Index of Common Names

Acadian quillwort — Isoetes acadiensis Kott — 6 images
Allegheny blackberry, common blackberry — Rubus allegheniensis Porter — 34 images
Allegheny buttercup — Ranunculus allegheniensis Britton — 12 images
Allegheny plum — Prunus alleghaniensis Porter — 3 images
Allegheny spurge — Pachysandra procumbens Michx. — 12 images
American beech — Fagus grandifolia Ehrh. — 75 images
American bittersweet — Celastrus scandens L. — 3 images
American black currant — Ribes americanum P.Miller — 4 images
American black elderberry, American black-berried elderberry — Sambucus canadensis (L.) R.Bolli — 28 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 elm, white elm — Ulmus americana L. — 31 images
American field chickweed — Cerastium strictum L. — 1 images
American field mint — Mentha canadensis L. — 11 images
American figwort — Scrophularia lanceolata Pursh — 20 images
American germander, saltmarsh germander — Teucrium canadense L. var. canadense — 22 images
American great willowherb, American fireweed — Chamaenerion angustifolium (Mosquin) Hoch — 9 images
American hazelnut — Corylus americana Walt. — 33 images
American heal-all, American self-heal — Prunella vulgaris ssp. lanceolata (W.Barton) Hultén — 7 images
American highbush cranberry — Viburnum opulus var. americanum (Marsh.) Clausen — 6 images
American holly — Ilex opaca Ait. — 62 images
American honewort — Cryptotaenia canadensis (L.) DC. — 5 images
American lotus — Nelumbo lutea Willd. — 4 images
American marsh fern — Thelypteris palustris ssp. pubescens (Lawson) Fraser-Jenkins — 33 images
American morning glory — Calystegia sepium ssp. americana (Sims) Brummitt — 11 images
American mountain ash — Sorbus americana Marsh. — 7 images
American ostrich fern — Matteuccia struthiopteris ssp. pensylvanica (Willd.) A.Löve & D.Löve — 28 images
American papaw, common pawpaw — Asimina triloba (L.) Dunal — 2 images
American pennyroyal — Hedeoma pulegioides (L.) Pers. — 7 images
American plantain, Rugel's plantain, blackseed plantain — Plantago rugelii Dcne. — 18 images
American pokeweed, poke sallet — Phytolacca americana L. var. americana — 21 images
American royal fern — Osmunda regalis ssp. spectabilis (Willd.) A.Löve & D.Löve — 44 images
American scouring rush — Equisetum hyemale ssp. affine (Engelm.) Calder & Taylor — 23 images
American sea blite — Suaeda calceoliformis (Hooker) Moq. — 8 images
American smoketree — Cotinus obovatus Raf. — 5 images
American spikenard — Aralia racemosa L. — 18 images
American starflower — Trientalis borealis (Raf.) U.Manns & Anderb. — 16 images
American white waterlily, fragrant waterlily — Nymphaea odorata Aiton ssp. odorata — 28 images
American witch-hazel, common witch-hazel — Hamamelis virginiana L. — 47 images
Amur corktree — Phellodendron amurense Rupr. — 41 images
Amur honeysuckle — Lonicera maackii (Rupr.) Maxim. — 35 images
Amur maple — Acer ginnala Maxim. — 7 images
Amur peppervine, porcelain berry — Ampelopsis brevipedunculata C.L.Li — 23 images
Amur tree lilac — Syringa reticulata (Blume) Hara — 4 images
Andrews' bottle gentian — Gentiana andrewsii Griseb. — 26 images
Ankara crocus — Crocus ancyrensis (Herb.) Maw — 2 images
Appalachian mock-orange — Philadelphus inodorus L. — 1 images
Appalachian rock polypody — Polypodium appalachianum Haufler & Windham — 19 images
Appalachian sedge, spreading star sedge — Carex appalachica Webber & Ball — 6 images
Arkansas bluestar — Amsonia hubrichtii Woodson — 13 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
Atlantic Joe-Pye-weed — Eupatorium dubium (Willd. ex Poir.) E.E.Lamont — 30 images
Atlantic grape hyacinth — Muscari neglectum Guss. ex Ten. — 13 images
Atlantic ivy — Hedera hibernica (G.Kirchn.) Bean — 19 images
Atlantic white cedar — Chamaecyparis thyoides (L.) B.S.P. — 85 images
Austrian pine — Pinus nigra Arnott — 12 images
Aztec marigold — Tagetes erecta L. — 1 images
Babylon willow hybrid complex — Salix babylonica hybrids — 18 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. — 40 images
Berchtold's pondweed, slender tiny pondweed — Potamogeton berchtoldii Fieber — 11 images
Bissell's violet (marsh blue × common blue) — Viola ×bissellii House — 16 images
Blake's aster — Aster ×blakei (Porter) G.L.Nesom — 2 images
Bohemian knotweed — Polygonum ×bohemica (Chrtek & Chrtková) J.P.Bailey — 37 images
Boott's wood fern — Dryopteris ×boottii (Tuckerman) Underw. — 14 images
Brazilian watermeal — Wolffia brasiliensis Weddell — 4 images
Brazilian waterweed, Brazilian elodea — Egeria densa Planchon — 4 images
Britton's violet × comb violet — Viola brittoniana × V. pectinata — 5 images
Buffalo nut, oil nut — Pyrularia pubera Michaux — 33 images
Buxbaum's sedge — Carex buxbaumii Wahlenb. — 6 images
California privet — Ligustrum ovalifolium Hassk. — 16 images
Californian false hellebore — Veratrum californicum Durand var. californicum — 1 images
Callery pear, Bradford pear — Pyrus calleryana Dcne. — 14 images
Canada anemone — Anemone canadensis L. — 2 images
Canada bluejoint, reedgrass — Calamagrostis canadensis (Michaux) Beauv. var. canadensis — 50 images
Canada goldenrod — Solidago canadensis L. var. canadensis — 13 images
Canada hawkweed — Hieracium kalmii L. — 5 images
Canada lily, wild yellow lily — Lilium canadense L. — 19 images
Canada mayflower — Maianthemum canadense Desf. — 17 images
Canada milkvetch, Canadian milkvetch — Astragalus canadensis L. — 2 images
Canada plum — Prunus nigra Aiton — 4 images
Canada thistle — Cirsium arvense (L.) Scop. — 13 images
Canada wild rye — Elymus canadensis L. — 5 images
Canada yew — Taxus canadensis Marsh. var. canadensis — 25 images
Canadian St. John's-wort — Hypericum canadense L. — 14 images
Canadian burnet, American burnet — Sanguisorba canadensis L. — 5 images
Canadian wild ginger — Asarum canadense L. — 19 images
Carey's smartweed — Polygonum careyi (Olney) Greene — 39 images
Carolina cranesbill, Carolina geranium — Geranium carolinianum L. — 31 images
Carolina fanwort — Cabomba caroliniana A.Gray — 50 images
Carolina rhododendron — Rhododendron carolinianum Rehd. — 9 images
Carolina rose, pasture rose — Rosa carolina L. ssp. carolina — 12 images
Carolina silverbell — Halesia carolina L. — 8 images
Catawba rhododendron — Rhododendron catawbiense Michaux — 19 images
Caucasian ivy — Hedera colchica K.Koch — 5 images
Chapman's bluegrass — Poa chapmaniana Scribner — 4 images
Chinese bushclover, sericea lespedeza — 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 lantern plant — Physalis alkekengi L. — 6 images
Chinese plumegrass — Miscanthus sinensis Andersson — 39 images
Chinese privet — Ligustrum sinense Lour. — 5 images
Chinese smartweed, Oriental lady's thumb, bristly lady's thumb — Polygonum longisetum (Bruijn) Kitagawa — 20 images
Chinese wisteria — Wisteria sinensis (Sims) DC. — 32 images
Christmas fern — Polystichum acrostichoides (Michaux) Schott — 31 images
Clinton's wood fern — Dryopteris clintoniana (D.C.Eaton ex A.Gray) Dowell — 6 images
Cooper's hardy iceplant, trailing iceplant — Delosperma cooperi (Hook.f.) L.Bolus — 17 images
Crawford's sedge — Carex crawfordii Fernald — 8 images
Cretian viper's bugloss — Echium creticum L. — 13 images
Debtford pink — Dianthus armeria L. — 13 images
Douglas fir — Pseudotsuga menziesii (Mirbel) Franco — 36 images
Drummond's rock-cress — Arabis drummondii (Graham) Al-Shehbaz — 19 images
Dutchman's breeches — Dicentra cucullaria (L.) Bernh. — 6 images
Elliott's goldenrod — Solidago latissimifolia P.Miller — 28 images
Emmons' sedge — Carex albicans var. emmonsii (Dewey ex Torrey) J.Rettig — 10 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 elm — Ulmus procera Salisb. — 2 images
English hawthorn — Crataegus monogyna Jacq. — 10 images
English ivy, European ivy — Hedera helix L. — 22 images
English oak — Quercus robur L. — 20 images
English violet — Viola odorata var. dumetorum (Jord.) Rouy & Fouc. — 32 images
English yew — Taxus baccata L. — 6 images
Eurasian heal-all, common self-heal — Prunella vulgaris ssp. vulgaris L. ssp. vulgaris — 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
Eurasian yellow rattle — Rhinanthus minor L. ssp. minor — 12 images
European beech — Fagus sylvatica L. — 24 images
European black alder — Alnus glutinosa (L.) Gaertner — 27 images
European black nightshade — Solanum nigrum L. — 4 images
European broad-leaved thyme, lemon thyme — Thymus pulegioides L. — 11 images
European cocklebur, European clotbur — Xanthium strumarium L. var. strumarium — 8 images
European common box, European boxwood — Buxus sempervirens L. — 4 images
European common flax — Linum usitatissimum L. — 3 images
European common hawkweed — Hieracium lachenalii K.C.Gmelin — 7 images
European common privet — Ligustrum vulgare L. — 13 images
European downy birch — Betula pubescens Ehrh. — 6 images
European forest blackberry, European dewberry — Rubus caesius L. — 9 images
European gooseberry — Ribes uva-crispa var. sativum DC. — 3 images
European grape — Vitis vinifera L. — 12 images
European highbush cranberry, guelder rose — Viburnum opulus L. ssp. opulus — 30 images
European hyssop, medicinal hyssop — Hyssopus officinalis L. — 3 images
European larch — Larix decidua P.Miller — 18 images
European mock-orange — Philadelphus coronarius L. — 3 images
European morning glory, European hedge bindweed — Calystegia sepium (L.) R.Br. ssp. sepium — 10 images
European mountain ash — Sorbus aucuparia L. — 39 images
European raspberry — Rubus idaeus L. ssp. idaeus — 4 images
European silver birch × American gray birch — Betula pendula × B. populifolia — 4 images
European spindletree — Euonymus europaeus L. — 25 images
European star sedge — Carex spicata Hudson — 9 images
European strawberry — Fragaria vesca L. ssp. vesca — 3 images
European water clover, four-leaf clover, pepperwort — Marsilea quadrifolia L. — 7 images
European water horehound — Lycopus europaeus L. — 1 images
European wild garlic — Allium oleraceum L. — 7 images
European windflower — Anemone nemorosa L. — 5 images
Faxon's oak — Quercus ×faxonii Trel. — 2 images
February daphne, mezereon, mezereum — Daphne mezereum L. — 4 images
Forbes' glory-of-the-snow — Chionodoxa forbesii Baker — 11 images
French rose — Rosa gallica L. — 11 images
Fuji cherry — Prunus incisa Thunb. — 10 images
Geneva bugleweed, standing bugle — Ajuga genevensis L. — 5 images
German chamomile, Hungarian chamomile, scented mayweed — Matricaria chamomilla L. — 5 images
Gilman's clubmoss, southern bog clubmoss × northern bog clubmoss — Lycopodiella ×gilmanii A.Haines — 6 images
Gray's flatsedge — Cyperus grayi Torrey — 32 images
Greek valerian — Polemonium reptans L. var. reptans — 4 images
Greene's pussytoes — Antennaria neodioica (Greene) Bayer — 10 images
Greene's rush — Juncus greenei Oakes & Tuckerman — 17 images
Gronovius' hawkweed — Hieracium gronovii L. — 25 images
Hayden's sedge — Carex haydenii Dewey — 15 images
Hickey's clubmoss — Lycopodium hickeyi (W.H.Wagner, Beitel & Moran) A.Haines — 7 images
Himalayan knotweed, garden smartweed — Polygonum polystachyum Greuter & Burdet — 14 images
Indian aster — Aster (s. str.) indicus (L.) All. — 25 images
Indian cucumber-root, Indian cucumber — Medeola virginiana L. — 37 images
Indian grass — Sorghastrum nutans (L.) Nash — 22 images
Indian hemp — Apocynum cannabinum L. — 14 images
Indian lovegrass, soft lovegrass — Eragrostis pilosa (L.) Beauv. var. pilosa — 16 images
Indian pipe — Monotropa uniflora L. — 30 images
Indian strawberry — Duchesnea indica (Andr.) Focke — 16 images
Indian sweetgrass, sweet grass — Hierochloe odorata (Weber) Y.Schouten & Veldkamp ssp. nitens — 11 images
Indian tobacco — Lobelia inflata L. — 30 images
Italian ryegrass — Lolium multiflorum Lam. — 4 images
Jack pine — Pinus banksiana Lamb. — 12 images
Japanese andromeda — Pieris japonica (Thunb.) D.Don ex G.Don — 20 images
Japanese angelica tree — Aralia elata (Miq.) Seem. — 28 images
Japanese barberry — Berberis thunbergii DC. — 36 images
Japanese black pine — Pinus thunbergii Parl. — 23 images
Japanese callicarpa — Callicarpa japonica Thunb. — 10 images
Japanese cherry — Prunus serrulata Lindley — 8 images
Japanese crabapple, toringo crabapple, 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 — 13 images
Japanese creeper, Japanese ivy, grape ivy, Boston ivy — Parthenocissus tricuspidata (Sieb. & Zucc.) Planchon — 10 images
Japanese flowering crabapple — Malus floribunda Sieb. ex Van Houtte — 20 images
Japanese flowering quince — Chaenomeles speciosa (Sweet) Nakai — 15 images
Japanese holly — Ilex crenata Thunb. — 13 images
Japanese honewort — Cryptotaenia japonica Hassk. — 4 images
Japanese honeysuckle — Lonicera japonica Thunb. — 38 images
Japanese hop — Humulus japonicus Sieb. & Zucc. — 5 images
Japanese knotweed — Polygonum cuspidatum (Houtt.) R.Decr. — 37 images
Japanese maple — Acer palmatum Thunb. — 8 images
Japanese millet — Echinochloa frumentacea Link — 18 images
Japanese pagoda tree, Chinese scholar tree — Styphnolobium japonicum (L.) Schott. — 1 images
Japanese privet, ibota privet — Ligustrum obtusifolium Sieb. & Zucc. var. obtusifolium — 22 images
Japanese rose — Kerria japonica (L.) DC. — 4 images
Japanese rose, saltspray rose — Rosa rugosa Thunb. — 36 images
Japanese snowball viburnum — Viburnum plicatum Thunb. — 12 images
Japanese snowbell — Styrax japonicus Siebold & Zucc. — 9 images
Japanese spirea — Spiraea japonica var. fortunei (Planch.) Rehd. — 7 images
Japanese spurge — Pachysandra terminalis Sieb. & Zucc. — 10 images
Japanese stewartia — Stewartia pseudocamellia Maxim. — 3 images
Japanese stiltgrass — Microstegium vimineum (Trin.) A.Camus — 29 images
Japanese walnut — Juglans ailanthifolia 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 — 15 images
Java waterdropwort, water dropwort, water celery — Oenanthe javanica (Blume) DC. — 10 images
Jerusalem artichoke — Helianthus tuberosus L. — 23 images
Jesup's willow (white willow × shining willow) — Salix ×jesupii Fern. — 18 images
June grass, narrow-leaved Kentucky bluegrass — Poa pratensis ssp. angustifolia (L.) Arcang. — 8 images
Kaempfer's azalea, torch azalea — Rhododendron kaempferi — 3 images
Korean hibiscus — Hibiscus syriacus L. — 6 images
Lamarck's bedstraw, Mediterranean bedstraw — Galium divaricatum Pourret ex Lam. — 5 images
Langsdorff's bluejoint — Calamagrostis canadensis var. langsdorffii (Link) Inman — 4 images
Leconte's violet, sand violet — Viola affinis Leconte — 26 images
Leggett's pinweed — Lechea pulchella var. pulchella Raf. var. pulchella — 4 images
Loesel's 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 woolgrass — Scirpus longii Fernald — 6 images
Long's sedge — Carex longii Mackenzie — 36 images
Lucilia's glory-of-the-snow — Chionodoxa luciliae Boiss. — 12 images
Mackenzie's sedge — Carex cf. mackenziei Krecz. — 7 images
Maryland black snakeroot, Maryland sanicle — Sanicula marilandica L. — 21 images
Maryland or smooth small-leaved ticktrefoil — Desmodium marilandicum (L.) DC. — 25 images
Massachusetts fern — Thelypteris simulata (Davenport) Holttum — 23 images
Meserve holly — Ilex aquifolium × I. rugosa — 8 images
Mexican tea, wormseed — Chenopodium ambrosioides (L.) Mosyakin & Clemants — 17 images
Meyer's willow — Salix ×meyeriana Rostk. — 5 images
Mock Bishop's weed — Ptilimnium capillaceum (Michaux) Raf. — 14 images
Monckton's knapweed — Centaurea ×moncktonii C.E.Britton — 34 images
Morison's spurrey — Spergula morisonii Boreau — 33 images
