Listed below are 3675 taxa included on NameThatPlant.net as of 2/16/19, 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 √ógrandiflora [chinensis √ó 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
Actinidia arguta Hardy Kiwi, Tara Vine
Actinidia chinensis var. deliciosa Green Kiwi-fruit, Chinese Gooseberry
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’s 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
Anchusa arvensis Small Bugloss, Alkanet
Anchusa officinalis Common Bugloss, Alkanet, Bee Bread
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 elegans Elegant Dutchman's Pipe, Calico Flower
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’s 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
Briza minor Lesser Quaking Grass
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’s 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 √ómoncktonii Meadow Knapweed
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
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’s 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’s 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’s 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’s 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
Cyperus flavescens Yellow Flatsedge
Cyperus granitophilus Granite Flatsedge
Cyperus involucratus Umbrella Plant
Cyperus iria Rice-field Flatsedge
Cyperus lancastriensis Many-flowered Flatsedge
Cyperus lupulinus ssp. lupulinus Southeastern Flatsedge
Cyperus odoratus Fragrant Flatsedge
Cyperus odoratus Slender Sand Flatsedge
Cyperus plukenetii Starburst Flatsedge, Plukenet’s Flatsedge, Plukenet’s Sedge
Cyperus retrorsus var. retrorsus Pineland Flatsedge
Cyperus rotundus Purple Nutsedge, Nutgrass, Cocograss
Cyperus squarrosus Awned Flatsedge
Cyperus strigosus False Nutsedge
Cyperus virens green flatsedge
Cypripedium acaule Pink Lady's Slipper, Mocassin Flower
Cypripedium candidum White Lady's Slipper
Cypripedium kentuckiense Kentucky Yellow Lady's Slipper
Cypripedium parviflorum var. parviflorum Small Yellow Lady's Slipper
Cypripedium parviflorum var. pubescens Large Yellow Lady's Slipper
Cypripedium reginae Showy Lady's Slipper, Queen Lady's Slipper
Cyrilla racemiflora Titi, Swamp Cyrilla, Leatherwood
Cyrtomium falcatum Japanese Holly Fern, Asian Net-veined Holly Fern
Cyrtomium fortunei Fortune's Net-veined Holly Fern
Cystopteris bulbifera Bulblet Bladder Fern, Bulblet Fern
Cystopteris fragilis Fragile Fern, Brittle Fern
Cystopteris protrusa Lowland Bladder Fern, Spreading Bladder Fern
Cystopteris tennesseensis Tennessee Bladder Fern
Cystopteris tenuis Mackay's Bladder Fern, Mackay's Fragile Fern
Cytisus scoparius var. scoparius Scotch Broom
Dactylis glomerata + Orchard Grass
Dactyloctenium aegyptium Crowfoot Grass
Dactylorhiza viridis Long-bracted Orchid, Frog Orchid, Long-bracted Frog Orchid
Dalea carnea var. albida White-tassels
Dalea carnea var. carnea Pink-tassels
Dalea carnea var. gracilis Sprawling White-tassels
Dalea gattingeri Gattinger's Prairie-clover, Purple-tassels
Dalea pinnata var. pinnata Summer Farewell, Eastern Prairie-clover
Dalea pinnata var. trifoliata Summer Farewell
Dalea purpurea var. purpurea Purple Prairie-clover
Dalibarda repens Robin-runaway, Star-violet, Dewdrop
Danthonia compressa Mountain Oatgrass, Flattened Oatgrass, Allegheny Flyback
Danthonia epilis Bog Oatgrass
Danthonia sericea Silky Oatgrass, Downy Oatgrass
Danthonia spicata Poverty Oatgrass, Moonshine Grass
Dasistoma macrophylla Mullein Foxglove
Datura stramonium Jimsonweed
Daucus carota Queen Anne's Lace, Wild Carrot, Bird's Nest
Daucus pusillus American Queen Anne's Lace, American Wild Carrot
Decodon verticillatus Water-oleander, Water-willow, Swamp Loosestrife, Peatweed
Decumaria barbara Climbing Hydrangea, Woodvamp, Decumaria
Delphinium carolinianum ssp. calciphilum Glade Larkspur
Delphinium carolinianum ssp. carolinianum Prairie Larkspur, Carolina Larkspur, Blue Larkspur
Delphinium exaltatum Tall Larkspur
Delphinium tricorne Dwarf Larkspur
Dennstaedtia punctilobula Hay-scented Fern, Pasture Fern, Boulder Fern
Deparia acrostichoides Silvery Glade Fern, Silvery Spleenwort
Deparia petersonii Japanese false spleenwort
Deschampsia cespitosa Tufted Hairgrass
Deschampsia flexuosa var. flexuosa Appalachian Hairgrass, Crinkled Hairgrass, Common Hairgrass, Wavy Hairgrass
Descurainia pinnata ssp. pinnata Southeastern Tansy-mustard
Desmanthus illinoensis Bundleflower, Prairie Mimosa
Desmodium canescens Hoary Tick-trefoil
Desmodium ciliare + Hairy Small-leaved Tick-trefoil, Littleleaf Tick-trefoil
Desmodium cuspidatum var. cuspidatum Long-bracted Tick-trefoil, Toothed Tick-trefoil
Desmodium fernaldii Fernald's Tick-trefoil
Desmodium floridanum Florida Tick-trefoil
Desmodium glabellum Tall Tick-trefoil, Dillen's Tick-trefoil
Desmodium glutinosum Heartleaf Tick-trefoil, Clusterleaf Tick-trefoil, Pointed-leaved Tick-Trefoil
Desmodium laevigatum Smooth Tick-trefoil
Desmodium lineatum Matted Tick-trefoil
Desmodium marilandicum Maryland Tick-trefoil
Desmodium nudiflorum Naked Tick-trefoil, Naked-flowered Tick Trefoil, Woodland Tick-trefoil
Desmodium nuttallii Nuttall's Tick-trefoil
Desmodium obtusum Stiff Tick-trefoil
Desmodium paniculatum var. paniculatum Panicled Tick-trefoil
Desmodium pauciflorum Few-flowered Tick-trefoil
Desmodium perplexum perplexed tick-trefoil, Dillen's Tick-trefoil
Desmodium rotundifolium Roundleaf Tick-trefoil, Dollarleaf, Prostrate Tick-trefoil
Desmodium sessilifolium Sessile-leaf Tick-trefoil
Desmodium strictum Pinebarren Tick-trefoil, Pineland Tick-trefoil, Upland Slender Tick-trefoil
Desmodium tenuifolium Slimleaf Tick-trefoil, Savanna Slender Tick-trefoil
Desmodium tortuosum dixie tick-trefoil
Desmodium viridiflorum Velvety Tick-trefoil, Velvety Tick-clover
Deutzia scabra Deutzia, Pride-of-Rochester
Diamorpha smallii Elf-orpine
Dianthus armeria Deptford Pink
Dicentra canadensis Squirrel Corn
Dicentra cucullaria Dutchman's Britches
Dicentra eximia Wild Bleeding Heart
Dicerandra linearifolia + coastal plain balm
Dicerandra odoratissima Rose Dicerandra, Rose Balm
Dichanthelium aciculare Needleleaf Witchgrass, Needleleaf Rosette Grass
Dichanthelium aciculare Narrow-leaved Witchgrass
Dichanthelium aciculare Sandy Woods Witchgrass
Dichanthelium aciculare Spindle-fruited Witchgrass
Dichanthelium aciculare Nerved Witchgrass
Dichanthelium aciculare Pineland Witchgrass
Dichanthelium acuminatum var. acuminatum Woolly Rosette Grass, Woolly Witchgrass, Tapered Rosette Grass, Woolly Panicum
Dichanthelium boscii Bosc's Witchgrass, Bosc's Panicgrass
Dichanthelium clandestinum Deer-tongue Witchgrass
Dichanthelium commutatum Variable Witchgrass
Dichanthelium depauperatum Starved Witchgrass, Starved Panicgrass
Dichanthelium dichotomum Ringed Witchgrass
Dichanthelium dichotomum var. dichotomum Forked Witchgrass
Dichanthelium dichotomum var. dichotomum Blue Witchgrass
Dichanthelium dichotomum var. dichotomum Mattamuskeet Witchgrass
Dichanthelium dichotomum var. dichotomum Bog Witchgrass
Dichanthelium dichotomum var. dichotomum Witchgrass
Dichanthelium dichotomum var. dichotomum Peaty Witchgrass
Dichanthelium dichotomum var. dichotomum Spotted-sheath Witchgrass
Dichanthelium erectifolium Erect-leaved Witchgrass, Erectleaf Panicgrass
Dichanthelium latifolium Broadleaf Rosette Grass, Broad-leaved Witchgrass
