Native & Naturalized Plants of the Carolinas and Georgia

Listed below are 3526 taxa included on NameThatPlant.net as of 8/22/17, using nomenclature preferred by the online PLANTS National Database. A plus sign indicates that the PLANTS National Database further divides that species into varieties or subspecies. Click the scientific name to link to information and (maybe) pictures!

 

Abelia Xgrandiflora [chinensis X uniflora] — Abelia
Abelmoschus esculentus — Okra, Gumbo
Abies alba — European Fir, Silver Fir
Abies balsamea — Balsam Fir, Northern Balsam, Canada Balsam
Abies fraseri — Fraser Fir, She Balsam, Southern Balsam
Abutilon theophrasti — Velvetleaf, Indian Mallow, Butterprint
Acalypha gracilens — Slender Three-seeded Mercury, Slender Copperleaf, Short-stalked Copperleaf
Acalypha ostryifolia — Rough-pod Copperleaf, Hophornbeam Copperleaf
Acalypha rhomboidea — Common Three-seeded Mercury, Rhombic Copperleaf
Acalypha virginica — Three-seeded Mercury, Virginia Copperleaf, Short-stalked Copperleaf
Acer barbatum — Southern Sugar Maple, Florida Maple
Acer buergerianum — Trident Maple
Acer ginnala — Amur Maple
Acer leucoderme — Chalk Maple, Small Chalk Maple, White-bark Maple
Acer negundo var. negundo — Eastern Box Elder, Ash-leaved Maple
Acer nigrum — Black Maple
Acer pensylvanicum — Striped Maple, Moosewood
Acer platanoides — Norway Maple
Acer pseudoplatanus — Sycamore Maple, Planetree Maple
Acer rubrum var. rubrum — Eastern Red Maple
Acer rubrum var. trilobum — Carolina Red Maple, Trident Red Maple
Acer saccharinum — Silver Maple, Soft Maple
Acer saccharum var. saccharum — Sugar Maple, Hard Maple, Sugar Tree
Acer spicatum — Mountain Maple
Achillea millefolium var. millefolium — Yarrow, Thousandleaf
Achillea millefolium var. occidentalis — American Yarrow, American Thousandleaf
Achyranthes japonica var. hachijoensis — Japanese Chaff-flower
Acmella oppositifolia var. repens — Spilanthes, Creeping Spotflower
Aconitum reclinatum — Trailing Wolfsbane, White Monkshood, White Aconite
Aconitum uncinatum + — Appalachian Blue Monkshood, Eastern Blue Monkshood
Acorus americanus — Sweetflag, American Calamus
Acorus calamus — Sweetflag, European Calamus
Acroptilon repens — Russian Knapweed
Actaea pachypoda — Doll's-eyes, White Baneberry, White Cohosh
Actaea podocarpa — Mountain Black Cohosh, American Cohosh, Late Black Cohosh
Actaea racemosa + — Common Black Cohosh, Early Black Cohosh, Black Snakeroot
Adiantum capillus-veneris — Southern Maidenhair Fern, Venus-hair Fern
Adiantum pedatum — Northern Maidenhair Fern
Adlumia fungosa — Climbing Fumitory, Allegheny Vine, Cliff-Harlequin
Aegopodium podagraria — Goutweed, Bishop's Weed
Aesculus flava — Yellow Buckeye
Aesculus glabra var. glabra — Ohio Buckeye, Fetid Buckeye
Aesculus hippocastanum — Horsechestnut
Aesculus parviflora — Bottlebrush Buckeye
Aesculus pavia var. pavia — Red Buckeye
Aesculus sylvatica — Painted Buckeye
Agalinis aphylla — Scale-leaf Gerardia, Scale-leaf Agalinis
Agalinis fasciculata — Gerardia, beach false foxglove
Agalinis fasciculata — Gerardia, beach false foxglove
Agalinis linifolia — Gerardia, flaxleaf false foxglove
Agalinis obtusifolia — Ten-lobe False Foxglove, Gerardia
