INDEX TO PLANT NAMES

Abies balsamea, p. 94 Agrimonia Absinth, p. 324 gryposepala, p. 199 Abutilon theophrasti, p. 232 parviflora, p. 199 Acalypha rhomboidea, p. 223 pubescens, p. 199 Acanthaceae, p. 297 rostellata, p. 199 Acanthus Family, p. 297 striata, p. 199 Aceraceae, p. 228 Agropyron repens, p. 101 Acer Agrostemma githago, p. 161 ginnala, p. 228 Agrostis negundo, p. 228 gigantea, p. 104 nigrum, p. 228 hyemalis, p. 104 pensylvanicum, p. 229 perennans, p. 104 platanoides, p. 228 stolonifera, p. 104 rubrum, p. 229 Ailanthus altissima, p. 219 saccharinum, p. 229 Ajuga reptans, p. 279 saccharum, p. 228 Alcea rosea, p. 233 spicatum, p. 229 Alder Achillea Black, p. 226 millefolium, p. 337 Green, p. 139 ptarmica, p. 340 Mountain, p. 139 Acinos arvensis, p. 282 Speckled, p. 139 Acorus calamus, p. 114 Aletris farinosa, p. 124 Actaea Alfalfa, p. 211 pachypoda, p. 170 Alismataceae, p. 97 rubra, p. 170 Alisma Adder’s-mouth plantago-aquatica, p. 97 Green, p. 132 subcordatum, p. 97 White, p. 132 triviale, p. 97 Adenocaulon bicolor, p. 323 Alkali Grass, p. 106 Adlumia fungosa, p. 173 Alkanet, p. 276 Aegopodium podagraria, p. 253 Alliaria petiolata, p. 184–185 Aesculus Allium glabra, p. 229 canadense, p. 123 hippocastanum, p. 229 cepa, p. 123 Agalinis sativum, p. 123 gattingeri, p. 292 schoenoprasum, p. 123–124 purpurea, p. 292 tricoccum, p. 123 tenuifolia, p. 292 vineale, p. 123 Agastache cernuum, p. 123 foeniculum, p. 283 Alnus nepetoides, p. 283 crispa, p. 139 scrophulariifolia, p. 283 incana, p. 139 Ageratum rugosa, p. 139 Hardy, p. 327 viridis, p. 139 Agoseris glauca, p. 314 Alopecurus aequalis, p. 102 357 358 Index to Plant Names

Althaea Andropogon officinalis, p. 233 gerardii, p. 102 rosea, p. 233 scoparius, p. 102 Alum Root, p. 188 Anemone Alyssum canadensis, p. 169 alyssoides, p. 175, 181 cylindrica, p. 169 Hoary, p. 183 multifida, p. 169 Pale, p. 175, 181 quinquefolia, p. 169 Sweet, p. 181 virginiana, p. 169 Amaranth Canada, p. 169 Family, p. 154 Red, p. 169 Green, p. 155 Wood, p. 169 Purple, p. 155 Anemonella thalictroides, p. 170 Red, p. 155 Anethum graveolens, p. 249, 251 Amaranthaceae, p. 154 Angelica Amaranthus atropurpurea, p. 253 albus, p. 154 venenosa, p. 249 blitoides, p. 154 Annonaceae, p. 172 cruentus, p. 155 Antennaria hybridus, p. 155 howellii, p. 326 hypochondriacus, p. 155 margaritacea, p. 326 powellii, p. 155 neglecta, p. 326 retroflexus, p. 155 parlinii, p. 326 tuberculatus, p. 154 plantaginifolia, p. 326 Amaryllidaceae, p. 125 Anthemis Amaryllis Family, p. 125 arvensis, p. 337 Ambrosia cotula, p. 337 artemisiifolia, p. 320, 322 tinctoria, p. 334 psilostachya, p. 321–322 Anthriscus sylvestris, p. 251 trifida, p. 320, 322 Antirrhinum majus, p. 294 Amelanchier, p. 196, 198 Apiaceae, p. 247 arborea, p. 198 Apios americana, p. 206 bartramiana, p. 197 Aplectrum hyemale, p. 128 interior, p. 198 Apocynaceae, p. 264 laevis, p. 198 Apocynum sanguinea, p. 198 androsaemifolium, p. 265 spicata, p. 198 cannabinum, p. 265 Amerorchis rotundifolia, p. 130 ×floribundum, p. 265 Ammannia robusta, p. 241 Apple, p. 197 Ammophila breviligulata, p. 102 Aquifoliaceae, p. 226 Amorpha Aquilegia canescens, p. 206 canadensis, p. 166 fruticosa, p. 206 vulgaris, p. 166 Amphicarpaea bracteata, p. 206 Arabidopsis thaliana, p. 185 Anacardiaceae, p. 224 Arabis Anagallis arvensis, p. 260 canadensis, p. 184 Anaphalis margaritacea, p. 327 caucasica, p. 184 Anchusa officinalis, p. 276 divaricarpa, p. 184 Andromeda glaucophylla, p. 258 drummondii, p. 184 Index to Plant Names 359

glabra, p. 175, 176, 183 Arum Family, p. 113 hirsuta, p. 184 Aruncus dioicus, p. 202 holboellii, p. 183 Asarum canadense, p. 145 laevigata, p. 184 Asclepiadaceae, p. 265 lyrata, p. 185 Asclepias missouriensis, p. 184 amplexicaulis, p. 266 perstellata, p. 184 exaltata, p. 268 shortii, p. 184 hirtella, p. 266 Araceae, p. 113 incarnata, p. 268 Aralia purpurascens, p. 266 hispida, p. 246 sullivantii, p. 267 nudicaulis, p. 246 syriaca, p. 266–268 racemosa, p. 246 tuberosa, p. 266 Araliaceae, p. 246 verticillata, p. 265 Arbor Vitae, p. 94 viridiflora, p. 266 Arceuthobium pusillum, p. 144–145 Ash Arctium minus, p. 321 Black, p. 261 Arctostaphylos uva-ursi, p. 257 Blue, p. 261 Arenaria Green, p. 262 lateriflora, p. 158 Prickly, p. 218 serpyllifolia, p. 158 Pumpkin, p. 262 stricta, p. 158 Red, p. 262 Arethusa bulbosa, p. 132 Wafer, p. 218 Arisaema White, p. 261 dracontium, p. 114 Asimina triloba, p. 172 triphyllum, p. 114 Asparagus Aristolochiaceae, p. 145 officinalis, p. 117 Aristolochia serpentaria, p. 145 Aspen Armoracia Bigtooth, p. 133 aquatica, p. 179, 181 lacustris, p. 179, 181 Quaking, p. 133 rusticana, p. 180 Asphodel Aronia False, p. 125 melanocarpa, p. 196 Asteraceae, p. 309 prunifolia, p. 196 Asteroideae, p. 311 Arrow-arum, p. 114 Aster, p. 340 Arrow-grass, p. 96 borealis, p. 341–343 Family, p. 96 brachyactis, p. 328, 342 Arrow-wood, p. 301–302 ciliolatus, p. 341 Downy, p. 302 cordifolius, p. 341 Arrowhead, p. 97 dumosus, p. 343 Artemisia ericoides, p. 343 absinthium, p. 324 laevis, p. 341 annua, p. 324 lanceolatus, p. 343 biennis, p. 324 lateriflorus, p. 343 campestris, p. 324 macrophyllus, p. 341 ludoviciana, p. 326 nemoralis, p. 342 pontica, p. 324 novae-angliae, p. 341 vulgaris, p. 324 ontarionis, p. 343 360 Index to Plant Names

oolentagiensis, p. 341 Baneberry pilosus, p. 342 Red, p. 170 ptarmicoides, p. 342 White, p. 170 puniceus, p. 341 Baptisia sagittifolius, p. 341 lactea, p. 213 sericeus, p. 342 tinctoria, p. 213 tartaricus, p. 327 Barbarea umbellatus, p. 342 orthoceras, p. 179 Arrow-leaved, p. 341 verna, p. 178 vulgaris, p. 178 Big-leaved, p. 341 Barberry Bog, p. 342 Family, p. 170 Bushy, p. 343 Common, p. 170 Calico, p. 343 Japanese, p. 170 Flat-topped, p. 342 Barley, p. 100–101 Frost, p. 342 Barnesioideae, p. 311 Heart-leaved, p. 341 Barnyard Grass, p. 100 Heath, p. 343 Bartonia virginica, p. 262 Lake Ontario, p. 343 Basil Lindley’s, p. 341 Wild, p. 282 New England, p. 341 Basil-thyme, p. 282 Panicled, p. 343 Basswood, p. 232 Purple-stemmed, p. 341 Batchelor’s-button, p. 321 Rayless, p. 328, 342 Bayberry Family, p. 137 Rush, p. 341–342 Beach Grass, p. 102 Silky, p. 342 Bean Sky-blue, p. 341 Common, p. 206 Smooth, p. 341 Wild, p. 206 Swamp, p. 341 Bearberry, p. 257 White Prairie, p. 343 Beard-tongue, p. 290 Astragalus Hairy, p. 291 canadensis, p. 210 Bedstraw, 298 Marsh, p. 300 cicer, p. 209 Northern, p. 299–300 neglectus, p. 210 Rough, p. 300 Atriplex patula, p. 153 Yellow, p. 299 Aureolaria Bee-balm, p. 280 flava, p. 292 Beech, p. 140 pedicularia, p. 292 Family, p. 139 virginica, p. 292 Beech-drops, 295 Avena sativa, p. 104 False, p. 256 Avens, p. 199 Beggar’s-lice, p. 274 Purple, p. 202 Beggar-ticks, p. 213, 323 Rough, p. 203 Nodding, p. 330 Spring, p. 199 Bellflower Family, p. 306 Baby’s-breath, p. 162 American, p. 309 Balsaminaceae, p. 229 Creeping, p. 309 Bamboo Marsh, p. 306 Mexican, p. 149 Tussock, p. 309 Index to Plant Names 361

Bellis perennis, p. 340 Birch, p. 138 Bellwort, p. 119, 123 Family, p. 138 Bentgrass, p. 104 European White, p. 139 Bent Paper, p. 139 Autumn, p. 104 White, p. 139 Creeping, p. 104 Yellow, p. 139 Berberidaceae, p. 170 Birthwort Family, p. 145 Berberis Bishop’s-cap, p. 188 thunbergii, p. 170 Bishop’s-weed, p. 253 vulgaris, p. 170–171 Bittersweet, p. 226, 285 Bergamot Family, p. 226 Wild, p. 280 American, p. 226–227 Berteroa incana, p. 183 Oriental, p. 226–227 Berula erecta, p. 252 Black-alder, p. 226 Besseya bullii, p. 288 Black-bindweed, p. 149 Betulaceae, p. 138 Black-eyed Susan, p. 335 Betula Black-gum, p. 241 alleghaniensis, p. 139 Black-haw, p. 302 papyrifera, p. 139 Bladdernut, p. 227 pendula, p. 139 Family, p. 227 pumila, p. 139 Bladderwort Bidens Family, p. 295 beckii, p. 329 Common, p. 296 cernua, p. 325, 330 Flat-leaved, p. 297 cernuus, p. 325, 330 Horned, p. 296 comosa, p. 325, 330 Purple, p. 296 comosus, p. 325, 330 Blanketflower, p. 335, 338 connata, p. 325, 331 Blazing Star, p. 327 connatus, p. 325, 331 Blephilia coronata, p. 330 ciliata, p. 281 coronatus, p. 330 hirsuta, p. 281 discoidea, p. 323 Blite discoideus, p. 323 Alkali, p. 153 frondosa, p. 323 Sea, p. 152 frondosus, p. 323 Strawberry, p. 153 vulgata, p. 323 Blue-buttons, p. 305 vulgatus, p. 323 Blue-eyed-grass, p. 126 Bignoniaceae, p. 294 Blue-eyed-Mary, p. 291 Bilberry, p. 258 Blue-joint, p. 104 Dwarf, p. 258 Blue-lips, p. 291 Oval-leaved, p. 258 Bluebell, p. 272, 306 Tall, p. 258 Virginia, p. 272 Bindweed Blueberry, p. 258 Black, p. 149 Canada, p. 259 Field, p. 269 Highbush, p. 258 Hedge, p. 269 Hillside, p. 259 Low, p. 269 Low Sweet, p. 259 362 Index to Plant Names

