Native & Naturalized Plants of the Carolinas and Georgia

Listed below are 3659 taxa included on NameThatPlant.net as of 11/16/18, 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 setosa — Cuban 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 palmatum — Japanese 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 maritima + — Seaside Gerardia
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 Onion
Allium cernuum var. cernuum — Nodding Onion, Nodding Wild Onion
Allium cuthbertii — Cuthbert's Onion
Allium cuthbertii — Keever‚Äôs Onion, Brushy Mountain Onion
Allium sativum — Garlic
Allium speculae — Flatrock Onion
Allium stellatum — Glade Onion, Prairie Onion
Allium tricoccum — Ramps, Red Ramps, Rampscallions, Wild Leek
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, Hairy 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, Glade Windflower
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
Aphanes microcarpa — Parsley-piert, slender parsley piert
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, Northern 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 stelleriana — Beach Wormwood, Dusty Miller, Hoary Mugwort, Oldwoman
Artemisia vulgaris var. vulgaris — Mugwort, Felon Herb
Arthraxon hispidus — Basket Grass, Small Carpgrass
Arum italicum — Italian Arum, Italian Lords and Ladies
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 , Red-ring 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 — Sprenger‚Äôs Asparagus-fern, Emerald-fern
Asparagus officinalis — Garden Asparagus, Sparrowgrass
Asplenium monanthes — Single-sorus Spleenwort, One-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
Astrolepis sinuata ssp. sinuata — Wavy Cloak Fern, Wavy Scaly Cloak Fern
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-disk Honeycomb-head, Bog Honeycomb-head, Purple Balduina, 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
Bommeria hispida — Copper Fern
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
Bromus tectorum — Downy Brome, Downy Chess, Downy Cheat, Cheatgrass
Broussonetia papyrifera — Paper Mulberry
Brunnichia ovata — Buckwheat-vine, Eardrop-vine, Ladies Eardrops, Redvine
Buchnera americana — Savanna Bluehearts, Florida Bluehearts, Buchnera
Buchnera americana — American Bluehearts, Prairie Bluehearts, Plains Bluehearts
Buckleya distichophylla — Buckleya, Piratebush
Buddleja davidii — Orange-eye Butterflybush, Summer-lilac
Buddleja lindleyana — Lindley's Butterflybush
Buglossoides arvensis — Corn Gromwell
Bulbostylis barbata — Old World Hairsedge
Bulbostylis ciliatifolia var. ciliatifolia — Savannah Hairsedge
Bulbostylis ciliatifolia var. coarctata — Elliott's Hairsedge
Bulbostylis stenophylla — sandy field hairsedge
Bulbostylis warei — Ware's Hairsedge
Bupleurum rotundifolium — Hound's-ear, Hare's-ear, Thoroughwax
Burmannia biflora — Violet Burmannia, Blue Burmannia
Butia capitata — Pindo Palm, South American Jelly Palm, Brazilian Butia
Buxus sempervirens — Boxwood, Common Box
Cabomba caroliniana + — Fanwort, Carolina Fanwort
Caesalpinia bonduc — Gray Nicker, Holdback
Cakile edentula ssp. harperi — Southeastern Sea Rocket
Calamagrostis coarctata — Nuttall's Reedgrass
Calamagrostis epigeios ssp. epigeios — Bushgrass, Feathertop
Calamagrostis porteri ssp. porteri — Porter's Reedgrass
Calamintha nepeta ssp. nepeta — Lesser Calamint, Basil-thyme
Callicarpa americana — American Beautyberry, French Mulberry, Beautybush
Callicarpa dichotoma — Chinese Beautyberry, Purple Beautyberry
Callicarpa japonica — Japanese Beautyberry
Callirhoe pedata — Palmleaf Poppy-mallow