Agalinis purpurea — Purple Gerardia, purple false foxglove
Agalinis setacea — Sandhills Gerardia, Threadleaf Gerardia, threadleaf false foxglove
Agalinis tenuifolia var. tenuifolia — Slender Gerardia, Thin-leaved Agalinis, slenderleaf false foxglove
Agarista populifolia — Tall Fetterbush, Florida Leucothoe, Agarista, Pipe-plant
Agastache nepetoides — Yellow Giant-hyssop
Agastache scrophulariifolia — Purple Giant-hyssop
Ageratina altissima var. altissima — Common White Snakeroot, Common Milk-poison
Ageratina altissima var. roanensis — Appalachian White Snakeroot, Appalachian Milk-poison
Ageratina aromatica var. aromatica — Small-leaved White Snakeroot, Aromatic Snakeroot, Wild-hoarhound, Small White Snakeroot
Ageratum houstonianum — Ageratum
Agrimonia gryposepala — Common Agrimony
Agrimonia incisa — Pineland Agrimony
Agrimonia microcarpa — Low Agrimony, Small-fruited Agrimony
Agrimonia parviflora — Southern Agrimony, Small-flowered Agrimony, Harvestlice
Agrimonia pubescens — Downy Agrimony
Agrimonia rostellata — Woodland Agrimony
Agrimonia striata — Roadside Agrimony
Agrostemma githago — Corncockle, Purple Cockle, Corn-campion
Agrostis capillaris — Rhode Island Bentgrass, Colonial Bentgrass, Browntop
Agrostis elliottiana — Elliott's Bentgrass, Southern Bentgrass
Agrostis gigantea — Black Bentgrass, Redtop
Agrostis perennans — Autumn Bentgrass, Upland Bent
Agrostis perennans — Coastal Bog Bentgrass
Agrostis stolonifera — Creeping Bentgrass
Ailanthus altissima — Ailanthus, Tree-of-heaven
Aira elegans — Elegant Hairgrass
Ajuga reptans — Carpet Bugle, Bugle-weed
Akebia quinata — Five-leaf Akebia, Chocolate-vine
Albizia julibrissin — Mimosa, Silktree
Alcea rosea — Hollyhock
Aldrovanda vesiculosa — Waterwheel-plant
Aletris aurea — Golden Colic-root
Aletris farinosa — Northern White Colic-root, White-star Grass, Stargrass, Mealy Colicroot
Aletris lutea — Yellow Colic-root
Aletris obovata — Southern White Colic-root
Alisma subcordatum — Southern Water-plantain
Alliaria petiolata — Garlic Mustard, Hedge Garlic
Allium ampeloprasum — Wild Leek, Yorktown Onion
Allium canadense var. canadense — Wild Onion
Allium canadense var. mobilense — Wild Garlic, Wild Onion
Allium cernuum var. cernuum — Nodding Onion, Nodding Wild Onion
Allium sativum — Garlic
Allium speculae — Flatrock Onion
Allium stellatum — Glade Onion, Prairie Onion
Allium tricoccum — Ramps, Wild Leek, Rampscallions, Red Ramps
Allium vineale ssp. vineale — Field Garlic, Wild Onion, Crow Garlic, Onion Grass
Alnus glutinosa — Black Alder, European Alder
Alnus incana ssp. rugosa — Speckled Alder
Alnus maritima — Georgia Alder
Alnus serrulata — Tag Alder, Hazel Alder, Smooth Alder
Alnus viridis ssp. crispa — Green Alder, Mountain Alder
Alopecurus carolinianus — Carolina Foxtail Grass
Alternanthera philoxeroides — Alligator-weed
Alternanthera sessilis — Sessile Joyweed
Alysicarpus vaginalis — Alyce Clover
Amaranthus australis — Southern Water-hemp, Careless
Amaranthus hybridus — Smooth Pigweed, Smooth Amaranth, Green Amaranth, Hybrid Amaranth
Amaranthus polygonoides — Tropical Amaranth, Smartweed Amaranth
Amaranthus pumilus — Seabeach Amaranth, Dwarf Amaranth
