Name Page Name PageAbies balsamea 225 Amelanchier canadensis 11Acer ginnala 214 Amelanchier spicata 12Acer negundo 220 American (Wild) Senna 94Acer nigrum 215 American Basswood* 213Acer pensylvanicum 215 American Beech* 209Acer platanoides 215 American Bellflower 145Acer rubrum 216 American Bittersweet* 114Acer saccharinum 216 American Black Currant* 119Acer saccharum 216 American Black Elderberry* 72Acer spicatum 217 American Bladdernut* 39Achillea millefolium 60 American Brooklime 136Aconitum napellus 139 American Chestnut* 207Acorus americanus 125 American Cranberrybush* 75Acorus calamus 125 American Dogbane 34Actaea pachypoda 60 American Elm* 213Actaea racemosa 61 American Feverfew 71Actaea rubra 60 American Germander 33Adam and Eve 161 American Ginseng 71Adiantum pedatum 195 American Hazelnut* 127Aesculus glabra 221 American Linden* 213Aethusa cynapium 61 American Lopseed 32/167Agastache foeniculum 139 American Mountain Ash* 224Agastache nepetoides 84 American Plum* 211Agastache scrophulariifolia 139 American Red Raspberry 24Ageratina altissima 61 American Silverberry* 82Agrimonia pubescens 86 American Speedwell 136Agrimonia striata 87 American Spikenard 63Agrimony - Roadside 87 American Vetch 174Agrimony - Soft 86 American Water Hore-hound 55Agueweed 142 American Wintergreen 38Ajuga reptans 140 American Yew* 227Alderleaf Buckthorn* 123 Amerorchis rotundifolia 33Alisma triviale 11 Amorpha canescens 151/182Allegheny Blackberry* 23 Amorpha nana 182Alliaria petiolata 34 Amphicarpaea bracteata 43/147Allium canadense 185 Amsonia tabernaemontana 135Allium cernuum 61/185 Amur Maple* 214Allium stellatum 62/186 Anaphalis margaritacea 62Allium tricoccum 62 Andromeda polifolia var. latifolia 41Alnus incana subsp. rugosa 205 Anemone acutiloba 12Alternate-leaf Dogwood* 66 Anemone acutiloba 135Alumroot 116 Anemone acutiloba 152Ambrosia artemisiifolia 121 Anemone americana 12Ambrosia trifida 121 Anemone canadensis 12Amelanchier alnifolia 11 Anemone caroliniana 44/135Amelanchier arborea 11 Anemone cylindrica 125

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Name Page Name PageAnemone patens 13 Asplenium rhizophyllum 201Anemone quinquefolia 13 Asplenium trichomanes 201Anemone virginiana 125 Aster - Arrowleaf 50Angelica atropurpurea 62 Aster - Bigleaf (Blue) 148Anise Hyssop 139 Aster - Blue Wood 149Aniseroot 71 Aster - Bottomland 49Annual Daisy Fleabane 45 Aster - Calico 48Antennaria neglecta 63 Aster - Flat-topped 45Antennaria plantaginifolia 63 Aster - Heart-leaved (Blue) 149Anthemis cotula 44 Aster - Heart-leaved (White) 48Apios americana 182 Aster - Many-flowered 48Aplectrum hyemale 161 Aster - New England 179Apocynum androsaemifolium 34/169 Aster - Ontario 49Apocynum cannabinum 34 Aster - Purplestem (Blue) 150Aquilegia canadensis 191 Aster - Purplestem (White) 49Aralia hispida 63 Aster - Red-stemmed (Blue) 150Aralia nudicaulis 131 Aster - Red-stemmed (White) 49Aralia racemosa 63 Aster - Short's 151Arctium minus 171 Aster - Side-flowering 49Arctostaphylos uva-ursi 41 Aster - Silky 150,179Arethusa bulbosa 161 Aster - Sky Blue 150Arisaema dracontium 116 Aster - Smooth Blue 149Arisaema triphyllum 116 Aster - Western Silver 150Arkansas Rose* 156 Aster - White Heath 48Arnoglossum reniforme 64 Aster - White Panicle 48Aromatic aster 149 Aster - White Wood 46Aronia arbutifolia 13 Astragalus canadensis 126Aronia melanocarpa 14 Athyrium filix-femina 195Arrow-leaved Tearthumb 58 Atlantic Camas 14Arrow-leaved Violet 137 Auricled Twayblade 117Arrowhead Rattlebox 93 Balm of Gilead* 210Arrowwood - Downy* 76 Balsam Fir* 225Arrowwood - Southern* 74 Balsam Poplar* 210Artemisia campestris ssp. caudata 126 Baneberry - Red 60Artemisia ludoviciana 50 Baneberry - White 60Aruncus dioicus 51 Baptisia alba var. macrophylla 43Asarum canadense 169 Baptisia australis 147Asclepias exaltata 64 Baptisia bracteata 44Asclepias incarnata 186 Baptisia tinctoria 93Asclepias syriaca 186 Barbarea vulgaris 87Asclepias tuberosa 194 Barren Strawbery 83Asclepias verticillata 64 Basket Ash* 222Ash-leaved Maple* 220 Bastard Toadflax 37Asparagus 170 Beaked Hazelnut* 127Asparagus officinalis 170 Bearberry 41Asplenium platyneuron 201 Beardless Bird's-foot Violet 137

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Name Page Name PageBeardtongue - Foxglove 31 Black Ash* 222Beardtongue - Pale 31 Black Bindweed 53/172Beardtongue - Showy 166 Black Birch* 206Bedstraw - Fragrant 19 Black Bugbane 61Bedstraw - Northern 18 Black Cherry* 212Bedstraw - Rough 18 Black Chokeberry* 14Bedstraw - Shining 18 Black Locust* 224Bedstraw - Threelobed 19 Black Medick 112Beechnut* 209 Black Mustard 87Beggar-ticks 94 Black Nightshade 39Beggar's Lice 54 Black Oak* 220Beggarticks - Devil's 95 Black Raspberry* 24Beggarticks - Swamp 95 Black Spruce* 226Belamcanda chinensis 189 Black Sugar Maple* 215Bellflower - Marsh 35 Black Walnut* 223Bellflowers - blue 144,145 Black Willow* 212Bellwort - Large flowered 93 Black-eyed Susan 102Berry Bladder Fern 195 Blackberry - Allegheny* 23Berteroa incana 34 Blackberry - Dwarf Red* 25Besseya bullii 111 Blackberry Lily 189Bettleweed (Galax) 53 Bladder Campion (White Campion) 32Betula alleghaniensis 205 Bland Sweet Cicely 70Betula lenta 206 Blanket-flower 96Betula nigra 206 Blazing Star - Dense 178Betula papyrifera 206 Blazing Star - Dotted 177Betula pumila 207 Blazing Star - Large-headed 177Bidens cernua 94 Blazing Star - Northern 178Bidens connata 95 Blazing Star - Ontario 177Bidens frondosa 95 Blazing Star - Prairie 177Biennial Gaura 19 Blazing Star - Rough 176Biennial Lettuce 146 Blazing Star - Scaly 178Bigleaf Aster 47/148 Blazing Star - Shaggy 177Bigtooth Aspen* 210 Blephilia cilata 140/162Bindweed - Black 53 Blephilia hirsuta 140/162Bindweed - Field 29 Blisterwort 90Bindweed - Fringed Black 52 Blood Milkwort 184Bindweed - Hedge 29 Bloodroot 26Bird's-foot Deer-vetch 91 Blue Beech* 207Bird’s-foot Trefoil 91 Blue Cardinal Flower 143Bird’s-foot Violet 137 Blue Cohosh 114Bishop's Cap 38 Blue Flag Iris 138Bitter Milkwort 58,184 Blue Giant Hyssop 139Bittercress 36 Blue Squill 139Bitternut Hickory* 221 Blue Vervain 151Bittersweet Nightshade 146,159 Blue Violet - Common 138Black Alder* 20 Blue Wild Indigo 147

