Balsam Apple (see Cucumber, Wild/ Balsam Apple) Bamboo, Japanese (see Knotweed, Japanese/ Japanese Bamboo) Barberry, Japanese Berberis thunbergii Barberry Basil Satureja vulgaris Mint Basswood, American (see Linden, American) Basswood, white Tilia heterophylla Linden Bean, Wild Phaseolus polystachios Pea Bear's head tooth fungus (see Hedgehog coral) Beardtongue, Eastern (see Beardtongue, Hairy/ Eastern Beardtongue) Beardtongue, Foxglove Penstemon digitalis Snapdragon (Figwort) Beardtongue, Hairy/ Eastern Beardtongue Penstemon hirsutus Snapdragon (Figwort) Bedstraw, Fragrant/ Sweet-scented Bedstraw Galium triflorum Bedstraw (Madder) Bedstraw, Rough Gallium asprellum Bedstraw (Madder) Bedstraw, shining Galium concinnum Bedstraw (Madder) Bedstraw, Sweet-scented (see Bedstraw, Fragrant/ Sweet-scented Bedstraw) Bee tree (see Basswood, white) Bee-balm/ Oswego tea Monarda didyma Mint Bee-Tree (see Linden, American) Beech, American Fagus grandifolia Beech Beech, Blue (see Ironwood) Beech, Water (see Ironwood) Beechdrops Epifagus virginianum Broomrape Beggar's Lice (see Stickseed/ Beggar's-Lice) Beggar-ticks, Devil's/ Sticktights Bidens frondosa Miscellaneous Beggar-ticks, Leafy-bracted Bidens comosa Miscellaneous Beggar-ticks, Swamp Bidens connata Miscellaneous Bellflower, Tall Campanula americana Bluebell Bellwort, Large-flowered/ Big Merrybells Uvularia grandiflora Lily Bellwort, Perfoliate Uvularia perfoliata Lily Bellwort, Sessile (see Oats, Wild/ Sessile Bellwort/ Little Merrybells) Benjamin Bush (see Spicebush, common) Bergamot, Wild Monarda fistulosa Mint Biindweed, small (see Bindweed, field) Bindweed, field Convolvulus arvensis Morning Glory Bindweed, Hedge/ Wild Morning Glory Convolvulus sepium Morning Glory Bindweed, Low (see Bindweed, Upright/ Low Bindweed) Bindweed, Upright/ Low Bindweed Convolvulus spithamaeus Morning Glory Birch, Black Betula lenta Birch Birch, Cherry (see Birch, Black) Birch, European Weeping (see Birch, European White) Birch, European White Betula pendula Birch Birch, gray Betula populifolia Birch Birch, red (see Birch, river) Birch, river Betula nigra Birch Birch, Silver (see Birch, European White) Bird's-eye (see Speedwell, Bird's Eye) Bishop's Cap (see Miterwort/ Bishop's Cap) Bittercress, Pennsylvania Cardamine pensylvanica Mustard Bitternut (see Hickory, Bitternut) Bittersweet, American/ Climbing bittersweet Celastrus scandens Staff-Tree Bittersweet, Asiatic Celastrus orbiculatus Staff-Tree Bittersweet, Climbing (see Bittersweet, American/ Climbing bittersweet) Black-Eyed Susan Rudbeckia hirta Sunflower-Like Blackberry Rubus allegheniensis Rose Blackhaw (see Nannyberry) Bladdernut, American Staphylea trifola Bladdernut Blazing-Star, Dense/ Gay Feather Liatris spicata Miscellaneous Bleeding-heart, Wild Dicentra eximia Poppy Bloodroot Sanguinaria canadensis Poppy Blue eyed grass, stout Sisyrinchum angustifolium Iris Blue-eyed Mary Collinsia verna Snapdragon (Figwort) Bluebells, Virginia/ Virginia Cowslip/ Mertensia Mertensia virginica Forget-Me-Not/Borage Blueberry, Canada (see Blueberry, Velvet leaf/ Canada Blueberry) Blueberry, Early Low (see Blueberry, Low-bush) Blueberry, Low Sweet (see Blueberry, Low-bush) Blueberry, Low-bush Vaccinium angustifolium Heath Blueberry, Velvet leaf/ Canada Blueberry Vaccinium myrtilloides Heath Bluets/ Quaker-ladies Houstonia caerulea Bedstraw (Madder) Blueweed (see