ragwort — Jacobaea maritima (L.) Pelser & Meijden — 5 images
dustymiller, beach wormwood — Artemisia stelleriana Bess. — 16 images
dwarf Japanese knotweed — Reynoutria japonica var. compacta (Hook.f.) Buchheim — 5 images
dwarf St. John's-wort — Hypericum mutilum L. — 3 images
dwarf chestnut oak — Quercus prinoides Willd. — 65 images
dwarf chestnut oak × post oak — Quercus ×stelloides Palmer — 2 images
dwarf chestnut, chinquapin — Castanea pumila (L.) P.Miller — 13 images
dwarf chickweed, European chickweed — Cerastium pumilum ssp. pumilum W.Curtis — 8 images
dwarf cinquefoil — Potentilla canadensis L. — 23 images
dwarf ginseng — Panax trifolius L. — 25 images
dwarf glasswort — Salicornia bigelovii Torrey — 15 images
dwarf shadbush, running shadbush, running serviceberry, dwarf serviceberry, low serviceberry, low juneberry — Amelanchier spicata (Lam.) K.Koch — 50 images
dwarf spikerush, small-headed spikesedge — Eleocharis parvula (Roemer & Schultes) Link ex Bluff, Nees & Schauer — 7 images
dwarf upland willow, dwarf prairie willow — Salix occidentalis Walter — 89 images
dyer's greenweed — Genista tinctoria L. — 3 images
eared willow — Salix aurita L. — 11 images
early azalea — Rhododendron prinophyllum (Small) Millais — 17 images
early blue cohosh — Caulophyllum giganteum (Farw.) Loconte & W.H.Blackw. — 9 images
early buttercup, early crowfoot — Ranunculus fascicularis Muhl. ex Bigelow — 9 images
early goldenrod — Solidago juncea Aiton — 20 images
early meadowrue — Thalictrum dioicum L. — 24 images
early saxifrage — Micranthes virginiensis (Michx.) Small — 25 images
early scorpiongrass, spring forget-me-not, early forget-me-not — Myosotis verna Nutt. — 10 images
early yellow rocket, early wintercress — Barbarea verna (P.Mill.) Aschers. — 9 images
eastern black nightshade — Solanum emulans Raf. — 18 images
eastern blue-eyed grass — Sisyrinchium atlanticum Bicknell — 4 images
eastern bluestar — Amsonia tabernaemontana var. tabernaemontana Walter — 6 images
eastern bottlebrush grass — Elymus hystrix L. — 16 images
eastern cottonwood, necklace poplar — Populus deltoides ssp. deltoides Bartr. ex Marsh. — 41 images
eastern dwarf mistletoe — Arceuthobium pusillum Peck — 3 images
eastern false hellebore — Veratrum viride ssp. viride Aiton — 29 images
eastern figwort, Maryland figwort — Scrophularia marilandica L. — 7 images
eastern grasswort — Lilaeopsis chinensis (L.) Kuntze — 2 images
eastern hemlock — Tsuga canadensis (L.) Carr. — 58 images
eastern hophornbeam — Ostrya virginiana (P.Mill.) K.Koch — 42 images
eastern leatherwood — Dirca palustris L. — 14 images
eastern prickly gooseberry, wild gooseberry — Ribes cynosbati L. — 18 images
eastern prickly pear, devil's tongue — Opuntia humifusa (Raf.) Raf. — 8 images
eastern purple bladderwort — Utricularia purpurea Walter — 36 images
eastern red cedar — Juniperus virginiana var. virginiana virginiana — 72 images
eastern riverbank wild rye — Elymus riparius Wieg. — 5 images
eastern spindletree, eastern burning bush — Euonymus atropurpureus var. atropurpureus Jacq. — 5 images
eastern star sedge — Carex radiata (Wahlenb.) Small — 9 images
eastern white oak — Quercus alba L. — 76 images
eastern willowherb, purple-leaved willowherb, cinnamon willowherb — Epilobium coloratum Biehler — 3 images
eastern woodland sedge — Carex blanda Dewey — 13 images
ebony spleenwort — Asplenium platyneuron (L.) B.S.P. — 28 images
edging lobelia, garden lobelia, trailing lobelia — Lobelia erinus L. — 6 images
eggplant — Solanum melongena L. — 3 images
ellipsoid softstem spikerush — Eleocharis obtusa var. ellipsoidalis Fern. — 10 images
elliptic shinleaf, large-leaved shinleaf, waxflower shinleaf — Pyrola elliptica Nutt. — 25 images
elmleaf goldenrod — Solidago ulmifolia var. ulmifolia Muhl. ex Willd. — 30 images
erect water smartweed — Persicaria amphibia ssp. laevimarginata (Hultén) Soják — 2 images
evergreen candytuft — Iberis sempervirens L. — 4 images
eyebane sandmat — Euphorbia nutans Lag. — 5 images
faint-nerved woodland sedge, fine-nerved woodland sedge — Carex leptonervia (Fern.) Fern. — 8 images
fall dandelion, hawkbit — Scorzoneroides autumnalis ssp. autumnalis (L.) Moensch — 27 images
fall panicgrass — Panicum dichotomiflorum var. dichotomiflorum Michx. — 38 images
false Solomon's seal — Maianthemum racemosum ssp. racemosum (L.) Link — 22 images
false daisy — Eclipta prostrata (L.) L. — 9 images
false dragonhead — Physostegia virginiana ssp. virginiana (L.) Bentham — 4 images
false hop sedge — Carex lupuliformis Sartwell ex Dewey — 2 images
false indigo bush, false indigo — Amorpha fruticosa L. — 21 images
false spirea — Sorbaria sorbifolia (L.) A.Braun — 11 images
false stonecrop — Phedimus spurius (M.Bieb.) 't Hart — 1 images
false waterpepper smartweed, false water pepper, mild water pepper — Persicaria hydropiperoides (Michx.) Small — 28 images
fascicled panicgrass — Dichanthelium lanuginosum (Ell.) Gould — 21 images
feathertop, bushgrass — Calamagrostis epigeios var. georgica (K.Koch) Ledeb. — 28 images
fern flatsedge — Cyperus filicinus Vahl — 5 images
fernleaf false foxglove — Aureolaria pedicularia var. pedicularia (L.) Raf. — 37 images
fetterbush, mountain andromeda — Pieris floribunda (D.Don) Benth. & Hook. — 39 images
feverfew tansy — Tanacetum parthenium (L.) Sch.Bip. — 12 images
few-flowered nutsedge, papillose nutsedge, papillose nutrush — Scleria pauciflora var. pauciflora Muhl. ex Willd — 31 images
fewseeded sedge — Carex oligosperma Michx. — 13 images
fibrous-rooted sedge, colonial sedge — Carex communis var. communis Bailey — 2 images
fibrous-veined common knotweed — Polygonum aviculare ssp. rurivagum (Jordan ex Boreau) Berher — 23 images
field bindweed — Convolvulus arvensis L. — 9 images
field chamomile, dog chamomile, corn chamomile — Anthemis arvensis L. — 21 images
field chess, field brome — Bromus arvensis L. — 3 images
field dodder, prairie dodder — Cuscuta campestris Yuncker — 27 images
field forget-me-not, field scorpiongrass — Myosotis arvensis (L.) Hill — 6 images
field garlic, crow garlic — Allium vineale L. — 10 images
field horsetail, common horsetail — Equisetum arvense L. — 34 images
field mint, ginger mint — Mentha arvensis ssp. parietariifolia (Becker) Briq. — 2 images
field pennycress — Thlaspi arvense L. — 35 images
field pepperweed, field cress, cow cress — Lepidium campestre (L.) Ait.f. — 26 images
field pussytoes — Antennaria neglecta Greene — 8 images
field sowthistle, corn sowthistle — Sonchus arvensis var. arvensis L. — 8 images
field thistle — Cirsium discolor (Muhl. ex Willd.) Sprengel — 13 images
field woodrush — Luzula campestris (L.) DC. — 6 images
fireweed, pilewort — Erechtites hieraciifolius var. hieraciifolius (L.) Raf. ex DC. — 31 images
five-angled dodder, bushclover dodder — Cuscuta pentagona Engelm. — 19 images
five-leaved aralia — Eleutherococcus pentaphyllus (Sieb. & Zucc.) Nakai — 8 images
five-stamen chickweed — Cerastium semidecandrum L. — 23 images
five-stamen tamarisk, saltcedar — Tamarix chinensis Loureiro — 11 images
flame azalea — Rhododendron calendulaceum (Michx.) Torr. — 8 images
flameleaf sumac, winged sumac — Rhus copallinum var. latifolia Engler — 36 images
flat-stemmed bluegrass — Poa compressa L. — 14 images
flattened oatgrass, trail oatgrass, woodland oatgrass — Danthonia compressa Austin ex Peck — 25 images
flax-leaved stiff aster, spruce aster — Ionactis linariifolia (L.) Greene — 35 images
fleshy hawthorn — Crataegus succulenta var. succulenta Schrader ex Link — 8 images
floating mannagrass, eastern floatgrass — Glyceria septentrionalis var. septentrionalis A.S.Hitchc — 13 images
floating pondweed — Potamogeton natans L. — 6 images
florist's daisy, florist's chrysanthemum, hardy garden mum — Chrysanthemum ×morifolium Ramat. — 4 images
flowering dogwood — Benthamidia florida (L.) Spach — 50 images
flowering raspberry, thimbleberry — Rubus odoratus L. — 14 images
flowering spurge — Euphorbia corollata L. — 7 images
flowering woodsorrel, smooth woodsorrel — Oxalis florida Salisb. — 6 images
fly honeysuckle — Lonicera canadensis Bartram ex Marsh. — 19 images
foamflower — Tiarella stolonifera G.L.Nesom — 27 images
fool's parsley — Aethusa cynapium L. — 13 images
forest goldenrod, sharp-leaved goldenrod, cutleaf goldenrod, Atlantic goldenrod — Solidago arguta var. arguta Aiton — 10 images
fork-tipped needlegrass, fork-tipped threeawn — Aristida basiramea Engelm. ex Vasey — 8 images
forked bluecurls — Trichostema dichotomum L. — 29 images
forked campion, forking catchfly — Silene dichotoma Ehrh. — 9 images
forked coontail — Ceratophyllum echinatum A.Gray — 5 images
forked panicgrass — Dichanthelium dichotomum ssp. dichotomum (L.) Gould — 11 images
forked rush — Juncus dichotomus Ell. — 6 images
four-leaved milkweed — Asclepias quadrifolia Jacq. — 3 images
four-seed vetch — Vicia tetrasperma (L.) Schreber — 13 images
fowlmeadow bluegrass — Poa palustris L. — 6 images
fowlmeadow grass, fowl mannagrass — Glyceria striata (Lam.) A.S.Hitchc. — 12 images
fox grape — Vitis labrusca L. — 50 images
foxtail amaranth, purple amaranth — Amaranthus caudatus L. — 7 images
fragile fern, brittle bladder fern — Cystopteris fragilis (L.) Bernh. — 10 images
fragrant bedstraw, sweet-scented bedstraw — Galium triflorum Michx. — 16 images
fragrant sumac — Rhus aromatica Aiton — 11 images
freeway sedge — Carex praegracilis W.Boott — 10 images
freshwater cordgrass, prairie cordgrass — Spartina pectinata Link — 41 images
fringed bindweed — Fallopia cilinodis (Michx.) Holub — 8 images
fringed bleeding heart, eastern bleeding heart, Appalachian bleeding heart, turkey corn — Dicentra eximia (Ker Gawl.) Torrey — 2 images
fringed loosestrife — Lysimachia ciliata L. — 14 images
fringed milkwort, flowering wintergreen — Polygaloides paucifolia (Willd.) J.R.Abbott — 14 images
fringed sedge, awned sedge — Carex crinita var. crinita Lam. — 21 images
frosted hawthorn — Crataegus pruinosa var. pruinosa (Wendl.f.) K.Koch — 4 images
fuller's teasel, common teasel — Dipsacus fullonum L. — 3 images
fuzzy deutzia — Deutzia scabra Thunb. — 26 images
galingale sedge, flatsedge-like sedge, false flatsedge — Carex pseudocyperus L. — 13 images
garden asparagus — Asparagus officinalis L. — 16 images
garden buckwheat — Fagopyrum esculentum Moench — 12 images
garden burnet, salad burnet — Poterium sanguisorba L. ssp. balearicum (Bourg. ex Nyman) Stace — 10 images
garden columbine, European columbine — Aquilegia vulgaris L. — 7 images
garden cosmos, Mexican aster — Cosmos bipinnatus Cav. — 3 images
garden cucumber — Cucumis sativus L. — 1 images
garden forget-me-not, wood forget-me-not, woodland forget-me-not — Myosotis sylvatica Ehrh. ex Hoffm. — 11 images
garden knapweed, cornflower, bachelor's button — Centaurea cyanus L. — 3 images
garden lady's mantle — Alchemilla mollis (Buser) Rothm. — 2 images
garden loosestrife — Lysimachia vulgaris L. — 7 images
garden lupine, Washington lupine — Lupinus polyphyllus var. polyphyllus Lindley — 17 images
garden nasturtium — Tropaeolum majus L. — 4 images
garden pea — Pisum sativum L. — 1 images
garden peony, common peony — Paeonia officinalis L. — 2 images
garden petunia — Petunia axillaris (Lam.) B.S.P. — 2 images
garden phlox, summer phlox, fall phlox — Phlox paniculata L. — 2 images
garden red currant — Ribes rubrum L. — 17 images
garden rocket — Eruca vesicaria ssp. sativa (Mill.) Hegi — 2 images
garden strawberry — Fragaria ×ananassa (Weston) Duchesne ex Rozier — 3 images
garden tomato — Solanum lycopersicon var. lycopersicon L. — 8 images
garden tulip, Didier's tulip, Gesner's tulip — Tulipa gesneriana L. — 19 images
garden violet, wild pansy, Johnny-jump-up — Viola tricolor L. — 10 images
garlic chives, Chinese chives, Chinese leek — Allium tuberosum Rottler ex Spreng. non Roxb. — 7 images
garlic mustard — Alliaria petiolata (Bieb.) Cavara & Grande — 23 images
garlic pennycress, roadside pennycress — Mummenhoffia alliacea (L.) Esmailbegi & Al-Shehbaz — 26 images
giant Solomon's seal — Polygonatum biflorum (Walter) Ell. — 4 images
giant bur-reed, great bur-reed — Sparganium eurycarpum Engelm. ex A.Gray — 10 images
giant chickweed — Myosoton aquaticum (L.) Moench — 5 images
giant ironweed, tall ironweed — Vernonia gigantea (Walter) Trel. — 7 images
giant knotweed, Sakhalin knotweed — Reynoutria sachalinensis (F.Schmidt) Nakai — 11 images
giant ragweed — Ambrosia trifida var. trifida L. — 14 images
giant reed — Phragmites altissimus (Benth.) Mabille ex Debeaux — 24 images
glandular American germander, western American germander — Teucrium canadense var. occidentale (A.Gray) McClintock & Epling — 9 images
glandular willowherb, fringed willowherb, American willowherb — Epilobium ciliatum var. ciliatum Raf. — 33 images
glaucous slender wheatgrass — Elymus trachycaulus ssp. glaucus (Pease & Moore) Cody — 3 images
