Native & Naturalized Plants of the Carolinas and Georgia

Listed below are an additional 1804 names recognized by various authorities for some of the plants included on this website, as of 11/18/19. A plus sign indicates that the source further divides that species into varieties or subspecies. Click the scientific name to link to information and (maybe) pictures!

 

Abutilon abutilon — Velvetleaf, Indian Mallow, Butterprint
Acalypha virginica var. rhomboidea — Common Three-seeded Mercury, Rhombic Copperleaf
Acanthoxanthium spinosum — Spiny Cocklebur
Acer pseudo-platanus — Sycamore Maple, Planetree Maple
Acerates floridana — Longleaf Milkweed, Savanna Milkweed
Acetosa hastatula — Wild Dock, Sourgrass, Heartwing Sorrel, Wild Sorrel
Acetosella acetosella — Sheep Sorrel, Field Sorrel, Red Sorrel, Sourgrass
Achyranthes japonica — Japanese Chaff-flower
Achyranthes philoxeroides — Alligator-weed
Acnida alabamensis — Southern Water-hemp, Careless
Acnida cuspidata — Southern Water-hemp, Careless
Aconogonon polystachyum — Himalayan Knotweed, Kashmir Plume, cultivated knotweed
Acosta diffusa — Tumble Knapweed
Actinomeris alternifolia — Common Wingstem
Actinospermum angustifolium — coastal plain honeycomb-head
Acuan illinoense — Bundleflower, Prairie Mimosa
Adicea pumila — Greenfruit Clearweed, Richweed, Coolwort
Aesculus glabra — Ohio Buckeye, Fetid Buckeye
Agaloma graminea — grassleaf spurge
Ageratina aromatica var. incisa — Small-leaved White Snakeroot, Aromatic Snakeroot, Wild-hoarhound, Small White Snakeroot
Agrimonia bicknellii — Downy Agrimony
Agrimonia platycarpa — Low Agrimony, Small-fruited Agrimony
Agrostis alba — Black Bentgrass, Redtop
Agrostis hiemalis — Ticklegrass, Small Bentgrass, Hairgrass
Agrostis palustris — Creeping Bentgrass
Agrostis perennans var. elata — Coastal Bog Bentgrass
Agrostis perennans var. perennans — Autumn Bentgrass, Upland Bent
Aira caryophyllea var. capillaris — Elegant Hairgrass
Aira elegantissima — Elegant Hairgrass
Aira flexuosa — Appalachian Hairgrass, Crinkled Hairgrass, Common Hairgrass, Wavy Hairgrass
Albizzia julibrissin — Mimosa, Silktree
Aleurites fordii — Tung-oil Tree
Alliaria officinalis — Garlic Mustard, Hedge Garlic
Allionia nyctaginea — Wild Four-o'clock, Heart-leaved Umbrella-wort
Allium ampeloprasum var. atroviolaceum — Wild Leek, Yorktown Onion
Allium arenicola — Wild Onion
Allium atroviolaceum — Wild Leek, Yorktown Onion
Allium keeverae — Keever’s Onion, Brushy Mountain Onion
Allium microscordion — Wild Onion
Alnus alnus — Black Alder, European Alder
Alnus rugosa — Speckled Alder
Alnus viridis var. crispa — Green Alder, Mountain Alder
Alopecurus ramosus — Carolina Foxtail Grass
Alsine aquatica — Water-chickweed, Giant Chickweed, Water Mouse-ear
Alsine media — Common Chickweed
Alsine pubera — Giant Chickweed, Star Chickweed, Great Chickweed, Common Starwort
Amarolea americana — Devilwood, Wild Olive
Ambrosia porcheriorum — Outcrop Ragweed, Glade Ragweed
Amelanchier alabamensis — Downy Serviceberry, Sarvisberry
Amelanchier arborea var. alabamensis — Downy Serviceberry, Sarvisberry
Amelanchier oblongifolia — Eastern Serviceberry, Canadian Serviceberry
Ampelamus laevis — Bluevine, Sandvine, Honeyvine
Ampelopsis glandulosa var. brevipedunculata — Porcelain-berry, Amur Peppervine
Ampelopsis heterophylla — Porcelain-berry, Amur Peppervine
Ampelothamnus phillyreifolius — Vine-wicky, Climbing Fetterbush, Climbing Wicky
Amphicarpon amphicarpon — Pinebarrens Peanut-grass, Pinebarrens Goober-grass, New Jersey Goober-grass
Amphistelma scoparia — Leafless Swallow-wort, Cynanchum
Amsonia ciliata var. tenuifolia — Sandhills Bluestar, Fringed Bluestar
Amsonia tabernaemontana var. salicifolia — Wideleaf Bluestar, Blue Dogbane
Anacharis densa — Brazilian Waterweed, Brazilian Egeria, "Brazilian Elodea", "Anacharis"
Andromeda glaucophylla — Bog-rosemary
Andromeda populifolia — Tall Fetterbush, Florida Leucothoe, Agarista, Pipe-plant
Andropogon campyloracheus — Elliott's Bluestem
Andropogon elliottii var. stenophyllus — Narrow-leaved Bluestem
Andropogon glomeratus var. glaucopsis — Big Chalky Bluestem, Coastal Bluestem
Andropogon scoparius var. scoparius — Little Bluestem
Andropogon stolonifer — Creeping Little Bluestem
Andropogon virginicus var. glaucopsis — Big Chalky Bluestem, Coastal Bluestem
Andropogon virginicus var. glaucus — Dryland White Bluestem, Chalky Bluestem
Andropogon virginicus var. hirsutior — Savanna Bushy Bluestem, Hairy Bluestem
Anemone quinquefolia var. bifolia — Wood Anemone
Anemonella thalictroides — Windflower, Rue-anemone
Angelica curtisii — Mountain Angelica, Filmy Angelica, Appalachian Angelica
Angelica villosa — Hairy Angelica, Downy Angelica, Deadly Angelica
Antennaria calophylla — Big-head Pussytoes
Antennaria fallax var. calophylla — Big-head Pussytoes
Antennaria neglecta var. neglecta — Field Pussytoes
Antennaria neglecta var. neodioica — Pussytoes
Antennaria neodioica var. neodioica — Pussytoes
Antennaria parlinii var. arnoglossa — Parlin's Pussytoes
Antennaria plantaginifolia var. parlinii — Parlin's Pussytoes
Antenoron virginianum — Jumpseed
Anthemis arvensis var. agrestis — Corn Chamomile, Field Chamomile
Anthemis arvensis var. arvensis — Corn Chamomile, Field Chamomile
Anthriscus scandicinus — Bur Chervil, Bur-parsley
Anticlea elegans — White Death-camas, White Camass
Anychia canadensis — Forked Chickweed, Canada Whitlow-wort
Arabis burkii — Burk's Smooth Rockcress
Arabis laevigata — Common Smooth Rockcress
Arabis virginica — Sibara, Virginia-cress
Arachis prostrata — Grassnut
Arenaria glabra — Appalachian Sandwort
Arenaria lanuginosa ssp. lanuginosa var. longipedunculata — Spreading Sandwort
Arenaria patula var. patula — Lime-barren Sandwort, Glade Sandwort
Arenaria serpyllifolia ssp. leptoclados — Small Thyme-leaved Sandwort, Slender Sandwort
Arenaria serpyllifolia var. serpyllifolia — Large Thyme-leaved Sandwort
Argemone alba — White Prickly-poppy, Carolina Poppy
Arisaema triphyllum var. acuminatum — Florida Jack in the Pulpit
Arisaema triphyllum var. pusillum — Small Jack in the Pulpit
Arisaema triphyllum var. triphyllum — Common Jack in the Pulpit , Indian Turnip
Arisaema triphyllum var. triphyllum — Bog Jack in the Pulpit, Northern Jack in the Pulpit
Aristida stricta var. beyrichiana — Southern Wiregrass
Aristida stricta var. stricta — Carolina Wiregrass, Pineland Three-awn
Aristolochia convolvulacea — Turpentine-root, Virginia Snakeroot, Serpent Birthwort
Aristolochia durior — Dutchman's Pipe, Pipevine
Aristolochia hastata — Turpentine-root, Virginia Snakeroot, Serpent Birthwort
Aristolochia littoralis — Elegant Dutchman's Pipe, Calico Flower
Arnoglossum muehlenbergii — Great Indian Plantain
Aronia atropurpurea — Purple Chokeberry
Artemisia ludoviciana var. gnaphalodes — White Sage, Prairie Sage
Artemisia ludoviciana var. ludoviciana — White Sage, Prairie Sage
Artemisia stellerana — Beach Wormwood, Dusty Miller, Hoary Mugwort, Oldwoman
Arundinaria gigantea ssp. gigantea — River Cane, Giant Cane
Arundinaria gigantea ssp. tecta — Switch Cane, Small Cane
Arundinaria gigantea ssp. tecta — Hill Cane
Arundinaria tecta var. decidua — Hill Cane
Arundo donax var. donax — Giant Reed
Arundo donax var. versicolor — Giant Reed
Asarum arifolium — Little Brown Jug, Arrowhead Heartleaf
Asarum arifolium var. arifolium — Little Brown Jug, Arrowhead Heartleaf
Asarum callifolium — heartleaf
Asarum canadense var. acuminatum — Wild Ginger
Asarum canadense var. reflexum — Wild Ginger
Asarum contractum — Dwarf-flower Heartleaf
Asarum contractum — French Broad Heartleaf, Carolina Heartleaf
Asarum contractum — Mountain Heartleaf
Asarum heterophyllum — Heartleaf Ginger, Variable-leaf Heartleaf, Wild Ginger
Asarum lewisii — Lewis's Heartleaf
Asarum minus — Little Heartleaf, Small Heartleaf Ginger
Asarum rhombiformis — Dwarf-flower Heartleaf
Asarum rhombiformis — French Broad Heartleaf, Carolina Heartleaf
Asarum ruthii — Appalachian Little Brown Jug
Asarum shuttleworthii var. harperi — Harper's Heartleaf
Asarum shuttleworthii var. shuttleworthii — Large-flower Heartleaf, Wild Ginger
Asarum species 1 — Sandhill Heartleaf, Streamhead Heartleaf
Asarum virginicum — Virginia Heartleaf, Virginia Ginger
Asclepias lanceolata var. paupercula — Few-flower Milkweed, Red Milkweed
Asclepias laurifolia — Purple Savanna Milkweed, Red Milkweed, Bog Milkweed
Asclepias longifolia ssp. hirtella — Barrens Milkweed
Asclepias longifolia var. hirtella — Barrens Milkweed
Asclepias longifolia var. longifolia — Longleaf Milkweed, Savanna Milkweed
Asclepias pulchra — Eastern Swamp Milkweed
Asclepiodora viridis — Green Antelope-horn, Spider Milkweed, Green Milkweed
Ascyrum hypericoides — St. Andrew's Cross
Ascyrum hypericoides var. multicaule — Creeping St. Andrew's Cross, Low St. Johnswort, Straggling St. Johnswort
Ascyrum linifolium — St. Andrew's Cross
Ascyrum pumilum — Pineland St. Johnswort
Ascyrum stans — St. Peter's-wort, St. Andrew's Cross, St. Peter's Cross
Ascyrum tetrapetalum — Low St. Peter's-wort
Asemeia cumulicola — Showy Milkwort
Asimina ×piedmontana [parviflora × triloba] — Hybrid Pawpaw
Asplenium ×pinnatifidum — Lobed Spleenwort
Aster avitus — Alexander's Rock Aster
Aster camptosorus — Short's Aster, Midwestern Blue Heart-leaved Aster
Aster chlorolepis — Blue Ridge White Heart-leaved Aster
Aster concinnus — Narrow-leaved Smooth Blue Aster
Aster cordifolius var. sagittifolius — White Arrowleaf Aster, Arrowleaf Blue Wood Aster
Aster elodes — New York Aster
Aster eryngiifolius — Eryngo-leaved Aster, Thistleleaf Aster
Aster georgianus — Georgia Aster
Aster lanceolatus var. latifolius — Broad-leaved Panicled Aster
Aster lanceolatus var. simplex — Broad-leaved Panicled Aster
Aster lowrieanus — Smooth Heart-leaved Aster, Lowrie's Aster
Aster mirabilis — Piedmont Aster
Aster patens var. patens — Late Purple Aster, Common Clasping Aster, Late Blue Aster, Skydrop Aster
Aster patens var. phlogifolius — Appalachian Clasping Aster
Aster phlogifolius — Appalachian Clasping Aster
Aster pilosus var. pilosus — Frost Aster, White Heath Aster