Amaranthus spinosus — Spiny Amaranth
Ambrosia artemisiifolia + — Annual Ragweed, Common Ragweed
Ambrosia trifida var. trifida — Giant Ragweed, Great Ragweed
Amelanchier arborea var. arborea — Downy Serviceberry, Sarvisberry
Amelanchier canadensis — Eastern Serviceberry, Canadian Serviceberry
Amelanchier laevis — Allegheny Serviceberry, Smooth Serviceberry
Amelanchier obovalis — Coastal Plain Serviceberry, Pocosin Shadbush
Amelanchier sanguinea var. sanguinea — Roundleaf Serviceberry, New England Serviceberry
Amelanchier stolonifera — Running Serviceberry, Dwarf Serviceberry
Amianthium muscitoxicum — Fly-poison
Ammannia coccinea — Red Toothcup, valley redstem
Amorpha fruticosa — False Indigo, Tall Indigo-bush
Amorpha georgiana var. confusa — Savanna Indigo-bush
Amorpha georgiana var. georgiana — Georgia Indigo-bush
Amorpha glabra — Mountain Indigo-bush, Appalachian Indigo-bush, Mountain Indigo, Mountain False Indigo
Amorpha herbacea var. herbacea — Leadplant, Dwarf Indigo-bush
Amorpha schwerinii — Piedmont Indigo-bush
Ampelaster carolinianus — Climbing Aster
Ampelopsis arborea — Peppervine
Ampelopsis brevipedunculata — Porcelain-berry, Amur Peppervine
Ampelopsis cordata — American Ampelopsis, Raccoon-grape, False-grape
Amphianthus pusillus — Pool-sprite, Snorkelwort, Little Amphianthus
Amphicarpaea bracteata + — American Hog-peanut
Amphicarpum purshii — Pinebarrens Peanut-grass, Pinebarrens Goober-grass, New Jersey Goober-grass
Amsonia ciliata var. ciliata — Sandhills Bluestar, Fringed Bluestar
Amsonia illustris — Swamp Bluestar, Ozark Bluestar
Amsonia ludoviciana — Louisiana Bluestar
Amsonia rigida — Stiff Bluestar, Pond Bluestar, Marsh Bluestar
Amsonia tabernaemontana var. tabernaemontana — Wideleaf Bluestar, Blue Dogbane
Anagallis minima — Chaffweed, False-pimpernel
Anaphalis margaritacea — Pearly Everlasting
Andromeda polifolia var. glaucophylla — Bog-rosemary
Andropogon capillipes — Dryland White Bluestem, Chalky Bluestem
Andropogon floridanus — Florida Bluestem
Andropogon gerardii — Big Bluestem, Turkeyfoot
Andropogon glaucopsis — Big Chalky Bluestem, Coastal Bluestem
Andropogon glomeratus var. glomeratus — Common Bushy Bluestem, Bushy Beardgrass, Bog Broomsedge, Clustered Bluestem
Andropogon glomeratus var. hirsutior — Savanna Bushy Bluestem
Andropogon glomeratus var. pumilus — Maritime Bushy Bluestem, Bushy Beardgrass
Andropogon gyrans var. gyrans — Elliott's Bluestem
Andropogon gyrans var. stenophyllus — Narrow-leaved Bluestem
Andropogon longiberbis — Longbeard Bluestem
Andropogon mohrii — Mohr's Bluestem, Tawny Bluestem, Bog Bluestem
Andropogon ternarius var. ternarius — Splitbeard Bluestem, Silvery Bluestem
Andropogon virginicus var. decipiens — Deceptive Bluestem, Deceptive Broomsedge
Andropogon virginicus var. virginicus — Broomsedge, Broomsedge Bluestem, Old-field Broomstraw, "Sedge Grass"
Anemone berlandieri — Eastern Prairie Anemone, Ten-petal Anemone, Southern Thimbleweed
Anemone canadensis — Canada Anemone
Anemone caroliniana — Carolina Anemone, Prairie Anemone
Anemone lancifolia — Mountain Anemone, Lanceleaf Anemone
Anemone quinquefolia var. quinquefolia — Wood Anemone
Anemone virginiana var. virginiana — Thimbleweed, Tall Anemone