glaucous willow — Salix glauca L. — 2 images
globose watermeal — Wolffia columbiana Karsten — 6 images
glossy buckthorn — Frangula alnus P.Miller — 37 images
goat willow — Salix caprea L. — 9 images
goat's beard — Aruncus dioicus (Walter) Fern. — 7 images
goat's rue, rabbit pea — Tephrosia virginiana (L.) Pers. — 21 images
golden alexanders — Zizia aurea (L.) W.D.J.Koch — 14 images
golden clover, palmate hopclover — Trifolium aureum L. — 9 images
golden club — Orontium aquaticum L. — 3 images
golden flatsedge, lesser ricefield flatsedge — Cyperus microiria Steudel — 10 images
golden hedgehyssop, golden pert — Gratiola aurea Pursh — 43 images
golden ragwort, golden groundsel — Packera aurea (L.) A.Löve & D.Löve — 26 images
golden rain tree — Koelreuteria paniculata Laxm. — 15 images
golden saxifrage, watercarpet — Chrysosplenium americanum Schwein. ex Hooker — 22 images
golden seal — Hydrastis canadensis L. — 13 images
golden weeping willow (white willow × Babylon willow) — Salix ×sepulcralis auct. — 25 images
goldenchain tree — Laburnum anagyroides Medik. — 5 images
goldenstar, green-and-gold — Chrysogonum virginianum L. — 7 images
gooseneck loosestrife — Lysimachia clethroides Duby ex DC. — 4 images
goutweed, bishop's weed — Aegopodium podagraria L. — 33 images
grass-leaved stitchwort, field stitchwort, common stitchwort — Stellaria graminea L. — 29 images
grassleaf arrowhead — Sagittaria graminea var. graminea Michx. — 6 images
grassleaf pondweed — Potamogeton gramineus L. — 4 images
grassleaf rush — Juncus marginatus Rostk. — 12 images
gray birch — Betula populifolia Marsh. — 53 images
gray dogwood — Swida racemosa (Lam.) Moldenke — 24 images
gray goldenrod — Solidago nemoralis ssp. nemoralis Ait. — 21 images
gray willow, ash willow — Salix cinerea L. — 50 images
gray-headed prairie coneflower, gray-headed Mexican hat — Ratibida pinnata (Vent.) Barnh. — 14 images
great bladderwort, common bladderwort — Utricularia macrorhiza Le Conte — 26 images
great blue lobelia — Lobelia siphilitica var. siphilitica L. — 15 images
great butterbur, giant butterbur, Japanese sweet coltsfoot — Petasites japonicus (Sieb. & Zucc.) Maxim. — 21 images
great globethistle, pale globethistle — Echinops sphaerocephalus L. — 8 images
great laurel, rosebay — Rhododendron maximum L. — 42 images
great leopard's bane, greater false leopard's bane — Doronicum pardalianches L. — 29 images
great spurred violet — Viola selkirkii Pursh ex Goldie — 9 images
greater bladder sedge, swamp sedge — Carex intumescens Rudge — 19 images
greater burdock, great burdock — Arctium lappa L. — 5 images
greater celandine — Chelidonium majus L. — 16 images
greater duckweed, common duckmeal — Spirodela polyrrhiza (L.) Schleiden — 7 images
greater fringed gentian — Gentianopsis crinita (Froel.) Y.C.Ma — 11 images
greater masterwort — Astrantia major L. — 6 images
greater periwinkle — Vinca major L. — 13 images
greater snowdrop — Galanthus elwesii Hook.f. — 8 images
greater water dock — Rumex britannica L. — 25 images
greater water starwort, two-headed water starwort, variable water starwort — Callitriche heterophylla var. heterophylla Pursh — 41 images
green amaranth, slender amaranth — Amaranthus viridis L. — 7 images
green amaranth, slim amaranth, smooth pigweed — Amaranthus hybridus L. — 9 images
green arrow arum, bog arum, tuckahoe — Peltandra virginica (L.) Raf. ex Schott — 28 images
green ash — Fraxinus pennsylvanica Marshall — 59 images
green bean — Phaseolus vulgaris L. — 1 images
green foxtail — Setaria viridis (L.) Beauv. — 11 images
green hellebore — Helleborus viridis L. — 4 images
green rockcress — Boechera missouriensis (Greene) Al-Shehbaz — 5 images
green snowdrop, Woronow's snowdrop — Galanthus woronowii Losinsk. — 8 images
green woodland orchid, little clubspur bog orchid — Platanthera clavellata (Michx.) Luer — 17 images
green-flowered shinleaf — Pyrola chlorantha Sw. — 12 images
green-fruited bur-reed, simple-stemmed bur-reed, emergent bur-reed — Sparganium emersum var. emersum Rehmann — 14 images
green-headed coneflower, tall coneflower — Rudbeckia laciniata var. laciniata L. — 5 images
green-leaved willow, red osier — Salix purpurea × S. viminalis — 2 images
greenstem forsythia, Korean forsythia — Forsythia viridissima Lindl. — 9 images
grey alder — Alnus incana ssp. incana (L.) Moench — 8 images
ground ivy, gill-over-the-ground — Glechoma hederacea L. — 21 images
hair fescue, fine-leaved sheep fescue — Festuca filiformis Pourret — 9 images
hairy Solomon's seal — Polygonatum pubescens (Willd.) Pursh — 29 images
hairy bedstraw — Galium pilosum var. pilosum Aiton — 29 images
hairy bittersweet nightshade, hairy deadly nightshade — Solanum dulcamara var. villosissimum Desv. — 5 images
hairy boneset — Eupatorium pubescens Muhl. ex Willd. — 7 images
hairy bush honeysuckle — Diervilla rivularis Gattinger — 9 images
hairy bushclover — Lespedeza hirta ssp. hirta (L.) Hornem. — 13 images
hairy bushpea, Blue Ridge false lupine — Thermopsis villosa (Walter) Fern. & Schubert — 5 images
hairy cat's ear — Hypochaeris radicata L. — 47 images
hairy chess, meadow brome — Bromus commutatus Schrad. — 3 images
hairy crabgrass, large crabgrass — Digitaria sanguinalis (L.) Scop. — 30 images
hairy forked whitlow-wort, hairy forked chickweed — Paronychia fastigiata var. fastigiata (Raf.) Fern. — 8 images
hairy goldenaster — Heterotheca villosa (Pursh) Shinners — 2 images
hairy pinesap — Hypopitys lanuginosa (Michx.) Nutt. — 18 images
hairy pinweed — Lechea mucronata Raf. — 59 images
hairy red clover — Trifolium pratense var. villosum DC. — 7 images
hairy rupturewort — Herniaria hirsuta var. hirsuta L. — 5 images
hairy sand sedge, hairy shaved sedge — Carex tonsa var. rugosperma (Mackenzie) W.J.Crins — 6 images
hairy sedge, hammer sedge — Carex hirta L. — 5 images
hairy small-leaved ticktrefoil — Desmodium ciliare (Muhl. ex Willd.) DC. ex Loud. — 11 images
hairy vetch — Vicia villosa Roth — 4 images
hairy whorled mountain mint — Pycnanthemum verticillatum var. pilosum (Nutt.) Cooperrider — 4 images
hairy wild licorice, hairy forest bedstraw — Galium circaezans var. hypomalacum Fern. — 8 images
hairy willowherb — Epilobium hirsutum L. — 4 images
hairy woodmint — Blephilia hirsuta (Pursh) Bentham — 5 images
hairy-stemmed gooseberry, swamp gooseberry — Ribes hirtellum Michx. — 16 images
halberd-leaf orache, prostrate orache — Atriplex prostrata Bouchér ex DC. — 23 images
halberdleaf tearthumb — Persicaria arifolia (L.) Haraldson — 18 images
hard fescue — Festuca trachyphylla (Hack.) Krajina — 17 images
hard-stemmed bulrush — Schoenoplectus acutus var. acutus (Muhl. ex Bigel.) A.Löve & D.Löve — 6 images
harebell, bluebell, Scotch bellflower — Campanula rotundifolia L. — 1 images
harsh sunflower, pale-leaved sunflower — Helianthus strumosus L. — 10 images
hawkweed oxtongue — Picris hieracioides L. — 2 images
hayscented fern — Dennstaedtia punctilobula (Michx.) T.Moore — 67 images
heartleaf paper birch, mountain paper birch — Betula cordifolia Regel — 14 images
heartleaf umbrellawort, heartleaf four-o'clock — Mirabilis nyctaginea (Michx.) MacMillan — 13 images
heartleaf willow, diamond willow — Salix eriocephala Michx. — 61 images
heath white aster, squarrose white aster — Symphyotrichum ericoides var. ericoides (L.) G.L.Nesom — 11 images
hedge maple, field maple — Acer campestre L. — 3 images
hedgehog woodrush — Luzula echinata (Small) Hermann — 3 images
hemp dogbane, prairie dogbane, Indian hemp — Apocynum cannabinum L. — 14 images
hemp, marijuana — Cannabis sativa L. — 2 images
hidden bittercress, nursery bittercress — Cardamine occulta Hornem. — 31 images
highbush blackberry, Pennsylvania blackberry — Rubus pensilvanicus Poiret — 6 images
highbush blueberry — Vaccinium corymbosum L. — 73 images
hillside blueberry, dryland blueberry, early sweet blueberry — Vaccinium pallidum Ait. — 58 images
hispid hedgenettle, hairy hedgenettle — Stachys hispida Pursh — 15 images
hispid yellowcress — Rorippa palustris var. hispida (Desv.) Rydb. — 34 images
hoary bittercress, hairy rockcress — Cardamine hirsuta L. — 44 images
hoary false alyssum, hoary alyssum — Berteroa incana (L.) DC. — 19 images
hoary frostweed, hoary rockrose — Crocanthemum bicknellii (Fern.) Barnh. — 30 images
hoary mock-orange, Ozark mock-orange — Philadelphus pubescens Loisel. — 4 images
hoary mountain mint — Pycnanthemum incanum var. incanum (L.) Michx. — 5 images
hoary vervain — Verbena stricta Vent. — 9 images
hoary willow, long-beaked willow — Salix candida Fluegge ex Willd. — 19 images
hobblebush, witch-hobble — Viburnum lantanoides Michx. — 28 images
hollow-stemmed Joe-Pye-weed — Eutrochium fistulosum (Barratt) E.E.Lamont — 31 images
hollyhock — Alcea rosea L. — 10 images
honey locust — Gleditsia triacanthos L. — 21 images
hook-spurred violet, sand violet — Viola adunca var. adunca J.E.Sm. — 15 images
hooked buttercup, hooked crowfoot — Ranunculus recurvatus var. recurvatus Poiret — 31 images
hop sedge — Carex lupulina Muhl. ex Willd. — 21 images
horned Scots elm, horned wych elm — Ulmus glabra f. cornuta (I.David) Rehder — 4 images
horned bladderwort, naked bladderwort — Utricularia cornuta Michx. — 41 images
horned nightshade, buffalobur nightshade, buffalobur — Solanum rostratum Dunal — 11 images
hornwort, coontail — Ceratophyllum demersum L. — 15 images
horse chestnut — Aesculus hippocastanum L. — 20 images
horseradish — Armoracia rusticana Gaertner, B.Meyer & Scherb. — 5 images
humped bladderwort, creeping bladderwort — Utricularia gibba L. — 19 images
hybrid bittersweet — Celastrus orbiculatus × C. scandens — 5 images
hybrid bluebell — Hyacinthoides ×variabilis Geerinck — 12 images
hybrid blueberry — Vaccinium ×atlanticum Bicknell pro sp. — 13 images
hybrid cattail — Typha ×glauca Godron — 11 images
hybrid dogbane — Apocynum ×floribundum Greene — 5 images
hybrid flowering dogwood — Benthamidia florida × B. japonica — 3 images
hybrid honeysuckle, whitebell honeysuckle — Lonicera ×bella Zabel — 40 images
hybrid mulberry — Morus alba x rubra ? — 7 images
hybrid mulberry — Morus indica hybrid ? — 15 images
hybrid primrose — Primula ×polyantha Mill. — 4 images
hybrid rhododendron — Rhododendron maximum × R. catawbiense — 3 images
hybrid smoketree — Cotinus ×'Grace' — 11 images
hybrid sundew — Drosera ×eloisiana T.S.Bailey — 14 images
hybrid viburnum (twistwood × leatherleaf) — Viburnum ×rhytidophylloides Sur. — 7 images
hybrid willow — Salix pentandra × S. ×fragilis — 25 images
hyssop-leaved boneset — Eupatorium hyssopifolium L. — 23 images
hyssop-leaved hedgenettle, rough hedgenettle — Stachys hyssopifolia Michx. — 39 images
immigrant pondlily, immigrant spaterdock — Nuphar advena (Ait.) Ait.f. — 16 images
incomparable daffodil — Narcissus ×incomparabilis Mill. — 4 images
inkberry, inkberry holly — Ilex glabra (L.) A.Gray — 34 images
intermediate shadbush, intermediate serviceberry — Amelanchier ×intermedia Spach (pro sp.) — 61 images
intermediate wood fern — Dryopteris intermedia (Muhl. ex Willd.) A.Gray — 47 images
interrupted fern — Osmunda claytoniana L. — 38 images
ivyleaf morning glory — Ipomoea hederacea Jacq. — 3 images
jagged chickweed — Holosteum umbellatum ssp. umbellatum L. — 20 images
jeweled wakerobin — Trillium simile Gleason — 5 images
jointed rush, jointedleaf rush — Juncus articulatus L. — 7 images
jumpseed, Virginia smartweed — Persicaria virginiana (L.) Gaertner — 24 images
katsura tree — Cercidiphyllum japonicum Zieb. & Zucc. — 26 images
keeled garlic, witch's garlic — Allium carinatum L. — 8 images
kidney-leaf violet — Viola renifolia A.Gray — 12 images
kidney-leaved buttercup, small-flowered crowfoot — Ranunculus abortivus L. — 31 images
knotroot foxtail, bristly foxtail — Setaria parviflora (Poiret) Kerguélen — 4 images
kousa dogwood, big-bracted dogwood — Benthamidia japonica (Sieb. & Zucc.) H.Hara — 9 images
kudzu — Pueraria montana var. lobata (Willd.) Maesen & S.Almeida — 12 images
lace lovegrass, lace grass — Eragrostis capillaris (L.) Nees — 4 images
lace shrub — Neillia incisa (Thunb.) S.H.Oh — 3 images
lady's thumb smartweed, spotted lady's thumb — Persicaria maculosa S.F.Gray — 26 images
lance-leaved figwort, American figwort — Scrophularia lanceolata Pursh — 20 images
lanceleaf tickseed — Coreopsis lanceolata L. — 32 images
large floating bladderwort, swollen bladderwort, inflated bladderwort — Utricularia inflata Walter — 33 images
large purple fringed orchid, greater purple fringed bog orchid — Platanthera grandiflora (Bigelow) Lindl. — 6 images
large sweetgrass, sweet vernalgrass — Anthoxanthum odoratum L. — 21 images
large toothwort, three-leaved toothwort — Cardamine maxima (Nutt.) Wood — 9 images
large whorled pogonia — Isotria verticillata (Muhl. ex Willd.) Raf. — 11 images