Callisia graminea — Grassleaf Roseling, Pink Spiderwort, Slender Roseling
Callisia rosea — Common Roseling
Callitriche heterophylla ssp. heterophylla — Waterstar, Common Water-starwort
Callitriche stagnalis — Pond Water-starwort, European waterstarwort
Calopogon barbatus — Bearded Grass-pink
Calopogon multiflorus — Many-flowered Grass-pink
Calopogon oklahomensis — Oklahoma Grass-pink
Calopogon pallidus — Pale Grass-pink
Calopogon tuberosus var. tuberosus — Common Grass-pink
Caltha palustris var. palustris — Marsh Marigold, Cowslip
Calycanthus floridus var. glaucus — Sweetshrub, Carolina Allspice, Strawberry-shrub, Sweet Bubby-bush
Calycocarpum lyonii — Cupseed, Lyonia-vine
Calyptocarpus vialis — Straggler-daisy, Lawnflower
Calystegia catesbeiana — Blue Ridge Bindweed, Silky Bindweed, Downy False Bindweed
Calystegia catesbeiana — Catesby's Bindweed, Catesby's False Bindweed
Calystegia sepium + — Hedge Bindweed
Calystegia silvatica ssp. fraterniflora — Twin-flowered Bindweed, Short-stalk False Bindweed
Calystegia spithamaea ssp. purshiana — Shale Bindweed
Calystegia spithamaea ssp. spithamaea — Low Bindweed, Upright Bindweed
Camassia scilloides — Wild Hyacinth, Eastern Camas Lily, Quamash Lily
Camellia japonica — Camellia
Camellia sasanqua — Sasanqua, Sasanqua Camellia
Camellia sinensis — Tea
Campanula aparinoides — Marsh Bellflower, Bedstraw Bellflower
Campanula aparinoides — marsh bellflower
Campanula divaricata — Southern Harebell, Appalachian Bellflower
Campanula rapunculoides — European Bellflower, Rampion Bellflower, Rover Bellflower
Campanula rotundifolia — Scotch Harebell, Bluebell, Bluebell-of-Scotland
Campanulastrum americanum — Tall Bellflower
Campsis radicans — Trumpet-creeper, Trumpet Vine, Cow-Itch Vine
Canna flaccida — Golden Canna, Yellow Canna, Indian Shot
Capsella bursa-pastoris — Common Shepherd's Purse
Caragana arborescens — Siberian Pea Shrub
Cardamine angustata — Eastern Slender Toothwort
Cardamine bulbosa — Bulbous Bittercress, Spring Cress
Cardamine clematitis — Clematis-leaved Bittercress, Mountain Bittercress
Cardamine concatenata — Cutleaf Toothwort
Cardamine diphylla — Broadleaf Toothwort, Crinkleroot, Pepperroot
Cardamine dissecta — Dissected Toothwort, Fineleaf Toothwort
Cardamine douglassii — Limestone Bittercress, Douglass's Bittercress, Purple Cress, Pink Spring-cress
Cardamine flagellifera + — Blue Ridge Bittercress
Cardamine flexuosa — Woodland Bittercress
Cardamine hirsuta — Hairy Bittercress
Cardamine impatiens — Narrowleaf Bittercress
Cardamine micranthera — Streambank Bittercress, Small-anthered Bittercress
Cardamine parviflora var. arenicola — Sand Bittercress, Small-flowered Bittercress
Cardamine pensylvanica — Pennsylvania Bittercress, Quaker Bittercress
Cardamine rotundifolia — Mountain Watercress, American Bittercress
Cardiospermum halicacabum — Balloon Vine, Love-in-a-puff, Heartseed
Carduus acanthoides — Plumeless Thistle
Carduus nutans — Nodding Thistle, Musk Thistle
Carex abscondita — thicket sedge
Carex albicans var. albicans — White-tinged Sedge
Carex albolutescens — Greenish-white Sedge
Carex albursina — White Bear Sedge
Carex annectens — Yellowfruit Sedge
Carex appalachica — Appalachian Sedge
Carex austrocaroliniana — South Carolina Sedge
Carex baileyi — Bailey's Sedge
Carex basiantha — Southern Willdenow's Sedge
Carex biltmoreana — Biltmore Sedge, Granite Dome Sedge
Carex blanda — eastern woodland sedge
Carex bromoides ssp. bromoides — Common Brome Sedge
Carex bromoides ssp. montana — Blue Ridge Brome Sedge
Carex caroliniana — Carolina Sedge
Carex cephalophora — oval-leaf sedge