Angelica atropurpurea — Purple Angelica
Angelica triquinata — Mountain Angelica, Filmy Angelica, Appalachian Angelica
Angelica venenosa — Hairy Angelica, Downy Angelica, Deadly Angelica
Antennaria howellii ssp. neodioica — Pussytoes
Antennaria neglecta — Field Pussytoes
Antennaria parlinii ssp. fallax — Big-head Pussytoes
Antennaria parlinii ssp. parlinii — Parlin's Pussytoes
Antennaria plantaginifolia — Plantain Pussytoes, Plantain-leaved Pussytoes
Antennaria solitaria — Solitary Pussytoes, Southern Single-head Pussytoes
Anthemis arvensis — Corn Chamomile, Field Chamomile
Anthemis cotula — Stinking Chamomile, Stinking Mayweed, Dog-fennel
Anthoxanthum odoratum ssp. odoratum — Sweet Vernal Grass
Anthriscus caucalis — Bur Chervil, Bur-parsley
Anthriscus cerefolium — Garden Chervil
Anthriscus sylvestris — Cow Chervil, Wild Chervil, Cow-parsley
Antigonon leptopus — Love-chain, Queen's-jewels, Confederate-vine, Corallita
Apios americana — Common Groundnut
Aplectrum hyemale — Puttyroot, Adam-and-Eve
Apocynum androsaemifolium — Spreading Dogbane
Apocynum cannabinum — Indian-hemp, Hemp Dogbane, Marion's Weed
Apocynum Xfloribundum [androsaemifolium X cannabinum] — Dogbane
Aquilegia canadensis — Eastern Columbine, Canada Columbine
Arabidopsis thaliana — Mouse-ear Cress
Arabis canadensis — Sicklepod, Canada Rockcress
Arabis georgiana — Georgia Rockcress
Arabis glabra — Tower Mustard
Arabis laevigata var. burkii — Burk's Smooth Rockcress
Arabis laevigata var. laevigata — Common Smooth Rockcress
Arabis lyrata — Lyreleaf Rockcress, Dwarf Rockcress
Arabis missouriensis — Missouri Rockcress
Arabis patens — Spreading Rockcress
Arachis glabrata — Grassnut
Arachis hypogaea — Peanut
Aralia hispida — Bristly Sarsaparilla
Aralia nudicaulis — Wild Sarsaparilla
Aralia racemosa ssp. racemosa — Spikenard
Aralia spinosa — Devil's Walkingstick, Hercules-club, Prickly Aralia, Prickly-ash
Arctium lappa — Great Burdock
Arctium minus — Common Burdock
Arctostaphylos uva-ursi — Bearberry, Kinnikinick
Ardisia crenata — Coral Ardisia, Hen's Eyes, Coralberry, Marlberry
Ardisia japonica — Japanese Ardisia, Marlberry
Arenaria lanuginosa ssp. lanuginosa var. lanuginosa — Spreading Sandwort
Arenaria serpyllifolia — Large Thyme-leaved Sandwort
Arenaria serpyllifolia — Small Thyme-leaved Sandwort, Slender Sandwort
Arethusa bulbosa — Bog-rose, Dragon's-mouth, Arethusa
Argemone albiflora ssp. albiflora — White Prickly-poppy, Carolina Poppy
Argemone mexicana — Mexican Prickly-poppy, Mexican Poppy
Arisaema dracontium — Green Dragon
Arisaema triphyllum ssp. pusillum — Small Jack in the Pulpit
Arisaema triphyllum ssp. quinatum — Southern Jack in the Pulpit, Preacher John, Prester-John
Arisaema triphyllum ssp. stewardsonii — Bog Jack in the Pulpit
Arisaema triphyllum ssp. triphyllum — Common Jack in the Pulpit , Indian Turnip
Arisaema triphyllum ssp. triphyllum — Florida Jack in the Pulpit
Aristida beyrichiana — Southern Wiregrass
Aristida condensata — Big Three-awn
Aristida longespica var. longespica — Southeastern Slim-spike Three-awn
Aristida purpurascens var. purpurascens — Arrowfeather, Arrowfeather Three-awn
