242

Name Page Name Page Abies balsamea 225 Amelanchier canadensis 11 Acer ginnala 214 Amelanchier spicata 12 Acer negundo 220 American (Wild) Senna 94 Acer nigrum 215 American Basswood* 213 Acer pensylvanicum 215 American Beech* 209 Acer platanoides 215 American Bellflower 145 Acer rubrum 216 American Bittersweet* 114 Acer saccharinum 216 American Black Currant* 119 Acer saccharum 216 American Black Elderberry* 72 Acer spicatum 217 American Bladdernut* 39 Achillea millefolium 60 American Brooklime 136 Aconitum napellus 139 American Chestnut* 207 Acorus americanus 125 American Cranberrybush* 75 Acorus calamus 125 American Dogbane 34 Actaea pachypoda 60 American Elm* 213 Actaea racemosa 61 American Feverfew 71 Actaea rubra 60 American Germander 33 Adam and Eve 161 American Ginseng 71 Adiantum pedatum 195 American Hazelnut* 127 Aesculus glabra 221 American Linden* 213 Aethusa cynapium 61 American Lopseed 32/167 Agastache foeniculum 139 American Mountain Ash* 224 Agastache nepetoides 84 American Plum* 211 Agastache scrophulariifolia 139 American Red Raspberry 24 Ageratina altissima 61 American Silverberry* 82 Agrimonia pubescens 86 American Speedwell 136 Agrimonia striata 87 American Spikenard 63 Agrimony - Roadside 87 American Vetch 174 Agrimony - Soft 86 American Water Hore-hound 55 Agueweed 142 American Wintergreen 38 Ajuga reptans 140 American Yew* 227 Alderleaf Buckthorn* 123 Amerorchis rotundifolia 33 Alisma triviale 11 Amorpha canescens 151/182 Allegheny Blackberry* 23 Amorpha nana 182 Alliaria petiolata 34 Amphicarpaea bracteata 43/147 Allium canadense 185 Amsonia tabernaemontana 135 Allium cernuum 61/185 Amur Maple* 214 Allium stellatum 62/186 Anaphalis margaritacea 62 Allium tricoccum 62 Andromeda polifolia var. latifolia 41 Alnus incana subsp. rugosa 205 acutiloba 12 Alternate-leaf Dogwood* 66 Anemone acutiloba 135 Alumroot 116 Anemone acutiloba 152 Ambrosia artemisiifolia 121 Anemone americana 12 Ambrosia trifida 121 Anemone canadensis 12 Amelanchier alnifolia 11 Anemone caroliniana 44/135 Amelanchier arborea 11 Anemone cylindrica 125 243

Name Page Name Page Anemone patens 13 Asplenium rhizophyllum 201 Anemone quinquefolia 13 Asplenium trichomanes 201 Anemone virginiana 125 Aster - Arrowleaf 50 Angelica atropurpurea 62 Aster - Bigleaf (Blue) 148 Anise Hyssop 139 Aster - Blue Wood 149 Aniseroot 71 Aster - Bottomland 49 Annual Daisy Fleabane 45 Aster - Calico 48 Antennaria neglecta 63 Aster - Flat-topped 45 Antennaria plantaginifolia 63 Aster - Heart-leaved (Blue) 149 Anthemis cotula 44 Aster - Heart-leaved (White) 48 Apios americana 182 Aster - Many-flowered 48 Aplectrum hyemale 161 Aster - New England 179 Apocynum androsaemifolium 34/169 Aster - 49 Apocynum cannabinum 34 Aster - Purplestem (Blue) 150 Aquilegia canadensis 191 Aster - Purplestem (White) 49 Aralia hispida 63 Aster - Red-stemmed (Blue) 150 Aralia nudicaulis 131 Aster - Red-stemmed (White) 49 Aralia racemosa 63 Aster - Short's 151 Arctium minus 171 Aster - Side-flowering 49 Arctostaphylos uva-ursi 41 Aster - Silky 150,179 Arethusa bulbosa 161 Aster - Sky Blue 150 Arisaema dracontium 116 Aster - Smooth Blue 149 Arisaema triphyllum 116 Aster - Western Silver 150 Arkansas Rose* 156 Aster - White Heath 48 Arnoglossum reniforme 64 Aster - White Panicle 48 Aromatic aster 149 Aster - White Wood 46 Aronia arbutifolia 13 Astragalus canadensis 126 Aronia melanocarpa 14 Athyrium filix-femina 195 Arrow-leaved Tearthumb 58 Atlantic Camas 14 Arrow-leaved Violet 137 Auricled Twayblade 117 Arrowhead Rattlebox 93 Balm of Gilead* 210 Arrowwood - Downy* 76 Balsam Fir* 225 Arrowwood - Southern* 74 Balsam Poplar* 210 Artemisia campestris ssp. caudata 126 Baneberry - Red 60 Artemisia ludoviciana 50 Baneberry - White 60 Aruncus dioicus 51 Baptisia alba var. macrophylla 43 Asarum canadense 169 Baptisia australis 147 Asclepias exaltata 64 Baptisia bracteata 44 Asclepias incarnata 186 Baptisia tinctoria 93 Asclepias syriaca 186 Barbarea vulgaris 87 Asclepias tuberosa 194 Barren Strawbery 83 Asclepias verticillata 64 Basket Ash* 222 Ash-leaved Maple* 220 Bastard Toadflax 37 Asparagus 170 Beaked Hazelnut* 127 Asparagus officinalis 170 Bearberry 41 Asplenium platyneuron 201 Beardless Bird's-foot Violet 137 244

Name Page Name Page Beardtongue - Foxglove 31 Black Ash* 222 Beardtongue - Pale 31 Black Bindweed 53/172 Beardtongue - Showy 166 Black Birch* 206 Bedstraw - Fragrant 19 Black Bugbane 61 Bedstraw - Northern 18 Black Cherry* 212 Bedstraw - Rough 18 Black Chokeberry* 14 Bedstraw - Shining 18 Black Locust* 224 Bedstraw - Threelobed 19 Black Medick 112 Beechnut* 209 Black Mustard 87 Beggar-ticks 94 Black Nightshade 39 Beggar's Lice 54 Black Oak* 220 Beggarticks - Devil's 95 Black Raspberry* 24 Beggarticks - Swamp 95 Black Spruce* 226 Belamcanda chinensis 189 Black Sugar Maple* 215 Bellflower - Marsh 35 Black Walnut* 223 Bellflowers - blue 144,145 Black Willow* 212 Bellwort - Large flowered 93 Black-eyed Susan 102 Berry Bladder Fern 195 Blackberry - Allegheny* 23 Berteroa incana 34 Blackberry - Dwarf Red* 25 Besseya bullii 111 Blackberry Lily 189 Bettleweed (Galax) 53 Bladder Campion (White Campion) 32 Betula alleghaniensis 205 Bland Sweet Cicely 70 Betula lenta 206 Blanket-flower 96 Betula nigra 206 Blazing Star - Dense 178 Betula papyrifera 206 Blazing Star - Dotted 177 Betula pumila 207 Blazing Star - Large-headed 177 Bidens cernua 94 Blazing Star - Northern 178 Bidens connata 95 Blazing Star - Ontario 177 Bidens frondosa 95 Blazing Star - Prairie 177 Biennial Gaura 19 Blazing Star - Rough 176 Biennial Lettuce 146 Blazing Star - Scaly 178 Bigleaf Aster 47/148 Blazing Star - Shaggy 177 Bigtooth Aspen* 210 Blephilia cilata 140/162 Bindweed - Black 53 Blephilia hirsuta 140/162 Bindweed - Field 29 Blisterwort 90 Bindweed - Fringed Black 52 Blood Milkwort 184 Bindweed - Hedge 29 Bloodroot 26 Bird's-foot Deer-vetch 91 Blue Beech* 207 Bird’s-foot Trefoil 91 Blue Cardinal Flower 143 Bird’s-foot Violet 137 Blue Cohosh 114 Bishop's Cap 38 Blue Flag Iris 138 Bitter Milkwort 58,184 Blue Giant Hyssop 139 Bittercress 36 Blue Squill 139 Bitternut Hickory* 221 Blue Vervain 151 Bittersweet Nightshade 146,159 Blue Violet - Common 138 Black Alder* 20 Blue Wild Indigo 147 245