Carex cherokeensis — Cherokee Sedge
Carex collinsii — Collins' Sedge
Carex communis var. communis — Fibrous-rooted Sedge
Carex corrugata — prune-fruit sedge
Carex crawei — Crawe's Sedge
Carex crinita var. crinita — Fringed Sedge, Drooping Sedge
Carex debilis var. debilis — white edge sedge
Carex decomposita — Cypress-knee Sedge, Epiphytic Sedge
Carex digitalis + — slender woodland sedge
Carex flaccosperma — thinfruit sedge
Carex folliculata — northern long sedge
Carex frankii — Frank's sedge
Carex glaucescens — Blue Sedge, Southern Sedge
Carex gracilescens — Slender Sedge
Carex gravida var. gravida — Heavy Sedge, Pregnant Sedge
Carex grayi — Asa Gray's Sedge
Carex grisea — inflated narrow-leaf sedge
Carex gynandra — Mountain Fringed Sedge
Carex intumescens — greater bladder sedge
Carex jamesii — James's Sedge
Carex kobomugi — Japanese Sand Sedge, Japanese Sedge, Sea Isle Sedge, Asiatic Sand Sedge
Carex laevivaginata — smoothsheath sedge
Carex laxiculmis var. laxiculmis — spreading sedge
Carex laxiflora + — broad looseflower sedge
Carex leptalea + — bristlystalked sedge
Carex longii — Long's Sedge
Carex lupuliformis — False Hop Sedge
Carex lupulina — Hop Sedge
Carex lurida — shallow sedge
Carex misera — Wretched Sedge
Carex mitchelliana — Mitchell's Sedge
Carex nigromarginata — Black-edged Sedge
Carex oxylepis + — sharpscale sedge
Carex pensylvanica — Pennsylvania Sedge, High Meadow Sedge
Carex picta — Painted Sedge
Carex pigra — Lazy Sedge
Carex plantaginea — Seersucker Sedge, Plantainleaf Sedge
Carex platyphylla — Broadleaf Sedge
Carex prasina — Necklace Sedge, Drooping Sedge
Carex radfordii — Radford's Sedge
Carex rosea — Rosy Sedge
Carex scabrata — Rough Sedge
Carex striata var. striata — Walter‚Äôs Sedge, Pocosin Sedge
Carex striatula — lined sedge
Carex stricta — Tussock Sedge
Carex styloflexa — bent sedge
Carex superata — Limestone Forest Sedge
Carex swanii — Swan's sedge
Carex torta — Twisted Sedge, Streambed Sedge
Carex tribuloides var. tribuloides — blunt broom sedge
Carex typhina — cattail sedge
Carex umbellata — Parasol Sedge
Carex verrucosa — warty sedge
Carex virescens — ribbed sedge
Carex vulpinoidea var. vulpinoidea — fox sedge
Carex willdenowii — Willdenow's Sedge
Carex woodii — Wood's Sedge
Carphephorus bellidifolius — Sandhill Chaffhead, Carphephorus
Carphephorus corymbosus — Florida Paintbrush
Carphephorus odoratissimus — Vanilla-leaf, Deer's-tongue, Pineland Purple
Carphephorus paniculatus — Deer's-tongue, Hairy Chaffhead, Panicled Chaffhead
Carphephorus tomentosus — Sticky Chaffhead
Carpinus caroliniana + — Musclewood, American Hornbeam, Blue-beech, Ironwood
Carya alba — Mockernut Hickory, White Hickory
Carya aquatica — Water Hickory, Bitter Pecan
Carya carolinae-septentrionalis — Carolina Shagbark Hickory, Southern Shagbark Hickory, Carolina Hickory
Carya cordiformis — Bitternut Hickory
Carya floridana — Scrub Hickory
Carya glabra — Pignut Hickory
Carya illinoinensis — Pecan
Carya laciniosa — Big Shellbark Hickory, Kingnut Hickory
Carya myristiciformis — Nutmeg Hickory
Carya ovalis — Red Hickory, Sweet Pignut Hickory
Carya ovata — Common Shagbark Hickory
Carya pallida — Sand Hickory, Pale Hickory
Carya texana — Black Hickory
Cassytha filiformis — Dodder Laurel, Devil's Gut, Love-vine
Castanea crenata — Japanese Chestnut
Castanea dentata — American Chestnut
Castanea mollissima — Chinese Chestnut
Castanea pumila var. pumila — Common Chinquapin, Chinkapin, Allegheny Chinquapin
Castanea sativa — Spanish Chestnut, European Chestnut
Castilleja coccinea — Eastern Indian Paintbrush