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Name Page Name PageBlue Wood Aster 149 Bugbane 61Blue-bead Lily 91 Bugleweed - Northern 55Blue-eyed grass 136 Bulb-bearing Water Hemlock 65Blue-eyed Mary 147 Bulblet Bladder Fern 195Bluejacket 146 Bulblet Water Hemlock 65Blunt-leaved Orchid 119 Bull Thistle 176Blunt-leaved Sandwort 21 Bull's Coral-drops 111Blunt-lobe Cliff Fern 204 Bunchberry 16Boechera laevigata 35/116 Bur Cucumber 26Bog Birch* 207 Bur Oak* 219Bog Rosemary 41 Bur-reed, Giant 133Bog White Violet 28 Burdock - Lesser 171Bog Wintergreen 168 Burnweed (Fireweed) 88Bog-bean 21 Bush Honeysuckle* 85/164Boltonia asteroides 45 Butter and Eggs 91Boneset 68,69 Buttercups 81-90Boneset - False 65 Butterfly Milkweed 194Botrychium virginianum 201 Butterfly Weed 194Bottle Gentian 141 Butternut* 223Bottomland Aster 49 Button Blazing Star 176Bouncing Bet - Pink 159 Button Eryngio 68/132Bouncing Bet - White 26 Buttonbush* 65Box Elder* 220 Calico Aster 49Bracken Fern 200 California Nettle 131Bracted Spiderwort 160 Calla palustris 76Brassica nigra 87 Calopogon tuberosus var. tuberosus 162Braun’s Holly Fern 204 Caltha palustris 77Brickellia eupatorioides 65 Calypso bulbosa 162Bride’s Feathers 51 Calystegia sepium 29Bristly Bellflower 144 Camassia scilloides 14Bristly Blackberry 25 Campanula aparinoides 35Bristly Bluebells 144 Campanula cervicaria 144Bristly Buttercup 90 Campanula glomerata 144Bristly Greenbrier* 133 Campanula rapunculoides 145Bristly Sarsaparilla 63 Campanula rotundifolia 145Brittle Bladder Fern 196 Campanulastrum americanum 145Broad Beech Fern 203 Canada Anemone 12Broad-leaved Helleborine 165 Canada Elderberry* 72,73Broad-lipped Twayblade 117 Canada Germander 33Broadleaf Arrowhead 25 Canada Hawkweed 100Broadleaf Burweed 133 Canada Lily 84Broadleaf Enchanter’s Nightshade 37 Canada Moonseed 38Brown Wide-lip Orchid 166 Canada Ticktrefoil 172Brown-eyed Susan 103 Canada Violet 28Buckbean 21 Canadian Clearweed 128Buckthorn 122/123 Canadian Honewort 68

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Name Page Name PageCanadian Horseweed 88 Cherry Birch* 206Canadian Lousewort 86 Chickweed - Common 27Canadian Mayflower 55 Chickweed - Long-leaved 27Canadian Milk Vetch 126 Chickweed - Mouse-ear 14Canadian Wild Ginger 169 Chicory - Blue Type 135Canadian Wood Nettle 128 Chicory - White type 15Canadian Yew* 227 Chimaphila umbellata 170Candle Anemone 125 Chinkapin Oak* 212Canoe Birch* 206 Chionanthus virginicus 208Capsella bursa-pastoris 35 Chokecherry* 23Cardamine concatenata 36 Christmas Fern 200Cardamine diphylla 36 Cichorium intybus 15/135Cardamine pensylvanica 36 Cicuta bulbifera 65Cardinal Flower 191 Cicuta maculata 66Carolina anemone 44/135 Cimicifuga racemosa 61Carolina Larkspur 30 Cinnamon Fern 199Carolina Rose* 157 Cinquefoil - Common 81Carpet Bugle 140 Cinquefoil - Rough 80Carpinus caroliniana 207 Cinquefoil - Rough fruited 81Carrion Flowers 132 Cinquefoil - Shrubby 77Carya cordiformis 221 Cinquefoil - Silvery 80Carya ovata 221 Circaea alpina 36Castanea dentata 207 Circaea lutetiana ssp. canadensis 37Castilleja coccinea 192 Cirsium arvense 175Catbrier 133 Cirsium discolor 175Catmint 57 Cirsium muticum 176Catnip 57 Cirsium vulgare 176Cattail - Common 194 Cladrastis kentukea 222Cattail - Narrow-leaved 194 Clammy Cockle 32Cattail Giant Hyssop 84 Clammy Ground Cherry 91Caulophyllum thalictroides 114 Claytonia virginica 15/152Ceanothus americanus 65 Cleavers 18Celandine Poppy 83 Clematis virginiana 15Celastrus scandens 114 Climbing Bittersweet* 114Celery-leaf Buttercup 90 Climbing Buckwheat 53,172Celtis occidentalis 208 Climbing Nightshade 146/159Centaurea stoebe 175 Climbing Rose* 158Cephalanthus occidentalis 65 Clinton Fern 202Cerastium fontanum ssp. vulgare 14 Clintonia borealis 91Cercis canadensis 208 Closed Gentian 141Chamaecrista fasciculata 77 Clover - Purple Prairie 183Chamaedaphne calyculata 41 Clover - Red 187Chamerion angustifolium 152 Clover - Roundheaded Bushclover 54Chelone glabra 41 Clover - Silky Prairie 151Chelone obliqua 162 Clover - Sweet White 56Chenopodium capitatum 192 Clover - Sweet Yellow 93

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Name Page Name PageClover - White 74 Conyza canadensis 88Clover - White Prairie 51 Coptis trifolia 15Clustered Bellflower 144 Coralberry* 40/171Coeloglossum viride 117 Corallorhiza maculata 163Columbine 191 Corallorhiza striata 188Collinsia verna 147 Corallorhiza trifida 88Comandra umbellata 37 Coreopsis lanceolata 95Comarum palustre 152 Coreopsis palmata 95Comfrey 169 Cork Elm* 214Common Blue Violet 138 Cornus alternifolia 66Common Blue Wood Aster 149 Cornus canadensis 16Common Buckthorn* 123 Cornus obliqua 66Common Bugle 140 Cornus racemosa 67Common Carrion Flower 132 Cornus rugosa 67Common Cattail 194 Cornus sericea 67Common Chickweed 27 Coronilla varia 172Common Cinquefoil 81 Corydalis sempervirens 163Common Dandelion 110 Corydalis solida 163Common Dodder 121/192 Corylus americana 127Common Duckweed 134 Corylus cornuta 127Common Evening Primrose 85 Cottonwood* 210Common Fleabane 46 Cow Parsnip 69Common Goldstar 78 Cowslip 77Common Greenbrier 133 Cranberry - European* 76Common Hops 133,134 Cranberry - Highbush* 75Common Milkweed 186 Crataegus chrysocarpa 209Common Moonseed 38 Cream Pea 44Common Mullein 111 Creeping Bugle 140Common Periwinkle 136 Creeping Charlie 142Common Plantain 129 Creeping Jenny 79Common Polypody 203 Creeping Snowberry 38Common Ragweed 121 Creeping Spearwort 82Common Thorn Apple 29 Crepis tectorum 96Common Yellow Oxalis 80 Crested Shield Fern 197Compass Plant 104 Crested Wood Fern (Shield Fern) 197Comptonia peregrina 126/192 Crinkleroot 36Coneflower - Gray-headed 102 Cross-leaf Milkwort 184Coneflower - Green Headed 103 Crotalaria sagittalis 93Coneflower - Long-headed 102 Crown Vetch 172Coneflower - Narrow-leaf 180 Cryptotaenia canadensis 68Coneflower - Pale Purple 180 Culver's Root 59Coneflower - Purple 180 Cup Plant 105Coneflower- Thin-leaved 103 Curly Dock 134Confederate Violet 138 Curlycup Gumweed 97Convallaria majalis 37 Currant - American Black* 119Convolvulus arvensis 29 Currant - Garden Red* 120