large-calyx goosefoot — Chenopodium berlandieri var. macrocalycium (Aellen) Cronq. — 35 images
large-flowered merrybells, large-flowered bellwort — Uvularia grandiflora G.E.Smith — 10 images
large-leaved Dutchman's pipe — Isotrema macrophyllum (Lam.) C.F.Reed — 3 images
large-leaved aster — Eurybia macrophylla (L.) Cass. — 25 images
largeflower heartleaf — Hexastylis shuttleworthii (Britten & Baker f.) Small — 23 images
largepod pinweed — Lechea intermedia var. intermedia Leggett ex Britt. — 28 images
larger Canadian St. John's-wort — Hypericum majus (A.Gray) Britton — 3 images
larger water plantain, northern water plantain — Alisma triviale Pursh — 8 images
largeseed hawthorn — Crataegus macrosperma Ashe — 28 images
largethorn hawthorn — Crataegus macracantha var. macracantha Lodd. ex Loud. — 3 images
late blue cohosh — Caulophyllum thalictroides (L.) Michx. — 14 images
late boneset — Eupatorium serotinum Michx. — 7 images
lavender bladderwort, northeastern bladderwort, resupinate bladderwort — Utricularia resupinata B.D.Greene ex Bigelow — 23 images
lavender cotton — Santolina chamaecyparissus L. — 4 images
lavender giant hyssop × wrinkled giant hyssop — Agastache foeniculum × A. rugosa (Fisch. & C.A.Mey.) Kuntze — 5 images
lax soft rush — Juncus effusus ssp. solutus (Fern. & Wieg.) Hämet-Ahti — 13 images
leafy spurge — Euphorbia esula L. — 6 images
leatherleaf viburnum — Viburnum rhytidophyllum Hemsl. — 2 images
leatherleaf, cassandra — Chamaedaphne calyculata (L.) Moench — 54 images
lemon balm — Melissa officinalis L. — 23 images
leopard flower, blackberry lily — Belamcanda chinensis (L.) DC. — 9 images
lesser Canadian St. John's-wort — Hypericum canadense L. — 14 images
lesser bladder sedge, inflated sedge — Carex vesicaria L. — 7 images
lesser burdock, common burdock — Arctium minus Bernh. — 11 images
lesser celandine, pilewort, fig crowfoot — Ficaria verna Huds. — 24 images
lesser hopclover, little hopclover — Trifolium dubium Sibth. — 10 images
lesser quickweed, gallant soldiers — Galinsoga parviflora Cav. — 2 images
lesser snakeroot, aromatic snakeroot — Ageratina aromatica (L.) Spach — 6 images
lesser swinecress — Lepidium didymum L. — 16 images
lesser water plantain, southern water plantain — Alisma subcordatum Raf. — 24 images
lesser waterwort — Elatine minima (Nutt.) Fisch. & C.A.Mey. — 37 images
lettuce — Lactuca sp. — 5 images
licorice goldenrod, sweet goldenrod — Solidago odora ssp. odora Aiton — 38 images
lily-of-the-valley — Convallaria majalis L. — 34 images
lilyturf — Liriope graminifolia (L.) Baker — 6 images
limestone meadow sedge — Carex granularis Muhl. ex Willd. — 3 images
linden viburnum, linden arrowwood — Viburnum dilatatum Thunb. — 21 images
linear-leaved panicgrass — Dichanthelium linearifolium (Scribn.) Gould — 11 images
lion's foot, rattlesnake root — Nabalus serpentarius (Pursh) Hooker — 11 images
little bluestem — Schizachyrium scoparium var. scoparium (Michx.) Nash — 25 images
little bluet — Houstonia caerulea L. — 32 images
little brown jug — Hexastylis arifolia (Michx.) Small — 7 images
little evening primrose, little sundrops — Oenothera perennis L. — 11 images
little floating heart — Nymphoides cordata (Ell.) Fern. — 26 images
little ladies' tresses — Spiranthes tuberosa Raf. — 10 images
little merrybells, sessile-leaved merrybells, sessile-leaved bellwort — Uvularia sessilifolia L. — 47 images
little ricegrass, short-awned mountain ricegrass — Piptatheropsis pungens (Torr.) Romasch., P.M.Peterson & Soreng — 21 images
little sweet Betsy — Trillium cuneatum Raf. — 7 images
little yellow rattle — Rhinanthus minor ssp. minor L. — 12 images
live-forever — Hylotelephium telephium ssp. telephium (L.) H.Ohba — 14 images
livid amaranth — Amaranthus blitum ssp. emarginatus (Moq. ex Uline & Bray) Carretero — 7 images
long-beaked Pennsylvania sedge, Blue Ridge sedge — Carex lucorum ssp. lucorum Willd. ex Link — 16 images
long-beaked baldsedge, long-beaked beaksedge — Rhynchospora scirpoides (Torrey) A.Gray — 56 images
long-headed coneflower, prarie coneflower, prairie Mexican hat — Ratibida columnifera (Nutt.) Woot. & Standl. — 5 images
long-leaved bluet — Houstonia longifolia Gaertn. — 17 images
long-leaved bushclover — Lespedeza ×longifolia DC. — 3 images
long-leaved groundcherry — Physalis longifolia var. subglabrata (Mackenzie & Bush) Cronq. — 15 images
long-leaved pondweed — Potamogeton nodosus Poiret — 4 images
long-leaved stitchwort, long-leaved starwort — Stellaria longifolia var. longifolia Muhl. ex Willd. — 6 images
long-spiked bulrush, New England tuber bulrush — Bolboschoenus novae-angliae (Britton) S.G.Smith — 6 images
long-spurred violet — Viola rostrata Pursh — 14 images
long-stalked aster, bushy aster, rice-button aster — Symphyotrichum dumosum (L.) G.L.Nesom — 15 images
long-stalked monkeyflower, square-stemmed monkeyflower, Allegheny monkeyflower — Mimulus ringens L. — 17 images
long-stalked sedge — Carex pedunculata ssp. pedunculata Muhl. ex Willd. — 7 images
long-styled sweet cicely, aniseroot — Osmorhiza longistylis (Torrey) DC. — 20 images
long-tailed wild ginger, western wild ginger — Asarum caudatum Lindl. — 6 images
longbranch frostweed, Canada frostweed — Crocanthemum canadense (L.) Britton — 59 images
loosely flowered woodland sedge, broad loosely flowered sedge — Carex laxiflora Lam. — 27 images
lopsided rush — Juncus secundus Beauv. ex Poiret — 5 images
low baby's breath, cushion baby's breath — Gypsophila muralis L. — 7 images
low cudweed, brown cudweed — Gnaphalium uliginosum L. — 9 images
low frostweed, low rockrose — Crocanthemum propinquum (Bicknell) Bicknell — 32 images
low hairy groundcherry — Physalis pubescens var. integrifolia (Dunal) Waterfall — 14 images
lowbush blueberry — Vaccinium angustifolium Ait. — 43 images
lowly watermilfoil — Myriophyllum humile (Raf.) Morong — 47 images
lungwort, Bethlehem sage — Pulmonaria saccharata Mill. — 11 images
mad-dog skullcap, blue skullcap — Scutellaria lateriflora L. — 16 images
mahaleb cherry — Prunus mahaleb L. — 4 images
maiden pink — Dianthus deltoides L. — 4 images
maidenhair spleenwort — Asplenium trichomanes L. — 7 images
maleberry — Lyonia ligustrina var. ligustrina (L.) DC. — 62 images
many-flowered marsh pennywort, pondshore pennywort, water pennywort — Hydrocotyle umbellata L. — 27 images
many-seeded goosefoot, manyseed goosefoot — Lipandra polysperma var. polysperma (L.) S.Fuentes, Uotila & Borsch — 8 images
many-spiked flatsedge, Texas flatsedge — Cyperus polystachyos Rottb. — 7 images
mapleleaf goosefoot, giant-seeded goosefoot, large-seeded false goosefoot — Chenopodiastrum simplex (Torr.) S.Fuentes, Uotila & Borsch — 7 images
mapleleaf viburnum — Viburnum acerifolium L. — 26 images
marginal wood fern — Dryopteris marginalis (L.) A.Gray — 50 images
maritime marsh elder, bigleaf marsh elder, saltmarsh elder, hightide bush — Iva frutescens L. — 23 images
marsh bentgrass, carpet bentgrass, creeping bentgrass, creeping bent, spreading bent — Agrostis stolonifera L. — 4 images
marsh blue violet — Viola cucullata Aiton — 19 images
marsh cinquefoil — Comarum palustre L. — 12 images
marsh marigold — Caltha palustris L. — 17 images
marsh marigold — Psychrophila leptosepala (DC.) W.A.Weber — 1 images
marsh mermaidweed, common mermaidweed — Proserpinaca palustris L. — 16 images
marsh rush, Canada rush — Juncus canadensis J.Gay ex Laharpe — 32 images
marsh scullcap, common scullcap — Scutellaria galericulata L. — 12 images
marsh sedge, lakeside sedge — Carex lacustris Willd. — 14 images
marsh seedbox, water purslane — Ludwigia palustris (L.) Elliott — 26 images
marsh speedwell, narrow-leaved speedwell — Veronica scutellata L. — 14 images
marsh willowherb — Epilobium palustre L. — 3 images
mat-forming common knotweed — Polygonum aviculare ssp. depressum (Meisner) Arcangeli — 16 images
matte saxifrage, spotted saxifrage — Saxifraga bronchialis L. — 2 images
matted pearlwort, birdseye pearlwort — Sagina procumbens L. — 12 images
mayapple, wild mandrake — Podophyllum peltatum L. — 17 images
meadow bottle gentian — Gentiana clausa Raf. — 11 images
meadow bulrush, mosquito bulrush — Scirpus hattorianus Makino — 12 images
meadow cranesbill, meadow geranium — Geranium pratense L. — 2 images
meadow evening primrose, hairy sundrops — Oenothera pilosella ssp. pilosella Raf. — 2 images
meadow fescue, meadow ryegrass — Schedonorus pratensis (Hudson) Beauv. — 5 images
meadow foxtail — Alopecurus pratensis L. — 9 images
meadow hawkweed, king-devil — Pilosella caespitosa (Dumort.) P.D.Sell & C.West — 9 images
meadow spikemoss — Selaginella apoda (L.) Spring — 9 images
meadow thistle, elk thistle, dwarf thistle — Cirsium scariosum Nutt. — 1 images
medicinal sage — Salvia officinalis L. — 2 images
memorial rose — Rosa luciae Franch. & Rochebr. ex Crépin — 20 images
milk parsley — Peucedanum palustre (L.) Moensch — 11 images
millet sedge, grass-like sedge — Carex panicea L. — 11 images
mockernut hickory — Carya tomentosa (Lam. ex Poiret) Nutt. — 27 images
mosquito fern — Azolla cristata Mett. — 13 images
moss phlox, creeping phlox — Phlox subulata ssp. subulata L. — 5 images
moss stonecrop, goldmoss stonecrop — Sedum acre L. — 5 images
moth mullein — Verbascum blattaria L. — 25 images
motherwort — Leonurus cardiaca L. — 25 images
mountain alder, green alder — Alnus viridis ssp. crispa (Aiton) Turrill — 6 images
mountain alder, thinleaf alder — Alnus incana ssp. tenuifolia (Nutt.) Breitung — 3 images
mountain bluebells — Mertensia ciliata (James ex Torr.) G.Don — 1 images
mountain cranesbill, Robert's geranium, herb-Robert — Geranium robertianum L. — 27 images
mountain fetterbush — Eubotrys recurva (Buckley) Britton — 15 images
mountain fleece, red bistort — Bistorta amplexicaulis (D.Don) Greene — 10 images
mountain knapweed — Centaurea montana L. — 2 images
mountain laurel — Kalmia latifolia L. — 63 images
mountain maple — Acer spicatum Lam. — 16 images
mountain snow spurge, snow-on-the-mountain — Euphorbia marginata Pursh — 4 images
mountain snowberry — Symphoricarpos oreophilus A.Gray — 1 images
mountain spray, rock-spiraea — Holodiscus dumosus (Nutt. ex Hook.) A.Heller — 3 images
mountain willow — Salix monticola Bebb — 3 images
mountain woodsorrel, northern woodsorrel — Oxalis montana Raf. — 12 images
mouse-ear chickweed — Cerastium fontanum ssp. vulgare (Hartman) Greuter & Burdet — 41 images
mouse-ear cress — Arabidopsis thaliana (L.) Heynh. — 51 images
mouse-ear hawkweed — Pilosella officinarum Vaill. — 8 images
mud hedgehyssop, clammy hedgehyssop — Gratiola neglecta Torrey — 5 images
mud sedge — Carex limosa L. — 5 images
mugo pine, Swiss mountain pine — Pinus mugo Turra — 3 images
mugwort, European common wormwood — Artemisia vulgaris L. — 26 images
mullein lychnis, mullein pink — Lychnis coronaria (L.) Murray — 11 images
multiflora rose hybrid — Rosa chinensis × R. multiflora (Polyantha Group) — 17 images
multiflora rose, rambler rose — Rosa multiflora Thunb. ex Murray — 39 images
musk mallow — Malva moschata L. — 9 images
musk willow, Persian willow — Salix aegyptiaca L. [and/or its hybrids] — 15 images
naked ticktrefoil, naked-flower ticktrefoil — Hylodesmum nudiflorum (L.) H.Ohashi & R.R.Mill — 7 images
nannyberry, sweet viburnum — Viburnum lentago L. — 43 images
narrow beech fern, northern beech fern — Phegopteris connectilis (Michx.) Watt — 19 images
narrow-fruited beaksedge, inundated hornsedge — Rhynchospora inundata (Oakes) Fern. — 15 images
narrow-leaved blue-eyed grass, stout blue-eyed grass — Sisyrinchium angustifolium P.Miller — 27 images
narrow-leaved Kentucky bluegrass, narrow-leaved June grass — Poa pratensis ssp. angustifolia (L.) Arcang. — 8 images
narrow-leaved bushclover — Lespedeza angustifolia (Pursh) Ell. — 9 images
narrow-leaved cattail — Typha angustifolia L. — 16 images
narrow-leaved common knotweed — Polygonum aviculare ssp. neglectum (Besser) Arcangeli — 9 images
narrow-leaved loosestrife, lowland loosestrife — Lysimachia hybrida Michx. — 12 images
narrow-leaved pinweed, slender pinweed — Lechea tenuifolia Michx. — 18 images
narrow-leaved plantain, English plantain, ribgrass plantain — Plantago lanceolata L. — 22 images
narrow-leaved springbeauty — Claytonia virginica L. — 16 images
narrow-leaved vetch — Vicia sativa ssp. nigra (L.) Ehrh. — 7 images
narrow-leaved vetchling, narrow-leaved everlasting pea, flat pea — Lathyrus sylvestris L. — 13 images
narrow-leaved white-topped aster — Sericocarpus linifolius (L.) B.S.P. — 14 images
narrow-leaved willowherb, bog willowherb — Epilobium leptophyllum Raf. — 4 images
narrowleaf bittercress, bushy rockcress — Cardamine impatiens L. — 21 images
narrowleaf cottonwood — Populus angustifolia James — 5 images
narrowleaf plantain lily — Hosta lancifolia Tratt. — 3 images
needle spikerush, needle spikesedge — Eleocharis acicularis (L.) Roemer & Schultes — 37 images