Name Page Name Page Blue Wood Aster 149 Bugbane 61 Blue-bead Lily 91 Bugleweed - Northern 55 Blue-eyed grass 136 Bulb-bearing Water Hemlock 65 Blue-eyed Mary 147 Bulblet Bladder Fern 195 Bluejacket 146 Bulblet Water Hemlock 65 Blunt-leaved Orchid 119 Bull Thistle 176 Blunt-leaved Sandwort 21 Bull's Coral-drops 111 Blunt-lobe Cliff Fern 204 Bunchberry 16 Boechera laevigata 35/116 Bur Cucumber 26 Bog Birch* 207 Bur Oak* 219 Bog Rosemary 41 Bur-reed, Giant 133 Bog White Violet 28 Burdock - Lesser 171 Bog Wintergreen 168 Burnweed (Fireweed) 88 Bog-bean 21 Bush Honeysuckle* 85/164 Boltonia asteroides 45 Butter and Eggs 91 Boneset 68,69 Buttercups 81-90 Boneset - False 65 Butterfly Milkweed 194 Botrychium virginianum 201 Butterfly Weed 194 Bottle Gentian 141 Butternut* 223 Bottomland Aster 49 Button Blazing Star 176 Bouncing Bet - Pink 159 Button Eryngio 68/132 Bouncing Bet - White 26 Buttonbush* 65 Box Elder* 220 Calico Aster 49 Bracken Fern 200 California Nettle 131 Bracted Spiderwort 160 Calla palustris 76 Brassica nigra 87 Calopogon tuberosus var. tuberosus 162 Braun’s Holly Fern 204 Caltha palustris 77 Brickellia eupatorioides 65 Calypso bulbosa 162 Bride’s Feathers 51 Calystegia sepium 29 Bristly Bellflower 144 Camassia scilloides 14 Bristly Blackberry 25 Campanula aparinoides 35 Bristly Bluebells 144 Campanula cervicaria 144 Bristly Buttercup 90 Campanula glomerata 144 Bristly Greenbrier* 133 Campanula rapunculoides 145 Bristly Sarsaparilla 63 Campanula rotundifolia 145 Brittle Bladder Fern 196 Campanulastrum americanum 145 Broad Beech Fern 203 Canada Anemone 12 Broad-leaved Helleborine 165 Canada Elderberry* 72,73 Broad-lipped Twayblade 117 Canada Germander 33 Broadleaf Arrowhead 25 Canada Hawkweed 100 Broadleaf Burweed 133 Canada Lily 84 Broadleaf Enchanter’s Nightshade 37 Canada Moonseed 38 Brown Wide-lip Orchid 166 Canada Ticktrefoil 172 Brown-eyed Susan 103 Canada Violet 28 Buckbean 21 Canadian Clearweed 128 Buckthorn 122/123 Canadian Honewort 68 246

Name Page Name Page Canadian Horseweed 88 Cherry Birch* 206 Canadian Lousewort 86 Chickweed - Common 27 Canadian Mayflower 55 Chickweed - Long-leaved 27 Canadian Milk Vetch 126 Chickweed - Mouse-ear 14 Canadian Wild Ginger 169 Chicory - Blue Type 135 Canadian Wood Nettle 128 Chicory - White type 15 Canadian Yew* 227 Chimaphila umbellata 170 Candle Anemone 125 Chinkapin Oak* 212 Canoe Birch* 206 Chionanthus virginicus 208 Capsella bursa-pastoris 35 Chokecherry* 23 Cardamine concatenata 36 Christmas Fern 200 Cardamine diphylla 36 Cichorium intybus 15/135 Cardamine pensylvanica 36 Cicuta bulbifera 65 Cardinal Flower 191 Cicuta maculata 66 Carolina anemone 44/135 Cimicifuga racemosa 61 Carolina Larkspur 30 Cinnamon Fern 199 Carolina Rose* 157 Cinquefoil - Common 81 Carpet Bugle 140 Cinquefoil - Rough 80 Carpinus caroliniana 207 Cinquefoil - Rough fruited 81 Carrion Flowers 132 Cinquefoil - Shrubby 77 Carya cordiformis 221 Cinquefoil - Silvery 80 Carya ovata 221 Circaea alpina 36 Castanea dentata 207 Circaea lutetiana ssp. canadensis 37 Castilleja coccinea 192 Cirsium arvense 175 Catbrier 133 Cirsium discolor 175 Catmint 57 Cirsium muticum 176 Catnip 57 Cirsium vulgare 176 Cattail - Common 194 Cladrastis kentukea 222 Cattail - Narrow-leaved 194 Clammy Cockle 32 Cattail Giant Hyssop 84 Clammy Ground Cherry 91 Caulophyllum thalictroides 114 Claytonia virginica 15/152 Ceanothus americanus 65 Cleavers 18 Celandine Poppy 83 Clematis virginiana 15 Celastrus scandens 114 Climbing Bittersweet* 114 Celery-leaf Buttercup 90 Climbing Buckwheat 53,172 Celtis occidentalis 208 Climbing Nightshade 146/159 Centaurea stoebe 175 Climbing Rose* 158 Cephalanthus occidentalis 65 Clinton Fern 202 Cerastium fontanum ssp. vulgare 14 Clintonia borealis 91 Cercis canadensis 208 Closed Gentian 141 Chamaecrista fasciculata 77 Clover - Purple Prairie 183 Chamaedaphne calyculata 41 Clover - Red 187 Chamerion angustifolium 152 Clover - Roundheaded Bushclover 54 Chelone glabra 41 Clover - Silky Prairie 151 Chelone obliqua 162 Clover - Sweet White 56 Chenopodium capitatum 192 Clover - Sweet Yellow 93 247

Name Page Name Page Clover - White 74 Conyza canadensis 88 Clover - White Prairie 51 Coptis trifolia 15 Clustered Bellflower 144 Coralberry* 40/171 Coeloglossum viride 117 Corallorhiza maculata 163 Columbine 191 Corallorhiza striata 188 Collinsia verna 147 Corallorhiza trifida 88 Comandra umbellata 37 Coreopsis lanceolata 95 Comarum palustre 152 Coreopsis palmata 95 Comfrey 169 Cork Elm* 214 Common Blue Violet 138 Cornus alternifolia 66 Common Blue Wood Aster 149 Cornus canadensis 16 Common Buckthorn* 123 Cornus obliqua 66 Common Bugle 140 Cornus racemosa 67 Common Carrion Flower 132 Cornus rugosa 67 Common Cattail 194 Cornus sericea 67 Common Chickweed 27 Coronilla varia 172 Common Cinquefoil 81 Corydalis sempervirens 163 Common Dandelion 110 Corydalis solida 163 Common Dodder 121/192 Corylus americana 127 Common Duckweed 134 Corylus cornuta 127 Common Evening Primrose 85 Cottonwood* 210 Common Fleabane 46 Cow Parsnip 69 Common Goldstar 78 Cowslip 77 Common Greenbrier 133 Cranberry - European* 76 Common Hops 133,134 Cranberry - Highbush* 75 Common Milkweed 186 Crataegus chrysocarpa 209 Common Moonseed 38 Cream Pea 44 Common Mullein 111 Creeping Bugle 140 Common Periwinkle 136 Creeping Charlie 142 Common Plantain 129 Creeping Jenny 79 Common Polypody 203 Creeping Snowberry 38 Common Ragweed 121 Creeping Spearwort 82 Common Thorn Apple 29 Crepis tectorum 96 Common Yellow Oxalis 80 Crested Shield Fern 197 Compass 104 Crested Wood Fern (Shield Fern) 197 Comptonia peregrina 126/192 Crinkleroot 36 Coneflower - Gray-headed 102 Cross-leaf Milkwort 184 Coneflower - Green Headed 103 Crotalaria sagittalis 93 Coneflower - Long-headed 102 Crown Vetch 172 Coneflower - Narrow-leaf 180 Cryptotaenia canadensis 68 Coneflower - Pale Purple 180 Culver's Root 59 Coneflower - Purple 180 Cup Plant 105 Coneflower- Thin-leaved 103 Curly Dock 134 Confederate Violet 138 Curlycup Gumweed 97 Convallaria majalis 37 Currant - American Black* 119 Convolvulus arvensis 29 Currant - Garden Red* 120 248

