Abies, 1
Abutilon, 72
Acalypha, 66
Acanthaceae, 107
Acanthus Family, 107
Acer, 70
Aceraceae, 70
Acerates, 90
Achillea, 130, 131
Acnida, 30
Acorus, 8
Actaea, 39
Actinomeris, 128
Adder's Mouth, 17
Adenocaulon, 118
Adlumia, 41
Aesculus, 70
Agastache, 97
Agrimonia, 55
Agrimony, 55
Agropyron, 6
Agrostemma, 33
Agrostis, 6
Ailanthus, 65
Aizoaceae, 31
Alder, 22
Alder, Black, 69
Aletris, 13
Alfalfa, 61
Alisma, 3
Alismaceae, 3
Allium, 13
Alnus, 22
Alopecurus, 4
Alsike Clover, 61
Althaea, 72
Alum Root, 50, 51
Alyssum, 42, 46
Alyssum, Yellow, 42, 46
Amaranth Family, 30
Amaranthaceae, 30
Amaranthus, 30
Amaryllidaceae, 14
Amaryllis Family, 14
Ambrosia, 114
Amelanchier, 55
American Columbo, 88
American Ipecac, 57
Ammophila, 4
Amorpha, 58
Amphicarpa, 59
Anacardiaceae, 68
Anagallis, 87
Anaphalis, 120
Andromeda, 86
Andropogon, 5
Androsace, 87
Anemone, 38, 39
Anemone, Rue, 39
Anemone, Wood, 38
Anemonella, 39
Angelica, 82
Anonaceae, 40
Antennaria, 120
Anthemis, 130
Antirrhinum, 103
Anychia, 31
Apios, 58
Aplectrum, 16
Apocynaceae, 90
Apocynum, 90
Appalachian Cherry, 54
Apple, 54
Apple of Peru, 101
Aquifoliaceae, 69
Aquilegia, 36
Arabis, 46, 47
Araceae, 8
Aralia, 80
Araliaceae, 80
Arbutus, Trailing, 85
Arceuthobium, 25
Arctium, 117
Arctostaphylos, 85
Arenaria, 32
Arethusa, 16
Arisaema, 8
Aristolochia, 25
Aristolochiaceae, 25
Arnica, 123
Arrow Arum, 9
Arrow Grass, 3
Arrow Grass Family, 3
Arrow-head, 3
Arrow Wood, 111
Artemisia, 119
Artichoke, Jerusalem, 129
Arum Family, 8
Asarum, 25
Asclepias, 90, 91
Asclepiadaceae, 90
Ash, 88
Ash, Mountain, 52
Ash, Prickly, 65
Asimina, 40
Asparagus, 10
Aspen, 19
Aster, 132-134
Atriplex, 29
Avena, 6
Avens, 56, 57
Baby's Breath, 34
Balm of Gilead, 19
Balsam, 1
Balsam Poplar, 19
Balsaminaceae, 71
Baneberry, 39
Baptisia, 61
Barbarea, 44
Barberry, 40
Barberry Family, 40
Barnyard Grass, 5
Barren Strawberry, 55
Bartonia, 88
Basil, 97
Basil-thyme, 97
Basswood, 72
Bayberry, 21
Beach Grass, 4
Beach Pea, 59
Beaked Hazel, 22
Bearberry, 85
Beard Grass, 5
Beard-tongue, 104
Bedstraw, 108, 109
Beech, 22
Beech Drops, 84, 106
Beech Family, 22
Beggar Lice, 94
Beggar Ticks, 124
Bellflower, 112
Bellflower Family, 112
Bellwort, 12
Benzoin, 41
Berberidaceae, 40
Berberis, 40
Bergamot Mint, 98
Berula, 81
Betula, 21, 22
Betulaceae, 21
Bidens, 123, 124
Bilberry, 86, 87
Bindweed, 91, 92
Bindweed, Black, 28
Birch, 21, 22
Birch Family, 21
Bird-foot Violet, 75
Birthwort Family, 25
Bishop's Cap, 51
Bistort, 28
Bitter Cress, 45, 47
Bitter Dock, 26
Bitter Nut, 21
Bittersweet, 100
Bitter-sweet, 69
Black Alder, 69
Black Ash, 88
Blackberry, 53
Black Bindweed, 28
Black Cherry, 54
Black Currant, 49, 50
Black-eyed Susan, 128
Black Haw, 111
Black Jack Oak, 22
Black Locust, 58
Black Maple, 70
Black Medick, 60
Black Mustard, 44
Black Oak, 23
Black Raspberry, 53
Black Snakeroot, 82
Black Spruce, 1
Black Swallow-wort, 90
Black Walnut, 21
Black Willow, 20
Bladder Campion, 34
Bladder Nut, 69
Bladder Nut Family, 69
Bladderwort, 106
Bladderwort Family, 105
Blazing Star, 13, 121
Blephilia, 96
Blite, 29
Bloodroot, 41