netted chain fern — Woodwardia areolata (L.) T.Moore — 42 images
nimblewill muhly, nimblewill — Muhlenbergia schreberi J.F.Gmelin — 6 images
ninebark — Physocarpus opulifolius (L.) Maxim. — 3 images
nodding bur marigold, nodding beggarticks — Bidens cernua L. — 32 images
nodding ladies' tresses — Spiranthes cernua (L.) L.C.Rich. — 20 images
nodding thistle, nodding plumeless thistle, musk thistle — Carduus nutans L. — 28 images
nodding trillium, nodding wakerobin — Trillium cernuum var. cernuum L. — 20 images
north wind bog orchid, northern green orchid — Platanthera aquilonis Sheviak — 4 images
northern St. John's-wort — Hypericum boreale (Britt.) Bickn. — 11 images
northern St. John's-wort submersed form — Hypericum boreale f. callitrichoides Fassett — 9 images
northern arrowwood, smooth arrowwood — Viburnum recognitum Fern. — 32 images
northern awned sedge, nodding sedge — Carex gynandra Schwein. — 8 images
northern bladderwort, flat-leaved bladderwort — Utricularia intermedia Hayne — 31 images
northern blueflag — Limniris versicolor (L.) Rodion. — 43 images
northern bog clubmoss — Lycopodiella inundata (L.) Holub — 12 images
northern bush honeysuckle — Diervilla lonicera P.Miller — 21 images
northern catalpa, western catalpa, cigar tree — Catalpa speciosa (Warder) Warder ex Engelm. — 8 images
northern clubmoss, round-branched groundpine — Dendrolycopodium dendroideum (Michx.) A.Haines — 5 images
northern coastal violet, Britton's violet — Viola brittoniana Pollard — 9 images
northern cross-leaved milkwort — Polygala cruciata ssp. aquilonia (Fern. & Schub.) A.Haines — 27 images
northern dewberry — Rubus flagellaris Willd. — 32 images
northern fimbry, autumn fimbry, slender fimbry — Fimbristylis autumnalis (L.) Roemer & Schultes — 24 images
northern horsebalm, stoneroot — Collinsonia canadensis L. — 4 images
northern ladyfern — Athyrium angustum (Willd.) C.Presl — 39 images
northern long sedge, long-culmed sedge — Carex folliculata L. — 21 images
northern long-awned woodgrass — Brachyelytrum aristosum (Michx.) Trel. — 15 images
northern maidenhair fern — Adiantum pedatum L. — 15 images
northern oak fern — Gymnocarpium dryopteris (L.) Newman — 5 images
northern prickly ash, common prickly ash — Zanthoxylum americanum P.Miller — 32 images
northern prickly rose, bristly rose — Rosa acicularis ssp. sayi (Schwein.) W.H.Lewis — 10 images
northern red oak — Quercus rubra L. — 61 images
northern slender ladies' tresses — Spiranthes lacera var. lacera (Raf.) Raf. — 5 images
northern snailseed pondweed — Potamogeton spirillus Tuckerman — 4 images
northern spicebush — Lindera benzoin (L.) Blume — 64 images
northern stalked sedge, Rudge's stalked sedge — Carex debilis var. rudgei L.H.Bailey — 9 images
northern waterweed, common waterweed — Elodea canadensis Michx. — 5 images
northern white cedar, arborvitae, arbor vitae — Thuja occidentalis L. — 15 images
northern wild senna — Senna hebecarpa (Fern.) Irwin & Barneby — 33 images
northern wood sedge, drooping woodland sedge — Carex arctata Boott ex Hooker — 3 images
northern yellow-eyed grass — Xyris montana Ries — 8 images
oak of two worlds — Quercus ×bimundorum Palmer — 4 images
oakleaf goosefoot, oak-leaved Eurasian goosefoot — Oxybasis glauca ssp. glauca (L.) S.Fuentes, Uotila & Borsch — 3 images
oakleaf hydrangea — Hydrangea quercifolia W.Bartram — 3 images
oakleaf mountain ash — Sorbus hybrida L. — 4 images
oblique-leaf silky dogwood, pale silky dogwood — Swida amomum var. schuetzeana (C.A.Mey.) A.Haines — 25 images
olive spikerush, yellow spikesedge — Eleocharis flavescens var. olivacea (Torrey) Gleason — 29 images
olive willow, rosemary willow — Salix eleagnos Scop. — 3 images
one-flowered broomrape, one-flowered cancer-root, ghost pipe — Aphyllon uniflorum (L.) Torr. & Gray — 22 images
one-row watercress, narrow-fruited watercress — Nasturtium microphyllum Boenn. ex Reichenb. — 6 images
one-seeded bur cucumber — Sicyos angulatus L. — 14 images
oneflower helianthella — Helianthella uniflora (Nutt.) Torr. & A.Gray — 5 images
open-field sedge — Carex conoidea Schkuhr ex Willd. — 5 images
orange daylily — Hemerocallis fulva (L.) L. — 30 images
orange hawkweed — Pilosella aurantiaca (L.) F.W.Schultz & Sch. Bip. — 10 images
orange jewelweed, common jewelweed, spotted touch-me-not — Impatiens capensis Meerb. — 28 images
orange mullein — Verbascum phlomoides L. — 9 images
orange-fruited horse gentian, early horse gentian, wild coffee — Triosteum aurantiacum var. aurantiacum Bicknell — 21 images
orange-fruited spikerush, elliptic spikesedge — Eleocharis elliptica var. elliptica Kunth — 21 images
orangegrass St. John's-wort, orange grass, pineweed — Hypericum gentianoides (L.) B.S.P. — 25 images
orchard apple, common apple — Malus domestica (Suckow) Borkh — 10 images
orchard grass — Dactylis glomerata L. — 7 images
oregano, sweet marjoram — Origanum vulgare L. — 3 images
osage orange — Maclura pomifera (Raf.) Schneid. — 23 images
oval-headed sedge — Carex cephalophora Muhl. ex Willd. — 16 images
oval-seeded goosefoot, glaucous pigweed — Chenopodium strictum ssp. glaucophyllum (Aellen) Aellen & Just. — 4 images
ovate-leaf violet — Viola sagittata var. ovata (Nutt.) Torrey & A.Gray — 58 images
overlooked shadbush, overlooked serviceberry — Amelanchier ×neglecta Eggleston ex G.N.Jones — 4 images
oxeye daisy — Leucanthemum vulgare Lam. — 28 images
pagoda dogwood, alternate-leaved dogwood — Swida alternifolia (L.f.) Small — 30 images
painted trillium, painted wakerobin — Trillium undulatum Willd. — 15 images
pale St. John's-wort — Hypericum ellipticum Hooker — 2 images
pale coralroot, early coralroot — Corallorhiza trifida Chatelain — 4 images
pale duckweed, Valdivia duckweed — Lemna valdiviana Phil. — 4 images
pale goat's beard — Tragopogon dubius Scop. — 22 images
pale mannagrass, Torrey's mannagrass — Torreyochloa pallida var. pallida (Torrey) Church — 11 images
pale purple coneflower, prairie coneflower — Echinacea pallida (Nutt.) Nutt. — 2 images
pale sedge — Carex pallescens L. — 20 images
pale spiked lobelia — Lobelia spicata var. spicata Lam. — 1 images
pale swallowwort — Vincetoxicum rossicum (Kleopow) Barbarich — 14 images
palmate-leaved violet, three-lobed violet, wood violet — Viola palmata L. — 12 images
panicled screwstem — Bartonia paniculata ssp. paniculata (Michx.) Muhl. — 6 images
panicled ticktrefoil — Desmodium paniculatum (L.) DC. — 11 images
paper birch — Betula papyrifera Marsh. — 49 images
paper birch × gray birch — Betula papyrifera × B. populifolia — 19 images
paper mullberry — Broussonetia papyrifera (L.) L'Hér. ex Vent. — 1 images
parasol sedge, short-beaked sand sedge — Carex umbellata Schkuhr ex Willd. non Fern. — 8 images
parrot's feather, parrotfeather watermilfoil — Myriophyllum aquaticum Camb. — 4 images
partridgeberry — Mitchella repens L. — 23 images
pasture thistle — Cirsium pumilum var. pumilum (Nutt.) Sprengel — 17 images
path rush, yard rush — Juncus tenuis Willd. — 20 images
peach — Prunus persica (L.) Batsch — 28 images
peach-leaved bellflower — Campanula persicifolia L. — 6 images
pearly everlasting — Anaphalis margaritacea (L.) Benth. & Hook.f. — 15 images
peegee hydrangea — Hydrangea paniculata Sieb. — 6 images
peppermint — Mentha ×piperita L. — 7 images
perennial blue flax — Linum perenne L. — 9 images
perennial glasswort — Salicornia ambigua Michx. — 46 images
perennial knawel — Scleranthus perennis L. — 5 images
perennial pea, broad-leaved everlasting pea, broad-leaved sweet pea — Lathyrus latifolius L. — 2 images
perennial ragweed, western ragweed — Ambrosia psilostachya DC. — 2 images
perennial ryegrass — Lolium perenne L. — 28 images
perennial saltmarsh aster, large-flowered saltmarsh aster — Symphyotrichum tenuifolium var. tenuifolium (L.) G.L.Nesom — 31 images
perennial wallrocket, cutleaf wallrocket — Diplotaxis tenuifolia (L.) DC. — 8 images
perplexing ticktrefoil, puzzling ticktrefoil, Dillen's ticktrefoil — Desmodium perplexum Schubert — 7 images
petticoat daffodil, hoop-petticoat daffodil — Narcissus bulbocodium L. — 5 images
pickerelweed — Pontederia cordata L. — 41 images
pignut hickory — Carya glabra (P.Miller) Sweet — 30 images
pigweed, redroot amaranth — Amaranthus retroflexus L. — 2 images
pin cherry, fire cherry — Prunus pensylvanica var. pensylvanica L.f. — 40 images
pin oak — Quercus palustris Muenchh. — 31 images
pinebarren golden heather — Hudsonia ericoides L. — 45 images
pinebarrens bracken fern — Pteridium aquilinum var. pseudocaudatum (Clute) A.Heller — 5 images
pinewoods coneflower — Rudbeckia bicolor Nutt. — 1 images
pink azalea — Rhododendron periclymenoides (Michx.) Shinners — 8 images
pink cuckoo bittercress, pink cuckoo flower — Cardamine pratensis L. — 22 images
pink lady's slipper — Cypripedium acaule Aiton — 17 images
pink multiflora rose — Rosa multiflora var. cathayensis Rehd. & E.H.Wilson — 13 images
pink shinleaf — Pyrola asarifolia ssp. asarifolia Michx. — 2 images
pink tickseed — Coreopsis rosea Nutt. — 41 images
pink turtlehead, Lyon's turtlehead — Chelone lyonii Pursh — 5 images
pinnate hopclover — Trifolium campestre Schreber — 6 images
pipsissewa — Chimaphila umbellata ssp. cisatlantica (Blake) Hultén — 13 images
pitch pine — Pinus rigida P.Miller — 133 images
plantain-leaved pussytoes — Antennaria plantaginifolia (L.) Richardson — 19 images
plantain-leaved sedge — Carex plantaginea Lam. — 7 images
plum-leaved crabapple — Malus prunifolia (Willd.) Borkh. — 7 images
podgrass — Scheuchzeria palustris L. — 21 images
poet's daffodil — Narcissus poeticus L. — 4 images
pointed broom sedge — Carex scoparia var. scoparia Schkuhr ex Willd — 19 images
poison hemlock — Conium maculatum L. — 20 images
poison ivy — Toxicodendron radicans (L.) Kuntze — 56 images
poison sumac — Toxicodendron vernix (L.) Kuntze — 31 images
pond water starwort, common European water starwort — Callitriche stagnalis Scop. — 36 images
ponderosa pine, bull pine, blackjack pine — Pinus ponderosa Douglas ex C.Lawson — 3 images
pondshore arrowhead, terete arrowhead — Sagittaria teres S.Watson — 60 images
pondshore dodder, hazel dodder — Cuscuta coryli Engelm. — 21 images
pondshore flatsedge, toothed flatsedge — Cyperus dentatus Torrey — 27 images
pondshore muhly, bog muhly — Muhlenbergia uniflora (Muhl.) Fern. — 27 images
pondshore nutsedge, netted nutsedge — Scleria reticularis Michx. — 39 images
pondshore panicgrass — Dichanthelium implicatum (Scribn.) Kerg. — 8 images
pondshore rush, brown-fruited rush — Juncus pelocarpus E.Meyer — 30 images
pondshore smartweed — Persicaria puritanorum (Fern.) Soják — 18 images
pondshore water horehound, sessile-leaved water horehound, clasping water horehound — Lycopus amplectens Raf. — 33 images
post oak — Quercus stellata Wangenh. — 12 images
pot marigold — Calendula officinalis L. — 1 images
poverty dropseed, poverty grass — Sporobolus vaginiflorus var. vaginiflorus (Torrey ex A.Gray) Wood — 12 images
poverty grass, churchmouse threeawn — Aristida dichotoma var. dichotoma Michx. — 29 images
poverty oatgrass — Danthonia spicata (L.) Beauv. ex Roemer & J.A.Schultes — 10 images
prairie dropwort, queen-of-the-prairie — Filipendula rubra (Hill) B.L.Robins. — 3 images
prairie ironweed — Vernonia fasciculata Michx. — 25 images
prairie needlegrass, oldfield threeawn — Aristida oligantha Michx. — 8 images
prairie pepperweed — Lepidium densiflorum var. densiflorum Schrader — 2 images
prairie sagewort — Artemisia frigida Willd. — 5 images
prairie willow, upland willow — Salix humilis Marsh. — 92 images
prickly comfrey — Symphytum asperum Lepechin — 4 images
prickly lettuce — Lactuca serriola L. — 32 images
prickly saltwort, seabeach saltwort — Salsola kali ssp. kali L. — 30 images
prickly sedge, star sedge — Carex echinata ssp. echinata Murray — 3 images
primrose-leaf violet — Viola primulifolia L. — 15 images
prince's feather amaranth — Amaranthus hypochondriacus L. — 2 images
princess tree, empress tree, foxglove tree — Paulownia tomentosa (Thunb.) Sieb. & Zucc. ex Steudel — 10 images
princess-pine, groundpine, tree clubmoss — Dendrolycopodium obscurum (L.) A.Haines — 25 images
produced loosestrife — Lysimachia ×producta (A.Gray) Fern. — 6 images
productive yellow-flowered knotweed, productive saltmarsh knotweed — Polygonum ramosissimum ssp. prolificum (Small) Costea & Tardif — 15 images
prostrate amaranth, mat amaranth, matweed, prostrate pigweed, procumbent pigweed — Amaranthus blitoides S.Watson — 9 images
prostrate juniper, creeping juniper — Juniperus horizontalis Moench — 11 images
prostrate ticktrefoil, round-leaved trailing ticktrefoil — Desmodium rotundifolium DC. — 18 images
prostrate vervain — Verbena bracteata Lag. & Rodr. — 12 images
pumpkin — Cucurbita pepo L. — 1 images
purple avens, water avens — Geum rivale L. — 8 images