Morrow's honeysuckle — Lonicera morrowii A.Gray — 53 images
Muhlenberg's beadgrass — Paspalum setaceum var. muhlenbergii (Nash) D.Banks — 33 images
Muhlenberg's sedge — Carex muhlenbergii Schkuhr ex Willd. — 3 images
Nantucket shadbush, Nantucket serviceberry, Nantucket juneberry — Amelanchier nantucketensis Bickn. — 18 images
New England aster — Aster novae-angliae (L.) G.L.Nesom — 25 images
New England blazing star — Liatris 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 grape — Vitis ×novae-angliae Fern. — 4 images
New England sand blackberry — Rubus arenicola Blanchard — 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 — Aster novi-belgii (L.) Nesom var. novi-belgii — 49 images
New York fern — Thelypteris noveboracensis (L.) Ching — 22 images
New York ironweed — Vernonia noveboracensis (L.) Michaux — 29 images
Nippon daisy — Nipponanthemum nipponicum (Franch. ex Maxim.) Kitam. — 9 images
North American reed — Phragmites australis ssp. americanus Saltonstall, P.M.Peterson & Soreng — 16 images
Norway maple — Acer platanoides L. — 36 images
Norway spruce — Picea abies (L.) H.Karst. — 54 images
Nuttall's milkwort — Polygala nuttallii Torrey & A.Gray — 17 images
Nuttall's 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 Robbins — 13 images
Oconee bells — Shortia galacifolia Torr. & A.Gray — 10 images
Oriental bittersweet, Asian bittersweet — Celastrus orbiculatus Thunb. — 92 images
Oriental photinia, Christmas berry — Photinia villosa (Thunb.) DC. — 3 images
Ozark beggarticks — Bidens polylepis Blake — 10 images
Ozark witch-hazel, spring witch-hazel — Hamamelis vernalis Sarg. — 15 images
Parker's pipewort — Eriocaulon parkeri Robinson — 8 images
Peck's bulrush — Scirpus ×peckii Britton — 14 images
Pennsylvania pellitory, rock pellitory — Parietaria pensylvanica Muhl. ex Willd. — 7 images
Pennsylvania sedge — Carex pensylvanica Lam. — 27 images
Philadelphia fleabane — Erigeron philadelphicus L. — 4 images
Philadelphia panic grass — Panicum philadelphicum Bernh. ex Trin. ssp. philadelphicum — 11 images
Pickering's reedgrass — Calamagrostis pickeringii A.Gray — 23 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 — Aster pilosus var. pringlei (A.Gray) G.L.Nesom — 10 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 — Agrostis capillaris L. — 4 images
Rich's sea blite — Suaeda richii (Fern.) Bassett & Crompton — 4 images
Robbins' spikerush — Eleocharis robbinsii Oakes — 62 images
Russian olive, oleaster, silverberry — Elaeagnus angustifolia L. — 13 images
Russian sage — Perovskia atriplicifolia Benth. — 12 images
Sakhalin corktree — Phellodendron sachalinense (Fr.Schmidt) Sarg. — 20 images
Sakhalin spindletree — Euonymus sachalinensis (Fr.Schmidt) Maxim. — 14 images
Saul's oak — Quercus ×saulii C.K.Schneider — 13 images
Savoy hawkweed — Hieracium sabaudum L. — 31 images
Scotch broom — Cytisus scoparius (L.) Link var. scoparius — 20 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
Scots elm, wych elm — Ulmus glabra Hudson — 3 images
Scribner's panic grass — Dichanthelium oligosanthes var. scribnerianum (Nash) Freckmann & Lelong — 9 images
Siberian crabapple — Malus baccata (L.) Borkh. — 25 images
Siberian elm, dwarf elm — Ulmus pumila L. — 18 images
Siberian iris — Iris sibirica L. — 12 images
Siberian squill — Scilla siberica (Haw. ex Andr.) Speta — 10 images
Siebold's euonymus — Euonymus sieboldianus Blume — 7 images
Slosson's wood fern — Dryopteris ×slossoniae Wherry ex Lellinger — 11 images
Smith's blackberry — Rubus jaysmithii Bailey — 20 images
Smith's clubsedge — Scirpus smithii (A.Gray) Soják var. smithii — 11 images
Smith's willow — Salix ×smithiana Willd. — 9 images
Sosnowsky's giant hogweed — Heracleum sosnowskyi Manden. — 5 images
South American vervain, purpletop vervain — Verbena bonariensis L. — 17 images
Spanish bayonet, Adam's needle — Yucca filamentosa L. — 17 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. — 4 images
Texan flax, stiff yelow flax — Linum medium var. texanum (Planchon) Fern. — 7 images
Texas flatsedge — Cyperus polystachyos Rottb. — 7 images
Thunberg's meadowsweet — Spiraea thunbergii Sieb. — 13 images
Torrey's beaksedge — Rhynchospora torreyana A.Gray — 8 images
Tradescant's aster — Aster tradescantii (L.) G.L.Nesom — 9 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. — 24 images
Turkish hazel, filbert — Corylus colurna L. — 11 images
Tyrol knapweed, Vochin knapweed, Wocheiner knapweed, short-fringed knapweed — Centaurea nigrescens Willd. — 7 images
Vasey's azalea — Rhododendron vaseyi A.Gray — 7 images
Venus' looking glass, clasping bellflower — Triodanis perfoliata (L.) Nieuwl. — 16 images
Virginia chain fern — Woodwardia virginica (L.) Smith — 36 images
Virginia cottongrass, tawny cottongrass — Eriophorum virginicum L. — 36 images
Virginia cowslip, Virginia bluebells — Mertensia virginica (L.) Pers. ex Link — 4 images
Virginia creeper — Parthenocissus quinquefolia (L.) Planchon — 55 images
Virginia mountain mint — Pycnanthemum virginianum (L.) Durand & B.D.Jackson — 6 images
Virginia pepperweed, poor-man's pepper — Lepidium virginicum L. var. virginicum — 28 images
Virginia rose, low rose — Rosa virginiana P.Miller — 29 images
Virginia spiderwort — Tradescantia virginiana L. — 8 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 — Hydrophyllum virginianum L. — 11 images
Virginia wild rye — Elymus virginicus L. var. virginicus — 17 images
Virginia yellow flax, woodland yellow flax — Linum virginianum L. — 26 images
Walter's cockspur — Echinochloa walterii (Pursh) Heller — 14 images
Walter's sedge — Carex striata Michx. — 19 images
Washington hawthorn — Crataegus phaenopyrum (L.f.) Medicus — 5 images
West Asian willow — Salix euxina Belyaeva — 18 images
Wiegand's rush — Juncus anthelatus (Wieg.) R.E.Brooks — 8 images
Wright's panic grass — Dichanthelium wrightianum (Scribner) 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.Small — 29 images
aizoon stonecrop — Sedum aizoon (L.) V.Grulich — 5 images
alder-leaved mountain ash, Korean mountain ash — Sorbus alnifolia (Siebold & Zucc.) K.Koch — 2 images
alsike clover — Trifolium hybridum L. — 9 images
aniseroot — Osmorhiza longistylis (Torrey) DC. — 20 images
annual baby's breath, showy baby's breath — Gypsophila elegans Bieb. — 2 images
annual bluegrass — Poa annua L. — 15 images
annual glasswort, common glasswort — Salicornia depressa Standl. — 27 images
annual honesty — Lunaria annua L. — 12 images
annual knawel — Scleranthus annuus L. — 14 images
annual ragweed — Ambrosia artemisiifolia L. — 26 images
annual saltmarsh aster, small-flowered saltmarsh aster — Aster subulatus (Michaux) G.L.Nesom var. subulatum — 15 images
annual sand bean, trailing fuzzy bean — Strophostyles helvola (L.) Ell. — 23 images
annual sowthistle — Sonchus oleraceus L. — 16 images
annual umbrella sedge, dwarf umbrella sedge — Fuirena pumila (Torrey) Sprengel — 32 images
arborvitae, northern white cedar, eastern white cedar — Thuja occidentalis L. — 14 images
arching sand blackberry — Rubus recurvicaulis Blanchard — 7 images
arrowleaf tearthumb — Polygonum sagittatum (L.) H.Gross — 16 images
arrowleaf violet — Viola sagittata Aiton var. sagittata — 2 images
ash willow — Salix cinerea L. — 36 images
auburn panic grass, tapered rosette grass — Dichanthelium acuminatum (Sw.) Gould & Clark ssp. acuminatum — 7 images
autumn olive, oleaster — Elaeagnus umbellata (Royle) Schneid. — 54 images
autumn willow — Salix serissima (Bailey) Fern. — 31 images
awl-fruited sedge — Carex stipata Muhl. ex Willd. — 17 images
awned vernalgrass, Puel's vernalgrass — Anthoxanthum aristatum var. aristatum Pérez-Lara — 3 images
awned woodgrass, bearded shorthusk — Brachyelytrum erectum (Schreber ex Sprengel) Beauv. — 5 images
awnless brome, smooth brome — Bromus inermis Leysser — 12 images
awnless woodland muhly — Muhlenbergia sobolifera (Muhl. ex Willd.) Trin. — 9 images
balm-of-Gilead — Populus ×jackii Sarg. — 1 images
balsam fir — Abies balsamea (L.) P.Miller — 28 images
balsam poplar — Populus balsamifera L. — 5 images
balsam ragwort, balsam groundsel — Senecio paupercula (Michaux) W.A.Weber & A.Löve — 9 images
barnyard grass — Echinochloa crus-galli (L.) Beauv. — 22 images
barren brome — Bromus sterilis L. — 4 images
barren strawberry — Geum fragarioides (Michaux) Smedmark — 4 images
barrens needlegrass — Aristida longespica var. geniculata (Raf.) Fern. — 11 images
basket willow — Salix purpurea L. — 17 images
basket willow × common osier — Salix purpurea × S. viminalis — 1 images
basswood, American linden — Tilia americana L. var. americana — 49 images
bastard toadflax — Comandra umbellata (L.) Nutt. — 32 images
bayberry — Myrica 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 Leggett ex B.S.P. var. maritima — 77 images
beach plum — Prunus maritima Marsh. var. maritima — 62 images
beaded broom sedge, necklace broom sedge — Carex projecta Mackenzie — 8 images
beaked hazelnut — Corylus cornuta Marsh. — 28 images
bearberry — Arctostaphylos uva-ursi (L.) Sprengel — 40 images
beautybush — Kolkwitzia amabilis Graebner — 8 images
beechdrops — Epifagus virginiana (L.) W.P.C.Barton — 30 images
big bluestem — Andropogon gerardii Vitman — 36 images
big cordgrass, salt reedgrass — Spartina cynosuroides (L.) Roth — 15 images
big quaking grass — Briza maxima L. — 5 images
big star sedge — Carex rosea Schkuhr ex Willd. — 11 images
big straw sedge — Carex normalis Mackenzie — 4 images
big water smartweed, coarse smartweed — Polygonum robustius (Small) Bicknell — 14 images
big-bracted dogwood, kousa dogwood — Cornus kousa (Sieb. & Zucc.) H.Hara — 9 images
big-headed hornsedge — 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 Michaux — 2 images
bigleaf pondweed — Potamogeton amplifolius Tuckerman — 3 images
bigtooth aspen — Populus grandidentata Michaux — 38 images
birchleaf spirea, white meadowsweet — Spiraea betulifolia Pall. — 5 images
bird vetch — Vicia cracca L. ssp. cracca — 13 images
birdfoot trefoil — Lotus corniculatus L. — 10 images
birdseye speedwell, germander speedwell — Veronica chamaedrys L. — 4 images
birdsfoot violet — Viola pedata L. — 34 images
bitter panic grass — Panicum amarum ssp. amarulum 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 — Agrostis gigantea Roth — 6 images
black bulrush, Georgia bulrush — Scirpus georgianus Harper — 6 images
black cherry — Prunus serotina Ehrh. — 82 images
black chokeberry — Aronia melanocarpa (Michx.) Ell. — 37 images
black cohosh, black snakeroot, bugbane — Cimicifuga racemosa L. — 6 images
black highbush blueberry — Vaccinium fuscatum Ait. — 35 images
black huckleberry — Gaylussacia baccata (Wangenh.) K.Koch — 55 images
black knapweed — Centaurea nigra L. — 3 images
black locust — Robinia pseudoacacia L. — 39 images
black medick — Medicago lupulina L. — 5 images
black oak — Quercus velutina Lam. — 52 images
black oatgrass — Piptochaetium avenaceum (L.) Parodi — 24 images
black raspberry — Rubus occidentalis L. — 22 images
black sedge — Carex nigra (L.) Reichard — 6 images
black snakeroot, Canada blacksnakeroot — Sanicula canadensis L. var. canadensis — 6 images
black spruce — Picea mariana (P.Miller) B.S.P. — 32 images
black swallowwort — Cynanchum louiseae Kartesz & Gandhi — 22 images
black walnut — Juglans nigra L. — 15 images
black willow — Salix nigra Marsh. — 66 images
black-eyed Susan — Rudbeckia hirta var. pulcherrima Farw. — 32 images
black-fruited lowbush blueberry — Vaccinium angustifolium var. nigrum (Wood) Dole — 8 images
black-fruited spikerush — Eleocharis melanocarpa Torrey — 46 images
black-girdled woolsedge, dusky woolgrass — Scirpus atrocinctus Fern. — 2 images
bladder campion — Silene vulgaris (Moench) Garcke — 7 images
bladder sedge, swamp sedge — Carex intumescens Rudge — 19 images
bladder senna — Colutea arborescens L. — 3 images
bladdernut — Staphylea trifolia L. — 4 images
blood amaranth × Powell's amaranth — Amaranthus cruentus × A. powellii — 7 images
bloodroot — Sanguinaria canadensis L. — 22 images
bloody cranesbill, bloody gearanium — Geranium sanguineum L. — 14 images
blue Jacob's ladder — Polemonium caeruleum L. — 1 images
blue cohosh — Caulophyllum thalictroides (L.) Michaux — 8 images
blue false indigo — Baptisia australis (L.) R.Br. ex Ait.f. var. australis — 10 images
blue heartleaf aster — Aster cordifolius (L.) Nesom — 15 images
blue huckleberry, dangleberry — Gaylussacia frondosa (L.) Torr. & A.Gray ex Torr. — 43 images
blue mistflower — Conoclinium coelestinum (L.) DC. — 5 images
blue plantain lily — Hosta ventricosa (Salisb.) Stearn — 6 images
blue pruce — Picea pungens Engelm. — 12 images
blue scorpion grass — Myosotis stricta Link ex Roemer & J.A.Schultes — 27 images
blue toadflax, old-field toadflax — Nuttallanthus canadensis (L.) D.A.Sutton — 37 images
blue vervain, common vervain — Verbena hastata L. — 21 images
blue wild lettuce — Lactuca biennis (Moench) Fern. — 12 images
bluebead lily — Clintonia borealis (Aiton) Ref. — 44 images
bluets — Houstonia caerulea L. — 32 images
blunt broom sedge — Carex tribuloides Wahlenb. — 20 images
blunt-leaved marsh bedstraw, large marsh bedstraw — Galium obtusum Bigelow ssp. obtusum — 4 images
blunt-lobed cliff fern — Woodsia obtusa (Spreng.) Torr. ssp. obtusa — 11 images
blunt-lobed grapefern — Botrychium oneidense (Gilbert) House — 21 images
blunt-lobed liverleaf, blunt-lobed liverwort — Hepatica nobilis var. obtusa (DC.) H.Hara — 28 images
bog aster — Aster nemoralis (Aiton) Greene — 12 images
bog huckleberry — Gaylussacia dumosa var. bigelowiana (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 L. — 40 images
bog willow — Salix pedicellaris Pursh — 37 images
bog yellow-eyed grass — Xyris difformis Chapman — 26 images
bogbean, buckbean — Menyanthes trifoliata L. — 7 images
boneset, thoroughwort — Eupatorium perfoliatum L. — 49 images
border forsythia — Forsythia intermedia Zabel — 22 images
bottle sedge, beaked sedge — Carex utriculata Boott — 29 images
bottlebrush buckeye — Aesculus parviflora Walt. — 16 images
bottlebrush grass — Hystrix patula L. — 16 images
bouncing bet, common soapwort, soapweed — Saponaria officinalis L. — 21 images
bower actinidia, taravine — Actinidia arguta (Sieb. & Zucc.) Planchon ex Miq. — 21 images
boxelder — Acer negundo L. var. negundo — 17 images
bracken fern — Pteridium aquilinum var. latiusculum (Desv.) L.Underw. ex A.Heller — 31 images
brackish rush — Juncus balticus (Willd.) Trautv. — 3 images
bracted plantain — Plantago aristata Michaux — 18 images
branching centaury — Centaurium pulchellum (Sw.) Druce — 4 images
bridalwreath meadowsweet, double spiraea — Spiraea prunifolia Sieb. & Zucc. — 7 images
bristly aster, swamp aster — Aster puniceus (L.) A. & D.Löve var. puniceum — 37 images
bristly blackberry, bog blackberry — Rubus setosus Bigelow — 7 images
bristly dewberry — Rubus hispidus L. — 45 images
bristly foxtail — Setaria parviflora (Poiret) Kerguelen — 4 images
bristly locust — Robinia hispida L. var. hispida — 20 images
bristly sarsaparilla — Aralia hispida Vent. — 36 images
bristly sedge — Carex comosa Boott — 33 images
brittle bladder fern, fragile fern — Cystopteris fragilis (L.) Bernh. — 10 images
brittle willow — Salix ×fragilis L. — 23 images
broad beech fern, southern beech fern — Phegopteris hexagonoptera (Michaux) Fée — 6 images
broad three-seeded mercury — Acalypha rhomboidea Raf. — 18 images
broad-leaved Solomon's seal — Polygonatum latifolium (Jacq.) Desf. — 5 images