Name Page Name Page Cursed Crowfoot 90 Dogwood - Pagoda* 66 Cuscuta gronovii 121/192 Dogwood - Pale* 66 Cylindrical Blazing Star 177 Dogwood - Redosier* 67 Cypripedium acaule 163 Dogwood - Round-leaved* 67 Cypripedium arietinum 163 Dortman’s Cardinalflower 30 Cypripedium candidum 42 Dotted Bee-balm 181 Cypripedium parviflorum v makasin 83 Dotted Blazing Star 177 Cypripedium parviflorum v pubescens 83 Dotted Gayfeather 177 Cypripedium reginae 164 Dotted Horsemint 181 Cystopteris bulbifera 195 Dotted Smartweed 58 Cystopteris fragilis 196 Downy Agrimony 86 Dalea candida 51 Downy Arrowwood* 76 Dalea purpurea 183 Downy Gentian 141 Dalea villosa var. villosa 151 Downy Juneberry* 11 Dame's Rocket - pink 153 Downy Phlox 155 Dame’s Rocket - white 20 Downy Prairie Clover 151 Dasiphora fruticosa 77 Downy Rattlesnake Plantain 53 Datura stramonium 29 Downy Wood Mint 140/162 Daucus carota 68 Downy Yellow Violet 83 Delphinium carolinianum ssp virescens 30 Dragon-root 116 Delphinium exaltatum - blue 141 Dragon’s-mouth 161 Delphinium exaltatum - white 30 Drosera anglica 51 Dennstaedtia punctilobula 202 Drosera intermedia 52 Dense Blazing Star 178 Drosera rotundifolia 52 Deparia acrostichoides 196 Drumheads 184 Desmodium canadense 172 Drymocallis arguta 16 Desmodium glutinosum 172 Dryopteris carthusiana 196 Devil’s Beggartick 95 Dryopteris clintoniana 202 Dewberry* 24 Dryopteris cristata 197 Dicentra canadensis 42 Dryopteris expansa 202 Dicentra cucullaria 42 Dryopteris filix-mas 197 Diervilla lonicera - pink 164 Dryopteris goldiana 197 Diervilla lonicera - yellow 85 Dryopteris marginalis 198 Digitalis lanata 164 Dutchman’s Breeches 42 Dioscorea villosa 51/122 Dwarf Birch* 207 Diplazium pycnocarpon 202 Dwarf Blazing Star 177 Dirca palustris 88 Dwarf Crested Iris 138 Ditch Crowfoot 90 Dwarf Elm* 213 Ditch Stonecrop 123 Dwarf False Indigo 182 Dodder 121 Dwarf Red Blackberry* 25 Dodecatheon meadia 16/153 Dwarf Red Raspberry* 25 Doellingeria umbellata var. pubens 45 Early Coralroot 88 Dog Fennel 44 Early Goldenrod 107 Dogbane 34 Early Meadow-rue 124 Dogtooth Violet 84 Eastern Arborvitae* 229 Dogwood - Gray* 67 Eastern Bluestar 135 249

Name Page Name Page Eastern Daisy Fleabane 45 European Cranberry* 76 Eastern Hemlock* 227 European Mountain Ash* 224 Eastern Leatherwood* 88 Eurybia divaricata 46 Eastern Prickly Gooseberry* 120 Eurybia macrophylla - blue 148 Eastern Purple Coneflower 180 Eurybia macrophylla - white 47 Eastern Redbud* 208 Euthamia graminifolia 96 Eastern Redcedar* 229 Eutrochium maculatum 186 Eastern Swamp Saxifrage 128 Eutrochium purpureum 187 Eastern Teaberry 42 Evening Primrose 85 Eastern Wahoo* 153 Everlasting Pea 173 Eastern Waterleaf 142 Eyebright 38 Eastern White Pine* 228 Fagus grandifolia 209 Ebony Spleenwort 201 Fairy Slipper Orchid 162 Echinacea angustifolia 180 Fallopia cilinodis 52 Echinacea pallida 180 Fallopia convolvulus 53/172 Echinacea purpurea 180 Fallopia japonica 53 Echinocystis lobata 52 False Acacia* 224 Edible Valerian 59 False Aster 45 Elderberries 72,73,184 False Blue Indigo 147 Elecampane 100 False Boneset 65 Elm-leaved Goldenrod 109 False Dragonhead 32,167 Enchanter’s Nightshade 37 False Lily of the Valley 55 Enemion biternatum 16 False Rue Anemone 16 English Sundew 51 False Solomon’s Seal 55 16 False White Indigo 43 Epilobium coloratum 141/164 Fanweed 40 Epipactis helleborine 165 Fen Grass of Parnassus 22 Equisetum arvense 127/193 Feverfew 50 Equisetum fluviatile 128/194 Few-leaved Sunflower 98 Erechtites hieraciifolius 88 Field Bindweed 29 Erect Carrion Flower (Upright) 132 Field Horsetail 127/193 Erigeron annuus 45 Field Pennycress 40 Erigeron philadelphicus 46 Field Pussytoes 63 Erigeron strigosus 46 Field Sage-wort 126 Eryngium yuccifolium 68/132 Field Sow Thistle 109 Erysimum asperum 89 Filipendula rubra 187 Erythronium albidum 17 Filipendula ulmaria 69 Erythronium americanum 84 Fire Pink 189 Erythronium propullans 165 Fireweed 152 Euonymus atropurpureus 153 Fireweed (Burnweed) 88 Euonymus obovatus 114 Flame Azalea* 191 Eupatorium perfoliatum 68 Flat-topped Aster 45 Euphorbia corollata 17 Flat-topped Goldenrod 96 Euphorbia cyathophora 165 Fleabane - Annual Daisy 45 Euphorbia virgata (old esula) 115 Fleabane - Lesser Daisy 46 European Bellflower 145 Fleabane - Philadelphia 46 250