Dichanthelium laxiflorum Open-flower Witchgrass, Open-flower Rosette Grass
Dichanthelium longiligulatum Long-ligule Witchgrass
Dichanthelium oligosanthes var. oligosanthes Few-flowered Witchgrass
Dichanthelium ravenelii Ravenel's Witchgrass, Ravenel's Panicum
Dichanthelium sabulorum var. thinium American Witchgrass
Dichanthelium scoparium Velvet Witchgrass, Velvet Panicum
Dichanthelium sphaerocarpon Round-fruited Witchgrass
Dichanthelium sphaerocarpon var. isophyllum Small-fruited Witchgrass
Dichanthelium strigosum var. glabrescens Hairless Witchgrass
Dichanthelium strigosum var. leucoblepharis Dwarf Witchgrass
Dichanthelium strigosum var. strigosum Rough-hairy Witchgrass
Dichondra carolinensis Carolina Ponyfoot
Dicliptera brachiata Branched Foldwing, Dicliptera
Didiplis diandra Water-purslane
Diervilla lonicera Northern Bush-honeysuckle
Diervilla rivularis Hairy Southern Bush-honeysuckle
Diervilla sessilifolia Smooth Southern Bush-honeysuckle
Digitalis purpurea + Common Foxglove, Digitalis, Purple Foxglove
Digitaria bicornis Asian crabgrass
Digitaria ciliaris Southern Crabgrass
Digitaria filiformis slender crabgrass
Digitaria sanguinalis Hairy Crabgrass, Northern Crabgrass
Dioclea multiflora Cluster-pea, Boykin's Clusterpea
Diodia teres + Poor-joe, Rough Buttonweed
Diodia virginiana + Virginia Buttonweed
Dionaea muscipula Venus Flytrap
Dioscorea alata Water Yam, White Yam, Great Yam, Winged Yam
Dioscorea bulbifera Air Yam, Air Potato
Dioscorea oppositifolia Cinnamon Vine, Chinese Yam
Dioscorea quaternata Whorled Wild Yam
Dioscorea villosa Common Wild Yam, Streamhead Yam
Diospyros kaki Japanese Persimmon, Kaki-plum, Kaki
Diospyros virginiana American Persimmon, Common Persimmon, Simmon
Diphylleia cymosa Umbrella-leaf, Pixie-parasol
Diplazium pycnocarpon Glade Fern
Dipsacus fullonum Wild Teasel, Common Teasel
Dipsacus laciniatus Cutleaf Teasel
Dipsacus sativus Fuller's Teasel
Dirca palustris Eastern Leatherwood, Leatherbark, Wicopee, Rope-bark
Ditrysinia fruticosa Sebastian-bush
Dodecatheon meadia ssp. meadia Eastern Shooting Star
Doellingeria infirma Appalachian Flat-topped White Aster, Cornel-leaf Aster
Doellingeria sericocarpoides Pocosin Flat-topped Aster, Southern Whitetop, Streamhead Flat-topped Aster
Doellingeria umbellata var. umbellata Tall Flat-topped White Aster, Tall Whitetop Aster
Draba aprica Flatrock Draba, Open-ground Whitlow-grass, Granite Whitlow-wort, Sun-loving Draba
Draba brachycarpa Short-fruited Draba
Draba verna Whitlow-grass
Drosera brevifolia Dwarf Sundew, Early Sundew
Drosera capillaris Pink Sundew, Bog Sundew
Drosera filiformis Threadleaf Sundew
Drosera intermedia Water Sundew, Spoonleaf Sundew
Drosera rotundifolia var. rotundifolia Roundleaf Sundew
Drosera tracyi Tracy's Sundew
Drymaria cordata ssp. cordata Heartleaf Drymary, West Indian Chickweed
Dryopteris campyloptera Mountain Wood-fern
Dryopteris carthusiana Spinulose Wood-fern, Toothed Wood-fern
Dryopteris celsa Log Fern
Dryopteris cristata Crested Wood-fern, Crested Shield Fern
Dryopteris goldiana Goldie's Wood-fern
Dryopteris intermedia Evergreen Wood-fern, Fancy Fern, Intermediate Wood-fern
Dryopteris ludoviciana Southern Wood-fern, Southern Shield Fern
Dryopteris marginalis Marginal Wood-fern, Marginal Shield Fern
Duchesnea indica Indian Strawberry, Mock Strawberry
Dulichium arundinaceum Three-way Sedge
Dyschoriste humistrata Swamp Twinflower, Swamp Dyschoriste
Dyschoriste oblongifolia Blue Twinflower, Pineland Dyschoriste, Oblong Twinflower
Dysphania ambrosioides Mexican-tea, Epazote
Dysphania anthelmintica Wormseed, Epazote
Echinacea laevigata Smooth Purple Coneflower, Smooth Coneflower
Echinacea pallida Pale Purple Coneflower
Echinacea paradoxa Yellow Coneflower
Echinacea purpurea Eastern Purple Coneflower
Echinacea simulata Prairie Purple Coneflower, Wavy-leaf Purple Coneflower
Echinacea tennesseensis Tennessee Purple Coneflower
Echinochloa colona Jungle-rice
Echinochloa crus-galli Barnyard Grass
Echinochloa crus-pavonis var. crus-pavonis gulf cockspur grass
Echinochloa muricata var. microstachya Rough Barnyard Grass
Echinochloa muricata var. muricata Rough Barnyard Grass
Echinochloa walteri Swamp Barnyard Grass
Echinocystis lobata Wild Cucumber, Wild Balsam-apple
Echinodorus cordifolius Creeping Burhead, Creeping Water-plantain
Echium vulgare Viper's Bugloss, Blue Weed
Eclipta prostrata Yerba-de-tajo, false daisy
Egeria densa Brazilian Waterweed, Brazilian Egeria, "Brazilian Elodea", "Anacharis"
Eichhornia crassipes Water Hyacinth
Elaeagnus angustifolia Russian Olive, Oleaster
Elaeagnus multiflora Cherry Elaeagnus, Cherry Silverberry
Elaeagnus pungens Thorny Olive, Autumn Siverberry, Silverthorn, Thorny Elaeagnus
Elaeagnus umbellata var. parvifolia Autumn Olive, Spring Silverberry
Eleocharis baldwinii Baldwin’s Spikerush, Slender Spikerush, Roadgrass, Hair Grass
Eleocharis equisetoides Horsetail Spikerush
Eleocharis geniculata Canada spikesedge, Bent spikerush
Eleocharis montevidensis Sand Spikerush
Eleocharis obtusa Blunt Spikerush
Eleocharis quadrangulata squarestem spikerush
Eleocharis vivipara Viviparous Spikerush
Elephantopus carolinianus Leafy Elephant's Foot, Carolina Elephant's Foot
Elephantopus nudatus Coastal Plain Elephant's Foot, Smooth Elephant's Foot, Savanna Elephant's Foot, Pineland Elephant's Foot
Elephantopus tomentosus Common Elephant's Foot, Upland Elephant's Foot, Woodland Elephant's Foot
Eleusine indica Goosegrass, Yard Grass
Elliottia racemosa Georgia Plume, Southern-plume, Elliottia
Elymus canadensis Great Plains Wild-rye, Nodding Wild-rye
Elymus hystrix var. hystrix Common Bottlebrush Grass
Elymus repens Quackgrass, Dog-grass, Witchgrass
Elymus virginicus var. virginicus Virginia Wild-rye, Common Eastern Wild-rye, Terrell Grass
Elytraria caroliniensis var. caroliniensis Carolina Elytraria
Emex spinosa Spiny Emex
Emilia fosbergii Salmon Tasselflower, Cupid’s-shaving-brush
Enemion biternatum False Rue-anemone, Isopyrum
Epidendrum magnoliae var. magnoliae Green-fly Orchid
Epifagus virginiana Beechdrops
Epigaea repens Trailing Arbutus, Mayflower
Epilobium ciliatum ssp. ciliatum American Willow-herb
Epilobium coloratum Purple-leaved Willow-herb, Bronze Willow-herb, Eastern Willow-herb
Epilobium leptophyllum Narrow-leaved Willow-herb, American Marsh Willow-herb
Equisetum arvense Field Horsetail
Equisetum hyemale var. affine Tall Scouring Rush, River Scouring Rush
Eragrostis capillaris Lacegrass
Eragrostis cilianensis Stinkgrass
Eragrostis ciliaris gophertail lovegrass
Eragrostis curvula Weeping Lovegrass
Eragrostis elliottii Elliott's Lovegrass
Eragrostis hirsuta Bigtop Lovegrass
Eragrostis hypnoides Creeping Lovegrass, Teal Lovegrass
Eragrostis pilosa India Lovegrass
Eragrostis spectabilis Purple Lovegrass, Tumblegrass
Eranthis hyemalis Winter Aconite
Erechtites hieraciifolius var. hieraciifolius Fireweed, Pilewort
Eremochloa ophiuroides Centipede Grass
Erica tetralix Cross-leaved Heath
Erigenia bulbosa Harbinger-of-Spring, Pepper-and-Salt, Erigenia
Erigeron annuus Daisy Fleabane, Annual Fleabane
Erigeron philadelphicus var. philadelphicus Daisy Fleabane, Common Fleabane, Philadelphia-daisy
Erigeron pulchellus var. pulchellus Robin's Plantain
Erigeron quercifolius Southern Fleabane, Oakleaf Fleabane
Erigeron strigosus var. strigosus Daisy Fleabane, Common Rough Fleabane, Prairie Fleabane, Slender Daisy Fleabane