broad-leaved cattail — Typha latifolia L. — 30 images
broad-leaved eryngo — Eryngium planum L. — 6 images
broad-leaved meadowsweet — Spiraea alba var. latifolia (Aiton) Dippel — 25 images
broad-leaved panic grass — Dichanthelium latifolium (L.) Gould & Glark — 26 images
broad-leaved pepperweed, tall pepperweed, broad-leaved peppergrass — Lepidium latifolium L. — 18 images
broad-leaved pussytoes — Antennaria fallax (Greene) Bayer & Stebbins — 4 images
broad-leaved ragwort — Senecio obovatus (Muhl. ex Willd.) W.A.Weber & A.Löve — 12 images
broad-leaved springbeauty — Claytonia caroliniana Michx. — 4 images
broad-leaved woodland sedge — Carex platyphylla Carey — 3 images
broad-leaved woolly fruited sedge — Carex pellita Muhl. — 9 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 — 49 images
broom sedge — Carex scoparia Schkuhr ex Willd. — 19 images
broomsedge bluestem, bushy bluestem, Virginia broomsedge — Andropogon virginicus L. — 7 images
brown beakrush — Rhynchospora capitellata (Michx.) Vahl — 36 images
brown beaksedge, sooty beakrush — Rhynchospora fusca (L.) Aiton f. — 8 images
brown knapweed — Centaurea jacea L. — 2 images
brown mustard — Brassica juncea (L.) Czern. — 3 images
brownish sedge — Carex brunnescens (Tuckerman) Kükenth. — 7 images
buckwheat — Fagopyrum esculentum Moench — 12 images
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 (Koel.) Arcang. — 16 images
bulbous buttercup, bulbous crowfoot, St. Anthony's turnip — Ranunculus bulbosus L. — 34 images
bulbous woodrush — Luzula bulbosa (Wood) Rydb. — 2 images
bull thistle — Cirsium vulgare (Savi) Ten. — 38 images
bunchberry, dwarf cornel — Cornus canadensis (L.) Aschers. & Graebn. — 21 images
bunched broomsedge, bushy bluestem — Andropogon glomeratus (Walter) B.S.P. — 31 images
bushclover — Lespedeza sp. — 4 images
bushy rockrose — Helianthemum dumosum Bicknell — 26 images
butterbur — Petasites hybridus (L.) Gaertner, B.Meyer & Scherb. — 11 images
butterfly bush, summer lilac — Buddleja davidii Franch. — 26 images
butterfly milkweed — Asclepias tuberosa L. — 32 images
butternut — Juglans cinerea L. — 10 images
button eryngo — Eryngium yuccifolium Michx. — 4 images
button sedge — Carex bullata Schkuhr ex Willd. — 27 images
buttonbush dodder — Cuscuta cf. cephalanthi Engelm. — 11 images
buttonweed — Diodia teres Walter — 18 images
calico aster, goblet aster — Aster lateriflorus (L.) A. & D.Löve — 22 images
caper spurge — Euphorbia lathyris L. — 3 images
cardinalflower — Lobelia cardinalis L. — 30 images
carpet bugleweed, common bugle, blue bugle — Ajuga reptans L. — 18 images
carpetweed — Mollugo verticillata L. — 29 images
carrion flower — Smilax herbacea L. — 24 images
castor aralia — Kalopanax septemlobus Koidzumi — 11 images
catberry, swamp holly, mountain holly — Nemopanthus mucronatus (L.) M.Powell, Savol., & S.Andrews — 70 images
catbrier, bullbrier — Smilax rotundifolia L. — 33 images
catnip — Nepeta cataria L. — 2 images
cattail sedge — Carex typhina Michaux — 4 images
cedar of Lebanon — Cedrus libani A.Rich. — 2 images
celandine poppy — Stylophorum diphyllum (Michx.) Nutt. — 14 images
changeable panic grass — Dichanthelium commutatum (G.Pearson ex Ashe) Freckmann & Lelong — 6 images
checkered rattlesnake plantain — Goodyera tesselata Lodd. — 18 images
chervil — Anthriscus sylvestris (L.) Hoffmann — 12 images
chestnut oak — Quercus montana Willd. — 36 images
chinquapin — Castanea pumila (L.) P.Miller — 5 images
chocolate vine, five-leaved akebia — Akebia quinata (Houtt.) Dcne. — 28 images
chokecherry — Prunus virginiana L. var. virginiana — 51 images
chosenia — Chosenia arbutifolia (Pallas) A.Skv. — 3 images
cigar tree, northern catalpa — Catalpa speciosa (Warder) Warder ex Engelm. — 8 images
cinnamon fern — Osmunda cinnamomea (L.) C.Presl — 38 images
cinnamon rose — Rosa cinnamomea L. — 4 images
city avens — Geum urbanum L. — 9 images
city goosefoot — Chenopodium urbicum L. — 5 images
clammy groundcherry — Physalis heterophylla Nees var. heterophylla — 16 images
clammy locust — Robinia viscosa Vent. var. viscosa — 8 images
clammy mouse-ear chickweed — Cerastium glomeratum Thuill. — 9 images
clasping aster, skydrops, skydrop aster — Aster patens (Aiton) G.L.Nesom var. patens — 20 images
clasping hartleaf aster, wavyleaf aster — Aster undulatus (L.) G.L.Nesom — 31 images
clasping milkweed — Asclepias amplexicaulis Sm. — 35 images
clearweed, richweed — Pilea pumila (L.) A.Gray — 17 images
cleavers — Galium aparine L. — 12 images
cleft hempnettle — Galeopsis bifida Boenn. — 13 images
climbing false buckwheat, bindweed — Polygonum scandens (L.) Holub — 26 images
climbing hempvine — Mikania scandens (L.) Willd. — 30 images
climbing hydrangea — Hydrangea anomala D.Don — 7 images
climbing nightshade, bittersweet nightshade — Solanum dulcamara L. var. dulcamara — 25 images
cluster-leaved ticktrefoil, pointed-leaf ticktrefoil — Desmodium glutinosum (Muhl. ex Willd.) H.Ohashi & R.R.Mill — 7 images
clustered bellflower — Campanula glomerata L. — 2 images
coarse agrimony, grooved agrimony — Agrimonia striata Michaux — 17 images
coast blite, red goosefoot — Chenopodium rubrum L. var. rubrum — 14 images
coastal mannagrass — Glyceria obtusa (Muhl.) Trin. — 19 images
coastal plain slender goldenrod, slender-leaved flat-topped goldenrod — Euthamia caroliniana (L.) Greene ex Port. & Britt. — 26 images
coastal sandbur — Cenchrus spinifex Cav. — 10 images
cocklebur, clotbur — Xanthium strumarium var. canadense (P.Miller) Torrey & Gray — 12 images
cockspur grass, barnyard grass — Echinochloa muricata (Beauv.) Fern. var. muricata — 3 images
cockspur hawthorn — Crataegus crus-galli L. — 12 images
coltsfoot — Tussilago farfara L. — 50 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 hop — Humulus lupulus L. var. lupulus — 4 images
common European pear — Pyrus communis L. — 27 images
common European speedwell, common gypsyweed, Paul's betony — Veronica officinalis L. — 18 images
common agrimony, woodland agrimony — Agrimonia gryposepala Wallr. — 36 images
common arrowhead, duck potato — Sagittaria latifolia Willd. — 34 images
common barberry — Berberis vulgaris L. — 24 images
common barley — Hordeum vulgare L. — 3 images
common beggarticks, devil's pitchforks — Bidens frondosa L. — 22 images
common bittercress, Pennsylvania bittercress — Cardamine pensylvanica Muhl. ex Willd. — 6 images
common bleeding heart — Dicentra spectabilis (L.) Raf. — 2 images
common blue violet — Viola sororia Willd. — 40 images
common buckthorn — Rhamnus cathartica L. — 39 images
common bulrush, 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, old field cinquefoil — Potentilla simplex Michaux — 14 images
common comfrey — Symphytum officinale L. — 4 images
common dandelion — Taraxacum officinale G.H.Weber ex Wiggers — 28 images
common dodder, swamp dpdder, strangleweed, love-vine — Cuscuta gronovii Willd. ex Roemer & Schultes var. gronovii — 16 images
common dogwood, red dogwood — Cornus sanguinea (L.) Opiz — 4 images
common duckweed — Lemna minor L. — 7 images
common evening primrose — Oenothera biennis L. — 39 images
common fennel — Foeniculum vulgare P.Miller — 4 images
common flat-topped goldenrod, grassleaf flat-topped goldenrod — Euthamia graminifolia (L.) Nutt. — 16 images
common foxglove, purple foxglove — Digitalis purpurea L. var. purpurea — 30 images
common fumitory, medicinal fumitory, earth smoke — Fumaria officinalis L. ssp. officinalis — 5 images
common grape hyacinth — Muscari botryoides (L.) P.Miller — 4 images
common groundsel — Senecio vulgaris L. — 14 images
common hackberry — Celtis occidentalis L. — 40 images
common hairgrass — Deschampsia flexuosa (L.) Trin. — 15 images
common henbit, henbit deadnettle — Lamium amplexicaule L. var. amplexicaule — 9 images
common hoptree, stinking ash, wafer ash — Ptelea trifoliata L. ssp. trifoliata var. trifoliata — 11 images
common juniper, pasture juniper — Juniperus communis var. depressa Pursh — 37 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 lungwort — Pulmonaria officinalis L. — 5 images
common mallow, cheeses — Malva neglecta Wallr. — 14 images
common marsh bedstraw — Galium palustre L. — 4 images
common milkweed — Asclepias syriaca L. — 32 images
common mouse-ear chickweed — Cerastium fontanum ssp. vulgare (Hartman) Greuter & Burdet — 40 images
common mullein — Verbascum thapsus L. — 31 images
common naiad — Najas flexilis (Willd.) Rostk. & Schmidt — 16 images
common osier — Salix viminalis L. — 2 images
common pepperweed — Lepidium densiflorum Schrader var. densiflorum — 2 images
common periwinkle — Vinca minor L. — 32 images
common plantain, white man's foot — Plantago major L. — 20 images
common purslane — Portulaca oleracea L. — 20 images
common quince — Cydonia oblonga P.Miller — 2 images
common reed — Phragmites australis (Cav.) Trin. ex Steudel ssp. australis — 64 images
common rough-stemmed goldenrod, common wrinkle-leaved goldenrod — Solidago rugosa P.Miller var. rugosa — 29 images
common sand spurrey, red sand spurrey — Spergularia rubra (L.) J. & K.Presl — 13 images
common shepherd's cress — Teesdalia nudicaulis (L.) Ait.f. — 43 images
common sunflower, mirasol — Helianthus annuus L. — 5 images
common tansy — Tanacetum vulgare L. — 16 images
common teasel — Dipsacus fullonum L. — 3 images
common threesquare — Scirpus pungens (Vahl) Palla var. pungens — 32 images
common valerian, garden heliotrope, all-heal — Valeriana officinalis L. — 10 images
common viper's bugloss, blue weed — Echium vulgare L. — 3 images
common winterberry — Ilex verticillata (L.) A.Gray — 55 images
common woodreed — Cinna arundinacea L. — 18 images
common woodrush — Luzula 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 — 47 images
common yellow woodsorrel — Oxalis stricta L. — 25 images
concealed sedge — Carex abscondita Mackenzie — 3 images
coralberry — Symphoricarpos orbiculatus Moench — 6 images
corn — Zea mays L. — 4 images
corn speedwell — Veronica arvensis L. — 18 images
corn spurrey — Spergula arvensis L. — 5 images
cornflower, bachelor's button — Centaurea cyanus L. — 2 images
couchgrass, quackgrass — Elytrigia repens (L.) Gould — 6 images
cow herb, cowcockle — Vaccaria hispanica (P.Miller) Rauschert — 6 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 — Ranunculus repens L. — 28 images
creeping jenny, moneywort — Lysimachia nummularia L. — 12 images
creeping phlox — Phlox stolonifera Sims — 2 images
creeping poison ivy — Toxicodendron rydbergi (Small ex Rydb.) Greene — 5 images
creeping snowberry — Gaultheria hispidula (L.) Muhl. ex Bigelow — 16 images
creeping sorrel — Oxalis corniculata L. — 10 images
creeping speedwell — Veronica filiformis L. — 2 images
crested dwarf iris — Iris cristata Aiton — 1 images
crested wheatgrass — Agropyron cristatum (L.) Gaertner — 2 images
crested wood fern — Dryopteris cristata (L.) A.Gray — 34 images
crimson weigela — Weigela floribunda (Sieb. & Zucc.) C.A.Mey. — 1 images
crinkleroot, two-leaved toothwort — Cardamine diphylla (Michaux) Wood — 17 images
crispy pondweed, curly pondweed — Potamogeton crispus L. — 3 images
crowded sedge — Carex cumulata (Bailey) Mackenzie — 12 images
cuckoo flower — Cardamine pratensis L. — 22 images
cucumber tree, cucumbertree — Magnolia acuminata L. — 6 images
cultivar 'Viking' — Aronia mitschurinii Skvorts. — 3 images
cultivars — Narcissus spp. — 6 images
cultivated oat — Avena sativa L. — 1 images
cup plant — Silphium perfoliatum L. — 16 images
curly dock — Rumex crispus L. — 27 images
cursed buttercup, celery-leaved buttercup, cursed crowfoot, celery-leaved crowfoot — Ranunculus sceleratus L. var. sceleratus — 7 images
cut-leaved grapefern — Botrychium dissectum Sprengel — 11 images
cut-leaved mermaidweed, comb-leaved mermaidweed — Proserpinaca pectinata Lam. — 13 images
cut-leaved toothwort, five-parted toothwort — Cardamine concatenata (Michaux) 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 (Doll) A.Braun ex W.D.J.Koch — 5 images
dame's rocket, dame's violet, Damask violet — Hesperis matronalis L. — 24 images
dark green bulrush, dark green bulsedge — Scirpus atrovirens Willd. — 4 images
dawn redwood — Metasequoia glyptostroboides Hu & W.C.Cheng — 10 images
dayflower — Commelina communis L. — 3 images
deerberry — Vaccinium stamineum L. — 6 images
deertongue — Dichanthelium clandestinum (L.) Gould — 19 images
delicate sedge — Carex leptalea Wahlenb. — 4 images
dense blazing star, marsh blazing star — Liatris spicata L. — 8 images
dense dodder, compact dodder — Cuscuta compacta Juss. ex Choisy — 8 images
devil's tongue, eastern prickly pear — Opuntia humifusa (Raf.) Raf. — 8 images
dewdrop — Dalibarda repens L. — 15 images
ditch stonecrop — Penthorum sedoides L. — 15 images
ditchgrass, widgeongrass — Ruppia maritima L. — 21 images
dog chamomile, corn chamomile — Anthemis arvensis L. — 9 images
dog rose — Rosa canina L. — 16 images
doghobble, drooping fetterbush — Leucothoe fontanesiana (Steudel) Sleumer — 15 images
doll's eyes, white baneberry — Actaea pachypoda Ell. — 24 images
doorweed — Polygonum aviculare L. — 26 images
dotted smartweed, perennial water smartweed — Polygonum punctatum (Ell.) Small — 24 images
downy goldenrod — Solidago puberula Nutt. — 20 images
downy groundcherry, strawberry-tomato — Physalis grisea (Waterfall) M.Martinez — 5 images
downy hawthorn — Crataegus submollis Sarg. — 9 images
downy panic grass — Dichanthelium columbianum (Scribner) Freckmann & Lelong — 8 images
downy rattlesnake plantain — Goodyera pubescens (Willd.) R.Br. — 18 images
downy serviceberry — Amelanchier arborea (Michaux f.) Fern. — 16 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 false foxglove — Aureolaria virginica (L.) Pennell — 27 images
downy yellow violet — Viola pubescens Aiton var. pubescens — 8 images
dragon's mouth — Arethusa bulbosa L. — 7 images
drooping brome, downy chess — Bromus tectorum L. — 10 images
dryspike sedge — Carex siccata Dewey — 6 images
dune grass — Ammophila breviligulata Fern. — 32 images
dustymiller, beach wormwood — Artemisia stelleriana Bess. — 16 images
dwarf Japanese knotweed — Polygonum cuspidatum var. compactum (Hook.f.) J.P.Bailey — 5 images
dwarf St. John's-wort — Hypericum mutilum L. — 3 images
dwarf bulrush — Lipocarpha micrantha (Vahl) G.C.Tucker — 27 images
dwarf chestnut oak — Quercus prinoides Willd. — 65 images
dwarf cinquefoil — Potentilla canadensis L. — 23 images
dwarf dandelion — Krigia virginica (L.) Willd. — 39 images
dwarf ginseng — Panax trifolius L. — 25 images
dwarf glasswort — Salicornia bigelovii Torrey — 15 images
dwarf mouse-ear chickweed — Cerastium pumilum W.Curtis ssp. pumilum — 7 images
dwarf spikerush — Eleocharis parvula (Roemer & Schultes) Link ex Bluff, Nees & Schauer — 7 images
dwarf upland willow — Salix occidentalis Walter — 89 images
dyer's greenweed — Genista tinctoria L. — 3 images
early azalea — Rhododendron prinophyllum (Small) Millais — 17 images
early buttercup, early crowfoot — Ranunculus fascicularis Muhl. ex Bigelow — 9 images
early goldenrod — Solidago juncea Aiton — 20 images
early meadowrue — Thalictrum dioicum L. — 18 images
early saxifrage — Saxifraga virginiensis (Michaux) 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. — 6 images
eastern black nightshade — Solanum ptychanthum Dun. — 18 images
eastern blue-eyed grass — Sisyrinchium atlanticum Bicknell — 4 images
eastern cottonwood — Populus deltoides Bartram ex Marsh. — 29 images
eastern daisy fleabane — Erigeron annuus (L.) Pers. — 15 images