Aster praealtus — Willow Aster, Veiny Lined Aster, Tall Aster
Aster ptarmicoides — White Prairie-goldenrod, Upland White Aster
Aster puniceus var. elliottii — Elliott's Aster, Southern Swamp Aster
Aster radula — Rough-leaved Aster, Low Rough Aster
Aster retroflexus — Curtis' Aster
Aster schreberi — Schreber's Aster
Aster sericeus — Western Silvery Aster
Aster sericocarpoides — Pocosin Flat-topped Aster, Southern Whitetop, Streamhead Flat-topped Aster
Aster shortii — Short's Aster, Midwestern Blue Heart-leaved Aster
Aster subulatus var. ligulatus — Midwestern Salt-marsh Aster
Aster subulatus var. subulatus — Eastern Salt-marsh Aster
Aster walteri — Walter's Aster
Astranthium integrifolium var. integrifolium — eastern western-daisy
Atamosco atamasco — Common Atamasco Lily, Rain-lily, Easter Lily, Naked Lily
Atamosco candida — Fall Rain-lily
Atamosco simpsonii — Florida Atamasco Lily, Red-margined Atamasco Lily
Atamosco treatiae — Rain-lily, Treat's Zephyr-lily
Athyrium filix-femina var. angustum — Northern Lady Fern
Athyrium filix-femina var. asplenioides — Southern Lady Fern
Athyrium filix-femina var. michauxii — Northern Lady Fern
Atragene americana — Mountain Clematis, Purple Clematis
Aureolaria pedicularia var. pectinata — Southern Oak-leach, Sticky False-foxglove
Azalea alabamensis — Alabama Azalea
Azalea arborescens — Sweet Azalea, Smooth Azalea
Azalea atlantica — Dwarf Azalea, Coastal Azalea
Azalea austrina — Florida Flame Azalea, Yellow Azalea
Azalea calendulacea — Flame Azalea
Azalea canescens — Piedmont Azalea, Southern Pinxterbloom Azalea, Wild Azalea
Azalea nudiflora — Pinxterflower, Pinxterbloom Azalea, Election Pink, Pinxter Azalea
Azalea pilosa — Minniebush
Azalea prinophylla — Election Pink, Roseshell Azalea, Early Azalea
Azalea prunifolia — Plumleaf Azalea
Azalea speciosa — Oconee Azalea
Azalea viscosa — Swamp Azalea, Clammy Azalea, Swamp Honeysuckle, Catch-fly Azalea
Bacopa acuminata — Mecardonia, Common Axilflower
Bacopa stragula — Tropical Water-hyssop
Balsamita major — Mint-geranium
Baptisia australis var. minor — Eastern Prairie Blue Wild Indigo, Glade Wild Indigo
Baptisia lactea var. lactea — white wild indigo
Baptisia minor var. aberrans — Eastern Prairie Blue Wild Indigo, Glade Wild Indigo
Baptisia pendula var. macrophylla — white wild indigo
Batodendron arboreum — Sparkleberry, Farkleberry
Batschia canescens — Hoary Puccoon, Indian-paint
Batschia caroliniensis — Coastal Plain Puccoon, Hairy Puccoon, Sandhill Puccoon
Befaria racemosa — Tarflower, Flycatcher
Benthamidia florida — Flowering Dogwood
Benthamidia japonica — Kousa Dogwood
Benzoin aestivale — Northern Spicebush, Wild Allspice
Benzoin melissaefolium — Southern Spicebush, Pondberry
Berberis julianiae — Evergreen Barberry, Wintergreen Barberry
Bicuculla canadensis — Squirrel Corn
Bicuculla cucullaria — Dutchman's Britches
Bicuculla eximia — Wild Bleeding Heart
Bignonia radicans — Trumpet-creeper, Trumpet Vine, Cow-Itch Vine
Bilderdykia scandens — Common Climbing Buckwheat
Biltia vaseyi — Pinkshell Azalea
Biota orientalis — Oriental Arborvitae, Tree-of-life
Blephariglottis albiflora — Small White Fringed Orchid
Blephariglottis blephariglottis — Small White Fringed Orchid
Blephariglottis ciliaris — Yellow Fringed Orchid
Blephariglottis conspicua — Large White Fringed Orchid, Southern White Fringed Orchid
Blephariglottis cristata — Crested Fringed Orchid, Golden Fringed Orchid
Blephariglottis grandiflora — Large Purple Fringed Orchid, Plume-royal
Blephariglottis integrilabia — Monkey-face Orchid, White Fringeless Orchid
Blephariglottis lacera — Green Fringed Orchid, Ragged Fringed Orchid, Ragged Orchid
Blephariglottis peramoena — Purple Fringeless Orchid, Purple Spire Orchid, Pride-of-the-peak
Blephariglottis psycodes — Small Purple Fringed Orchid, Butterfly Orchid
Boechera patens — Spreading Rockcress
Boehmeria drummondiana — False Nettle
Boerhaavia erecta — Erect Spiderling
Bonamia angustifolia — Narrowleaf Dawnflower
Borreria laevis — woodland false buttonweed
Borreria verticillata — Shrubby Buttonweed, Whitehead Broom, Boton Blanco
Botrychium matricariaefolium — Daisyleaf Moonwort
Botrypus lunarioides — Winter Grapefern
Bowlesia septentrionalis — Hoary Bowlesia
Brachiaria ramosa — Browntop Millet, Dixie Signalgrass
Brachychaeta sphacelata — Speckled Goldenrod, False Goldenrod, Limestone Goldenrod
Brachyelytrum erectum var. erectum — Common Shorthusk
Brachyelytrum erectum var. septentrionale — Northern Shorthusk
Brachyelytrum septentrionale — Northern Shorthusk
Bradburya virginiana — Climbing Butterfly-pea, Spurred Butterfly-pea
Brassica campestris — Turnip, Field Mustard, Field Rape, Chinese Cabbage
Brassica rapa — Turnip, Field Mustard, Field Rape, Chinese Cabbage
Bromus hordeaceus — Soft Chess, Lopgrass
Bromus japonicus var. japonicus — Japanese Chess
Bromus japonicus var. porrectus — Japanese Chess
Bromus purgans var. laeviglumis — Common Eastern Brome, Canada Brome
Bromus purgans var. purgans — Common Eastern Brome, Canada Brome
Buddleia davidii — Orange-eye Butterflybush, Summer-lilac
Buddleia lindleyana — Lindley's Butterflybush
Bumelia lanuginosa — Eastern Gum Bumelia, Eastern Gum Bully
Bumelia thornei — Thorne's Bumelia, Swamp Bumelia
Bursa bursa-pastoris — Common Shepherd's Purse
Buxella brachycera — Box Huckleberry
Cacalia diversifolia — Variable-leaf Indian Plantain
Cacalia ovata — Broadleaf Indian Plantain, Ovateleaf Indian Plantain, Ovateleaf Cacalia
Cacalia rugelia — Rugel's Ragwort, Rugelia, Rugel's Indian Plantain
Calamagrostis epigeios — Bushgrass, Feathertop
Calamagrostis epigeios var. georgica — Bushgrass, Feathertop
Calamagrostis porteri — Porter's Reedgrass
Calamintha ashei — Ashe's Savory, Ashe's Calamint, Ohoopee Dunes Wild Basil
Calamintha coccinea — Scarlet Wild Basil, Scarlet Calamint, Red Mint Shrub
Calamintha georgiana — Georgia Savory, Georgia Basil, Georgia Calamint, False Peppermint
Calamintha nepeta ssp. glandulosa — Lesser Calamint, Basil-thyme
Calycanthus floridus var. floridus — Sweetshrub, Carolina Allspice, Strawberry-shrub, Sweet Bubby-bush
Campanula uliginosa — marsh bellflower
Campe barbarea — Common Winter-cress, Yellow Rocket, Creasy
Campe stricta — Common Winter-cress, Yellow Rocket, Creasy
Campe verna — Early Winter-cress, Creasy
Camphora camphora — Camphortree
Camptosorus rhizophyllus — Walking Fern
Campulosus aromaticus — Toothache Grass, Orange Grass
Campulosus floridanus — Florida Toothache Grass, Florida orangegrass
Capnoides flavulum — Yellow Fumitory, Yellow Harlequin, Short-spurred Corydalis
Capnoides halei — Southern Corydalis
Capnoides incisa — Incised Fumewort, Purple Keman
Capnoides micranthum — Slender Corydalis
Capriola dactylon — Bermuda Grass, Scotch Grass
Capsella rubella — Common Shepherd's Purse
Carara didyma — Wart-cress, Lesser Swine-cress
Cardamine arenicola — Sand Bittercress, Small-flowered Bittercress
Cardamine heterophylla — Eastern Slender Toothwort
Cardamine multifida — Dissected Toothwort, Fineleaf Toothwort
Cardamine parviflora — Sand Bittercress, Small-flowered Bittercress
Cardamine rhomboidea — Bulbous Bittercress, Spring Cress
Carduus marianus — Milk-thistle, Blessed-thistle
Carduus nutans ssp. macrolepis — Nodding Thistle, Musk Thistle
Carex asa-grayi — Asa Gray's Sedge
Carex fraseri — Fraser's Sedge, Lily-leaf Sedge
Carex grayii — Asa Gray's Sedge
Carex laevi-vaginata — smoothsheath sedge
Carex laxiflora var. angustifolia — lined sedge
Carex laxiflora var. blanda — eastern woodland sedge
Carex laxiflora var. gracillima — Slender Sedge
Carex laxiflora var. latifolia — White Bear Sedge
Carex laxiflora var. laxiflora — broad looseflower sedge
Carex lunelliana — Heavy Sedge, Pregnant Sedge
Carex nigro-marginata var. muhlenbergii — White-tinged Sedge
Carex nigro-marginata var. nigro-marginata — Black-edged Sedge
Carex pennsylvanica — Pennsylvania Sedge, High Meadow Sedge
Carex varia — White-tinged Sedge
Carex virescens var. swanii — Swan's sedge
Carex vulpinoidea var. ambigua — Yellowfruit Sedge
Carex walteriana var. walteriana — Walter’s Sedge, Pocosin Sedge
Carex willdenovii — Limestone Forest Sedge
Carex willdenovii — Willdenow's Sedge
Carex willdenovii — Southern Willdenow's Sedge
Carex willdenowii var. megarrhyncha — Limestone Forest Sedge
Carphephorus odoratissimus var. odoratissimus — Vanilla-leaf, Deer's-tongue, Pineland Purple
Cartrema americana — Devilwood, Wild Olive
Carya ovata var. australis — Carolina Shagbark Hickory, Southern Shagbark Hickory, Carolina Hickory
Carya ovata var. ovata — Common Shagbark Hickory
Castalia flava — Yellow Water-lily, Banana Water-lily
Castanea alnifolia+ — Common Chinquapin, Chinkapin, Allegheny Chinquapin
Castanea pumila var. ashei — Common Chinquapin, Chinkapin, Allegheny Chinquapin
Catalpa catalpa — Southern Catalpa, Fishbait Tree, Cigar Tree
Cathartolinum floridanum — Florida Yellow Flax, Savanna Flax
Cathartolinum floridanum — Yellow-fruited Yellow Flax, Florida yellow flax
Cathartolinum intercursum — Bicknell's Yellow Flax, sandplain flax
Cathartolinum macrosepalum — Florida Yellow Flax, Savanna Flax
Cathartolinum medium — Texas Yellow Flax, Stiff Yellow Flax, Spreading Flax, Texas Flax
Cathartolinum striatum — Ridgestem Yellow Flax, Ridged Yellow Flax
Cathartolinum virginianum — Virginia Yellow Flax, Woodland Flax
Caulophyllum thalictroides var. giganteum — Northern Blue Cohosh, Giant Blue Cohosh
Celastrus orbiculata — Oriental Bittersweet
Celtis georgiana — Georgia Hackberry, Dwarf Hackberry
Celtis laevigata var. laevigata — Sugarberry, Southern Hackberry, Smooth Hackberry, Lowland Hackberry
Celtis laevigata var. smallii — Small's Hackberry
Celtis mississippiensis — Sugarberry, Southern Hackberry, Smooth Hackberry, Lowland Hackberry
Celtis tenuifolia var. georgiana — Georgia Hackberry, Dwarf Hackberry
Cenchrus compressus — Chinese Fountaingrass, Black Fountaingrass
Cenchrus pauciflorus — Northern Sandspur, Common Sandspur
Cenchrus viridis — slimbristle sandbur
Centaurea biebersteinii — Spotted Knapweed, Bushy Knapweed
Centaurea debeauxii ssp. thuillieri — Meadow Knapweed