Name Page Name Page Flowering Raspberry 25 Gaura biennis 19 Flowering Spurge 17 Gayfeathers - see Blazing Stars 176 Foamflower 40 Gaywings 168 Foamy Bells 183 Gentian - Closed (Blue Bottle) 141 Fool’s Parsley 61 Gentian - Downy 141 Forget-me-not 136 Gentian - Fringed 142 Four-flower Loosestrife 79 Gentian - Lesser Fringed 142 Foxglove Beardtongue 31 Gentian - Plain (Yellowish) 42 Fragaria vesca 17 Gentiana alba 42 Fragaria virginiana 17 Gentiana andrewsii 141 Fragile Bladder Fern 196 Gentiana clausa 141 Fragrant Bedstraw 19 Gentiana flavida 42 Fragrant False Indigo 182 Gentiana puberulenta 141 Fragrant Sumac 129 Gentianella quinquefolia 142 Frangula alnus 122 Gentianopsis crinita 142 Fraxinus americana 222 Gentianopsis virgata var. virgata 142 Fraxinus nigra 222 Geranium maculatum 153 Fraxinus pennsylvanica 223 Geum aleppicum 78 Fringe Tree* 208 Geum canadense 19 Fringed Black Bindweed 52 Geum macrophyllum 78 Fringed Gentian 142 Geum rivale 170 Fringed Loosestrife 79 Geum triflorum 192 Fringed Polygala 168 Giant Goldenrod 106 Fringeleaf Wild Petunia 144 Giant Ragweed 121 Frost Grape* 131 Giant Sunflower 97 Fumewort 163 Ginseng - American 71 Gaillardia aristata 96 Glade Fern 202 Galax 53 Glade Mallow 70 Galax urceolata 53 Glechoma hederacea 142 Galearis spectabilis 37/165 Glossy Buckthorn* 122 Galinsoga quadriradiata 47 Glossy Leaf Aster 49 Galium aparine 18 Goat’s Rue 94 Galium asprellum 18 Golden Alexanders 113 Galium boreale 18 Golden Ragwort 101 Galium concinnum 18 Golden Zizia 113 Galium trifidum 19 Goldenrod - Early 107 Galium triflorum 19 Goldenrod - Elm-leaved 109 Garden Currant* 120 Goldenrod - Giant 107 Garden Monkshood 139 Goldenrod - Grass-leaved 96 Garden Phlox - pink 155 Goldenrod - Gray 107 Garden Phlox - white 71 Goldenrod - Late 106 Garden Valerian 74 Goldenrod - Missouri 107 Garlic Mustard 34 Goldenrod - Northern Bog 108 Gaultheria hispidula 38 Goldenrod - Old Field 107 Gaultheria procumbens 42 Goldenrod - Riddell's 108 Gaura (Biennial) 19 Goldenrod - Showy 108 251

Name Page Name Page Goldenrod - Stiff 108 Hamamelis virginiana 113 Goldenrod - Tall 106 Hard Maple* 216 Goldenrod - Wreath 106 Harebell 145 Goldenrod - Zigzag 106 Hawkweed - Rough (Canada) 100 Goldenseal 134 Hawthorn* 209 Goldie’s Wood Fern 197 Hay-scented Fern 202 Goodyera pubescens 53 Hazelnut* 127 Goodyera repens 53 Heal-all 184 Gooseberry - Eastern Prickly* 120 Heart-leaved Aster - blue 149 Gooseberry - Missouri* 92,120 Heart-leaved Aster - white 48 Grape Woodbine (Woodbine) 115 Heart-leaved Four O'clock 154 Grass-leaved Goldenrod 96 Heartleaf Foamflower 40 Gray Dogwood 67 Heartleaf Four O'clock 154 Gray Goldenrod 107 Heartleaf Twayblade 117 Gray-headed Coneflower 102 Hearts-ease 183 Great Angelica 62 Hedge Bindweed 29 Great Blue Lobelia 143 Hedyotis longifolia 38 Great Indian Plantain 64 Helenium autumnale 97 Great Plains Fringed Gentian 142 Helianthus giganteus 97 Great Ragweed 121 Helianthus hirsutus 98 Great Solomon’s Seal 119 Helianthus occidentalis 98 Grecian Foxglove 164 Helianthus pauciflorus 98 Greek Valerian 143 Helianthus strumosus 99 Green Adder's Mouth 117 Helianthus tuberosus 99 Green Ash* 223 Heliopsis helianthoides var. scraba 99 Green Dragon 116 Helleborine 165 Green Fringed Orchid 119 Helmet Flower 139 Green-briers 133 Hemerocallis fulva 189 Green-headed Coneflower 103 Hemerocallis lilioasphodelus 84 Grindelia squarrosa 97 Hemlock Spruce* 227 Grooved Agrimony 87 Henbit Deadnettle 165 Ground Cherries 91-92 Hepatica - Round-lobed 12 Ground Ivy 142 Hepatica - Sharp-lobed 12 Groundnut 182 Hepatica - Sharp-lobed - blue 135 Gymnocarpium dryopteris 202 Hepatica - Sharp-lobed - pink 152 Gymnocladus dioicus 225 Heracleum maximum 69 Hackberry* 208 Hesperis matronalis - pink 153 Hackelia virginiana 54 Hesperis matronalis - white 20 Hairy False Golden-aster 100 Heterotheca villosa 100 Hairy Golden-aster 100 Heuchera americana v. hirsuticaulius 116 Hairy Ruellia 144 Heuchera richardsonii 117 Hairy Sunflower 98 Hibiscus laevis 30 Hairy Sweet Cicely 70 Hieracium aurantiacum 193 Hairy Vetch 148 Hieracium umbellatum 100 Hairy Wood Mint 140/162 Highbush Cranberry* 75 Halberdleaf Rosemallow 30 Hill's Oak* 218 252

Name Page Name Page Hispid Buttercup 82 Jack-go-to-bed-at-noon 110 Hoary Alyssum 34 Jack-in-the-pulpit 116 Hoary Puccoon 85 Jacob's-ladder 143 Hoary Vervain 185 Japanese Hedge Parsley 73 Hoary Wood Mint 140/162 Japanese Knotweed 53 Hog Peanut 43/147 Jeffersonia diphylla 20 Honewort 68 Jerusalem Artichoke 99 Hooded Coralroot 188 Jewelweed - Pale 85 Hooded Lady's-tresses 59 Jewelweed - Spotted 85 Hooked Crowfoot 90 Jimsonweed 29 Hooker’s Orchid 118 Joe-Pye Weed - Spotted 186 Hop Tree* 220 Joe-Pye Weed - Sweet 187 Hophornbeam* 209 Juglans cinerea 223 Horse Gentian 191 Juglans nigra 223 Horseflyweed 93 Juneberries* 11 Horseheal 100 Juniperus virginiana 229 Horsemint - Dotted 181 Kalmia latifolia 69 Houstonia longifolia 38,78 Kentucky Coffeetree* 225 Humulus lupulus 133 Kidney-leaved Violet 29 Huron Green Orchid 118 Kidneyleaf Buttercup 89 Hydrastis canadensis 134 Kinnickinick 41 Hydrophyllum virginianum 142 Kitten Tails 111 Hylotelephium telephium 187 Labrador Tea* 72 Hypericum perforatum 78 Lactuca biennis 146 Hypericum pyramidatum 78 Lactuca canadensis 101 Hypoxis hirsuta 78 Lactuca serriola 101 Hyssop - Blue Giant 139 Lady Fern 195 Hyssop - Purple Giant 139 Lady Slippers 42,83,163 Hyssop - Yellow 84 Lady's-tresses 59 Ilex verticillata 20 Lamium amplexicaule 165 Illinois Rose* 158 Lance-leaf Tickseed 95 Impatiens capensis 85 Lance-leaved Violet 28 Impatiens pallida 85 Lanceleaf Figwort 168 Indian Hemp 34 Laportea canadensis 128 Indian Paintbrush - Scarlet 192 Larch* 227 Indian Pipe 43/192 Large Twayblade 166 Indigos 43,93,147 Large-flowered Beardtongue 166 Interrupted Fern 199 Large-flowered Bellwort 93 Inula helenium 100 Large-headed Blazing Star 177 Iris cristata 138 Large-leaf Avens 78 Iris pseudacorus 84 Large-leaved Aster 148 138 Large-toothed Aspen* 210 Ironweed 188 Larix laricina 227 Ironwood* 209 Larkspur Violet 137 Ivy - Ground Ivy 142 Late Goldenrod 106 Jack Pine* 228 Late Horse Gentian 191 253