Erigeron vernus Whitetop Fleabane, Savanna Daisy Fleabane
Eriocaulon compressum Flattened Pipewort, Hat Pin
Eriocaulon decangulare var. decangulare Common Ten-angled Pipewort, Hat Pin, Hard Pipewort
Eriocaulon ravenelii Ravenel's Pipewort
Eriocaulon texense Texas Hatpins, Texas Pipewort
Eriochloa michauxii var. michauxii Longleaf Cupgrass
Eriogonum tomentosum Sandhill Wild-buckwheat, Southern Wild-buckwheat, Dog-tongue
Eriophorum virginicum Tawny Cottongrass
Erodium cicutarium ssp. cicutarium Common Storksbill, Filaree, Heronsbill
Eruca vesicaria ssp. sativa Arugula, Garden Rocket, Rocket-salad, Salad-rocket
Erucastrum gallicum Dog Mustard, Rocket-weed, French Rocket
Eryngium aquaticum var. aquaticum Marsh Eryngo
Eryngium aquaticum var. ravenelii Ravenel's Eryngo
Eryngium baldwinii Baldwin's eryngo, Baldwin's button snakeroot
Eryngium integrifolium Savanna Eryngo, Blueflower Eryngo
Eryngium maritimum Sea Holly, Seaside Eryngo
Eryngium prostratum Spreading Eryngo, Creeping Eryngo
Eryngium yuccifolium var. synchaetum Southern Rattlesnake-master
Eryngium yuccifolium var. yuccifolium Northern Rattlesnake-master, Button Snakeroot
Erythrina herbacea Coral Bean, Cardinal-spear
Erythronium albidum White Fawnlily, White Trout Lily, Blonde Lilian
Erythronium americanum ssp. americanum American Trout Lily, Dogtooth Violet, Adder's Tongue
Erythronium americanum ssp. harperi Harper's Trout Lily
Erythronium rostratum Beaked Trout Lily
Erythronium umbilicatum ssp. monostolum Southern Appalachian Trout Lily
Erythronium umbilicatum ssp. umbilicatum Dimpled Trout Lily, Dogtooth Violet
Eubotrys racemosa Coastal Fetterbush, Swamp Sweetbells, Swamp Leucothoe
Eubotrys recurva Mountain Sweetbells, Mountain Fetterbush, Deciduous Fetterbush
Euonymus alatus Winged Burning Bush, Winged Euonymus, Winged Wahoo
Euonymus americanus Hearts-a-bustin', Strawberry-bush
Euonymus atropurpureus var. atropurpureus American Wahoo, Burning Bush
Euonymus fortunei var. radicans Wintercreeper, Climbing Euonymus, Chinese Spindle-tree
Euonymus japonicus Japanese Spindletree, Japanese Euonymus
Euonymus obovatus Running Strawberry-bush, Trailing Strawberry Bush, Trailing Wahoo
Eupatorium album var. album White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium
Eupatorium altissimum Tall Thoroughwort, Tall Boneset
Eupatorium altissimum Tall Thoroughwort, Tall Boneset, Pasture Eupatorium
Eupatorium anomalum Anomalous Eupatorium
Eupatorium capillifolium Common Dog-fennel, Summer Cedar, Yankeeweed
Eupatorium compositifolium Coastal Dog-fennel, Yankeeweed
Eupatorium glaucescens Wedgeleaf Eupatorium, Broadleaf Bushy Eupatorium
Eupatorium godfreyanum Godfrey's Thoroughwort
Eupatorium hyssopifolium + Hyssopleaf Boneset, Hyssopleaf Thoroughwort, Hyssopleaf Eupatorium
Eupatorium hyssopifolium var. laciniatum Torrey's Eupatorium
Eupatorium leucolepis var. leucolepis Eupatorium, Justiceweed
Eupatorium leucolepis var. leucolepis Savanna Eupatorium, Justiceweed
Eupatorium mohrii Recurved Eupatorium
Eupatorium mohrii Mohr's Eupatorium
Eupatorium perfoliatum var. perfoliatum Boneset
Eupatorium pilosum Rough Boneset, Ragged Eupatorium
Eupatorium rotundifolium var. cordigerum Clasping Roundleaf Eupatorium
Eupatorium rotundifolium var. ovatum Inland Roundleaf Eupatorium
Eupatorium rotundifolium var. rotundifolium Common Roundleaf Boneset, Common Roundleaf Thoroughwort, Common Roundleaf Eupatorium
Eupatorium semiserratum Olive Eupatorium, Threeleaf Eupatorium
Eupatorium serotinum Late-flowering Boneset, Late-flowering Thoroughwort, Late Eupatorium, Late Boneset
Eupatorium sessilifolium var. brittonianum Britton's Eupatorium
Eupatorium sessilifolium var. sessilifolium Upland Boneset, Sessile-leaf Eupatorium
Eupatorium sessilifolium var. vaseyi Vasey's Eupatorium
Euphorbia commutata Woodland Spurge, Tinted Spurge, Wood Spurge
Euphorbia corollata Eastern Flowering Spurge
Euphorbia curtisii White Sandhills Spurge
Euphorbia cyathophora Painted Leaf, Fire-on-the-mountain
Euphorbia cyparissias Cypress Spurge, Graveyard Spurge
Euphorbia dentata var. dentata Toothed Spurge, Green Poinsettia, Wild Poinsettia, Painted Leaf
Euphorbia discoidalis Summer Spurge
Euphorbia esula var. esula Wolf's-milk, Leafy Spurge
Euphorbia exserta Maroon Sandhills Spurge, Coastal Sand Spurge, Purple Sandhill-spurge
Euphorbia graminea grassleaf spurge
Euphorbia heterophylla Fiddler's Spurge, Mexican Fireplant
Euphorbia ipecacuanhae Carolina Ipecac, Wild Ipecac
Euphorbia lathyris Caper Spurge, Myrtle Spurge, Mole Plant
Euphorbia mercurialina Cumberland Spurge, Mercury Spurge
Euphorbia pubentissima False Flowering Spurge, Southeastern Flowering Spurge, Southern Flowering Spurge
Euphorbia purpurea Glade Spurge, Darlington Spurge, Purple Spurge
Eurybia avita Alexander's Rock Aster
Eurybia chlorolepis Blue Ridge White Heart-leaved Aster
Eurybia compacta Slender Aster
Eurybia divaricata White Wood Aster, Woodland Aster, Common White Heart-leaved Aster
Eurybia eryngiifolia Eryngo-leaved Aster, Thistleleaf Aster
Eurybia macrophylla Large-leaf Aster, Big-leaved Aster
Eurybia mirabilis Piedmont Aster
Eurybia paludosa Savannah Grass-leaved Aster, Southern Swamp Aster
Eurybia radula Rough-leaved Aster, Low Rough Aster
Eurybia schreberi Schreber's Aster
Eurybia spectabilis Low Showy Aster
Eurybia surculosa Creeping Aster
Eustachys petraea Dune Fingergrass
Euthamia caroliniana Slender Flat-topped Goldenrod
Euthamia graminifolia var. graminifolia Flat-topped Goldenrod
Euthamia graminifolia var. hirtipes Marsh Flat-topped Goldenrod
Euthamia leptocephala Mississippi Valley Flat-topped Goldenrod
Eutrochium dubium Coastal Plain Joe Pye Weed, Three-nerved Joe Pye Weed
Eutrochium fistulosum Hollow-stem Joe Pye Weed
Eutrochium maculatum var. maculatum Spotted Joe Pye Weed
Eutrochium purpureum var. carolinianum Carolina Joe Pye Weed
Eutrochium purpureum var. purpureum Purple-node Joe Pye Weed
Eutrochium steelei Appalachian Joe Pye Weed, Steele's Joe Pye Weed
Exochorda racemosa Pearlbush
Facelis retusa Trampweed, Fluffweed
Fagopyrum esculentum Buckwheat
Fagus grandifolia American Beech
Fatoua villosa Crabweed, Mulberry-weed, Foolish-weed
Festuca brevipila Hard Fescue
Festuca paradoxa Cluster Fescue
Festuca subverticillata Nodding Fescue
Ficus carica Edible Fig, Garden Fig
Ficus pumila Climbing Fig, Creeping Fig
Ficus thonningii Laurel Fig
Filipendula rubra Queen-of-the-Prairie
Filipendula ulmaria ssp. ulmaria Queen-of-the-Meadow, Meadowsweet
Fimbristylis caroliniana Carolina Fimbry
Fimbristylis castanea Marsh Fimbry
Fimbristylis schoenoides ditch fimbry
Firmiana simplex Chinese Parasol-tree, Japanese Varnishtree, Phoenix Tree
Flaveria bidentis coastal plain yellowtops
Fleischmannia incarnata Pink Thoroughwort, Pink Eupatorium
Foeniculum vulgare Fennel
Forestiera acuminata Swamp-privet
Forestiera godfreyi Godfrey's Forestiera
Forestiera ligustrina Upland Swamp Privet, Southern-privet, Glade Privet, Upland Privet
Forestiera segregata var. segregata Florida-privet
Forsythia suspensa Weeping Forsythia
Forsythia viridissima Greenstem Forsythia
Fothergilla gardenii Coastal Witch-alder, Dwarf Witch-alder, Small Witch-alder, Fothergilla
Fothergilla major Large Witch-alder, Mountain Witch-alder, Fothergilla
Fragaria virginiana ssp. virginiana Wild Strawberry
Frangula alnus Glossy Buckthorn, European Alder-buckthorn