Bluegrass, p. 106 Bromus Annual, p. 106 ciliatus, p. 105 Canada, p. 106 secalinus, p. 105 Kentucky, p. 106 tectorum, p. 105 Bluestem Brooklime, p. 293 Big, p. 102 Broom-rape Family, p. 295 Little, p. 102 Brussels-sprouts, p. 177 Bluet, p. 298 Buckbean, p. 262 Mountain, p. 321 Family, p. 261 Blueweed, p. 272 Boehmeria cylindrica, p. 144 Buckeye Bog-laurel, p. 257 Family, p. 229 Bog-rosemary, p. 258 Ohio, p. 229 Bog Orchid Buckthorn Tall Northern, p. 131 Family, p. 230 Tall White, p. 131 Alder-leaved, p. 230 Bok-choy, p. 177 Common, p. 230 Boltonia asteroides, p. 340 Glossy, p. 230 Boneset, p. 325 Buckwheat, p. 147 False, p. 328 Family, p. 145 Late, p. 325 False, p. 149 Tall, p. 325 Fringed False, p. 149 Boraginaceae, p. 272 Buffalo-berry, p. 240 Borage, p. 272 Buffalo-bur, p. 285 Family, p. 272 Bugle, p. 279 Borago officinalis, p. 272 Bottlebrush Grass, p. 100 Bugleweed, p. 279 Bouncing Bet, p. 162 Bugloss, p. 276 Bouteloua curtipendula, p. 100 Viper’s, p. 272 Bowman’s Root, p. 203 Bugseed, p. 152 Box-elder, p. 228 Bulrush, p. 112 Bramble, p. 192 Hardstem, p. 113 Brachyelytrum erectum, p. 102 Softstem, p. 113 Brasenia schreberi, p. 165 Bunchberry, p. 253 Brassicaceae, p. 174 Burdock Brassica Common, p. 321 alba, p. 177 Bur-marigold, p. 330 juncea, p. 178 Burnet kaber, p. 175, 178 American, p. 202 napus, p. 177 Garden, p. 202 nigra, p. 178 Burnet-saxifrage, p. 252 oleracea, p. 177 rapa, p. 177 Burning-bush, p. 227 Bridal-wreath, p. 194 Bur-reed Family, p. 95 Brome Bush-honeysuckle, p. 302 Fringed, p. 105 Butomaceae, p. 97 Grass, p. 105 Butomus umbellatus, p. 97 Smooth, p. 105 Butter-and-eggs, p. 286 Index to Plant Names 363

Buttercup, p. 167 Campanuloideae, p. 306 Family, p. 165 Campanula Common, p. 168 americana, p. 306 Creeping, p. 168 aparinoides, p. 306 Early, p. 168 carpatica, p. 309 Prairie, p. 168 medium, p. 309 Small-flowered, p. 167 persicifolia, p. 309 Swamp, p. 168 portenschlagiana, p. 309 Tall, p. 168 posharskyana, p. 309 Butterfly-weed, p. 266 rapunculoides, p. 306 Butternut, p. 138 rotundifolia, p. 306–307 Butterwort, p. 296 Campion, p. 162 Buttonbush, p. 298 Bladder, p. 164 Rose, p. 162 Cabbage, p. 177 Starry, p. 164 Chinese, p. 177 White, p. 162 Cacalia Campsis radicans, p. 295 atriplicifolia, p. 323 Candytuft plantaginea, p. 323 Globe, p. 181 Cactaceae, p. 239 Cannabaceae, p. 143 Cactus Family, p. 239 Cannabis sativa, p. 143 Caesalpinoideae, p. 204 Canterbury Bells, p. 309 Cakile edentula, p. 180 Caper Family, p. 174 Calamagrostis canadensis, p. 104 Capparaceae, p. 174 Calamint, p. 282 Caprifoliaceae, p. 300 Calamintha arkansana, p. 282 Capsella bursa-pastoris, p. 181–182 Calamovilfa longifolia, p. 104 Caraway, p. 249 Calendula officinalis, p. 327 Cardamine Calla palustris, p. 114 bulbosa, p. 185 Callitrichaceae, p. 224 concatenata, p. 179 Callitriche diphylla, p. 179 hermaphroditica, p. 224 douglassii, p. 185 palustris, p. 224 flexuosa, p. 180 verna, p. 224 hirsuta, p. 180 Calopogon impatiens, p. 179 pulchellus, p. 132 ×maxima, p. 179 tuberosus, p. 132 parviflora, p. 180 Caltha palustris, p. 167 pensylvanica, p. 180 Caltrop, p. 218 pratensis, p. 180 Family, p. 218 rhomboidea, p. 185 Calypso bulbosa, p. 127 Cardaria draba, p. 181 Calystegia Cardinal-flower, p. 308 sepium, p. 269 Carduus spithamaea, p. 268 acanthoides, p. 320 Camas nutans, p. 320 White, p. 125 Carex Camassia scilloides, p. 125 aurea, p. 109 Camelina microcarpa, p. 174 bebbii, p. 109 Campanulaceae, p. 306 blanda, p. 111 364 Index to Plant Names

crinita, p. 109 Catchfly, p. 162 gracillima, p. 111 Night-flowering, p. 163 granularis, p. 111 Sleepy, p. 164 grayi, p. 110 Sweet-william, p. 164 hystericina, p. 110 Catnip, p. 284 intumescens, p. 111 Caulophyllum thalictroides, p. 171 lacustris, p. 110 Ceanothus lanuginosa, p. 110 americanus, p. 230 lupulina, p. 110 herbaceus, p. 230 pedunculata, p. 111 sanguineus, p. 230 Cedar pellita, p. 110 Red, p. 94 pensylvanica, p. 110 White, p. 94 plantaginea, p. 111 Celandine, p. 173 rostrata, p. 110 Lesser, p. 167 stipata, p. 110 Celastraceae, p. 226 utriculata, p. 110 Celastrus viridula, p. 110 orbiculata, p. 226–227 vulpinoidea, p. 110 scandens, p. 226–227 Carpet-weed, p. 156 Cenchrus longispinus, p. 99 Family, p. 156 Centaurea Carpinus caroliniana, p. 139 cyanus, p. 321 Carrion-flower, p. 118 diffusa, p. 321 Carrot dubia, p. 322 Wild, p. 249 jacea, p. 322 Carum carvi, p. 249, 251 macrocephala, p. 321 Carya maculosa, p. 321 cordiformis, p. 138 montana, p. 321 glabra, p. 138 nigrescens, p. 322 lacioniosa, p. 138 ×pratensis, p. 322 glabra, p. 138 Centaurium ovata, p. 138 erythraea, p. 263 Caryophyllaceae, p. 156 pulchellum, p. 263 Centaury, p. 263 Cashew Family, p. 224 Cephalanthus occidentalis, p. 298 Cassia Cerastium chamaecrista, p. 209 arvense, p. 159 hebecarpa, p. 209 fontanum, p. 159 Castanea dentata, p. 140 glomeratum, p. 160 Castilleja nutans, p. 160 coccinea, p. 288 pumilum, p. 160 septentrionalis, p. 288 semidecandrum, p. 159 Cat’s-ear, p. 313 tomentosum, p. 159 Cat-tail viscosum, p. 160 Family, p. 94 vulgatum, p. 159 Common, p. 95 Ceratophyllaceae, p. 164 Narrow-leaved, p. 95 Ceratophyllum Catalpa, p. 294 demersum, p. 164 speciosa, p. 294 echinatum, p. 164 Index to Plant Names 365

Cercis canadensis, p. 204 Giant, p. 159 Chaenorrhinum minus, p. 287 Jagged, p. 158 Chaerophyllum procumbens, p. 251 Mouse-ear, p. 158 Chamaecrista fasciculata, p. 209 Nodding, p. 160 Chamaedaphne calyculata, p. 258 Small Mouse-ear, p. 159 Chamomile Chicory, p. 312 Corn, p. 337 Chimaphila Scentless, p. 338 maculata, p. 255 Yellow, p. 334 umbellata, p. 255 Charlock, p. 175, 178 Chives, p. 123 Cheat, p. 105 Chondrilla juncea, p. 315 Cheeses, p. 233 Chrysanthemum Chelidonium majus, p. 173 balsamita, p. 327 Chelone glabra, p. 290 leucanthemum, p. 338 Chenopodiaceae, p. 152 parthenium, p. 338 Chenopodium ×superbum, p. 327 album, p. 154 Chrysosplenium americanum, p. 187 ambrosioides, p. 154 Cichorium intybus, p. 312–313 aristatum, p. 152 Cicuta botrys, p. 153 bulbifera, p. 251–252 capitatum, p. 153 maculata, p. 253 gigantospermum, p. 153 Cimicifuga racemosa, p.170 glaucum, p. 154 Cinquefoil. p. 199 hybridum, p. 153 Common, p. 199 leptophyllum, p. 153 Five-finger, p. 199 pratericola, p. 153 Marsh, p. 203 rubrum, p. 153 Prairie, p. 203 subglabrum, p. 153 Prairie, p. 200 Cherry Rough, p. 200 Choke, p. 195 Nanking, p. 195 Rough-fruited, p. 200 Perfumed, p. 195 Shrubby, p. 191 Pie, p. 196 Silvery, p. 200 Pin, p. 196 Three-toothed, p. 203 Sand, p. 195 Circaea Sour, p. 196 alpina, p. 242 Sweet, p. 196 lutetiana, p. 242 Wild Black, p. 195 Cirsium Chervil, p. 251 altissiumum, p. 320 Wild, p. 251 arvense, p. 319 Chess discolor, p. 320 Downy, p. 105 muticum, p. 319 Chestnut, p. 140 palustre, p. 319 Chickweed pitcheri, p. 319 Clammy, p. 160 vulgare, p. 319 Common Mouse-ear, p. 159 Cistaceae, p. 235 Common, p. 158 Citrullus lanatus, p. 305 Curtis’ Mouse-ear, p. 160 Cladium mariscoides, p. 113 Field, p. 159 Clammy-weed, p. 174 366 Index to Plant Names

Claytonia Compass Plant, p. 333 caroliniana, p. 156 Compositae, p. 309 virginica, p. 156 Composite Family, p. 309 Clearweed, p. 144 Comptonia peregrina, p. 137 Cleavers, p. 299 Coneflower, p. 334 Clematis Cutleaf, p. 334 occidentalis, p. 166 Gray-headed, p. 334 virginiana, p. 166 Purple, p. 312, 339 Cleome hassleriana, p. 174 Tall, p. 334 Clinopodium vulgare, p. 282 Conioselinum chinense, p. 251 Clintonia borealis, p. 123 Conium maculatum, p. 251 Clover Conopholis americana, p. 295 Alsike, p. 212 Conringia orientalis, p. 175, 183 Bush, p. 213 Consolida ambigua, p. 166 Hop, p. 212 Convallaria majalis, p. 124 Little Hop, p. 211–212 Low Hop, p. 211–212 Convolvulaceae, p. 268 Purple Prairie, p. 209 Convolvulus arvensis, p. 269 Rabbitfoot, p. 212 Conyza canadensis, p. 338 Red, p. 212 Coontail, p. 164 White, p. 212 Coptis trifolia, p. 168 White Sweet, p. 210 Coral-root, p. 128 Yellow Sweet, p. 210 Early, p. 129, 132 Clusiaceae, p. 233 Fall, p. 129 Cocklebur, p. 320 Spotted, p. 129 Coeloglossum viride, p. 131 Striped, p. 129 Coffee-tree Coralberry, p. 304 Kentucky, p. 206 Corallorhiza Cohosh maculata, p. 129 Blue, p. 171 odontorhiza, p. 129 Colic-root, p. 124 striata, p. 129 Collards, p. 177 trifida, p. 129, 132 Collinsia Cord Grass, p. 100 parviflora, p. 291 Coreopsis verna, p. 291 grandiflora, p. 330 Collinsonia canadensis, p. 280 lanceolata, p. 330 Coltsfoot, p. 328 palmata, p. 330 Sweet, p. 318, 328 tinctoria, p. 330 Columbine Garden, p. 166 tripteris, p. 330 Wild, p. 166 Finger, p. 330 Columbo Plains, p. 330 American, p. 263 Prairie, p. 330 Comandra umbellata, p. 144 Corispermum hyssopifolium, p. 152 Comfrey, p. 272 Corn, p. 100 Northern Wild, p. 274 Corn-cockle, p. 161 Prickly, p. 272 Corn-lily, p. 123 Commelinaceae, p. 115 Corn-salad, p. 304 Commelina communis, p. 115 Cornaceae, p. 253 Index to Plant Names 367