eastern dwarf mistletoe — Arceuthobium pusillum Peck — 3 images
eastern figwort, Maryland figwort — Scrophularia marilandica L. — 7 images
eastern floatgrass — Glyceria septentrionalis A.S.Hitchc. — 13 images
eastern grasswort — Lilaeopsis chinensis (L.) Kuntze — 2 images
eastern hemlock — Tsuga canadensis (L.) Carr. — 51 images
eastern hophornbeam — Ostrya virginiana (P.Mill.) K.Koch — 42 images
eastern red cedar — Juniperus virginiana (Fern. & Griscom) A.E.Murray — 71 images
eastern sweetshrub — Calycanthus floridus var. glaucus (Willd.) Torrey & A.Gray — 6 images
eastern willowherb, purple-leaved willowherb, cinnamon willowherb — Epilobium coloratum Biehler — 3 images
ebony spleenwort — Asplenium platyneuron (L.) B.S.P. — 27 images
edging lobelia, garden lobelia, trailing lobelia — Lobelia erinus L. — 6 images
elliptic shinleaf, large-leaved shinleaf, waxflower shinleaf — Pyrola elliptica Nutt. — 24 images
elmleaf goldenrod — Solidago ulmifolia Muhl. ex Willd. var. ulmifolia — 30 images
enchanter's nightshade — Circaea lutetiana ssp. canadensis (L.) Hill ssp. canadensis — 22 images
erect sea blite, slender sea blite — Suaeda linearis (Ell.) Moq. — 9 images
erect water smartweed — Polygonum amphibium var. emersum (L.) S.F.Gray — 23 images
evergreen candytuft — Iberis sempervirens L. — 4 images
exotic birch — Betula sp. — 10 images
fall dandelion, hawkbit — Leontodon autumnalis (L.) Moensch ssp. autumnalis — 27 images
fall panic grass — Panicum dichotomiflorum Michaux var. dichotomiflorum — 38 images
fall phlox, garden phlox — Phlox paniculata L. — 2 images
false Solomon's seal — Smilacina racemosa (L.) Link ssp. racemosum — 19 images
false buckwheat, black bindweed — Polygonum convolvulus (L.) A.Löve — 3 images
false daisy, Yerba de Tajo — Eclipta prostrata (L.) L. — 7 images
false dragonhead — Physostegia virginiana (L.) Bentham ssp. virginiana — 4 images
false hellebore — Veratrum viride Aiton — 26 images
false hop sedge — Carex lupuliformis Sartwell ex Dewey — 2 images
false nettle, bog hemp — Boehmeria cylindrica (L.) Sw. — 22 images
false pimpernel — Lindernia dubia var. anagallidea (Michaux) Cooperrider — 27 images
false pimpernel — Lindernia dubia var. dubia (L.) Pennell var. dubia — 3 images
false spirea — Sorbaria sorbifolia (L.) A.Braun — 11 images
false sunflower — Heliopsis helianthoides (Dunal) Fern. — 18 images
false water pepper, mild water pepper — Polygonum hydropiperoides (Michaux) Small — 28 images
fascicled panic grass — Dichanthelium acuminatum var. fasciculatum (Torrey) Freckmann & Lelong — 19 images
featherfoil — Hottonia inflata Ell. — 28 images
feathertop, bushgrass — Calamagrostis epigeios (K.Koch) Ledeb. — 28 images
fern flatsedge — Cyperus filicinus Vahl — 5 images
fernleaf yellow false foxglove — Aureolaria pedicularia (L.) Raf. var. pedicularia — 37 images
fetterbush, mountain andromeda — Pieris floribunda (Pursh) Benth. & Hook. — 39 images
feverfew — Tanacetum parthenium (L.) Sch. Bip. — 7 images
fewfruited sedge, fewseeded sedge — Carex oligosperma Michaux — 13 images
fibrous-rooted sedge, colonial sedge — Carex communis Bailey var. communis — 2 images
field bindweed — Convolvulus arvensis L. — 4 images
field chess — Bromus arvensis L. — 3 images
field cress, cow cress — Lepidium campestre (L.) Aiton f. — 26 images
field dodder, prairie dodder — Cuscuta campestris Yuncker — 27 images
field forget-me-not, field scorpiongrass — Myosotis arvensis (L.) Hill — 6 images
field garlic — Allium vineale L. — 10 images
field horsetail, common horsetail — Equisetum arvense L. — 34 images
field mint — Mentha arvensis (Becker) Briq. — 2 images
field pansy — Viola arvensis Murray — 7 images
field pennycress — Thlaspi arvense L. — 35 images
field pussytoes — Antennaria neglecta Greene — 8 images
field sedge — Carex conoidea Schkuhr ex Willd. — 5 images
field sowthistle, corn sowthistle — Sonchus arvensis L. ssp. arvensis — 8 images
field stitchwort, common stitchwort — Stellaria graminea L. — 29 images
field thistle — Cirsium discolor (Muhl. ex Willd.) Sprengel — 3 images
field woodrush — Luzula campestris (L.) DC. — 6 images
fireweed, pilewort — Erechtites hieraciifolius (L.) Raf. ex DC. — 31 images
five-angled dodder — Cuscuta pentagona Engelm. — 19 images
five-leaved aralia — Eleutherococcus pentaphyllus (Sieb. & Zucc.) Nakai — 8 images
flame azalea — Rhododendron calendulaceum (Michx.) Torr. — 8 images
flameleaf sumac, winged sumac — Rhus copallina L. — 36 images
flat pea, narrow-leaved everlasting pea — Lathyrus sylvestris L. — 13 images
flat-stemmed bluegrass, Canada bluegrass — Poa compressa L. — 14 images
flat-stemmed panic grass — Panicum rigidulum Bosc ex Nees ssp. rigidulum — 17 images
flatpod alyssum — Berteroa mutabilis (Vent.) DC. — 1 images
floating heart — Nymphoides cordata (Ell.) Fern. — 26 images
floating pondweed — Potamogeton natans L. — 6 images
flowering dogwood — Cornus florida (L.) Spach — 50 images
fly honeysuckle — Lonicera canadensis Bartram ex Marsh. — 4 images
foamflower — Tiarella cordifolia L. — 21 images
fool's parsley — Aethusa cynapium L. — 13 images
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 chickweed — Paronychia canadensis (L.) A.Wood — 11 images
forked coontail — Ceratophyllum echinatum A.Gray — 5 images
forked panic grass — Dichanthelium dichotomum (L.) Gould ssp. dichotomum — 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 grass — Poa palustris L. — 6 images
fowlmeadow grass, fowl mannagrass — Glyceria striata (Lam.) A.S.Hitchc. — 12 images
fox grape — Vitis labrusca L. — 48 images
fox sedge — Carex vulpinoidea Michaux — 21 images
fragrant sumac — Rhus aromatica Aiton — 10 images
freeway sedge — Carex praegracilis W.Boott — 10 images
freshwater cordgrass, prairie cordgrass — Spartina pectinata Link — 41 images
fringed bindweed — Polygonum cilinode (Michaux) Holub — 1 images
fringed bleeding heart, eastern bleeding heart, Appalachian bleeding heart, turkey corn — Dicentra eximia (Ker Gawl.) Torrey — 2 images
fringed gentian — Gentianopsis crinita (Froel.) Y.C.Ma — 11 images
fringed loosestrife — Lysimachia ciliata L. — 14 images
fringed polygala, flowering wintergreen — Polygala paucifolia Willd. — 14 images
fringed sedge, awned sedge — Carex crinita Lam. var. crinita — 21 images
frosted hawthorn — Crataegus pruinosa (Wendl.f.) K.Koch — 4 images
fuzzy deutzia — Deutzia scabra Thunb. — 26 images
galax, beetleweed, wandflower — Galax urceolata (Poiret) Brummitt — 17 images
galingale sedge — Carex pseudocyperus L. — 13 images
garden asparagus — Asparagus officinalis L. — 16 images
garden burnet — Sanguisorba minor ssp. muricata Scop — 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 lady's mantle — Alchemilla mollis (Buser) Rothm. — 2 images
garden lupine, Washington lupine — Lupinus polyphyllus Lindley var. polyphyllus — 17 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 red currant — Ribes rubrum L. — 17 images
garden strawberry — Fragaria ×ananasa Duchesne — 3 images
garden tulip — Tulipa gesneriana L. — 19 images
garden violet, wild pansy, Johnny-jump-up — Viola tricolor L. — 9 images
garlic — Allium sativum L. — 4 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
giant Solomon's seal — Polygonatum biflorum (Walter) Ell. — 4 images
giant bur-reed — Sparganium eurycarpum Engelm. ex A.Gray — 10 images
giant chickweed — Myosoton aquaticum (L.) Moensch — 5 images
giant foxtail, nodding foxtail — Setaria faberi Herrm. ex Rosen — 21 images
giant knotweed — Polygonum sachalinense (F.S.Petrop. ex Maxim.) R.Decr. — 11 images
giant reed — Phragmites altissimus (Benth.) Mabille — 17 images
glandular willowherb, American willowherb — Epilobium ciliatum Raf. — 33 images
glaucous pigweed — Chenopodium strictum ssp. glaucophyllum (Aellen) Aellen & Just. — 4 images
globose watermeal — Wolffia columbiana Karsten — 6 images
glossy buckthorn — Rhamnus frangula P.Miller — 34 images
goat's beard — Aruncus dioicus (Walter) Fern. — 4 images
goat's rue, rabbit pea — Tephrosia virginiana (L.) Pers. — 21 images
golden alexanders — Zizia aurea (L.) Koch — 13 images
golden clover, palmate hopclover — Trifolium agrarium L. — 9 images
golden club — Orontium aquaticum L. — 3 images
golden flatsedge — Cyperus microiria Steudel — 10 images
golden hedgehyssop, golden pert — Gratiola aurea Pursh — 40 images
golden ragwort — Senecio aureus (L.) A. & D.Löve — 22 images
golden rain tree — Koelreuteria paniculata Laxm. — 12 images
golden saxifrage, watercarpet — Chrysosplenium americanum Schwein. ex Hooker — 22 images
goldmoss stonecrop — Sedum acre L. — 5 images
goosegrass, yard grass — Eleusine indica (L.) Gaertner — 16 images
gooseneck loosestrife — Lysimachia clethroides Duby ex DC. — 4 images
goutweed — Aegopodium podagraria L. — 33 images
grassleaf arrowhead — Sagittaria graminea Michaux var. graminea — 6 images
grassleaf pondweed — Potamogeton gramineus L. — 4 images
grassleaf rush — Juncus marginatus Rostk. — 12 images
gray birch — Betula populifolia Marsh. — 49 images
gray dogwood — Cornus racemosa (Lam.) Moldenke — 24 images
gray goldenrod — Solidago nemoralis Ait. — 21 images
gray-headed prairie coneflower — Ratibida pinnata (Vent.) Barnh. — 10 images
great bladderwort, common bladderwort — Utricularia vulgaris Le Conte — 26 images
great blue lobelia — Lobelia siphilitica L. — 15 images
great burdock — Arctium lappa L. — 5 images
great butterbur — 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 — Doronicum pardalianches L. — 18 images
great water dock — Rumex britannica L. — 25 images
greater bittercress, wavy bittercress — Cardamine flexuosa With. — 44 images
greater celandine — Chelidonium majus L. — 16 images
greater duckweed — Spirodela polyrhiza (L.) Schleiden — 4 images
greater periwinkle — Vinca major L. — 9 images
greater snowdrop — Galanthus elwesii Hook.f. — 8 images
greater water starwort, two-headed water starwort, variable water starwort — Callitriche heterophylla Pursh var. heterophylla — 40 images
green arrow arum, bog arum, tuckahoe — Peltandra virginica (L.) Schott ex Schott & Endl. — 28 images
green ash — Fraxinus pennsylvanica Marshall — 57 images
green bean — Phaseolus vulgaris L. — 1 images
green foxtail — Setaria viridis (L.) Beauv. — 11 images
green snowdrop, Woronow's snowdrop — Galanthus woronowii Losinsk. — 8 images
green woodland orchid — Platanthera clavellata (Michaux) Luer — 17 images
green-flowered shinleaf — Pyrola chlorantha Sw. — 12 images
green-fruited bur-reed — Sparganium emersum Rehmann — 14 images
green-headed coneflower, tall coneflower — Rudbeckia laciniata L. var. laciniata — 5 images
greenstem forsythia, Korean forsythia — Forsythia viridissima Lindl. — 9 images
ground ivy, gill-over-the-ground — Glechoma hederacea L. — 21 images
groundnut — Apios americana Medik. — 40 images
grove sandwort — Moehringia lateriflora (L.) Fenzl — 15 images
hair fescue — Festuca filiformis Pourret — 9 images
hair-like pondweed — Potamogeton bicupulatus Fernald — 18 images
hairy Solomon's seal — Polygonatum pubescens (Willd.) Pursh — 29 images
hairy bedstraw — Galium pilosum Aiton — 29 images
hairy bittersweet nightshade, hairy deadly nightshade — Solanum dulcamara var. villosissimum Desv. — 5 images
hairy bush honeysuckle — Diervilla rivularis Gattinger — 9 images
hairy bushclover — Lespedeza hirta (L.) Hornem. — 13 images
hairy bushpea, Blue Ridge buckbean — Thermopsis villosa (Walter) Fern. & Schubert — 5 images
hairy cat's-ear, spotted cat's ear — Hypochaeris radicata L. — 44 images
hairy chess — Bromus commutatus Schrader — 3 images
hairy forked chickweed — Paronychia fastigiata (Raf.) Fern. var. fastigiata — 8 images
hairy pinesap — Monotropa lanuginosa (Michx.) Nutt. — 18 images
hairy pinweed — Lechea mucronata Raf. — 59 images
hairy quickweed — Galinsoga quadriradiata Ruiz & Pavón — 13 images
hairy sedge — Carex hirta L. — 5 images
hairy small-leaved ticktrefoil — Desmodium ciliare (Muhl. ex Willd.) DC. — 11 images
hairy vetch — Vicia villosa Roth — 4 images
halberd-leaf orache, prostrate orache — Atriplex prostrata Boucher ex DC. — 23 images
halberdleaf tearthumb — Polygonum arifolium (L.) Haroldson — 18 images
hard fescue — Festuca trachyphylla (Hack.) Krajina — 17 images
hard-stemmed bulrush — Scirpus acutus (Muhl. ex Bigel.) A. & D.Löve var. acutus — 6 images
harsh sunflower — Helianthus cf. strumosus L. — 10 images
hawkweed oxtongue — Picris hieracioides L. — 2 images
hawthorn — Crataegus sp. — 11 images
hayscented fern — Dennstaedtia punctilobula (Michaux) T.Moore — 59 images
heartleaf four-o'clock, heartleaf umbrellawort — Mirabilis nyctaginea (Michaux) MacMillan — 13 images
heartleaf paper birch, mountain paper birch — Betula cordifolia Regel — 6 images
heartleaf willow — Salix eriocephala Michaux — 59 images
heath white aster, squarrose white aster — Aster ericoides (L.) G.L.Nesom var. ericoides — 11 images
hedge maple, field maple — Acer campestre L. — 3 images
hedge mustard — Sisymbrium officinale (L.) Scop. — 12 images
hedgehog woodrush — Luzula echinata (Small) Hermann — 3 images
helleborine — Epipactis helleborine (L.) Crantz — 31 images
herb-Robert, Robert's geranium — Geranium robertianum L. — 23 images
highbush blackberry, Pennsylvania blackberry — Rubus pensilvanicus Poiret — 6 images
highbush blueberry — Vaccinium corymbosum L. — 73 images
hightide bush, saltmarsh elder, maritime marsh elder, bigleaf marsh elder — Iva frutescens ssp. oraria L. — 23 images
hillside blueberry, dryland blueberry, early sweet blueberry — Vaccinium pallidum Ait. — 57 images
hispid hedgenettle, hairy hedgenettle — Stachys hispida Pursh — 15 images
hoary alyssum — Berteroa incana (L.) DC. — 15 images
hoary bittercress, hairy rock-cress — Cardamine hirsuta L. — 42 images
hoary mock-orange, Ozark mock-orange — Philadelphus pubescens Loisel. — 4 images
hoary mountain mint — Pycnanthemum incanum (L.) Michx. — 5 images
hoary rockrose — Helianthemum bicknellii (Fern.) Barnh. — 30 images
hoary willow — Salix candida Fluegge ex Willd. — 19 images
hobblebush, witch-hobble — Viburnum lantanoides Michaux — 25 images
hog peanut — Amphicarpaea bracteata (L.) Fern. — 20 images
hollow-stemmed Joe-Pye-weed — Eupatorium fistulosum (Barratt) E.E.Lamont — 30 images
honey locust — Gleditsia triacanthos L. — 19 images
hooked buttercup, hooked crowfoot — Ranunculus recurvatus Poiret var. recurvatus — 31 images
hop sedge — Carex lupulina Muhl. ex Willd. — 21 images
horned bladderwort, naked bladderwort — Utricularia cornuta Michaux — 38 images
horned nightshade, buffalobur nightshade, buffalobur — Solanum rostratum Dunal — 11 images
horned pondweed — Zannichellia palustris L. — 5 images
hornwort, coontail — Ceratophyllum demersum L. — 15 images
horse chestnut — Aesculus hippocastanum L. — 18 images
horsenettle — Solanum carolinense L. var. carolinense — 23 images
horseweed, hogweed, butterweed — Conyza canadensis (L.) Carr. — 39 images
hound's tongue — Cynoglossum officinale L. — 5 images
humped bladderwort — Utricularia gibba L. — 19 images
hybrid barberry — Berberis ×ottawensis C.K.Schneid. — 4 images
hybrid bittersweet — Celastrus orbiculatus × C. scandens — 5 images
hybrid blanket flower (G. aristata × G. pulchella) — Gaillardia ×grandiflora hort. — 3 images
hybrid bluebell — Hyacinthoides ×variabilis P.D.Sell — 12 images
hybrid blueberry — Vaccinium ×atlanticum Bicknell — 13 images
hybrid bushclover — Lespedeza ×longifolia DC. — 3 images