Casuarina equisetifolia — Australian-pine, Horsetail Casuarina, Beach She-oak, Coastal She-oak
Catalpa bignonioides — Southern Catalpa, Fishbait Tree, Cigar Tree
Catalpa fargesii — Farges Catalpa
Catalpa ovata — Chinese Catalpa
Catalpa speciosa — Northern Catalpa, Indian Cigar Tree, Catawba Tree
Catharanthus roseus — Rosy-periwinkle, Madagascar Periwinkle, Cayenne Jasmine
Caulophyllum thalictroides — Common Blue Cohosh, Papooseroot, Green Vivian
Cayaponia quinqueloba — Five-lobed Cucumber, Melon-leaf Cucumber
Cayratia japonica — Bushkiller, Sorrel Vine
Ceanothus americanus — New Jersey Tea, Redroot
Ceanothus herbaceus — Prairie Redroot
Cedrus deodara — Deodar cedar
Celastrus orbiculatus — Oriental Bittersweet
Celastrus scandens — American Bittersweet
Celtis laevigata — Sugarberry, Southern Hackberry, Smooth Hackberry, Lowland Hackberry
Celtis laevigata — Small's Hackberry
Celtis occidentalis — Northern Hackberry
Celtis sinensis — Chinese Hackberry
Celtis tenuifolia — Georgia Hackberry, Dwarf Hackberry
Cenchrus brownii — slimbristle sandbur
Cenchrus longispinus — Northern Sandspur, Common Sandspur
Cenchrus spinifex — Coastal Sandspur
Cenchrus tribuloides — Dune Sandbur, Dune Sandspur
Centaurea cyanus — Bachelor's Buttons, Cornflower
Centaurea diffusa — Tumble Knapweed
Centaurea jacea — Brown Knapweed
Centaurea melitensis — Maltese Star-thistle
Centaurea nigra — Black Knapweed, Spanish-buttons
Centaurea nigrescens — Tyrol Knapweed, Short-fringed Knapweed
Centaurea stoebe ssp. micranthos — Spotted Knapweed, Bushy Knapweed
Centaurea Xmoncktonii — Meadow Knapweed
Centella erecta — Centella, Coinleaf, False Pennywort
Centrosema virginianum — Climbing Butterfly-pea, Spurred Butterfly-pea
Cephalanthus occidentalis — Buttonbush
Cerastium brachypetalum — Gray Mouse-ear, Gray Mouse-ear Chickweed
Cerastium fontanum ssp. vulgare — Common Mouse-ear, Mouse-ear Chickweed
Cerastium glomeratum — Sticky Mouse-ear, Sticky Chickweed, Sticky Mouse-ear Chickweed
Cerastium nutans var. nutans — Mouse-ear Chickweed
Cerastium semidecandrum — Little Mouse-ear, Little Mouse-ear Chickweed
Ceratiola ericoides — Florida Rosemary, Sandhill Rosemary, Sand Heath
Cercis canadensis var. canadensis — Eastern Redbud, Judas Tree
Chaenomeles speciosa — Common Flowering Quince
Chaerophyllum tainturieri var. tainturieri — Southern Chervil, Wild Chervil, Hairyfruit Chervil
Chamaecrista fasciculata var. fasciculata — Common Partridge Pea, Showy Partridge Pea
Chamaecrista nictitans ssp. nictitans var. nictitans — Common Sensitive-plant, Sensitive Partridge Pea
Chamaecyparis thyoides — Atlantic White Cedar, Juniper
Chamaedaphne calyculata — Leatherleaf, Cassandra
Chamaelirium luteum — Fairywand, Devil's Bit
Chamaesyce bombensis — Southern Seaside Spurge, Dixie Sandmat
Chamaesyce hirta — Pillpod Sandmat, Hairy Spurge
Chamaesyce hypericifolia — graceful sandmat
Chamaesyce hyssopifolia — Hyssopleaf Sandmat
Chamaesyce maculata — Spotted Spurge, Milk-purslane, Wartweed, Spotted Sandmat
Chamaesyce nutans — Eyebane
Chamaesyce polygonifolia — Dune Spurge, Northern Seaside Spurge, Northern Sandmat
Chamerion angustifolium ssp. circumvagum — Great Willow-herb, Fireweed
Chaptalia tomentosa — Woolly Sunbonnets, Pineland Daisy, Night-nodding Bog-dandelion, Sunbonnets
Chasmanthium latifolium — River Oats, Northern Sea Oats, Fish-on-a-Pole, Indian Woodoats
Chasmanthium laxum — Slender Woodoats, Slender Spikegrass
Chasmanthium sessiliflorum — Longleaf Woodoats, Upland Oats, Longleaf Spikegrass
Cheilanthes alabamensis — Alabama Lipfern
Cheilanthes lanosa — Hairy Lipfern
Cheilanthes tomentosa — Woolly Lipfern