247

Name Page Name PageCursed Crowfoot 90 Dogwood - Pagoda* 66Cuscuta gronovii 121/192 Dogwood - Pale* 66Cylindrical Blazing Star 177 Dogwood - Redosier* 67Cypripedium acaule 163 Dogwood - Round-leaved* 67Cypripedium arietinum 163 Dortman’s Cardinalflower 30Cypripedium candidum 42 Dotted Bee-balm 181Cypripedium parviflorum v makasin 83 Dotted Blazing Star 177Cypripedium parviflorum v pubescens 83 Dotted Gayfeather 177Cypripedium reginae 164 Dotted Horsemint 181Cystopteris bulbifera 195 Dotted Smartweed 58Cystopteris fragilis 196 Downy Agrimony 86Dalea candida 51 Downy Arrowwood* 76Dalea purpurea 183 Downy Gentian 141Dalea villosa var. villosa 151 Downy Juneberry* 11Dame's Rocket - pink 153 Downy Phlox 155Dame’s Rocket - white 20 Downy Prairie Clover 151Dasiphora fruticosa 77 Downy Rattlesnake Plantain 53Datura stramonium 29 Downy Wood Mint 140/162Daucus carota 68 Downy Yellow Violet 83Delphinium carolinianum ssp virescens 30 Dragon-root 116Delphinium exaltatum - blue 141 Dragon’s-mouth 161Delphinium exaltatum - white 30 Drosera anglica 51Dennstaedtia punctilobula 202 Drosera intermedia 52Dense Blazing Star 178 Drosera rotundifolia 52Deparia acrostichoides 196 Drumheads 184Desmodium canadense 172 Drymocallis arguta 16Desmodium glutinosum 172 Dryopteris carthusiana 196Devil’s Beggartick 95 Dryopteris clintoniana 202Dewberry* 24 Dryopteris cristata 197Dicentra canadensis 42 Dryopteris expansa 202Dicentra cucullaria 42 Dryopteris filix-mas 197Diervilla lonicera - pink 164 Dryopteris goldiana 197Diervilla lonicera - yellow 85 Dryopteris marginalis 198Digitalis lanata 164 Dutchman’s Breeches 42Dioscorea villosa 51/122 Dwarf Birch* 207Diplazium pycnocarpon 202 Dwarf Blazing Star 177Dirca palustris 88 Dwarf Crested Iris 138Ditch Crowfoot 90 Dwarf Elm* 213Ditch Stonecrop 123 Dwarf False Indigo 182Dodder 121 Dwarf Red Blackberry* 25Dodecatheon meadia 16/153 Dwarf Red Raspberry* 25Doellingeria umbellata var. pubens 45 Early Coralroot 88Dog Fennel 44 Early Goldenrod 107Dogbane 34 Early Meadow-rue 124Dogtooth Violet 84 Eastern Arborvitae* 229Dogwood - Gray* 67 Eastern Bluestar 135

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Name Page Name PageEastern Daisy Fleabane 45 European Cranberry* 76Eastern Hemlock* 227 European Mountain Ash* 224Eastern Leatherwood* 88 Eurybia divaricata 46Eastern Prickly Gooseberry* 120 Eurybia macrophylla - blue 148Eastern Purple Coneflower 180 Eurybia macrophylla - white 47Eastern Redbud* 208 Euthamia graminifolia 96Eastern Redcedar* 229 Eutrochium maculatum 186Eastern Swamp Saxifrage 128 Eutrochium purpureum 187Eastern Teaberry 42 Evening Primrose 85Eastern Wahoo* 153 Everlasting Pea 173Eastern Waterleaf 142 Eyebright 38Eastern White Pine* 228 Fagus grandifolia 209Ebony Spleenwort 201 Fairy Slipper Orchid 162Echinacea angustifolia 180 Fallopia cilinodis 52Echinacea pallida 180 Fallopia convolvulus 53/172Echinacea purpurea 180 Fallopia japonica 53Echinocystis lobata 52 False Acacia* 224Edible Valerian 59 False Aster 45Elderberries 72,73,184 False Blue Indigo 147Elecampane 100 False Boneset 65Elm-leaved Goldenrod 109 False Dragonhead 32,167Enchanter’s Nightshade 37 False Lily of the Valley 55Enemion biternatum 16 False Rue Anemone 16English Sundew 51 False Solomon’s Seal 55Epigaea repens 16 False White Indigo 43Epilobium coloratum 141/164 Fanweed 40Epipactis helleborine 165 Fen Grass of Parnassus 22Equisetum arvense 127/193 Feverfew 50Equisetum fluviatile 128/194 Few-leaved Sunflower 98Erechtites hieraciifolius 88 Field Bindweed 29Erect Carrion Flower (Upright) 132 Field Horsetail 127/193Erigeron annuus 45 Field Pennycress 40Erigeron philadelphicus 46 Field Pussytoes 63Erigeron strigosus 46 Field Sage-wort 126Eryngium yuccifolium 68/132 Field Sow Thistle 109Erysimum asperum 89 Filipendula rubra 187Erythronium albidum 17 Filipendula ulmaria 69Erythronium americanum 84 Fire Pink 189Erythronium propullans 165 Fireweed 152Euonymus atropurpureus 153 Fireweed (Burnweed) 88Euonymus obovatus 114 Flame Azalea* 191Eupatorium perfoliatum 68 Flat-topped Aster 45Euphorbia corollata 17 Flat-topped Goldenrod 96Euphorbia cyathophora 165 Fleabane - Annual Daisy 45Euphorbia virgata (old esula) 115 Fleabane - Lesser Daisy 46European Bellflower 145 Fleabane - Philadelphia 46

249

Name Page Name PageFlowering Raspberry 25 Gaura biennis 19Flowering Spurge 17 Gayfeathers - see Blazing Stars 176Foamflower 40 Gaywings 168Foamy Bells 183 Gentian - Closed (Blue Bottle) 141Fool’s Parsley 61 Gentian - Downy 141Forget-me-not 136 Gentian - Fringed 142Four-flower Loosestrife 79 Gentian - Lesser Fringed 142Foxglove Beardtongue 31 Gentian - Plain (Yellowish) 42Fragaria vesca 17 Gentiana alba 42Fragaria virginiana 17 Gentiana andrewsii 141Fragile Bladder Fern 196 Gentiana clausa 141Fragrant Bedstraw 19 Gentiana flavida 42Fragrant False Indigo 182 Gentiana puberulenta 141Fragrant Sumac 129 Gentianella quinquefolia 142Frangula alnus 122 Gentianopsis crinita 142Fraxinus americana 222 Gentianopsis virgata var. virgata 142Fraxinus nigra 222 Geranium maculatum 153Fraxinus pennsylvanica 223 Geum aleppicum 78Fringe Tree* 208 Geum canadense 19Fringed Black Bindweed 52 Geum macrophyllum 78Fringed Gentian 142 Geum rivale 170Fringed Loosestrife 79 Geum triflorum 192Fringed Polygala 168 Giant Goldenrod 106Fringeleaf Wild Petunia 144 Giant Ragweed 121Frost Grape* 131 Giant Sunflower 97Fumewort 163 Ginseng - American 71Gaillardia aristata 96 Glade Fern 202Galax 53 Glade Mallow 70Galax urceolata 53 Glechoma hederacea 142Galearis spectabilis 37/165 Glossy Buckthorn* 122Galinsoga quadriradiata 47 Glossy Leaf Aster 49Galium aparine 18 Goat’s Rue 94Galium asprellum 18 Golden Alexanders 113Galium boreale 18 Golden Ragwort 101Galium concinnum 18 Golden Zizia 113Galium trifidum 19 Goldenrod - Early 107Galium triflorum 19 Goldenrod - Elm-leaved 109Garden Currant* 120 Goldenrod - Giant 107Garden Monkshood 139 Goldenrod - Grass-leaved 96Garden Phlox - pink 155 Goldenrod - Gray 107Garden Phlox - white 71 Goldenrod - Late 106Garden Valerian 74 Goldenrod - Missouri 107Garlic Mustard 34 Goldenrod - Northern Bog 108Gaultheria hispidula 38 Goldenrod - Old Field 107Gaultheria procumbens 42 Goldenrod - Riddell's 108Gaura (Biennial) 19 Goldenrod - Showy 108