Bloody Dock, 26
Blue Ash, 88
Bluebell, 93, 94
Blueberry, 86
Blue Cohosh, 40
Blue-eyed Grass, 15
Blue-eyed Mary, 104
Blue Flag, 15
Blue Grass, 7
Blue Hearts, 104
Blue-joint, 5
Bluets, 108
Blue Violet, 76
Blueweed, 94
Boehmeria, 24
Bog Rosemary, 86
Boltonia, 131
Boneset, False, 122
Borage, 93
Borage Family, 93
Boraginaceae, 93
Borago, 93
Bowman's Root, 57
Box Elder, 70
Brasenia, 35
Brassica, 43, 44
Brauneria, 131
Braya, 47
Bristly Locust, 58
Bristly Sarsaparilla, 80
Brome-grass, 7
Bromus, 7
Broom-rape Family, 106
Buchnera, 104
Buckbean, 88
Buckeye, 70
Buckhorn, 107
Buckthorn, 71
Buckthorn Family, 71
Buckwheat, 27
Buckwheat, False, 28
Buckwheat Family, 25
Buffalo Berry, 77
Buffalo Bur, 100
Buffalo Clover, 61
Bugbane, 39
Bugle, 98
Bugle Weed, 95
Bug-seed, 28
Bulrush, 7
Bur Clover, 60
Bur Cucumber, 112
Burdock, 117
Bur Marigold, 124
Burnet, 57
Bur Oak, 23
Bur-reed, 2
Bur-reed Family, 2
Bush Clover, 61, 63
Bush Honeysuckle, 110
Butter-and-eggs, 102
Buttercup, 36, 37, 38
Butterfly Weed, 91
Butternut, 21
Butterwort, 105
Button Bush, 108
Cacalia, 122
Cactaceae, 77
Cactus Family, 77
Cakile, 45
Calamagrostis, 5
Calamint, 97
Calla, 9
Callirhoe, 73
Callitrichaceae, 68
Callitriche, 68
Calopogon, 16
Caltha, 36
Calypso, 17
Camassia, 14
Camelina, 42
Camomile, 130
Campanula, 112
Campanulaceae, 112
Campion, 33, 34
Canada Thistle, 118
Canada Violet, 76
Canadian Blue Grass, 7
Cancer-root, 106
Cannabis, 24
Caper Family, 47
Capparidaceae, 47
Caprifoliaceae, 109
Capsella, 46
Caraway, 83
Cardamine, 45, 47
Cardinal Flower, 113
Carduus, 118
Carex, 8
Carpet-weed, 31
Carpet-weed Family, 31
Carpinus, 21
Carrion-flower, 11
Carrot, Wild, 82
Carum, 83
Carya, 21
Caryophyllaceae, 31
Cashew Family, 68
Cassia, 60
Castalia, 35
Castanea, 22
Castilleja, 102
Catchfly, 33, 34
Catnip, 98
Cat-tail, 2
Cat-tail Family, 2
Caulophyllum, 40
Ceanothus, 71
Cedar, 1
Celandine, 41
Celandine Poppy, 41
Celastraceae, 69
Celastrus, 69
Celtis, 24
Cenchrus, 5
Centaurea, 121
Centaurium, 89
Centaury, 89
Cephalanthus, 108
Cerastium, 33
Ceratophyllaceae, 34
Ceratophyllum, 34
Cercis, 58
Chaerophyllum, 83
Chamaedaphne, 86
Chamaelirium, 13
Charlock, 44
Cheat, 7
Chelidonium, 41
Chelone, 104
Chenopodiaceae, 28
Chenopodium, 28, 29
Cherry, 54
Cherry, Ground, 101
Chervil, 83
Chestnut, 22
Chickweed, 32, 33
Chickweed, Mouse-ear, 33
Chicory, 115
Chimaphila, 85
Chiogenes, 85
Chives, Wild, 13
Chokeberry, 55
Choke Cherry, 54
Chrysanthemum, 121, 130, 131
Chrysosplenium, 50
Cichorium, 115
Cicuta, 82
Cimicifuga, 39
Cinquefoil, 52, 56, 57
Circaea, 78
Cirsium, 117, 118
Cistaceae, 74
Cladium, 8
Clammy Locust, 58
Clammy-weed, 47
Claytonia, 34
Clearweed, 24
Cleft Phlox, 92
Clematis, 35
Climbing Fumitory, 41
Climbing Rose, 52
Clintonia, 13
Clover, 61
Clover, Bush, 61, 63
Clover, Hop, 60
Clover, Prairie, 60
Clover, Sweet, 61
Cocklebur, 114
Cockle, Corn, 33
Coffee-tree, 58
Cohosh, Blue, 40
Colic-root, 13
Collinsia, 104
Collinsonia, 95
Coltsfoot, 122, 130
Columbine, 36
Comandra, 24
Comfrey, 93, 94
Commelina, 9
Commelinaceae, 9
Common Blue Violet, 76
Common Cat-tail, 2
Common Vetch,