Centaurea monctonii — Meadow Knapweed
Centaurea repens — Russian Knapweed
Centaurea transalpina — Tyrol Knapweed, Short-fringed Knapweed
Centella repanda — Centella, Coinleaf, False Pennywort
Cerastium brachypetalum ssp. brachypetalum — Gray Mouse-ear, Gray Mouse-ear Chickweed
Cerastium longepedunculatum — Mouse-ear Chickweed
Cerastium vulgatum — Common Mouse-ear, Mouse-ear Chickweed
Cerasus avium — Mazzard Cherry, Sweet Cherry, Bing Cherry
Chaerophyllum tainturieri var. dasycarpum — Southern Chervil, Wild Chervil, Hairyfruit Chervil
Chaerophyllum teinturièri — Southern Chervil, Wild Chervil, Hairyfruit Chervil
Chaetochloa corrugata — coastal bristlegrass
Chaetochloa geniculata — Perennial Foxtail-grass, Knotroot Bristlegrass, Knotroot Foxtail
Chaetochloa italica — Yellow Foxtail, Italian Millet, Foxtail Millet
Chaetochloa lutescens — Yellow Foxtail
Chaetochloa magna — Saltmarsh Foxtail-grass, Giant Foxtail-grass, Giant Bristlegrass
Chaetochloa verticillata — Hooked Bristlegrass
Chaetochloa viridis — Green Foxtail, Green Bristlegrass
Chamaelirium obovale — Fairywand, Devil's Bit
Chamaenerion angustifolium — Great Willow-herb, Fireweed
Chamaenerion angustifolium ssp. circumvagum — Great Willow-herb, Fireweed
Chamaepericlymenum canadense — Bunchberry, Dwarf Dogwood, Dwarf Cornel
Chamaesyce ingallsii — Southern Seaside Spurge, Dixie Sandmat
Cheilanthes sinuata — Wavy Cloak Fern, Wavy Scaly Cloak Fern
Cheilanthes vestita — Hairy Lipfern
Chelone lyoni — Mountain Turtlehead, Pink Turtlehead, Appalachian Turtlehead
Chenopodium album var. missouriense — Lambsquarters, Pigweed
Chenopodium ambrosioides var. ambrosioides — Mexican-tea, Epazote
Chenopodium ambrosioides var. ambrosioides — Wormseed, Epazote
Chenopodium ambrosioides var. anthelminticum — Wormseed, Epazote
Chiogenes hispidula — Creeping Snowberry, Moxie
Christella normalis — Kunth's Maiden Fern, Southern Shield Fern, Southern Wood Fern
Chrosperma muscaetoxicum — Fly-poison
Chrysanthemum balsamita — Mint-geranium
Chrysopsis camporum var. glandulissima — Nashville Camphorweed
Chrysopsis graminifolia — Grass-leaved Golden-aster, Grassleaf Aster
Chrysopsis graminifolia var. aspera — Grass-leaved Golden-aster, Grassleaf Aster
Chrysopsis graminifolia var. aspera — Pineland Silkgrass, Sticky Golden-aster, Grassleaf Aster, Grass-leaved Golden-aster
Chrysopsis graminifolia var. microcephala — Grass-leaved Golden-aster, Grassleaf Aster
Chrysopsis graminifolia var. microcephala — narrowleaf silkgrass, Grass-leaved Golden-aster, Grassleaf Aster
Chrysopsis oligantha — Narrow-leaved Golden-aster, Few-flowered Golden-aster
Chrysopsis pinifolia — Sandhills Golden-aster, Taylor County Golden-aster
Chrysopsis ruthii — Ruth's Golden-aster
Ciclospermum ammi — Marsh-parsley
Ciclospermum leptophyllum — Marsh-parsley
Cinna arundinacea var. arundinacea — Common Woodreed, Stout Woodreed, Sweet Woodreed
Cinna arundinacea var. inexpansa — Common Woodreed, Stout Woodreed, Sweet Woodreed
Circaea alpina var. alpina — Alpine Enchanter's Nightshade, Smaller Enchanter's Nightshade
Circaea latifolia — Canada Enchanter's Nightshade
Circaea quadrisulcata var. canadensis — Canada Enchanter's Nightshade
Cirsium odoratum — Pasture Thistle
Cissus incisa — Marine-ivy
Cissus verticillata — Thicket Creeper, Woodbine
Citrullus citrullus — Watermelon
Cleistes divaricata var. bifaria — Appalachian Small Spreading Pogonia, Smaller Rosebud Orchid, Upland Spreading Pogonia
Cleistes divaricata var. bifaria — Coastal Plain Small Spreading Pogonia
Cleistes divaricata var. divaricata — Rosebud Orchid, Large Spreading Pogonia
Cleome spinosa — Cleome, Spiderflower, Pinkqueen
Clinopodium nepeta — Lesser Calamint, Basil-thyme
Cochranea anchusaefolia — Clasping Heliotrope
Coeloglossum bracteatum — Long-bracted Orchid, Frog Orchid, Long-bracted Frog Orchid
Coeloglossum viride — Long-bracted Orchid, Frog Orchid, Long-bracted Frog Orchid
Coleosanthus cordifolius — Heartleaf Brickellia, Flyr's False-boneset
Colocasia antiquorum — Elephant's Ear, Taro, Dasheen
Comandra richardsiana — Eastern Bastard Toadflax
Commelina communis var. communis — Asiatic Dayflower, Common Dayflower
Commelina communis var. ludens — Asiatic Dayflower, Common Dayflower
Commelina crispa — Sand Dayflower, Pineland Dayflower
Commelina hasskarlii — Indian Dayflower
Convallaria montana — American Lily-of-the-valley
Convolvulus sepium + — Hedge Bindweed
Convolvulus sepium var. fraterniflorus — Twin-flowered Bindweed, Short-stalk False Bindweed
Convolvulus sericatus — Blue Ridge Bindweed, Silky Bindweed, Downy False Bindweed
Convolvulus sericatus — Catesby's Bindweed, Catesby's False Bindweed
Convolvulus spithamaeus — Shale Bindweed
Convolvulus spithamaeus — Low Bindweed, Upright Bindweed
Coptis groenlandica — Goldthread, Goldenroot
Corallorrhiza maculata — Eastern Spotted Coralroot
Corallorrhiza odontorhiza — Autumn Coralroot
Corallorrhiza wisteriana — Spring Coralroot, Wister's Coralroot
Corculum leptopum — Love-chain, Queen's-jewels, Confederate-vine, Corallita
Corculum leptopus — Love-chain, Queen's-jewels, Confederate-vine, Corallita
Coreopsis cardaminefolia — Plains Coreopsis, Calliopsis, Garden Coreopsis
Coreopsis delphinifolia — Larkspur Coreopsis
Corydalis micrantha var. australis — Southern Corydalis
Corydalis micrantha var. micrantha — Slender Corydalis
Cotinus americanus — American Smoketree
Cotoneaster pyracantha — Pyracantha, Scarlet Firethorn
Cracca hispidula — sprawling hoarypea
Cracca spicata — Spiked Hoarypea, Brown-hair Tephrosia, Tawny Goat's Rue
Cracca virginiana — Virginia Goat's Rue, Devil's Shoestrings
Crataegus ×mohrii — Mohr's Hawthorn
Crataegus ×oreophila — Balsam Mountain Hawthorn
Crataegus ×palmeri — Palmer's Hawthorn
Crataegus ×rufula — Rufous Mayhaw, Florida Mayhaw
Crataegus ×vailiae — Vail’s Hawthorn
Crataegus alabamensis var. alabamensis — Alabama Hawthorn
Crataegus alabamensis var. florens — Mississippi Hawthorn
Crataegus alabamensis var. ravenelii — Ravenel's Hawthorn
Crataegus alabamensis var. teres — Smooth Alabama Hawthorn, Montgomery Hawthorn
Crataegus alleghaniensis var. extraria — Valley Head Hawthorn
Crataegus allegheniensis var. allegheniensis — Allegheny Hawthorn
Crataegus allegheniensis var. ignava — Valley Head Hawthorn
Crataegus allegheniensis var. mira — Allegheny Hawthorn
Crataegus biltmoreana — Biltmore Hawthorn
Crataegus boyntoni — Boynton's Hawthorn
Crataegus collina var. collina — Hillside Hawthorn
Crataegus colonica — Bluffton Hawthorn
Crataegus concinna — Cutleaf Beautiful Hawthorn
Crataegus crocea — Ocala Hawthorn
Crataegus dodgei var. dodgei — Dodge Hawthorn
Crataegus dodgei var. flavida — Dodge Hawthorn
Crataegus egens — Sand Barren Hawthorn
Crataegus engelmannii — hawthorn
Crataegus floridana — Jacksonville Hawthorn
Crataegus fortunata — Yellow-fruited Entangled Hawthorn
Crataegus geniculata — Batesburg hawthorn
Crataegus iracunda var. iracunda — Forest Hawthorn
Crataegus iracunda var. populnea — Forest Hawthorn
Crataegus lassa — Sandhill Hawthorn
Crataegus margarettae — Margaret's Hawthorn
Crataegus meridionalis — Downy Hawthorn
Crataegus monogyna var. monogyna — English Hawthorn, Singleseed Hawthorn
Crataegus munda var. pexa — Woolly Dwarf Hawthorn
Crataegus neobushii — Bush Hawthorn
Crataegus neofluvialis — New River Hawthorn
Crataegus opima — Broadleaved Beautiful Hawthorn
Crataegus pruinosa var. gattingeri — Frosted Hawthorn
Crataegus pruinosa var. gattingeri — Gattinger's Hawthorn
Crataegus pulcherrima var. incilis — Cutleaf Beautiful Hawthorn
Crataegus pyracanthoides — Narrowleaf Cockspur Hawthorn
Crataegus quaesita — Florida Hawthorn
Crataegus reverchonii var. mohrii — Mohr's Hawthorn
Crataegus reverchonii var. palmeri — Palmer's Hawthorn
Crataegus rubella — Little Red Hawthorn
Crataegus sororia var. sororia — Sister Hawthorn
Crataegus sororia var. visenda — Bristol Hawthorn
Crataegus straminea — hawthorn
Crataegus uniflora var. brittonii — Britton's Hawthorn
Crataegus uniflora var. uniflora — Oneflower Hawthorn, Dwarf Haw
Crataegus venusta var. pallens — Birmingham Hawthorn
Crataegus venusta var. venusta — Red Mountain Hawthorn
Crataegus viridis + — Green Hawthorn
Crotalaria brevidens var. intermedia — Slenderleaf Rattlebox
Croton alabamensis — Alabama Croton
Cubelium concolor — Green Violet
Cupressus thyoides — Atlantic White Cedar, Juniper
Cuscuta compacta var. efimbriata — Compact Dodder
Cuscuta glandulosa — Glandular Dodder
Cuscuta gronovii var. latiflora — Common Dodder
Cyanococcus amoenus — Rabbiteye Blueberry, Swamp Blueberry, Rabbitberry
Cyanococcus atrococcus — Hairy Highbush Blueberry, Black Highbush Blueberry
Cyanococcus corymbosus — Smooth Highbush Blueberry
Cyanococcus elliottii — Mayberry, Elliott's Blueberry
Cyanococcus fuscatus — Hairy Highbush Blueberry, Black Highbush Blueberry
Cyanococcus hirsutus — Woollyberry, Hairy Blueberry
Cyanococcus myrsinites var. glaucum — Darrow's Blueberry
Cyanococcus myrsinites var. myrsinites — Southern Evergreen Blueberry
Cyanococcus pallidus — Dryland Blueberry, Lowbush Blueberry, Upland Low Blueberry, Hillside Blueberry
Cyanococcus simulatus — Mountain Highbush Blueberry
Cyanococcus tenellus — Southern Blueberry, Dwarf Blueberry, Small Cluster Blueberry, Narrowleaf Blueberry
Cyanococcus vacillans — Dryland Blueberry, Lowbush Blueberry, Upland Low Blueberry, Hillside Blueberry
Cyanococcus virgatus — Southern Highbush Blueberry, Swamp Highbush Blueberry
Cyclosorus dentatus — Downy Maiden Fern, Soft Fern, Downy Shield Fern
Cynanchum nigrum — Black Swallow-wort, Dog-Strangling Vine
Cynodon dactylon var. dactylon — Bermuda Grass, Scotch Grass
Cynoglossum virginicum — Wild Comfrey
Cynoxylon floridum — Flowering Dogwood
Cynoxylon kousa — Kousa Dogwood
Cynthia dandelion — Colonial Dwarf-dandelion, Potato Dandelion
Cynthia montana — Mountain Dwarf-dandelion, Mountain Cynthia
Cynthia virginica — Orange Dwarf-dandelion, Two-flowered Dwarf-dandelion, Two-flowered Cynthia
Cyperus ferruginescens — Fragrant Flatsedge
Cyperus globosus — Globe Sedge
Cyperus halei — Redroot Flatsedge
Cyperus inflexus — Granite Flatsedge