Name Page Name Page Lathyrus latifolius 173 Liparis loeselii 91 Lathyrus ochroleucus 44 Listera auriculata 117 Lathyrus palustris 173 Listera convallarioides 117 Lathyrus venosus 173 Listera cordata 117 Lawn Prunella 184 Lithospermum canescens 85 Leadplant 151/182 Lithospermum incisum 85 Leafy Green Orchis 117 Littleleaf Buttercup 89 Leafy Spurge 115 Live Forever 187 Leatherleaf 41 Liver-leaf Wintergreen 168 Lemna minor 134 Lobelia - Cardinal Flower 191 Leonurus cardiaca 54/181 Lobelia - Dortman's 30 Lepidium densiflorum 122 Lobelia - Great Blue 143 Lespedeza capitata 54 Lobelia - Pale Spike 31 Lesser Burdock 171 Lobelia - Water 30 Lesser Duckweed 134 Lobelia cardinalis 191 Lesser Fringed Gentian 142 Lobelia dortmanna 30 Lesser Rattlesnake Plantain 53 Lobelia siphilitica 143 Leucanthemum vulgare 47 Lobelia spicata 31 Liatris aspera 176 Loesel's Twayblade 91 Liatris cylindracea 177 Long Beech Fern 203 Liatris ligulistylis 177 Long-headed Coneflower 102 Liatris pilosa 177 Long-leaved Bluet 38 Liatris punctata 177 Long-leaved Chickweed 27 Liatris pycnostachya 177 Long-styled Sweet Cicely 71 Liatris scariosa var. novae-angliae 178 Longbract Frog Orchid 117 Liatris spicata 178 Longbract Wild Indigo 44 Liatris squarrosa 178 Longleaf Ground Cherry 92 Lilac Penstemon 166 Lonicera dioica 166 Lilium canadense 84 Lonicera tatarica 31 Lilium michiganense 190 Loosescale Gayfeather 178 190 Loosestrife - Four-flower 79 Lilium superbum 190 Loosestrife - Fringed 79 Lily - Blackberry 189 Loosestrife - Purple 154 Lily - Canada 84 Loosestrife - Tufted 111 Lily - Michigan 190 Loosestrife - Whorled 79 Lily - Orange Day Lily 189 Loosestrife - Yellow 80 Lily - Turk's-cap 190 Lopseed 32/167 Lily - Wood 190 Lotus corniculatus 91 Lily - Yellow Day Lily 84 Lupinus perennis 147 Lily of the Valley 37 Lycopus americanus 55 Limber Honeysuckle* 166 Lycopus uniflorus 55 Linaria vulgaris 91 Lysimachia borealis 20 Lingonberry* 43 Lysimachia ciliata 79 Linnaea borealis ssp. americana 30/166 Lysimachia nummularia 79 Lion's Foot 168 Lysimachia quadriflora 79 Liparis liliifolia 166 Lysimachia quadrifolia 79 254

Name Page Name Page Lysimachia terrestris 80 Milkweed - Poke 64 Lysimachia thyrsiflora 111 Milkweed - Swamp 186 Lythrum alatum 154 Milkweed - Whorled 64 Lythrum salicaria 154 Mimulus ringens var. ringens 143/166 Macloskey’s Violet 28 Minnesota Dwarf Troutlily 165 Mad-dog Skullcap 144 Mirabilis nyctaginea 154 Maianthemum canadense 55 Missouri Goldenrod 107 Maianthemum racemosum 55 Missouri Gooseberry* 92/120 Maianthemum stellatum 56 Mitchella repens 21 Maidenhair Spleenwort 201 Mitella diphylla 38 Malaxis unifolia 117 Miterwort 38 Male Fern 197 Moccasin Flower 163 Maltese Cross 189 Mock Orange* 22 Many Flowered Aster 48 Moehringia lateriflora 21 Marginal Wood Fern 198 Monarda fistulosa 178 Marsh Bellflower 35 Monarda media 179 Marsh Blue Violet 137 Monarda punctata 181 Marsh Cinquefoil 152 Moneses uniflora 21 Marsh Fern 200 Moneywort 79 Marsh Hedgenettle 182 Monkey Flower 143/166 Marsh Marigold 77 Monotropa uniflora 43/192 Marsh Pea 173 Moonseed 38 Marsh Skullcap 144 Moosewood* 215 Marsh St. Johnswort 169 Motherwort 54/181 Marsh Vetchling 173 Mountain Cranberry* 43 Matteuccia struthiopteris 198 Mountain Laurel* 69 Mayapple 22 Mountain Maple* 217 Meadow Evening Primrose 86 Mountain Mint 72 Meadow Goatsbeard 110 Mountain Woodsorrel 22/155 Meadow-fern (Sweet Gale) 128 Mouse-ear Chickweed 14 Meadowsweet* 73 Mullein 111 Medicago lupulina 112 Muscle-wood* 207 Melilotus alba 56 Myosotis scorpioides 136 Melilotus officinalis 93 Myrica gale 128 Menispermum canadense 38 Myrrhis odorata 70 Mentha aquatica-spicata 56 Nannyberry* 75 Mentha arvensis 57/181 Napaea dioica 70 Mentha x piperita 56 Narrow Beech Fern 203 Menyanthes trifoliata 21 Narrow-leaf Blue-eyed Grass 136 Merrybells 93 Narrow-leaf Coneflower 180 Mertensia virginica 143 Narrow-leaved Cattail 194 Michigan Lily 190 Narrow-leaved Puccoon 85 Micranthes pensylvanica 128 Narrow-leaved Spleenwort 202 Milkvetch - Canada 126 Narrow-leaved Sundew 52 Milkweed - Butterfly weed 194 Narrowleaf Hawksbeard 96 Milkweed - Common 186 Narrowleaf Evening Primrose 86 255

Name Page Name Page Narrowleaf Meadowsweet* 73 Old-field Goldenrod 107 Narrowleaf Stoneseed 85 Old-man's Beard* 208 Nepeta cataria 57 Oligoneuron rigidum 108 Nettle - Stinging 131 One-flowered Pyrola 21 Nettle - Wood 128 Onoclea sensibilis 198 New England Aster 179 Ontario Aster 49 New England Blazing Star 178 Orange Coneflower 102 New Jersey Tea* 65 Orange Day Lily 189 New York Fern 204 Orange Hawkweed 193 Night-flowering Catchfly 32 Osmorhiza claytonii 70 Nightshade - Black 39 Osmorhiza longistylis 71 Nightshade - Climbing 159 Osmunda claytoniana 199 Nightshade - Enchanters 37 Osmunda regalis 199 Nightshade - Small Enchanters 37 Osmundastrum cinnamomeum 199 Ninebark* 72 Ostrich Fern 198 Nodding Bur Marigold 94 Ostrya virginiana 209 Nodding Lady’s tresses 59 Oxalis dillenii 80 Nodding Smartweeed 57 Oxalis montana 22/155 Nodding Wakerobin 27 Oxalis stricta 80 Nodding Wild Onion 61/185 Oxalis violacea 155 Northern Bedstraw 18 Oxeye Daisy 47 Northern Blazing Star 178 Packera aurea 101 Northern Bog Goldenrod 108 Packera plattensis 101 Northern Bog Orchid 118 Pagoda Dogwood* 66 Northern Bush Honeysuckle* - pink 164 Pale Beardtongue 31 Northern Bush Honeysuckle*- yellow 85 Pale Corydalis 163 Northern Dewberry* 24 Pale Dogwood* 66 Northern Green Orchid 117,118 Pale Green Orchid 118 Northern Maidenhair Fern 195 Pale Purple Coneflower 180 Northern Pin Oak* 218 Pale Smartweed 57 Northern Red Oak* 219 Pale Yellow Iris 84 Northern Water Plantain 11 Pale-spike Lobelia 31 Northern White Cedar* 229 Paleleaf Sunflower 99 Northern Wood Fern 202 Paleleaf Woodland Sunflower 99 Norway Maple* 215 Panax quinquefolius 71 Norway Pine* 228 Paper Birch* 206 Norway Spruce* 226 Parnassia glauca 22 Norwegian Cinquefoil 80 Parthenium integrifolium 71 Obedient Plant - pink 167 Parthenocissus quinquefolia 115 Obedient Plant - white 32 Parthenocissus vitacea 115 Oenothera biennis 85 Partridge Berry 21 Oenothera fruticosa 86 Partridge Pea 77 Oenothera pilosella 86 Pasque Flower 13 Ohio Buckeye* 221 Pastinaca sativa 112 Ohio Spiderwort 146 Pasture Rose* 157 Old Man's Whiskers 192 Pearly Everlasting 62 256