250

Name Page Name PageGoldenrod - Stiff 108 Hamamelis virginiana 113Goldenrod - Tall 106 Hard Maple* 216Goldenrod - Wreath 106 Harebell 145Goldenrod - Zigzag 106 Hawkweed - Rough (Canada) 100Goldenseal 134 Hawthorn* 209Goldie’s Wood Fern 197 Hay-scented Fern 202Goodyera pubescens 53 Hazelnut* 127Goodyera repens 53 Heal-all 184Gooseberry - Eastern Prickly* 120 Heart-leaved Aster - blue 149Gooseberry - Missouri* 92,120 Heart-leaved Aster - white 48Grape Woodbine (Woodbine) 115 Heart-leaved Four O'clock 154Grass-leaved Goldenrod 96 Heartleaf Foamflower 40Gray Dogwood 67 Heartleaf Four O'clock 154Gray Goldenrod 107 Heartleaf Twayblade 117Gray-headed Coneflower 102 Hearts-ease 183Great Angelica 62 Hedge Bindweed 29Great Blue Lobelia 143 Hedyotis longifolia 38Great Indian Plantain 64 Helenium autumnale 97Great Plains Fringed Gentian 142 Helianthus giganteus 97Great Ragweed 121 Helianthus hirsutus 98Great Solomon’s Seal 119 Helianthus occidentalis 98Grecian Foxglove 164 Helianthus pauciflorus 98Greek Valerian 143 Helianthus strumosus 99Green Adder's Mouth 117 Helianthus tuberosus 99Green Ash* 223 Heliopsis helianthoides var. scraba 99Green Dragon 116 Helleborine 165Green Fringed Orchid 119 Helmet Flower 139Green-briers 133 Hemerocallis fulva 189Green-headed Coneflower 103 Hemerocallis lilioasphodelus 84Grindelia squarrosa 97 Hemlock Spruce* 227Grooved Agrimony 87 Henbit Deadnettle 165Ground Cherries 91-92 Hepatica - Round-lobed 12Ground Ivy 142 Hepatica - Sharp-lobed 12Groundnut 182 Hepatica - Sharp-lobed - blue 135Gymnocarpium dryopteris 202 Hepatica - Sharp-lobed - pink 152Gymnocladus dioicus 225 Heracleum maximum 69Hackberry* 208 Hesperis matronalis - pink 153Hackelia virginiana 54 Hesperis matronalis - white 20Hairy False Golden-aster 100 Heterotheca villosa 100Hairy Golden-aster 100 Heuchera americana v. hirsuticaulius 116Hairy Ruellia 144 Heuchera richardsonii 117Hairy Sunflower 98 Hibiscus laevis 30Hairy Sweet Cicely 70 Hieracium aurantiacum 193Hairy Vetch 148 Hieracium umbellatum 100Hairy Wood Mint 140/162 Highbush Cranberry* 75Halberdleaf Rosemallow 30 Hill's Oak* 218

251

Name Page Name PageHispid Buttercup 82 Jack-go-to-bed-at-noon 110Hoary Alyssum 34 Jack-in-the-pulpit 116Hoary Puccoon 85 Jacob's-ladder 143Hoary Vervain 185 Japanese Hedge Parsley 73Hoary Wood Mint 140/162 Japanese Knotweed 53Hog Peanut 43/147 Jeffersonia diphylla 20Honewort 68 Jerusalem Artichoke 99Hooded Coralroot 188 Jewelweed - Pale 85Hooded Lady's-tresses 59 Jewelweed - Spotted 85Hooked Crowfoot 90 Jimsonweed 29Hooker’s Orchid 118 Joe-Pye Weed - Spotted 186Hop Tree* 220 Joe-Pye Weed - Sweet 187Hophornbeam* 209 Juglans cinerea 223Horse Gentian 191 Juglans nigra 223Horseflyweed 93 Juneberries* 11Horseheal 100 Juniperus virginiana 229Horsemint - Dotted 181 Kalmia latifolia 69Houstonia longifolia 38,78 Kentucky Coffeetree* 225Humulus lupulus 133 Kidney-leaved Violet 29Huron Green Orchid 118 Kidneyleaf Buttercup 89Hydrastis canadensis 134 Kinnickinick 41Hydrophyllum virginianum 142 Kitten Tails 111Hylotelephium telephium 187 Labrador Tea* 72Hypericum perforatum 78 Lactuca biennis 146Hypericum pyramidatum 78 Lactuca canadensis 101Hypoxis hirsuta 78 Lactuca serriola 101Hyssop - Blue Giant 139 Lady Fern 195Hyssop - Purple Giant 139 Lady Slippers 42,83,163Hyssop - Yellow 84 Lady's-tresses 59Ilex verticillata 20 Lamium amplexicaule 165Illinois Rose* 158 Lance-leaf Tickseed 95Impatiens capensis 85 Lance-leaved Violet 28Impatiens pallida 85 Lanceleaf Figwort 168Indian Hemp 34 Laportea canadensis 128Indian Paintbrush - Scarlet 192 Larch* 227Indian Pipe 43/192 Large Twayblade 166Indigos 43,93,147 Large-flowered Beardtongue 166Interrupted Fern 199 Large-flowered Bellwort 93Inula helenium 100 Large-headed Blazing Star 177Iris cristata 138 Large-leaf Avens 78Iris pseudacorus 84 Large-leaved Aster 148Iris versicolor 138 Large-toothed Aspen* 210Ironweed 188 Larix laricina 227Ironwood* 209 Larkspur Violet 137Ivy - Ground Ivy 142 Late Goldenrod 106Jack Pine* 228 Late Horse Gentian 191