Bugloss, Viper's/ Blueweed) Boneset, Blue (see Mistflower/ Blue Boneset) Boneset, White (see Thoroughwort, White) Boneset/ Thoroughwort Eupatorium perfoliatum Joe-Pye-Weed-Like Borage Borago officinalis Forget-Me-Not/Borage Bouncing Bet/ Soapwort Saponaria officinalis Pink Bowman's Root/ Indian Physic Gillenia trifoliata Rose Boxelder Acer negundo Maple Bracken Pteridium latiusculum Fern Bracket, lacquered Ganoderma resinaceum Fungus British soldiers Cladonia cristatella Lichen Brown-eyed Susan Rudbeckia triloba Composite Buckeye (see Horsechestnut) Buckeye, Fetid (see Buckeye, Ohio) Buckeye, Ohio Aesculus glabra Horsechestnut Buckeye, Sweet (see Buckeye, Yellow) Buckeye, Yellow Aesculus octandra Horsechestnut Buckthorn, Alder (see Buckthorn, Glossy) Buckthorn, Common Rhamnus cathartica Buckthorn Buckthorn, European (see Buckthorn, Glossy) Buckthorn, Glossy Rhamnus frangula Buckthorn Buckwheat Fagopyrum sagittatum Buckwheat Buckwheat, Climbing False Polygonum scandens Buckwheat Bugbane (see Cohosh, Black/ Bugbane/ Black Snakeroot) Bugle Ajuga reptans Mint Bugle, Erect Ajuga genevensis Mint Bugleweed, American (see Water-Horehound, Cut-Leaved/ American Bugleweed) Bugleweed, Virginia Lycopus virginicus Mint Bugloss, Small Lycopsis arvensis Forget-Me-Not/Borage Bugloss, Viper's/ Blueweed Echium vulgare Forget-Me-Not/Borage Bulrush, Dark Green (see Bulrush, Small/ Dark Green Bulrush) Bulrush, Great Scirpus validus Sedge Bulrush, Small/ Dark Green Bulrush Scirpus atrovirens Sedge Bur Marigold Bidens cernua Dandelion-Like Bur-Reed Sparganium Bur-Reed Burdock, Common Arcticum minus Thistle-Like Burdock, Great Arctium lappa Thistle-Like Butter-and-eggs/ Common Toadflax Linaria vulgaris Snapdragon (Figwort) Buttercup, Bulbous Ranunculus bulbosus Buttercup Buttercup, Common/ Tall Buttercup/ Meadow Buttercup Ranunculus acris Buttercup Buttercup, Creeping Ranunculus repens Buttercup Buttercup, early Ranunculus fascicularis Buttercup Buttercup, Hispid Ranunculus hispidus Buttercup Buttercup, Hooked Ranunculus recurvatus Buttercup Buttercup, Kidneyleaf Ranunculus abortivus Buttercup Buttercup, Meadow (see Buttercup, Common/ Tall Buttercup/ Meadow Buttercup) Buttercup, Swamp Ranunculus septentrionalis Buttercup Buttercup, Tall (see Buttercup, Common/ Tall Buttercup/ Meadow Buttercup) Buttercup, tufted (see Buttercup, early) Butterfly-weed/ Pleurisy Root Asclepias tuberosa Milkweed Butternut Juglans cineria Walnut Buttonwood (see Sycamore, American)

Barberry Barberry, Japanese Berberis thunbergii Barberry Cohosh, Blue Caulophyllum thalictroides Barberry May-Apple/ Mandrake Podophyllum peltatum Bedstraw (Madder) Bedstraw, Fragrant/ Sweet-scented Bedstraw Galium triflorum Bedstraw (Madder) Bedstraw, Rough Gallium asprellum Bedstraw (Madder) Bedstraw, shining Galium concinnum Bedstraw (Madder) Bluets/ Quaker-ladies Houstonia caerulea Bedstraw (Madder) Cleavers/ Goosegrass Galium apartine Bedstraw (Madder) Houstonia, Narrow-Leaved Houstonia tenuifolia Bedstraw (Madder) Licorice, White Wild Galium circaezans Bedstraw (Madder) Madder, Blue Field Sherardia arvensis Bedstraw (Madder) Partridge-Berry/ Two-Eyed Berry Mitchella repens Bedstraw (Madder) Woodruff Galium odoratum Beech Beech, American Fagus grandifolia Beech Chestnut, American Castanea dentata Beech Chestnut, Chinese Castanea mollissima Beech Oak, Bear Beech Oak, Black Quercus velutina Beech