Cornus Cress alternifolia, p. 253 Bitter, p. 179 amomum, p. 254 Early Winter, p. 178 canadensis, p. 253 Field, p. 181 drummondii, p. 254 Hoary, p. 181 florida, p. 254 Lake, p. 179, 181 foemina, p. 254 Lake, p. 185 racemosa, p. 254 Mouse-ear, p. 185 rugosa, p. 254 Northern Water, p. 179 sericea, p. 254 Penny, p. 181 stolonifera, p. 254 Pink Spring, p. 185 Coronilla varia, p. 210 Rock, 183 Corydalis Sand, p. 185 aurea, p. 173 Spring, p. 185 sempervirens, p. 173 Wall Rock, p. 184 Golden, p. 173 Water, p. 179 Pink, p. 173 Yellow, p. 177–178 Corylus Crotalaria sagittalis, p. 208 Croton glandulosus, p. 223 americana, p. 139 Crowberry cornuta, p. 139 Family, p. 224 Cosmos bipinnatus, p. 337 Black, p. 224 Costmary, p. 327 Crowfoot, p. 167 Cotton-grass, p. 112 Bristly, p. 168 Tawny, p. 112 Cursed, p. 167 Cottonweed, p. 154 Hooked, p. 167 Cottonwood, p. 134 White Water, p. 166 Cowbane, p. 252 Yellow Water, p. 166 Cow Herb, p. 162 Crown-vetch, p. 210 Cow-parsnip, p. 249, 252 Cruciferae, p. 174 Cowslip, p. 167, 259 Cryptotaenia canadensis, p. 252 Cow-wheat, p. 290 Cuckoo-flower, p. 180 Crab Cucumber, 305 Wild, p. 197 Bur, p. 305 Crabgrass, p. 100 Wild, p. 305 Cranberry Cucurbitaceae, p. 305 High-bush, p. 302 Cucurbita pepo, p. 305 Large, p. 257 Cucumis Small, p. 257 melo, p. 305 Crane’s-bill, p. 217 sativus, p. 305 Crassulaceae, p. 186 Cudweed Crataegus, p. 198 Clammy, p. 327 Creeping Charlie, p. 283 Fragrant, p. 327 Creeping-snowberry, p. 257 Low, p. 327 Crepis Culver’s-Root, p. 292 capillaris, p. 315 Cup-plant, p. 329 tectorum, p. 315 Cupressaceae, p. 94 368 Index to Plant Names

Currant Dalea purpurea, p. 209 Black, p. 190 Dalibarda repens, p. 198 Golden, p. 189 Dandelion Northern Black, p.190 Common, p. 314 Red, p. 190 Dwarf, p. 314 Skunk, p. 190 Fall, p. 313 Swamp Black, p. 189 False, p. 314 Swamp Red, p. 190 Red-seeded, p. 314 Wild Black, p. 190 Danthonia spicata, p. 104 Cuscutaceae, p. 269 Datura stramonium, p. 285 Cuscuta Daucus carota, p. 249 cephalanthi, p. 270 Day-flower, p. 115 coryli, p. 270 Day-lily, p. 122 epithymum, p. 270 Decodon verticillatus, p. 241 glomerata, p. 270 Dead-nettle, p. 283 gronovii, p. 269 Delphinium ambiguum, p. 166 polygonorum, p. 270 Dentaria Custard-apple Family, p. 172 diphylla, p. 179 Cut-grass, p. 103 laciniata, p. 179 Cycloma atriplicifolium, p. 153 maxima, p. 179 Cymbalaria muralis, p. 288 Descurainia Cynoglossum pinnata, p. 177 boreale, p. 274 sophia, p. 177 officinale, p. 274 Desmodium virginianum, p. 274 canadense, p. 214 Cyperaceae, p. 108 canescens, p. 214 Cyperus ciliare, p. 214 bipartitus, p. 111 cuspidatum, p. 215 esculentus, p. 111 glabellum, p. 215 filiculmuis, p. 111 glutinosum, p. 213 lupulinus, p. 111 illinoense, p. 214 rivularis, p. 111 marilandicum, p. 213 strigosus, p. 111 nudiflorum, p. 213 Cypress obtusum, p. 214 Summer, p. 153 paniculatum, p. 215 Cypress Family, p. 94 rigidum, p. 214 Cypripedium rotundifolium, p. 206 acaule, p. 127 sessifolium, p. 214 arietinum, p. 128 Devil’s-club, p. 246 calceolus, p. 127 Dewberry candidum, p. 128 Northern, p. 193 reginae, p. 128 Swamp, p. 193 Dewdrop, p. 198 Dactylis glomerata, p. 105 Dianthus Daisy armeria, p. 161 English, p. 340 barbatus, p. 161 Ox-eye, p. 338 carthusianorum, p. 161 Peruvian, p. 337 deltoides, p. 161 Shasta, p. 327 plumarius, p. 161 Index to Plant Names 369

Dicentra Dolls-eyes, p. 170 canadensis, p. 174 Draba cucullaria, p. 173 arabisans, p. 175, 183 Dictamnus albus, p. 218 reptans, p. 183 Diervilla lonicera, p. 302 verna, p. 183 Digitalis Dracocephalum parviflorum, p. 281 ambigua, p. 294 Dragon-root, p. 114 grandiflora, p. 294 Dragonhead, p. 281 lanata, p. 294 False, p. 284 lutea, p. 294 Droceraceae, p. 186 purpurea, p. 290, 294 Drocera Digitaria ×anglica, p. 186 ischaemum, p. 100 intermedia, p. 186 sanguinalis, p. 100 linearis, p. 186 Dill, p. 249, 251 rotundifolia, p. 186 Dioscoreaceae, p. 125 Dropseed, p. 104 Dioscorea villosa, p. 125 Duchesnea indica, p. 199 Diplotaxis Duckweed, p. 114 muralis, p. 175, 178 Family, p. 114 tenuifolia, p. 178 Greater, p. 114 Dipsacaceae, p. 305 Star, p. 114 Dipsacus Dulichium arundinaceum, p. 111 fullonum, p. 305 Dutchman’s-breeches, p. 173 laciniatus, p. 305 Dwarf-dandelion, p. 314 sylvestris, p. 305 Dirca palustris, p. 240 Echinacea Dock, p. 145 pallida, p. 339 Bitter, p. 147 purpurea, p. 312, 339 Curly, p. 147 Echinochloa crusgalli, p. 100 Great Water, p. 147 Echinocystis lobata, p. 305 Pale, p. 147 Echinops sphaerocephalus, p. 319 Prairie, p. 328 Echium vulgare, p. 272 Water, p. 147 Eclipta prostrata, p. 337 Dodder Elaeagnaceae, p. 240 Family, p. 269 Elaeagnus Clover, p. 270 angustifolia, p. 240 Dog-fennel, p. 337 umbellata, p. 240 Dog-strangling Vine, p. 265 Elatinaceae, p. 235 Dogbane Elatine minima, p. 235 Family, p. 264 ElderCommon, p. 301 Spreading, p. 265 ElderberryRed, p. 301 Dogwood, p. 254 Elecampane, p. 333 Family, p. 253 Eleocharis Alternate-leaved, p. 253 acicularis, p. 112 Flowering, p. 254 elliptica, p. 112 Gray, p. 254 obtusa, p. 112 Pagoda, p. 253 ovata, p. 112 Pale, p. 254 palustris, p. 112 Round-leaved, p. 254 quadrangulata, p. 112 370 Index to Plant Names

smallii, p. 112 spissum, p. 112 tenuis, p. 112 vaginatum, p. 112 Eleusine indica, p. 100 virginicum, p. 112 Elm, p. 142 viridicarinatum, p. 112 Family, p. 141 Erodium cicutarium, p. 217 American, p. 142 Erophila verna, p. 183 Cork, p. 142 Erucastrum gallicum, p. 177 Red, p. 142 Eryngium yuccifolium, p. 247 Siberian, p. 142 Erysimum Slippery, p. 142 cheiranthoides, p. 175 Elodea inconspicuum, p. 175 canadensis, p. 98 repandum, p. 175 nuttallii, p. 98 Erythronium Elymus albidum, p. 122 canadensis, p. 101 americanum, p. 122 hystrix, p. 100 Eschscholzia californica, p. 173 virginicus, p. 101 Euonymus Elytrigia repens, p. 101 alata, p. 227 Empetraceae, p. 224 atropurpurea, p. 227 Empetrum nigrum, p. 224 europaea, p. 227 Enchanter’s-nightshade, p. 242 fortunei, p. 227 Epifagus virginiana, p. 295 obovata, p. 227 Epigaea repens, p. 257 Winged, p. 227 Epilobium Eupatorium angustifolium, p. 243 altissimum, p. 325 cilatum, p. 244 coelestinium, p. 327 coloratum, p. 244 maculatum, p. 325 hirsutum, p. 244 perfoliatum, p. 325 leptophyllum, p. 244 purpureum, p. 325 palustre, p. 244 parviflorum, p. 244 rugosum, p. 323, 325 strictum, p. 244 serotinum, p. 325 Epipactis helleborine, p. 128 Euphorbiaceae, p. 220 Eragrostis Euphorbia cilianensis, p. 106 corollata, p. 222 spectabilis, p. 106 cyparissias, p. 222–223 Erechtites hieraciifolia, p. 323 dentata, p. 221 Ericaceae, p. 256 esula, p. 223 Erigenia bulbosa, p. 251 geyeri, p. 221 Erigeron glyptosperma, p. 221 annuus, p. 340 helioscopia, p. 222 philadelphicus, p. 340 humistrata, p. 222 pulchellus, p. 340 maculata, p. 222 strigosus, p. 340 marginata, p. 222 Eriocaulaceae, p. 115 nutans, p. 222 Eriocaulon peplus, p. 222 aquaticum, p. 115 polygonifolia, p. 221 septangulare, p. 115 serpyllifolia, p. 221 Eriophorum vermiculata, p. 222 Index to Plant Names 371

Euphrasia Flax, p. 216 officinalis, p. 290 Family, p. 216 stricta, p. 290 Common, p. 216 Euthamia, 331 Fairy, p. 216 graminifolia, p. 331 Perennial, p. 216 remota, p. 331 Fleabane, p. 340 Evening-primrose, p. 242 Common, p. 340 Family, p. 242 Daisy, p. 340 Everlasting, p. 326 Floerkea proserpinacoides, p.224 Pearly, p. 327 Flower-of-an-hour, p. 233 Eyebright, p. 290 Flowering-rush Family, p. 97 Flowering-wintergreen, p. 219 Fabaceae, p. 203 Foamflower, p. 188 Faboideae, p. 204 Foeniculum vulgare, p. 251 Fagaceae, p. 139 Fog Fruit, p. 277 Fagopyrum esculentum, p. 147 Forget-me-not, p. 274 Fagus grandifolia, p. 140 Garden, p. 274 Fairgrounds Grass, p. 100 Four-o’clock Fallopia, p. 148–149 Family, p. 155 False-flax, p. 174 Wild, p. 155 False Mermaid, p. 224 Fowl Manna Grass, p. 106 Family, p. 224 Fowl Meadow Grass, p. 106 Foxglove Fennel, p. 251 Common, p. 290, 294 Fescue False, p. 292 Meadow, p. 108 Grecian, p. 294 Nodding, p. 108 Yellow, p. 294 Red, p. 107 Foxtail Six-weeks, p. 108 Giant, p. 102 Festuca Grass, p. 101 brachyphylla, p. 107 Green, p. 102 obtusa, p. 108 Millet, p. 101 octoflora, p. 108 Yellow, p. 101 ovina, p. 107 Fragaria pratensis, p. 108 vesca, p. 202 rubra, p. 107 virginiana, p. 202 saximontana, p. 107 Frasera caroliniensis, p. 263 subverticillata, p. 108 Fraxinus Feverfew, p. 338 americana, p. 261 Figwort, p. 290 nigra, p. 261 Filago arvensis, p. 326 pennsylvanica, p. 262 Filipendula rubra, p. 202 profunda, p. 262 Fir quadrangulata, p. 261 Balsam, p. 94 Fringed Orchid, p. 131 Fireweed, p. 323 Orange, p. 131 Flag, p. 126 Prairie, p. 131 Southern Blue, p. 126 Purple, p. 131 Wild Blue, p. 126 Ragged, p. 131 Yellow, p. 126 White, p. 131 372 Index to Plant Names