hybrid cattail: T. angustifolia × T. latifolia — Typha ×glauca Gordon — 11 images
hybrid dogbane — Apocynum ×floribundum Greene — 5 images
hybrid flowering dogwood — Cornus florida × C. kousa — 3 images
hybrid honeysuckle, whitebell honeysuckle — Lonicera ×bella Zabel — 35 images
hybrid linden — Tilia cordata × T. mongolica — 6 images
hybrid primrose — Primula ×polyantha Mill. — 4 images
hybrid rhododendron — Rhododendron maximum × R. catawbiense — 3 images
hybrid smoketree — Cotinus ×'Grace' — 11 images
hybrid spiderwort — Tradescantia ohiensis × T. virginiana — 20 images
hybrid sundew — Drosera ×eloisiana T.S.Bailey — 14 images
hybrid viburnum (twistwood × leatherleaf) — Viburnum ×rhytidophylloides Sur. — 7 images
hybrid willow — Salix pentandra x S. ×fragilis — 25 images
hyssop-leaved boneset — Eupatorium hyssopifolium L. — 23 images
hyssop-leaved hedgenettle, rough hedgenettle — Stachys hyssopifolia Michaux — 39 images
incomparable daffodil — Narcissus ×incomparabilis Mill. — 4 images
indigo bush, false indigo — Amorpha fruticosa L. — 21 images
inflated sedge — Carex vesicaria L. — 7 images
inkberry, inkberry holly — Ilex glabra (L.) A.Gray — 34 images
intermediate shadbush, intermediate serviceberry — Amelanchier ×intermedia Spach — 61 images
intermediate wood fern — Dryopteris intermedia (Muhl. ex Willd.) A.Gray — 40 images
interrupted fern — Osmunda claytoniana L. — 37 images
ironwood, hornbeam — Carpinus caroliniana Walter — 26 images
jagged chickweed — Holosteum umbellatum L. ssp. umbellatum — 20 images
jetbead, white kerria — Rhodotypos scandens (Thunb.) Makino — 25 images
jeweled wakerobin — Trillium simile Gleason — 5 images
jewelweed — Impatiens capensis Meerb. — 28 images
jimsonweed, Jamestown weed — Datura stramonium L. — 42 images
jointed rush — Juncus articulatus L. — 7 images
jointweed — Polygonella articulata L. — 36 images
jumpseed — Polygonum virginiana (L.) Gaertner — 24 images
katsura tree — Cercidiphyllum japonicum Zieb. & Zucc. — 26 images
keeled garlic, witch's garlic — Allium carinatum L. — 8 images
kidney-leaved buttercup, small-flowered crowfoot — Ranunculus abortivus L. — 29 images
king-devil, meadow hawkweed — Hieracium pratense Tausch — 9 images
kudzu — Pueraria montana var. lobata (Willd.) Maesen & S.Almeida — 12 images
lace lovegrass, lace grass — Eragrostis capillaris (L.) Nees — 4 images
lady's thumb, spotted lady's thumb — Polygonum persicaria S.F.Gray — 28 images
lanceleaf tickseed — Coreopsis lanceolata L. — 32 images
large crabgrass — Digitaria sanguinalis (L.) Scop. — 30 images
large floating bladderwort, swollen bladderwort, inflated bladderwort — Utricularia inflata Walter — 33 images
large purple fringed orchid — Platanthera grandiflora (Bigelow) Lindley — 6 images
large pussy willow — Salix discolor Muhl. — 76 images
large whorled pogonia — Isotria verticillata (Willd.) Raf. — 11 images
large-flowered mullein — Verbascum densiflorum Bertol. — 5 images
large-leaved Dutchman's pipe — Aristolochia macrophylla (Lam.) C.F.Reed — 3 images
large-leaved aster — Aster macrophyllus (L.) Cass. — 22 images
largeflower heartleaf — Hexastylis shuttleworthii (Britten & Baker f.) Small — 22 images
largepod pinweed — Lechea intermedia Leggett ex Britt. var. intermedia — 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 — 17 images
largethorn hawthorn — Crataegus macracantha Lodd. ex Loud. — 3 images
lavender bladderwort, northeastern bladderwort, resupinate bladderwort — Utricularia resupinata B.D.Greene ex Bigelow — 23 images
lax soft rush — Juncus effusus ssp. solutus (Fern. & Wieg.) Hämet-Ahti — 13 images
leafless watermilfoil — Myriophyllum tenellum Bigelow — 14 images
leafy spurge — Euphorbia esula L. — 13 images
leafy-bracted beggarticks — Bidens tripartita L. — 4 images
leatherleaf viburnum — Viburnum rhytidophyllum Hemsl. — 2 images
leatherleaf, cassandra — Chamaedaphne calyculata (L.) Moench — 54 images
leatherwood — Dirca palustris L. — 9 images
lemon balm — Melissa officinalis L. — 23 images
lesser burdock, common burdock — Arctium minus Bernh. — 11 images
lesser celandine, pilewort — Ranunculus ficaria L. — 24 images
lesser centaury — Centaurium erythraea Raf. — 1 images
lesser snakeroot, aromatic snakeroot — Ageratina aromatica (L.) Spach — 6 images
lesser swinecress — Coronopus didymus L. — 16 images
lesser water plantain, southern water plantain — Alisma subcordatum Raf. — 24 images
lesser waterwort — Elatine minima (Nutt.) Fischer & C.A.Meyer — 37 images
licorice goldenrod, sweet goldenrod — Solidago odora Aiton — 38 images
lily-of-the-valley — Convallaria majalis L. — 34 images
lilyturf — Liriope graminifolia (L.) Baker — 6 images
linden viburnum, linden arrowwood — Viburnum dilatatum Thunb. — 21 images
linear-leaved panic grass — Dichanthelium linearifolium (Scribner) Gould — 11 images
lion's foot, lion's foot rattlesnake root — Prenanthes serpentaria (Pursh) Hooker — 11 images
little bluestem — Schizachyrium scoparium (Michaux) Nash var. scoparium — 25 images
little brown jug — Hexastylis arifolia (Michaux) Small — 7 images
little evening primrose, little sundrops — Oenothera perennis L. — 11 images
little hopclover — Trifolium dubium Sibth. — 10 images
little ladies' tresses — Spiranthes tuberosa Raf. — 10 images
little merrybells — Uvularia sessilifolia L. — 45 images
little mouse-ear chickweed — Cerastium semidecandrum L. — 23 images
little ricegrass — Oryzopsis pungens (Torrey ex Spreng.) Dorn — 21 images
little sweet Betsy — Trillium cuneatum Raf. — 3 images
live-forever — Sedum telephium (L.) H.Ohba ssp. telephium — 15 images
livid amaranth — Amaranthus blitum ssp. emarginatus (Moq. ex Uline & Bray) Carreter — 7 images
long-beaked Pennsylvania sedge — Carex lucorum Willd. ex Link — 16 images
long-beaked baldsedge — Rhynchospora scirpoides (Torrey) A.Gray — 56 images
long-culmed sedge — Carex folliculata L. — 21 images
long-leaved bluet — Houstonia longifolia Gaertn. — 17 images
long-leaved groundcherry — Physalis longifolia var. subglabrata (Mackenzie & Bush) Cronq. — 15 images
long-leaved pondweed — Potamogeton nodosus Poiret — 4 images
long-leaved starwort — Stellaria longifolia Muhl. ex Willd. var. longifolia — 6 images
long-spiked bulrush — Scirpus novae-angliae (Britton) S.G.Smith — 6 images
long-spurred violet — Viola rostrata Pursh — 5 images
long-stalked aster, bushy aster, rice-button aster — Aster dumosus (L.) G.L.Nesom — 15 images
long-stalked monkeyflower, square-stemmed monkeyflower, blue monkeyflower, Allegheny monkeyflower — Mimulus ringens L. — 17 images
long-tailed wild ginger, western wild ginger — Asarum caudatum Lindl. — 6 images
longbranch frostweed, Canadian frostweed — Helianthemum canadense (L.) Britton — 52 images
loose-flowered woodland sedge — Carex laxiflora Lam. — 27 images
lopsided rush — Juncus secundus Beauv. ex Poiret — 5 images
love-lies-bleeding, purple amaranth — Amaranthus caudatus L. — 7 images
low cudweed — Gnaphalium uliginosum L. — 9 images
low frostweed, low rockrose — Helianthemum propinquum (Bicknell) Bicknell — 32 images
low hairy groundcherry — Physalis pubescens L. var. integrifolia (Dunal) Waterfall — 11 images
low hopclover — Trifolium campestre Schreber — 6 images
lowbush blueberry — Vaccinium angustifolium Ait. — 35 images
lowly watermilfoil — Myriophyllum humile (Raf.) Morong — 47 images
lucerne, blue alfalfa — Medicago sativa L. — 5 images
mad-dog skullcap, blue skullcap — Scutellaria lateriflora L. — 14 images
mahaleb cherry — Prunus mahaleb L. — 3 images
maiden pink — Dianthus deltoides L. — 4 images
maidenhair spleenwort — Asplenium trichomanes L. — 7 images
maleberry — Lyonia ligustrina (L.) DC. — 62 images
maple-leaf viburnum — Viburnum acerifolium L. — 24 images
mapleleaf goosefoot — Chenopodium simplex (Torrey) Raf. — 7 images
marginal wood fern — Dryopteris marginalis (L.) A.Gray — 50 images
marijuana, hemp — Cannabis sativa L. — 2 images
marsh St. John's-wort — Triadenum virginicum (L.) Raf. — 29 images
marsh bentgrass, carpet bentgrass, creeping bentgrass, creeping bent, spreading bent, fiorin — 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. — 16 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 speedwell, narrow-leaved speedwell — Veronica scutellata L. — 6 images
marsh spikerush — Eleocharis palustris (L.) Roemer & Schultes — 20 images
marsh willowherb — Epilobium palustre L. — 3 images
marsh yellowcress — Rorippa palustris (Desv.) Rydb. — 34 images
matted pearlwort, birdseye — Sagina procumbens L. — 12 images
mayapple, wild mandrake — Podophyllum peltatum L. — 11 images
meadow blue-eyed grass — Sisyrinchium montanum var. crebrum Fern. — 10 images
meadow bulrush — Scirpus hattorianus Makino — 12 images
meadow cranesbill, meadow geranium — Geranium pratense L. — 2 images
meadow evening primrose, hairy sundrops — Oenothera pilosella Raf. ssp. pilosella — 2 images
meadow fescue, meadow ryegrass — Festuca pratensis (Hudson) Beauv. — 5 images
meadow foxtail — Alopecurus pratensis L. — 9 images
meadow horsetail — Equisetum pratense Ehrh. — 3 images
meadow sedge — Carex granularis Muhl. ex Willd. — 3 images
meadow spikemoss — Selaginella apoda (L.) Spring — 9 images
medicinal sage — Salvia officinalis L. — 2 images
memorial rose — Rosa luciae Franch. & Rochebr. ex Crépin — 20 images
merrybells, large-flowered bellwort — Uvularia grandiflora Small — 7 images
mile-a-minute — Polygonum perfoliatum (L.) H.Gross — 39 images
milk parsley — Peucedanum palustre (L.) Moensch — 11 images
millet sedge — Carex panicea L. — 11 images
mockernut hickory — Carya tomentosa (Lam. ex Poiret) Nutt. — 27 images
moonseed — Menispermum canadense L. — 3 images
mosquito fern — Azolla caroliniana Willd. — 4 images
moss phlox — Phlox subulata L. ssp. subulata — 5 images
moth mullein — Verbascum blattaria L. — 18 images
motherwort — Leonurus cardiaca L. — 23 images
mountain fetterbush — Leucothoe recurva (Buckley) Britton — 15 images
mountain fleece, red bistort — Polygonum amplexicaule Vahl — 10 images
mountain knapweed — Centaurea montana L. — 2 images
mountain laurel — Kalmia latifolia L. — 63 images
mountain maple — Acer spicatum Lam. — 16 images
mountain wood fern — Dryopteris campyloptera (Kunze) Clarkson — 1 images
mountain woodsorrel — Oxalis montana Raf. — 12 images
mouse-ear cress — Arabidopsis thaliana (L.) Heynh. — 51 images
mouse-ear hawkweed — Hieracium pilosella L. — 8 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. — 23 images
mullein pink — Lychnis coronaria (L.) Murray — 11 images
multiflora rose — Rosa multiflora Thunb. ex Murray — 39 images
multiflora rose hybrid — Rosa chinensis × R. multiflora (Polyantha Group) — 17 images
musk mallow — Malva moschata L. — 9 images
musk willow, Persian willow — Salix aegyptiaca L. — 15 images
naked ticktrefoil, naked-flower ticktrefoil — Desmodium nudiflorum (L.) H.Ohashi & R.R.Mill — 7 images
nannyberry, sweet viburnum — Viburnum lentago L. — 41 images
narrow beech fern, northern beech fern — Phegopteris connectilis (Michaux) Watt — 16 images
narrow-fruited beaksedge, inundated hornsedge — Rhynchospora inundata (Oakes) Fern. — 15 images
narrow-leaved bushclover — Lespedeza angustifolia (Pursh) Ell. — 9 images
narrow-leaved cattail — Typha angustifolia L. — 16 images
narrow-leaved cultivar of glossy buckthorn — Rhamnus alnus 'Asplenifolia' 'Asplenifolia' — 4 images
narrow-leaved loosestrife — Lysimachia hybrida Michaux — 11 images
narrow-leaved peppergrass, stinking peppergrass — Lepidium ruderale L. — 4 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 white-topped aster — Sericocarpus linifolius (L.) B.S.P. — 14 images
narrow-leaved willowherb — Epilobium leptophyllum Raf. — 4 images
narrowleaf bittercress, bushy rock-cress — Cardamine impatiens L. — 16 images
narrowleaf plantain lily — Hosta lancifolia Tratt. — 3 images
needle spikerush — Eleocharis acicularis (L.) Roemer & Schultes — 37 images
netted chain fern — Woodwardia areolata (L.) T.Moore — 39 images
nimblewill — Muhlenbergia schreberi J.F.Gmelin — 6 images
ninebark — Physocarpus opulifolius (L.) Maxim. — 3 images
nipplewort — Lapsana communis L. — 23 images
nodding bur-marigold, nodding beggarticks — Bidens cernua L. — 32 images
nodding ladies' tresses — Spiranthes cernua (L.) L.C.Richard — 20 images
nodding smartweed, willowweed smartweed, dockweed smartweed, pale smartweed — Polygonum lapathifolium (L.) S.F.Gray — 5 images
nodding thistle, nodding plumeless thistle, musk thistle — Carduus nutans L. — 28 images
nodding trillium — Trillium cernuum L. var. cernuum — 18 images
north wind bog orchid, northern green orchid — Platanthera aquilonis Sheviak — 3 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 — Viburnum dentatum var. lucidum Ait. — 32 images
northern awned sedge — Carex gynandra Schwein. — 8 images
northern bladderwort, flat-leaved bldderwort — Utricularia intermedia Hayne — 31 images
northern blueflag — Iris versicolor L. — 43 images
northern bog clubmoss — Lycopodiella inundata (L.) Holub — 12 images
northern bush honeysuckle — Diervilla lonicera P.Miller — 20 images
northern clubmoss, round-branched groundpine — Lycopodium dendroideum (Michaux) A.Haines — 5 images
northern coastal violet, Britton's violet — Viola brittoniana Pollard — 9 images
northern cross-leaved milkwort — Polygala cruciata (Fern. & Schub.) A.Haines — 27 images
northern dewberry — Rubus flagellaris Willd. — 32 images
northern fimbry, autumn fimbry — Fimbristylis autumnalis (L.) Roemer & Schultes — 24 images
northern horsebalm, stoneroot — Collinsonia canadensis L. — 4 images
northern ladyfern — Athyrium filix-femina var. angustum (Willd.) C.Presl — 45 images
northern maidenhair fern — Adiantum pedatum L. — 13 images
northern meadowbeauty, wingstem meadowpitchers — Rhexia virginica L. — 57 images
northern prickly ash, common prickly ash — Zanthoxylum americanum P.Miller — 13 images
northern prickly 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 (Raf.) Raf. — 5 images
northern snailseed pondweed — Potamogeton spirillus Tuckerman — 4 images
northern stalked sedge — Carex debilis var. rudgei L.H.Bailey — 9 images
northern three-lobed bedstraw, tricleft bedstraw — Galium trifidum L. ssp. trifidum — 3 images
northern tickseed sunflower — Bidens coronata (Michaux) Britton — 18 images
northern waterweed — Elodea canadensis Michaux — 11 images
northern wild senna — Senna hebecarpa (Fern.) Irwin & Barneby — 33 images
northern wood sedge, drooping wood sedge — Carex arctata Boott ex Hooker — 3 images
northern yellow-eyed grass — Xyris montana Ries — 8 images
oak fern — Gymnocarpium dryopteris (L.) Newman — 5 images
oakleaf goosefoot — Chenopodium glaucum L. var. glaucum — 3 images
oakleaf hydrangea — Hydrangea quercifolia W.Bartram — 3 images
oblique-leaf dogwood, pale dogwood — Cornus amomum var. schuetzeana (C.A.Mey.) A.Haines — 24 images
olive spikerush — Eleocharis flavescens var. olivacea (Torrey) Gleason — 29 images
olive willow, rosemary willow — Salix elaeagnos Scop. — 3 images
one-flowered cancer-root, ghost pipe — Orobanche uniflora L. — 22 images
one-nerved woodland sedge — Carex leptonervia (Fern.) Fern. — 8 images
one-seeded bur cucumber — Sicyos angulatus L. — 14 images
orange daylily — Hemerocallis fulva (L.) L. — 30 images
orange hawkweed — Hieracium aurantiacum L. — 10 images
orange-fruited horse gentian, early horse gentian, wild coffee — Triosteum aurantiacum Bicknell — 21 images
orange-fruited spikerush — Eleocharis elliptica Kunth — 21 images