purple bergamot, purple beebalm — Monarda media Willd. — 2 images
purple boxelder — Acer negundo var. violaceum (G.Kirchn.) H.Jaeg. — 23 images
purple chokeberry — Aronia floribunda (Lindl.) Spach — 52 images
purple coneflower — Echinacea purpurea (L.) Moench — 10 images
purple corydalis, spring corydalis — Corydalis solida (L.) Clairv. — 3 images
purple crownvetch — Securigera varia (L.) Lassen — 9 images
purple deadnettle, red deadnettle, red henbit — Lamium purpureum var. purpureum L. — 22 images
purple false foxglove, purple gerardia — Agalinis purpurea (L.) Pennell — 33 images
purple loosestrife — Lythrum salicaria L. — 39 images
purple medick, lucerne, blue alfalfa — Medicago sativa L. — 5 images
purple milkweed — Asclepias purpurascens L. — 5 images
purple milkwort, common milkwort, blood milkwort — Polygala sanguinea L. — 17 images
purple morning glory, common morning glory — Ipomoea purpurea (L.) Roth — 10 images
purple pitcherplant — Sarracenia purpurea L. — 38 images
purple sandgrass — Triplasis purpurea var. purpurea (Walter) Chapman — 23 images
purple-headed sneezeweed, winged sneezeweed — Helenium flexuosum Raf. — 24 images
purple-stemmed beggarticks, swamp beggarticks — Bidens connata Muhl. ex Willd. — 15 images
purpleleaf sand cherry — Prunus ×cistena (N.E.Hansen) Koehne — 1 images
purplestem angelica, great angelica, American angelica — Angelica atropurpurea L. — 4 images
purslane speedwell — Veronica peregrina ssp. peregrina L. — 7 images
quackgrass, couchgrass, creeping wild rye — Elymus repens (L.) Gould — 6 images
quagmire yellow-eyed grass, Small's yellow-eyed grass — Xyris smalliana Nash — 7 images
quillwort (either E. engelmannii or E. ×foveolata) — Isoetes engelmannii? — 10 images
rabbitfoot clover — Trifolium arvense L. — 17 images
racemed milkwort, bitter milkwort — Polygala polygama Walter — 27 images
ragged fringed orchid, green fringed bog orchid — Platanthera lacera (Michx.) G.Don — 9 images
ragged robin lychnis, ragged robin — Lychnis flos-cuculi ssp. flos-cuculi L. — 9 images
rampion bellflower, creeping bellflower — Campanula rapunculoides L. — 13 images
rape, field mustard, turnip — Brassica rapa L. — 7 images
rattail annual fescue, mousetail annual fescue — Vulpia myuros (L.) K.C.Gmelin — 11 images
rattlesnake fern — Botrypus virginianus (L.) Michx. — 13 images
rattlesnake hawkweed, rattlesnake weed — Hieracium venosum var. nudicaule (Michx.) Farv. — 13 images
rattlesnake mannagrass, rattlesnake grass — Glyceria canadensis (Michaux) Trin. — 13 images
rayless chamomile, pineapple weed — Matricaria discoidea DC. — 3 images
red baneberry — Actaea rubra (Aiton) Willd. — 25 images
red barrenwort, red bishop's hat — Epimedium ×rubrum C.Morren — 20 images
red buckeye — Aesculus pavia L. — 6 images
red campion — Silene dioica (L.) Clairville — 1 images
red chokeberry — Aronia arbutifolia (L.) Ell. — 3 images
red clover — Trifolium pratense L. — 11 images
red elderberry, red-berried elderberry — Sambucus racemosa L. — 11 images
red false bartsia — Odontites vulgaris Moench — 8 images
red fescue — Festuca rubra ssp. rubra L. — 5 images
red goosefoot, red Eurasian goosefoot, coast blite — Oxybasis rubra var. rubra (L.) S.Fuentes, Uotila & Borsch — 14 images
red horsechestnut, ruby red horse chestnut — Aesculus ×carnea J.Zeyh. — 5 images
red maple — Acer rubrum L. — 118 images
red osier, red-stemmed dogwood — Swida sericea (L.) Holub — 7 images
red pine — Pinus resinosa Ait. — 32 images
red spruce — Picea rubens Sarg. — 22 images
red trillium, purple trillium, red wakerobin — Trillium erectum L. — 31 images
red turtlehead — Chelone obliqua var. obliqua L. — 5 images
red-centered eastern prickly pear, tufted prickly pear — Opuntia cespitosa Raf. — 7 images
red-seeded dandelion — Taraxacum laevigatum (Willd.) DC. — 7 images
red-stemmed bulrush — Scirpus microcarpus J.Presl & C.Presl — 2 images
redbud — Cercis canadensis var. canadensis L. — 15 images
redleaf rose — Rosa glauca Pourret — 9 images
redpod stonecrop, queen's crown — Rhodiola rhodantha (Gray) H. Jacobsen — 1 images
redroot flatsedge — Cyperus erythrorhizos Muhl. — 8 images
redstem storksbill, redstem filaree, alfileria — Erodium cicutarium ssp. cicutarium (L.) L'Hér. ex Aiton — 8 images
redveined dock, bitter dock — Rumex obtusifolius ssp. obtusifolius L. — 28 images
reed canarygrass — Phalaris arundinacea L. — 41 images
reflexed sedge — Carex retroflexa Muhl. ex Willd. — 7 images
rhodora — Rhododendron canadense (L.) Torrey — 19 images
rhubarb — Rheum rhabarbarum L. — 5 images
ribbed sedge — Carex virescens Muhl. ex Willd. — 18 images
rice cutgrass — Leersia oryzoides (L.) Sw. — 42 images
ridged goosefoot, pygmy goosefoot — Dysphania pumilio (R.Br.) Mosyakin & Clemants — 9 images
river arrowhead — Sagittaria subulata (L.) Buch. — 3 images
river birch — Betula nigra L. — 35 images
river horsetail — Equisetum fluviatile L. — 23 images
riverbank grape, frost grape — Vitis riparia Michx. — 6 images
roadside false alyssum, flatpod alyssum — Berteroa mutabilis (Vent.) DC. — 1 images
roadside pepperweed, narrow-leaved peppergrass, stinking peppergrass, narrowleaf pepperwort — Lepidium ruderale L. — 4 images
robin's plantain fleabane — Erigeron pulchellus var. pulchellus Michx. — 11 images
rock goldentuft, basket-of-gold — Aurinia saxatilis (L.) Desv. — 7 images
rock harlequin, pale corydalis, pink corydalis — Capnoides sempervirens (L.) Borkh. — 28 images
rock muhly, awnless woodland muhly — Muhlenbergia sobolifera (Muhl. ex Willd.) Trin. — 9 images
rock spikemoss — Selaginella rupestris (L.) Spring — 21 images
rock stonecrop — Sedum reflexum L. — 7 images
rockcap fern, common rock polypody — Polypodium virginianum L. — 52 images
rocket candytuft — Iberis amara L. — 3 images
rose pogonia — Pogonia ophioglossoides (L.) Ker Gawler — 17 images
rose-gold pussy willow — Salix gracilistyla Miq. — 6 images
rosering blanket-flower, annual gaillardia — Gaillardia pulchella Foug. — 3 images
rosy Indian paintbrush — Castilleja rhexifolia Rydb. — 1 images
rosy sedge, big star sedge — Carex rosea Schkuhr ex Willd. — 11 images
rough aster — Eurybia radula (Aiton) G.L.Nesom — 13 images
rough avens, floodplain avens, herb-bennet avens — Geum laciniatum Murray — 7 images
rough bedstraw — Galium asprellum Michx. — 6 images
rough bentgrass, winter bent, hairgrass, northern ticklegrass — Agrostis scabra Willd. — 17 images
rough boneset, verbena boneset — Eupatorium pilosum Walter — 36 images
rough buttonweed — Diodia teres var. teres Walter — 18 images
rough cottongrass, few-nerved cottonsedge — Eriophorum tenellum Nutt. — 2 images
rough fleabane, lesser daisy fleabane — Erigeron strigosus var. strigosus Muhl. ex Willd. — 14 images
rough hawkweed — Hieracium scabrum Michx. — 31 images
rough oxeye, rough false sunflower — Heliopsis helianthoides var. scabra (Dunal) Fern. — 18 images
rough-leaved goldenrod — Solidago patula var. patula Muhl. ex Willd. — 4 images
rough-sheathed bluegrass, rough bluegrass — Poa trivialis ssp. trivialis L. — 5 images
round-fruited panicgrass — Dichanthelium sphaerocarpon (Ell.) Gould — 10 images
round-fruited seedbox — Ludwigia sphaerocarpa Elliott — 15 images
round-fruited short-scaled sedge — Carex deweyana var. deweyana Schwein. — 7 images
round-fruited yellowcress — Rorippa globosa (Turcz. ex Fisch. & Mey.) Hayek — 4 images
round-headed bushclover — Lespedeza capitata Michx. — 17 images
round-leaved dogwood, talus dogwood — Swida rugosa (Lam.) Rydb. — 6 images
round-leaved mint — Mentha ×rotundifolia (L.) Hudson — 2 images
round-leaved shadbush, New England serviceberry — Amelanchier sanguinea (Pursh) DC. — 4 images
round-leaved shinleaf, glossy shinleaf — Pyrola americana Sweet — 47 images
round-leaved violet — Viola rotundifolia Michx. — 13 images
roundleaf goldenrod — Solidago patula var. strictula Torrey & A.Gray — 6 images
roundleaf sundew — Drosera rotundifolia L. — 28 images
rusty and ash willow with hybrids — Salix atrocinerea/cinerea s.l. complex — 26 images
rusty or ash willow × American pussy willow — Salix atrocinerea/cinerea × S. discolor — 8 images
rusty willow — Salix atrocinerea Brotero — 120 images
rusty/ash willow × Bebb's willow — Salix atrocinerea/cinerea × S. bebbiana — 24 images
rusty/ash willow × upland willow — Salix atrocinerea/cinerea × S. humilis — 13 images
saffron crocus, autumn crocus — Crocus sativus L. — 4 images
saffron ragwort — Packera crocata (Rydb.) W.A. Weber & Á. Löve — 1 images
sagebrush — Artemisia tridentata Nutt. — 9 images
sago pondweed, sago false pondweed — Stuckenia pectinata (L.) Boerner — 8 images
saline spikerush, one-glumed spikesedge — Eleocharis uniglumis (Link) Schultes — 21 images
sallow sedge — Carex lurida Wahlenb. — 35 images
saltgrass, saltmarsh spikegrass — Distichlis spicata (L.) Greene — 16 images
saltmarsh arrowgrass — Triglochin maritima L. — 25 images
saltmarsh bulrush, saltmarsh tuber blrush — Bolboschoenus robustus (Pursh) Soják — 21 images
saltmarsh eastern wild rye — Elymus virginicus var. halophilus (Bicknell) Wieg. — 18 images
saltmarsh false foxglove, seaside gerardia — Agalinis maritima ssp. maritima (Raf.) Raf. — 18 images
saltmarsh fleabane, sweet-scented camphorweed — Pluchea odorata var. succulenta (Fern.) Cronq. — 22 images
saltmarsh plantain, many-seeded plantain — Plantago intermedia DC. — 17 images
saltmarsh rush — Juncus gerardii Loisel. — 22 images
saltmarsh sand spurry — Spergularia marina (L.) Griseb. — 16 images
saltmarsh sea blite, herbaceous sea blite — Suaeda maritima ssp. maritima (L.) Dumort. — 25 images
saltmarsh sedge, chaffy sedge — Carex paleacea Schreber ex Wahlenb. — 7 images
saltmarsh silverweed, Egede's silverweed — Argentina egedei (Wormsk. ex Hornem.) Rydb. — 11 images
saltmarsh spikerush, beaked spikesedge — Eleocharis rostellata (Torrey) Torrey — 20 images
saltmarsh straw sedge — Carex hormathodes Fernald — 17 images
saltmarsh threesquare, Olney's threesquare, chairmaker's bulrush — Schoenoplectus americanus (Pers.) Volk. ex Schinz & R.Keller — 9 images
saltmeadow cordgrass, salthay — Spartina patens var. patens (Aiton) Muhl. — 23 images
saltwater cordgrass, smooth cordgrass — Spartina alterniflora Loisel — 32 images
sand beadgrass — Paspalum setaceum var. psammophilum (Nash) D.Banks — 12 images
sand cherry, sandbar cherry — Prunus pumila var. depressa (Pursh) Gleason — 7 images
sand dune wallflower — Erysimum capitatum (Dougl. ex Hook.) Greene — 3 images
sand plantain — Plantago arenaria Waldst. & Kit. — 7 images
sand small-flowered bittercress — Cardamine parviflora var. arenicola (Britton) O.E.Schulz — 24 images
sandbar willow — Salix exigua ssp. exigua — 6 images
sandbar willow — Salix exigua ssp. interior (Rowlee) Cronq. — 21 images
sandplain blue-eyed grass, coastal plain blue-eyed grass — Sisyrinchium fuscatum Bicknell — 5 images
sandplain yellow flax — Linum intercursum Bicknell — 16 images
saskatoon berry, western shadbush — Amelanchier alnifolia (Nutt.) Nutt. — 3 images
sassafras — Sassafras albidum (Nutt.) Nees — 77 images
saucer magnolia, Chinese magnolia — Magnolia ×soulangeana Soul.-Bod. — 8 images
sawbrier, wild sarsaparilla, glaucous-leaved greenbrier — Smilax glauca Walter — 30 images
scarlet beebalm, crimson beebalm — Monarda didyma L. — 1 images
scarlet oak — Quercus coccinea Muenchh. — 42 images
scarlet pimpernel — Anagallis arvensis L. — 17 images
scarlet smartweed — Persicaria coccinea (Muhl. ex Willd.) Greene — 18 images
scentless mock-orange, Appalachian mock-orange — Philadelphus inodorus L. — 1 images
scratch bedstraw, cleavers — Galium aparine L. — 12 images
scrub oak, bear oak — Quercus ilicifolia Wangenh. — 94 images
sea lovage, Scotch lovage — Ligusticum scothicum ssp. scothicum L. — 4 images
sea milkwort — Lysimachia maritima (L.) Galasso, Banfi & Soldano — 9 images
seabeach dock, pale dock — Rumex pallidus Bigelow — 4 images
seabeach orache — Atriplex cristata Raf. — 11 images
seabeach quackgrass, tick quackgrass — Thinopyrum pycnanthum (Pers.) Barkworth — 5 images
seabeach sandwort — Honckenya peploides ssp. robusta (Fern.) Hultén — 25 images
seabeach sedge — Carex silicea Olney — 26 images
seamyrtle, groundseltree, saltbush, eastern false willow — Baccharis halimifolia L. — 53 images
seaside alkaligrass — Puccinellia maritima (Hudson) Parl. — 5 images
seaside angelica — Angelica lucida L. — 27 images
seaside brookweed, water pimpernel — Samolus valerandi ssp. parviflorus (Raf.) Hultén — 18 images
seaside bulrush, seaside tuber bulrush — Bolboschoenus maritimus ssp. paludosus (A.Nels.) T.Koyama — 18 images
seaside goldenrod — Solidago sempervirens ssp. sempervirens L. — 50 images
seaside knotweed — Polygonum glaucum Nutt. — 10 images
seaside orache — Atriplex littoralis L. — 8 images
seaside spurge, seaside sandmat — Euphorbia polygonifolia L. — 17 images