Cyperus inflexus — Awned Flatsedge
Cyperus multiflorus — Globe Sedge
Cyperus retrofractus — Starburst Flatsedge, Plukenet’s Flatsedge, Plukenet’s Sedge
Cyperus retrofractus var. retrofractus — Starburst Flatsedge, Plukenet’s Flatsedge, Plukenet’s Sedge
Cyperus torreyi — Pineland Flatsedge
Cypripedium calceolus var. parviflorum — Small Yellow Lady's Slipper
Cypripedium parviflorum — Small Yellow Lady's Slipper
Cypripedium pubescens — Large Yellow Lady's Slipper
Cystopteris ×tennesseensis — Tennessee Bladder Fern
Cystopteris fragilis var. fragilis — Fragile Fern, Brittle Fern
Cystopteris fragilis var. mackayi — Mackay's Bladder Fern, Mackay's Fragile Fern
Cystopteris fragilis var. protrusa — Lowland Bladder Fern, Spreading Bladder Fern
Cystopteris fragilis var. tennesseensis — Tennessee Bladder Fern
Dasystephana parvifolia — Coastal Plain Gentian, Catesby's Gentian, Elliott's Gentian
Dasystephana porphyrio — Pinebarren Gentian, Autumn Gentian
Dasystephana villosa — Striped Gentian
Dasystoma macrophylla — Mullein Foxglove
Decachaena baccata — Black Huckleberry, Crackleberry
Decachaena frondosa — Dangleberry
Decachaena tomentosa — Woolly Dangleberry, Hairy Dangleberry
Decachaena ursina — Bear Huckleberry, Buckberry, Mountain Huckleberry
Decemium appendiculatum — Biennial Waterleaf
Delphinium carolinianum var. carolinianum — Prairie Larkspur, Carolina Larkspur, Blue Larkspur
Delphinium carolinianum var. carolinianum — Glade Larkspur
Dendropogon usneoides — Spanish Moss
Dentaria diphylla — Broadleaf Toothwort, Crinkleroot, Pepperroot
Dentaria heterophylla — Eastern Slender Toothwort
Dentaria laciniata — Cutleaf Toothwort
Dentaria multifida — Dissected Toothwort, Fineleaf Toothwort
Deparia japonica — Japanese false spleenwort
Deringa canadensis — Honewort
Deschampsia caespitosa var. caespitosa — Tufted Hairgrass
Desmodium paniculatum var. dillenii — Tall Tick-trefoil, Dillen's Tick-trefoil
Desmodium paniculatum var. dillenii — Perplexing Tick-trefoil, Dillen's Tick-trefoil
Desmothamnus lucidus — Shining Fetterbush, Lyonia, Hemleaf
Deutzia crenata — Deutzia, Pride-of-Rochester
Dianthera americana — American Water-willow
Diaphoranthema recurvata — Ball-moss, Bunch-moss
Dicerandra linearifolia — coastal plain balm
Dichanthelium aciculare ssp. aciculare — Needleleaf Witchgrass, Needleleaf Rosette Grass
Dichanthelium aciculare ssp. angustifolium — Sandy Woods Witchgrass
Dichanthelium aciculare ssp. fusiforme — Spindle-fruited Witchgrass
Dichanthelium aciculare ssp. neuranthum — Nerved Witchgrass
Dichanthelium acuminatum ssp. longiligulatum — Long-ligule Witchgrass
Dichanthelium acuminatum var. implicatum — Woolly Rosette Grass, Woolly Witchgrass, Tapered Rosette Grass, Woolly Panicum
Dichanthelium dichotomum ssp. lucidum — Bog Witchgrass
Dichanthelium dichotomum ssp. lucidum — Peaty Witchgrass
Dichanthelium dichotomum ssp. mattamuskeetense — Ringed Witchgrass
Dichanthelium dichotomum ssp. mattamuskeetense — Mattamuskeet Witchgrass
Dichanthelium dichotomum ssp. roanokense — Blue Witchgrass
Dichanthelium dichotomum ssp. yadkinense — Spotted-sheath Witchgrass
Dichanthelium leucoblepharis var. glabrescens — Hairless Witchgrass
Dichanthelium leucoblepharis var. pubescens — Rough-hairy Witchgrass
Dichanthelium oligosanthes ssp. oligosanthes — Few-flowered Witchgrass
Dichondra repens var. carolinensis — Carolina Ponyfoot
Digitaria sanguinalis var. ciliaris — Southern Crabgrass
Digitaria sanguinalis var. sanguinalis — Hairy Crabgrass, Northern Crabgrass
Diodella teres — Poor-joe, Rough Buttonweed
Dioscorea hirticaulis — Common Wild Yam, Streamhead Yam
Dioscorea villosa var. hirticaulis — Common Wild Yam, Streamhead Yam
Diplaziopsis pycnocarpa — Glade Fern
Diplazium acrostichoides — Silvery Glade Fern, Silvery Spleenwort
Diplazium japonicum — Japanese false spleenwort
Diplostachyon ludovicianum — Louisiana Spikemoss, Gulf Spikemoss
Diplostachyum apodum — Meadow Spikemoss
Dipsacus fullonum ssp. sylvestris — Wild Teasel, Common Teasel
Disakisperma dubia — Green Sprangletop
Ditremexa medsgeri — Maryland Wild Senna
Dracocephalum leptophyllum — Tidal Marsh Obedient-plant, Swamp Obedient-plant, Narrowleaf Obedient-plant, False Dragonhead
Drosera filiformis var. filiformis — Threadleaf Sundew
Drosera filiformis var. tracyi — Tracy's Sundew
Drymaria cordata — Heartleaf Drymary, West Indian Chickweed
Dryopteris goldiana ssp. celsa — Log Fern
Dryopteris hexagonoptera — Broad Beech Fern
Dryopteris noveboracensis — New York Fern
Dryopteris setigera — Mariana Maiden Fern, Swordfern
Dryopteris simulata — Bog Fern, Massachusetts Fern
Dryopteris spinulosa var. intermedia — Evergreen Wood-fern, Fancy Fern, Intermediate Wood-fern
Dryopteris thelypteris var. pubescens — Marsh Fern
Echinacea angustifolia var. tennesseensis — Tennessee Purple Coneflower
Echinacea pallida var. simulata — Prairie Purple Coneflower, Wavy-leaf Purple Coneflower
Echinochloa crus-galli ssp. crus-galli — Rough Barnyard Grass
Echinochloa crus-galli ssp. crus-galli — Barnyard Grass
Echinochloa crus-galli ssp. crus-galli — Rough Barnyard Grass
Echinochloa crus-pavonis — gulf cockspur grass
Echinochloa microstachya — Rough Barnyard Grass
Echinochloa muricata — Rough Barnyard Grass
Echinodorus cordifolius ssp. cordifolius — Creeping Burhead, Creeping Water-plantain
Elaeagnus multiflorus — Cherry Elaeagnus, Cherry Silverberry
Elaeagnus umbellatus — Autumn Olive, Spring Silverberry
Eleocharis ovata — Blunt Spikerush
Eleocharis prolifera — Baldwin’s Spikerush, Slender Spikerush, Roadgrass, Hair Grass
Endorima atropurpurea — Purple-disk Honeycomb-head, Bog Honeycomb-head, Purple Balduina, Purple Honeycomb-head
Endorima uniflora — Savanna Honeycomb-head, Yellow Balduina
Epibaterium carolinum — Carolina Moonseed, Coralbeads, Carolina Snailseed, Red Moonseed
Epidendrum conopseum var. conopseum — Green-fly Orchid
Epilobium adenocaulon var. adenocaulon — American Willow-herb
Eragrostis hirsuta var. hirsuta — Bigtop Lovegrass
Eragrostis hirsuta var. laevivaginata — Bigtop Lovegrass
Eragrostis multicaulis — India Lovegrass
Erechtites hieraciifolia var. hieraciifolia — Fireweed, Pilewort
Erianthus brevibarbis var. contortus — Bent-awn Plumegrass
Erianthus coarctatus var. coarctatus — Short-bearded Plumegrass
Erianthus coarctatus var. coarctatus — Brown Plumegrass
Erianthus coarctatus var. elliottianus — Short-bearded Plumegrass
Erianthus coarctatus var. elliottianus — Brown Plumegrass
Erianthus divaricatus — Silver Plumegrass
Erianthus ravennae — Ravenna Grass, Hardy Pampas Grass
Erianthus saccharoides — Sugarcane Plumegrass, Giant Plumegrass
Erigeron canadensis — Common Horseweed
Erigeron pusillus — Southern Horseweed
Erigeron strigosus var. beyrichii — Daisy Fleabane, Common Rough Fleabane, Prairie Fleabane, Slender Daisy Fleabane
Eriochloa michauxii — Longleaf Cupgrass
Eruca eruca — Arugula, Garden Rocket, Rocket-salad, Salad-rocket
Eruca sativa — Arugula, Garden Rocket, Rocket-salad, Salad-rocket
Eryngium baldwini — Baldwin's eryngo, Baldwin's button snakeroot
Eryngium ravenelii — Ravenel's Eryngo
Eryngium synchaetum — Southern Rattlesnake-master
Eryngium virginianum — Marsh Eryngo
Erysimum officinale — Hedge Mustard
Erythrina arborea — Coral Bean, Cardinal-spear
Euonymus alata — Winged Burning Bush, Winged Euonymus, Winged Wahoo
Euonymus americana — Hearts-a-bustin', Strawberry-bush
Euonymus atropurpurea var. atropurpurea — American Wahoo, Burning Bush
Euonymus japonica — Japanese Spindletree, Japanese Euonymus
Euonymus kiautschovica — Wintercreeper, Climbing Euonymus, Chinese Spindle-tree
Euonymus obovata — Running Strawberry-bush, Trailing Strawberry Bush, Trailing Wahoo
Eupatoriadelphus dubius — Coastal Plain Joe Pye Weed, Three-nerved Joe Pye Weed
Eupatoriadelphus fistulosus — Hollow-stem Joe Pye Weed
Eupatoriadelphus maculatus — Spotted Joe Pye Weed
Eupatoriadelphus purpureus — Purple-node Joe Pye Weed
Eupatoriadelphus purpureus — Carolina Joe Pye Weed
Eupatoriadelphus steelei — Appalachian Joe Pye Weed, Steele's Joe Pye Weed
Eupatorium album var. glandulosum — White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium
Eupatorium album var. vaseyi — Vasey's Eupatorium
Eupatorium maculatum var. maculatum — Spotted Joe Pye Weed
Eupatorium purpureum var. purpureum — Purple-node Joe Pye Weed
Eupatorium purpureum var. purpureum — Carolina Joe Pye Weed
Eupatorium roanensis — Appalachian White Snakeroot, Appalachian Milk-poison
Eupatorium rotundifolium var. saundersii — Rough Boneset, Ragged Eupatorium
Eupatorium rugosum var. roanense — Appalachian White Snakeroot, Appalachian Milk-poison
Eupatorium sessilifolium — Upland Boneset, Sessile-leaf Eupatorium
Eupatorium sessilifolium — Britton's Eupatorium
Eupatorium sessilifolium — Godfrey's Thoroughwort
Eupatorium steelei — Appalachian Joe Pye Weed, Steele's Joe Pye Weed
Euphorbia apocynifolia — False Flowering Spurge, Southeastern Flowering Spurge, Southern Flowering Spurge
Euphorbia arundelana — Carolina Ipecac, Wild Ipecac
Euphorbia esula ssp. esula — Wolf's-milk, Leafy Spurge
Euphorbia lathyrus — Caper Spurge, Myrtle Spurge, Mole Plant
Euphorbia preslii — Eyebane
Euthamia graminifolia — Marsh Flat-topped Goldenrod
Euthamia graminifolia — Flat-topped Goldenrod
Euthamia minor — Slender Flat-topped Goldenrod
Euthamia tenuifolia — Slender Flat-topped Goldenrod
Euthamia tenuifolia — Marsh Flat-topped Goldenrod
Fagopyrum sagittatum — Buckwheat
Fallopia aubertii — Lace Vine, Silver-lace-vine, China Fleece-vine
Fallopia japonica — Japanese Knotweed
Fallopia sachalinensis — Giant Knotweed, Sachaline
Festuca arundinacea — Tall Fescue, Alta Fescue
Festuca ovina var. ovina — Hard Fescue
Festuca perennis — Italian Ryegrass, Annual Ryegrass
Festuca perennis — English Rye-grass, Perennial Rye-grass
Festuca pratensis — Meadow Fescue
Festuca temulentum — Darnel rye-grass
Ficus microcarpa — Laurel Fig
Filipendula ulmaria var. ulmaria — Queen-of-the-Meadow, Meadowsweet
Fimbristylis harperi — Carolina Fimbry
Fissipes acaulis — Pink Lady's Slipper, Mocassin Flower
Foeniculum foeniculum — Fennel