Froelichia gracilis, p. 154 Prairie, p. 264 Frog’s-bit Family, p. 98 Red-stemmed, p. 264 Frostweed, p. 236 Rose, p. 263 Fumariaceae, p. 173 Rose-pink, p. 263 Fumitory Spurred, p. 263 Family, p. 173 Stiff, p. 263 Climbing, p. 173 White, p. 264 Gentiana Gaillardia, p. 338 alba, p. 264 aristata, p. 335 andrewsii, p. 264 pulchella, p. 338 flavida, p. 264 Galearis spectabilis, p. 130 linearis, p. 264 Galeopsis tetrahit, p. 284 puberulenta, p. 264 Galinsoga rubricaulis, p. 264 parviflora, p. 337 Gentianella, p. 262 quadriradiata, p. 337 quinquefolia, p. 263 Galium Gentianopsis, p. 262 aparine, p. 299 crinita, p. 263 asprellum, p. 300 procera, p. 263 boreale, p. 299–300 Geocaulon lividum, p. 144 brevipes, p. 300 Geraniaceae, p. 217 circaezans, p. 299 Geranium, p. 217 concinnum, p. 300 Family, p. 217 labradoricum, p. 300 bicknellii, p. 218 lanceolatum, p. 299 carolinianum, p. 217 mollugo, p. 300 maculatum, p. 217 obtusum, p. 300 molle, p. 218 palustre, p. 300 pusillum, p. 218 pilosum, p. 299 robertianum, p. 217 tinctorium, p. 300 sanguineum, p. 217 trifidum, p. 300 Wild, p. 217 triflorum, p. 299 Gerardia, p. 292 verum, p. 299 Geum, p. 199 Garlic, p. 123 aleppicum, p. 200 Wild, p. 123 canadense, p. 203 Field, p. 123 laciniatum, p. 203 Gas-plant, p. 218 macrophyllum, p. 200 Gaultheria rivale, p. 203 hispidula, p. 257 triflorum, p. 202 procumbens, p. 258 urbanum, p. 200 Gaura biennis, p. 242 vernum, p. 199 Gay-wings, p. 219 virginianum, p. 203 Gaylussacia baccata, p. 258 Gilia rubra, p. 270 Gentianaceae, p. 262 Ginger Gentian Wild, p. 145 Family, p. 262 Ginseng, p. 246 Bog, p. 264 Dwarf, p. 246 Bottle, p. 264 Family, p. 246 Fringed, p. 263 Glasswort, p. 152 Index to Plant Names 373

Glechoma hederacea, p. 282 Gourd Family, p. 305 Gleditsia triacanthos, p. 204, 206 Goutweed, p. 253 Globe-thistle, p. 319 Grama Grass, p. 100 Glyceria Gramineae, p. 98 borealis, p. 105 Grape canadensis, p. 106 Family, p. 231 grandis, p. 106 Fox, p. 231 striata, p. 106 Frost, p. 232 Glycine max, p. 215 Oregon, p. 170 Gnaphalium River-bank, p. 231 macounii, p. 327 Summer, p. 231 obtusifolium, p. 327 Grape-hyacinth, p. 124 uliginosum, p. 327 Grass Family, p. 98 Goatsbeard, p. 202 Grass-of-Parnassus, p. 187 Golden-alexanders, p. 252–253 Goldenrod, p. 331 Grass-pink, p. 132 Bluestem, p. 332 Gratiola neglecta, p. 292 Bog, p. 332 Greenbrier, p.118 Canadian, p. 333 Bristly, p. 119 Early, p. 333 Common, p. 119 Flat-topped, p. 331 Green Dragon, p. 114 Gillman’s, p. 332 Grindelia squarrosa, p. 334 Gray, p. 333 Gromwell, p. 276 Hairy, p. 332 American, p. 276 Late, p. 333 Corn, p. 276 Ohio, p. 331 Grossulariaceae, p. 189 Rough-leaved, p. 333 Ground-cherry, p. 286 Showy, p. 332 White, p. 285 Sneezewort, p. 342 Ground-hemlock, p. 93 Stiff, p. 331 Ground-ivy, p. 283 White, p. 332, 338 Groundsel Zigzag, p. 332 Common, p. 322 Goldenseal, p. 168 Gumweed, p. 334 Goldthread, p. 168 Guttiferae, p. 233 Goodyera Gymnocladus dioica, p. 206 oblongifolia, p. 128 Gypsophila pubescens, p. 128 repens, p. 128 elegans, p. 162 tesselata, p. 128 muralis, p. 162 Gooseberry paniculata, p. 162 Family, p. 189 scorzonerifolia, p. 162 Northern, p. 189 Swamp, p. 189 Habenaria Wild, p. 189 blephariglottis, p. 131 Goosefoot ciliaris, p. 131 Family, p. 152 clavellata, p. 131 Maple-leaved, p. 153 dilatata, p. 131 Oakleaved, p. 154 flava, p. 131 Goosegrass, p. 100, 299 hookeri, p. 130 374 Index to Plant Names

lacera, p. 131 Helianthemum leucophaea, p. 131 bicknellii, p. 236 obtusata, p. 130 canadense, p. 236 orbiculata, p. 130 Helianthus, p. 335 psycodes, p. 131 annuus, p. 336 viridis, p. 131 decapetalus, p. 336 Hackberry, p. 142 divaricatus, p. 336 Dwarf, p. 142 giganteus, p. 336 Hackelia maximilianii, p. 336 deflexa, p. 274 occidentalis, p. 336 virginiana, p. 274 pauciflorus, p. 335 Halenia deflexa, p. 263 petiolaris, p. 336 Haloragaceae, p. 244 strumosus, p. 336 Hamamelidaceae, p. 190 tuberosus, p. 336 Hamamelis virginiana, p. 190 Heliopsis helianthoides, p. 339 Harbinger-of-spring, p. 251 Helleborine, p. 128 Hard Grass, p. 100 Hemerocallis fulva, p. 122 Hardhack, p. 194 Hemlock, p. 94 Poison, p. 251 Harebell, p. 306 Water, p. 251–253 Harlequin Ground, p. 93 Rock, p. 173 Hemlock-parsley, p. 251 Hawk’s-beard, p. 315 Hemp, p. 143 Hawkweed Family, p. 143 Mouse-ear, p. 314 Water, p. 154 Northern, p. 317 Hemp-nettle, p. 284 Orange, p. 317 Henbane, p. 285 Prairie, p. 316 Hepatica Spotted, p. 316 acutiloba, p. 168 Yellow, p. 316 canadensis, p. 168 Hazel, p. 139 Round-lobed, p. 168 Beaked, p. 139 Sharp-lobed, p. 168 Heal-all, p. 282 triloba, p. 168 Heart’s-ease, p. 151 Heracleum Heath Family, p. 256 lanatum, p. 249, 252 Heather maximum, p. 249–250, 252 False, p. 235 Herb Robert, p. 217 Hedeoma Herb Sophia, p. 177 hispida, p. 280 Herniaria glabra, p. 157 pulegioides, p. 280 Hesperis matronalis, p. 184 Hedge-hyssop, p. 292 Heteranthera dubia, p. 116 Hedge-parsley, p. 248 Heuchera Hedyotis americana, p. 188 canadensis, p. 298 ×hirsuticaulis, p. 188 longifolia, p. 298 richardsonii, p. 188 Helenium Hibiscus autumnale, p. 334 moscheutos, p. 233 flexuosum, p. 335 trionum, p. 233 Index to Plant Names 375

Hickory, p. 137 Hordeum Bitternut, p. 138 jubatum, p. 101 Kingnut, p. 138 vulgare, p. 101 Pignut, p. 138 Horehound, p. 281 Shagbark, p. 138 Water, p. 279–280 Shellbark, p. 138 Horned Pondweed Family, p. 96 Hieracium Hornwort Family, p. 164 aurantiacum, p. 315, 317 Horse-balm, p. 280 caespitosum, p. 315 Horse-chestnut, p. 229 flagellare, p. 316 Horse-nettle, p. 285 gronovii, p. 316, 317 Horseradish, p. 180 kalmii, p. 317 Horse-weed, p. 338 lachenalii, p. 316 Hound’s-tongue, p. 274 longipilum, p. 316, 317 Houstonia maculatum, p. 316 canadensis, p. 298 murorum, p. 315 longifolia, p. 298 paniculatum, p. 317 Huckleberry, p. 258 pilosella, p. 314 Hudsonia tomentosa, p. 235 piloselloides, p. 315–316 Humulus lupulus, p. 143 scabrum, p. 317 Hyacinth, Wild, p. 125 umbellatum, p. 317 Hybanthus concolor, p. 236 venosum, p. 316 Hydrastis canadensis, p. 168 Hippocastanaceae, p. 229 Hydrocharitaceae, p. 98 Hippuridaceae, p. 245 Hydrocotyle Hippuris vulgaris, p. 245 americana, p. 248 Holly umbellata, p. 248 Family, p. 226 Hydrophyllaceae, p. 271 Michigan, p. 226 Hydrophyllum Mountain, p. 226 appendiculatum, p. 271 Hollyhock, p. 233 canadense, p. 271 Holosteum umbellatum, p. 158 virginianum, p. 271 Honewort, p. 252 Hyoscyamus niger, p. 285 Honeysuckle Hypericum Family, p. 300 ascyron, p. 234 Amur, p. 303 boreale, p. 235 Bush, p. 302 canadense, p. 235 Fly, p. 304 ellipticum, p. 234 Glaucous, p. 303 gentianoides, p. 234 Hairy, p. 303 kalmianum, p. 233 Japanese, p. 303 majus, p. 235 Mountain Fly, p. 303 mutilum, p. 235 Swamp Fly, p. 303 perforatum, p. 234 Tartarian, p. 304 prolificum, p. 234 Hop Clover, p. 212 punctatum, p. 234 Little, p. 211–212 pyramidatum, p. 234 Low, p. 211–212 Hypochaeris radicata, p. 313 Hop-hornbeam, p. 139 Hypoxis hirsuta, p. 125 Hop-tree, p. 218 Hyssop, p. 283 Hops, p. 143 Giant, p. 283 376 Index to Plant Names

Hyssopus officinalis, p. 283 Joe-Pye-Weed, p. 325 Hystrix patula, p. 100 Green-stemmed, p. 325 Johnny-jump-up, p. 239 Iberis umbellata, p. 181 Jointweed, p. 147 Ilex verticillata, p. 226 Juglandaceae, p. 137 Impatiens Juglans capensis, p. 230 regia, p. 138 glandulifera, p. 229 cinerea, p. 138 pallida, p. 230 nigra, p. 138 Indian Cucumber-root, p. 123 Jumpseed, p. 149 Indian Grass, p. 103 Juncaceae, p. 116 Indian-hemp, p. 265 Juncaginaceae, p. 96 Indian-pipe, p. 256 Juncus Family, p. 256 alpinoarticulatus, p. 117 Indian-plantain, p. 323 alpinus, p. 117 Indian-tobacco, p. 308 arcticus, p. 117 Indigo balticus, p. 117 False, p. 206, 212 canadensis, p. 117 Inula helenium, p. 333 dudleyi, p. 117 Ipomoea effusus, p. 117 pandurata, p. 269 nodosus, p. 117 purpurea, p. 269 tenuis, p. 117 Ipomopsis rubra, p. 270 torreyi, p. 117 Iridaceae, p. 125 Juneberry, p. 196, 198 Iris, p. 126 June Grass, p. 105 Family, p. 125 Mountain, p. 197 Dwarf Lake, p.126 Juniper germanica, p.126 Creeping, p. 94 lacustris, p.126 Ground, p. 94 pseudacorus, p.126 Juniperus pumila, p.126 communis, p. 94 versicolor, p.126 horizontalis, p. 94 virginica, p. 126 virginiana, p. 94 Ironweed, p. 328 Justicia americana, p. 297 Yellow, p. 335 Ironwood, p. 139 Kale, p. 177 Isopyrum biternatum, p. 170 Kalmia Isotria verticillata, p. 132 angustifolia, p. 257 Iva xanthifolia, p. 325 polifolia, p. 257 Ivy Kenilworth Ivy, p. 288 Kenilworth, p. 288 Kentucky Coffee-tree, p. 206 King Devil, p. 316 Jack-in-the-pulpit, p. 114 Kitten-tail, p. 288 Jacob’s Ladder, p. 270 Klamath-weed, p. 234 Japanese-lantern-plant, p. 286 Knapweed, p. 321 Jeffersonia diphylla, p. 171 Short-fringed, p. 322 Jerusalem Artichoke, p. 336 Spotted, p. 321 Jerusalem-oak, p. 153 Tumble, p. 321 Jimson Weed, p. 285 White-flowered, p. 321 Index to Plant Names 377

Knautia arvensis, p. 305 Lathyrus Knawel, p. 160 japonicus, p. 208 Knotweed, p. 147 latifolius, p. 208 Dooryard, p. 149 maritimus, p. 208 Giant, p. 149 ochroleucus, p. 208 Japanese, p. 149 palustris, p. 208 Virginia, p. 149 pratensis, p. 208 Kochia scoparia, p. 153 Koeleria macrantha, p. 105 sylvestris, p. 208 Kohlrabi, p. 177 tuberosus, p. 208 Krigia venosus, p. 208 biflora, p. 314 Lauraceae, p. 172 virginica, p. 314 Laurel Family, p. 172 Kuhnia eupatoriodes, p. 328 Laurel Bog, p. 257 Labiatae, p. 277 Sheep, p. 257 Labrador-tea, p. 257 Lead-plant, p. 206 Lactuca Leaf-cup, p. 322, 329, 337 biennis, p. 315 canadensis, p. 318 Leatherleaf, p. 258 hirsuta, p. 318 Leatherwood, p. 240 muralis, p. 318 Lechea saligna, p. 315 intermedia, p. 236 serriola, p. 318 minor, p. 236 Lactucoideae, p. 311 mucronata, p. 236 Ladies’-tresses pulchella, p. 236 Hooded, p. 129 villosa, p. 236 Nodding, p. 129 Ledum groenlandicum, p. 257 Slender, p. 129 Leek Lady’s-slipper Wild, p. 123 Pink, p. 127 Ram’s-head, p. 128 Leersia Showy, p. 128 oryzoides, p. 103 Stemless, p. 127 Leguminosae, p. 203 White, p. 128 Lemnaceae, p. 114 Yellow, p. 127 Lemna Lady’s-thumb, p. 151 minor, p. 114 Lambs-quarters, p. 154 trisulca, p. 114 Lamiaceae, p. 277 Lentibulariaceae, p. 295 Lamium Leontodon amplexicaule, p. 283 autumnalis, p. 313 maculatum, p. 283 taraxacoides, p. 313 purpureum, p. 284 Laportea canadensis, p. 143 Leonurus cardiaca, p. 284 Lappula squarrosa, p. 274 Lepidium Lapsana communis, p. 312 campestre, p. 181 Larix laricina, p. 93 densiflorum, p. 183 Larkspur, p. 166 virginicum, p. 183 378 Index to Plant Names