Chelidonium majus var. majus — Greater Celandine, Rock-poppy, Swallow-wort
Chelone cuthbertii — Cuthbert‚Äôs Turtlehead
Chelone glabra — White Turtlehead
Chelone lyonii — Mountain Turtlehead, Pink Turtlehead, Appalachian Turtlehead
Chelone obliqua + — Purple Turtlehead
Chenopodium album var. album — Lambsquarters, Pigweed
Chimaphila maculata — Pipsissewa, Striped Wintergreen, Spotted Wintergreen
Chimaphila umbellata ssp. cisatlantica — Prince's-pine, Pipsissewa
Chionanthus virginicus — Fringetree, Grancy Graybeard, Old Man's Beard, Grandsir-graybeard
Chrysogonum virginianum + — Green-and-gold
Chrysoma pauciflosculosa — Woody Goldenrod, Bush Goldenrod
Chrysopogon pauciflorus — Florida Goldbeard, Florida Rhaphis
Chrysopsis gossypina ssp. gossypina — Woolly Golden-aster, Cottonleaf Golden-aster, Gossamer Golden-aster
Chrysopsis mariana — Maryland Golden-aster
Chrysopsis pilosa — Soft Golden-aster, Hairy Golden-aster
Chrysopsis subulata — scrubland golden-aster
Chrysosplenium americanum — Golden-saxifrage, Water-carpet, Water-mat
Cichorium intybus — Chicory, Blue Sailors, Succory
Cicuta maculata var. maculata — Water Hemlock, Spotted Cowbane
Cicuta maculata var. maculata — Southern Water Hemlock
Cinna arundinacea — Common Woodreed, Stout Woodreed, Sweet Woodreed
Cinnamomum camphora — Camphortree
Circaea alpina ssp. alpina — Alpine Enchanter's Nightshade, Smaller Enchanter's Nightshade
Circaea lutetiana ssp. canadensis — Canada Enchanter's Nightshade
Cirsium altissimum — Tall Thistle
Cirsium arvense — Canada Thistle, Field Thistle
Cirsium carolinianum — Carolina Thistle, Spring Thistle, Soft Thistle
Cirsium discolor — Field Thistle
Cirsium horridulum var. horridulum — Common Yellow Thistle, Purple Thistle
Cirsium lecontei — LeConte's Thistle
Cirsium muticum — Swamp Thistle
Cirsium nuttallii — Coastal Tall Thistle
Cirsium pumilum — Pasture Thistle
Cirsium repandum — Sandhill Thistle
Cirsium virginianum — Virginia Thistle
Cirsium vulgare — Bull Thistle
Cissus trifoliata — Marine-ivy
Citrullus lanatus var. lanatus — Watermelon
Cladium mariscus ssp. jamaicense — Sawgrass
Cladrastis kentukea — Kentucky Yellowwood, Gopherwood
Claytonia caroliniana + — Carolina Spring-beauty
Claytonia virginica + — Spring-beauty
Cleistes bifaria — Appalachian Small Spreading Pogonia, Smaller Rosebud Orchid, Upland Spreading Pogonia
Cleistes bifaria — Coastal Plain Small Spreading Pogonia
Cleistes divaricata — Rosebud Orchid, Large Spreading Pogonia
Clematis albicoma — White-haired Leatherflower
Clematis catesbyana — Coastal Virgin's Bower, Satin-curls, Climbing Clematis
Clematis crispa — Southern Leatherflower, Marsh Clematis
Clematis flammula — Fragrant Clematis, Fragrant Virgin's Bower, Sweet-scented Virgin's Bower
Clematis fremontii — Fremont's Leatherflower
Clematis glaucophylla — White-leaved Leatherflower
Clematis occidentalis var. occidentalis — Mountain Clematis, Purple Clematis
Clematis ochroleuca — Curlyheads
Clematis reticulata — Vase-vine
Clematis socialis — Alabama Leatherflower
Clematis terniflora — Sweet Autumn Clematis, Yam-leaved Clematis, Sweet Autumn Virgin's Bower
Clematis versicolor — Pale Leatherflower
Clematis viorna — Northern Leatherflower, Vase-vine
Clematis virginiana — Virgin's Bower
Clematis vitalba — Traveler‚Äôs Joy, Old Man's Beard
Clematis viticaulis — Millboro Leatherflower
Cleome hassleriana — Cleome, Spiderflower, Pinkqueen
Cleome rutidosperma — Cleome, Fringed Spiderflower
Clerodendrum bungei — Clerodendrum, Rose Glorybower
Clerodendrum trichotomum var. ferrugineum — Harlequin Glorybower