Frangula caroliniana Carolina Buckthorn, Polecat-tree, Indian Currant
Franklinia alatamaha Franklinia, Franklin Tree, Lost Gordonia
Frasera caroliniensis American Columbo
Fraxinus americana White Ash, American Ash
Fraxinus americana Biltmore Ash, Biltmore White Ash
Fraxinus caroliniana Carolina Ash, Water Ash, Pop Ash
Fraxinus pennsylvanica Green Ash, Red Ash
Fraxinus profunda Pumpkin Ash
Fraxinus quadrangulata Blue Ash
Froelichia floridana var. campestris Plains Cottonseed
Froelichia floridana var. floridana Common Cottonweed, Florida Cottonseed
Froelichia gracilis Slender Cottonweed
Fuirena scirpoidea Southern Umbrella-sedge
Fumaria officinalis Fumitory, Earthsmoke
Gaillardia aestivalis var. aestivalis Sandhills Gaillardia, Rayless Blanketflower, Lanceleaf Blanketflower
Gaillardia aestivalis var. flavovirens lanceleaf blanketflower
Gaillardia pulchella var. picta Beach Blanket Flower, Gaillardia, Firewheel, Indian Blanket
Gaillardia pulchella var. pulchella Common Blanket Flower, Gaillardia, Firewheel, Indian Blanket
Galactia elliottii Elliott's Milkpea
Galactia erecta Erect Milkpea
Galactia mollis Soft Milkpea
Galactia regularis Smooth Milkpea, Common Milkpea
Galactia volubilis Downy Milkpea, Hairy Milkpea, Twining Milkpea
Galanthus nivalis Snowdrop
Galax urceolata Galax, Beetleweed
Galearis spectabilis Showy Orchis
Galega officinalis Professor-weed, Goats-rue
Galinsoga parviflora Lesser Peruvian-daisy, Gallant Soldiers
Galinsoga quadriradiata Common Peruvian-daisy, Gallant Soldiers
Galium album white bedstraw
Galium aparine Cleavers, Bedstraw
Galium asprellum Rough Bedstraw
Galium boreale Northern Bedstraw
Galium circaezans var. circaezans Southern Forest Bedstraw, Wild-licorice
Galium concinnum Shining Bedstraw
Galium hispidulum Coastal Bedstraw
Galium lanceolatum Wild-licorice
Galium latifolium Purple Bedstraw, Wideleaf Bedstraw
Galium mollugo False Baby's Breath, Smooth Bedstraw, Hedge Bedstraw, Wild Madder
Galium obtusum ssp. obtusum Bluntleaf Bedstraw
Galium pilosum + Hairy Bedstraw
Galium tinctorium Marsh Bedstraw, Dye Bedstraw
Galium triflorum Sweet-scented Bedstraw, Fragrant Bedstraw
Galium uniflorum One-flower Bedstraw
Galium verum Yellow Bedstraw, Our Lady's Bedstraw
Gamochaeta americana Shiny Cudweed
Gamochaeta falcata Narrowleaf Cudweed, Caribbean Everlasting
Gamochaeta falcata Narrowleaf Cudweed
Gamochaeta pensylvanica Wandering Cudweed, Pennsylvania Everlasting
Gamochaeta purpurea Purple Cudweed
Gamochaeta purpurea Purple Cudweed
Gamochaeta purpurea Spoonleaf Purple Everlasting, Purple Cudweed
Gamochaeta simplicicaulis simple-stem everlasting
Gaultheria hispidula Creeping Snowberry, Moxie
Gaultheria procumbens Wintergreen, Teaberry
Gaura angustifolia Southeastern Gaura
Gaura biennis Biennial Gaura, Northeastern Gaura, Morning Honeysuckle
Gaura filipes Threadstalk Gaura
Gaylussacia baccata Black Huckleberry, Crackleberry
Gaylussacia brachycera Box Huckleberry
Gaylussacia dumosa Southern Dwarf Huckleberry
Gaylussacia frondosa Dangleberry
Gaylussacia mosieri Mosier's Huckleberry, Hirsute Huckleberry
Gaylussacia tomentosa Woolly Dangleberry, Hairy Dangleberry
Gaylussacia ursina Bear Huckleberry, Mountain Huckleberry, Buckberry
Gelsemium rankinii Swamp Jessamine
Gelsemium sempervirens Carolina Jessamine, Yellow Jessamine
Gentiana alba Pale Gentian
Gentiana andrewsii var. andrewsii Prairie Closed Gentian, Closed Bottle Gentian
Gentiana austromontana Blue Ridge Gentian, Appalachian Gentian
Gentiana autumnalis Pinebarren Gentian, Autumn Gentian
Gentiana catesbaei Coastal Plain Gentian, Catesby's Gentian, Elliott's Gentian
Gentiana clausa Meadow Closed Gentian, Meadow Bottle Gentian
Gentiana decora Appalachian Gentian
Gentiana linearis Narrowleaf Gentian
Gentiana saponaria Soapwort Gentian, Harvest Bells
Gentiana saponaria var. latidens Balsam Mountain Gentian
Gentiana villosa Striped Gentian
Gentianella quinquefolia ssp. quinquefolia Fivefinger Gentian, Eastern Agueweed, Stiff Gentian
Gentianopsis crinita Eastern Fringed Gentian
Geranium carolinianum var. carolinianum Carolina Cranesbill
Geranium dissectum Cutleaf Cranesbill
Geranium maculatum Wild Geranium
Geranium molle Dove's-foot Cranesbill
Geranium pusillum Small-flowered Cranesbill
Geranium robertianum Herb Robert
Geum canadense var. canadense White Avens
Geum geniculatum Bent Avens
Geum radiatum Mountain Avens, Appalachian Avens, Spreading Avens, Cliff Avens
Geum vernum Spring Avens
Geum virginianum Pale Avens, Cream Avens
Gillenia stipulata Midwestern Indian Physic, American Ipecac
Gillenia trifoliata Bowman's Root, Mountain Indian Physic, Fawn's Breath
Ginkgo biloba Ginkgo, Maidenhair Tree
Gladiolus dalenii ssp. dalenii Gladiolus
Glandularia bipinnatifida var. bipinnatifida Dakota Vervain, Dakota Mock Vervain
Glandularia canadensis Rose Vervain, Rose Verbena, Creeping Vervain
Glandularia pulchella Moss Vervain, South American Vervain, Moss Verbena
Glaucium flavum Yellow Hornpoppy, Yellow Horned-poppy, Sea-poppy
Glechoma hederacea Ground Ivy, Gill-over-the-ground, Creeping Charlie
Gleditsia aquatica Water Locust
Gleditsia triacanthos Honey Locust
Glossostigma cleistanthum Mudmat
Glyceria septentrionalis Eastern Mannagrass, Floating Mannagrass
Glyceria striata Fowl Mannagrass
Goodyera pubescens Downy Rattlesnake Plantain, Downy Rattlesnake-orchid
Goodyera repens Dwarf Rattlesnake Orchid, Lesser Rattlesnake-orchid
Gordonia lasianthus Loblolly Bay, Gordonia
Gossypium hirsutum var. hirsutum Upland Cotton
Gratiola aurea Yellow Hedge-hyssop, Golden-pert
Gratiola hispida Pineland Hedge-hyssop
Gratiola neglecta Mud-hyssop, Mud Hedge-hyssop
Gratiola pilosa Shaggy Hedge-hyssop, Pilose Hedge-hyssop
Gratiola virginiana + Round-fruit Hedge-hyssop, Virginia Hedge-hyssop
Gratiola viscidula Viscid Hedge-hyssop, Sticky Hedge-hyssop
Gymnocladus dioicus Kentucky Coffee-tree
Gymnopogon ambiguus Eastern Skeletongrass, Eastern Beardgrass, Bearded Skeletongrass
Gypsophila paniculata Tall Baby's Breath
Habenaria quinqueseta Michaux's Orchid, Long-horned Habenaria
Habenaria repens Water-spider Orchid, Floating Orchid
Hackelia virginiana Virginia Stickseed
Halesia carolina Little Silverbell
Halesia diptera Common Two-wing Silverbell
Halesia tetraptera var. monticola Mountain Silverbell
Halesia tetraptera var. tetraptera Common Silverbell
Hamamelis vernalis Vernal Witch-hazel, Ozark Witch-hazel, Springtime Witch-hazel
Hamamelis virginiana American Witch-hazel, Northern Witch-hazel
Hedeoma hispida Rough Pennyroyal
Hedeoma pulegioides American Pennyroyal
Hedera colchica Persian Ivy
Hedera helix English Ivy, Common Ivy
Hedera hibernica Atlantic Ivy, Irish Ivy
Helenium amarum var. amarum Bitterweed
Helenium autumnale var. autumnale Common Sneezeweed
Helenium brevifolium Littleleaf Sneezeweed, Shortleaf Sneezeweed
Helenium flexuosum Purplehead Sneezeweed, Southern Sneezeweed
Helenium pinnatifidum Sneezeweed
Helenium vernale Sneezeweed, Spring Helenium
Helianthemum canadense Canada Frostweed, Canada Sunrose
Helianthemum carolinianum Carolina Sunrose, Carolina Frostweed, Carolina Rockrose
Helianthemum georgianum Georgia Sunrose, Georgia Frostweed
Helianthemum rosmarinifolium Rosemary Sunrose, Rosemary Frostweed
Helianthus agrestis Southeastern Sunflower
Helianthus angustifolius Narrowleaf Sunflower , Swamp Sunflower
Helianthus annuus Common Sunflower