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Name Page Name PageLathyrus latifolius 173 Liparis loeselii 91Lathyrus ochroleucus 44 Listera auriculata 117Lathyrus palustris 173 Listera convallarioides 117Lathyrus venosus 173 Listera cordata 117Lawn Prunella 184 Lithospermum canescens 85Leadplant 151/182 Lithospermum incisum 85Leafy Green Orchis 117 Littleleaf Buttercup 89Leafy Spurge 115 Live Forever 187Leatherleaf 41 Liver-leaf Wintergreen 168Lemna minor 134 Lobelia - Cardinal Flower 191Leonurus cardiaca 54/181 Lobelia - Dortman's 30Lepidium densiflorum 122 Lobelia - Great Blue 143Lespedeza capitata 54 Lobelia - Pale Spike 31Lesser Burdock 171 Lobelia - Water 30Lesser Duckweed 134 Lobelia cardinalis 191Lesser Fringed Gentian 142 Lobelia dortmanna 30Lesser Rattlesnake Plantain 53 Lobelia siphilitica 143Leucanthemum vulgare 47 Lobelia spicata 31Liatris aspera 176 Loesel's Twayblade 91Liatris cylindracea 177 Long Beech Fern 203Liatris ligulistylis 177 Long-headed Coneflower 102Liatris pilosa 177 Long-leaved Bluet 38Liatris punctata 177 Long-leaved Chickweed 27Liatris pycnostachya 177 Long-styled Sweet Cicely 71Liatris scariosa var. novae-angliae 178 Longbract Frog Orchid 117Liatris spicata 178 Longbract Wild Indigo 44Liatris squarrosa 178 Longleaf Ground Cherry 92Lilac Penstemon 166 Lonicera dioica 166Lilium canadense 84 Lonicera tatarica 31Lilium michiganense 190 Loosescale Gayfeather 178Lilium philadelphicum 190 Loosestrife - Four-flower 79Lilium superbum 190 Loosestrife - Fringed 79Lily - Blackberry 189 Loosestrife - Purple 154Lily - Canada 84 Loosestrife - Tufted 111Lily - Michigan 190 Loosestrife - Whorled 79Lily - Orange Day Lily 189 Loosestrife - Yellow 80Lily - Turk's-cap 190 Lopseed 32/167Lily - Wood 190 Lotus corniculatus 91Lily - Yellow Day Lily 84 Lupinus perennis 147Lily of the Valley 37 Lycopus americanus 55Limber Honeysuckle* 166 Lycopus uniflorus 55Linaria vulgaris 91 Lysimachia borealis 20Lingonberry* 43 Lysimachia ciliata 79Linnaea borealis ssp. americana 30/166 Lysimachia nummularia 79Lion's Foot 168 Lysimachia quadriflora 79Liparis liliifolia 166 Lysimachia quadrifolia 79

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Name Page Name PageLysimachia terrestris 80 Milkweed - Poke 64Lysimachia thyrsiflora 111 Milkweed - Swamp 186Lythrum alatum 154 Milkweed - Whorled 64Lythrum salicaria 154 Mimulus ringens var. ringens 143/166Macloskey’s Violet 28 Minnesota Dwarf Troutlily 165Mad-dog Skullcap 144 Mirabilis nyctaginea 154Maianthemum canadense 55 Missouri Goldenrod 107Maianthemum racemosum 55 Missouri Gooseberry* 92/120Maianthemum stellatum 56 Mitchella repens 21Maidenhair Spleenwort 201 Mitella diphylla 38Malaxis unifolia 117 Miterwort 38Male Fern 197 Moccasin Flower 163Maltese Cross 189 Mock Orange* 22Many Flowered Aster 48 Moehringia lateriflora 21Marginal Wood Fern 198 Monarda fistulosa 178Marsh Bellflower 35 Monarda media 179Marsh Blue Violet 137 Monarda punctata 181Marsh Cinquefoil 152 Moneses uniflora 21Marsh Fern 200 Moneywort 79Marsh Hedgenettle 182 Monkey Flower 143/166Marsh Marigold 77 Monotropa uniflora 43/192Marsh Pea 173 Moonseed 38Marsh Skullcap 144 Moosewood* 215Marsh St. Johnswort 169 Motherwort 54/181Marsh Vetchling 173 Mountain Cranberry* 43Matteuccia struthiopteris 198 Mountain Laurel* 69Mayapple 22 Mountain Maple* 217Meadow Evening Primrose 86 Mountain Mint 72Meadow Goatsbeard 110 Mountain Woodsorrel 22/155Meadow-fern (Sweet Gale) 128 Mouse-ear Chickweed 14Meadowsweet* 73 Mullein 111Medicago lupulina 112 Muscle-wood* 207Melilotus alba 56 Myosotis scorpioides 136Melilotus officinalis 93 Myrica gale 128Menispermum canadense 38 Myrrhis odorata 70Mentha aquatica-spicata 56 Nannyberry* 75Mentha arvensis 57/181 Napaea dioica 70Mentha x piperita 56 Narrow Beech Fern 203Menyanthes trifoliata 21 Narrow-leaf Blue-eyed Grass 136Merrybells 93 Narrow-leaf Coneflower 180Mertensia virginica 143 Narrow-leaved Cattail 194Michigan Lily 190 Narrow-leaved Puccoon 85Micranthes pensylvanica 128 Narrow-leaved Spleenwort 202Milkvetch - Canada 126 Narrow-leaved Sundew 52Milkweed - Butterfly weed 194 Narrowleaf Hawksbeard 96Milkweed - Common 186 Narrowleaf Evening Primrose 86

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Name Page Name PageNarrowleaf Meadowsweet* 73 Old-field Goldenrod 107Narrowleaf Stoneseed 85 Old-man's Beard* 208Nepeta cataria 57 Oligoneuron rigidum 108Nettle - Stinging 131 One-flowered Pyrola 21Nettle - Wood 128 Onoclea sensibilis 198New England Aster 179 Ontario Aster 49New England Blazing Star 178 Orange Coneflower 102New Jersey Tea* 65 Orange Day Lily 189New York Fern 204 Orange Hawkweed 193Night-flowering Catchfly 32 Osmorhiza claytonii 70Nightshade - Black 39 Osmorhiza longistylis 71Nightshade - Climbing 159 Osmunda claytoniana 199Nightshade - Enchanters 37 Osmunda regalis 199Nightshade - Small Enchanters 37 Osmundastrum cinnamomeum 199Ninebark* 72 Ostrich Fern 198Nodding Bur Marigold 94 Ostrya virginiana 209Nodding Lady’s tresses 59 Oxalis dillenii 80Nodding Smartweeed 57 Oxalis montana 22/155Nodding Wakerobin 27 Oxalis stricta 80Nodding Wild Onion 61/185 Oxalis violacea 155Northern Bedstraw 18 Oxeye Daisy 47Northern Blazing Star 178 Packera aurea 101Northern Bog Goldenrod 108 Packera plattensis 101Northern Bog Orchid 118 Pagoda Dogwood* 66Northern Bush Honeysuckle* - pink 164 Pale Beardtongue 31Northern Bush Honeysuckle*- yellow 85 Pale Corydalis 163Northern Dewberry* 24 Pale Dogwood* 66Northern Green Orchid 117,118 Pale Green Orchid 118Northern Maidenhair Fern 195 Pale Purple Coneflower 180Northern Pin Oak* 218 Pale Smartweed 57Northern Red Oak* 219 Pale Yellow Iris 84Northern Water Plantain 11 Pale-spike Lobelia 31Northern White Cedar* 229 Paleleaf Sunflower 99Northern Wood Fern 202 Paleleaf Woodland Sunflower 99Norway Maple* 215 Panax quinquefolius 71Norway Pine* 228 Paper Birch* 206Norway Spruce* 226 Parnassia glauca 22Norwegian Cinquefoil 80 Parthenium integrifolium 71Obedient Plant - pink 167 Parthenocissus quinquefolia 115Obedient Plant - white 32 Parthenocissus vitacea 115Oenothera biennis 85 Partridge Berry 21Oenothera fruticosa 86 Partridge Pea 77Oenothera pilosella 86 Pasque Flower 13Ohio Buckeye* 221 Pastinaca sativa 112Ohio Spiderwort 146 Pasture Rose* 157Old Man's Whiskers 192 Pearly Everlasting 62