Clethra acuminata — Mountain Sweet-pepperbush, Cinnamonbark, Cinnamon Clethra, Mountain White-alder
Clethra alnifolia — Coastal Sweet-pepperbush, Coastal White-alder
Clethra alnifolia — Downy Sweet-pepperbush, Downy White-alder
Cliftonia monophylla — Buckwheat-tree, Black Titi, Buckwheat-bush
Clinopodium ashei — Ashe's Savory, Ashe's Calamint, Ohoopee Dunes Wild Basil
Clinopodium coccineum — Scarlet Wild Basil, Scarlet Calamint, Red Mint Shrub
Clinopodium georgianum — Georgia Savory, Georgia Basil, Georgia Calamint, False Peppermint
Clinopodium gracile — Slender Wild Basil
Clinopodium vulgare — Wild Basil
Clintonia borealis — Bluebead-lily, Clinton's Lily, Yellow Clintonia, Yellow Bead Lily
Clintonia umbellulata — Speckled Wood-lily, White Clintonia
Clitoria mariana — Butterfly-pea
Cnicus benedictus — Blessed Thistle
Cnidoscolus urens var. stimulosus — Spurge-nettle, Tread-softly, Bull-nettle, Finger-rot
Cocculus carolinus — Carolina Moonseed, Coralbeads, Carolina Snailseed, Red Moonseed
Cocos nucifera — Coconut Palm
Coelorachis rugosa — Wrinkled Jointgrass
Coincya monensis ssp. recurvata — Wallflower-cabbage, Coincya
Collinsia verna — Eastern Blue-eyed Mary
Collinsonia canadensis — Northern Horsebalm, Citronella, Canada Stoneroot, Canada Horsebalm
Collinsonia serotina — Florida Horsebalm
Collinsonia serotina — Southern Horsebalm, Anise Horsebalm
Collinsonia tuberosa — Tuberous Horsebalm, Stoneroot
Collinsonia verticillata — Whorled Horsebalm
Colocasia esculenta — Elephant's Ear, Taro, Dasheen
Comandra umbellata ssp. umbellata — Eastern Bastard Toadflax
Commelina benghalensis — Tropical Spiderwort, Bengal Dayflower
Commelina caroliniana — Indian Dayflower
Commelina communis — Asiatic Dayflower, Common Dayflower
Commelina diffusa var. diffusa — Spreading Dayflower, Creeping Dayflower
Commelina erecta var. angustifolia — Sand Dayflower, Pineland Dayflower
Commelina erecta var. erecta — Erect Dayflower, Slender Dayflower
Commelina virginica — Virginia Dayflower
Comptonia peregrina — Sweet-fern
Conium maculatum — Poison Hemlock
Conoclinium coelestinum — Mistflower, Wild Ageratum, Hardy Ageratum
Conopholis americana — Squawroot, Bearcorn
Conradina canescens — Gray Rosemary, Conradina
Conradina glabra — Appalachicola Rosemary
Conradina verticillata — Cumberland Rosemary
Convallaria majalis — European Lily-of-the-valley
Convallaria majuscula — American Lily-of-the-valley
Convolvulus arvensis — Field Bindweed, Creeping Jenny, Possession-vine, Cornbind
Conyza canadensis var. canadensis — Common Horseweed
Conyza canadensis var. pusilla — Southern Horseweed
Coptis trifolia — Goldthread, Goldenroot
Corallorhiza maculata — Eastern Spotted Coralroot
Corallorhiza odontorhiza + — Autumn Coralroot
Corallorhiza wisteriana — Spring Coralroot, Wister's Coralroot
Coreopsis auriculata — Eared Coreopsis, Lobed Coreopsis, Eared Tickseed
Coreopsis basalis — Texas Coreopsis
Coreopsis delphiniifolia — Larkspur Coreopsis
Coreopsis falcata — Pool Coreopsis, Carolina Tickseed
Coreopsis gladiata — Swamp Coreopsis, Swamp Tickseed
Coreopsis grandiflora var. grandiflora — Large-flowered Coreopsis, Large-flower Tickseed
Coreopsis grandiflora var. harveyana — Large-flowered Coreopsis, Large-flower Tickseed
Coreopsis lanceolata — Lanceleaf Coreopsis, Longstalk Coreopsis
Coreopsis latifolia — Broadleaf Coreopsis, Broad-leaved Tickseed
Coreopsis major — Woodland Coreopsis, Whorled Coreopsis
Coreopsis major — Whorled Coreopsis, Stiffleaf Coreopsis, Greater Tickseed, Whorled Tickseed
Coreopsis nudata — Swamp Coreopsis
Coreopsis palmata — Prairie Coreopsis
Coreopsis pubescens + — Hairy Coreopsis, Star Tickseed
