Japanese Barberry
(Berberis thunbergii)
Twining Bartonia
(Bartonia paniculata subsp. paniculata)
Field Basil
(Clinopodium vulgare)
Southern Bayberry
(Morella cerifera)
Beach-heather
(Hudsonia tomentosa)
Pink Wild Bean
(Strophostyles umbellata)
Trailing Wild Bean
(Strophostyles helvola)
Trailing Wild Bean
(Strophostyles helvola)
Bear-corn
(Conopholis americana)
Tall White Beardtongue
(Penstemon digitalis)
Blunt-leaf Bedstraw
(Galium obtusum subsp. obtusum)
Catchweed Bedstraw
(Galium aparine)
Madder Bedstraw
(Galium mollugo)
Southern Forest Bedstraw
(Galium circaezans var. circaezans)
Yellow Spring Bedstraw
(Galium verum)
Basil Beebalm
(Monarda clinopodia)
Horsemint Beebalm
(Monarda punctata subsp. punctata)
Oswego-tea Beebalm
(Monarda didyma)
Wild Bergamot Beebalm
(Monarda fistulosa var. fistulosa)
American Beech
(Fagus grandifolia)
Beechdrops
(Epifagus virginiana)
Marsh Bellflower
(Campanula aparinoides)
Perfoliate Bellwort
(Uvularia perfoliata)
Sessile-leaf Bellwort
(Uvularia sessilifolia)
Wild Bergamot
(Monarda fistulosa var. fistulosa)
Field Bindweed
(Convolvulus arvensis)
Field Bindweed
(Convolvulus arvensis)
Hedge Bindweed
(Calystegia sepium var. sepium)
Two-leaf Bishop's-cap
(Mitella diphylla)
Mock Bishopweed
(Ptilimnium capillaceum)
Bulbous Bitter-cress
(Cardamine bulbosa)
Hairy Bittercress
(Cardamine hirsuta)
Narrowleaf Bittercress
(Cardamine impatiens)
Pennsylvania Bittercress
(Cardamine pensylvanica)
Pepper-root Bittercress
(Cardamine diphylla)
Touch-me-not Bittercress
(Cardamine impatiens)
Oriental Bittersweet
(Celastrus orbiculatus)
Black-eyed Susan
(Rudbeckia hirta var. pulcherrima)
Allegheny Blackberry
(Rubus allegheniensis)
Evergreen Blackberry
(Rubus laciniatus)
Three-leaf Blackberry
(Rubus parvifolius)
Yankee Blackberry
(Rubus flagellaris)
Smooth Blackhaw
(Viburnum prunifolium)
American Bladdernut
(Staphylea trifolia)
Large Swollen Bladderwort
(Utricularia inflata)
Purple Bladderwort
(Utricularia purpurea)
Fire-wheel Blanket-flower
(Gaillardia pulchella var. pulchella)
Dense Blazing Star
(Liatris spicata var. spicata)
Northern Blazingstar
(Liatris squarrosa var. squarrosa)
Spicate Blazingstar
(Liatris spicata var. spicata)
Bloodroot
(Sanguinaria canadensis)
Michaux's Blue-eyed-grass
(Sisyrinchium mucronatum)
Pointed Blue-eyed-grass
(Sisyrinchium angustifolium)
Pointed Blue-eyed-grass
(Sisyrinchium angustifolium)
Spanish Bluebells
(Hyacinthoides hispanica)
Virginia Bluebells
(Mertensia virginica)
Black Highbush Blueberry
(Vaccinium fuscatum)
Highbush Blueberry
(Vaccinium corymbosum)
Late Lowbush Blueberry
(Vaccinium angustifolium)
Lowbush Blueberry
(Vaccinium pallidum)
Sand Blueberry
(Vaccinium stamineum var. stamineum)
Forked Bluecurls
(Trichostema dichotomum)
Bluet
(Houstonia caerulea)
Aster-like Boltonia
(Boltonia asteroides var. glastifolia)
Boneset
(Eupatorium perfoliatum)
Blue Boneset
(Conoclinium coelestinum)
Bouncing-bet
(Saponaria officinalis)
Dutchman's Breeches
(Dicentra cucullaria)
One-flowered Broomrape
(Orobanche uniflora)
Buckwheat
(Fagopyrum esculentum)
Crested Climbing Buckwheat.
(Fallopia scandens)
American Bugleweed
(Lycopus americanus)
Carpet Bugleweed
(Ajuga reptans)
Northern Bugleweed
(Lycopus uniflorus)
Taperleaf Bugleweed
(Lycopus rubellus)
Virginia Bugleweed
(Lycopus virginicus)
Leafy Bulrush
(Scirpus polyphyllus)
Softstem Bulrush
(Schoenoplectus tabernaemontani)
Woolgrass Bulrush
(Scirpus cyperinus)
One-seed Bur-cucumber
(Sicyos angulatus)
One-seed Bur-cucumber
(Sicyos angulatus)
American Bur-reed
(Sparganium americanum)
Great Burdock
(Arctium lappa)
Lesser Burdock
(Arctium minus)
Burning Bush
(Euonymus alatus)
High-tide Bush
(Baccharis halimifolia)
High-tide Bush
(Baccharis halimifolia)
High-tide Bush
(Baccharis halimifolia)
Chinese Bushclover
(Lespedeza cuneata)
Roundhead Bushclover
(Lespedeza capitata)
Shrubby Bushclover
(Lespedeza bicolor)
Slender Bushclover
(Lespedeza virginica)
Trailing Bushclover
(Lespedeza procumbens)
Butter-and-eggs
(Linaria vulgaris)
Bulbous Buttercup
(Ranunculus bulbosus)
Creeping Buttercup
(Ranunculus repens)
Cursed Buttercup
(Ranunculus sceleratus var. sceleratus)
Hispid Buttercup
(Ranunculus caricetorum)
Hooked Buttercup
(Ranunculus recurvatus var. recurvatus)
Kidneyleaf Buttercup
(Ranunculus abortivus)
Butterfly-bush
(Buddleja davidii)
Maryland Butterfly-pea
(Clitoria mariana var. mariana)
Butternut
(Juglans cinerea)
Buttonbush
(Cephalanthus occidentalis)
Poorly-drained Buttonweed
(Diodia virginiana)
Well-drained Buttonweed
(Diodella teres)
Delaware Wildflowers