Name Page Name Page Pedicularis canadensis 86 Pilea pumila 128 Pediomelum argophyllum 148 Pin Cherry* 211 Pellaea atropurpurea 203 Pin Oak* 219 Pennsylvania Bitter-cress 36 Pinus banksiana 228 Pennsylvania Buttercup 90 Pinus resinosa 228 Penstemon digitalis 31 Pinus strobus 228 Penstemon gracilis 166 Pinus sylvestris 229 Penstemon grandiflorus 166 Pipsissewa 170 Penstemon pallidus 31 Plain Gentian 42 Penthorum sediodes 123 Plains Cottonwood* 210 Pepper Grass 122 Plains Wild Indigo 44 Peppermint 56 Plantago major 129 Perennial Pea 173 Plantain - Common 129 Perennial Sow Thistle 109 Plantain - Great Indian 64 Periwinkle 136 Plantain-leaf Pussytoes 63 Persicaria amphibia 183 Platanthera aquilonis 117 Persicaria lapathifolia 57 Platanthera clavellata 118 Persicaria maculosa 183 Platanthera flava 118 Persicaria punctata 58 Platanthera hookeri 118 Persicaria sagittata 58 Platanthera huronensis 118 Peruvian Daisy 47 Platanthera lacera 119 Phegopteris connectilis 203 Platanthera obtusata 119 Phegopteris hexagonoptera 203 Platanthera orbiculata 119 Philadelphus sp. 22 Platanthera psycodes 167 Phlox - Downy 501 Pleurisy Root 194 Phlox - Garden (pink) 155 Podophyllum peltatum 22 Phlox - Garden (white) 71 Pogonia ophioglossoides 167 Phlox - Summer (pink) 155 Pointed-leaved Ticktrefoil 172 Phlox - Wild Blue 136 Poison Ivy 130 Phlox - Wild Sweet William 155 Poke Milkweed 64 Phlox divaricata 136 Polemonium reptans 143 Phlox maculata 155 Polygala cruciata 184 Phlox paniculata - pink 155 Polygala paucifolia 168 Phlox paniculata - white 71 Polygala polygama - pink 184 Phlox pilosa 155 Polygala polygama - white 58 Photinia melanocarpa 14 Polygala sanguinea 184 Phryma leptostachya 32/167 Polygala senega 58 Physalis heterophylla 91 Polygala verticillata 58 Physalis longifolia var. longifolia 92 Polygonatum biflorum 119 Physalis virginiana 92 Polygonum cilinode 52 Physocarpus opulifolius 72 Polygonum punctatum 58 Physostegia virginiana - pink 167 Polypodium virginianum 203 Physostegia virginiana - white 32 Polystichum acrostichoides 200 Picea abies 226 Polystichum braunii 204 Picea glauca 226 Populus alba 217 Picea mariana 226 Populus balsamifera ssp. balsamifera 210 257

Name Page Name Page Populus deltoides subsp. monilifera 210 Purple Cliff Brake 203 Populus grandidentata 210 Purple Coneflower 180 Populus tremuloides 211 Purple Flowering Raspberry* 159 Potentilla argentea 80 Purple Fringed Orchid - Lesser 167 Potentilla arguta (Drymocallis) 16 Purple Giant Hyssop 139 Potentilla norvegica 80 Purple Loosestrife 154 Potentilla recta 81 Purple Marshlocks 152 Potentilla simplex 81 Purple Meadow Rue 124 Prairie Birdsfoot Violet 137 Purple Milkwort 184 Prairie Blazing Star 177 Purple Pitcher Plant 170 Prairie Buttercup 82 Purple Prairie Clover 183 Prairie Cinquefoil 16 Purple Rattlesnake Root 168 Prairie Coneflower 102 Purple-stem Beggartick 95 Prairie Dock 105 Purplestem Angelica 62 Prairie Fleabane 46 Purplestem Aster - blue 150 Prairie Ironweed 188 Purplestem Aster - white 49 Prairie Larkspur 30 Purplestem Aster 150 Prairie Loosestrife 79 Pussy Willow* - catkins 58 Prairie Ninebark * 72 Pussy Willow* - female catkin 130 Prairie Ragwort 101 Pussy Willow* - male catkin 112 Prairie Rocket 89 Pussytoes 63 Prairie Rosinweed 105 Putty Root 161 Prairie Sage 50 Pycnanthemum virginianum 72 Prairie Smoke 192 Pyrola americana 38 Prairie Sundrops 86 Pyrola asarifolia 168 Prairie Wild Rose* 156 Quaking Aspen* 211 Prenanthes alba 168 Queen Anne’s Lace 68 Prenanthes racemosa 168 Queen of the Meadow 69 Prickly Gooseberry* 120 Queen of the Prairie 187 Prickly Lettuce 101 Quercus alba 217 Prickly Rose* 156 Quercus bicolor 218 Prickly Sow Thistle 109 Quercus coccinea 218 Prickly-ash* 125 Quercus ellipsoidalis 218 Pride of Ohio 16,153 Quercus macrocarpa 219 Prince’s-pine 170 Quercus muehlenbergii 212 Prunella vulgaris 184 Quercus palustris 219 Prunus americana 211 Quercus rubra 219 Prunus pensylvanica 211 Quercus velutina 220 Prunus pumila 22 Racemed Milkwort 184 Prunus serotina 212 Racemed Milkwort - pink 184 Prunus virginiana 23 Racemed Milkwort - white 58 Ptelea trifoliata 220 Ragweed - Common 121 Pteridium aquilinum var. latiusculum 200 Ragweed - Giant 121 nuttalliana 13 Ragwort - Golden 101 Purple Avens 170 Ragwort - Prairie 101 Purple Bergamot 179 Rampion Bellflower 145 258