Aristida spiciformis — Bottlebrush Three-awn, Spike Three-awn
Aristida stricta — Carolina Wiregrass, Pineland Three-awn
Aristida tuberculosa — Seabeach Needlegrass, Sandhills Three-Awn
Aristolochia macrophylla — Dutchman's Pipe, Pipevine
Aristolochia serpentaria — Turpentine-root, Virginia Snakeroot, Serpent Birthwort
Aristolochia tomentosa — Woolly Pipevine, Woolly Dutchman's Pipe
Arnica acaulis — Leopard's-bane, Southeastern Arnica
Arnoglossum atriplicifolium — Pale Indian Plantain
Arnoglossum diversifolium — Variable-leaf Indian Plantain
Arnoglossum ovatum — Savanna Indian Plantain
Arnoglossum ovatum — Broadleaf Indian Plantain, Ovateleaf Indian Plantain, Ovateleaf Cacalia
Arnoglossum reniforme — Great Indian Plantain
Artemisia ludoviciana ssp. ludoviciana — White Sage, Prairie Sage
Artemisia vulgaris var. vulgaris — Mugwort, Felon Herb
Arthraxon hispidus — Basket Grass, Small Carpgrass
Aruncus dioicus var. dioicus — Eastern Goatsbeard, Bride's Feathers
Arundinaria appalachiana — Hill Cane
Arundinaria gigantea — River Cane, Giant Cane
Arundinaria tecta — Switch Cane, Small Cane
Arundo donax — Giant Reed
Asarum canadense — Common Wild Ginger
Asarum canadense — Wild Ginger
Asarum canadense — Wild Ginger
Asclepias amplexicaulis — Clasping Milkweed, Blunt-leaved Milkweed, Wavyleaf Milkweed
Asclepias cinerea — Carolina Milkweed, Walter's Milkweed
Asclepias connivens — Largeflower Milkweed
Asclepias exaltata — Poke Milkweed, Tall Milkweed
Asclepias hirtella — Barrens Milkweed
Asclepias humistrata — Fleshy Milkweed, Pinewoods Milkweed
Asclepias incarnata ssp. pulchra — Eastern Swamp Milkweed
Asclepias lanceolata — Few-flower Milkweed, Red Milkweed
Asclepias longifolia — Longleaf Milkweed, Savanna Milkweed
Asclepias michauxii — Michaux's Milkweed
Asclepias obovata — Pineland Milkweed, Green Milkweed
Asclepias pedicellata — Stalked Milkweed, Savanna Milkweed
Asclepias perennis — Smoothseed Milkweed, Swampforest Milkweed, Swamp Milkweed
Asclepias purpurascens — Purple Milkweed
Asclepias quadrifolia — Four-leaved Milkweed
Asclepias rubra — Purple Savanna Milkweed, Red Milkweed, Bog Milkweed
Asclepias syriaca — Common Milkweed
Asclepias tuberosa ssp. tuberosa — Butterfly Milkweed, Common Butterflyweed, Pleurisy Root, Wind Root
Asclepias variegata — White Milkweed
Asclepias verticillata — Whorled Milkweed, Narrowleaf Milkweed
Asclepias viridiflora — Green Milkweed
Asclepias viridis — Green Antelope-horn, Spider Milkweed, Green Milkweed
Asimina incana — Flag Pawpaw, Polecat Bush, Woolly Pawpaw
Asimina parviflora — Small-flowered Pawpaw, Small-fruited Pawpaw, Dwarf Pawpaw
Asimina reticulata — Netleaf Pawpaw
Asimina triloba — Common Pawpaw, Indian-banana
Asparagus aethiopicus — SprengerŐs Asparagus-fern, Emerald-fern
Asparagus officinalis — Garden Asparagus, Sparrowgrass
Asplenium monanthes — Single-sorus Spleenwort
Asplenium montanum — Mountain Spleenwort
Asplenium pinnatifidum — Lobed Spleenwort
Asplenium platyneuron + — Ebony Spleenwort
Asplenium resiliens — Blackstem Spleenwort
Asplenium rhizophyllum — Walking Fern
Asplenium trichomanes ssp. trichomanes — Maidenhair Spleenwort
Asplenium Xheteroresiliens [heterochroum X resiliens] — Marl Spleenwort, Carolina Spleenwort, Wagner's Spleenwort, Morzenti's Spleenwort