Lespedeza Linum capitata, p. 215 cartharticum, p. 216 cuneata, p. 212 medium, p. 216 hirta, p. 215 perenne, p. 216 intermedia, p. 215 striatum, p. 216 violacea, p. 215 sulcatum, p. 216 virginica, p. 215 usitatissimum, p. 216 Lettuce Liparis Prickly, p. 318 liliifolia, p. 133 Tall Blue, p. 315 loeselii, p. 133 Liriodendron tulipifera, p. 172 Wall, p. 318 Listera Wild, p. 318 convallarioides, p. 132 Willow-leaved, p. 315 cordata, p. 132 Leucophysalis grandiflora, p. 285 Lithospermum Leucospora multifida, p. 291 arvense, p. 276 Liatris, p. 338 canescens, p. 276 aspera, p. 327 caroliniense, p. 276 cylindracea, p. 327 latifolium, p. 276 scariosa, p. 327 officinale, p. 276 spicata, p. 327 Littorella uniflora, p. 297 Ligustrum Live-forever, p. 186 obtusifolium, p. 261 Lizard’s-tail, p. 133 vulgare, p. 261 Family, p. 133 Lilac, p. 261 Lobelioideae, p. 306 Wild, p. 230 Lobelia Liliaceae, p. 117 cardinalis, p. 308 Lilium dortmanna, p. 306 lancifolium, p. 122 inflata, p. 308 michiganense, p. 122 kalmii, p. 308 philadelphicum, p. 122 siphilitica, p. 308–309 Lily, p. 118, 122 spicata, p. 309 Family, p. 117 Brook, p. 308 Great Blue, p. 308 Michigan, p. 122 Pale Spiked, p. 309 Tiger, p. 122 Water, p. 306 Wood, p. 122 Lobularia maritima, p. 181 Lily-of-the-valley, p. 124 Locust Wild, p. 124 Black, p. 204 Limnanthaceae, p. 224 Bristly, p. 205 Linaceae, p. 216 Clammy, p. 204 Linaria Honey, p. 204, 206 canadensis, p. 286 Lolium perenne, p. 101 dalmatica, p. 286 Lonicera vulgaris, p. 286–287 ×bella, p. 304 Linden Family, p. 232 caerulea, p. 303 Lindera benzoin, p. 172 canadensis, p. 304 Linderna dubia, p. 292 dioica, p. 303 Linnaea borealis, p. 301 hirsuta, p. 303 Index to Plant Names 379

japonica, p. 303 Lysimachia maackii, p. 303 ciliata, p. 260 morrowii, p. 304 clethroides, p. 260 oblongifolia, p. 303 lanceolata, p. 261 tartarica, p. 304 nummularia, p. 260 villosa, p. 303 ×producta, p. 260 Loosestrife punctata, p. 260 Family, p. 240 quadriflora, p. 261 False, p. 243 quadrifolia, p. 260 Fringed, p. 260 terrestris, p. 260 Garden, p. 260 thyrsiflora, p. 260 Gooseneck, p. 260 Lythraceae, p. 240 Purple, p. 241 Lythrum Swamp, p. 241 Tufted, p. 260 alatum, p. 241 Whorled, p. 241 salicaria, p. 241 Lopseed, p. 277 Lotus Maclura pomifera, p. 143 American, p. 165 Madder Family, p. 298 corniculata, p. 210, 212 Magnoliaceae, p. 171 Lousewort, p. 290 Magnolia, p. 171 Love Grass, p. 106 Family, p. 171 Ludwigia ×soulangiana, p. 172 alternifolia, p. 243 stellata, p. 172 palustris, p. 243 Mahonia aquifolium, p. 171 polycarpa, p. 243 Maianthemum canadense, p. 124 Lunaria annua, p. 181 Malaxis Lungwort monophylla, p. 132 Tall, p. 272 unifolia, p. 132 Lupine Mallow Wild, p. 209 Family, p. 232 Lupinus Common, p. 233 perennis, p. 209 Marsh, p. 233 polyphyllus, p. 209 Musk, p. 233 Luzula Rose, p. 233 acuminata, p. 116 Vervain, p. 233 multiflora, p. 116 Maltese-cross, p. 162 Lychnis Malus chalcedonica, p. 162 coronaria, p. 162 coronaria, p. 197 Lycium barbarum, p. 285 pumila, p. 197 Lycopersicon esculentum, p. 286 Malvaceae, p. 232 Lycopus Malva americanus, p. 279 alcea, p. 233 asper, p. 280 moschata, p. 233 rubellus, p. 280 neglecta, p. 233 uniflorus, p. 279 rotundifolia, p. 233 virginicus, p. 279 Manna Grass, p. 105 380 Index to Plant Names

Maple Melilotus Family, p. 228 alba, p. 210 Amur, p. 228 officinalis, p. 210 Black, p. 228 Menispermaceae, p. 171 Mountain, p. 229 Menispermum canadense, p. 171 Norway, p. 228 Mentha Red, p. 229 Silver, p. 229 arvensis, p. 283 Striped, p. 229 ×piperita, p. 282 Sugar, p. 228 spicata, p. 282 Mare’s-tail, p. 245 suaveolens, p. 282 Family, p. 245 Menyanthaceae, p. 262 Marigold Menyanthes trifoliata, p. 262 Bur, p. 330 Mermaid-weed, p. 245 Marsh, p. 167 Merrybells, p. 119, 122 Pot, p. 327 Water, p. 329 Mertensia Marrubium vulgare, p. 281 paniculata, p. 272 Marsh-elder, p. 325 virginica, p. 272–273 Marsh-marigold, p. 167 Mexican-tea, p. 154 Marsh Wild-Timothy, p. 104 Mezereum Family, p. 239 Matricaria Mignonette discoidea, p. 324 Family, p. 185 maritima, p. 338 Yellow, p. 185 matricarioides, p. 324 perforata, p. 338 Milk-vetch, p. 209 recutita, p. 338 Canadian, p. 210 Matrimony Vine, p. 285 Chick-pea, p. 209 May-apple, p. 171 Cooper’s, p. 210 Meadow-beauty, p. 242 Milkweed Meadow-rue Family, p. 265 Early, p. 169 Common, p. 266 Northern, p. 169 Green, p. 266 Purple, p. 170 Poke, p. 268 Meadow-sweet, p. 194 Medeola virginiana, p. 123 Prairie, p. 266 Medicago Purple, p. 267 falcata, p. 211 Smooth, p. 267 lupulina, p. 210 Swamp, p. 268 sativa, p. 211 Whorled, p. 265 Medick Milkwort Family, p. 219 Black, p. 210 Millet Megalodonta beckii, p. 329 Foxtail, p. 101 Melampyrum lineare, p. 290 Melastomataceae, p. 241 Mimulus Melastome Family, p. 241 glabratus, p. 291–292 Melic moschatus, p. 291 False, p. 105 ringens, p. 291 Index to Plant Names 381

Mint Motherwort, p. 284 Family, p. 277 Mountain-ash Dog, p. 282 European, p. 191 Horse, p. 280 Mud-plantain, p. 116 Mountain, p. 283 Mugwort, p. 324 Pineapple, p. 282 Western, p. 326 Wild, p. 283 Muhlenbergia Wood, p. 281 glomerata, p. 104 Minuartia michauxii, p. 158 mexicana, p. 104 Mirabilis schreberi, p. 102, 104 hirsuta, p. 155 nyctaginea, p. 155 Muhly, p. 103 Mistletoe Mulberry, p. 143 Family, p. 144 Family, p. 142 Christmas, p. 144 Red, p. 143 Dwarf, p. 144 White, p. 143 Mitchella repens, p. 298 Mullein, p. 288 Mitella Moth, p. 288 diphylla, p. 188 White, p. 288 nuda, p. 188 Muscari botryoides, p. 124 Miterwort Musk Flower, p. 291 False, p. 188 Mustard Naked, p. 188 Family, p. 174 Moehringia lateriflora, p. 158 Black, p. 178 Molluginaceae, p. 156 Dog, p. 177 Mollugo verticillata, p. 156 Field, p. 177 Monarda didyma, p. 280 Garlic, p. 184–185 fistulosa, p. 278, 280–281 Hare’s-ear, p. 175, 183 punctata, p. 280 Hedge, p. 178 Moneses uniflora, p. 255 Indian, p. 178 Money-plant, p. 181 Tansy, p. 177 Moneywort, p. 260 Tower, p. 175, 183 Monkey-flower, p. 291 Treacle, p. 175 Yellow, p. 291–292 Tumble, p. 178 Monotropaceae, p. 256 White, p. 177 Monotropa Wormseed, p. 175 hypopitys, p. 256 Myosotis uniflora, p. 256 arvensis, p. 276 Moonseed, p. 171 laxa, p. 274 Family, p. 171 micrantha, p. 276 Moraceae, p. 142 scorpioides, p. 274 Morning Glory, p. 269 Family, p. 268 stricta, p. 276 Morus sylvatica, p. 274–275 alba, p. 143 verna, p. 274 rubra, p. 143 Myosoton aquaticum, p. 159 Moss-pink, p. 270 Myricaceae, p. 137 Moss-rose, p. 156 Myrica gale, p. 137 382 Index to Plant Names

Myriophyllum Oak alterniflorum, p. 245 Black, p. 140–141 exalbescens, p. 245 Bur, p. 141 farwellii, p. 245 Chinquapin, p. 141 heterophyllum, p. 245 Dwarf Chinquapin, p. 141 sibiricum, p. 245 Jerusalem, p. 153 spicatum, p. 246 Pin, p. 141 tenellum, p. 244 Red, p. 140–141 verticillatum, p. 245 Scarlet, p. 141 Shingle, p. 140 Naiad Family, p. 96 Swamp White, p. 141 Najadaceae, p. 96 White, p. 141 Najas Yellow, p. 141 flexilis, p. 96 Oats, p. 104 guadalupensis, p. 96 Obedient Plant, p. 284 marina, p. 96 Oenothera Nannyberry, p. 302 biennis, p. 243 Nasturtium officinale, p. 179 clelandii, p. 243 Nelumbo lutea, p. 165 fruticosa, p. 243 Nemopanthus mucronatus, p. 226 laciniata, p. 242 Nepeta cataria, p. 284 oakiesana, p. 243 Nettle parviflora, p. 243 Family, p. 143 perennis, p. 243 Dead, p. 283 pilosella, p. 243 False, p. 144 villosa, p. 243 Hemp, p. 284 Oleaceae, p. 261 Stinging, p. 143 Oleaster Family, p. 240 Wood, p. 143 New Jersey Tea, p. 231 Olive Family, p. 261 Nicotiana tabacum, p. 286 Onagraceae, p. 242 Nightshade, p. 285 Onion, p. 123 Family, p. 284 Nodding Wild, p. 123 Argentine, p. 285 Oplopanax horridus, p. 246 Black, p. 285 Opuntia Hairy, p. 285 fragilis, p. 239 Nimblewill, p. 102, 104 humifusa, p. 239 Ninebark, p. 194 Orange-grass, p. 234 Nipplewort, p. 312 Orchard Grass, p. 105 Nuphar Orchidaceae, p. 127 advena, p. 165 Orchid variegata, p. 165 Family, p. 127 Nut-grass, p. 111 Blunt-leaf, p. 130 Nut-sedge Bog, p. 131 Yellow, p. 111 Bracted, p. 131 Nyctaginaceae, p. 155 Club-spur, p. 130, 131 Nymphaeaceae, p. 165 Hooker’s, p. 130 Nymphaea odorata, p. 165 Rein, p. 130 Nyssaceae, p. 241 Round-leaved, p. 130 Nyssa sylvatica, p. 241 Tubercled, p. 131 Index to Plant Names 383