orangegrass, pineweed — Hypericum gentianoides (L.) B.S.P. — 25 images
orchard apple, common apple — Malus pumila P.Miller — 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
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 — Cornus alternifolia (L.f.) Small — 27 images
painted trillium — 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 (Torrey) Church var. pallida — 11 images
pale sedge — Carex pallescens L. — 18 images
pale spiked lobelia, spiked lobelia — Lobelia spicata Lam. — 1 images
pale swallowwort — Cynanchum rossicum (Kleopov) Borhidi — 14 images
palmate-leaved violet, three-lobed violet — Viola palmata var. triloba L. var. palmata — 12 images
panicled screwstem — Bartonia paniculata (Michaux) Muhl. ssp. paniculata — 6 images
panicled ticktrefoil — Desmodium paniculatum (L.) DC. — 11 images
paper birch — Betula papyrifera Marsh. — 43 images
paper birch × gray birch — Betula papyrifera Marsh. × B. populifolia Marsh. — 15 images
papillose nutsedge — Scleria pauciflora var. caroliniana (Willd.) Wood — 23 images
parasol sedge, short-beaked sand sedge — Carex umbellata Schkuhr ex Willd. — 8 images
partridge pea — Chamaecrista fasciculata (Michaux) Greene — 20 images
partridgeberry — Mitchella repens L. — 21 images
pasture thistle — Cirsium 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
pear-leaved crabapple — Malus prunifolia (Willd.) Borkh. — 7 images
pearlwort — Sagina sp. — 3 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 flax, blue flax — Linum perenne L. — 9 images
perennial glasswort — Salicornia virginica Michaux — 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 ryegrass — Lolium perenne L. — 28 images
perennial saltmarsh aster, large-flowered saltmarsh aster — Aster tenuifolius (L.) G.L.Nesom var. tenuifolium — 31 images
perplexing ticktrefoil, Dillen's ticktrefoil, puzzling ticktrefoil — Desmodium perplexum Schubert — 3 images
pickerelweed — Pontederia cordata L. — 41 images
pignut hickory — Carya glabra (P.Miller) Sweet — 30 images
pigweed, lamb's quarters — Chenopodium album L. — 31 images
pigweed, redroot amaranth — Amaranthus retroflexus L. — 2 images
pin cherry, fire cherry — Prunus pensylvanica L.f. var. pensylvanica — 38 images
pin oak — Quercus palustris Muenchh. — 31 images
pineapple weed — Matricaria discoidea DC. — 3 images
pinebarren golden heather — Hudsonia ericoides L. — 45 images
pinebarrens bracken fern — Pteridium aquilinum var. pseudocaudatum (Clute) A.Heller — 5 images
pinesap, false beechdrops — Monotropa hypopitys Crantz — 17 images
pink azalea — Rhododendron periclymenoides (Michaux) Shinners — 8 images
pink lady's slipper — Cypripedium acaule Aiton — 17 images
pink multiflora rose — Rosa multiflora var. cathayensis Rehder & E.H.Wilson — 13 images
pink shinleaf — Pyrola asarifolia Michaux — 2 images
pink tickseed — Coreopsis rosea Nutt. — 41 images
pinkweed, smartweed, Pennsylvania smartweed — Polygonum pensylvanicum (L.) G.Maza — 35 images
pipewort, white buttons — Eriocaulon aquaticum (Hill) Druce — 44 images
pipsissewa — Chimaphila umbellata ssp. cisatlantica (Blake) Hultén — 9 images
pitch pine — Pinus rigida P.Miller — 132 images
plantain-leaf sedge — Carex plantaginea Lam. — 6 images
plantain-leaved pussytoes — Antennaria plantaginifolia (L.) Richardson — 19 images
podgrass — Scheuchzeria palustris L. — 21 images
poet's daffodil — Narcissus poeticus L. — 3 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
pondshore arrowhead, terete arrowhead — Sagittaria teres S.Watson — 60 images
pondshore dodder — Cuscuta coryli Engelm. — 21 images
pondshore flatsedge — Cyperus dentatus Torrey — 27 images
pondshore muhly — Muhlenbergia uniflora (Muhl.) Fern. — 27 images
pondshore nutsedge — Scleria reticularis Michaux — 39 images
pondshore panic grass — Dichanthelium acuminatum var. implicatum (Scribn.) Freckmann & Lelong — 8 images
pondshore pennywort, water pennywort — Hydrocotyle umbellata L. — 27 images
pondshore rush — Juncus pelocarpus E.Meyer — 30 images
pondshore smartweed — Polygonum puritanorum (Fern.) Soják — 18 images
pondshore water horehound, sessile-leaved water horehound — Lycopus amplectens Raf. — 33 images
post oak — Quercus stellata Wangenh. — 12 images
poverty grass — Aristida dichotoma Michaux — 29 images
poverty grass — Sporobolus vaginiflorus (Torrey ex A.Gray) Wood var. vaginiflorus — 12 images
prairie ironweed — Vernonia fasciculata Michaux — 18 images
prairie needlegrass — Aristida oligantha Michaux — 5 images
prairie willow, upland willow — Salix humilis Marsh. — 86 images
prickly comfrey — Symphytum asperum Lepechin — 4 images
prickly lettuce — Lactuca serriola L. — 32 images
prickly or seabeach saltwort — Salsola kali L. ssp. kali — 30 images
prickly sedge — Carex 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, or foxglove-tree — Paulownia tomentosa (Thunb.) Sieb. & Zucc. ex Steudel — 10 images
princess-pine, tree clubmoss — Lycopodium obscurum (L.) A.Haines — 23 images
prostrate amaranth, tumbleweed — Amaranthus blitoides S.Watson — 9 images
prostrate or creeping juniper — Juniperus horizontalis Moench — 9 images
prostrate ticktrefoil, round-leaved trailing ticktrefoil — Desmodium rotundifolium DC. — 10 images
prostrate vervain — Verbena bracteata Lag. & Rodr. — 12 images
pumpkin — Cucurbita pepo L. — 1 images
purple avens — Geum rivale L. — 8 images
purple bergamot — Monarda media Willd. — 2 images
purple bladderwort — Utricularia purpurea Walter — 36 images
purple boxelder — Acer negundo var. violaceum (Kirsch.) Jaeg. — 23 images
purple chokeberry — Aronia ×prunifolia (Lindl.) Spach — 52 images
purple coneflower — Echinacea purpurea (L.) Moench — 12 images
purple corydalis — Corydalis solida (L.) Clairv. — 3 images
purple crownvetch — Coronilla varia (L.) Lassen — 9 images
purple deadnettle, red deadnettle — Lamium purpureum L. var. purpureum — 22 images
purple false foxglove, purple gerardia — Agalinis purpurea (L.) Pennell — 33 images
purple loosestrife — Lythrum salicaria L. — 39 images
purple lovegrass — Eragrostis spectabilis (Pursh) Steudel — 18 images
purple milkweed — Asclepias purpurascens L. — 5 images
purple milkwort, common milkwort — Polygala sanguinea L. — 17 images
purple morning glory, common morning glory — Ipomoea purpurea (L.) Roth — 9 images
purple pitcherplant — Sarracenia purpurea L. — 38 images
purple sandgrass — Triplasis purpurea (Walter) Chapman — 23 images
purple-flowering raspberry, thimbleberry — Rubus odoratus L. — 14 images
purpleleaf sand cherry — Prunus ×cistena (N.E.Hansen) Koehne — 1 images
purslane speedwell, neckweed — Veronica peregrina ssp. peregrina L. ssp. peregrina — 7 images
pussy willow × upland willow — Salix ×conifera Wangenh. (pro sp.) — 9 images
quagmire yellow-eyed grass — Xyris smalliana Nash — 7 images
queen Anne's lace, wild carrot — Daucus carota L. — 16 images
quickweed, gallant soldiers — Galinsoga parviflora Cav. — 2 images
quillwort (either E. engelmannii or E. ×foveolata) — Isoetes sp. — 10 images
rabbitfoot clover — Trifolium arvense L. — 17 images
racemed milkwort, bitter milkwort — Polygala polygama Walter — 27 images
ragged fringed orchid — Platanthera lacera (Michx.) G.Don — 9 images
ragged robin — Lychnis flos-cuculi L. ssp. flos-cuculi — 9 images
rampion bellflower, creeping bellflower — Campanula rapunculoides L. — 13 images
rattail annual fescue, mousetail annual fescue — Vulpia myuros (L.) K.C.Gmelin — 11 images
rattlebox — Crotalaria sagittalis L. — 21 images
rattlesnake fern — Botrychium virginianum (L.) Sw. — 13 images
rattlesnake mannagrass, rattlesnake grass — Glyceria canadensis (Michaux) Trin. — 13 images
rattlesnake weed — Hieracium venosum L. — 13 images
red baneberry — Actaea rubra (Aiton) Willd. — 21 images
red barrenwort, red bishop's hat — Epimedium ×rubrum C.Morren — 6 images
red bartsia — Odontites vernus ssp. serotinus (Dumort.) Corb. — 9 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 fescue — Festuca rubra L. — 2 images
red maple — Acer rubrum L. — 117 images
red osier, red-stemmed dogwood — Cornus sericea (L.) Holub — 8 images
red pine — Pinus resinosa Ait. — 23 images
red spruce — Picea rubens Sarg. — 19 images
red trillium, purple trillium — Trillium erectum L. — 29 images
red-edged flatsedge — Cyperus diandrus Torrey — 13 images
red-seeded dandelion — Taraxacum laevigatum (Willd.) DC. — 7 images
red-stemmed bulrush — Scirpus microcarpus J. & K.Presl — 2 images
red-veined dock, bitter dock — Rumex obtusifolius L. — 28 images
redbud — Cercis canadensis L. — 14 images
redleaf rose — Rosa glauca Pourret — 9 images
redroot — Lachnanthes caroliniana (Lam.) Dandy — 18 images
redroot flatsedge — Cyperus erythrorhizos Muhl. — 8 images
redstem storksbill, redstem filaree, alfileria — Erodium cicutarium (L.) L'Hér. ex Aiton ssp. cicutarium — 6 images
reed — Phragmites sp. — 17 images
reed bluejoint — Calamagrostis cinnoides (Muhl.) W.Barton — 22 images
reed canarygrass — Phalaris arundinacea L. — 41 images
reflexed sedge — Carex retroflexa Muhl. ex Willd. — 7 images
rhodora — Rhododendron canadense (L.) Torrey — 18 images
rhubarb — Rheum rhabarbarum L. — 4 images
ribbed sedge — Carex virescens Muhl. ex Willd. — 18 images
rice cutgrass — Leersia oryzoides (L.) Sw. — 42 images
ridged goosefoot, pygmy goosefoot — Chenopodium 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 Michaux — 5 images
riverside sedge — Carex torta Boott ex Tuckerman — 9 images
robin's plantain fleabane — Erigeron pulchellus Michaux — 11 images
rock harlequin, pale corydalis, pink corydalis — Corydalis sempervirens (L.) Borkh. — 28 images
rock knotweed — Polygonum tenue Michaux — 12 images
rock spikemoss — Selaginella rupestris (L.) Spring — 16 images
rockcap fern, common rock polypody — Polypodium virginianum L. — 39 images
rose pogonia — Pogonia ophioglossoides (L.) Ker Gawler — 17 images
rose twisted-stalk, sessile-leaf twisted-stalk, rose mandarin, rosybells — Streptopus roseus (Aiton) Reveal — 21 images
rose-gold pussy willow — Salix gracilistyla Miq. — 6 images
rough aster — Aster radula (Aiton) Nesom — 13 images
rough avens, floodplain avens, herb-bennet avens — Geum laciniatum Murray — 7 images
rough bedstraw — Galium asprellum L. — 6 images
rough bentgrass, winter bent, hairgrass, northern ticklegrass — Agrostis scabra Willd. — 17 images
rough bluegrass — Poa trivialis L. — 5 images
rough boneset, verbena boneset — Eupatorium pilosum Walter — 36 images
rough cottongrass — Eriophorum tenellum Nutt. — 2 images
rough fleabane — Erigeron strigosus L. — 14 images
rough hawkweed — Hieracium scabrum Michaux — 28 images
rough-leaved goldenrod — Solidago patula Muhl. ex Willd. ssp. patula — 4 images
round-fruited panic grass — Dichanthelium sphaerocarpon (Ell.) Gould — 10 images
round-fruited seedbox — Ludwigia sphaerocarpa Elliott — 15 images
round-fruited short-scaled sedge — Carex deweyana Schweinitz — 7 images
round-fruited yellowcress — Rorippa globosa (Turcz. ex Fischer & Meyer) Hayek — 4 images
round-headed bushclover — Lespedeza capitata Michx. — 17 images
round-leaved dogwood, talus dogwood — Cornus 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
roundleaf goldenrod — Solidago patula ssp. strictula (Torrey & A.Gray) Semple — 5 images
roundleaf sundew — Drosera rotundifolia L. — 28 images
rue anemone — Thalictrum thalictroides (L.) Eames & Boivin — 9 images
running clubmoss, common clubmoss — Lycopodium clavatum L. — 13 images
running stonecrop — Sedum sarmentosum Bunge — 6 images
rusty and ash willow with hybrids — Salix atrocinerea/cinerea complex — 26 images
rusty willow — Salix atrocinerea Brotero — 115 images
rusty willow x upland willow — Salix atrocinerea x S. humilis — 13 images
rusty willow × American pussy willow — Salix atrocinerea × S. discolor — 8 images
rusty willow × Bebb's willow — Salix atrocinerea × S. bebbiana — 20 images
rusty willow × dwarf upland willow — Salix atrocinerea × S. occidentalis — 5 images
rye — Secale cereale L. — 4 images
sagebrush — Artemisia tridentata Nutt. — 8 images
sago false pondweed, sago pondweed — Stuckenia pectinata (L.) Boerner — 2 images
saline spikerush, one-glumed spikerush — Eleocharis uniglumis (Link) Schultes — 21 images
sallow sedge — Carex lurida Wahlenb. — 35 images
saltgrass, saltmarsh spikegrass — Distichlis spicata (L.) Greene — 16 images
salthay, saltmeadow grass, cordgrass — Spartina patens (Aiton) Muhl. — 23 images
saltmarsh arrowgrass — Triglochin maritimum L. — 25 images
saltmarsh bulrush — Scirpus robustus (Pursh) Soják — 21 images
saltmarsh false foxglove, seaside gerardia — Agalinis maritima (Raf.) Raf. ssp. maritima — 18 images
saltmarsh fleabane — Pluchea odorata var. succulenta (Fern.) Cronq. — 22 images
saltmarsh knotweed — Polygonum ramosissimum (Small) Costea & Tardif — 13 images
saltmarsh plantain — Plantago intermedia DC. — 17 images
saltmarsh rush — Juncus gerardii Loisel — 22 images
saltmarsh sand spurrey — Spergularia salina (L.) Griseb. — 16 images
saltmarsh sea blite — Suaeda maritima (L.) Dumort. ssp. maritima — 25 images
saltmarsh sedge — Carex paleacea Schreber ex Wahlenb. — 7 images
saltmarsh silverweed, Eged's silverweed — Potentilla egedei var. groenlandica (Wormsk.) Rydberg — 11 images
saltmarsh spikerush, beaked spikerush — Eleocharis rostellata (Torrey) Torrey — 20 images
saltmarsh straw sedge — Carex hormathodes Fernald — 17 images
saltmarsh threesquare, Olney's threesquare — Scirpus americanus (Pers.) Volk. ex Schinz & R.Keller — 9 images
saltmarsh wild rye — Elymus virginicus var. halophilus (Bicknell) Wieg. — 18 images
saltpond pennywort — Hydrocotyle verticillata Thunb. — 3 images
saltwater cordgrass — Spartina alterniflora Loisel — 32 images
sand beadgrass — Paspalum setaceum var. psammophilum (Nash) D.Banks — 12 images
sand cherry — Prunus susquehanae Willd. — 34 images
sand cherry, sandbar cherry — Prunus depressa Pursh — 7 images
sand flatsedge — Cyperus lupulinus ssp. macilentus (Fern.) Marcks — 15 images
sand sedge — Carex tonsa var. rugosperma (Mackenzie) W.J.Crins — 6 images
sand violet — Viola adunca J.E.Sm. var. adunca — 15 images
sandbar willow — Salix exigua ssp. interior (Rowlee) Cronq. — 17 images
sandplain blue-eyed grass — Sisyrinchium fuscatum Bicknell — 5 images
sandplain false foxglove, sandplain gerardia — Agalinis acuta Pennell — 8 images
sandplain flax — Linum intercursum Bicknell — 16 images
sassafras — Sassafras albidum (Nutt.) Nees — 77 images
saucer magnolia, Chinese magnolia — Magnolia ×soulangeana Soul.-Bod. — 8 images
sawbrier, wild sarsaparilla — Smilax glauca Walter — 30 images
scarlet beebalm, rimson beebalm — Monarda didyma L. — 1 images
scarlet oak — Quercus coccinea Muenchh. — 42 images
scarlet pimpernel — Anagallis arvensis L. — 17 images
scrub oak, bear oak — Quercus ilicifolia Wangenh. — 94 images
sea lavender — Limonium carolinianum (Walt.) Britt. — 43 images
sea lovage, Scotch lovage — Ligusticum scothicum L. — 4 images
sea milkwort — Glaux maritima (L.) Galasso, Banfi & Soldano — 9 images
sea rocket — Cakile edentula (Bigelow) Hooker ssp. edentula var. edentula — 22 images
seabeach dock, white dock — Rumex pallidus Bigelow — 4 images
seabeach orache — Atriplex cristata Humb. & Bonpl. ex Willd. — 11 images
seabeach pigweed — Chenopodium berlandieri var. macrocalycium (Aellen) Cronq. — 35 images
seabeach quackgrass — Elytrigia pungens (Vahl) Palla var. pungens — 2 images
seabeach quackgrass — Thinopyrum pycnanthum (Pers.) Barkworth — 3 images