Forestiera globularis — Florida-privet
Forestiera porulosa — Florida-privet
Forestiera pubescens — Godfrey's Forestiera
Fothergilla gardeni — Coastal Witch-alder, Dwarf Witch-alder, Small Witch-alder, Fothergilla
Fragaria virginiana var. virginiana — Wild Strawberry
Fumaria incisa — Incised Fumewort, Purple Keman
Funastrum angustifolium — Swallow-wort, Sand-vine
Gaillardia lanceolata var. lanceolata — Sandhills Gaillardia, Rayless Blanketflower, Lanceleaf Blanketflower
Gaillardia picta — Beach Blanket Flower, Gaillardia, Firewheel, Indian Blanket
Galactia glabella — Smooth Milkpea, Common Milkpea
Galactia mohlenbrockii var. mohlenbrockii — Cluster-pea, Boykin's Clusterpea
Galarhoeus commutatus — Woodland Spurge, Tinted Spurge, Wood Spurge
Galarhoeus cyparissias — Cypress Spurge, Graveyard Spurge
Galeorchis spectabilis — Showy Orchis
Galium claytonii — Marsh Bedstraw, Dye Bedstraw
Galium mollugo var. erectum — white bedstraw
Galium mollugo var. mollugo — False Baby's Breath, Smooth Bedstraw, Hedge Bedstraw, Wild Madder
Garciana cochinchinensis — Woolly Frogsmouth, Frogmouth, Woolly Waterlily
Gaylussacia dumosa var. dumosa — Southern Dwarf Huckleberry
Gentiana flavida — Pale Gentian
Geobalanus oblongifolius — Gopher-apple, Ground-oak
Geobalanus pallidus — Gopher-apple, Ground-oak
Gerardia aphylla — Scale-leaf Gerardia, Scale-leaf Agalinis
Gerardia fasciculata — Gerardia, beach false foxglove
Gerardia flava + — Smooth False-foxglove, Eastern Smooth Oak-leach
Gerardia laevigata — Appalachian Oak-leach, Smooth False-foxglove
Gerardia linifolia — Gerardia, flaxleaf false foxglove
Gerardia maritima — Seaside Gerardia
Gerardia obtusifolia — Ten-lobe False Foxglove, Gerardia
Gerardia patula — Cumberland Oak-leach, Spreading Yellow Foxglove
Gerardia pectinata — Southern Oak-leach, Sticky False-foxglove
Gerardia pedicularia + — Fern-leaf False-foxglove, Annual Oak-leach
Gerardia purpurea — Purple Gerardia, purple false foxglove
Gerardia racemulosa — Gerardia, beach false foxglove
Gerardia setacea — Sandhills Gerardia, Threadleaf Gerardia, threadleaf false foxglove
Gerardia tenuifolia var. tenuifolia — Slender Gerardia, Thin-leaved Agalinis, slenderleaf false foxglove
Gerardia virginica — Downy False-foxglove, Downy Oak-leach, Virginia Oak-leach
Geum hirsutum — Pale Avens, Cream Avens
Gilia rubra — Standing-cypress
Glandularia tenuisecta — Moss Vervain, South American Vervain, Moss Verbena
Globifera umbrosa — Shade Mudflower
Glycine apios — Common Groundnut
Gnaphalium calviceps — Narrowleaf Cudweed, Caribbean Everlasting
Gnaphalium calviceps — Narrowleaf Cudweed
Gnaphalium margaritaceum — Pearly Everlasting
Gnaphalium purpureum Linnaeus var. purpureum — Wandering Cudweed, Pennsylvania Everlasting
Gnaphalium spathulatum — Wandering Cudweed, Pennsylvania Everlasting
Gonolobus carolinensis — Carolina Spinypod, Climbing Milkweed, Climbing Milkvine
Gonolobus decipiens — Deceptive Spinypod
Gonolobus gonocarpos — Eastern Anglepod
Gonolobus laevis — Bluevine, Sandvine, Honeyvine
Gonolobus obliquus — Northern Spinypod, Limerock Milkvine, Climbing Milkvine
Gordonia alatamaha — Franklinia, Franklin Tree, Lost Gordonia
Gossypium herbaceum — Upland Cotton
Grossularia curvata — Granite Gooseberry
Grossularia cynosbati — Prickly Gooseberry, Dogberry
Grossularia echinella — Miccosukee Gooseberry, Spiny Gooseberry, Florida Gooseberry
Grossularia rotundifolia — Roundleaf Gooseberry, Appalachian Gooseberry
Guilandina crista — Gray Nicker, Holdback
Gymnadeniopsis clavellata — Small Green Wood Orchid, Club-spur Orchid, Woodland Orchid, Streamhead Orchid
Gymnadeniopsis integra — Yellow Fringeless Orchid, Golden Frog Orchid, Golden Fringeless Orchid
Gymnadeniopsis nivea — Snowy Orchid, Bog-spike
Gymnopteris hispida — Copper Fern
Gyrotheca tinctoria — Redroot
Habenaria blephariglottis var. conspicua — Large White Fringed Orchid, Southern White Fringed Orchid
Habenaria fimbriata — Large Purple Fringed Orchid, Plume-royal
Halesia monticola — Mountain Silverbell
Hartmannia speciosa — Showy Evening Primrose, White Evening Primrose, Pink-ladies
Hedeoma hispidum — Rough Pennyroyal
Hedera helix ssp. helix — English Ivy, Common Ivy
Hedera helix ssp. hibernica — Atlantic Ivy, Irish Ivy
Hedera helix var. hibernica — Atlantic Ivy, Irish Ivy
Hedyotis australis — Southern Bluet
Hedyotis boscii — Bosc's Bluet
Hedyotis caerulea — Quaker Ladies, Common Bluet, Innocence
Hedyotis canadensis — Canada Bluet
Hedyotis corymbosa — Diamond-flower
Hedyotis crassifolia — Tiny Bluet, Small Bluet
Hedyotis longifolia — Eastern Longleaf Bluet
Hedyotis longifolia — Diffuse-branched Bluet, Narrow-leaved Houstonia
Hedyotis longifolia — Granite Dome Bluet
Hedyotis michauxii — Thyme-leaved Bluet, Appalachian Bluet, Prostrate Bluet, Marsh Bluet
Hedyotis nigricans var. nigricans — Diamond-flower, Glade Bluet
Hedyotis nuttalliana — Diffuse-branched Bluet, Narrow-leaved Houstonia
Hedyotis procumbens — Roundleaf Bluet, Creeping Bluet, Trailing Bluet, Fairy-footprints
Hedyotis purpurea — Summer Bluet, Purple Bluet, Woodland Bluet
Hedyotis purpurea var. calycosa — Midwestern Summer Bluet, Venus's Pride
Hedyotis purpurea var. montana — Roan Mountain Bluet
Helenium autumnale var. parviflorum — Common Sneezeweed
Helenium helenium — Sneezeweed, Spring Helenium
Helenium tenuifolium — Bitterweed
Helianthus cucumerifolius — Cucumber-leaf Sunflower
Helianthus dowellianus — Naked-stem Sunflower
Helianthus laetiflorus var. laetiflorus — cheerful sunflower
Helianthus laetiflorus var. rigidus — Stiff Sunflower
Helianthus occidentalis var. dowellianus — Naked-stem Sunflower
Helianthus rigidus — Stiff Sunflower
Hemerocallis flava — Yellow Daylily, Lemon Daylily
Hepatica acuta — Sharp-lobed Hepatica, Sharp-lobed Liverleaf
Hepatica hepatica — Round-lobed Hepatica, Round-lobed Liverleaf
Heracleum sphondylium ssp. montanum — Cow Parsnip, American Hogweed, Masterwort
Heracleum sphondylium var. lanatum — Cow Parsnip, American Hogweed, Masterwort
Herpothamnus crassifolius — Creeping Blueberry
Heterotheca aspera — Pineland Silkgrass, Sticky Golden-aster, Grassleaf Aster, Grass-leaved Golden-aster
Heterotheca correllii — Grass-leaved Golden-aster, Grassleaf Aster
Heterotheca graminifolia — Grass-leaved Golden-aster, Grassleaf Aster
Heterotheca hyssopifolia var. subulata — scrubland golden-aster
Heterotheca oligantha — Narrow-leaved Golden-aster, Few-flowered Golden-aster
Heterotheca pilosa — Soft Golden-aster, Hairy Golden-aster
Heterotheca ruthii — Ruth's Golden-aster
Heterotheca subaxillaris ssp. latifolia — Common Camphorweed
Heterotheca subaxillaris ssp. subaxillaris — Dune Camphorweed
Heterotheca subulata — scrubland golden-aster
Hexastylis callifolia — heartleaf
Hexastylis memmingeri — Virginia Heartleaf, Virginia Ginger
Hexastylis ruthii — Appalachian Little Brown Jug
Hexastylis virginicum — Heartleaf Ginger, Variable-leaf Heartleaf, Wild Ginger
Hibiscus ... — Wax Mallow
Hibiscus ... — Turk’s-cap Mallow, Mazapan
Hibiscus drummondii — Wax Mallow, Turk's-cap Mallow
Hibiscus esculentus — Okra, Gumbo
Hibiscus lasiocarpus — Western Rose-mallow
Hibiscus moscheutos ssp. lasiocarpos — Western Rose-mallow
Hibiscus moscheutos ssp. moscheutos — Eastern Rose-mallow, Swamp Rose-mallow, Wild Cotton
Hibiscus palustris — Eastern Rose-mallow, Swamp Rose-mallow, Wild Cotton
Hibiscus pentacarpos — Southern Seashore Mallow, Seashore Marshmallow, Virginia Saltmarsh Mallow
Hicora texana — Black Hickory
Hicoria alba — Mockernut Hickory, White Hickory
Hicoria aquatica — Water Hickory, Bitter Pecan
Hicoria carolinae-septentrionalis — Carolina Shagbark Hickory, Southern Shagbark Hickory, Carolina Hickory
Hicoria cordiformis — Bitternut Hickory
Hicoria floridana — Scrub Hickory
Hicoria glabra var. glabra — Pignut Hickory
Hicoria laciniosa — Big Shellbark Hickory, Kingnut Hickory
Hicoria microcarpa — Red Hickory, Sweet Pignut Hickory
Hicoria myristiciformis — Nutmeg Hickory
Hicoria ovata — Common Shagbark Hickory
Hicoria pallida — Sand Hickory, Pale Hickory
Hicoria pecan — Pecan
Hieracium flagellare — Whiplash Hawkweed
Hieracium praealtum var. decipiens — Smooth Hawkweed, Glaucous King-devil
Hieracium venosum + — Rattlesnake Weed, Veiny Hawkweed, Rattlesnake Hawkweed
Hippochaete hyemalis ssp. affinis — Tall Scouring Rush, River Scouring Rush
Holcus halepensis — Johnsongrass
Holcus sorghum — Sorghum, Milo, Broomcorn, Sorgo
Holubiella lunarioides — Winter Grapefern
Homalocenchrus lenticularis — Catchfly Cutgrass
Homalocenchrus oryzoides — Rice Cutgrass
Homalocenchrus virginicus — White Cutgrass, Whitegrass
Houstonia lanceolata — Midwestern Summer Bluet, Venus's Pride
Houstonia minima — Tiny Bluet, Small Bluet
Hudsonia ericoides ssp. ericoides — Northern Golden-heather
Hudsonia ericoides ssp. montana — Mountain Golden-heather
Hugeria erythrocarpa — Bearberry, Highbush Cranberry, Mountain Cranberry
Hydrangea arborescens var. discolor — Ashy Hydrangea
Hydrangea species 1 — Climbing Hydrangea, Woodvamp, Decumaria
Hydrocotyle canbyi — whorled marsh-pennywort
Hydrophyllum virginicum — Virginia Waterleaf, Eastern Waterfleaf
Hymenocallis caroliniana — Rocky-shoals Spiderlily, Catawba Spiderlily, Carolina Spiderlily, Cahaba Lily
Hymenocallis caroliniana — Hammock Spiderlily, Woodland Spiderlily, Northern Spiderlily
Hypericum aureum — Golden St. Johnswort
Hypericum denticulatum var. recognitum — Strict St. Johnswort
Hypericum interior — Interior Bushy St. Johnswort
Hypericum sphaerocarpum var. turgidum — Barrens St. Johnswort
Hypericum splendens — Golden St. Johnswort
Hypericum tubulosum var. tubulosum — Southern Marsh St. Johnswort
Hypericum tubulosum var. walteri — Walter’s Marsh St. Johnswort
Hypericum turgidum — Barrens St. Johnswort
Hyptis radiata — Musky Mint, Cluster Bushmint
Ibidium beckii — Little Ladies'-tresses, Little Pearl-twist
Ibidium cernuum — Nodding Ladies'-tresses
Ibidium floridanum — Florida Ladies'-tresses
Ibidium gracile — Southern Slender Ladies'-tresses
Ibidium laciniatum — Lace-lip Ladies'-tresses, Lace-lip Spiral Orchid
Ibidium longilabre — Long-lipped Ladies'-tresses, Giant Spiral Orchid