Oak, Chestnut Quercus prinus Beech Oak, Pin Quercus palustris Beech Oak, Red Quercus rubra Beech Oak, Scrub Quercus ilicifolia Beech Oak, White Quercus alba Beech Oak, Willow Quercus phellos Bignonia Catalpa, Northern Catalpa speciosa Bignonia Trumpet-creeper Campsis radicans Birch Alder, Speckled Alnus rugosa Birch Birch, Black Betula lenta Birch Birch, European White Betula pendula Birch Birch, gray Betula populifolia Birch Birch, red Birch Birch, river Betula nigra Birch Hazelnut, American Corylus americana Birch Hop-Hornbeam Ostrya virginiana Birch Ironwood Carpinus caroliniana Birthwort Dutchman's Pipe Aristolochia durior Birthwort Ginger, Wild Asarum canadense Bladdernut Bladdernut, American Staphylea trifola Bluebell Bellflower, Tall Campanula americana Bluebell Venus looking glass Specularia perfoliata Box Pachysandra Pachysandra terminalis Broomrape Beechdrops Epifagus virginianum Broomrape Squawroot Donofolis americana Buckthorn Buckthorn, Alder Buckthorn Buckthorn, Common Rhamnus cathartica Buckthorn Buckthorn, Glossy Rhamnus frangula Buckwheat Buckwheat Fagopyrum sagittatum Buckwheat Buckwheat, Climbing False Polygonum scandens Buckwheat Dock, Broad-Leaved Buckwheat Dock, Curly Rumex crispus Buckwheat Dock, Pale Rumex altissimus Buckwheat Dock, Patience Rumex patientia Buckwheat Knotweed Virginia/ Jumpseed Tovara virginianum Buckwheat Knotweed, Erect Polygonum erectum Buckwheat Knotweed, Japanese/ Japanese Bamboo Polygonum cuspidatum Buckwheat Knotweed, Prostrate/ Dooryard Weed Polygonum aviculare Buckwheat Lady's-Thumb/ Redleg Polygonum persicaria Buckwheat Sachalin Polygonum sachalinense Buckwheat Smartweed, Long-Bristled Polygonum cespitosum Buckwheat Smartweed, Pale/ Pale Polygonum Polygonum lapathifolium Buckwheat Smartweed, Pennsylvania Polygonum pensylvanicum Buckwheat Sorrel, Sheep/ Common Sorrel Rumex acetosella Buckwheat Tearthumb, Arrow-Leaved Polygonum sagittatum Buckwheat Tearthumb, Halberd-Leaved Polygonum arifolium Buckwheat Water Pepper, Common Smartweed Polygonum hydropiper Buckwheat Water-Pepper, Mild Polygonum hydropiperoides Bur-Reed Bur-Reed Sparganium Buttercup Aconite, Winter Eranthis hyemalis Buttercup Anemone, Wood Anemone quinquefolia Buttercup Buttercup, Bulbous Ranunculus bulbosus Buttercup Buttercup, Common/ Tall Buttercup/ Meadow Buttercup Ranunculus acris Buttercup Buttercup, Creeping Ranunculus repens Buttercup Buttercup, early Ranunculus fascicularis Buttercup Buttercup, Hispid Ranunculus hispidus Buttercup Buttercup, Hooked Ranunculus recurvatus Buttercup Buttercup, Kidneyleaf Ranunculus abortivus Buttercup Buttercup, Swamp Ranunculus septentrionalis Buttercup Buttercup, tufted Buttercup Cohosh, Black/ Bugbane/ Black Snakeroot Cimicifuga racemosa Buttercup Columbine, Garden Aquilega vulgaris Buttercup Columbine, Wild/ Eastern Columbine Aquilegia canadensis Buttercup Crowfoot, Cursed Ranunculus scleratus Buttercup Crowfoot, early Buttercup Goldenseal Hydrastis canadensis Buttercup Hepatica, Sharp-Lobed Hepatica acutiloba Buttercup Larkspur, Dwarf/ Spring Larkspur Delphinium tricorne Buttercup Larkspur, rocket Delphinium ajacis Buttercup Meadow-rue, Early Thalictrum dioicum Buttercup Meadow-Rue, Tall Thalictrum polygamum Buttercup Rue-Anemone/ Windflower Anemonella thalictroides Buttercup Thimbleweed/ Tall Anemone Anemone virginiana Buttercup Virgin's Bower/ Old Man's Beard Clematis virginiana