Helianthus atrorubens Purple-disc Sunflower, Hairy Wood Sunflower, Appalachian Sunflower
Helianthus ciliaris Texas Blueweed
Helianthus debilis ssp. cucumerifolius Cucumber-leaf Sunflower
Helianthus decapetalus Thin-leaved Sunflower, Forest Sunflower
Helianthus divaricatus Woodland Sunflower, Spreading Sunflower
Helianthus giganteus Tall Sunflower, Swamp Sunflower, Tuberous Sunflower
Helianthus glaucophyllus Whiteleaf Sunflower
Helianthus heterophyllus Savanna Sunflower, Variable-leaf Sunflower
Helianthus hirsutus Hairy Sunflower, Rough Sunflower
Helianthus longifolius Longleaf Sunflower
Helianthus maximiliani Maximilian Sunflower
Helianthus microcephalus Small Wood Sunflower, Small-headed Sunflower
Helianthus mollis Downy Sunflower, Ashy Sunflower, Gray Sunflower
Helianthus occidentalis ssp. occidentalis Naked-stem Sunflower
Helianthus pauciflorus ssp. pauciflorus Stiff Sunflower
Helianthus porteri Confederate Daisy
Helianthus radula Roundleaf Sunflower, Rayless Sunflower
Helianthus resinosus Hairy Sunflower, Resinous Sunflower, Gray Sunflower
Helianthus schweinitzii Schweinitz's Sunflower
Helianthus smithii Smith's Sunflower
Helianthus strumosus Roughleaf Sunflower, Pale-leaf Woodland Sunflower
Helianthus tuberosus Jersalem Artichoke
Helianthus Xlaetiflorus [pauciflorus X tuberosus] cheerful sunflower
Helianthus Xverticillatus Whorled Sunflower
Heliopsis helianthoides var. helianthoides False Sunflower, Eastern Oxeye, Eastern Sunflower-everlasting, Smooth Oxeye
Heliotropium amplexicaule Clasping Heliotrope
Heliotropium curassavicum var. curassavicum Seaside Heliotrope
Heliotropium indicum Indian Heliotrope, Turnsole
Helleborus foetidus Stinking Hellebore
Helleborus niger black hellebore
Helleborus orientalis Lenten-rose
Helleborus viridis Lenten-rose, Green Hellebore, Christmas-rose
Helonias bullata Swamp Pink
Hemerocallis fulva Orange Daylily, Tawny Daylily, Roadside Daylily
Hemerocallis lilioasphodelus Yellow Daylily, Lemon Daylily
Hepatica nobilis var. acuta Sharp-lobed Hepatica, Sharp-lobed Liverleaf
Hepatica nobilis var. obtusa Round-lobed Hepatica, Round-lobed Liverleaf
Heracleum mantegazzianum Giant Hogweed
Heracleum maximum Cow Parsnip, American Hogweed, Masterwort
Hesperis matronalis Dame's Rocket
Heteranthera dubia Water Stargrass
Heteranthera reniformis Mud Plantain, Kidney-leaf Mud Plantain
Heterotheca camporum var. glandulissimum Nashville Camphorweed
Heterotheca subaxillaris Dune Camphorweed
Heterotheca subaxillaris Common Camphorweed
Heuchera americana var. americana American Alumroot
Heuchera parviflora var. parviflora Cave Alumroot, Small-flower Alumroot
Heuchera villosa var. villosa Mapleleaf Alumroot, Hairy Alumroot, Rock Alumroot
Hexalectris spicata Crested Coralroot, Spiked Crested Coralroot, Brunetta
Hexastylis arifolia var. arifolia Little Brown Jug, Arrowhead Heartleaf
Hexastylis arifolia var. callifolia heartleaf
Hexastylis arifolia var. ruthii Appalachian Little Brown Jug
Hexastylis contracta Mountain Heartleaf
Hexastylis heterophylla Heartleaf Ginger, Variable-leaf Heartleaf, Wild Ginger
Hexastylis lewisii Lewis's Heartleaf
Hexastylis minor Little Heartleaf, Small Heartleaf Ginger
Hexastylis naniflora Dwarf-flower Heartleaf
Hexastylis rhombiformis French Broad Heartleaf, Carolina Heartleaf
Hexastylis shuttleworthii var. harperi Harper's Heartleaf
Hexastylis shuttleworthii var. shuttleworthii Large-flower Heartleaf, Wild Ginger
Hexastylis sorriei Sandhill Heartleaf, Streamhead Heartleaf
Hexastylis virginica Virginia Heartleaf, Virginia Ginger
Hibiscus aculeatus Savanna Hibiscus, Comfort-root
Hibiscus coccineus Scarlet Rose-mallow, Scarlet Hibiscus, Swamp Mallow
Hibiscus grandiflorus Large-flowered Hibiscus, Swamp Rose Mallow
Hibiscus laevis Halberd-leaved Marsh-mallow, Rose Hibiscus, Smooth Rose-mallow, Showy Hibiscus
Hibiscus lasiocarpos Western Rose-mallow
Hibiscus moscheutos Eastern Rose-mallow, Swamp Rose-mallow, Wild Cotton
Hibiscus syriacus Rose-of-Sharon, Althea
Hibiscus trionum Flower-of-an-hour
Hieracium aurantiacum Orange Hawkweed, Devil's Paintbrush, Orange King-devil
Hieracium caespitosum Field Hawkweed, Yellow King-devil
Hieracium gronovii Hairy Hawkweed, Beaked Hawkweed
Hieracium marianum Maryland Hawkweed
Hieracium paniculatum Panicled Hawkweed, Leafy Hawkweed
Hieracium pilosella var. pilosella Mouse-ear Hawkweed
Hieracium piloselloides Smooth Hawkweed, Glaucous King-devil
Hieracium scabrum var. scabrum Rough Hawkweed
Hieracium venosum Rattlesnake Weed, Veiny Hawkweed, Rattlesnake Hawkweed
Hieracium Xflagellare var. flagellare Whiplash Hawkweed
Holcus lanatus Velvet Grass
Hordeum pusillum Little Barley
Hosta ventricosa Blue Plantain-lily
Houstonia caerulea Quaker Ladies, Common Bluet, Innocence
Houstonia canadensis Canada Bluet
Houstonia longifolia Eastern Longleaf Bluet
Houstonia longifolia Diffuse-branched Bluet, Narrow-leaved Houstonia
Houstonia longifolia Granite Dome Bluet
Houstonia micrantha Southern Bluet
Houstonia procumbens Roundleaf Bluet, Creeping Bluet, Trailing Bluet, Fairy-footprints
Houstonia purpurea var. calycosa Midwestern Summer Bluet, Venus's Pride
Houstonia purpurea var. montana Roan Mountain Bluet
Houstonia purpurea var. purpurea Summer Bluet, Purple Bluet, Woodland Bluet
Houstonia pusilla Tiny Bluet, Small Bluet
Houstonia serpyllifolia Thyme-leaved Bluet, Appalachian Bluet, Prostrate Bluet, Marsh Bluet
Hudsonia ericoides Northern Golden-heather
Hudsonia montana Mountain Golden-heather
Hudsonia tomentosa var. tomentosa Woolly Beach-heather
Humulus japonicus Japanese Hops
Huperzia appalachiana Appalachian Firmoss, Appalachian Fir-clubmoss
Huperzia lucidula Shining Clubmoss, Shining Firmoss
Huperzia porophila Rock Clubmoss, Rock Firmoss
Hybanthus concolor Green Violet
Hydrangea arborescens Smooth Hydrangea, Sevenbark
Hydrangea cinerea Ashy Hydrangea
Hydrangea quercifolia Oakleaf Hydrangea
Hydrangea radiata Snowy Hydrangea, Silverleaf
Hydrastis canadensis Goldenseal
Hydrilla verticillata Hydrilla
Hydrocharis morsus-ranae European frog-bit
Hydrocleys nymphoides Water Poppy
Hydrocotyle americana American Water-pennywort
Hydrocotyle bonariensis Dune Pennywort, Seaside Pennywort, Dune Water-pennywort
Hydrocotyle prolifera whorled marsh-pennywort
Hydrocotyle ranunculoides Swamp Water-pennywort
Hydrocotyle sibthorpioides Lawn Water-pennywort
Hydrocotyle umbellata Marsh Water-pennywort
Hydrocotyle verticillata var. verticillata whorled marsh-pennywort
Hydrolea corymbosa Tall Hydrolea, Skyflower
Hydrolea quadrivalvis Waterpod, Waterleaf
Hydrophyllum appendiculatum Biennial Waterleaf
Hydrophyllum canadense Mapleleaf Waterleaf, Broad-leaved Waterleaf, Canada Waterleaf
Hydrophyllum macrophyllum Hairy Waterleaf
Hydrophyllum virginianum Virginia Waterleaf, Eastern Waterfleaf
Hygrophila polysperma East Indian Swampweed, East Indian Hygrophila, Miramar Weed, Hygro
Hylotelephium telephioides Allegheny Live-forever, Cliff Orpine, Allegheny Stonecrop
Hymenocallis coronaria Rocky-shoals Spiderlily, Catawba Spiderlily, Carolina Spiderlily, Cahaba Lily
Hymenocallis floridana Florida Spiderlily
Hymenocallis liriosme Western Marsh Spiderlily, Louisiana Marsh Spiderlily
Hymenocallis occidentalis var. occidentalis Hammock Spiderlily, Woodland Spiderlily, Northern Spiderlily
Hymenocallis rotata Spring-run Spiderlily
Hymenopappus scabiosaeus var. scabiosaeus Woolly-white