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Name Page Name PagePedicularis canadensis 86 Pilea pumila 128Pediomelum argophyllum 148 Pin Cherry* 211Pellaea atropurpurea 203 Pin Oak* 219Pennsylvania Bitter-cress 36 Pinus banksiana 228Pennsylvania Buttercup 90 Pinus resinosa 228Penstemon digitalis 31 Pinus strobus 228Penstemon gracilis 166 Pinus sylvestris 229Penstemon grandiflorus 166 Pipsissewa 170Penstemon pallidus 31 Plain Gentian 42Penthorum sediodes 123 Plains Cottonwood* 210Pepper Grass 122 Plains Wild Indigo 44Peppermint 56 Plantago major 129Perennial Pea 173 Plantain - Common 129Perennial Sow Thistle 109 Plantain - Great Indian 64Periwinkle 136 Plantain-leaf Pussytoes 63Persicaria amphibia 183 Platanthera aquilonis 117Persicaria lapathifolia 57 Platanthera clavellata 118Persicaria maculosa 183 Platanthera flava 118Persicaria punctata 58 Platanthera hookeri 118Persicaria sagittata 58 Platanthera huronensis 118Peruvian Daisy 47 Platanthera lacera 119Phegopteris connectilis 203 Platanthera obtusata 119Phegopteris hexagonoptera 203 Platanthera orbiculata 119Philadelphus sp. 22 Platanthera psycodes 167Phlox - Downy 501 Pleurisy Root 194Phlox - Garden (pink) 155 Podophyllum peltatum 22Phlox - Garden (white) 71 Pogonia ophioglossoides 167Phlox - Summer (pink) 155 Pointed-leaved Ticktrefoil 172Phlox - Wild Blue 136 Poison Ivy 130Phlox - Wild Sweet William 155 Poke Milkweed 64Phlox divaricata 136 Polemonium reptans 143Phlox maculata 155 Polygala cruciata 184Phlox paniculata - pink 155 Polygala paucifolia 168Phlox paniculata - white 71 Polygala polygama - pink 184Phlox pilosa 155 Polygala polygama - white 58Photinia melanocarpa 14 Polygala sanguinea 184Phryma leptostachya 32/167 Polygala senega 58Physalis heterophylla 91 Polygala verticillata 58Physalis longifolia var. longifolia 92 Polygonatum biflorum 119Physalis virginiana 92 Polygonum cilinode 52Physocarpus opulifolius 72 Polygonum punctatum 58Physostegia virginiana - pink 167 Polypodium virginianum 203Physostegia virginiana - white 32 Polystichum acrostichoides 200Picea abies 226 Polystichum braunii 204Picea glauca 226 Populus alba 217Picea mariana 226 Populus balsamifera ssp. balsamifera 210

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Name Page Name PagePopulus deltoides subsp. monilifera 210 Purple Cliff Brake 203Populus grandidentata 210 Purple Coneflower 180Populus tremuloides 211 Purple Flowering Raspberry* 159Potentilla argentea 80 Purple Fringed Orchid - Lesser 167Potentilla arguta (Drymocallis) 16 Purple Giant Hyssop 139Potentilla norvegica 80 Purple Loosestrife 154Potentilla recta 81 Purple Marshlocks 152Potentilla simplex 81 Purple Meadow Rue 124Prairie Birdsfoot Violet 137 Purple Milkwort 184Prairie Blazing Star 177 Purple Pitcher Plant 170Prairie Buttercup 82 Purple Prairie Clover 183Prairie Cinquefoil 16 Purple Rattlesnake Root 168Prairie Coneflower 102 Purple-stem Beggartick 95Prairie Dock 105 Purplestem Angelica 62Prairie Fleabane 46 Purplestem Aster - blue 150Prairie Ironweed 188 Purplestem Aster - white 49Prairie Larkspur 30 Purplestem Aster 150Prairie Loosestrife 79 Pussy Willow* - catkins 58Prairie Ninebark * 72 Pussy Willow* - female catkin 130Prairie Ragwort 101 Pussy Willow* - male catkin 112Prairie Rocket 89 Pussytoes 63Prairie Rosinweed 105 Putty Root 161Prairie Sage 50 Pycnanthemum virginianum 72Prairie Smoke 192 Pyrola americana 38Prairie Sundrops 86 Pyrola asarifolia 168Prairie Wild Rose* 156 Quaking Aspen* 211Prenanthes alba 168 Queen Anne’s Lace 68Prenanthes racemosa 168 Queen of the Meadow 69Prickly Gooseberry* 120 Queen of the Prairie 187Prickly Lettuce 101 Quercus alba 217Prickly Rose* 156 Quercus bicolor 218Prickly Sow Thistle 109 Quercus coccinea 218Prickly-ash* 125 Quercus ellipsoidalis 218Pride of Ohio 16,153 Quercus macrocarpa 219Prince’s-pine 170 Quercus muehlenbergii 212Prunella vulgaris 184 Quercus palustris 219Prunus americana 211 Quercus rubra 219Prunus pensylvanica 211 Quercus velutina 220Prunus pumila 22 Racemed Milkwort 184Prunus serotina 212 Racemed Milkwort - pink 184Prunus virginiana 23 Racemed Milkwort - white 58Ptelea trifoliata 220 Ragweed - Common 121Pteridium aquilinum var. latiusculum 200 Ragweed - Giant 121Pulsatilla nuttalliana 13 Ragwort - Golden 101Purple Avens 170 Ragwort - Prairie 101Purple Bergamot 179 Rampion Bellflower 145

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Name Page Name PageRam's head Lady’s Slipper 163 River Birch* 206Ranunculus abortivus 89 Riverbank Grape* 131Ranunculus acris 81 Robinia pseudoacacia 224Ranunculus flammula 82 Rock Elm* 214Ranunculus hispidus var. nitidus 82 Rock Harlequin 163Ranunculus pensylvanicus 90 Rock Maple* 216Ranunculus recurvatus 90 Rocky Mountain Blazing Star 177Ranunculus rhomboideus 82 Rosa acicularlis 156Ranunculus scelaratus 90 Rosa arkansana 156Raspberry - Black 24 Rosa blanda 157Raspberry - Dwarf Red 25 Rosa carolina 157Raspberry - Flowering 25 Rosa palustris 158Raspberry - Purple Flowering 159 Rosa setigera 158Raspberry - Swamp 25 Rosa woodsii 158Raspberry - Wild Red 24 Rose Pogonia 167Ratibida columnifera 102 Roses - Wild* 157ffRatibida pinnata 102 Rosinweed 104Rattlesnake Fern 201 Rough Bedstraw 18Rattlesnake Grape Fern 201 Rough Cinquefoil 80Rattlesnake Master 68,132 Rough Gayfeather 176Rattlesnake Plantains 53 Rough Hawkweed 100Red Ash* 223 Rough-fruited Cinquefoil 81Red Birch* 206 Rough-leaved Sunflower 99Red Chokeberry* 13 Round-headed Bush clover 54Red Clover 187 Round-headed Lespedeza 54Red Columbine 191 Round-leaved Dogwood 67Red Elderberry* 73,184 Round-leaved Orchid - Lesser 119Red Elm* 214 Round-leaved Pyrola 38Red Maple* 216 Roundleaf Greenbrier 133Red Pine* 228 Roundleaf Orchid 33Red Turtlehead 162 Roundleaf Sundew 52Red-stemmed Aster 150 Royal Catchfly 189Redosier Dogwood* 67 Royal Fern 199Rhamnus alnifolia 123 Rubus allegheniensis 23Rhamnus cathartica 123 Rubus flagellaris 24Rhododendron calendulaceum 191 Rubus idaeus 24Rhododendron groenlandicum 72 Rubus occidentalis 24Rhus aromatica 129 Rubus odoratus 159Rhus glabra 129 Rubus parviflorus 25Rhus typhina (old hirta ) 130 Rubus pubescens 25Ribes americanum 119 Rubus semisetosus 25Ribes cynosbati 120 Rubus setosus 25Ribes missouriense 92/120 Rudbeckia fulgida 102Ribes rubrum 120 Rudbeckia hirta 102Richardson’s Alumroot 117 Rudbeckia laciniata 103Riddell’s Goldenrod 107 Rudbeckia subtomentosa 103