Orchis Papaver rotundifolia, p. 130 orientale, p. 172 spectabilis, p. 130 rhoeas, p. 172 Round-leaved, p. 130 somniferum, p. 172 Showy, p. 130 Parietaria pensylvanica, p. 144 Oregano, p. 283 Parnassia Oregon-grape, p. 170 glauca, p. 188 Origanum vulgare, p. 283 palustris, p. 188 Ornithogalum umbellatum, p. 125 parviflora, p. 187 Orobanchaceae, p. 295 Paronychia canadensis, p. 157 Orobanche Parsley fasciculata, p. 295 Family, p. 247 uniflora, p. 295 Hedge, p. 248 Orpine Family, p. 186 Hemlock, p. 251 Orthilia secunda, p. 255 Parsnip Osage-orange, p. 143 Cow, p. 249, 252 Osmorhiza Water, p. 252 Wild, p. 252 chilensis, p. 249 Parthenocissus claytonii, p. 249 inserta, p. 231 longistylis, p. 249 quinquefolia, p. 231 Ostrya virginiana, p. 139 vitacea, p. 231 Oswego-tea, p. 280 Partridgeberry, p. 298 Ox-tongue, p. 313 Partridge-pea, p. 209 Oxalidaceae, p. 216 Pastinaca sativa, p. 252 Oxalis Pawpaw, p. 172 acetosella, p. 216 Pea corniculata, p. 217 Beach, p. 208 dillenii, p. 217 Everlasting, p. 208 fontana, p. 216 Marsh, p. 208 stricta, p. 216–217 Partridge, p. 209 Oxypolis rigidior, p. 252 Peach, p. 195 Peanut Paintbrush Hog, p. 206 Devil’s, p.317 Pear, p. 197 Indian, p. 288 Pearlwort Northern, p. 288 Procumbent, p. 157 Panax Pedicularis quinquefolius, p. 246 canadensis, p. 290 trifolius, p. 246 lanceolata, p. 290 Panic Grass, p. 103 Pellitory, p. 144 Panicum Peltandra virginica, p. 114 capillare, p. 103 Pennyroyal, p. 280 implicatum, p. 103 Bastard, p. 282 lanuginosum, p. 103 Pennywort latifolium, p. 103 Water, p. 248 virgatum, p. 103 Penstemon Pansy digitalis, p. 291 Field, p. 239 hirsutus, p. 291 Papaveraceae, p. 172 pallidus, p. 291 384 Index to Plant Names

Penthoraceae, p. 187 Pilea Penthorum sedoides, p. 187 fontana, p. 144 Pepper-grass, p. 183 pumila, p. 144 Peppermint, p. 282 Pimpernel Periwinkle, p. 264 False, p. 292 Persicaria, p. 148–149 Scarlet, p. 260 Petasites Water, p. 260 frigidus, p. 318, 328 Yellow, p. 252 sagittatus, p. 318, 328 Pimpinella saxifraga, p. 252 Petrorhagia Pinaceae, p. 93 prolifera, p. 161 Pine saxifraga, p. 161 Family, p. 93 Petunia ×atkinsiana, p. 286 Jack, p. 93 Phalaris arundincea, p. 103 Red, p. 93 Phaseolus vulgaris, p. 215 White, p. 93 Phleum pratense, p. 102 Pineapple-weed, p. 324 Phlox Pine-drops, p. 256 bifida, p. 271 Pinesap, p. 256 divaricata, p. 271 Pinguicula vulgaris, p. 296 maculata, p. 271 Pink, p. 161 paniculata, p. 271 Family, p. 156 pilosa, p. 271 Childing, p. 161 subulata, p. 270 Cluster-head, p. 161 Cleft, p. 271 Deptford, p. 161 Garden, p. 271 Fire, p. 164 Prairie, p. 271 Garden, p. 161 Sand, p. 271 Grass, p. 161 Wild Blue, p. 271 Maiden, p. 161 Phoradendron flavescens, p. 145 Mullein, p. 162 Phragmites australis, p. 105 Saxifrage, p. 161 Phryma leptostachya, p. 277 Pinus Phyla lanceolata, p. 277 banksiana, p. 93 Physalis resinosa, p. 93 alkekengi, p. 286 strobus, p. 93 heterophylla, p. 286 Pinweed, p. 236 longifolia, p. 286 Pipewort Family, p. 115 virginiana, p. 286 Pipsissewa, p. 255 Physocarpus opulifolius, p. 194 Pitcher-plant, p. 185 Physostegia virginiana, p. 284 Family, p. 185 Phytolaccaceae, p. 155 Plane-tree Family, p. 190 Phytolacca americana, p. 155 Plantaginaceae, p. 297 Picea Plantago glauca, p. 94 arenaria, p. 297 mariana, p. 94 aristata, p. 297 Pickerel-weed Family, p. 116 cordata, p. 298 Picris lanceolata, p. 298 hieracioides, p. 313 major, p. 298 Pigweed, p. 155 patagonica, p. 297 Winged, p. 153 psyllium, p. 297 Index to Plant Names 385

rugelii, p. 298 Pokeweed, p. 155 virginica, p. 298 Family, p. 155 Plantain Polanisia dodecandra, p. 174 Family, p. 297 Polemoniaceae, p. 270 Bracted, p. 297 Polemonium Common, p. 298 Family, p. 270 English, p. 298 reptans, p. 270 Heart-leaved, p. 298 Polygalaceae, p. 219 Indian, p. 323 Polygala Mud, p. 116 cruciata, p. 219 Rattlesnake, p. 128 paucifolia, p. 219 Robin’s, p. 340 polygama, p. 219 Platanaceae, p. 190 sanguinea, p. 219 Platanthera senega, p. 219 blephariglottis, p. 131 verticillata, p. 219 ciliaris, p. 131 Fringed, p. 219 clavellata, p. 130, 131 Polygonaceae, p. 145 dilatata, p. 131 Polygonatum flava, p. 131 biflorum, p. 121 hookeri, p. 130 pubescens, p. 121 hyperborea, p. 131 Polygonella articulata, p.147 lacera, p. 131 Polygonum leucophaea, p. 131 achoreum, p. 148 obtusata, p. 130 amphibium, p. 150 orbiculata, p. 130 arenastrum, p. 149 psycodes, p. 131 arifolium, p. 148 Platanus aviculare, p. 149 ×hybrida, p. 190 careyi, p. 150 occidentalis, p. 190 cilinode, p. 149 Plum, p. 194 convolvulus, p. 149 Alleghany, p. 196 cuspidatum, p. 149 Canada, p. 196 douglasii, p. 148 Common, p. 196 hydropiper, p. 150 Wild, p. 196 hydropiperoides, p. 151 Plumeless Thistle, p. 319 lapathifolium, p. 150 Poaceae, p. 98 orientale, p. 150 Poa pensylvanicum, p. 150 annua, p. 106 persicaria, p. 151 compressa, p. 106 punctatum, p. 150 palustris, p. 106 ramosissimum, p. 148 pratensis, p. 106–107 sachalinense, p. 149 Podophyllum peltatum, p. 171 sagittatum, p. 148 Pogonia scandens, p. 149 ophioglossoides, p. 132 tenue, p. 148 Rose, p. 132 virginianum, p. 149 Whorled, p. 132 Polymnia Poison-hemlock, p. 251 canadensis, p. 322, 337 Poison-ivy, p. 225 uvedalia, p. 329 Poison-oak, p. 225 Pondweed Family, p. 95 386 Index to Plant Names

Pontederiaceae, p. 116 Prenanthes Pontederia cordata, p. 116 alba, p. 318 Poplar altissima, p. 318 Balsam, p. 134 racemosa, p. 318 Lombardy, p. 134 Prickly-ash, p. 218 White, p. 134 Prickly-pear, p. 239 Poppy Primrose Family, p. 172 Family, p. 259 California, p. 173 Bird’s-eye, p. 259 Corn, p. 173 Primulaceae, p. 259 Opium, p. 173 Primula Oriental, p. 173 mistassinica, p. 259 Wood, p. 173 veris, p. 259 Populus Prince’s Feather, p. 150, 155 alba, p. 134 Prince’s-pine, p. 255 balsamifera, p. 134 Privet, p. 261 deltoides, p. 134 Proserpinaca palustris, p. 245 grandidentata, p. 133 Prunella vulgaris, p. 282 nigra, p. 134 Prunus tremuloides, p. 133 alleghaniensis, p. 196 Porteranthus trifoliatus, p. 203 americana, p. 196 Portulacaceae, p. 156 avium, p. 196 Portulaca cerasus, p. 196 grandiflora, p. 156 domestica, p. 196 oleracea, p. 156 mahaleb, p. 196 Pot-marigold, p. 327 nigra, p. 196 Potamogetonaceae, p. 95 pensylvanica, p. 196 Potamogeton persica, p. 195 natans, p. 95 pumila, p. 195 zosteriformis, p. 95 serotina, p. 195 Potato, p. 286 tomentosa, p. 195 Potato-vine virginiana, p. 195 Wild, p. 269 Ptelea trifoliata, p. 218 Potentilla Pterospora andromedea, p. 256 anserina, p. 200 Puccinellia distans, p. 106 argentea, p. 200 Puccoon arguta, p. 200, 203 Hoary, p. 276 fruticosa, p. 191 Yellow, p. 276 inclinata, p. 200 Pulse Family, p. 203 norvegica, p. 200 Pumpkin, p. 305 palustris, p. 203 Puncture Vine, p. 218 pensylvanica, p. 200 Purslane Family, p. 156 recta, p. 200–201 Pussy-toes, p. 326 simplex, p. 199 Putty-root, p. 128, 132 tridentata, p. 203 Pycnanthemum Poverty Grass, p. 104 tenuifolium, p. 283 Prairie-clover verticillatum, p. 283 Purple, p. 209 virginianum, p. 283 Prairie Smoke, p. 202 Pyrolaceae, p. 254 Index to Plant Names 387

Pyrola longirostris, p. 166 asarifolia, p. 255 pensylvanicus, p. 168 chlorantha, p. 255 repens, p. 168 elliptica, p. 255 reptans, p. 166–167 minor, p. 255 rhomboideus, p. 168 rotundifolia, p. 255 scleratus, p. 166–167 secunda, p. 255 Rapeseed, p. 177 Pyrus Raphanus communis, p. 197 raphanistrum, p. 177, 180 coronaria, p. 197 sativus, p. 180 malus, p. 197 Rapini, p. 177 Raspberry, p. 193 Quack Grass, p. 101 Black, p. 193 Quassia Family, p. 219 Dwarf, p. 193, 203 Queen-Anne’s-lace, p. 249 Flowering, p. 195 Queen-of-the-Prairie, p. 202 Red, p. 194 Quercus Ratibida, p. 338 alba, p. 141 pinnata, 334 bicolor, p. 141 Rattlebox, p. 208 coccinea, p. 141 Rattlesnake Grass, p. 106 imbricaria, p. 140 Rattlesnake-master, p. 247 macrocarpa, p. 141 Rattlesnake-plantain, p. 128 muehlenbergii, p. 141 Rattlesnake-root, p. 318 palustris, p. 141 Rattlesnake-weed, p. 316 prinoides, p. 141 Red-osier, p. 254 rubra, p. 141 Redbud, p. 204 velutina, p. 141 Redtop, p. 104 Radish, p. 180 Reed Canary-grass, p. 103 Wild, p. 177, 180 Reed, p. 105 Ragweed, 320, 322 Reedgrass, p. 104 Common, p. 320, 322 Resedaceae, p. 185 Giant, p. 320, 322 Reseda lutea, p. 185 Western, p. 321–322 Rhamnaceae, p. 230 Ragwort, p. 322 Rhamnus Golden, p. 333 alnifolia, p. 230 Northern, p. 334 cathartica, p. 230 Round-leaved, p. 334 frangula, p. 230 Ramps, p. 123 Rheum Ranunculaceae, p. 165 rhabarbarum, p. 145 Ranunculus rhaponticum, p. 145 abortivus, p. 167 Rhexia virginica, p. 241 acris, p. 168 Rhubarb, p. 145 fascicularis, p. 168 Rhus ficaria, p. 167 aromatica, p. 225 flabellaris, p. 166–167 copallina, p. 225 flammula, p. 166–167 glabra, p. 225 gmelinii, p. 166–167 ×pulvinata, p. 225 hispidus, p. 168 typhina, p. 225 388 Index to Plant Names