Ibidium ochroleucum — Yellow Ladies-tresses, Yellow Nodding Ladies'-tresses
Ibidium odoratum — Fragrant Ladies'-tresses, Marsh Ladies'-tresses
Ibidium ovale — Lesser Ladies'-tresses, Oval Ladies'-tresses
Ibidium ovale — Oval Ladies'-tresses
Ibidium plantagineum — Shining Ladies'-tresses
Ibidium praecox — Grass-leaved Ladies'-tresses, Giant Ladies'-tresses
Ibidium praecox — Woodland Ladies'-tresses, Pale Green Ladies'-tresses
Ibidium vernale — Spring Ladies'-tresses
Ilex ambigua var. monticola — Mountain Holly, Mountain Winterberry
Ilex beadlei — Carolina Holly
Ilex longipes var. cuthbertii — Cuthbert Holly
Ilex monticola — Mountain Holly, Mountain Winterberry
Impatiens biflora — Spotted Jewelweed, Spotted Touch-me-not, Orange Jewelweed, Orange Touch-me-not
Imperata brasiliensis — Cogongrass, Bloodroot Grass, Brazilian Satintail
Ionoxalis violacea — Violet Wood-sorrel
Ipomoea coccinea var. hederifolia — Scarlet Creeper
Ipomoea pes-caprae — Railroad Vine, Bay Hops, Bay Winders, Goat's-foot
Iris flavescens — German Iris, Fleur-de-Lys
Iris foliosa — Short-stem Iris, Lamance Iris, Zigzag Iris
Iris mississippiensis — Short-stem Iris, Lamance Iris, Zigzag Iris
Isanthus brachiatus — Glade Blue Curls, False Pennyroyal, Fluxweed
Isnardia palustris — Common Water-purslane, Marsh Purslane
Isnardia repens — Creeping Seedbox
Isoetes caroliniana — Mountain Quillwort, Carolina Quillwort
Isoetes engelmannii var. caroliniana — Mountain Quillwort, Carolina Quillwort
Isoetes engelmannii var. engelmannii — Appalachian Quillwort
Isoetes engelmannii var. engelmannii — Engelman's Quillwort
Isoetes engelmannii var. engelmannii — Wintergreen Quillwort, Winter Quillwort, evergreen quillwort
Isoetes engelmannii var. georgiana — Appalachian Quillwort
Isoetes riparia var. amesii — Shore Quillwort
Isoetes virginica var. piedmontana — Piedmont Quillwort
Isopappus divaricatus — Scratch-daisy, Goldenweed
Isotrema macrophylla — Dutchman's Pipe, Pipevine
Isotrema tomentosa — Woolly Pipevine, Woolly Dutchman's Pipe
Jacobaea vulgaris — Tansy Ragwort
Juncoides carolinae — Carolina woodrush
Juncoides saltuense — hairy woodrush
Juncus platyphyllus — Forked Rush
Juncus tenuis var. dichotomus — Forked Rush
Jussiaea decurrens — Wingstem Water-primrose
Justicia ovata var. angusta — Pineland Water-willow, Narrowleaf Water-willow
Kali tragus ssp. ponticum — Southern Saltwort, Carolina Saltwort
Kalmia angustifolia var. angustifolia — Northern Sheepkill, Sheep-laurel, Lamb-kill
Kalmia angustifolia var. carolina — Southern Sheepkill, Carolina Wicky, Carolina Sheep-laurel, Carolina Bog Myrtle
Kalopanax pictus — Castor Aralia
Koellia — Mountain-mint
Koellia albescens — White-leaved Mountain-mint, White Mountain-mint
Koellia aristata — awned mountain-mint
Koellia beadlei — Beadle's Mountain-mint
Koellia clinopodioides — basil mountain-mint
Koellia flexuosa — Narrowleaf Mountain-mint, Slender Mountain-mint, Savanna Mountain-mint
Koellia hyssopifolia — Savanna Mountain-mint
Koellia incana — Hoary Mountain-mint, White Mountain-mint
Koellia leptodon — whorled mountain-mint
Koellia leptodon — Torrey's Mountain-mint
Koellia montana — Appalachian Mountain-mint
Koellia mutica — Short-toothed Mountain-mint, Downy Mountain-mint
Koellia nuda — Smooth Mountain-mint
Koellia verticillata — whorled mountain-mint
Koellia virginiana — Virginia Mountain-mint
Krameria spathulata — Trailing Ratany, Sandspur, Spreading Ratanay, trailing krameria
Kraunhia frutescens — American Wisteria, Swamp Wisteria, Atlantic Wisteria
Kraunhia macrostachya — American Wisteria, Swamp Wisteria, Atlantic Wisteria
Krigia cespitosa var. cespitosa — Opposite-leaf Dwarf-dandelion
Lacinaria spicata — Dense Blazing-star, Mountain Blazing-star, Florist's Gayfeather, Dense Gayfeather
Laciniaria chapmanii — Chapman's Blazing-star
Laciniaria chlorolepis — Garber’s Blazing-star
Laciniaria garberi — Garber’s Blazing-star
Lactuca floridana var. villosa — Woodland Lettuce
Lactuca serriola var. integrata — Prickly Lettuce
Lantana depressa — Florida Lantana
Lapithea capitata — Cumberland Rose-gentian, Appalachian Rose-gentian
Lappula virginiana — Virginia Stickseed
Lasiococcus dumosus — Southern Dwarf Huckleberry
Lasiococcus mosieri — Mosier's Huckleberry, Hirsute Huckleberry
Lavauxia triloba — Stemless Evening Primrose
Lecticula resupinata — Northeastern Bladderwort, Resupinate Bladderwort, Lavender Bladderwort
Leiophyllum buxifolium var. prostratum — Sand-myrtle, Mountain Myrtle
Leontodon erythrospermum — Red-seeded Dandelion
Leontodon taraxacum — Common Dandelion
Leptamnium virginianum — Beechdrops
Leptilon canadense — Common Horseweed
Leptoglottis floridana — Florida Sensitive-briar, Sensitive Vine, Powderpuff Mimosa
Leptoglottis microphylla — Eastern Sensitive-briar
Lespedeza hirta ar. intercursa — Narrow-leaved Lespedeza, Narrowleaf Bush-clover
Lespedeza stuvei — Velvety Lespedeza, Stueve's Bush-clover
Leucaena glauca — White Leadtree, Leucaena, Jumbie-bean
Leucanthemum leucanthemum — Ox-eye Daisy, Common Daisy
Leucothoe acuminata — Tall Fetterbush, Florida Leucothoe, Agarista, Pipe-plant
Leucothoe catesbaei — Mountain Doghobble, Switch-ivy
Leucothoe editorum — Mountain Doghobble, Switch-ivy
Liatris elegans var. flabellata — Common Elegant Blazing-star
Liatris graminifolia var. virgata — wand blazing star
Liatris spheroidea — Rough Blazing-star
Liatris turgida — Smooth Blazing-star, Heller's Blazing-star
Ligustrum obtusifolium var. amurense — Amur Privet
Lilaeopsis attenuata — Carolina Lilaeopsis
Lilaeopsis lineata — Marsh Lilaeopsis
Lilium canadense ssp. michiganense — Michigan Lily
Lilium carolinianum — Carolina Lily
Lilium tigrinum — Tiger Lily
Limonium nashii + — Carolina Sea-lavender
Linaria canadensis var. canadensis — Oldfield Toadflax, Common Toadflax
Linaria canadensis var. texana — Texas Toadflax
Linaria linaria — Butter-and-eggs, Yellow Toadflax, Wild-snapdragon
Linaria texana — Texas Toadflax
Lindera benzoin var. pubescens — Northern Spicebush, Wild Allspice
Lindernia anagallidea — Yellowseed False Pimpernel
Lindernia dubia var. anagallidea — Yellowseed False Pimpernel
Lindernia saxicola — Flatrock Pimpernel, Riverbank Pimpernel, False Pimpernel
Linum floridanum — Yellow-fruited Yellow Flax, Florida yellow flax
Liriope spicatum — Liriope, Creeping Lilyturf
Lobelia batsonii — Batson's Lobelia, Sandhills Lobelia
Lolium arundinaceum — Tall Fescue, Alta Fescue
Lolium pratense — Meadow Fescue
Lonicera bella — Bell's Honeysuckle, Pretty Honeysuckle
Lonicera sempervirens var. hirsutula — Coral Honeysuckle, Woodbine, Trumpet Honeysuckle
Lonicera sempervirens var. sempervirens — Coral Honeysuckle, Woodbine, Trumpet Honeysuckle
Ludwigia grandiflora — Showy Water-primrose
Ludwigia hexapetala — Common Water-primrose
Ludwigia natans — Creeping Seedbox
Ludwigiantha arcuata — piedmont primrose-willow
Lupinus nuttallii — Southern Sundial Lupine
Lupinus perennis var. gracilis — Southern Sundial Lupine
Lupinus perennis var. perennis — Northern Sundial Lupine
Lycium carolinianum var. quadrifidum — Christmas-berry, Carolina Matrimony-vine
Lycopodium cernuum — Nodding Clubmoss, Staghorn Clubmoss
Lycopodium obscurum var. isophyllum — Pennsylvania Ground-pine, Hickey's Tree-clubmoss
Lycopodium prostratum — Featherstem Clubmoss, Prostrate Bog Clubmoss
Lycopodium selago var. appressum — Appalachian Firmoss, Appalachian Fir-clubmoss
Lycopsis arvensis — Small Bugloss, Alkanet
Lycopus velutinus — Stalked Bugleweed
Lyonia palustris — Swallow-wort, Sand-vine
Lysias orbiculata — Large Round-leaved Orchid, Dinner-plate Orchid
Magnolia cordata — Yellow Cucumber-tree, Showy Cucumber Magnolia
Magnolia fraseri var. pyramidata — Pyramid Magnolia
Magnolia macrophylla var. ashei — Ashe's Magnolia
Malus angustifolia var. puberula — Southern Crabapple, Wild Crabapple
Malus sylvestris — Common Apple
Malvaviscus arboreus var. mexicanus — Wax Mallow
Malvaviscus arboreus var. penduliflorus — Turk’s-cap Mallow, Mazapan
Manisuris exaltata — Itch-grass
Mappia origanoides — Stone-mint, American Dittany, Wild-oregano
Marginaria polypodioides — Resurrection Fern, Scaly Polypody
Mariana mariana — Milk-thistle, Blessed-thistle
Marilaunidium jamaicense — Jamaica Weed
Mariscus jamaicensis — Sawgrass
Marshallia graminifolia ssp. tenuifolia — Grassleaf Barbara's-buttons
Matelea suberosa — Eastern Anglepod
Matricaria parthenium — Feverfew
Matricaria perforata — Scentless Chamomile, False Chamomile
Mayaca aubletii — Bogmoss
Mazus reptans — Creeping Mazus, Miquel's mazus
Meibomia acuminata — Heartleaf Tick-trefoil, Clusterleaf Tick-trefoil, Pointed-leaved Tick-Trefoil
Meibomia arenicola — Matted Tick-trefoil
Meibomia canescens — Hoary Tick-trefoil
Meibomia canescens — Hairy Small-leaved Tick-trefoil, Littleleaf Tick-trefoil
Meibomia chapmanii — Panicled Tick-trefoil
Meibomia dillenii — Perplexing Tick-trefoil, Dillen's Tick-trefoil
Meibomia grandiflora — Long-bracted Tick-trefoil, Toothed Tick-trefoil
Meibomia laevigata — Smooth Tick-trefoil
Meibomia marilandica — Maryland Tick-trefoil
Meibomia michauxii — Roundleaf Tick-trefoil, Dollarleaf, Prostrate Tick-trefoil
Meibomia nudiflora — Naked Tick-trefoil, Naked-flowered Tick Trefoil, Woodland Tick-trefoil
Meibomia paniculata — Panicled Tick-trefoil
Meibomia pauciflora — Few-flowered Tick-trefoil
Meibomia polymorpha — Matted Tick-trefoil
Meibomia purpurea — dixie tick-trefoil
Meibomia rhombifolia — Fernald's Tick-trefoil
Meibomia rhombifolia — Florida Tick-trefoil
Meibomia rigida — Stiff Tick-trefoil
Meibomia sessilifolia — Sessile-leaf Tick-trefoil
Meibomia stricta — Pinebarren Tick-trefoil, Pineland Tick-trefoil, Upland Slender Tick-trefoil
Meibomia tenuifolia — Slimleaf Tick-trefoil, Savanna Slender Tick-trefoil
Meibomia viridiflora — Nuttall's Tick-trefoil
Meibomia viridiflora — Velvety Tick-trefoil, Velvety Tick-clover
Melaleuca leucadendra — Paperbark Tree , Meleleuca, Punktree
Melaleuca leucodendron — Paperbark Tree , Meleleuca, Punktree
Melanthium latifolium — Crisped Bunchflower, Broadleaf Bunchflower