Hypericum adpressum Creeping St. Johnswort, Bog St. Johnswort
Hypericum buckleii Granite Dome St. Johnswort, Mountain St. Johnswort, Appalachian St. Johnswort, Dwarf St. Johnswort
Hypericum calycinum Aaron's Beard
Hypericum canadense Canada St. Johnswort
Hypericum cistifolium Roundpod St. Johnswort
Hypericum crux-andreae St. Peter's-wort, St. Andrew's Cross, St. Peter's Cross
Hypericum densiflorum Mountain Bushy St. Johnswort, Dense-flowered St. Johnswort
Hypericum densiflorum Interior Bushy St. Johnswort
Hypericum denticulatum Coppery St. Johnswort
Hypericum dolabriforme Glade St. Johnswort
Hypericum fasciculatum Peelbark St. Johnswort
Hypericum frondosum Golden St. Johnswort
Hypericum galioides bedstraw St. Johnswort
Hypericum gentianoides Pineweed, Orange-grass
Hypericum graveolens Mountain St. Johnswort
Hypericum hypericoides ssp. hypericoides St. Andrew's Cross
Hypericum hypericoides ssp. multicaule Creeping St. Andrew's Cross, Low St. Johnswort, Straggling St. Johnswort
Hypericum lloydii Lloyd's St. Johnswort, Sandhills St. Johnswort, Piedmont St. Johnswort
Hypericum mitchellianum Blue Ridge St. Johnswort
Hypericum mutilum Common Dwarf St. Johnswort
Hypericum nudiflorum Early St. Johnswort, Naked St. Johnswort, Streamside St. Johnswort
Hypericum nudiflorum early St. Johnswort
Hypericum perforatum European St. Johnswort
Hypericum prolificum Shrubby St. Johnswort
Hypericum punctatum Spotted St. Johnswort
Hypericum reductum Sandhill St. Johnswort
Hypericum setosum Hairy St. Johnswort
Hypericum sphaerocarpum Barrens St. Johnswort
Hypericum suffruticosum Pineland St. Johnswort
Hypericum tetrapetalum Low St. Peter's-wort
Hypericum virgatum Strict St. Johnswort
Hypochaeris radicata Spotted Cat's-ear, Cat's Ear Dandelion
Hypolepis repens Creeping Bramble Fern
Hypoxis hirsuta Yellow Stargrass, Hairy Yellow Stargrass, Common Stargrass, Upland Stargrass
Hypoxis juncea Fringed Stargrass
Hypoxis wrightii Bristleseed Stargrass, Pineland Stargrass
Hyptis alata Musky Mint, Cluster Bushmint
Hyptis mutabilis Tropical Bushmint
Ilex ambigua Carolina Holly
Ilex amelanchier Sarvis Holly
Ilex cassine var. cassine Dahoon, Cassena, Dahoon Holly
Ilex coriacea Sweet Gallberry, Big Gallberry, Large Gallberry
Ilex cornuta Chinese Holly, Burford Holly
Ilex crenata Japanese Holly
Ilex cuthbertii Cuthbert Holly
Ilex decidua Possumhaw, Possumhaw Holly
Ilex glabra Inkberry, Bitter Gallberry, Little Gallberry
Ilex laevigata Smooth Winterberry
Ilex longipes Georgia Holly, Chapman's Holly
Ilex montana Mountain Holly, Mountain Winterberry
Ilex myrtifolia Myrtle Holly, Myrtle-leaved Holly
Ilex opaca var. opaca American Holly, Christmas Holly
Ilex verticillata Downy Winterberry, Black-alder
Ilex vomitoria Yaupon Holly, Yaupon
Illicium floridanum Florida Star-anise, Florida Anise-tree, Stinkbush
Illicium parviflorum Swamp Star-anise, Yellow Anise-tree, Ocala Anise-tree
Impatiens capensis Spotted Jewelweed, Spotted Touch-me-not, Orange Jewelweed, Orange Touch-me-not
Impatiens glandulifera Ornamental Jewelweed, Himalayan Balsam, Indian Balsam
Impatiens pallida Pale Jewelweed, Pale Touch-me-not, Yellow Jewelweed, Yellow Touch-me-not
Imperata cylindrica Cogongrass, Bloodroot Grass, Brazilian Satintail
Indigofera caroliniana Wild Indigo, Carolina Indigo
Indigofera hirsuta Hairy Indigo, Roughhairy Indigo
Indigofera suffruticosa West Indian Indigo
Ionactis linariifolius Stiff-leaf Aster, Flaxleaf Aster, Spruce Aster
Ipomoea aquatica Water Spinach, Swamp Morning Glory
Ipomoea batatas Sweet Potato
Ipomoea coccinea Small Red Morning Glory, Scarlet Creeper
Ipomoea cordatotriloba var. cordatotriloba Coastal Morning Glory, Tie-vine, Cotton Morning Glory
Ipomoea hederacea Ivyleaf Morning Glory
Ipomoea hederifolia Scarlet Creeper
Ipomoea imperati Fiddle-leaf Morning Glory, Beach Morning Glory
Ipomoea lacunosa Small White Morning Glory, Small-flowered Morning Glory, Whitestar
Ipomoea macrorhiza Indian Midden Morning Glory, Manroot
Ipomoea pandurata Manroot, Wild Potato Vine, Man-of-the-earth, Wild Sweet Potato
Ipomoea pes-caprae ssp. brasiliensis Railroad Vine, Bay Hops, Bay Winders, Goat's-foot
Ipomoea purpurea Common Morning Glory
Ipomoea quamoclit Cypress-vine
Ipomoea sagittata Saltmarsh Morning Glory
Ipomoea triloba Little-bell
Ipomopsis rubra Standing-cypress
Iris brevicaulis Short-stem Iris, Lamance Iris, Zigzag Iris
Iris cristata Dwarf Crested Iris
Iris fulva Copper Iris, Red Flag
Iris germanica German Iris, Fleur-de-Lys
Iris giganticaerulea Giant Blue Iris
Iris hexagona var. hexagona Dixie Iris, Anglepod Blue Flag
Iris hexagona var. savannarum savanna iris
Iris prismatica Slender Blue Flag, Slender Blue Iris
Iris pseudacorus Yellow Flag, Water Flag
Iris sibirica Siberian Iris
Iris tridentata Bay Blue-flag Iris, Flag
Iris verna var. smalliana Upland Dwarf Iris
Iris verna var. verna Coastal Plain Dwarf Iris, Sandhill Iris
Iris virginica var. virginica Southern Blue Flag
Isoetes appalachiana Appalachian Quillwort
Isoetes boomii Boom's Quillwort
Isoetes engelmannii Engelman's Quillwort
Isoetes georgiana Georgia Quillwort
Isoetes hyemalis Wintergreen Quillwort, Winter Quillwort, evergreen quillwort
Isoetes junciformis Rush Quillwort
Isoetes melanopoda Eastern Blackfoot Quillwort
Isoetes melanopoda Blackfoot Quillwort
Isoetes melanospora Black-spored Quillwort
Isoetes piedmontana Piedmont Quillwort
Isoetes riparia var. riparia Shore Quillwort
Isoetes tegetiformans Mat-forming Quillwort, Merlin's Grass, Mat-forming Melin's grass
Isoetes valida Mountain Quillwort, Carolina Quillwort
Isoetes virginica Virginia Quillwort
Isolepis carinata Keeled Bulrush
Isotria medeoloides Small Whorled Pogonia, Little Five-leaves
Isotria verticillata Large Whorled Pogonia, Larger Five-leaves
Itea virginica Virginia Sweetspire, Virginia-willow
Iva annua + Sumpweed, Rough Marsh-elder
Iva frutescens ssp. frutescens Southern Maritime Marsh-elder
Iva imbricata Seashore Elder, Dune Marsh-elder
Jacquemontia tamnifolia Jacquemontia, Smallflower Morning Glory, Hairy Clustervine, Tie Vine
Jamesianthus alabamensis Alabama Warbonnet
Jasminum nudiflorum Winter Jasmine
Jeffersonia diphylla Twinleaf
Juglans cinerea Butternut, White Walnut
Juglans nigra Black Walnut
Juncus acuminatus tapertip rush
Juncus coriaceus Leathery Rush
Juncus dichotomus Forked Rush
Juncus effusus + Soft Rush, Common Rush
Juncus georgianus Georgia Rush
Juncus gymnocarpus Seep Rush, Beaked Rush
Juncus marginatus grassleaf rush
Juncus megacephalus Large-headed Rush
Juncus roemerianus Black Needle Rush
Juncus subcaudatus var. subcaudatus Somewhat-tailed Rush
Juncus tenuis Path Rush, Poverty Rush
Juncus trigonocarpus Redpod Rush
Juniperus communis var. depressa Ground Juniper, Mountain Juniper, Common Juniper
Juniperus virginiana var. silicicola Southern Red Cedar, Coastal Red Cedar
Juniperus virginiana var. virginiana Eastern Red Cedar
Justicia americana American Water-willow
Justicia angusta Pineland Water-willow, Narrowleaf Water-willow
Justicia crassifolia thickleaf water-willow
Justicia ovata var. ovata Coastal Plain Water-willow, Loose-flower Water-willow
Kallstroemia maxima Greater Caltrop
Kalmia angustifolia Northern Sheepkill, Sheep-laurel, Lamb-kill
Kalmia carolina Southern Sheepkill, Carolina Wicky, Carolina Sheep-laurel, Carolina Bog Myrtle
Kalmia cuneata White Wicky