Coreopsis pulchra — Lookout Mountain Coreopsis
Coreopsis rosea — Rose Coreopsis, Pink Tickseed
Coreopsis tinctoria var. tinctoria — Plains Coreopsis, Calliopsis, Garden Coreopsis
Coreopsis tripteris — Tall Coreopsis, Tall Tickseed, Threeleaf Tickseed
Coreopsis verticillata — Threadleaf Coreopsis, Cutleaf Tickseed
Cornus alternifolia — Alternate-leaf Dogwood, Pagoda Dogwood, Pagoda Cornel
Cornus amomum — Silky Dogwood, Bush Dogwood, Silky Cornel
Cornus asperifolia — Eastern Roughleaf Dogwood
Cornus canadensis — Bunchberry, Dwarf Dogwood, Dwarf Cornel
Cornus drummondii — Midwestern Roughleaf Dogwood
Cornus florida — Flowering Dogwood
Cornus foemina — Southern Swamp Dogwood
Cornus kousa — Kousa Dogwood
Cornus racemosa — Northern Swamp Dogwood, Gray Dogwood
Cornus sericea ssp. sericea — Red Osier Dogwood, Bailey's Dogwood
Coronopus didymus — Wart-cress, Lesser Swine-cress
Cortaderia selloana — Pampas Grass
Corydalis flavula — Yellow Fumitory, Yellow Harlequin, Short-spurred Corydalis
Corydalis incisa — Incised Fumewort, Purple Keman
Corydalis micrantha ssp. australis — Southern Corydalis
Corydalis micrantha ssp. micrantha — Slender Corydalis
Corydalis sempervirens — Pale Corydalis, Rock Harlequin, Pink Corydalis, Tall Corydalis
Corylus americana — American Hazelnut, American Filbert
Corylus cornuta var. cornuta — Beaked Hazelnut
Cotinus obovatus — American Smoketree
Crataegus aemula — Rome Hawthorn
Crataegus aestivalis — Mayhaw, Eastern Mayhaw
Crataegus berberifolia — Barberry Hawthorn
Crataegus brachyacantha — Blueberry Hawthorn
Crataegus calpodendron — Pear Hawthorn
Crataegus chrysocarpa — Margaret's Hawthorn
Crataegus condigna — Pygmy Hawthorn
Crataegus crus-galli — Cockspur Hawthorn
Crataegus dispar — Aiken Hawthorn
Crataegus disperma — Two-seed Hawthorn
Crataegus flava — Rough Hawthorn, Southern Haw
Crataegus flava — Alabama Hawthorn
Crataegus flava — Sunny Hawthorn
Crataegus flava — Yellow Hawthorn
Crataegus flava — Sandhill Hawthorn
Crataegus flava — Bristol Hawthorn
Crataegus flava — Ravenel's Hawthorn
Crataegus flava — Lance‚Äôs Hawthorn
Crataegus flava — Smooth Alabama Hawthorn, Montgomery Hawthorn
Crataegus harbisonii — Ashe Hawthorn
Crataegus harbisonii — Harbison's Hawthorn
Crataegus integra — Lake Ella Hawthorn
Crataegus intricata — Entangled Hawthorn
Crataegus intricata — Buckley's Hawthorn
Crataegus intricata — Boynton's Hawthorn
Crataegus intricata — Birmingham Hawthorn
Crataegus intricata — Biltmore Hawthorn
Crataegus intricata — Bush Hawthorn
Crataegus intricata — Little Red Hawthorn
Crataegus intricata — hawthorn
Crataegus intricata — Yellow-fruited Entangled Hawthorn
Crataegus iracunda — Forest Hawthorn
Crataegus lacrimata — Weeping Hawthorn
Crataegus lanata — Lanate Hawthorn
Crataegus limnophila — Narrowleaf Cockspur Hawthorn
Crataegus macrosperma — Eastern Hawthorn
Crataegus macrosperma — Balsam Mountain Hawthorn
Crataegus marshallii — Parsley Hawthorn, Parsley Haw
Crataegus mendosa — Albertville Hawthorn
Crataegus mollis — Downy Hawthorn
Crataegus monogyna — English Hawthorn, Singleseed Hawthorn
Crataegus munda — Batesburg hawthorn
Crataegus munda — Woolly Dwarf Hawthorn
Crataegus opaca — Western Mayhaw
Crataegus pedicellata — Scarlet Hawthorn
Crataegus pennsylvanica — Pennsylvania Hawthorn
Crataegus phaenopyrum — Washington Hawthorn, Virginia Hawthorn
Crataegus pruinosa — Frosted Hawthorn
Crataegus pulcherrima — Beautiful Hawthorn
Crataegus pulcherrima — Broadleaved Beautiful Hawthorn
Crataegus punctata — Dotted Hawthorn, White Hawthorn
Crataegus rufula — Rufous Mayhaw, Florida Mayhaw