Melanthium parviflorum — Mountain Bunchflower, Small-flowered Hellebore, Small False Hellebore
Melanthium woodii — Ozark Bunchflower, Wood's False-hellebore
Melochia villosa — Bretonica Peluda
Melothria pendula var. aspera — Creeping Cucumber
Melothria pendula var. crassifolia — Creeping Cucumber
Mentha arvensis var. canadensis — Canada Mint, Field Mint, Wild Mint
Mesadenia atriplicifolia — Pale Indian Plantain
Mesadenia reniformis — Great Indian Plantain
Micrampelis lobata — Wild Cucumber, Wild Balsam-apple
Micranthes petiolaris — Cliff Saxifrage, Michaux's Saxifrage
Micranthes petiolaris — Saxifrage
Microstegium vimineum var. imberbe — Japanese Grass, Japanese Stiltgrass, Nepalese Browntop, Nepal Grass
Microstegium vimineum var. vimineum — Japanese Grass, Japanese Stiltgrass, Nepalese Browntop, Nepal Grass
Mimosa illinoensis — Bundleflower, Prairie Mimosa
Mimosa quadrivalvis var. angustata — Eastern Sensitive-briar
Minuartia alabamensis — Piedmont Sandwort
Miscanthus sinensis var. variegatus — Chinese Silvergrass
Miscanthus sinensis var. zebrinus — Chinese Silvergrass
Monarda fistulosa var. clinopodia — Basil Bergamot, Basil Balm
Monogynella japonica — Japanese Dodder
Muhlenbergia capillaris var. capillaris — Pink Muhlygrass, Upland Muhly, Hairawn Muhly, Hairgrass
Muhlenbergia capillaris var. filipes — Dune Hairgrass, Sweetgrass
Muhlenbergia capillaris var. trichopodes — Savannah Hairgrass
Muhlenbergia sylvatica var. sylvatica — Woodland Muhly
Muhlenbergia umbrosa — Woodland Muhly
Muricauda dracontium — Green Dragon
Muscadinia munsoniana — Munson Grape, Bullace Grape
Muscadinia rotundifolia — Muscadine, Scuppernong
Muscari atlanticum — Grape-hyacinth, Blue Bottles
Myosotis versicolor — Yellow-and-blue Scorpion-grass, Changing Forget-me-not
Myrica cerifera — Common Wax Myrtle, Southern Bayberry
Myrica cerifera — Dwarf Wax Myrtle, Dwarf Bayberry
Myrica inodora — Scentless Bayberry, Odorless Bayberry
Myriophyllum exalbescens — Common Water-milfoil
Nabalus integrifolius — Barbed Rattlesnake-root, Flatwoods Rattlesnake-root
Nabalus trifoliatus — Gall-of-the-earth
Nabalus virgatus — Slender Rattlesnake-root, One-sided Rattlesnake-root
Naias guadelupensis — Common Naiad, Southern Naiad
Nama corymbosum — Tall Hydrolea, Skyflower
Nama quadrivalvis — Waterpod, Waterleaf
Nasturtium austriacum — Austrian Yellowcress
Nasturtium officinale var. microphyllum — Narrow-fruited Watercress, Onerow Yellowcress
Nemexia biltmoreana — Biltmore Carrionflower
Nemexia ecirrhata — upright carrionflower
Neocleome spinosa — Cleome, Spiderflower, Pinkqueen
Neopieris mariana — Staggerbush
Neopieris nitida — Shining Fetterbush, Lyonia, Hemleaf
Neottia bifolia — Southern Twayblade
Neottia smallii — Kidneyleaf Twayblade, Appalachian Twayblade, Small's Twayblade
Norta altissima — Tumble Mustard, Jim Hill Mustard
Notholcus lanatus — Velvet Grass
Nuphar advena ssp. advena — Broadleaf Pondlily, Cow-lily, Spatterdock, Yellow Pond Lily
Nymphaea advena — Broadleaf Pondlily, Cow-lily, Spatterdock, Yellow Pond Lily
Nymphaea sagittifolia — Narrowleaf Pondlily, Cow-lily, Spatterdock, Bonnets
Nymphoides aquaticum — Big Floating Heart, Banana Floating Heart
Nymphoides cordatum — Little Floating Heart
Nymphoides peltatum — Yellow Floating Heart
Nyssa biflora var. ursina — Bear Tupelo, Apalachicola Tupelo
Nyssa sylvatica var. ursina — Bear Tupelo, Apalachicola Tupelo
Nyssa uniflora — Water Tupelo, Cotton Gum, Tupelo Gum
Oceanorus leimanthoides — Pinebarrens Death Camas
Odontostephana shortii — Northern Spinypod, Limerock Milkvine, Climbing Milkvine
Oenothera tetragona ssp. glauca var. riparia — Riverbank Evening Primrose, Riverbank Sundrops
Oligoneuron grandiflorus — Hard-leaved Goldenrod, Stiff Goldenrod, Midwestern Bold Goldenrod
Oligoneuron jacksonii — Southeastern Bold Goldenrod
Onosmodium molle ssp. occidentale — Western Marbleseed
Onosmodium occidentale — Western Marbleseed
Ophioglossum crotalophoroides var. nanum — Bulbous Adder's-tongue, Dwarf Adder's Tongue
Ophrys australis — Southern Twayblade
Ophrys smallii — Kidneyleaf Twayblade, Appalachian Twayblade, Small's Twayblade
Oplismenus hirtellus — Wavyleaf Basketgrass
Oplismenus hirtellus — Woods-grass, Bristle Basketgrass
Opulaster opulifolius — Flowering Ninebark, Eastern Ninebark
Opuntia calcicola — Eastern Prickly Pear
Opuntia humifusa var. humifusa — Eastern Prickly Pear
Opuntia humifusa var. humifusa — Common Eastern Prickly Pear
Opuntia humifusa var. humifusa — Eastern Prickly Pear
Opuntia opuntia — Common Eastern Prickly Pear
Opuntia pollardii — Eastern Prickly Pear
Opuntia tracyi — Dune Prickly Pear, Dune Devil-joint, Devils-joint Cactus
Orbexilum gracile — Eastern Sampson's Snakeroot
Orbexilum pedunculatum var. gracile — Eastern Sampson's Snakeroot
Orthodon dianthera — Miniature Beefsteak-plant, Mosla
Osmorrhiza claytonii — Bland Sweet Cicely, Hairy Sweet Cicely
Osmorrhiza longistylis — Anise-root, Smooth Sweet Cicely
Osmunda cinnamomea var. glandulosa — Cinnamon Fern
Osmunda regalis — American Royal Fern
Oxalis acetosella ssp. montana — Mountain Wood-sorrel, American Wood-sorrel, Wood Shamrock, White Wood-sorrel
Oxalis articulata ssp. rubra — windowbox wood-sorrel
Oxalis corymbosa — pink woodsorrel
Oxalis europaea — Common Yellow Wood-sorrel
Oxalis florida var. florida — Southern Yellow Wood-sorrel
Oxalis recurva var. macrantha — Sadie Price’s Yellow Wood-sorrel
Oxalis recurva var. recurva — tufted yellow wood-sorrel
Oxalis repens — Creeping Lady's-sorrel
Oxybaphus nyctagineus — Wild Four-o'clock, Heart-leaved Umbrella-wort
Oxycoccus macrocarpus — Cranberry, Large Cranberry
Oxycoccus ovalifolius — Small Cranberry
Oxycoccus palustris — Small Cranberry
Oxypolis denticulata — Savanna Cowbane
Oxytria albiflora — White Sunnybell
Oxytria crocea — Yellow Sunnybell
Oxytria texana — Texas Sunnybell
Packera millefolia — Blue Ridge Ragwort, Yarrowleaf Ragwort, Divided-leaf Ragwort
Packera schweinitzianus — Robbins' Ragwort, New England Ragwort, New England Groundsel
Panicularia septentrionalis — Eastern Mannagrass, Floating Mannagrass
Panicularia striata — Fowl Mannagrass
Panicum amarum ssp. amarulum — Southern Seabeach Grass
Panicum amarum ssp. amarum — Seaside Panicum, Bitter Seabeach Grass
Panicum anceps ssp. anceps — Beaked Panicum, Beaked Panicgrass
Panicum anceps ssp. rhizomatum — Small Beaked Panicum, Small Beaked Panicgrass
Panicum annulum — Ringed Witchgrass
Panicum arenicoloides — Sandy Woods Witchgrass
Panicum barbulatum — Forked Witchgrass
Panicum boscii var. boscii — Bosc's Witchgrass, Bosc's Panicgrass
Panicum boscii var. molle — Bosc's Witchgrass, Bosc's Panicgrass
Panicum caerulescens — Blue Witchgrass
Panicum capillare ssp. capillare — Witchgrass, Old-witch grass, Tumbleweed, Tickle Grass
Panicum capillare var. capillare — Witchgrass, Old-witch grass, Tumbleweed, Tickle Grass
Panicum columbianum var. columbianum — American Witchgrass
Panicum condensum — Dense Panic Grass
Panicum dichotomiflorum ssp. dichotomiflorum — Fall Panicum, Fall Panicgrass, Spreading Panicgrass
Panicum gouinii — Torpedo Grass
Panicum lindheimeri — Lindheimer's Witchgrass
Panicum lucidum — Bog Witchgrass
Panicum mattamuskeetense — Mattamuskeet Witchgrass
Panicum maximum — Guinea Grass
Panicum nudicaule — Witchgrass
Panicum ovinum — Nerved Witchgrass
Panicum pinetorum — Pineland Witchgrass
Panicum polycaulon — Hairless Witchgrass
Panicum ramosum — Browntop Millet, Dixie Signalgrass
Panicum rhizomatum — Small Beaked Panicum, Small Beaked Panicgrass
Panicum rigidulum var. condensum — Dense Panic Grass
Panicum sphaerocarpon var. inflatum — Round-fruited Witchgrass
Panicum sphaerocarpon var. sphaerocarpon — Round-fruited Witchgrass
Panicum sphagnicola — Peaty Witchgrass
Panicum strigosum var. leucoblepharis — Dwarf Witchgrass
Panicum tsugetorum — American Witchgrass
Panicum tuckermanii — Woodland Panic Grass
Panicum xalapense var. strictirameum — Open-flower Witchgrass, Open-flower Rosette Grass
Panicum yadkinense — Spotted-sheath Witchgrass
Papyrius papyriferus — Paper Mulberry
Parathelypteris simulata — Bog Fern, Massachusetts Fern
Parietaria nummularia — Florida Pellitory
Paronychia dichotoma — Yellow Nailwort, Virginia Whitlow-wort
Paronychia virginica ssp. virginica — Yellow Nailwort, Virginia Whitlow-wort
Parsonsia balsamona — Colombian Waxweed
Parsonsia petiolata — Clammy Cuphea, Blue Waxweed
Parthenium integrifolium — Common Wild Quinine
Paspalum fissifolium — Common Carpetgrass
Paspalum floridanum + — Florida Paspalum
Paspalum furcatum — Big Carpetgrass
Paspalum giganteum — Florida Paspalum
Paspalum lentiferum — Crown Grass
Paspalum repens — Water Paspalum, Horsetail Crown Grass
Pediomelum subacaulis — Nashville Breadroot
Pellaea sp. — Wavy Cloak Fern, Wavy Scaly Cloak Fern
Pellaea ternifolia var. wrightiana — Wright's Cliffbrake
Peniophyllum linifolium — Threadleaf Sundrops, Flaxleaf Sundrops
Pennisetum ciliare var. ciliare — Buffelgrass
Penstemon penstemon — Smooth Beardtongue, Eastern Beardtongue
Peramium ophioides — Dwarf Rattlesnake Orchid, Lesser Rattlesnake-orchid
Peramium pubescens — Downy Rattlesnake Plantain, Downy Rattlesnake-orchid
Perilla frutescens var. crispa — Beefsteak Plant, Perilla
Persea borbonia var. pubescens — Swamp Bay
Persicaria glabra — Dense-flowered Smartweed
Persicaria muhlenbergii — Water Smartweed, Scarlet Smartweed
Persicaria persicaria — Lady's-thumb, Heart's-ease
Petalostemon albidus — White-tassels
Petalostemon carneus — Pink-tassels
Petalostemon gattingeri — Gattinger's Prairie-clover, Purple-tassels
Petalostemon gracilis — Sprawling White-tassels
Petalostemon pinnatus ssp. trifoliatus — Summer Farewell
Petalostemon purpureus — Purple Prairie-clover
Petunia ×hybrida — Garden Petunia
Phacelia bicknellii — Miami-mist
Phacelia boykinii — Miami-mist
Phacelia brevistyla — Fernleaf Phacelia, Purple Phacelia, Forest Phacelia
Phaethusa occidentalis — Southern Crownbeard
Phaethusa virginica — White Crownbeard, Common Frostweed, White Wingstem, Virginia Wingstem
Phalaris arundinacea var. arundinacea — Reed Canarygrass, Ribbongrass
Phalaris arundinacea var. picta — Reed Canarygrass, Ribbongrass