Aster tataricus — Tartarian Aster
Astilbe biternata — Appalachian False Goatsbeard
Astragalus canadensis var. canadensis — Canada Milkvetch
Astragalus michauxii — Sandhills Milkvetch, Michaux's Milkvetch
Astranthium integrifolium ssp. integrifolium — eastern western-daisy
Athyrium filix-femina ssp. angustum — Northern Lady Fern
Athyrium filix-femina ssp. asplenioides — Southern Lady Fern
Atriplex prostrata — Thinleaf Orach, Fat-hen
Aucuba japonica — Aucuba, Japanese-laurel, Spotted-laurel
Aureolaria flava var. flava — Smooth False-foxglove, Eastern Smooth Oak-leach
Aureolaria laevigata — Appalachian Oak-leach, Smooth False-foxglove
Aureolaria patula — Cumberland Oak-leach, Spreading Yellow Foxglove
Aureolaria pectinata — Southern Oak-leach, Sticky False-foxglove
Aureolaria pedicularia + — Fern-leaf False-foxglove, Annual Oak-leach
Aureolaria virginica — Downy False-foxglove, Downy Oak-leach, Virginia Oak-leach
Avena sativa — Domestic Oats
Axonopus fissifolius — Common Carpetgrass
Axonopus furcatus — Big Carpetgrass
Azolla caroliniana — Eastern Mosquito Fern, Water Fern
Azolla filiculoides — Large Mosquito Fern
Baccharis angustifolia — False-willow, False Saltwater Willow
Baccharis glomeruliflora — Groundsel Tree
Baccharis halimifolia — Silverling, Groundsel Tree, Consumption Weed, Sea Myrtle
Bacopa caroliniana — Blue Water-hyssop, Sweet Water-hyssop, Carolina Water-hyssop, Lemon Bacopa
Bacopa innominata — Tropical Water-hyssop
Balduina angustifolia — coastal plain honeycomb-head
Balduina atropurpurea — Purple Balduina, Purple-disk Honeycomb-head, Bog Honeycomb-head, Purple Honeycomb-head
Balduina uniflora — Savanna Honeycomb-head, Yellow Balduina
Bambusa vulgaris — Common Bamboo
Baptisia alba var. alba — Thick-pod White Wild Indigo
Baptisia alba var. macrophylla — white wild indigo
Baptisia albescens — Narrow-pod White Wild Indigo, Spiked Wild Indigo
Baptisia arachnifera — Hairy Rattleweed, Hairy Wild Indigo
Baptisia australis var. aberrans — Eastern Prairie Blue Wild Indigo, Glade Wild Indigo
Baptisia australis var. australis — Tall Blue Wild Indigo, Streamside Blue Indigo
Baptisia bracteata var. bracteata — Creamy Wild Indigo
Baptisia bracteata var. leucophaea — longbract wild indigo
Baptisia cinerea — Carolina Wild Indigo
Baptisia lanceolata var. lanceolata — Gopherweed, Lanceleaf Wild Indigo
Baptisia megacarpa — Apalachicola Wild Indigo, Bigpod Wild Indigo
Baptisia nuttalliana — Nuttall's wild indigo
Baptisia perfoliata — Gopherweed, Catbells
Baptisia tinctoria — Horsefly Weed, Yellow Wild Indigo, Yellow False-indigo, Rattleweed
Barbarea verna — Early Winter-cress, Creasy
Barbarea vulgaris — Common Winter-cress, Yellow Rocket, Creasy
Bartonia verna — Spring Bartonia, White Bartonia, White Screwstem
Bartonia virginica — Virginia Bartonia, Yellow Screwstem, Yellow Bartonia, Common Bartonia
Batis maritima — Saltwort, Beachwort, Batis, Turtleweed
Bejaria racemosa — Tarflower, Flycatcher
Belamcanda chinensis — Blackberry-lily
Berberis canadensis — American Barberry, Allegheny Barberry
Berberis julianae — Evergreen Barberry, Wintergreen Barberry