seaside wormwood, tall wormwood — Artemisia campestris ssp. caudata (Michx.) Hall & Clements — 19 images
seebeach needlegrass, seaside threeawn — Aristida tuberculosa Nutt. — 14 images
sensitive fern — Onoclea sensibilis L. — 38 images
sensitive partridge pea — Chamaecrista nictitans ssp. nictitans var. nictitans (L.) Moench — 8 images
serrate blackberry, southern blackberry — Rubus argutus Link — 3 images
sessile-headed blazing star, marsh blazing star — Liatris spicata var. spicata (L.) Willd. — 8 images
sessile-leaved twisted-stalk, rose twisted-stalk, rose mandarin, rosybells — Streptopus lanceolatus (Aiton) Reveal — 25 images
seven-angled pipewort, white buttons — Eriocaulon aquaticum (Hill) Druce — 44 images
seven-son flower — Heptacodium miconioides Rehder — 5 images
several-veined sweetflag, American sweetflag — Acorus americanus (Raf.) Raf. — 2 images
shagbark hickory — Carya ovata (P.Miller) K.Koch — 31 images
shaggy-stemmed dotted horsemint — Monarda punctata ssp. punctata var. villicaulis (Pennell) Palmer & Steyermark — 5 images
sharp-fruited rush — Juncus acuminatus Michx. — 8 images
sharp-lobed liverleaf, sharp-lobed liverwort — Hepatica acutiloba DC. — 18 images
sharp-scaled mannagrass — Glyceria acutiflora Torrey — 10 images
sheep dock, sheep sorrel, red sorrel — Rumex acetosella ssp. pyrenaicus (Pourr. ex Lapeyr.) Akeroyd — 25 images
sheep laurel — Kalmia angustifolia var. angustifolia L. — 49 images
sheep's bit — Jasione montana L. — 43 images
shepherd's purse — Capsella bursa-pastoris (L.) Medik. — 22 images
shingle oak — Quercus imbricaria Michx. — 3 images
shining firmoss, shining clubmoss — Huperzia lucidula (Michx.) Trev. — 14 images
shining flatsedge — Cyperus bipartitus Torrey — 12 images
shining willow — Salix lucida Muhl. — 22 images
shiny rose, New England rose — Rosa nitida Willd. — 11 images
shore horsetail — Equisetum ×litorale Kühl. ex Rupr. — 7 images
shore juniper — Juniperus conferta Parl. — 29 images
short-beaked baldsedge, short-beaked beaksedge — Rhynchospora nitens (Vahl) A.Gray — 11 images
short-beaked sedge, short fescue sedge — Carex brevior (Dewey) Mack. ex Lunell — 11 images
short-toothed mountain mint, clustered mountain mint — Pycnanthemum muticum (Michx.) Pers. — 34 images
showy aster — Eurybia spectabilis (Aiton) G.L.Nesom — 52 images
showy goldenrod — Solidago speciosa var. speciosa Nutt. — 2 images
showy lovegrass, purple lovegrass — Eragrostis spectabilis (Pursh) Steudel — 18 images
showy mountain ash — Sorbus decora (Sarg.) C.K.Schneid. — 10 images
showy ticktrefoil, Canadian ticktrefoil — Desmodium canadense (L.) DC. — 22 images
showy woodsorrel, southern woodsorrel, slender woodsorrel — Oxalis dillenii Jacq. — 32 images
shrubby St. John's-wort — Hypericum prolificum L. — 4 images
shrubby cinquefoil — Dasiphora floribunda Raf. — 13 images
shrubby rose mallow, Korean hibiscus, rose-of-Sharon — Hibiscus syriacus L. — 6 images
shrubby yellowroot — Xanthorhiza simplicissima Marsh. — 14 images
sickle-leaved golden aster — Pityopsis falcata (Pursh) Nutt. — 37 images
sicklepod rockcress — Boechera canadensis (L.) Al-Shehbaz — 19 images
sideoats grama — Bouteloua curtipendula var. curtipendula (Michx.) Torrey — 16 images
silk tree — Albizia julibrissin Durazz. — 1 images
silky dogwood — Swida amomum var. amomum (P.Miller) Small — 16 images
silky willow — Salix sericea Marsh. — 48 images
silver cinquefoil, silver-leaved cinquefoil — Potentilla argentea L. — 32 images
silver maple — Acer saccharinum L. — 42 images
silver-leaved summer grape — Vitis aestivalis var. bicolor Deam — 22 images
silverrod, white goldenrod — Solidago bicolor L. — 27 images
silvery hairgrass, common silverhair grass — Aira caryophyllea var. caryophyllea L. — 10 images
silvery sedge, silvery-flowered sedge — Carex argyrantha Tuckerman — 10 images
silvery spleenwort — Deparia acrostichoides (Sw.) M.Kato — 23 images
single-veined sweetflag — Acorus calamus L. — 18 images
six-angled stonecrop, creeping stonecrop — Sedum sexangulare L. — 4 images
six-weeks annual fescue — Vulpia octoflora var. tenella (Willd.) Fern. — 16 images
skunk cabbage — Symplocarpus foetidus (L.) Salisb. ex Nutt. — 44 images
skunk currant — Ribes glandulosum Grauer — 7 images
sleepy catchfly, sleepy campion — Silene antirrhina L. — 11 images
slender bladderwort, subulate bladderwort, zigzag bladderwort — Utricularia subulata L. — 7 images
slender blueflag — Limniris prismatica (Pursh) Rodion. — 30 images
slender bushclover — Lespedeza virginica (L.) Britton — 13 images
slender cottonweed — Froelichia gracilis (Hooker) Moq. — 25 images
slender deutzia — Deutzia gracilis Sieb. & Zucc. — 4 images
slender drooping sedge, graceful sedge — Carex gracillima Schwein. — 4 images
slender false foxglove, slender gerardia — Agalinis tenuifolia var. tenuifolia (Vahl) Raf. — 3 images
slender groundcedar, wiry groundcedar — Diphasiastrum tristachyum (Pursh) Holub — 6 images
slender knotweed, rock knotweed — Polygonum tenue Michx. — 12 images
slender leafy spurge — Euphorbia virgata Waldst. & Kit. — 13 images
slender mannagrass, Fernald's mannagrass — Torreyochloa pallida var. fernaldii (A.S.Hitchc.) Dore ex Koyama & Kawano — 17 images
slender parsleypiert — Aphanes australis Rydberg — 16 images
slender rose-gentian, slender marsh pink — Sabatia campanulata (L.) Torrey — 8 images
slender sand flatsedge, depauperated Great Plains flatsedge — Cyperus lupulinus var. macilentus (Fern.) A.Haines — 15 images
slender softstem spikerush, starved softstem spikerush — Eleocharis obtusa var. jejuna var. ellipsoidalis obtusa Eleocharis Fern. — 2 images
slender spikerush, slender spikesedge — Eleocharis tenuis var. tenuis (Willd.) Schultes — 17 images
slender stinging nettle — Urtica gracilis Aiton ssp. gracilis — 26 images
slender straw sedge, delicate quill sedge — Carex tenera Dewey — 8 images
slender three-seeded mercury — Acalypha gracilens A.Gray — 8 images
slender watermilfoil, leafless watermilfoil — Myriophyllum tenellum Bigelow — 14 images
slender willow, meadow willow — Salix petiolaris J.E.Smith — 44 images
slender wood sedge, slender-spiked woodland sedge — Carex digitalis var. digitalis Willd. — 5 images
slender woolly fruited sedge — Carex lasiocarpa ssp. americana (Fern.) D.Löve & Bernard — 29 images
slender-leaved mountain mint — Pycnanthemum tenuifolium Schrader — 21 images
slippery elm — Ulmus rubra Muhl. — 11 images
small beggarticks — Bidens discoidea (Torrey & A.Gray) Britton — 8 images
small cranberry — Vaccinium oxycoccos L. — 5 images
small enchanter's nightshade — Circaea alpina ssp. alpina L. — 2 images
small floating bladderwort — Utricularia radiata Small — 27 images
small sweetgrass, awned vernalgrass, Puel's vernalgrass — Anthoxanthum ovatum var. aristatum Pérez-Lara — 3 images
small-flowered buttercup, small-flowered crowfoot — Ranunculus micranthus Nutt. — 8 images
small-flowered daffodil — Narcissus minor L. — 6 images
small-flowered dwarf bulrush — Cyperus subsquarrosus (Muhl.) Bauters — 27 images
small-flowered evening primrose — Oenothera parviflora L. — 9 images
small-flowered false foxglove, small-flowered gerardia — Agalinis paupercula var. paupercula (A.Gray) Britton — 16 images
small-flowered rose, small-flowered sweetbriar — Rosa micrantha Borrer ex J.E.Smith — 11 images
small-fruited beadgrass, slender beadgrass — Paspalum setaceum var. setaceum Michx. — 7 images
small-leaved linden × Mongolian linden — Tilia cordata × T. mongolica — 6 images
small-leaved linden, small-leaved lime, littleleaf linden — Tilia cordata P.Miller — 16 images
small-petaled shadbush — Amelanchier micropetala (B.L.Robins) Ashe — 16 images
small-spiked American barnyard grass, small-spiked cockspur — Echinochloa muricata var. microstachya Wieg. — 6 images
small-spiked false nettle, bog hemp — Boehmeria cylindrica (L.) Sw. — 22 images
smooth alder, common alder — Alnus serrulata (Ait.) Willd. — 49 images
smooth aster — Symphyotrichum laeve var. laeve (L.) A.Löve & D.Löve — 14 images
smooth beggarticks, smooth marigold — Bidens laevis (L.) B.S.P. — 5 images
smooth black sedge — Carex nigra (L.) Reichard — 6 images
smooth crabgrass — Digitaria ischaemum (Schreb.) Schreb. ex Muhl. — 9 images
smooth false foxglove — Aureolaria flava var. flava (L.) Farw. — 14 images
smooth forked whitlow-wort, forked chickweed — Paronychia canadensis (L.) A.Wood — 11 images
smooth goldenrod, late goldenrod — Solidago gigantea Aiton — 22 images
smooth hawk's beard — Crepis capillaris (L.) Wallr. — 7 images
smooth hawkweed — Pilosella piloselloides (Vill.) Soják — 21 images
smooth hydrangea, sevenbark — Hydrangea arborescens L. — 3 images
smooth orache, Scotland orache — Atriplex glabriuscula Edmondston — 12 images
smooth oxeye, smooth false sunflower — Heliopsis helianthoides var. helianthoides (L.) Sweet — 8 images
smooth panicgrass — Dichanthelium spretum (J.A.Schultes) Freckmann — 4 images
smooth pussytoes, Parlin's pussytoes — Antennaria parlinii ssp. parlinii Fern. — 12 images
smooth rockcress — Boechera laevigata (Muhl. ex Willd.) Al-Shehbaz — 1 images
smooth rose — Rosa blanda var. blanda Aiton — 8 images
smooth sawsedge, twigsedge — Cladium mariscoides (Muhl.) Torrey — 32 images
smooth shadbush, smooth serviceberry, Allegheny serviceberry — Amelanchier laevis Wiegand — 12 images
smooth small-leaved ticktrefoil — Desmodium marilandicum (L.) DC. — 25 images
smooth spiderwort — Tradescantia ohiensis Raf. — 1 images
smooth spiderwort × Virginia spiderwort — Tradescantia ohiensis × T. virginiana — 20 images
smooth sumac — Rhus glabra L. — 16 images
smooth white oldfield aster — Symphyotrichum racemosum (Ell.) G.L.Nesom — 10 images
smooth white violet, northern white violet, small white violet — Viola pallens (Banks ex DC.) Brainerd — 8 images
smooth winterberry — Ilex laevigata (Pursh) A.Gray — 19 images
smooth witherod — Viburnum nudum var. nudum L. — 2 images
smooth yellow violet — Viola pubescens var. scabriuscula Schwein. ex Torr. & A.Gray — 23 images
smooth-sheathed sedge — Carex laevivaginata (Kükenth.) Mackenzie — 4 images
snailseed pondweed, hairlike pondweed — Potamogeton bicupulatus Fernald — 18 images
snow crocus, golden crocus — Crocus chrysanthus (Herb.) Herb. — 4 images
snow willow — Salix nivalis Hooker — 1 images
snowdrop — Galanthus nivalis ssp. nivalis L. — 8 images
soft brome, soft chess — Bromus hordeaceus ssp. hordeaceus L. — 5 images
soft wild bergamot, soft wild beebalm — Monarda fistulosa ssp. fistulosa var. mollis (L.) Benth. — 17 images
softstem bulrush — Schoenoplectus tabernaemontani (K.C.Gmelin) Palla — 20 images
softstem spikerush, blunt spikesedge — Eleocharis obtusa var. obtusa (Willd.) J.A.Schultes — 54 images
sour cherry — Prunus cerasus L. — 3 images
sourwood — Oxydendrum arboreum (L.) DC. — 7 images
southern arrowwood, veiny arrowwood — Viburnum venosum Britt. — 1 images
southern bog clubmoss — Lycopodiella appressa (Chapman) Cranfill — 21 images
southern catalpa, Indian bean tree — Catalpa bignonioides Walter — 16 images
southern dewberry, Enslen's blackberry — Rubus enslenii Tratt. — 4 images
southern groundcedar — Diphasiastrum digitatum (Dill. ex A.Br.) Holub — 26 images
southern ladyfern — Athyrium asplenioides (Michx.) Desv. — 7 images
southern long-awned woodgrass, bearded shorthusk — Brachyelytrum erectum (Schreb. ex Spreng.) Beauv. — 5 images
southern rough-stemmed goldenrod, barrens goldenrod — Solidago rugosa ssp. aspera (Aiton) Cronq. — 10 images
southern silvery bog sedge — Carex canescens ssp. disjuncta (Fern.) Toivonen — 23 images
southern wild rice — Zizania aquatica var. aquatica L. — 28 images
spearmint — Mentha spicata ssp. spicata L. — 6 images
speckled alder — Alnus incana ssp. rugosa (Du Roi) R.T.Clausen — 50 images
sphagnum goldenrod, swamp wrinkle-leaved goldenrod — Solidago aestivalis Bicknell — 25 images
spinulose wood fern — Dryopteris carthusiana (Vill.) H.P.Fuchs — 40 images
spiny bear's breech — Acanthus spinosus L. — 5 images
spiny-leaved sowthistle, spiny sowthistle — Sonchus asper (L.) Hill — 14 images
spoonleaf sundew, spatulate-leaved sundew — Drosera intermedia Hayne — 22 images
spotted Joe-Pye-weed — Eutrochium maculatum var. maculatum (L.) E.E.Lamont — 9 images
spotted St. John's-wort — Hypericum punctatum Lam. — 16 images
spotted cranesbill, wild geranium, wood geranium — Geranium maculatum L. — 26 images
spotted henbit, spotted deadnettle — Lamium maculatum L. — 7 images
spotted knapweed, bushy knapweed — Centaurea stoebe ssp. micranthos (S.G.Gmelin ex Gugler) Hayek — 94 images
spotted loosestrife, large loosestrife — Lysimachia punctata L. — 9 images
spotted pondweed — Potamogeton pulcher Tuckerman — 6 images
spotted spurge, spotted sandmat, milk purslane — Euphorbia maculata L. — 25 images
spotted water hemlock — Cicuta maculata var. maculata L. — 24 images