Kalmia hirsuta Hairy Wicky
Kalmia latifolia Mountain Laurel, Ivy, Calico-bush, Mountain Ivy
Kalopanax septemlobus Castor Aralia
Kerria japonica Japanese-rose, Kerria
Koelreuteria paniculata Golden Rain-tree
Kosteletzkya virginica Southern Seashore Mallow, Seashore Marshmallow, Virginia Saltmarsh Mallow
Krameria lanceolata Trailing Ratany, Sandspur, Spreading Ratanay, trailing krameria
Krigia biflora var. biflora Orange Dwarf-dandelion, Two-flowered Dwarf-dandelion, Two-flowered Cynthia
Krigia caespitosa Opposite-leaf Dwarf-dandelion
Krigia dandelion Colonial Dwarf-dandelion, Potato Dandelion
Krigia montana Mountain Dwarf-dandelion, Mountain Cynthia
Krigia virginica Virginia Dwarf-dandelion
Kummerowia stipulacea Korean-clover, Korean Lespedeza
Kummerowia striata Japanese-clover, Common Lespedeza, Annual Lespedeza
Kyllinga pumila Annual Greenhead Sedge
Kyllinga squamulata Crested Greenhead Sedge
Lachnanthes caroliana Redroot
Lachnocaulon anceps Common Bogbuttons, Savanna Bogbuttons
Lachnocaulon beyrichianum Southern Bogbuttons
Lactuca biennis Tall Blue Lettuce
Lactuca canadensis American Wild Lettuce
Lactuca floridana var. floridana Woodland Lettuce
Lactuca graminifolia var. graminifolia Coastal Plain Lettuce, Slender Wild Lettuce
Lactuca hirsuta + Downy Lettuce
Lactuca saligna Willowleaf Lettuce
Lactuca serriola Prickly Lettuce
Lagerstroemia indica Crape-myrtle
Lamium amplexicaule Henbit
Lamium maculatum Spotted Deadnettle
Lamium purpureum var. purpureum Purple Deadnettle, Red Deadnettle
Lantana camara Common Lantana, Hedgeflower
Lantana depressa var. floridana Florida Lantana
Lantana montevidensis Trailing Shrub-verbena, Polecat-geranium
Laportea aestuans West Indian Wood Nettle
Laportea canadensis Wood Nettle
Lapsana communis Nipplewort
Larix decidua European Larch
Larix laricina Eastern Tamarack, Eastern Larch
Lathyrus hirsutus Caley Pea, Singletary Pea
Lathyrus latifolius Everlasting Pea, Perennial Sweet Pea
Lathyrus odoratus Sweet Pea
Lathyrus sylvestris Perennial Pea, Narrowleaf Everlasting Pea, Flat Peavine
Lathyrus venosus Wood Pea, Forest Pea, Bush Vetch, Veiny Pea
Leavenworthia exigua var. exigua Tennessee Gladecress, Least Glade-cress
Leavenworthia uniflora Michaux's Glade-cress
Lechea deckertii Deckert's Pinweed
Lechea racemulosa Racemose Pinweed, Oblong-fruit Pinweed
Lechea tenuifolia narrowleaf pinweed
Leersia lenticularis Catchfly Cutgrass
Leersia oryzoides Rice Cutgrass
Leersia virginica White Cutgrass, Whitegrass
Leiophyllum buxifolium Sand-myrtle, Mountain Myrtle
Leitneria floridana Corkwood, Florida Corkwood
Lemna perpusilla Tiny Duckweed, Small Duckweed
Lepidium campestre Cow Cress, Field Pepperwort, Field Cress, Field Pepperweed
Lepidium latifolium Broadleaf Pepper-grass
Lepidium virginicum var. virginicum Poor Man's Pepper, Peppergrass
Leptochloa dubia Green Sprangletop
Leptochloa panicea ssp. brachiata Red Sprangletop
Leptochloa panicea ssp. mucronata Red Spangletop
Lespedeza angustifolia Narrow-leaved Lespedeza, Narrowleaf Bush-clover
Lespedeza bicolor Bicolor Lespedeza, Bicolor, Shrubby Lespedeza
Lespedeza capitata Round-headed Bush-clover, Round-headed Lespedeza, Silvery Bush-clover
Lespedeza cuneata Sericea Lespedeza, Chinese Lespedeza
Lespedeza frutescens Violet Lespedeza
Lespedeza hirta + Hairy Bush-clover, Hairy Lespedeza, Silvery Lespedeza
Lespedeza procumbens Downy Trailing Lespedeza, Trailing Bush-clover
Lespedeza repens Smooth Trailing Lespedeza, Creeping Lespedeza, Creeping Bush-clover
Lespedeza stuevei Velvety Lespedeza, Stueve's Bush-clover
Lespedeza thunbergii Thunberg's Lespedeza
Lespedeza violacea Wand Lespedeza, Wandlike Bush-clover, Violet Bush-clover
Lespedeza virginica Virginia Lespedeza, Slender Lespedeza, Virginia Bush-clover, Slender Bush-clover
Leucaena leucocephala White Leadtree, Leucaena, Jumbie-bean
Leucanthemum vulgare Ox-eye Daisy, Common Daisy
Leucojum aestivum ssp. aestivum Summer Snowflake
Leucothoe axillaris Coastal Doghobble, Coastal Plain Doghobble
Leucothoe fontanesiana Mountain Doghobble, Switch-ivy
Liatris aspera var. intermedia Rough Blazing-star
Liatris chapmanii Chapman's Blazing-star
Liatris cokeri Sandhills Blazing-star
Liatris elegans var. elegans Common Elegant Blazing-star
Liatris garberi Garber’s Blazing-star
Liatris helleri Smooth Blazing-star, Heller's Blazing-star
Liatris microcephala Narrow-leaf Blazing-star, Small-head Blazing-star
Liatris pauciflora Sandhills Blazing-star, One-sided Blazing-star
Liatris pilosa Grass-leaved Blazing-star
Liatris pycnostachya + Prairie Blazing-star
Liatris scariosa var. scariosa Northern Blazing-star
Liatris spicata var. resinosa Dense Blazing-star, Bog Blazing-star
Liatris spicata var. spicata Dense Blazing-star, Mountain Blazing-star, Florist's Gayfeather, Dense Gayfeather
Liatris squarrosa var. squarrosa Scaly Blazing-star, Squarrose Gayfeather, Longbracted Blazing-star
Liatris squarrulosa Southern Blazing-star, Earle's Blazing-star
Liatris tenuifolia var. tenuifolia Shortleaf Blazing-star, Shortleaf Gayfeather, Slender Blazing-star
Liatris virgata wand blazing star
Licania michauxii Gopher-apple, Ground-oak
Ligusticum canadense American Lovage
Ligustrum amurense Amur Privet
Ligustrum japonicum Japanese Privet
Ligustrum lucidum Glossy Privet, Broadleaf Privet
Ligustrum obtusifolium Border Privet
Ligustrum ovalifolium California Privet
Ligustrum sinense Chinese Privet
Ligustrum vulgare European Privet, Common Privet
Lilaeopsis carolinensis Carolina Lilaeopsis
Lilaeopsis chinensis Marsh Lilaeopsis
Lilium canadense ssp. canadense Yellow Canada Lily, Wild Yellow Lily
Lilium canadense ssp. editorum Red Canada Lily
Lilium catesbaei + Pine Lily, Catesby's Lily, Leopard Lily
Lilium grayi Gray's Lily, Roan Lily
Lilium iridollae Sandhills Lily, Sandhills Bog Lily
Lilium lancifolium Tiger Lily
Lilium michauxii Carolina Lily
Lilium michiganense Michigan Lily
Lilium philadelphicum var. philadelphicum Wood Lily
Lilium superbum Turk's Cap Lily
Limnobium spongia American Frogsbit, Spongeplant
Limnophila sessiliflora Asian Marshweed
Limonium carolinianum Carolina Sea-lavender
Linaria dalmatica ssp. dalmatica Dalmation Toadflax
Linaria purpurea purple toadflax
Linaria vulgaris Butter-and-eggs, Yellow Toadflax, Wild-snapdragon
Lindera benzoin var. benzoin Northern Spicebush, Wild Allspice
Lindera melissifolia Southern Spicebush, Pondberry
Lindera subcoriacea Bog Spicebush, Streamhead Spicebush
Lindernia dubia var. dubia Yellowseed False Pimpernel
Lindernia monticola Flatrock Pimpernel, Riverbank Pimpernel, False Pimpernel
Linum floridanum var. chrysocarpum Yellow-fruited Yellow Flax, Florida yellow flax
Linum floridanum var. floridanum Florida Yellow Flax, Savanna Flax
Linum intercursum Bicknell's Yellow Flax, sandplain flax
Linum medium var. texanum Texas Yellow Flax, Stiff Yellow Flax, Spreading Flax, Texas Flax
Linum striatum Ridgestem Yellow Flax, Ridged Yellow Flax
Linum virginianum Virginia Yellow Flax, Woodland Flax
Liparis liliifolia Lily-leaved Twayblade, Large Twayblade, Mauve Sleekwort, Brown Wide-lip Orchid
Liquidambar styraciflua Sweetgum
Liriodendron tulipifera Tulip-tree, Yellow Poplar, Whitewood
Liriope graminifolia Liriope, Lilyturf
Liriope muscari Liriope, Big Blue Lilyturf
Liriope spicata Liriope, Creeping Lilyturf
Listera australis Southern Twayblade
Listera smallii Kidneyleaf Twayblade, Appalachian Twayblade, Small's Twayblade