Berberis thunbergii — Japanese Barberry
Berberis vulgaris — European Barberry, Common Barberry
Berchemia scandens — Supplejack, American Rattan, Rattan-vine
Berlandiera pumila var. pumila — Eastern Green-eyes
Betula alleghaniensis var. alleghaniensis — Yellow Birch
Betula lenta — Sweet Birch, Cherry Birch, Black Birch, "Mahogany"
Betula nigra — River Birch, Red Birch
Betula papyrifera var. cordifolia — Mountain Paper Birch
Betula papyrifera var. papyrifera — Canoe Birch, Paper Birch
Betula populifolia — Gray Birch, White Birch
Bidens alba var. radiata — Hairy Beggar-ticks, Shepherd's Needle
Bidens aristosa — Ditch Daisy, Bur-marigold, Ozark Tickseed-sunflower
Bidens aristosa — Ditch Daisy, Bur-marigold, Midwestern Tickseed-sunflower
Bidens bipinnata — Spanish Needles
Bidens cernua — Nodding Bur-marigold
Bidens frondosa — Devil's Beggar-ticks, Annual Beggar's Ticks
Bidens laevis — Showy Bur-marigold, Smooth Beggarticks
Bidens mitis — Coastal Plain Tickseed-sunflower
Bidens pilosa — Hairy Beggar-ticks
Bidens vulgata — Tall Beggar-ticks
Bigelowia nuttallii — Nuttall's Rayless Goldenrod
Bignonia capreolata — Cross-vine
Bischofia javanica — Japanese Bishopwood, Javawood, Toog, Uriam
Blephilia ciliata — Diabase Woodmint, Horsemint, Downy Woodmint
Blephilia hirsuta var. hirsuta — Hairy Woodmint
Boehmeria cylindrica — False Nettle
Boehmeria nivea — Ramie
Boerhavia diffusa — Red Spiderling, Spreading Hogweed
Boerhavia erecta — Erect Spiderling
Boltonia asteroides var. asteroides — Eastern Doll's Daisy, White Doll's Daisy, False Aster, Boltonia
Boltonia caroliniana — Carolina Doll's Daisy, Boltonia
Boltonia diffusa var. diffusa — Southern Doll's Daisy, Boltonia
Borrichia frutescens — Seaside Oxeye
Botrychium biternatum — Southern Grapefern
Botrychium dissectum — Cutleaf Grapefern, Dissected Grapefern
Botrychium lunarioides — Winter Grapefern
Botrychium matricariifolium — Daisyleaf Moonwort
Botrychium simplex — Least Moonwort
Botrychium virginianum — Rattlesnake Fern, Sang-find
Bouteloua curtipendula var. curtipendula — Side-oats Grama
Bowlesia incana — Hoary Bowlesia
Boykinia aconitifolia — Brook-saxifrage, Eastern Boykinia, Allegheny Brookfoam, Aconite-saxifrage
Brachyelytrum aristosum — Northern Shorthusk
Brachyelytrum erectum — Common Shorthusk
Brasenia schreberi — Water-shield, Purple Wen-dock
Brassica juncea — Mustard Greens, Indian Mustard, Brown Mustard, Chinese Mustard
Brassica napus — Rape, Canola, Rutabaga
Brassica nigra — Black Mustard, Charlock
Brassica rapa var. rapa — Turnip, Field Mustard, Field Rape, Chinese Cabbage
Brickellia cordifolia — Heartleaf Brickellia, Flyr's False-boneset
Brickellia eupatorioides var. eupatorioides — Eastern False-boneset, Eastern False-eupatorium
Bromus arvensis — Japanese Chess
Bromus arvensis — Field Brome
Bromus catharticus — Rescue Grass
Bromus hordeaceus ssp. hordeaceus — Soft Chess, Lopgrass
Bromus inermis ssp. inermis var. inermis — Smooth Brome, Hungarian Brome
Bromus pubescens — Common Eastern Brome, Canada Brome
Bromus racemosus — Smooth Brome
Bromus racemosus — Hairy Chess, Meadow Brome
Bromus secalinus — Cheat, Common Chess, Ryebrome
Bromus sterilis — Poverty Brome, Barren Brome, Cheatgrass