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Name Page Name PageRudbeckia triloba 103 Short’s Aster 151Rue Anemone 160 Showy Beardtongue 166Ruellia humilis 144 Showy Coneflower 102Rumex crispus 134 Showy Goldenrod 108Running Myrtle 136 Showy Lady's Slipper 164Running Strawberry Bush 114 Showy Mountain Ash* 225Rusty Cliff Fern 204 Showy Orchis 37/165Rusty Woodsia 204 Shrubby Cinquefoil* 77Sagittaria latifolia 25 Shrubby Five-fingers* 26Salix discolor 58 Sibbaldiopsis tridentata 26Salix discolor - female catkin 130 Siberian Elm* 213Salix discolor - male catkin 112 Sicyos angulatus 26Salix nigra 212 Side-flowering Aster 49Sambucus nigra ssp. canadensis 72,73 Silene chalcedonica 189Sambucus racemosa 73,184 Silene latifolia 32Sanguinaria canadensis 26 Silene noctiflora 32Saponaria officinalis - pink 159 Silene regia 189Saponaria officinalis - whit e 26 Silene stellata 33Sarracenia purpurea 170 Silene virginica 189Sarsaparilla 131 Silky Aster 150/179Savin* 229 Silky Dogwood 66Scarlet Catchfly 189 Silky Prairie Clover 151Scarlet Lychnis 189 Silphium integrifolium 104Scarlet Oak* 218 Silphium laciniatum 104Scilla siberica 139 Silphium perfoliatum 105Scotch Pine* 229 Silphium terebinthinaceum 105Scrophularia lanceolata 168 Silver Buffaloberry* 82Scurf-pea 148 Silver Maple* 216Scutellaria galericulata 144 Silvery Cinquefoil 80Scutellaria lateriflora 144 Silvery False Spleenwort 196Self-heal (Heal-all) 184 Silvery Scurf-pea 148Seneca Snakeroot 58 Single Delight 21Senna hebecarpa 94 Sissileleaf Bellwort 171Sensitive Fern 198 Sisyrinchium angustifolium 136Serviceberry - Downy* 11 Skullcap - Mad-dog 144Serviceberry - Running* 12 Skullcap - Marsh 144Serviceberry - Saskatoon* 11 Skunk Cabbage 188Serviceberry - Shadblow* 11 Sky Blue Aster 150Shagbark Hickory* 221 Slender Lady's-tresses 59Shaggy Blazing Star 177 Slender Yellow Wood Sorrel 80Shaggy Soldier 47 Slippery Elm* 214Shepherd’s Purse 35 Small Enchanter’s Nightshade 36Shepherdia argentea 82 Small Green Wood Orchid 118Shining Bedstraw 18 Small White Lady’s-slipper 42Shinleaf 38 Small White Violet 28Shooting Star 16/153 Small Yellow Wild Indigo 93

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Name Page Name PageSmartweed - Dotted 58 Spinulose Wood Fern 196Smilax ecirrhata 132 Spiny Sow Thistle 109Smilax lasioneura 132 Spiraea alba 73Smilax rotundifolia 133 Spiraea tomentosa 185Smilax tamnoides 133 Spiranthes cernua 59Smooth Blue Aster 149 Spiranthes lacera 59Smooth Oxeye 99 Spiranthes romanzoffiana 59Smooth Rattlesnake Root 168 Spotted Bee-balm 181Smooth Rockcress 35/116 Spotted Coralroot 163Smooth Rose Mallow 30 Spotted Geranium 153Smooth Rose* 157 Spotted Knapweed 175Smooth Solomon's Seal 119 Spotted Lady’s-thumb 183Smooth Sumac 129 Spotted Water Hemlock 66Snakemouth Orchid 167 Spreading Dogbane 34/169Sneezeweed 97 Spreading Wood Fern 202Snowberry* 170 Squirrel Corn 42Soapwort - Pink 159 St. Johnswort - Common 78Soapwort - White 26 St. Johnswort - Great 78Soft Maple* 216 St. Johnswort - Marsh 169Solanum dulcamara 146/159 Stachys palustris 182Solanum nigrum 39 Staghorn Sumac 130Solanum plycanthemum 39 Staphylea trifolia 39Solidago altissima 106 Starflower 20Solidago caesia 106 Starry Campion 33Solidago flexicaulis 106 Starry False Solomon’s Seal 56Solidago gigantea 106 Starweed 27Solidago juncea 107 Starwort 27Solidago missouriensis 107 Steeplebush* 185Solidago nemoralis 107 Stellaria longifolia 27Solidago riddellii 107 Stellaria media 27Solidago rigida 108 Stemless Lady’s Slipper 163Solidago speciosa 108 Stickywilly 18Solidago uliginosa 108 Stiff Coreopsis 95Solidago ulmifolia 109 Stiff Gentian 142Sonchus arvensis 109 Stiff Goldenrod 108Sonchus asper 109 Stiff Sunflower 98Sorbus americana 224 Stiff Tickseed 95Sorbus aucuparia 224 Stiff-haired Sunflower 98Sorbus decora 225 Stinging Nettle 131Southern Arrowwood* 74 Stinking Chamomile 44Sow Thistles 109 Stinkweed 40Sparganium eurycarpum 133 Strawberry - Virginia 17Spear thistle 176 Strawberry - Woodland 17Spearwort Buttercup 82 Strawberry-blite 192Speckled Alder* 205 Striped Maple* 215Spiked Blazing Star 178 Strophostyles helvola 174

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Name Page Name PageStylophorum diphyllum 83 Symphyotrichum puniceum - blue 150Sugar Maple* 216 Symphyotrichum puniceum - white 49Sumac - Fragrant* 129 Symphyotrichum sericeum 150/179Sumac - Smooth* 129 Symphyotrichum shortii 151Sumac - Staghorn* 130 Symphyotrichum urophyllum 50Summer Coralroot 163 Symphytum officinale 169Summer Phlox 155 Symplocarpus foetidus 188Sundews 51,52 Tall Bellflower 145Sunflowers 97ff Tall Blue Lettuce 146Swamp Alder* 205 Tall Buttercup 81Swamp Beggartick 95 Tall Drymocallis 16Swamp Birch* 207 Tall Goldenrod 106Swamp Blackberry* 25 Tall Larkspur - blue 141Swamp Buttercup 82 Tall Larkspur - white 30Swamp Candles 80 Tall Meadow Rue 124Swamp Maple* 216 Talus Slope Penstemon 31Swamp Milkweed 186 Tamarack* 227Swamp Raspberry* 25 Tanacetum parthenium 50Swamp Rose* 158 Tanacetum vulgare 110Swamp Saxifrage 128 Tansy 110Swamp Vervain 151 Taraxacum officinale 110Swamp White Oak* 218 Tatarian Honeysuckle* 31Sweet Birch* 206 Taxus canadensis 227Sweet Black-eyed Susan 103 Tephrosia virginiana 94Sweet Cicely 70 Teucrium canadense 33Sweet Fern* 126/192 Thalictrum dasycarpum 124Sweet Flag 125 Thalictrum dioicum 124Sweet Gale* 128 Thalictrum thalictroides 160Sweet Rocket (pink) 153 Thalictrum venulosum 124Sweet Rocket (white) 20 Thelypteris noveboracensis 204Sweet Scented Joe-Pye Weed 187 Thelypteris palustris var. pubescens 200Sweet White Violet 28 Thimbleberry 25Symphoricarpos albus 170 Thimbleweed - Candle Anemone 125Symphoricarpos occidentalis 39 Thimbleweed -Tall 125Symphoricarpos orbiculatus 40/171 Thin-leaved Coneflower 103Symphyotrichum cordifolium - blue 149 Thistle - Bull 176Symphyotrichum cordifolium - white 48 Thistle - Canada 175Symphyotrichum ericoides 48 Thistle - Field 175Symphyotrichum firmum 49 Thistle - Swamp 176Symphyotrichum laeve var. laeve 149 Thlaspi arvense 40Symphyotrichum lanceolatum 48 Three-toothed Cinquefoil 26Symphyotrichum lateriflorum 49 Threeleaf Goldthread 15Symphyotrichum novae-angliae 179 Threelobed Bedstraw 19Symphyotrichum oblongifolium 149 Thuja occidentalis 229Symphyotrichum ontarionis 49 Thyme-leaf Speedwell 41/146Symphyotrichum oolentangiense 150 Tiarella cordifolia 40