seabeach sandwort — Honckenya peploides ssp. robusta (Fern.) Hultén — 25 images
seabeach sedge — Carex silicea Olney — 26 images
seaheath — Frankenia sp. — 5 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 bulrush — Scirpus maritimus (A.Nels.) T.Koyama — 18 images
seaside goldenrod — Solidago sempervirens L. — 50 images
seaside knotweed — Polygonum glaucum Nutt. — 10 images
seaside orache — Atriplex littoralis L. — 8 images
seaside plantain — Plantago maritima var. juncoides (Lam.) A.Gray — 27 images
seaside spurge — Euphorbia polygonifolia L. — 17 images
seaside wormwood, tall wormwood — Artemisia campestris ssp. caudata (Michaux) Hall & Clements — 19 images
seebeach needlegrass — Aristida tuberculosa Nutt. — 14 images
seedbox, squarepod — Ludwigia alternifolia L. — 31 images
sensitive fern — Onoclea sensibilis L. — 36 images
sensitive partridge pea — Chamaecrista nictitans (L.) Moench ssp. nictitans var. nictitans — 8 images
serrate blackberry — Rubus argutus Link — 3 images
several-veined sweetflag, American sweetflag — Acorus americanus (Raf.) Raf. — 2 images
shagbark hickory — Carya ovata (P.Miller) K.Koch — 31 images
sharp-fruited rush — Juncus acuminatus Michaux — 8 images
sharp-leaved goldenrod, cutleaf goldenrod, Atlantic goldenrod — Solidago arguta Aiton var. arguta — 10 images
sharp-lobed liverleaf, sharp-lobed liverwort — Hepatica nobilis var. acuta (DC.) G.Lawson — 4 images
sharp-scaled mannagrass — Glyceria acutiflora Torrey — 10 images
sheep fescue — Festuca ovina L. — 1 images
sheep laurel — Kalmia angustifolia L. — 49 images
sheep sorrel, red sorrel — Rumex acetosella (Pourett ex Lapeyr.) Akeroyd — 25 images
sheep's bit — Jasione montana L. — 43 images
shepherd's purse — Capsella bursa-pastoris (L.) Medicus — 22 images
shining firmoss, shining clubmoss — Huperzia lucidula (Michaux) Trev. — 13 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 fescue sedge — Carex brevior (Dewey) Mack. ex Lunell — 11 images
short-beaked baldsedge — Rhynchospora nitens (Vahl) A.Gray — 11 images
short-stalked bedstraw — Galium brevipes Fern. & Wiegand — 4 images
short-toothed mountain mint — Pycnanthemum muticum (Michaux) Pers. — 31 images
showy aster — Aster spectabilis (Aiton) Nesom — 52 images
showy goldenrod — Solidago speciosa Nutt. var. speciosa — 2 images
showy ticktrefoil, Canadian ticktrefoil — Desmodium canadense (L.) DC. — 22 images
showy yellow woodsorrel, southern yellow woodsorrel — Oxalis dillenii Jacq. — 32 images
shrubby St. John's-wort — Hypericum prolificum L. — 4 images
shrubby cinquefoil — Potentilla fruticosa ssp. floribunda Raf. — 13 images
sickle-leaved golden aster — Pityopsis falcata (Pursh) Nutt. — 37 images
sickle-pod — Arabis canadensis (L.) Al-Shehbaz — 19 images
sideoats grama — Bouteloua curtipendula (Michaux) Torrey — 15 images
silk tree — Albizia julibrissin Durazz. — 1 images
silky dogwood — Cornus amomum (P.Miller) Small var. amomum — 16 images
silky willow — Salix sericea Marsh. — 45 images
silver birch — Betula pendula Roth — 12 images
silver cinquefoil — Potentilla argentea L. — 32 images
silver maple — Acer saccharinum L. — 39 images
silver-leaved summer grape — Vitis aestivalis Deam — 17 images
silverrod, white goldenrod — Solidago bicolor L. — 27 images
silvery bog sedge — Carex canescens ssp. disjuncta (Fern.) Toivonen — 23 images
silvery hairgrass — Aira caryophyllea L. — 10 images
silvery sedge — Carex argyrantha Tuckerman — 10 images
silvery spleenwort — Deparia acrostichoides (Swartz) M.Kato — 20 images
single-veined sweetflag — Acorus calamus L. — 18 images
six-weeks annual fescue — Vulpia octoflora var. tenella (Willd.) Fern. — 16 images
skunk cabbage — Symplocarpus foetidus (L.) Salisb. ex Nutt. — 43 images
sleepy catchfly — Silene antirrhina L. — 11 images
slender amaranth, green amaranth — Amaranthus viridis L. — 7 images
slender blueflag — Iris prismatica Pursh — 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. — 2 images
slender groundcedar, wiry groundcedar — Diphasiastrum tristachyum (Pursh) Holub — 6 images
slender mannagrass, Fernald's mannagrass — Torreyochloa pallida var. fernaldii (A.S.Hitchc.) Dore ex Koyama & Kawano — 17 images
slender parsley-piert — Aphanes australis Rydberg — 16 images
slender pinweed — Lechea tenuifolia Michaux — 18 images
slender rose gentian, slender marsh pink — Sabatia campanulata (L.) Torrey — 8 images
slender spikerush — Eleocharis tenuis (Willd.) Schultes var. tenuis — 17 images
slender stinging nettle — Urtica gracilis Aiton — 26 images
slender straw sedge — Carex tenera Dewey — 8 images
slender three-seeded mercury — Acalypha gracilens A.Gray — 8 images
slender wheatgrass — Elymus trachycaulus ssp. glaucus (Pease & Moore) Cody — 3 images
slender willow, meadow willow — Salix petiolaris J.E.Smith — 44 images
slender wood sedge, slender-spiked woodland sedge — Carex 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
slim amaranth, smooth pigweed — Amaranthus hybridus L. — 9 images
slippery elm — Ulmus rubra Muhl. — 8 images
small beggarticks — Bidens discoidea (Torrey & A.Gray) Britton — 8 images
small cranberry — Vaccinium oxycoccos L. — 5 images
small enchanter's nightshade — Circaea alpina L. — 2 images
small floating bladderwort — Utricularia radiata Small — 27 images
small-flowered bittercress — Cardamine parviflora var. arenicola (Britton) O.E.Schulz — 24 images
small-flowered buttercup, small-flowered crowfoot — Ranunculus micranthus Nutt. — 8 images
small-flowered daffodil — Narcissus minor L. — 2 images
small-flowered evening primrose — Oenothera parviflora L. — 9 images
small-flowered false foxglove, small-flowered gerardia — Agalinis paupercula (A.Gray) Britton var. paupercula — 16 images
small-flowered rose — Rosa micrantha Borrer ex J.E.Smith — 11 images
small-flowered slender false foxglove, small-flowered slender gerardia — Agalinis tenuifolia (Nutt.) Pennell — 6 images
small-fruited beadgrass — Paspalum setaceum Michaux var. setaceum — 7 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 cockspur — Echinochloa muricata var. microstachya Wieg. — 6 images
smooth alder, common alder — Alnus serrulata (Ait.) Willd. — 44 images
smooth aster — Aster laevis (L.) A. & D.Löve var. laeve — 14 images
smooth crabgrass — Digitaria ischaemum (Schreber) Schreber ex Muhl. — 9 images
smooth goldenrod, late goldenrod — Solidago gigantea Aiton — 22 images
smooth hawk's beard — Crepis capillaris (L.) Wallr. — 7 images
smooth hawkweed — Hieracium piloselloides Vill. — 21 images
smooth hydrangea, sevenbark — Hydrangea arborescens L. — 3 images
smooth marigold — Bidens laevis (L.) B.S.P. — 5 images
smooth orache, Scotland orache — Atriplex glabriuscula Edmondston — 12 images
smooth panic grass — Dichanthelium spretum (J.A.Schultes) Freckmann & Lelong — 4 images
smooth rock-cress — Arabis laevigata (Muhl. ex Willd.) Al-Shehbaz — 1 images
smooth rose — Rosa 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 spiderwort — Tradescantia ohiensis Raf. — 1 images
smooth sumac — Rhus glabra L. — 16 images
smooth white oldfield aster — Aster (Ell.) Nesom — 10 images
smooth winterberry — Ilex laevigata (Pursh) A.Gray — 19 images
smooth witherod — Viburnum nudum L. var. nudum — 2 images
smooth yellow false foxglove — Aureolaria flava (L.) Farw. var. flava — 14 images
smooth yellow violet — Viola pubescens var. scabriuscula Schweinitz ex Torrey & A.Gray — 17 images
smooth yellow woodsorrel — Oxalis florida Salisb. — 6 images
smooth-sheathed sedge — Carex laevivaginata (Kükenth.) Mackenzie — 4 images
snow crocus, golden crocus — Crocus chrysanthus (Herb.) Herb. — 2 images
snow-in-summer — Cerastium tomentosum L. — 8 images
snowdrop — Galanthus nivalis L. ssp. nivalis — 8 images
soft brome — Bromus hordeaceus L. — 5 images
soft rush — Juncus effusus L. ssp. effusus — 5 images
soft-stemmed spikerush — Eleocharis obtusa (Willd.) J.A.Schultes var. obtusa — 54 images
soft-stemmed spikerush — Eleocharis obtusa var. ellipsoidalis Fern. — 10 images
soft-stemmed spikerush — Eleocharis obtusa var. jejuna Fern. — 2 images
softstem bulrush — Scirpus tabernaemontani (K.C.Gmelin) Palla — 20 images
sour cherry — Prunus cerasus L. — 3 images
sourwood — Oxydendrum arboreum (L.) DC. — 7 images
southern arrowwood — Viburnum dentatum var. venosum (Britt.) Gleason — 1 images
southern bog clubmoss — Lycopodiella appressa (Chapman) Cranfill — 21 images
southern catalpa, Indian bean tree — Catalpa bignonioides Walter — 16 images
southern dewberry — Rubus enslenii Tratt. — 4 images
southern groundcedar — Diphasiastrum digitatum (Dill. ex A.Br.) Holub — 26 images
southern ladyfern — Athyrium asplenioides (Michaux) Desv. — 3 images
southern rough-stemmed goldenrod, barrens goldenrod — Solidago rugosa ssp. aspera (Aiton) Fern. — 8 images
spearmint — Mentha spicata L. ssp. spicata — 6 images
speckled alder — Alnus rugosa (Du Roi) Spreng. — 47 images
sphagnum goldenrod — Solidago aestivalis Bicknell — 25 images
spicebush — Lindera benzoin (L.) Blume — 64 images
spinulose wood fern — Dryopteris carthusiana (Vill.) H.P.Fuchs — 39 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 — Eupatorium maculatum (L.) E.E.Lamont var. maculatum — 9 images
spotted St. John's-wort — Hypericum punctatum Lam. — 16 images
spotted cranesbill, wild geranium, wood geranium — Geranium maculatum L. — 26 images
spotted deadnettle — Lamium maculatum L. — 3 images
spotted knapweed, bushy knapweed — Centaurea stoebe ssp. micranthos (Gugler) Hayek — 94 images
spotted pondweed — Potamogeton pulcher Tuckerman — 6 images
spotted spurge, milk purslane — Euphorbia maculata L. — 21 images
spotted water hemlock — Cicuta maculata L. — 24 images
spreading bulrush — Scirpus expansus Fern. — 4 images
spreading cotoneaster — Cotoneaster divaricatus Rehd. & Wilson — 17 images
spreading dogbane — Apocynum androsaemifolium L. — 15 images
spreading ricegrass — Oryzopsis asperifolia Michaux — 24 images
spreading ticktrefoil — Desmodium ×humifusum (Muhl. ex Bigelow) Beck — 3 images
spreading woodland sedge — Carex laxiculmis Schwein. — 11 images
spring crocus — Crocus vernus (L.) Hill — 17 images
spring vetch, tare — Vicia sativa ssp. sativa L. ssp. sativa — 11 images
spring water starwort, vernal water starwort, narrow-fruited water starwort, spiny water starwort — Callitriche palustris L. — 3 images
spring whitlow-grass, longpod whitlow-grass — Draba verna L. — 43 images
squaw-root, cancer-root — Conopholis americana (L.) Wallr.f. — 12 images
squirrel corn — Dicentra canadensis (Goldie) Walp. — 14 images
staghorn sumac — Rhus typhina L. — 32 images
stalked bulrush, stalked woolgrass — Scirpus pedicellatus Fern. — 10 images
stalked water horehound, swamp water horehound — Lycopus rubellus Moench — 29 images
star sedge — Carex radiata (Wahlenb.) Small — 9 images
star-of-Bethlehem — Ornithogalum umbellatum L. — 25 images
starry Solomon's seal — Smilacina stellata (L.) Link — 30 images
starved panic grass, slender panic grass — Dichanthelium depauperatum (Muhl.) Gould — 3 images
steeplebush — Spiraea tomentosa L. — 18 images
sticky goldenrod — Solidago simplex Kunth var. simplex — 2 images
sticky nightshade — Solanum sisymbriifolium Lam. — 3 images
stiff aster, spruce aster — Ionactis linariifolia (L.) Greene — 35 images
stiff clubmoss — Lycopodium annotinum (L.) A.Haines — 9 images
stiff marsh bedstraw, stiff three-petaled bedstraw — Galium tinctorium (L.) Scop. var. tinctorium — 35 images
stiff sedge — Carex stricta var. strictior (Dewey) Carey — 19 images
stiff-leaved sand sedge, shaved sedge — Carex tonsa (Fern.) Bickn. var. tonsa — 26 images
stinging nettle — Urtica dioica L. — 26 images
stink grass, stinking lovegrass — Eragrostis cilianensis (All.) Lut. ex Janchen — 12 images
stout blue-eyed grass — Sisyrinchium angustifolium P.Miller — 27 images
stout thimbleweed — Anemone virginiana L. var. virginiana — 12 images
straw foxglove, small yellow foxglove — Digitalis lutea L. — 5 images
straw sedge — Carex straminea Willd. ex Schkuhr — 14 images
straw-colored flatsedge — Cyperus strigosus L. — 40 images
strict hairgrass — Aira praecox L. — 13 images
striped maple — Acer pensylvanicum L. — 34 images
striped pipsissewa, spotted wintergreen — Chimaphila maculata (L.) Pursh — 22 images
striped squill — Puschkinia scilloides Adams — 14 images
succulent hawthorn — Crataegus succulenta Schrader ex Link var. succulenta — 8 images
sugar maple — Acer saccharum Marsh. — 30 images
sulphur cinquefoil, sulfur cinquefoil, rough-fruited cinquefoil — Potentilla recta L. — 14 images
summer cypress — Kochia scoparia (L.) Schrader — 18 images
summer grape, pigeon grape — Vitis aestivalis Michaux var. aestivalis — 7 images
summer snowflake — Leucojum aestivum L. — 3 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 beggarticks — Bidens connata Muhl. ex Willd. — 15 images
swamp birch, fen birch — Betula pumila L. — 8 images
swamp candles — Lysimachia terrestris (L.) B.S.P. — 25 images
swamp cottonwood — Populus heterophylla L. — 4 images
swamp dewberry, dwarf raspberry — Rubus pubescens Raf. — 15 images
swamp dock, water dock — Rumex verticillatus L. — 18 images
swamp goldenrod — Solidago uliginosa Nutt. — 16 images
swamp gooseberry — Ribes hirtellum Michaux — 16 images
swamp loosestrife, waterwillow — Decodon verticillatus (L.) Ell. — 51 images
swamp mallow, rose mallow — Hibiscus moscheutos L. ssp. moscheutos — 27 images
swamp pennywort, woodland pennywort — Hydrocotyle americana L. — 19 images
swamp rose — Rosa palustris Marsh. — 30 images
swamp saxifrage — Saxifraga pensylvanica (L.) Haw. — 13 images
swamp sweetbells — Leucothoe racemosa (L.) Nutt. — 54 images
swamp white oak — Quercus bicolor Willd. — 63 images
sweet Joe-Pye-weed — Eupatorium purpureum (L.) E.E.Lamont var. purpureum — 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. — 36 images
sweet cherry — Prunus avium (L.) L. — 20 images
sweet cicely — Osmorhiza claytoni (Michaux) C.B.Clarke — 28 images
sweet coneflower — Rudbeckia subtomentosa Pursh — 3 images
sweet everlasting, fragrant cudweed — Gnaphalium obtusifolium (L.) Hilliard & Burtt — 27 images
sweet gale — Myrica gale L. — 58 images
sweet pepperbush — Clethra alnifolia L. — 45 images
sweet pignut hickory, red hickory — Carya ovalis (Wangenh.) Sarg. — 4 images
sweet vernalgrass — Anthoxanthum odoratum L. — 21 images
sweet white violet, large-leaved white violet — Viola blanda Dewey — 25 images
sweet white woodruff — Galium odoratum (L.) Scop. — 11 images
sweet wormwood, Asian annual wormwood — Artemisia annua L. — 16 images
sweetbay magnolia — Magnolia virginiana L. — 13 images
sweetbrier — Rosa rubiginosa L. — 9 images
sweetfern — Comptonia peregrina (L.) Coulter — 28 images
sweetgum — Liquidambar styraciflua L. — 17 images
sweetshoot bamboo — Phyllostachys dulcis McClure — 5 images
sweetwilliam catchfly — Silene armeria L. — 26 images
switchgrass — Panicum virgatum L. — 41 images
sycamore maple — Acer pseudoplatanus L. — 20 images
tall beggarticks — Bidens vulgata Greene — 11 images
tall bushclover, Thunberg's bushclover, shrub lespedeza — Lespedeza thunbergii ssp. formosa (Nakai) H.Ohashi — 26 images
tall buttercup — Ranunculus acris L. — 18 images
tall cinquefoil, glandular cinquefoil — Potentilla arguta (Pursh) Rydb. — 6 images
tall fescue, tall ryegrass — Festuca arundinacea (Schreb.) Dumort. — 10 images
tall flat-topped white aster — Aster umbellatus (P.Mill) Nees var. umbellata — 37 images
tall goldenrod — Solidago altissima L. ssp. altissima — 18 images