Ribes Rose, p. 192 americanum, p. 190 Family, p. 191 cynosbati, p. 189 Cinnamon, p. 193 glandulosum, p. 190 French, p. 192 hirtellum, p. 189 Japanese, p. 192 Moss, p. 156 hudsonianum, p. 190 Multiflora, p. 192 lacustre, p. 189 Pasture, p. 193 nigrum, p. 190 Prairie, p. 192, 193 odoratum, p. 189 Scotch, p. 192 oxyacanthoides, p. 189 Swamp, p. 193 rubrum, p. 190 Wild, p. 192, 193 sativum, p. 190 Rosemary triste, p. 190 Bog, p. 258 Rice, Wild, p. 99 Rosin-weed, p. 329 Robinia Rotala ramosior, p. 241 hispida, p. 205 Rowan, p. 191 Rubiaceae, p. 298 pseudoacacia, p. 204–205 Rubus, 193 viscosa, p. 204 allegheniensis, p. 194 Robin’s-plantain, p. 340 canadensis, p. 194 Rock-harlequin, p. 173 flagellaris, p. 193 Rock-rose, p. 236 hispidus, p. 193 Family, p. 235 idaeus, p. 194 Rocket occidentalis, p. 193 Dame’s, p. 184 odoratus, p. 195 Sand, p. 175, 178 parviflorus, p. 195 Sea, p. 180 pensilvanicus, p. 194 Yellow, p. 178 pubescens, p. 193, 203 Rorippa setosus, p. 194 strigosus, p. 194 nasturtium-aquaticum, p. 179 Rudbeckia palustris, p. 177 fulgida, p. 335 sylvestris, p. 178 hirta, p. 335 Rosaceae, p. 191 laciniata, p. 334 Rosa, p. 192 triloba, p. 335 acicularis, p. 193 Rue arkansana, p. 193 Family, p. 218 blanda, p. 192 Goat’s, p. 209 carolina, p. 193 Rue-anemone, p. 170 cinnamomea, p. 193 False, p. 170 eglanteria, p. 192 Rumex acetosella, p. 147 gallica, p. 192 altissimus, p. 147 majalis, p. 193 crispus, p. 147 multiflora, p. 192 obtusifolius, p. 147 palustris, p. 193 orbiculatus, p. 147 pimpinellifolia, p. 192 salicifolius, p. 147 setigera, p. 192 triangulivalvis, p. 147 spinosissima, p. 192 verticillatus, p. 147 Index to Plant Names 389

Rush, p. 116 Salsola Family, p. 116 kali, p. 152 Path, p. 117 tragus, p. 152 Spike, p. 112 Saltmarsh Grass, p. 106 Twig, p. 113 Salvia officinalis, p. 280 Wood, p. 116 Sambucus Russian-olive, p. 240 canadensis, p. 301 Rutabaga, p. 177 pubens, p. 301 Rutaceae, p. 218 racemosa, p. 301 Samolus Rye, p. 101 floribundus, p. 260 Wild, p. 100 parviflorus, p. 260 Ryegrass, p. 101 Sandalwood Family, p. 144 Sandbur, p. 99 Sabatia angularis, p. 263 Sandwort Sage Rock, p. 158 Garden, p. 280 Thyme-leaved, p. 158 Wood, p. 279 Sanguinaria canadensis, p. 173 Sagina procumbens, p. 157 Sanguisorba Sagittaria canadensis, p. 202 cuneata, p. 97 minor, p. 202 graminea, p. 97 Sanicula latifolia, p. 97 canadensis, p. 248 rigida, p. 97 gregaria, p. 248 Salicaceae, p. 133 marilandica, p. 248 Salicornia europaea, p. 152–153 trifoliata, p. 248 Salix Santalaceae, p. 144 alba, p. 134 Saponaria amygdaloides, p. 134 ocymoides, p. 162 bebbiana, p. 134, 136 officinalis, p. 162–163 candida, p. 135 Sarraceniaceae, p. 185 cordata, p. 136 Sarracenia purpurea, p. 185 discolor, p. 134, 136 Sarsaparilla eriocephala, p. 137 Bristly, p. 246 exigua, p. 135–136 Wild, p. 246 Sassafras albidum, p. 172 fragilis, p. 134 Satureja humilis, p. 136 acinos, p.282 lucida, p. 134, 136 glabella, p. 282 myricoides, p. 135, 137 hortensis, p. 284 nigra, p. 135–136 vulgaris, p. 282 pedicellaris, p. 135 Saururaceae, p. 133 petiolaris, p. 135–136 Saururus cernuus, p. 133 purpurea, p. 135 Savory pyrifolia, p. 137 Summer, p. 284 ×rubens, p. 134 Saxifragaceae, p. 187 sericea, p. 135–137 Saxifraga serissima, p. 135–137 pensylvanica, p. 188 Salsify, p. 313 virginiensis, p. 188 390 Index to Plant Names

Saxifrage Senecio Family, p. 187 aureus, p. 333 Burnet, p. 252 indecorus, p. 323 Early, p. 188 obovatus, p. 334 Golden, p. 187 pauperculus, p. 334 Swamp, p. 188 vulgaris, p. 322 Scheuchzeria palustris, p. 96 Senna Schizachne purpurascens, p. 105 hebecarpa, p. 209 Schizachyrium scoparium, p. 102 Wild, p. 209 Scilla siberica, p. 125 Sericea, p. 212 Serviceberry, p. 196, 198 Scirpus Setaria acutus, p. 113 faberi, p. 102 americanus, p. 113 glauca, p. 101 atrovirens, p. 113 italica, p. 101 cyperinus, p. 113 Shadblow, p. 198 pendulus, p. 113 Sheep-laurel, p. 257 pungens, p. 113 Shepherdia canadensis, p. 240 validus, p. 113 Shepherd’s Purse, p. 181–182 Scleranthus annuus, p. 160 Shinleaf Sclerochloa dura, p. 100 One-flowered, p. 255 Scorpion-grass, p. 276 One-sided, p. 255 Scrophulariaceae, p. 286 Sickle-pod, p. 184 Scrophularia Sicyos angulatus, p. 305 lanceolata, p. 290 Side-oats Grama, p. 100 marilandica, p. 290 Silene Scutellaria antirrhina, p. 164 elliptica, p. 279 armeria, p. 162, 164 galericulata, p. 279 conica, p. 164 lateriflora, p. 279 cserii, p. 164 leonardii, p. 279 dichotoma, p. 164 parvula, p. 279 latifolia, p. 162 Sea-blite, p. 152 noctiflora, p. 163 pratensis, p. 162 Secale cereale, p. 101 stellata, p. 164 Sedge virginica, p. 164 Family, p. 108 vulgaris, p. 164 Three-way, p. 111 Silphium Sedum integrifolium, p. 329 acre, p. 187 lacinatum, p. 333 album, p. 186 perfoliatum, p. 329 purpureum, p. 186 terebinthinaceum, p. 328 sarmentosum, p. 186 Silverrod, p. 332, 338 sexangulare, p. 187 Silverweed, p. 200 spurium, p. 186 Simaroubaceae, p. 219 telephium, p. 186 Sinapis ternatum, p. 186–187 alba, p. 177 Self-heal, p. 282 arvensis, p. 175, 178 Index to Plant Names 391

Sisymbrium Solanum altissimum, p. 178 carolinense, p. 285 officinale, p. 178 dulcamara, p. 285 Sisyrinchium nigrum, p. 285 albidum, p. 126 physalifolium, p. 285 angustifolium, p. 126 ptychanthum, p. 285 rostratum, p. 285 montanum, p. 127 sarrachoides, p. 285 mucronatum, p. 127 tuberosum, p. 285 Sium suave, p. 252 Solidago, p. 331 Skeleton-weed, p. 315 altissima, p. 333 Skullcap, p. 277 bicolor, p. 332, 338 Mad-dog, p. 279 caesia, p. 332 Marsh, p. 279 canadensis, p. 333 Skunk-cabbage, p. 113 flexicaulis, p. 332 Smartweed, p. 147, 149 gigantea, p. 333 Bigseed, p. 150 hispida, p. 332 Nodding, p. 150 juncea, p. 333 Water, p. 150 nemoralis, p. 333 Smilacina ohioensis, p. 331 racemosa, p. 124 ptarmicoides, p. 342 stellata, p. 124 riddellii, p. 331 rigida, p. 331 trifolia, p. 124 rugosa, p. 333 Smilax simplex, p. 332 herbacea, p. 118 speciosa, p. 332 hispida, p. 119 uliginosa, p. 332 tamnoides, p. 119–120 Solomon-seal ecirrata, p. 118 False, p. 124 illinoensis, p. 118 Great, p. 121 lasioneura, p. 118 Small, p. 121 rotundifolia, p. 119 Sonchus Snakeroot arvensis, p. 317 Black, p. 170, 248 asper, p. 318 Seneca, p. 219 oleraceus, p. 311, 318 White, p. 323 Sorbaria sorbifolia, p. 191, 202 Snapdragon, p. 294 Sorbus Family, p. 286 americana, p. 191 aucuparia, p. 191 Dwarf, p. 287 decora, p. 191 Sneezeweed, p. 334 Sorghastrum nutans, p. 103 Sneezewort, p. 340 Sorrel Snow-in-summer, p. 159 Red, p. 147 Snow-on-the-mountain, p. 222 Sheep, p. 147 Snowberry, p. 303–304 Sour-gum, p. 241 Creeping, p. 257 Sow-thistle Soapberry, p. 240 Common, p. 318 Soapwort, p. 162 Perennial, p. 317 Solanaceae, p. 284 Prickly, p. 318 392 Index to Plant Names

Soybean, p. 215 Spurge, p. 221 Sparganiaceae, p. 95 Family, p. 220 Sparganium Cypress, p. 222 angustifolium, p. 95 Flowering, p. 222 chlorocarpum, p. 95 Leafy, p. 222 eurycarpum, p. 95 Seaside, p. 221 Spartina pectinata, p. 100 Spurrey, p. 157 Spearmint, p. 282 Sand, p. 157 Spearscale, p. 153 Squaw-root, p. 295, 334 Spearwort Squaw-weed, p. 323 Squill, p. 125 Creeping, p. 166 Squirrel-corn, p. 174 Speedwell, p. 293 Squirrel-tail, p. 101 Bird’s-eye, p. 294 St. John’s-wort, p. 234 Common, p. 293 Family, p. 233 Creeping, p. 294 Giant, p. 234 Field, p. 294 Kalm’s, p. 233 Germander, p. 293 Marsh, p. 234 Marsh, p. 293 Shrubby, p. 234 Purslane, p. 294 Spotted, p. 234 Thyme-leaved, p. 293 Stachys Water, p. 293 hyssopifolia, p. 284 Spergula arvensis, p. 157 palustris, p. 284 Spergularia tenuifolia, p. 284 marina, p. 157 Standing-cypress, p. 270 media, p. 157 Staphyleaceae, p. 227 rubra, p. 157 Staphylea trifolia, p. 227 Spicebush, p. 172 Star-flower, p. 259 Spider Plant, p. 174 Star-grass, p. 125 Spiderwort Family, p. 115 Star-of-Bethlehem, p. 125 Spikenard, p. 246 Star-thistle, p. 321 False, p. 124 Stellaria Spike Rush, p. 112 aquatica, p. 159 Spindle Tree, p. 227 borealis, p. 158 Spiraea calycantha, p. 158 crassifolia, p. 159 alba, p. 194 graminea, p. 159 tomentosa, p. 194 longifolia, p. 159 vanhouttei, p. 194 × longipes, p. 159 False, p. 191, 202 media, p. 158 Spiranthes pallida, p. 158 cernua, p. 129 Stickseed, p. 274 lacera, p. 129 Stink Grass, p. 106 romanzoffiana, p. 129 Stinking Benjamin, p. 121 Spirodela polyrhiza, p. 114 Stitchwort Sporobolus cryptandrus, p. 104 Common, p. 159 Spring Beauty, p. 156 Fleshy, p. 159 Spruce Long-leaved, p. 159 Black, p. 94 Long-stalked, p. 159 White, p. 94 Northern, p. 158 Index to Plant Names 393

Stonecrop Sweet-william Family, p. 187 Wild, p. 271 Ditch, p. 187 Switch Grass, p. 103 Mossy, p. 187 Sycamore, p. 190 Stork’s-bill, p. 217 Symphoricarpos Strawberry albus, p. 304 Barren, p. 199 occidentalis, p. 304 Indian, p. 199 orbiculatus, p. 304 Wild, p. 200 Symphytum Woodland, p. 200 asperum, p. 272 Strawberry-bush officinale, p. 272 Running, p. 227 Symplocarpus foetidus, p. 113 Streptopus Syringa vulgaris, p. 261 amplexifolius, p. 121 roseus, p. 121 Taenidia integerrima, p. 252 Strophostyles helvula, p. 206 Tamaricaceae, p. 235 Tamarack, p. 93 Stylophorum diphyllum, p. 173 Tamarisk, p. 235 Suaeda calceoliformis, p. 152–153 Family, p. 235 Sumac Tamarix parviflora, p. 235 Fragrant, p. 225 Tanacetum Poison, p. 225 huronense, p. 324 Shining, p. 225 vulgare, p. 324 Smooth, p. 225 Tansy Staghorn, p. 225 Common, p. 324 Sundew Family, p. 186 Lake Huron, p. 324 Sundrops, p. 242 Tape-grass, p. 98 Sunflower, p. 335 Taraxacum False, p. 329 erythrospermum, p. 314 Maximilian, p. 336 laevigatum, p. 314 Plains, p. 336 officinale, p. 314 Prairie, p. 335 Taxaceae, p. 93 Tall, p. 336 Taxus canadensis, p. 93 Tickseed, p. 330 Teaberry, p. 258 Western, p. 336 Tear-Thumb, p. 148 Woodland, p. 336 Teasel Swallow-wort Family, p. 305 Black, p. 265 Wild, p. 305 Swamp-candles, p. 260 Tephrosia virginiana, p. 209 Sweetbriar, p. 192 Teucrium canadense, p. 279 Sweet-cicely, p. 249 Thalictrum Sweet-clover dasycarpum, p. 170 White, p. 210 dioicum, p. 169 Yellow, p. 210 revolutum, p. 170 Sweet-coltsfoot, p. 318, 328 venulosum, p. 169 Sweet-flag, p. 114 Thaspium Sweetfern, p. 137 barbinode, p. 253 Sweet Gale, p. 137 trifoliatum, p. 252 Sweet William, p. 161 Thimbleberry, p. 195 394 Index to Plant Names