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Name Page Name PageTicktrefoil - Pointed-leaved 172 True Forget-me-not 136Ticktrefoil - Showy 172 Tsuga canadensis 227Tilia americana 213 Tuberous Grasspink 162Tobacco Root 59 Tufted Loosestrife 111Toothed Wood Fern 196 Turk’s-cap Lily 190Toothwort - Cut-leaved 36 Turtlehead 41Toothwort - Two-leaved 36 Twayblades 91/117Torilis japonica 73 Twinflower 30/166Touch-me-not - Pale 85 Twinleaf 20Touch-me-not - Spotted 85 Twoleaf Miterwort 38Toxicodendron rydbergii 130 Typha angustifolia 194Tradescantia bracteata 160 Typha latifolia 194Tradescantia ohiensis 146 Ulmus americana 213Tragopogon dubius 110 Ulmus pumila 213Tragopogon lamottei 110 Ulmus rubra 214Tragopogon pratensis 110 Ulmus thomasii 214Trailing Arbutus 16 Upright Carrion Flower 132Trailing Wild Bean 174 Urtica dioica 131Trembling Aspen* 211 Uvularia grandiflora 93Triadenum fraseri 169 Uvularia sessilifolia 171Trientalis borealis 20 Vaccinium vitis-idaea 43Trifolium pratense 187 Valeriana edulis 59Trifolium repens 74 Valeriana officinalis 74Trillium - Drooping 27 Veiny Meadow Rue 124Trillium - Large-flowered 27 Veiny Pea 173Trillium - Nodding 27 Veiny Vetchling 173Trillium - Prairie 161 Verbascum thapsus 111Trillium - Purple 160 Verbena hastata 151Trillium - Snow 28 Verbena stricta 185Trillium - Sweet Betsy 160 Verbena urticifolia 59Trillium - Toadshade 161 Verbesina alternifolia 111Trillium - Yellow 86, 120 Vernonia fasciculata 188Trillium cernuum 27 Veronica americana 136Trillium cuneatum 160 Veronica serpyllifolia 41/146Trillium erectum 160 Veronicastrum virginicum 59Trillium flexipes 27 Vervain - Blue Swamp 151Trillium grandiflorum 27 Vervain - Hoary 185Trillium luteum 86, 120 Vervain - White 59Trillium nivale 28 Viburnum dentatum 74Trillium recurvatum 161 Viburnum lantana 74Trillium sessile 161 Viburnum lentago 75Triosteum perfoliatum 191 Viburnum opulus var. americanum 75Trout Lily 17,84,165 Viburnum opulus var. opulus 76Trout Lily - Dwarf 165 Viburnum rafinesquianum 76Trout Lily - White 17 Vicia americana 174Trout Lily - Yellow 84 Vicia villosa 148

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Name Page Name PageVinca minor 136 Water Lobelia 30Viola blanda var. palustriformis 28 Water Smartweed 183Viola canadensis 28 Wayfaring-tree* 74,75Viola cucullata 137 Western Oak Fern 202Viola lanceolata 28 Western Poison Ivy 130Viola macloskeyi 28 Western Sand Cherry* 22Viola pedata 137 Western Silver Aster 150/179Viola pedatifida 137 Western Sunflower 98Viola pubescens 83 Western Wallflower 89Viola renifola 29 White Arrowleaf Aster 50Viola sagittata 137 White Ash* 222Viola sororia 138 White Avens 19Viola sororia forma priceana 138 White Birch* 206Violet - Arrow-leaved 137 White Campion 32Violet - Bird's-foot 137 White Clover 74Violet - Canada 28 White Cockle 32Violet - Common Blue 138 White Doll’s Daisy 45Violet - Confederate 138 White Elm* 213Violet - Downy Yellow 83 White False Indigo 43Violet - Kidney-leaved 29 White Fawn Lily 17Violet - Lance-leaved 28 White Heath Aster 48Violet - Macloskey's 28 White Lady's Slipper 42Violet - Marsh 137 White Maple* 216Violet - Prairie Birdsfoot 137 White Oak* 217Violet - Sweet white 28 White Panicle Aster 48Violet Woodsorrel 155 White Pine* 228Virgin's Bower 15 White Popular* 217Virginia Bluebells 143 White Prairie Clover 51Virginia Creeper 115 White Rattlesnake Root 168Virginia Ground Cherry 92 White Sage 50Virginia Mountain Mint 72 White Snakeroot 61Virginia Raspberry* 159 White Spruce* 226Virginia Spring Beauty 15/152 White Sweet Clover 56Virginia Stickseed 54 White Trillium 27Virginia Tephrosia 94 White Troutlily 17Virginia Waterleaf 142 White Turtlehead 41Vitis riparia 131 White Vervain 59Wafer Ash* 220 White Walnut* 223Wahoo* 153 White Wood Aster 46Waldsteinia fragarioides 83 Wholeleaf Rosinweed 104Walking Fern 201 Whorled Loosestrife 79Water Arum 76 Whorled Milkweed 64Water Chickweed 27 Whorled Milkwort 58Water Hemlock 66 Widowsfrill 33Water Horsetail 128/194 Wild Bean (Groundnut) 182Water Knotweed 183 Wild Bergamot 178

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Name Page Name PageWild Black Currant* 119 Wood Nettle 128Wild Blue Phlox 136 Wood Poppy 83Wild Calla 76 Wood Sage 33Wild Columbine 191 Wood’s Rose* 158Wild Cucumber 52 Woodbine 115Wild Four O'clock 154 Woodmint - Downy 140/162Wild Garlic 185 Woodmint - Hairy 140/162Wild Geranium 153 Woodsia ilvensis 204Wild Ginger 169 Woodsia obutsa 204Wild Grape* 131 Woundwort 182Wild Honeysuckle* 166 Wreath Goldenrod 106Wild Hyacinth 14 xHeucherella tiarelloides 183Wild Leek 62 Yarrow 60Wild Lettuce 101 Yellow Avens 78Wild Lupine 147 Yellow Birch* 205Wild Mint 57/181 Yellow Clintonia 91Wild Oats 171 Yellow Coralroot 88Wild Onion 62/186 Yellow Day Lily 84Wild Parsnip 112 Yellow Dock 134Wild Pink 189 Yellow Flag Iris 84Wild Plum* 211 Yellow Giant Hyssop 84Wild Poinsettia 165 Yellow Goatsbeard 110Wild Quinine 71 Yellow Hawkweed 100Wild Red Raspberry* 24 Yellow Lady’s Slippers 83Wild Roses* 157ff Yellow Loosestrife 80Wild Sarsaparilla 131 Yellow Oak* 212Wild Senna (American Senna) 94 Yellow Oxalis 80Wild Sweet William 155 Yellow Rocket 87Wild White Indigo 43 Yellow Salsify 110Wild Yamroot 51/122 Yellow Star-grass 78Willow Amsonia 135 Yellow Sweet Clover 93Willowherb 141/164 Yellow Troutlily 84Winged Loosestrife 154 Yellow Wakerobin 86, 120Winged Lythrum 154 Yellow Widelip Orchid 91Wingstem 111 Yellow-bud Hickory* 221Winter Cress 87 Yellowish Gentian 42Winter Vetch 148 Yellowwood* 222Winterberry* 20 Zanthoxylum americanum 125Wintergreen 42 Zigzag Goldenrod 106Witch Hazel* 113 Zizia aurea 113Witch's Moneybags 187Wolfberry* 39Woman's Tobacco 63Wood Anemone 13Wood Betony 86Wood Lily 190

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