Name Page Name Page Ram's head Lady’s Slipper 163 River Birch* 206 Ranunculus abortivus 89 Riverbank Grape* 131 Ranunculus acris 81 Robinia pseudoacacia 224 Ranunculus flammula 82 Rock Elm* 214 Ranunculus hispidusvar . nitidus 82 Rock Harlequin 163 Ranunculus pensylvanicus 90 Rock Maple* 216 Ranunculus recurvatus 90 Rocky Mountain Blazing Star 177 Ranunculus rhomboideus 82 Rosa acicularlis 156 Ranunculus scelaratus 90 Rosa arkansana 156 Raspberry - Black 24 Rosa blanda 157 Raspberry - Dwarf Red 25 Rosa carolina 157 Raspberry - Flowering 25 Rosa palustris 158 Raspberry - Purple Flowering 159 Rosa setigera 158 Raspberry - Swamp 25 Rosa woodsii 158 Raspberry - Wild Red 24 Rose Pogonia 167 Ratibida columnifera 102 Roses - Wild* 157ff Ratibida pinnata 102 Rosinweed 104 Rattlesnake Fern 201 Rough Bedstraw 18 Rattlesnake Grape Fern 201 Rough Cinquefoil 80 Rattlesnake Master 68,132 Rough Gayfeather 176 Rattlesnake Plantains 53 Rough Hawkweed 100 Red Ash* 223 Rough-fruited Cinquefoil 81 Red Birch* 206 Rough-leaved Sunflower 99 Red Chokeberry* 13 Round-headed Bush clover 54 Red Clover 187 Round-headed Lespedeza 54 Red Columbine 191 Round-leaved Dogwood 67 Red Elderberry* 73,184 Round-leaved Orchid - Lesser 119 Red Elm* 214 Round-leaved Pyrola 38 Red Maple* 216 Roundleaf Greenbrier 133 Red Pine* 228 Roundleaf Orchid 33 Red Turtlehead 162 Roundleaf Sundew 52 Red-stemmed Aster 150 Royal Catchfly 189 Redosier Dogwood* 67 Royal Fern 199 Rhamnus alnifolia 123 Rubus allegheniensis 23 Rhamnus cathartica 123 Rubus flagellaris 24 Rhododendron calendulaceum 191 Rubus idaeus 24 Rhododendron groenlandicum 72 Rubus occidentalis 24 Rhus aromatica 129 Rubus odoratus 159 Rhus glabra 129 Rubus parviflorus 25 Rhus typhina (old hirta ) 130 Rubus pubescens 25 Ribes americanum 119 Rubus semisetosus 25 Ribes cynosbati 120 Rubus setosus 25 Ribes missouriense 92/120 Rudbeckia fulgida 102 Ribes rubrum 120 Rudbeckia hirta 102 Richardson’s Alumroot 117 Rudbeckia laciniata 103 Riddell’s Goldenrod 107 Rudbeckia subtomentosa 103 259

Name Page Name Page Rudbeckia triloba 103 Short’s Aster 151 Rue Anemone 160 Showy Beardtongue 166 Ruellia humilis 144 Showy Coneflower 102 Rumex crispus 134 Showy Goldenrod 108 Running Myrtle 136 Showy Lady's Slipper 164 Running Strawberry Bush 114 Showy Mountain Ash* 225 Rusty Cliff Fern 204 Showy Orchis 37/165 Rusty Woodsia 204 Shrubby Cinquefoil* 77 Sagittaria latifolia 25 Shrubby Five-fingers* 26 Salix discolor 58 Sibbaldiopsis tridentata 26 Salix discolor - female catkin 130 Siberian Elm* 213 Salix discolor - male catkin 112 Sicyos angulatus 26 Salix nigra 212 Side-flowering Aster 49 Sambucus nigra ssp. canadensis 72,73 Silene chalcedonica 189 Sambucus racemosa 73,184 Silene latifolia 32 Sanguinaria canadensis 26 Silene noctiflora 32 Saponaria officinalis - pink 159 Silene regia 189 Saponaria officinalis - whit e 26 Silene stellata 33 170 Silene virginica 189 Sarsaparilla 131 Silky Aster 150/179 Savin* 229 Silky Dogwood 66 Scarlet Catchfly 189 Silky Prairie Clover 151 Scarlet Lychnis 189 Silphium integrifolium 104 Scarlet Oak* 218 Silphium laciniatum 104 Scilla siberica 139 Silphium perfoliatum 105 Scotch Pine* 229 Silphium terebinthinaceum 105 Scrophularia lanceolata 168 Silver Buffaloberry* 82 Scurf-pea 148 Silver Maple* 216 Scutellaria galericulata 144 Silvery Cinquefoil 80 Scutellaria lateriflora 144 Silvery False Spleenwort 196 Self-heal (Heal-all) 184 Silvery Scurf-pea 148 Seneca Snakeroot 58 Single Delight 21 Senna hebecarpa 94 Sissileleaf Bellwort 171 Sensitive Fern 198 Sisyrinchium angustifolium 136 Serviceberry - Downy* 11 Skullcap - Mad-dog 144 Serviceberry - Running* 12 Skullcap - Marsh 144 Serviceberry - Saskatoon* 11 Skunk Cabbage 188 Serviceberry - Shadblow* 11 Sky Blue Aster 150 Shagbark Hickory* 221 Slender Lady's-tresses 59 Shaggy Blazing Star 177 Slender Yellow Wood Sorrel 80 Shaggy Soldier 47 Slippery Elm* 214 Shepherd’s Purse 35 Small Enchanter’s Nightshade 36 Shepherdia argentea 82 Small Green Wood Orchid 118 Shining Bedstraw 18 Small White Lady’s-slipper 42 Shinleaf 38 Small White Violet 28 Shooting Star 16/153 Small Yellow Wild Indigo 93 260

Name Page Name Page Smartweed - Dotted 58 Spinulose Wood Fern 196 Smilax ecirrhata 132 Spiny Sow Thistle 109 Smilax lasioneura 132 Spiraea alba 73 Smilax rotundifolia 133 Spiraea tomentosa 185 Smilax tamnoides 133 Spiranthes cernua 59 Smooth Blue Aster 149 Spiranthes lacera 59 Smooth Oxeye 99 Spiranthes romanzoffiana 59 Smooth Rattlesnake Root 168 Spotted Bee-balm 181 Smooth Rockcress 35/116 Spotted Coralroot 163 Smooth Rose Mallow 30 Spotted Geranium 153 Smooth Rose* 157 Spotted Knapweed 175 Smooth Solomon's Seal 119 Spotted Lady’s-thumb 183 Smooth Sumac 129 Spotted Water Hemlock 66 Snakemouth Orchid 167 Spreading Dogbane 34/169 Sneezeweed 97 Spreading Wood Fern 202 Snowberry* 170 Squirrel Corn 42 Soapwort - Pink 159 St. Johnswort - Common 78 Soapwort - White 26 St. Johnswort - Great 78 Soft Maple* 216 St. Johnswort - Marsh 169 Solanum dulcamara 146/159 Stachys palustris 182 Solanum nigrum 39 Staghorn Sumac 130 Solanum plycanthemum 39 Staphylea trifolia 39 Solidago altissima 106 Starflower 20 Solidago caesia 106 Starry Campion 33 Solidago flexicaulis 106 Starry False Solomon’s Seal 56 Solidago gigantea 106 Starweed 27 Solidago juncea 107 Starwort 27 Solidago missouriensis 107 Steeplebush* 185 Solidago nemoralis 107 Stellaria longifolia 27 Solidago riddellii 107 Stellaria media 27 Solidago rigida 108 Stemless Lady’s Slipper 163 Solidago speciosa 108 Stickywilly 18 Solidago uliginosa 108 Stiff Coreopsis 95 Solidago ulmifolia 109 Stiff Gentian 142 Sonchus arvensis 109 Stiff Goldenrod 108 Sonchus asper 109 Stiff Sunflower 98 Sorbus americana 224 Stiff Tickseed 95 Sorbus aucuparia 224 Stiff-haired Sunflower 98 Sorbus decora 225 Stinging Nettle 131 Southern Arrowwood* 74 Stinking Chamomile 44 Sow Thistles 109 Stinkweed 40 Sparganium eurycarpum 133 Strawberry - Virginia 17 Spear thistle 176 Strawberry - Woodland 17 Spearwort Buttercup 82 Strawberry-blite 192 Speckled Alder* 205 Striped Maple* 215 Spiked Blazing Star 178 Strophostyles helvola 174 261