spreading Jacob's ladder, Greek valerian — Polemonium reptans var. reptans L. — 4 images
spreading bulrush, wood bulrush — Scirpus expansus Fern. — 4 images
spreading cotoneaster — Cotoneaster divaricatus Rehd. & E.H.Wilson — 17 images
spreading dogbane — Apocynum androsaemifolium L. — 15 images
spreading ricegrass, white-grained ricegrass — Oryzopsis asperifolia Michx. — 24 images
spreading ticktrefoil — Desmodium ×humifusum (Muhl. ex Bigelow) Beck — 3 images
spreading woodland sedge, spreading sedge — Carex laxiculmis var. laxiculmis Schwein. — 11 images
spring crocus — Crocus vernus ssp. vernus (L.) Hill — 18 images
spring vetch, tare — Vicia sativa ssp. sativa L. — 11 images
spring water starwort, vernal water starwort, narrow-fruited water starwort, spiny water starwort — Callitriche palustris L. — 3 images
spring whitlowgrass, spring whitlowmustard, longpod whitlowgrass — Draba verna L. — 43 images
spurge — Euphorbia cf. peplus — 6 images
squarepod seedbox — Ludwigia alternifolia L. — 31 images
squirrel corn — Dicentra canadensis (Goldie) Walp. — 16 images
staghorn clubmoss, running clubmoss — Lycopodium clavatum L. — 13 images
staghorn sumac — Rhus typhina L. — 32 images
stalked bulrush, stalked woolsedge, stalked woolgrass — Scirpus pedicellatus Fern. — 10 images
stalked water horehound, swamp water horehound — Lycopus rubellus Moench — 29 images
star-of-Bethlehem — Ornithogalum umbellatum L. — 25 images
starflowered crocus — Crocus ×stellaris — 3 images
starry Solomon's seal, star-like false Solomon's seal — Maianthemum stellatum (L.) Link — 30 images
starved panicgrass, slender panicgrass — Dichanthelium depauperatum (Muhl.) Gould — 3 images
steeplebush, rosy meadowsweet — Spiraea tomentosa L. — 18 images
sticky goldenrod — Solidago simplex var. simplex Kunth — 2 images
sticky nightshade — Solanum sisymbriifolium Lam. — 3 images
stiff clubmoss, bristly clubmoss — Spinulum annotinum (L.) A.Haines — 9 images
stiff marsh bedstraw, stiff three-petaled bedstraw — Galium tinctorium var. tinctorium (L.) Scop. — 35 images
stiff sedge — Carex stricta var. strictior (Dewey) Carey — 19 images
stiff-leaved sand sedge, shaved sedge — Carex tonsa var. tonsa (Fern.) Bickn. — 26 images
stinking lovegrass, stink grass — Eragrostis cilianensis (All.) Lut. ex Janchen — 12 images
stonecrop — Hylotelephium spectabile (Boreau) H. Ohba — 2 images
stout Guadalupe waternymph, stout Guadalupe naiad — Najas guadalupensis ssp. olivacea (Rosendahl & Butters) Haynes & Hellquist — 5 images
stout dotted smartweed, coarse dotted smartweed — Persicaria robustior (Small) Bicknell — 14 images
stout tall windflower, stout thimbleweed — Anemone virginiana var. virginiana L. — 12 images
straw foxglove, small yellow foxglove — Digitalis lutea L. — 5 images
straw sedge, eastern straw sedge — Carex straminea Willd. ex Schkuhr — 14 images
straw-colored flatsedge — Cyperus strigosus L. — 40 images
strict blue-eyed grass, meadow blue-eyed grass — Sisyrinchium montanum var. crebrum Fern. — 10 images
strict hairgrass, early silverhair grass — Aira praecox L. — 13 images
stringy stonecrop, running stonecrop — Sedum sarmentosum Bunge — 6 images
striped maple — Acer pensylvanicum L. — 36 images
striped pipsissewa, spotted wintergreen — Chimaphila maculata (L.) Pursh — 23 images
striped squill — Puschkinia scilloides Adams — 14 images
sugar maple — Acer saccharum var. saccharum Marsh. — 30 images
sulphur cinquefoil, rough-fruited cinquefoil — Potentilla recta L. — 14 images
summer cypress — Kochia scoparia (L.) Schrad. — 18 images
summer grape, pigeon grape — Vitis aestivalis var. aestivalis Michx. — 7 images
summer snowflake — Leucojum aestivum L. — 9 images
surface pondweed, ribbonleaf pondweed — Potamogeton epihydrus Raf. — 38 images
swamp Jack-in-the-pulpit — Arisaema stewardsonii Britton — 14 images
swamp azalea — Rhododendron viscosum (L.) Torrey — 42 images
swamp birch, fen birch — Betula pumila L. — 8 images
swamp cottonwood, swamp poplar — Populus heterophylla L. — 4 images
swamp dewberry, dwarf raspberry — Rubus pubescens Raf. — 17 images
swamp dock — Rumex verticillatus L. — 18 images
swamp goldenrod — Solidago uliginosa Nutt. — 16 images
swamp loosestrife, swamp candles — Lysimachia terrestris (L.) B.S.P. — 25 images
swamp loosestrife, waterwillow — Decodon verticillatus (L.) Ell. — 51 images
swamp mallow, swamp rose mallow — Hibiscus moscheutos ssp. moscheutos L. — 42 images
swamp rose — Rosa palustris Marsh. — 30 images
swamp small-flowered saxifrage — Micranthes pensylvanica (L.) Haw. — 13 images
swamp sweetbells — Eubotrys racemosa (L.) Nutt. — 54 images
swamp wedgescale, swamp oats — Sphenopholis pensylvanica (L.) A.S.Hitchc. — 7 images
swamp white oak — Quercus bicolor Willd. — 63 images
sweet Joe-Pye-weed — Eutrochium purpureum var. purpureum (L.) E.E.Lamont — 13 images
sweet William — Dianthus barbatus L. — 8 images
sweet alyssum — Lobularia maritima (L.) Desv. — 4 images
sweet birch, cherry birch, black birch — Betula lenta L. — 37 images
sweet cherry — Prunus avium (L.) L. — 20 images
sweet coneflower — Rudbeckia subtomentosa Pursh — 7 images
sweet everlasting, fragrant cudweed, blunt-leaved rabbit tobacco — Pseudognaphalium obtusifolium (L.) Hilliard & B.L.Burtt — 27 images
sweet gale — Myrica gale L. — 58 images
sweet mock-orange, European mock-orange — Philadelphus coronarius L. — 3 images
sweet pepperbush — Clethra alnifolia L. — 45 images
sweet pignut hickory, red hickory — Carya ovalis (Wangenh.) Sarg. — 4 images
sweet white violet, large-leaved white violet — Viola blanda var. blanda Willd. — 18 images
sweet white woodruff — Galium odoratum (L.) Scop. — 11 images
sweet wormwood, Asian annual wormwood — Artemisia annua L. — 16 images
sweetbay magnolia — Magnolia virginiana ssp. virginiana L. — 17 images
sweetbriar, sweetbrier — Rosa rubiginosa L. — 9 images
sweetfern — Comptonia peregrina (L.) Coulter — 28 images
sweetgum — Liquidambar styraciflua L. — 31 images
sweetshoot bamboo — Phyllostachys dulcis McClure — 5 images
sweetshrub — Calycanthus floridus var. glaucus (Willd.) Torrey & A.Gray — 12 images
sweetwilliam catchfly — Atocion armeria (L.) Raf. — 26 images
switch panicgrass, switchgrass — Panicum virgatum L. — 41 images
sycamore maple — Acer pseudoplatanus L. — 20 images
sycamore, western plane, American planetree — Platanus occidentalis L. — 56 images
tail-leaf willow — Salix lasiandra var. caudata (Nutt.) Sudworth — 10 images
tall beggarticks — Bidens vulgata Greene — 11 images
tall blacktip ragwort — Senecio atratus Greene — 1 images
tall boneset — Eupatorium altissimum L. — 7 images
tall bushclover, Thunberg's bushclover, shrub lespedeza — Lespedeza thunbergii (Nakai) H.Ohashi — 31 images
tall buttercup, tall crowfoot — Ranunculus acris L. — 18 images
tall cinquefoil, glandular cinquefoil — Drymocallis arguta (Pursh) Rydb. — 11 images
tall fescue, tall ryegrass — Schedonorus arundinaceus (Schreber) Dumort. — 10 images
tall flat-topped white aster — Doellingeria umbellata var. umbellata (P.Mill.) Nees — 37 images
tall goldenrod — Solidago altissima ssp. altissima L. — 18 images
tall mannagrass — Glyceria grandis var. grandis S.Watson — 2 images
tall meadowrue — Thalictrum pubescens Pursh — 27 images
tall milkweed, poke milkweed — Asclepias exaltata L. — 11 images
tall oatgrass — Arrhenatherum elatius ssp. elatius (L.) J.Presl & K.Presl — 17 images
tall rattlesnake root, slender rattlesnake root — Nabalus altissimus (L.) Hooker — 20 images
tall sunflower, giant sunflower — Helianthus giganteus L. — 7 images
tall tickseed — Coreopsis tripteris L. — 9 images
tall white aster, panicled aster — Symphyotrichum lanceolatum ssp. lanceolatum var. lanceolatum (Willd.) G.L.Nesom — 2 images
tall white beardtongue — Penstemon digitalis Nutt. ex Sims — 14 images
tall white violet, Canada violet — Viola canadensis var. canadensis L. — 24 images
tamarack, American larch — Larix laricina (DuRoi) K.Koch — 15 images
tapegrass, water celery — Vallisneria americana Michx. — 21 images
tea viburnum — Viburnum setigerum Hance — 3 images
tea-leaved willow — Salix phylicifolia L. — 1 images
ten-lobed false foxglove, sandplain false foxglove, sandplain gerardia — Agalinis decemloba (Green) Pennell — 11 images
thick-leaved wild strawberry — Fragaria virginiana ssp. virginiana Duchesne — 24 images
thick-spiked blazing star, prairie blazing star, gayfeather — Liatris pycnostachya var. pycnostachya Michx. — 4 images
thicket creeper, grape woodbine — Parthenocissus inserta (Kerner) Fritsch — 26 images
thicket shadbush, thicket serviceberry, eastern serviceberry, Canadian serviceberry, shadbush serviceberry, shadblow — Amelanchier canadensis (L.) Medik. — 62 images
thin-leaved sunflower — Helianthus decapetalus L. — 4 images
thread-leaved water crowfoot — Ranunculus trichophyllus Chaix ex Vill. — 10 images
threadleaf arrowhead, riffle arrowhead — Sagittaria filiformis J.G.Smith — 2 images
threadleaf sundew — Drosera filiformis var. filiformis Raf. — 42 images
threadstem sedge, Howe's prickly sedge — Carex atlantica ssp. capillacea (L.H.Bailey) Reznicek — 10 images
three-leaved rattlesnake root, gall-of-the-earth — Nabalus trifoliolatus Cass. — 29 images
three-lobed beggarticks, leafy-bracted beggarticks — Bidens tripartita ssp. comosa (A.Gray) A.Haines — 4 images
three-seeded bog sedge — Carex trisperma Dewey — 16 images
three-seeded bog sedge, Billings' sedge — Carex billingsii (Knight) C.D.Kirschbaum — 6 images
three-toothed cinquefoil — Sibbaldia tridentata (Aiton) Paule & Soják — 12 images
threeleaf goldthread — Coptis trifolia (L.) Salisb. — 32 images
threeway sedge — Dulichium arundinaceum (L.) Britton — 21 images
thymeleaf pinweed — Lechea minor L. — 26 images
thymeleaf sandwort — Arenaria serpyllifolia L. — 16 images
thymeleaf speedwell — Veronica serpyllifolia ssp. serpyllifolia L. — 29 images
tidal marsh amaranth, saltmarsh waterhemp, waterhemp ragweed — Amaranthus cannabinus (L.) Sauer — 14 images
tiger lily, lanceleaf lily — Lilium lancifolium Thunb. — 6 images
tiny trumpet, narrow-leaved mountain trumpet — Collomia linearis Nutt. — 4 images
tiny vetch, hairy vetch — Vicia hirsuta (L.) S.F.Gray — 3 images
toad rush — Juncus bufonius L. — 5 images
tomentose chickweed, snow-in-summer — Cerastium tomentosum L. — 8 images
toothed white-topped aster — Sericocarpus asteroides (L.) B.S.P. — 26 images
tower mustard — Turritis glabra L. — 32 images
trailing arbutus, mayflower — Epigaea repens L. — 50 images
trailing bushclover — Lespedeza procumbens Michx. — 12 images
trailing pearlwort — Sagina decumbens ssp. decumbens (Ell.) Torrey & A.Gray — 5 images
tree false spirea — Sorbaria arborea C.K.Schneid. — 7 images
tree-of-heaven — Ailanthus altissima (P.Miller) Swingle — 77 images
tricleft bedstraw, northern three-lobed bedstraw — Galium trifidum ssp. trifidum L. — 7 images
trifoliolate barren strawberry — Waldsteinia ternata Fritsch — 9 images
true forget-me-not, water forget-me-not, scorpionweed — Myosotis scorpioides L. — 12 images
trumpet creeper — Campsis radicans (L.) Seem. ex Bureau — 17 images
trumpet honeysuckle — Lonicera sempervirens var. sempervirens L. — 11 images
tubercled spikerush, long-tubercled spikesedge — Eleocharis tuberculosa (Michx.) Roemer & Schultes — 15 images
tuberous grasspink — Calopogon tuberosus var. tuberosus (L.) B.S.P. — 14 images
tuberous water horehound, northern water horehound — Lycopus uniflorus Michx. — 54 images
tuberous waterlily — Nymphaea odorata ssp. tuberosa (Paine) Wiersema & Hellquist — 14 images
tufted hairsedge, sandsedge — Bulbostylis capillaris (L.) Kunth ex C.B.Clarke — 28 images
tufted loosestrife — Lysimachia thyrsiflora L. — 9 images
tufted lovegrass — Eragrostis pectinacea var. pectinacea (Michx.) Nees ex Steud. — 24 images
tuliptree — Liriodendron tulipifera L. — 42 images
tumbleweed amaranth — Amaranthus albus L. — 3 images
tumbling hedge mustard — Sisymbrium altissimum L. — 11 images
tupelo, black gum — Nyssa sylvatica Marshall — 108 images
tussock sedge — Carex stricta Lam. — 21 images
twin-scaped bladderwort — Utricularia geminiscapa Benj. — 24 images
twinberry honeysuckle — Lonicera involucrata (Richardson) Banks ex Spreng. — 3 images
twisted drooping sedge — Carex prasina Wahlenb. — 7 images
twisted sedge, riverside sedge — Carex torta Boott ex Tuckerman — 9 images
twisted yellow-eyed grass — Xyris torta Small — 30 images
twistwood, wayfaring tree — Viburnum lantana L. — 7 images
two-colored bushclover — Lespedeza bicolor Turcz. — 17 images
twoleaf miterwort, twoleaf mitrewort, coolwort, Bishop's cap — Mitella diphylla L. — 12 images
umbrella flatsedge, red-edged flatsedge — Cyperus diandrus Torrey — 13 images
umbrella magnolia — Magnolia tripetala (L.) L. — 31 images
unidentified exotic birch — Betula sp. — 10 images