Thimbleweed, p. 169 Touch-me-not Thistle, p. 319 Family, p. 229 Bull, p. 319 Pale, p. 230 Canada, p. 319 Spotted, p. 230 Dune, p. 319 Toxicodendron European Swamp, p. 319 diversilobum, p. 225 Globe, p. 319 pubescens, p. 225 Musk, p. 320 radicans, p. 225 Nodding, p. 320 rydbergii, p. 225 Pasture, p. 320 vernix, p. 225 Pitcher’s, p. 319 Tradescantia Plumeless, p. 319 ohiensis, p. 115 Russian, p. 152 virginiana, p. 115 Star, p. 321 Tragopogon Swamp, p. 319 dubius, p. 314 Tall, p. 320 porrifolius, p. 313 Thlaspi arvense, p. 181 pratensis, p. 314 Three-seeded Mercury, p. 222 Trail Plant, p. 323 Three-square, p. 113 Trailing-arbutus, p. 257 Thuja occidentalis, p. 94 Tree-of-heaven, p. 219 Thymelaeaceae, p. 239 Trefoil Thyme Birdfoot, p. 210, 212 Basil, p. 282 Tick, p. 213 Wild, p. 282 Triadenum Thymus fraseri, p. 234 pulegioides, p. 282 virginicum, p. 234 serpyllum, p. 282 Tribulus terrestris, p. 218 Tiarella cordifolia, p. 188 Trichostoma dichotomum, p. 282 Ticklegrass, p. 104 Trientalis borealis, p. 259 Tickseed, p. 329 Trifolium Tall, p. 330 arvense, p. 212 Tickseed-sunflower, p. 330 aureum, p. 212 Tiliaceae, p. 232 campestre, p. 211–212 Tilia americana, p. 232 dubium, p. 211–212 Timothy, p. 102 hybridum, p. 212 Marsh Wild, p. 104 pratense, p. 212 Toad-flax, p. 286 repens, p. 212 Bastard, p. 144 Triglochin Blue, p. 286 maritimum, p. 97 Toadshade, p. 121 palustre, p. 97 Tobacco, p. 286 Trillium Indian, p. 308 cernuum, p. 121 Tofieldia glutinosa, p. 125 erectum, p. 121 Tomato, p. 286 flexipes, p. 121 Tooth-cup, p. 241 grandiflorum, p. 121 Toothwort nivale, p. 122 Cut-leaved, p. 179 sessile, p. 121 Two-leaved, p. 179 undulatum, p. 122 Torilis japonica, p. 248 Bent, p. 121 Index to Plant Names 395

Common, p. 121 Urticaceae, p. 143 Nodding, p. 121 Urtica dioica, p. 144 Painted, p. 122 Utricularia Red, p. 121 cornuta, p. 296 Snow, p. 122 geminiscapa, p. 296 Triodanis perfoliata, p. 306 gibba, p. 296 Triosteum intermedia, p. 297 aurantiacum, p. 301 minor, p. 297 perfoliatum, p. 301 purpurea, p. 296 Triticum aestivum, p. 101 × resupinata, p. 296 Trout-lily vulgaris, p. 296 White, p. 122 Uvularia Yellow, p. 122 grandiflora, p. 119, 123 Trumpet-creeper, p. 295 sessilifolia, p. 119 Family, p. 294 Tsuga canadensis, p. 94 Vaccaria hispanica, p. 162 Tulip-tree, p. 172 Vaccinium Tumble Grass, p. 106 Tumbleweed, p. 154 angustifolium, p. 258 Tupelo Family, p. 241 caespitosum, p. 258 Turkeyfoot, p. 102 corymbosum, p. 258 Turnip, p. 177 macrocarpon, p. 257 Turtlehead, p. 290 membranaceum, p. 258 Tussilago farfara, p. 328 myrtilloides, p. 258 Twayblade ovalifolium, p. 258 Broad-leaved, p. 132 oxycoccos, p. 257 Green, p. 132 pallidum, p. 258 Heartleaf, p. 132 Valerianaceae, p. 304 Purple, p. 133 Valerian Twig-rush, p. 113 Family, p. 304 Twin-flower, p. 301 Common, p. 305 Twinleaf, p. 171 Greek, p. 270 Twisted-stalk, p. 121 Swamp, p. 305 Twistwood, p. 302 Valeriana Typhaceae, p. 94 edulis, p. 304 Typha officinalis, p. 305 angustifolia, p. 95 uliginosa, p. 305 glauca, p. 95 × Valerianella chenopodiifolia, p. 304 latifolia, p. 95 Vallisneria americana, p. 98 Ulmaceae, p. 141 Velvet-leaf, p. 232 Ulmus Venus’ Looking Glass, p. 306 americana, p. 142 Verbascum pumila, p. 142 blattaria, p. 288 rubra, p. 142 densiflorum, p. 288 thomasii, p. 142 lychnitis, p. 288 Umbelliferae, p. 247 phlomoides, p. 288 Umbrella-wort, p. 155 thapsus, p. 288–289 Unamia ptarmicoides, p. 342 Verbenaceae, p. 276 396 Index to Plant Names

Verbena Viburnum bracteata, p. 277 acerifolium, p. 302 cassinoides, p. 302 ×engelmannii, p. 277 hastata, p. 277 dentatum, p. 302 simplex, p. 277 lantana, p. 302 lentago, p. 302 stricta, p. 277 nudum, p. 302 urticifolia, p. 277 opulus, p. 301–302 Verbesina alternifolia, p. 335 plicatum, p. 301 Vernonia prunifolium, p. 302 gigantea, p. 328 rafinesquianum, p. 302 missurica, p. 328 trilobum, p. 301 Veronica Maple-leaved, p. 302 americana, p. 293 Vicia anagallis-aquatica, p. 293 americana, p. 207 arvensis, p. 294 angustifolia, p. 207 beccabunga, p. 293 caroliniana, p. 207 cracca, p. 207 chamaedrys, p. 293–294 dasycarpa, p. 207 filiformis, p. 294 hirsuta, p. 207 longifolia, p. 293–294 sativa, p. 207 officinalis, p. 293 villosa, p. 207 peregrina, p. 294 tetrasperma, p. 207 persica, p. 294 Vinca minor, p. 264 polita, p. 294 Vincetoxicum scutellata, p. 293 hirundinaria, p. 265 serpyllifolia, p. 293–294 nigrum, p. 265 verna, p. 294 rossicum, p. 265 Veronicastrum virginicum, p. 292 Violaceae, p. 236 Viola Vervain adunca, p. 239 Family, p. 276 affinis, p. 238 Blue, p. 277 arvensis, p. 239 Creeping, p. 277 blanda, p. 238 Hoary, p. 277 canadensis, p. 239 White, p. 277 conspersa, p. 239 Vetch cucullata, p. 238 American, p. 207 lanceolata, p. 237 Bird, p. 207 macloskeyi, p. 238 Crown,210, 212 nephrophylla, p. 238 Hairy, p. 207 odorata, p. 237 palmata, p. 237–238 Sparrow, p. 207 pedata, p. 237 Spring, p. 207 pedatifida, p. 237 Wood, p. 207 pubescens, p. 239 Vetchling renifolia, p. 238 Pale, p. 208 rostrata, p. 239 Tuberous, p. 208 sagittata, p. 238 Yellow, p. 208 selkirkii, p. 238 Index to Plant Names 397

soraria, p. 238 Water-leaf striata, p. 239 Family, p. 271 tricolor, p. 239 Canada, p. 271 Violet Great, p. 271 Family, p. 236 Virginia, p. 271 Arrow-leaved, p. 238 Water-lily, p. 165 Birdfoot, p. 237 Family, p. 165 Canada, p. 239 Water Marigold, p. 329 Common Blue, p. 238 Watermelon, p. 305 Cream, p. 239 Water-meal, p. 114 Dog, p. 239 Water-milfoil, p. 244 English, p. 237 Family, p. 244 Great-spurred, p. 238 Eurasian, p. 245 Green, p. 236 Water-parsnip, p. 252 Kidney-leaved, p. 238 Water-pennywort, p. 248 Lance-leaved, p. 237 Water-pepper, p. 150 Long-spurred, p. 239 Mild, p. 151 Marsh, p. 238 Water-plantain Family, p. 97 Prairie, p. 237 Water-shield, p. 165 Sand, p. 239 Water Star-grass, p. 116 Smooth White, p. 238 Water-starwort Family, p. 224 Sweet White, p. 238 Water-weed, p. 98 Sweet, p. 237 Water-willow, p. 297 Wood, p. 238 Waterwort, p. 235 Yellow, p. 239 Family, p. 235 Virginia-snakeroot, p. 145 Wayfaring Tree, p. 302 Virgin’s Bower, p. 166 Whitlow-grass, p. 183 Viscaceae, p. 144 Whitlow-wort, p. 157 Vitaceae, p. 231 Wild-chervil, p. 251 Vitis Wild-lilac, p. 230 aestivalis, p. 231 Wild-raisin, p. 302 labrusca, p. 231 Wild-rice, p. 99 riparia, p. 231 Willow, p. 133 vinifera, p. 232 Family, p. 133 vulpina, p. 232 Autumn, p. 136 Vulpia octoflora, p. 108 Balsam, p. 137 Basket, p. 135 Wafer-ash, p. 218 Beaked, p. 134, 136 Wahoo, p. 227 Bebb’s, p. 134, 136 Wake-robin, p. 121 Black, p. 135–136 Waldsteinia fragarioides, p. 199 Blueleaf, p. 135, 137 Walnut, p. 137 Bog, p. 135 Family, p. 137 Brittle, p. 134 Black, p. 138 Crack, p. 134 English, p. 138 Diamond, p. 137 Wapato, p. 97 Meadow, p. 135–137 Water-arum, p. 114 Peach-leaved, p. 135 Watercress, p. 179 Pussy, p. 134, 136 Water-hemlock, p. 251–252 Sage, p. 135 398 Index to Plant Names

Sand-dune, p. 136 Woundwort, p. 284 Sandbar, p. 135–137 Shining, p. 134, 136 Xanthium strumarium, p. 320 Silky, p. 135–137 Xyridaceae, p. 115 Slender, p. 135–137 Xyris Upland, p. 136 difformis, p. 115 Water, p. 297 montana, p. 115 Weeping, p. 134 torta, p. 115 White, p. 134 Yellow, p. 134 Yam, p. 125 Willow-herb, p. 243 Family, p. 125 Great Hairy, p. 243 Wild, p. 125 Windflower, p. 169 Yard Grass, p. 100 Wing-stem, p. 335 Yarrow, p. 337 Wintercreeper, p. 227 Yellow-eyed-grass Family, p. 115 Wintergreen, p. 258 Yellow-pimpernel, p. 252 Family, p. 254 Yellow-poplar, p. 172 Flowering, p. 219 Yerba de Tago, p. 337 Spotted, p. 255 Yew Family, p. 93 Witch Grass, p. 103 Yucca filamentosa, p. 122 Witch Hazel, p. 190 Family, p. 190 Zannichelliaceae, p. 96 Wolfberry, p. 304 Zannichellia palustris, p. 96 Wolffia Zanthoxylum americanum, p. 218 columbiana, p. 114 Zea mays, p. 99 punctata, p. 114 Zigadenus Wood-grass, p. 104 elegans, p. 125 Wood-sage, p. 279 glaucus, p. 125 Wood Sorrel Family, p. 216 Zizania aquatica, p. 99 Wool-grass, p. 113 Zizia aurea, p. 252 Wormseed, p. 154 Zosterella dubia, p. 116 Wormwood Zygophyllaceae, p. 218 Biennial, p. 324 Sweet, p. 324 Wild, p. 324