Name Page Name Page Stylophorum diphyllum 83 Symphyotrichum puniceum- blue 150 Sugar Maple* 216 Symphyotrichum puniceum - white 49 Sumac - Fragrant* 129 Symphyotrichum sericeum 150/179 Sumac - Smooth* 129 Symphyotrichum shortii 151 Sumac - Staghorn* 130 Symphyotrichum urophyllum 50 Summer Coralroot 163 Symphytum officinale 169 Summer Phlox 155 Symplocarpus foetidus 188 Sundews 51,52 Tall Bellflower 145 Sunflowers 97ff Tall Blue Lettuce 146 Swamp Alder* 205 Tall Buttercup 81 Swamp Beggartick 95 Tall Drymocallis 16 Swamp Birch* 207 Tall Goldenrod 106 Swamp Blackberry* 25 Tall Larkspur - blue 141 Swamp Buttercup 82 Tall Larkspur - white 30 Swamp Candles 80 Tall Meadow Rue 124 Swamp Maple* 216 Talus Slope Penstemon 31 Swamp Milkweed 186 Tamarack* 227 Swamp Raspberry* 25 Tanacetum parthenium 50 Swamp Rose* 158 Tanacetum vulgare 110 Swamp Saxifrage 128 Tansy 110 Swamp Vervain 151 Taraxacum officinale 110 Swamp White Oak* 218 Tatarian Honeysuckle* 31 Sweet Birch* 206 Taxus canadensis 227 Sweet Black-eyed Susan 103 Tephrosia virginiana 94 Sweet Cicely 70 Teucrium canadense 33 Sweet Fern* 126/192 Thalictrum dasycarpum 124 Sweet Flag 125 Thalictrum dioicum 124 Sweet Gale* 128 Thalictrum thalictroides 160 Sweet Rocket (pink) 153 Thalictrum venulosum 124 Sweet Rocket (white) 20 Thelypteris noveboracensis 204 Sweet Scented Joe-Pye Weed 187 Thelypteris palustris var. pubescens 200 Sweet White Violet 28 Thimbleberry 25 Symphoricarpos albus 170 Thimbleweed - Candle Anemone 125 Symphoricarpos occidentalis 39 Thimbleweed -Tall 125 Symphoricarpos orbiculatus 40/171 Thin-leaved Coneflower 103 Symphyotrichum cordifolium - blue 149 Thistle - Bull 176 Symphyotrichum cordifolium - white 48 Thistle - Canada 175 Symphyotrichum ericoides 48 Thistle - Field 175 Symphyotrichum firmum 49 Thistle - Swamp 176 Symphyotrichum laeve var. laeve 149 Thlaspi arvense 40 Symphyotrichum lanceolatum 48 Three-toothed Cinquefoil 26 Symphyotrichum lateriflorum 49 Threeleaf Goldthread 15 Symphyotrichum novae-angliae 179 Threelobed Bedstraw 19 Symphyotrichum oblongifolium 149 Thuja occidentalis 229 Symphyotrichum ontarionis 49 Thyme-leaf Speedwell 41/146 Symphyotrichum oolentangiense 150 Tiarella cordifolia 40 262

Name Page Name Page Ticktrefoil - Pointed-leaved 172 True Forget-me-not 136 Ticktrefoil - Showy 172 Tsuga canadensis 227 Tilia americana 213 Tuberous Grasspink 162 Tobacco Root 59 Tufted Loosestrife 111 Toothed Wood Fern 196 Turk’s-cap Lily 190 Toothwort - Cut-leaved 36 Turtlehead 41 Toothwort - Two-leaved 36 Twayblades 91/117 Torilis japonica 73 Twinflower 30/166 Touch-me-not - Pale 85 Twinleaf 20 Touch-me-not - Spotted 85 Twoleaf Miterwort 38 Toxicodendron rydbergii 130 Typha angustifolia 194 Tradescantia bracteata 160 Typha latifolia 194 Tradescantia ohiensis 146 Ulmus americana 213 Tragopogon dubius 110 Ulmus pumila 213 Tragopogon lamottei 110 Ulmus rubra 214 Tragopogon pratensis 110 Ulmus thomasii 214 Trailing Arbutus 16 Upright Carrion Flower 132 Trailing Wild Bean 174 Urtica dioica 131 Trembling Aspen* 211 Uvularia grandiflora 93 Triadenum fraseri 169 Uvularia sessilifolia 171 Trientalis borealis 20 Vaccinium vitis-idaea 43 Trifolium pratense 187 Valeriana edulis 59 Trifolium repens 74 Valeriana officinalis 74 Trillium - Drooping 27 Veiny Meadow Rue 124 Trillium - Large-flowered 27 Veiny Pea 173 Trillium - Nodding 27 Veiny Vetchling 173 Trillium - Prairie 161 Verbascum thapsus 111 Trillium - Purple 160 Verbena hastata 151 Trillium - Snow 28 Verbena stricta 185 Trillium - Sweet Betsy 160 Verbena urticifolia 59 Trillium - Toadshade 161 Verbesina alternifolia 111 Trillium - Yellow 86, 120 Vernonia fasciculata 188 Trillium cernuum 27 Veronica americana 136 Trillium cuneatum 160 Veronica serpyllifolia 41/146 Trillium erectum 160 Veronicastrum virginicum 59 Trillium flexipes 27 Vervain - Blue Swamp 151 27 Vervain - Hoary 185 Trillium luteum 86, 120 Vervain - White 59 Trillium nivale 28 Viburnum dentatum 74 Trillium recurvatum 161 Viburnum lantana 74 Trillium sessile 161 Viburnum lentago 75 Triosteum perfoliatum 191 Viburnum opulus var. americanum 75 Trout Lily 17,84,165 Viburnum opulus var. opulus 76 Trout Lily - Dwarf 165 Viburnum rafinesquianum 76 Trout Lily - White 17 Vicia americana 174 Trout Lily - Yellow 84 Vicia villosa 148 263

Name Page Name Page Vinca minor 136 Water Lobelia 30 Viola blanda var. palustriformis 28 Water Smartweed 183 Viola canadensis 28 Wayfaring-tree* 74,75 137 Western Oak Fern 202 Viola lanceolata 28 Western Poison Ivy 130 Viola macloskeyi 28 Western Sand Cherry* 22 Viola pedata 137 Western Silver Aster 150/179 Viola pedatifida 137 Western Sunflower 98 Viola pubescens 83 Western Wallflower 89 Viola renifola 29 White Arrowleaf Aster 50 Viola sagittata 137 White Ash* 222 Viola sororia 138 White Avens 19 Viola sororia forma priceana 138 White Birch* 206 Violet - Arrow-leaved 137 White Campion 32 Violet - Bird's-foot 137 White Clover 74 Violet - Canada 28 White Cockle 32 Violet - Common Blue 138 White Doll’s Daisy 45 Violet - Confederate 138 White Elm* 213 Violet - Downy Yellow 83 White False Indigo 43 Violet - Kidney-leaved 29 White Fawn Lily 17 Violet - Lance-leaved 28 White Heath Aster 48 Violet - Macloskey's 28 White Lady's Slipper 42 Violet - Marsh 137 White Maple* 216 Violet - Prairie Birdsfoot 137 White Oak* 217 Violet - Sweet white 28 White Panicle Aster 48 Violet Woodsorrel 155 White Pine* 228 Virgin's Bower 15 White Popular* 217 Virginia Bluebells 143 White Prairie Clover 51 Virginia Creeper 115 White Rattlesnake Root 168 Virginia Ground Cherry 92 White Sage 50 Virginia Mountain Mint 72 White Snakeroot 61 Virginia Raspberry* 159 White Spruce* 226 Virginia Spring Beauty 15/152 White Sweet Clover 56 Virginia Stickseed 54 White Trillium 27 Virginia Tephrosia 94 White Troutlily 17 Virginia Waterleaf 142 White Turtlehead 41 Vitis riparia 131 White Vervain 59 Wafer Ash* 220 White Walnut* 223 Wahoo* 153 White Wood Aster 46 Waldsteinia fragarioides 83 Wholeleaf Rosinweed 104 Walking Fern 201 Whorled Loosestrife 79 Water Arum 76 Whorled Milkweed 64 Water Chickweed 27 Whorled Milkwort 58 Water Hemlock 66 Widowsfrill 33 Water Horsetail 128/194 Wild Bean (Groundnut) 182 Water Knotweed 183 Wild Bergamot 178 264

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