unidentified pearlwort — Sagina sp. — 3 images
unknown hybrid — Lilium sp. — 2 images
upland bentgrass, upland bent, autumn bent — Agrostis perennans (Walter) Tuckerman — 8 images
upland boneset — Eupatorium sessilifolium L. — 5 images
upright white bedstraw — Galium album L. — 2 images
upright yellow rocket, upright wintercress — Barbarea stricta Andrz. — 3 images
vanilla sweetgrass, Indian sweetgrass — Anthoxanthum nitens ssp. nitens (Weber) Y.Schouten & Veldkamp — 11 images
variable sedge — Carex polymorpha Muhl. — 8 images
variable watermilfoil — Myriophyllum heterophyllum Michx. — 12 images
variegated entireleaf willow, dappled willow — Salix integra 'Hakuro Nishiki' — 2 images
variegated scouring rush — Equisetum variegatum ssp. variegatum Schleicher ex Weber & Mohr — 5 images
variegated yellow archangel — Lamium argentatum (Smejkal) Henker ex G.H.Loos — 33 images
velvet-fruited sedge — Carex vestita Willd. — 29 images
velvet-leaved blueberry, sourtop blueberry — Vaccinium myrtilloides Michx. — 21 images
velvetleaf Indian mallow, velvetleaf, velvet plant, velvetweed, crownweed, buttonweed, Chinese jute — Abutilon theophrasti Medik. — 8 images
vernal sedge — Carex caryophyllea Lat. — 14 images
vervain mallow — Malva alcea L. — 4 images
violet bushclover — Lespedeza frutescens (L.) Hornem. — 4 images
violet crabgrass — Digitaria violascens Link — 15 images
violet woodsorrel — Oxalis violacea L. — 4 images
violet-flowered petunia — Petunia integrifolia (Hook.) Schinz & Thellung — 5 images
virginsbower — Clematis virginiana L. — 16 images
viscid nightshade, groundcherry nightshade, hoe nightshade — Solanum physalifolium var. nitidibaccatum (Bitter) Edmonds — 3 images
wall lettuce — Mycelis muralis (L.) Dumort. — 8 images
wand bushclover — Lespedeza violacea (L.) Pers. — 17 images
warty panicgrass — Panicum verrucosum Muhl. — 24 images
water arum, wild calla — Calla palustris L. — 19 images
water bulrush, floating bulrush — Schoenoplectus subterminalis (Torrey) Soják — 29 images
water chestnut, water caltrop — Trapa natans L. — 18 images
water lettuce — Pistia stratiotes L. — 3 images
water lobelia — Lobelia dortmanna L. — 28 images
water parsnip — Sium suave Walter — 19 images
watermelon — Citrullus lanatus (Thunb.) Matsumura & Nakai — 2 images
waterpepper smartweed, water pepper — Persicaria hydropiper (L.) Opiz — 6 images
watershield — Brasenia schreberi J.F.Gmelin — 42 images
wavy hairgrass, crinkled hairgrass — Deschampsia flexuosa (L.) Trin. — 15 images
wavy waternymph, common naiad — Najas flexilis (Willd.) Rostk. & Schmidt — 16 images
wax currant, squaw currant — Ribes cereum Douglas — 2 images
waxy-leaved meadowrue, skunk meadowrue — Thalictrum revolutum DC. — 26 images
weeping forsythia, golden bell — Forsythia suspensa (Thunb.) Vahl — 13 images
weeping lovegrass — Eragrostis curvula (Schrader) Nees — 16 images
western Indian paintbrush — Castilleja occidentalis Torr. — 2 images
western bleeding heart, Pacific bleeding heart — Dicentra formosa ssp. formosa (Andr.) Walp. — 3 images
western false Solomon's seal — Maianthemum amplexicaule (Nutt.) W.A.Weber — 3 images
western maidenhair spleenwort — Asplenium quadrivalens (D.E.Meyer) Landolt 2010 — 2 images
western snowberry — Symphoricarpos albus ssp. laevigatus (Fern.) Hultén — 6 images
western thimbleberry — Rubus parviflorus L. — 4 images
whip hawkweed — Pilosella flagellaris (Willd.) P.D.Sell & C.West — 6 images
white ash — Fraxinus americana L. — 72 images
white avens — Geum canadense var. canadense Jacq. — 47 images
white baneberry, doll's eyes — Actaea pachypoda Ell. — 25 images
white beakrush, white beaksedge — Rhynchospora alba (L.) Vahl — 30 images
white bear sedge — Carex albursina Sheldon — 1 images
white campion, evening lychnis — Silene latifolia ssp. alba (P.Mill.) Greuter & Burdet — 24 images
white clover — Trifolium repens L. — 18 images
white colic root, unicorn root, white stargrass, crowcorn — Aletris farinosa L. — 9 images
white crocus — Crocus albiflorus Kit. ex Schult. — 4 images
white cutgrass — Leersia virginica Willd. — 9 images
white dock, willowleaf dock — Rumex triangulivalvis (Danser) Rech.f. — 4 images
white fir, Colorado fir — Abies concolor (Gordon & Glend.) Lindley ex Hildebrand — 10 images
white forsythia — Abeliophyllum distichum Nakai — 7 images
white fringed orchid, white fringed bog orchid — Platanthera blephariglottis var. blephariglottis (Willd.) Lindl. — 14 images
white fringetree, Virginia fringetree — Chionanthus virginicus L. — 14 images
white goosefoot, lamb's quarters — Chenopodium album L. — 31 images
white mulberry — Morus alba L. — 18 images
white mullein — Verbascum lychnitis L. — 9 images
white oldfield aster, hairy aster, awl aster — Symphyotrichum pilosum var. pilosum (Willd.) G.L.Nesom — 49 images
white pine — Pinus strobus L. — 90 images
white poplar — Populus alba L. — 18 images
white snakeroot — Ageratina altissima var. altissima (L.) King & H.E.Robinson — 20 images
white spruce — Picea glauca (Moench) Voss — 32 images
white stonecrop — Sedum album L. — 10 images
white swallowwort — Vincetoxicum hirundinaria Medik. — 5 images
white sweetclover — Melilotus albus Medik. — 15 images
white thornapple, jimsonweed, Jamestown weed — Datura stramonium L. — 42 images
white trillium, white wakerobin — Trillium grandiflorum (Michx.) Salisb. — 3 images
white turtlehead — Chelone glabra L. — 26 images
white vervain — Verbena urticifolia L. — 18 images
white willow — Salix alba L. — 12 images
white wood aster — Eurybia divaricata (L.) G.L.Nesom — 15 images
white-flowered golden hedgehyssop — Gratiola aurea f. leucantha Bartlett — 24 images
whorled chickweed, green carpetweed — Mollugo verticillata L. — 29 images
whorled loosestrife — Lysimachia quadrifolia L. — 19 images
whorled marsh pennywort, saltpond pennywort — Hydrocotyle verticillata Thunb. — 3 images
whorled milkweed — Asclepias verticillata L. — 8 images
whorled milkwort — Polygala verticillata L. — 14 images
whorled tickseed — Coreopsis verticillata L. — 6 images
whorled white bedstraw, field madder — Galium mollugo L. — 27 images
whorled wood aster — Oclemena acuminata (Michx.) G.L.Nesom — 35 images
wig knapweed — Centaurea phrygia L. — 8 images
wild European tulip — Tulipa sylvestris L. — 6 images
wild basil — Clinopodium vulgare L. — 23 images
wild carrot, Queen Anne's lace — Daucus carota L. — 17 images
wild chives — Allium schoenoprasum L. — 5 images
wild columbine, red columbine — Aquilegia canadensis L. — 43 images
wild cucumber, prickly cucumber — Echinocystis lobata (Michx.) Torrey & A.Gray — 13 images
wild daffodil, trumpet daffodil — Narcissus pseudonarcissus L. — 10 images
wild garlic, meadow garlic — Allium canadense var. canadense L. — 10 images
wild goose plum — Prunus hortulana Bailey — 2 images
wild honeysuckle — Lonicera dioica L. — 4 images
wild leek — Allium tricoccum var. tricoccum Aiton — 10 images
wild licorice, forest bedstraw — Galium circaezans var. circaezans Michx. — 12 images
wild licorice, lanceleaf bedstraw — Galium lanceolatum Torrey — 14 images
wild lupine, sundial lupine — Lupinus perennis ssp. perennis L. — 23 images
wild marjoram — Origanum majorana L. — 4 images
wild parsnip — Pastinaca sativa L. — 22 images
wild radish — Raphanus raphanistrum L. — 27 images
wild raisin viburnum, witherod — Viburnum nudum var. cassinoides (L.) Torrey & A.Gray — 65 images
wild red raspberry — Rubus idaeus ssp. strigosus (Michx.) Focke — 6 images
wild sarsaparilla — Aralia nudicaulis L. — 48 images
willowleaf cotoneaster — Cotoneaster salicifolius Franch. — 4 images
wine raspberry, wineberry — Rubus phoenicolasius Maxim. — 10 images
winged bindweed, crested bindweed — Fallopia cristata (Engelm. & A.Gray) Holub — 10 images
winged spindletree, Oriental spindletree — Euonymus alatus (Thunb.) Sieb. — 37 images
winged tobacco, jasmine tobacco — Nicotiana alata Link & Otto — 2 images
wingstem crownbeard — Verbesina alternifolia (L.) Britton — 10 images
winter aconite — Eranthis hyemalis (L.) Salisb. — 11 images
winter creeper — Euonymus fortunei (Turcz.) Hand.-Mazz. — 33 images
winter heath, spring heath — Erica carnea L. — 4 images
winter jasmine — Jasminum nudiflorum Lindl. — 1 images
wintergreen, checkerberry, eastern teaberry — Gaultheria procumbens L. — 48 images
wirestem muhly — Muhlenbergia frondosa (Poir.) Fern. — 11 images
witchgrass, witch panicgrass — Panicum capillare ssp. capillare L. — 16 images
wolfberry — Symphoricarpos occidentalis Hooker — 9 images
wood avens, city avens, town avens — Geum urbanum L. — 9 images
wood betony, Canadian lousewort, common lousewort — Pedicularis canadensis ssp. canadensis L. — 15 images
wood lily — Lilium philadelphicum L. — 50 images
wood windflower — Anemone quinquefolia var. quinquefolia L. — 42 images
woodbine, European common honeysuckle — Lonicera periclymenum L. — 3 images
woodland Jack-in-the-pulpit — Arisaema triphyllum (L.) Schott ex Schott & Endl. — 36 images
woodland bluegrass — Poa nemoralis L. — 5 images
woodland brome, Canada brome, hairy wood brome — Bromus pubescens Muhl. ex Willd. — 6 images
woodland clubsedge, woodland bulrush — Trichophorum planifolium (Spreng.) Palla — 20 images
woodland crocus, early or snow crocus — Crocus tommasinianus Herb. — 11 images
woodland figwort, wood figwort — Scrophularia nodosa L. — 7 images
woodland hawkweed, panicled hawkweed — Hieracium paniculatum L. — 16 images
woodland horsetail — Equisetum sylvaticum L. — 10 images
woodland rush — Juncus subcaudatus (Engelm.) Coville — 5 images
woodland sage — Salvia nemorosa L. — 2 images
woodland strawberry — Fragaria vesca ssp. americana (Porter) Staudt — 9 images
woodland sunflower, rough woodland sunflower — Helianthus divaricatus L. — 18 images
woolly beach heather — Hudsonia tomentosa Nutt. — 34 images
woolly foxglove, Grecian foxglove — Digitalis lanata Ehrh. — 2 images
woolly mint — Mentha ×villosa Hudson — 13 images
woolly pipevine, woolly Dutchman's pipe — Isotrema tomentosum (Sims) Huber — 4 images
wormseed wallflower, wormseed mustard — Erysimum cheiranthoides L. — 15 images
wreath goldenrod, bluestem goldenrod, axillary goldenrod — Solidago caesia var. caesia L. — 19 images
yamleaf virginsbower — Clematis terniflora DC. — 22 images
yellow bedstraw — Galium verum ssp. verum L. — 6 images
yellow birch — Betula alleghaniensis Britton — 57 images
yellow buckeye — Aesculus flava Sol. — 2 images
yellow catalpa, Chinese catalpa — Catalpa ovata G.Don — 6 images
yellow daylily — Hemerocallis lilioasphodelus L. — 1 images
yellow flatsedge, nut flatsedge — Cyperus esculentus var. leptostachyus Boeck. — 14 images
yellow floating heart — Nymphoides peltata Gmelin (Kuntze) — 17 images
yellow foxglove — Digitalis grandiflora P.Mill. — 3 images
yellow foxtail — Setaria pumila ssp. pumila (Poir.) Roemer & J.A.Schultes — 35 images
yellow goat's beard, meadow goat's beard — Tragopogon pratensis L. — 2 images
yellow henbit, yellow archangel — Lamium galeobdolon ssp. galeobdolon (L.) L. — 1 images
yellow hornpoppy, sea poppy — Glaucium flavum Crantz — 18 images
yellow iris — Limniris pseudacorus Fuss — 27 images
yellow ladies' tresses — Spiranthes ochroleuca (Rydb.) Rydb. — 6 images
yellow oak, chinquapin oak — Quercus muehlenbergii Engelm. — 1 images
yellow pinesap, false beechdrops — Hypopitys monotropa Crantz — 17 images
yellow screwstem, Virginia screwstem — Bartonia virginica (L.) B.S.P. — 24 images
yellow sedge, yellow-green sedge — Carex flava L. — 7 images
yellow stargrass, common stargrass — Hypoxis hirsuta (L.) Cov. — 22 images
yellow sweetclover — Melilotus officinalis (L.) Lam. — 9 images
yellow thistle — Cirsium horridulum var. horridulum Michx. — 19 images
yellow toadflax, common Eurasian toadflax, butter-and-eggs — Linaria vulgaris P.Miller — 16 images
yellow water buttercup, greater yellow water crowfoot — Ranunculus flabellaris Raf. — 11 images
yellow waterlily, spatterdock — Nuphar variegata Durand ex Clinton — 41 images
yellow wild indigo, horsefly weed — Baptisia tinctoria (L.) R.Br. ex Ait.f. — 19 images
yellow wild lettuce, Canada lettuce, tall lettuce — Lactuca canadensis L. — 50 images
yellow wood windflower, European buttercup anemone — Anemone ranunculoides L. — 15 images
yellow-and-blue forget-me-not, changing forget-me-not — Myosotis discolor Pers. — 2 images
yellow-fruited sedge — Carex annectens (Bickn.) Bickn. — 18 images
yellow-grooved bamboo — Phyllostachys aureosulcata McClure — 9 images
yellow-seeded false pimpernel — Lindernia dubia var. anagallidea (Michx.) Cooperrider — 31 images
yellow-seeded riverside lindernia — Lindernia dubia var. dubia (L.) Pennell — 5 images
yellowwood — Cladrastis kentukea (Dum.Cours.) Rudd — 14 images
zigzag goldenrod — Solidago flexicaulis L. — 9 images
zinnia — Zinnia elegans Jacq. — 4 images
Generated Oct. 6, 2024, 1:22 p.m.