tall mannagrass — Glyceria grandis S.Watson — 2 images
tall meadowrue — Thalictrum pubescens Pursh — 27 images
tall milkweed — Asclepias exaltata L. — 11 images
tall oatgrass — Arrhenatherum elatius (L.) J. & K.Presl — 17 images
tall rattlesnake root, slender rattlesnake root — Prenanthes altissima (L.) Hooker — 20 images
tall sunflower, giant sunflower — Helianthus giganteus L. — 5 images
tall white beard-tongue — Penstemon digitalis Nutt. ex Sims. — 14 images
tall white or panicled aster — Aster lanceolatus (Willd.) G.L.Nesom ssp. lanceolatum var. lanceolatum — 2 images
tall white violet, Canada violet — Viola canadensis L. var. canadensis — 24 images
tamarack, American larch — Larix laricina (DuRoi) K.Koch — 15 images
tapegrass, water celery — Vallisneria americana Michaux — 18 images
tea viburnum — Viburnum setigerum Hance — 3 images
thick-leaved wild strawberry — Fragaria virginiana Duchesne ssp. virginiana — 24 images
thicket creeper, grape woodbine — Parthenocissus inserta (Knerr) A.S.Hitchc. — 16 images
thicket shadbush, running shadbush, running serviceberry, dwarf serviceberry, low serviceberry, low juneberry — Amelanchier spicata (Lam.) K.Koch — 46 images
thicket shadbush, thicket serviceberry, eastern serviceberry, Canadian serviceberry, shadbush serviceberry, juneberry, shad-blow, — Amelanchier canadensis (L.) Medicus — 58 images
thin-leaved sunflower — Helianthus decapetalus L. — 4 images
threadleaf arrowhead, riffle arrowhead — Sagittaria filiformis J.G.Sm. — 2 images
threadleaf sundew — Drosera filiformis Raf. var. filiformis — 42 images
threadstem sedge, Howe's prickly sedge — Carex atlantica ssp. capillacea (Bailey) Reznicek — 10 images
three-finger, strawberryweed — Potentilla norvegica L. — 19 images
three-leaved rattlesnake root, gall-of-the-earth — Prenanthes trifoliolata Cass. — 29 images
three-seeded bog sedge — Carex billingsii (Knight) C.D.Kirschbaum — 6 images
three-seeded bog sedge — Carex trisperma Dewey — 16 images
three-toothed cinquefoil — Sibbaldiopsis tridentata (Aiton) Rydb. — 14 images
threeleaf goldthread — Coptis trifolia ssp. groenlandica (L.) Salisb. — 32 images
threeway sedge — Dulichium arundinaceum (L.) Britton — 21 images
thyme-leaved sandwort — Arenaria serpyllifolia L. — 16 images
thyme-leaved speedwell — Veronica serpyllifolia L. — 29 images
thymeleaf pinweed — Lechea minor L. — 26 images
tidal marsh amaranth, saltmarsh waterhemp, waterhemp ragweed — Amaranthus cannabinus (L.) Sauer — 14 images
tiger lily — Lilium lancifolium Thunb. — 6 images
timothy — Phleum pratense L. — 18 images
tiny 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
tomatillo, Mexican groundcherry — Physalis philadelphica Waterfall — 9 images
tomato — Solanum lycopersicon L. — 8 images
toothed white-topped aster — Sericocarpus asteroides (L.) B.S.P. — 26 images
tower mustard — Arabis glabra L. — 32 images
trail oatgrass, woodland oatgrass — Danthonia compressa Austin ex Peck — 25 images
trailing arbutus, mayflower — Epigaea repens L. — 50 images
trailing bushclover — Lespedeza procumbens Michaux — 12 images
trailing pearlwort — Sagina decumbens (Ell.) Torrey & A.Gray ssp. decumbens — 5 images
tree false spirea — Sorbaria arborea C.K.Schneid. — 7 images
tree-of-heaven — Ailanthus altissima (P.Miller) Swingle — 77 images
trembling aspen — Populus tremuloides Michaux — 45 images
trout lily — Erythronium americanum Ker Gawler ssp. americanum — 41 images
true forget-me-not, water forget-me-not, scorpion weed — Myosotis scorpioides L. — 12 images
trumpet creeper — Campsis radicans (L.) Seemann ex Bureau — 17 images
trumpet honeysuckle — Lonicera sempervirens L. — 11 images
tubercled spikerush — Eleocharis tuberculosa (Michaux) Roemer & Schultes — 15 images
tuberous grasspink — Calopogon tuberosus (L.) B.S.P. — 14 images
tuberous water horehound, northern water horehound — Lycopus uniflorus Michaux — 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 (Michaux) Nees — 24 images
tuliptree — Liriodendron tulipifera L. — 34 images
tumbling mustard — Sisymbrium altissimum L. — 9 images
tupelo, black gum — Nyssa sylvatica Marshall — 108 images
turnip — Brassica rapa L. — 7 images
tussock sedge — Carex stricta Lam. — 21 images
twin-scaped bladderwort — Utricularia geminiscapa Benj. — 24 images
twinflower — Linnaea borealis (Forbes) Hultén ex Clausen — 9 images
twisted drooping sedge — Carex prasina Wahlenb. — 7 images
twisted yellow-eyed grass — Xyris torta Small — 30 images
twistwood, wayfaring tree — Viburnum lantana L. — 7 images
twoleaf miterwort, twoleaf mitrewort, coolwort, Bishop's cap — Mitella diphylla L. — 8 images
umbrella magnolia — Magnolia tripetala L. — 14 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
upland brittle bladder fern, MacKay's fragile fern, MacKay's brittle fern — Cystopteris tenuis (Michaux) Desv. — 5 images
upright yellow rocket — Barbarea stricta Andrz. — 3 images
variable sedge — Carex polymorpha Muhl. — 8 images
variable watermilfoil — Myriophyllum heterophyllum Michaux — 12 images
variegated entireleaf willow — Salix integra var. albo-marginata Thunb. 'Albo-Marginata' — 2 images
variegated scouring rush — Equisetum variegatum Schleicher ex Weber & Mohr ssp. variegatum — 5 images
variegated yellow archangel — Lamium argentatum (Smejkal) Henker ex G.H.Loos — 33 images
velvet bentgrass, brown bentgrass — Agrostis canina L. — 6 images
velvet grass — Holcus lanatus L. — 26 images
velvet-fruited sedge — Carex vestita Willd. — 29 images
velvet-leaf blueberry, sourtop blueberry — Vaccinium myrtilloides Michaux — 21 images
velvetleaf, velvet plant, velvetweed, crownweed, buttonweed, Chinese jute — Abutilon theophrasti Medicus — 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 — 2 images
virgin's bower — Clematis virginiana L. — 16 images
viscid nightshade, groundcherry nightshade, hoe nightshade — Solanum physalifolium (Bitter) Edmonds — 3 images
wall lettuce — Mycelis muralis (L.) Dumort. — 8 images
wallflower (garden hybrid, parentage uncertain) — Erysimum ×marshalli (Henfr.) Bois. — 4 images
wand bushclover — Lespedeza violacea (L.) Pers. — 17 images
warty panic grass — Panicum verrucosum Muhl. — 24 images
water arum, wild calla — Calla palustris L. — 19 images
water bulrush, floating bulrush — Scirpus subterminalis (Torrey) Soják — 29 images
water chestnut, water caltrop — Trapa natans L. — 17 images
water hyacinth — Eichhornia crassipes (Mart.) Solms-Laubach — 1 images
water lettuce — Pistia stratiotes L. — 3 images
water lobelia — Lobelia dortmanna L. — 28 images
water parsnip — Sium suave Walter — 19 images
water pepper — Polygonum hydropiper (L.) Opiz — 6 images
water pimpernel — Samolus valerandi (Raf.) Hultén — 18 images
water purslane, mud loosestrife — Ludwigia palustris (L.) Elliott — 26 images
watercress — Nasturtium microphyllum Boenn. ex Reichenb. — 6 images
watercress — Nasturtium officinale Ait.f. — 9 images
watershield — Brasenia schreberi J.F.Gmelin — 42 images
waxy-leaved meadowrue, skunk meadowrue — Thalictrum revolutum DC. — 26 images
weeping forsythia, golden bell — Forsythia suspensa (Thunb.) Vahl — 7 images
weeping lovegrass — Eragrostis curvula (Schrader) Nees — 16 images
western bleeding heart, Pacific bleeding heart — Dicentra formosa (Andr.) Walp. — 2 images
western false Solomon's seal — Smilacina amplexicaulis (Nutt.) W.A.Weber — 2 images
western maidenhair spleenwort — Asplenium quadrivalens (D.E.Meyer) Landolt — 2 images
western plane, American planetree, sycamore — Platanus occidentalis L. — 56 images
western ragweed — Ambrosia psilostachya DC. — 2 images
western snowberry — Symphoricarpos albus ssp. laevigatus (Fern.) Hultén — 6 images
western thimbleberry — Rubus parviflorus L. — 3 images
whip hawkweed — Hieracium flagellare Willd. — 6 images
white ash — Fraxinus americana L. — 69 images
white avens — Geum canadense Jacq. var. canadense — 48 images
white beakrush — Rhynchospora alba (L.) Vahl — 30 images
white bear sedge — Carex albursina Sheldon — 1 images
white bedstraw, field madder — Galium mollugo L. — 27 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 fir, Colorado fir — Abies concolor (Gordon & Glend.) Lindley ex Hildebrand — 10 images
white forsythia — Abeliophyllum distichum Nakai — 7 images
white fringed orchid — Platanthera blephariglottis (Willd.) Lindley — 14 images
white fringetree — Chionanthus virginicus L. — 14 images
white mulberry — Morus alba L. — 18 images
white mullein — Verbascum lychnitis L. — 9 images
white oak — Quercus alba L. — 76 images
white oldfield aster, hairy aster, awl aster — Aster pilosus (Willd.) G.L.Nesom var. pilosum — 49 images
white pine — Pinus strobus L. — 89 images
white poplar — Populus alba L. — 16 images
white snakeroot — Ageratina 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 — Cynanchum vincetoxicum (L.) Pers. — 5 images
white sweetclover — Melilotus albus Medicus — 15 images
white trillium — Trillium grandiflorum (Michx.) Salisb. — 3 images
white turtlehead — Chelone glabra L. — 26 images
white vervain — Verbena urticifolia L. — 17 images
white willow — Salix alba L. — 13 images
white wood aster — Aster divaricatus (L.) G.L.Nesom — 15 images
white-flowered golden hedgehyssop — Gratiola aurea forma leucantha Bartlett — 24 images
whorled loosestrife — Lysimachia quadrifolia L. — 19 images
whorled loosestrife × swamp candles — Lysimachia ×producta (A.Gray) Fern. — 6 images
whorled milkweed — Asclepias verticillata L. — 8 images
whorled milkwort — Polygala verticillata L. — 14 images
whorled mountain mint, hairy mountain mint — Pycnanthemum verticillatum var. pilosum (Nutt.) Cooperrider — 4 images
whorled wood aster — Aster acuminatus (Michaux) Nesom — 31 images
wig knapweed — Centaurea phrygia L. — 8 images
wild barley — Hordeum murinum ssp. leporinum (Link) Arcangeli — 7 images
wild basil — Clinopodium vulgare L. — 23 images
wild bergamot — Monarda fistulosa L. ssp. fistulosa — 16 images
wild chives — Allium schoenoprasum L. — 5 images
wild columbine, red columbine — Aquilegia canadensis L. — 43 images
wild cucumber, prickly cucumber — Echinocystis lobata (Michaux) Torrey & A.Gray — 13 images
wild daffodil, trumpet daffodil — Narcissus pseudonarcissus L. — 10 images
wild garlic — Allium canadense L. ssp. canadense — 10 images
wild goose plum — Prunus hortulana Bailey — 2 images
wild gooseberry — Ribes cynosbati L. — 7 images
wild honeysuckle — Lonicera dioica L. — 4 images
wild leek — Allium tricoccum Aiton var. tricoccum — 7 images
wild licorice, forest bedstraw — Galium circaezans Michaux var. circaezans — 20 images
wild licorice, lanceleaf bedstraw — Galium lanceolatum Torrey — 9 images
wild lupine — Lupinus perennis L. — 23 images
wild oatgrass, poverty grass — Danthonia spicata (L.) Beauv. ex Roemer & J.A. Schultes — 10 images
wild parsnip — Pastinaca sativa L. — 20 images
wild plum, American plum — Prunus americana Marsh. — 3 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 (Michaux) Focke — 1 images
wild rice — Zizania aquatica L. — 28 images
wild sarsaparilla — Aralia nudicaulis L. — 46 images
wild white violet, northern white violet, small white violet — Viola pallens (Banks ex DC.) Brainerd — 8 images
willowleaf cotoneaster — Cotoneaster salicifolius Franch. — 4 images
willowleaf dock — Rumex salicifolius (Danser) Rech.f. — 4 images
windwitch, prickly Russian thistle — Salsola kali ssp. tragus L. — 2 images
wine raspberry, wineberry — Rubus phoenicolasius Maxim. — 10 images
winged bindweed — Polygonum cristatum (Engelm. & A.Gray) Holub — 10 images
winged sneezeweed, purple-headed sneezeweed — Helenium flexuosum Raf. — 24 images
winged spindletree, burning bush — Euonymus alatus (Thunb.) Sieb. — 37 images
wingstem — Verbesina alternifolia (L.) Britton — 10 images
winter creeper — Euonymus fortunei (Turcz.) Hand.-Maz. — 27 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 — Panicum capillare L. ssp. capillare — 16 images
wood anemone, windflower — Anemone quinquefolia L. — 40 images
wood betony, Canadian lousewort, common lousewort — Pedicularis canadensis L. ssp. canadensis — 15 images
wood figwort — Scrophularia nodosa L. — 7 images
wood lily — Lilium philadelphicum L. — 50 images
wood nettle — Laportea canadensis (L.) Weddell — 9 images
woodbine, European common honeysuckle — Lonicera periclymenum L. — 3 images
woodgrass — Brachyelytrum aristosum (Michaux) Trel. — 15 images
woodland Jack-in-the-pulpit — Arisaema triphyllum (L.) Schott ex Schott & Endl. — 32 images
woodland bedstraw, sweet-scented bedstraw — Galium triflorum Michaux — 16 images
woodland bluegrass — Poa nemoralis L. — 5 images
woodland brome or Canada brome — Bromus pubescens Muhl. ex Willd. — 6 images
woodland bulrush — Scirpus verecundus (Spreng.) Palla — 20 images
woodland crocus, early or snow crocus — Crocus tommasinianus Herb. — 10 images
woodland hawkweed, panicled hawkweed — Hieracium paniculatum L. — 15 images
woodland horsetail — Equisetum sylvaticum L. — 3 images
woodland rush — Juncus subcaudatus (Engelm.) Coville — 5 images
woodland sage — Salvia nemorosa L. — 2 images
woodland sedge — Carex blanda Dewey — 13 images
woodland strawberry — Fragaria vesca ssp. americana (Porter) Staudt — 9 images
woodland sunflower, rough 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 — Aristolochia tomentosa (Sims) Huber — 4 images
wormseed mustard — Erysimum cheiranthoides L. — 15 images
wreath goldenrod, bluestem goldenrod — Solidago caesia L. var. caesia — 19 images
yamleaf clematis — Clematis terniflora DC. — 22 images
yellow bedstraw — Galium verum L. ssp. verum — 6 images
yellow birch — Betula alleghaniensis Britton — 54 images
yellow catalpa, Chinese catalpa — Catalpa ovata G.Don — 6 images
yellow daylily — Hemerocallis lilioasphodelus L. — 1 images
yellow flatsedge — Cyperus esculentus L. — 14 images
yellow floating heart — Nymphoides peltata Gmelin (Kuntze) — 17 images
yellow foxtail — Setaria pumila (Poir.) Roemer & J.A.Schultes ssp. pumila — 35 images
yellow goat's beard — Tragopogon pratensis L. — 2 images
yellow henbit, yellow archangel — Lamium galeobdolon (L.) L. ssp. galeobdolon — 1 images
yellow hornpoppy, sea poppy — Glaucium flavum Crantz — 18 images
yellow iris — Iris pseudacorus L. — 27 images
yellow ladies' tresses — Spiranthes ochroleuca (Rydb.) Rydb. — 6 images
yellow oak, chinquapin oak — Quercus muehlenbergii Engelm. — 1 images
yellow screwstem, Virginia screwstem — Bartonia virginica (L.) B.S.P. — 23 images
yellow sedge — Carex flava L. — 7 images
yellow stargrass — Hypoxis hirsuta (L.) Cov. — 22 images
yellow sweetclover — Melilotus officinalis (L.) Lam. — 9 images
yellow thistle — Cirsium horridulum Michaux — 19 images
yellow toadflax, common Eurasian toadflax, butter-and-eggs — Linaria vulgaris P. Miller — 16 images
yellow water buttercup, yellow water crowfoot — Ranunculus flabellaris Raf. — 4 images
yellow waterlily, spatterdock — Nuphar variegata Durand ex Clinton — 44 images
yellow wild indigo, horsefly weed — Baptisia tinctoria (L.) R.Br. ex Ait.f. — 19 images
yellow wild lettuce — Lactuca canadensis L. — 50 images
yellow wood anemone, 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 fox sedge — Carex annectens (Bickn.) Bickn. — 18 images
yellow-grooved bamboo — Phyllostachys aureosulcata McClure — 9 images
yellowroot — Xanthorhiza simplicissima Marsh. — 14 images
yellowwood — Cladrastis kentukea (Dum.-Cours.) Rudd — 14 images
zigzag goldenrod — Solidago flexicaulis L. — 9 images