Crataegus sargentii — Sargent's Hawthorn
Crataegus sargentii — Red Mountain Hawthorn
Crataegus schuettei — Schuette's Hawthorn
Crataegus spathulata — Littlehip Hawthorn, Spatulate Haw
Crataegus succulenta — Fleshy Hawthorn
Crataegus succulenta — New River Hawthorn
Crataegus triflora — Threeflower Hawthorn
Crataegus uniflora — Oneflower Hawthorn, Dwarf Haw
Crataegus vailiae — Vail‚Äôs Hawthorn
Crataegus viridis var. viridis — Green Hawthorn
Crepis capillaris — Smooth Hawksbeard
Crepis pulchra — Smallflower Hawksbeard
Crinum americanum — Swamp Lily, String Lily, Seven-sisters
Croptilon divaricatum — Scratch-daisy, Goldenweed
Crossopetalum ilicifolium — Holly-leaf Rhacoma, Christmasberry, Quailberry
Crotalaria ochroleuca — Slenderleaf Rattlebox
Crotalaria pallida var. obovata — Smooth Rattlebox
Crotalaria purshii — Coastal Plain Rattlebox, Pursh's Rattlebox
Crotalaria rotundifolia — Low Rattlebox, Rabbitbells
Crotalaria rotundifolia — Low Rattlebox, Rabbitbells
Crotalaria sagittalis — Common Rattlebox
Crotalaria spectabilis — Showy Rattlebox
Croton alabamensis var. alabamensis — Alabama Croton
Croton argyranthemus — Silver Croton, Sandhill Croton, Healing Croton
Croton capitatus var. capitatus — Woolly Croton, Hogwort, Capitate Croton
Croton elliottii — Elliott's Croton, Pondshore Croton
Croton glandulosus var. septentrionalis — Doveweed, Tooth-leaved Croton, Sand Croton
Croton michauxii var. elliptica — Outcrop Rushfoil, Willdenow's Croton, Glade Rushfoil, Broadleaf Rushfoil
Croton michauxii var. michauxii — Sand Rushfoil, Michaux's Croton, Narrowleaf Rushfoil
Croton monanthogynus — Prairie-tea, One-seed Croton
Croton punctatus — Silverleaf Croton, Gulf Croton, Beach-tea
Cruciata pedemontana — Piedmont Crosswort, Piedmont Bedstraw
Cryptotaenia canadensis — Honewort
Ctenium aromaticum — Toothache Grass, Orange Grass
Ctenium floridanum — Florida Toothache Grass, Florida orangegrass
Cudrania tricuspidata — Cudrania, Strawberry-bush, Chinese Che
Cunila origanoides — Stone-mint, American Dittany, Wild-oregano
Cuphea carthagenensis — Colombian Waxweed
Cuphea viscosissima — Clammy Cuphea, Blue Waxweed
Cupressus arizonica — Arizona Cypress
Cuscuta cephalanthi — Buttonbush Dodder
Cuscuta compacta var. compacta — Compact Dodder
Cuscuta coryli — Hazel Dodder
Cuscuta gronovii var. gronovii — Common Dodder
Cuscuta harperi — Harper's Dodder
Cuscuta indecora + — Bigseed Alfalfa Dodder
Cuscuta japonica — Japanese Dodder
Cuscuta obtusiflora var. glandulosa — Glandular Dodder
Cuscuta pentagona var. pentagona — Five-angled Dodder
Cuscuta pentagona var. pentagona — Field Dodder, Prairie Dodder, Golden Dodder
Cuscuta polygonorum — Smartweed Dodder
Cuscuta rostrata — Appalachian Dodder, Beaked Dodder
Cuscuta suaveolens — Fringed Dodder
Cycas revoluta — Sago-palm
Cyclospermum leptophyllum — Marsh-parsley
Cymophyllus fraserianus — Fraser's Sedge, Lily-leaf Sedge
Cynanchum angustifolium — Swallow-wort, Sand-vine
Cynanchum laeve — Bluevine, Sandvine, Honeyvine
Cynanchum louiseae — Black Swallow-wort, Dog-Strangling Vine
Cynanchum scoparium — Leafless Swallow-wort, Cynanchum
Cynodon dactylon — Bermuda Grass, Scotch Grass
Cynoglossum officinale — Hound's-tongue, Garden Comfrey
Cynoglossum virginianum var. virginianum — Wild Comfrey
Cyperus articulatus — jointed flatsedge
Cyperus compressus — Poorland Flatsedge
Cyperus croceus — Globe Sedge
Cyperus difformis — Variable Flatsedge, Smallflower Umbrella Sedge
Cyperus entrerianus — Deep-rooted Sedge
Cyperus erythrorhizos — Redroot Flatsedge
Cyperus esculentus + — Yellow Nutsedge, Yellow Nutgrass, Wild Chufa, Earth-almond