Phaseolus lathyroides — Wild Bushbean
Phellodendron japonicum — Northern Cork-tree, Amur Cork-tree, Japanese Cork-tree
Philadelphus grandiflorus — Appalachian Mock-orange
Philadelphus inodorus var. grandiflorus — Appalachian Mock-orange
Philotria densa — Brazilian Waterweed, Brazilian Egeria, "Brazilian Elodea", "Anacharis"
Philydrum cavaleriei — Woolly Frogsmouth, Frogmouth, Woolly Waterlily
Phlox bifida ssp. stellaria — Cleft Phlox, Sand Phlox
Pholiurus incurvus — Sickle Grass, Hard Grass, Thin-tail
Phoradendron flavescens — American Mistletoe, Christmas Mistletoe
Phoradendron serotinum ssp. serotinum — American Mistletoe, Christmas Mistletoe
Phragmites australis ssp. australis — Common Reed
Phragmites phragmites — Common Reed
Phryma leptostachya var. leptostachya — American Lopseed
Phyllanthus carolinensis — Carolina Leaf-flower
Phyllostachys nigra var. henionis — Black Bamboo
Phyllostachys pubescens — Moso Bamboo
Physalis barbadensis var. barbadensis — Thickleaf Downy Ground-cherry
Physalis integrifolia — Thinleaf Downy Ground-cherry
Physalis maritima — Dune Ground-cherry, Sand Ground-cherry
Physalis pruinosa — Gray Ground-cherry, Strawberry-tomato, Dwarf Cape-gooseberry
Physalis subglabrata — Longleaf Ground-cherry
Physalis virginiana — Virginia Ground-cherry
Physalis viscosa — Dune Ground-cherry, Sand Ground-cherry
Physalodes physalodes — Apple-of-Peru
Physostegia virginiana var. arenaria — Southern Obedient-plant
Piaropus crassipes — Water Hyacinth
Pilea pumila var. deamii — Greenfruit Clearweed, Richweed, Coolwort
Pilostaxis baldwinii — White Milkwort, Baldwin's Milkwort
Pimpinella saxifraga — Burnet-saxifrage
Pinellia pedatisecta — Chinese Green Dragon, Pinellia
Pinellia tripartita — Green Dragon, Pinellia, Voodoo Lily
Pinguicula elatior — Blue Butterwort
Pinus rigida ssp. rigida — Pitch Pine
Pinus rigida ssp. serotina — Pond Pine, Pocosin Pine, Marsh Pine
Pityopsis microcephala — Grass-leaved Golden-aster, Grassleaf Aster
Pityopsis microcephala — narrowleaf silkgrass, Grass-leaved Golden-aster, Grassleaf Aster
Pityothamnus reticulatus — Netleaf Pawpaw
Plantago hybrida — Many-seeded Plantain, Small Plantain
Plantago rugelii var. asperula — American Plantain, Broad-leaved Plantain, Blackseed Plantain, Red-stemmed Plantain
Platanthera orbiculata var. orbiculata — Large Round-leaved Orchid, Dinner-plate Orchid
Platanus acerifolia — London Planetree
Pleuropterus zuccarinii — Japanese Knotweed
Pluchea odorata var. succulenta — Saltmarsh Fleabane, Camphorweed
Pluchea rosea var. rosea — Marsh Fleabane, Rosy Camphorweed
Podostemon abrotanoides — Riverweed, Threadfoot, Riffleweed
Podostemon ceratophyllum — Riverweed, Threadfoot, Riffleweed
Pogonia affinis — Small Whorled Pogonia, Little Five-leaves
Pogonia divaricata — Rosebud Orchid, Large Spreading Pogonia
Pogonia verticillata — Large Whorled Pogonia, Larger Five-leaves
Poinsettia cyathophora — Painted Leaf, Fire-on-the-mountain
Poinsettia dentata — Toothed Spurge, Green Poinsettia, Wild Poinsettia, Painted Leaf
Poinsettia geniculata — Fiddler's Spurge, Mexican Fireplant
Poinsettia heterophylla — Fiddler's Spurge, Mexican Fireplant
Poinsettia heterophylla — Painted Leaf, Fire-on-the-mountain
Polemonium van-bruntiae — Appalachian Jacob's Ladder
Polycodium arenicola — Dwarf Deerberry
Polycodium ashei — Florida Deerberry, Whiteleaf Deerberry
Polycodium candicans — Appalachian Deerberry
Polycodium floridanum — Florida Deerberry, Whiteleaf Deerberry
Polycodium melanocarpum — Southern Deerberry
Polycodium neglectum — Common Deerberry
Polycodium sericeum — Southern Deerberry

Polycodium stamineum — Common Deerberry
Polygala boykinii — Boykin's Milkwort
Polygala cruciata var. aquilonia — Southern Drumheads, Cross-leaved Milkwort
Polygala senega var. latifolia — Seneca Snakeroot
Polygala senega var. senega — Seneca Snakeroot
Polygala viridescens — Field Milkwort, Blood Milkwort
Polygonatum commutatum — Solomon's Seal, Smooth Solomon's Seal
Polygonum aubertii — Lace Vine, Silver-lace-vine, China Fleece-vine
Polygonum aviculare var. aviculare — Prostrate Knotweed
Polygonum caespitosum var. longisetum — Longbristle Smartweed, Bristly Lady’s-thumb, Tufted Knotweed
Polygonum cristatum — Crested Climbing Buckwheat, Climbing False Buckwheat
Polygonum longisetum — Longbristle Smartweed, Bristly Lady’s-thumb, Tufted Knotweed
Polygonum punctatum var. confertiflorum — Dotted Smartweed
Polygonum setaceum + — Swamp Smartweed
Polymnia radiata — Small-flowered Leafcup, White-flowered Leafcup
Polypodium aureum — Goldfoot Fern, Golden Polypody
Polypodium polypodioides var. michauxianum — Resurrection Fern, Scaly Polypody
Polystichum acrostichoides var. lonchitoides — Christmas Fern
Polystichum falcatum — Japanese Holly Fern, Asian Net-veined Holly Fern
Pontederia lanceolata — Lanceleaf Pickerelweed
Porteranthus stipulatus — Midwestern Indian Physic, American Ipecac
Porteranthus trifoliatus — Bowman's Root, Mountain Indian Physic, Fawn's Breath
Potamogeton capillaceus + — Common Snailseed Pondweed
Potentilla monspeliensis — Strawberry-weed, Rough Cinquefoil, Norwegian Cinquefoil
Potentilla pumila — Dwarf Cinquefoil, Running Five-fingers
Poterium sanguisorba — Salad Burnet, Garden Burnet, Fodder Burnet
Prenanthes serpentaria var. barbata — Barbed Rattlesnake-root, Flatwoods Rattlesnake-root
Prunella vulgaris var. hispida — Eurasian Self-heal, Eurasian Heal-all
Prunus americana var. lanata — Big-tree Plum, Mexican Plum
Prunus cuneata — Appalachian Sand Cherry, Susquehanna Cherry, Appalachian Dwarf-cherry
Prunus pennsylvanica — Fire Cherry, Pin Cherry
Prunus umbellata var. injuncunda — Hog Plum, Flatwoods Plum
Prunus yedoensis — Yoshino Cherry
Pseudognaphalium obtusifolium ssp. praecox — Fragrant Rabbit Tobacco, Sweet Everlasting, Catfoot
Psoralea virgata — Pineland Leatherroot, Slender Leatherroot, Pineland Scurf-pea
Pueraria thunbergiana — Kudzu, Foot-a-Day
Pycnanthemum aristatum — awned mountain-mint
Pycnanthemum hyssopifolium — Savanna Mountain-mint
Pycnodoria multifida — Spider Brake, Wall Fern, Huguenot Fern
Pycnodoria vittata — Ladder Brake
Pycnothymus rigidus — Florida Pennyroyal, Wild Pennyroyal
Pylostachya balduinii — White Milkwort, Baldwin's Milkwort
Pyrrhopappus carolinianus var. georgianus — Carolina False Dandelion
Pyrus americana — Mountain-ash, American Mountain-ash, American Rowan
Pyrus angustifolia — Southern Crabapple, Wild Crabapple
Pyrus arbutifolia — Red Chokeberry
Pyrus aucuparia — European Mountain-ash, Rowan
Pyrus baccata — Siberian Crabapple
Pyrus coronaria — Wild Crabapple, Sweet Crabapple
Pyrus floribunda — Purple Chokeberry
Pyrus lancifolia — Wild Crabapple, Sweet Crabapple
Pyrus malus — Common Apple
Pyrus melanocarpa — Black Chokeberry
Q. stellata var. margaretta — Sand Post Oak, Scrub Post Oak
Quamasia hyacinthina — Wild Hyacinth, Eastern Camas Lily, Quamash Lily
Quercus falcata var. pagodifolia — Cherrybark Oak, Swamp Spanish Oak
Quercus falcata var. triloba — Southern Red Oak, Spanish Oak
Quercus margarettiae — Sand Post Oak, Scrub Post Oak
Quercus muehlenbergi — Chinquapin Oak, Yellow Chestnut Oak
Quercus nuttallii — Nuttall Oak, Texas Red Oak
Quercus prinoides var. acuminata — Chinquapin Oak, Yellow Chestnut Oak
Quercus prinoides var. prinoides — Dwarf Chinquapin Oak
Quercus shumardii var. texana — Nuttall Oak, Texas Red Oak
Quercus stellata var. boyntonii — Boynton Sand Post Oak, Boynton Oak
Quercus stellata var. paludosa — Swamp Post Oak, Bottomland Post Oak, Delta Oak
Quercus stellata var. stellata — Post Oak
Radicula palustris — Marshcress, Bog Yellowcress
Raimannia humifusa — Dunes Evening Primrose, Seabeach Evening Primrose, Spreading Evening Primrose
Raimannia laciniata — Cutleaf Evening Primrose
Ramium niveum — Ramie
Ranunculus arvensis var. tuberculatus — Corn Crowfoot, Hungerweed
Ranunculus ficaria — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria ssp. bulbilifer — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria ssp. calthifolius — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria ssp. chrysocephalus — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria ssp. ficaria — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria ssp. ficariiformis — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus harveyi var. harveyi — Harvey's buttercup
Ranunculus obtusiusculus — Water-plantain Crowfoot, Water-plantain Spearwort
Ranunculus palmatus — Carolina Buttercup, Swamp Buttercup
Ranunculus septentrionalis — Carolina Buttercup, Swamp Buttercup
Ranunculus septentrionalis — Northern Swamp Buttercup, Marsh Buttercup
Ranunculus septentrionalis var. caricetorum — Northern Swamp Buttercup, Marsh Buttercup
Ratibida columnaris — Mexican Hat, Columnar Prairie Coneflower, Upright Coneflower, Long-headed Coneflower
Reynoutria polystachya — Himalayan Knotweed, Kashmir Plume, cultivated knotweed
Rhacoma ilicifolia — Holly-leaf Rhacoma, Christmasberry, Quailberry
Rhamnus frangula — Glossy Buckthorn, European Alder-buckthorn
Rhaphis pauciflora — Florida Goldbeard, Florida Rhaphis
Rhaponticum repens — Russian Knapweed
Rhexia ciliosa — Ciliate Meadowbeauty, Short-stemmed Meadowbeauty, Fringed Meadowbeauty, Bog Meadowbeauty
Rhexia virginica var. purshii — Virginia Meadowbeauty, Wingstem Meadowbeauty, Deergrass
Rhodiola roanensis — Roseroot
Rhododendron bakeri — Cumberland Azalea, Baker's Azalea
Rhododendron canescens + — Piedmont Azalea, Southern Pinxterbloom Azalea, Wild Azalea
Rhododendron minus var. minus — Gorge Rhododendron, Punctatum, Piedmont Rhododendron, (Carolina Rhododendron)
Rhododendron minus var. minus — Carolina Rhododendron, Punctatum
Rhus hirta — Staghorn Sumac
Rhus pumila — Michaux's Sumac, Dwarf Sumac, False Poison Sumac
Rhus radicans var. radicans — Eastern Poison Ivy
Rhus radicans var. rydbergii — Wesern Poison Ivy
Rhynchelytrum repens — Rose Natalgrass
Rhynchelytrum roseum — Rose Natalgrass
Rhynchosia erecta — Twining Snoutbean, Erect Snoutbean
Rhynchosia intermedia — Twining Snoutbean, Erect Snoutbean
Rhynchosia simplicifolius — Dollarweed, Dollarleaf