Lithospermum canescens Hoary Puccoon, Indian-paint
Lithospermum caroliniense var. caroliniense Coastal Plain Puccoon, Hairy Puccoon, Sandhill Puccoon
Lithospermum latifolium American Gromwell, Broadleaf Gromwell
Lithospermum tuberosum Southern Stoneseed
Litsea aestivalis Pondspice
Lobelia amoena var. amoena Southern Lobelia
Lobelia boykinii Boykin's Lobelia
Lobelia cardinalis Cardinal Flower
Lobelia elongata Purple Lobelia, Streamside Lobelia
Lobelia glandulosa Savanna Lobelia
Lobelia inflata Indian-tobacco, Pukeweed
Lobelia nuttallii Nuttall's Lobelia
Lobelia paludosa White Lobelia
Lobelia puberula + Downy Lobelia, Hairy Lobelia
Lobelia siphilitica var. siphilitica Great Blue Lobelia
Lobelia spicata var. scaposa Spiked Lobelia, Pale Spiked Lobelia
Lobelia spicata var. spicata Spiked Lobelia, Pale Spiked Lobelia
Lolium perenne ssp. multiflorum Italian Ryegrass, Annual Ryegrass
Lolium perenne ssp. perenne English Rye-grass, Perennial Rye-grass
Lolium temulentum ssp. temulentum Darnel rye-grass
Lonicera √óbella [morrowii √ó tatarica] Bell's Honeysuckle, Pretty Honeysuckle
Lonicera canadensis American Fly-honeysuckle, Fly-honeysuckle
Lonicera dioica Smooth Honeysuckle, Mountain Coral Honeysuckle, Lonicera
Lonicera flava Yellow Honeysuckle
Lonicera fragrantissima Sweet-breath-of-spring, Winter Honeysuckle
Lonicera japonica Japanese Honeysuckle
Lonicera maackii Amur Bush-honeysuckle, Amur Honeysuckle
Lonicera morrowii Morrow's Honeysuckle
Lonicera sempervirens Coral Honeysuckle, Woodbine, Trumpet Honeysuckle
Lonicera standishii Standish's Honeysuckle
Lonicera tatarica Tatarian Honeysuckle
Lonicera xylosteum European Fly-honeysuckle, Dwarf Honeysuckle
Lophiola aurea Goldencrest
Lotus corniculatus Birdsfoot-trefoil, Eggs-and-Bacon
Lotus glaber Slender Birdsfoot-trefoil
Ludwigia alternifolia Alternate-leaf Seedbox
Ludwigia arcuata piedmont primrose-willow
Ludwigia brevipes Long Beach Seedbox, Coastal Plain Water-purslane
Ludwigia decurrens Wingstem Water-primrose
Ludwigia grandiflora ssp. grandiflora Showy Water-primrose
Ludwigia grandiflora ssp. hexapetala Common Water-primrose
Ludwigia hirtella Rafinesque's Seedbox
Ludwigia leptocarpa Water-willow, Primrose Willow
Ludwigia maritima Harper's Seedbox
Ludwigia palustris Common Water-purslane, Marsh Purslane
Ludwigia repens Creeping Seedbox
Ludwigia suffruticosa Shrubby Seedbox
Ludwigia virgata Savanna Seedbox, Slender Seedbox
Lunaria annua Annual Honesty, Money Plant, Silver-dollar Plant
Lupinus angustifolius Narrowleaf Lupine
Lupinus diffusus Blue Sandhill Lupine, Sky-blue Lupine
Lupinus perennis ssp. gracilis Southern Sundial Lupine
Lupinus perennis ssp. perennis var. perennis Northern Sundial Lupine
Lupinus villosus Lady Lupine, Pink Sandhill Lupine
Luzula acuminata ssp. acuminata hairy woodrush
Luzula acuminata ssp. carolinae Carolina woodrush
Luzula bulbosa bulbous woodrush
Luzula echinata Hedgehog Woodrush, Spreading Woodrush
Luzula multiflora ssp. multiflora var. multiflora woodrush
Lychnis coronaria Mullein-pink, Rose Campion
Lychnis flos-cuculi Ragged Robin
Lycium carolinianum var. carolinianum Christmas-berry, Carolina Matrimony-vine
Lycopodiella alopecuroides Foxtail Clubmoss, Foxtail Bog Clubmoss
Lycopodiella appressa Southern Bog Clubmoss
Lycopodiella caroliniana var. caroliniana Carolina Bog Clubmoss, Slender Clubmoss
Lycopodiella cernua var. cernua Nodding Clubmoss, Staghorn Clubmoss
Lycopodiella prostrata Featherstem Clubmoss, Prostrate Bog Clubmoss
Lycopodium annotinum Stiff Clubmoss, Bristly Clubmoss
Lycopodium clavatum Staghorn Clubmoss, Running Clubmoss, Ground-pine
Lycopodium dendroideum Tree Ground-pine, Round-branch Clubmoss, Prickly Tree-clubmoss
Lycopodium digitatum Common Running-cedar, Fan Ground-pine, Running Ground-pine, Common Running-pine
Lycopodium hickeyi Pennsylvania Ground-pine, Hickey's Tree-clubmoss
Lycopodium obscurum Common Ground-pine, Flat-branched Tree-clubmoss
Lycopodium tristachyum Blue Running-cedar, Ground-cedar
Lycopus rubellus Stalked Bugleweed
Lycopus virginicus Virginia Bugleweed
Lycoris radiata Magic Lily, Hurricane Lily, Surprise Lily, Spider Lily
Lygodesmia aphylla Rose-rush, Flowering Straw
Lygodium japonicum Japanese Climbing Fern
Lygodium microphyllum Old World Climbing Fern, Small-leaf Climbing Fern
Lygodium palmatum American Climbing Fern
Lyonia ferruginea Rusty Lyonia, Staggerbush, Dragonwood, Crookedwood
Lyonia fruticosa Staggerbush, Poor-grub
Lyonia ligustrina var. ligustrina Northern Maleberry, He-huckleberry
Lyonia lucida Shining Fetterbush, Lyonia, Hemleaf
Lyonia mariana Staggerbush
Lysimachia asperulifolia Pocosin Loosestrife, "Roughleaf Loosestrife"
Lysimachia ciliata Fringed Loosestrife
Lysimachia clethroides Gooseneck Loosestrife
Lysimachia fraseri Fraser's Loosestrife
Lysimachia graminea Grassleaf Yellow-loosestrife
Lysimachia hybrida Lowland Loosestrife
Lysimachia lanceolata Lanceleaf Loosestrife
Lysimachia loomisii Carolina Loosestrife
Lysimachia nummularia Moneywort, Creeping Jenny, Creeping Charlie
Lysimachia quadriflora Prairie Loosestrife, Smooth Loosestrife, Four-flowered Loosestrife
Lysimachia quadrifolia Whorled Loosestrife
Lysimachia terrestris Swamp Candles, Bog-candles, Bog Loosestrife
Lysimachia tonsa Southern Loosestrife, Appalachian Loosestrife
Lysimachia vulgaris Garden Loosestrife
Lythrum alatum var. alatum Northern Winged Loosestrife
Lythrum salicaria Purple Loosestrife
Macbridea caroliniana Carolina Birds-in-a-nest, Carolina Macbridea, Carolina Bogmint
Maclura pomifera Osage-orange, Hedge-apple, Bow-wood
Macroptilium lathyroides Wild Bushbean
Macrothelypteris torresiana Mariana Maiden Fern, Swordfern
Magnolia acuminata Cucumber Magnolia, Cucumber-tree
Magnolia acuminata Yellow Cucumber-tree, Showy Cucumber Magnolia
Magnolia ashei Ashe's Magnolia
Magnolia fraseri Fraser Magnolia, Mountain Magnolia, Earleaf Umbrella-tree, Umbrella Tree
Magnolia grandiflora Southern Magnolia, Bull Bay
Magnolia macrophylla Bigleaf Magnolia, Large-leaved Magnolia, Umbrella Tree
Magnolia pyramidata Pyramid Magnolia
Magnolia tripetala Umbrella Magnolia, Umbrella-tree
Magnolia virginiana Sweetbay, Sweetbay Magnolia, Swampbay
Mahonia bealei Leatherleaf Mahonia, Chinese Mahonia, Holly-grape
Mahonia nervosa Cascade Oregon Grape, Cascades Mahonia
Mahonia repens Creeping Oregon Grape
Maianthemum canadense Canada Mayflower, False Lily-of-the-valley, Wild Lily-of-the-valley
Maianthemum racemosum ssp. racemosum False Solomon's Seal, Eastern Solomon's Plume
Maianthemum stellatum Starry Solomon's Seal, Starry Solomon's Plume, Starflower
Malaxis bayardii Appalachian Adder's-mouth Orchid
Malaxis spicata Florida Adder's-mouth Orchid
Malaxis unifolia Green Adder's-mouth Orchid
Malus angustifolia var. angustifolia Southern Crabapple, Wild Crabapple
Malus baccata Siberian Crabapple
Malus coronaria Wild Crabapple, Sweet Crabapple
Malus pumila Common Apple
Malva moschata Marsh Mallow, Musk Mallow, Rose Mallow
Malvaviscus arboreus var. arboreus Wax Mallow
Malvaviscus arboreus var. drummondii Wax Mallow, Turk's-cap Mallow
Malvaviscus penduliflorus Turk’s-cap Mallow, Mazapan
Manfreda virginica Eastern False Aloe, Rattlesnake-master
Marshallia caespitosa Barbara's Buttons
Marshallia graminifolia var. cynanthera Grassleaf Barbara's-buttons
Marshallia graminifolia var. graminifolia Grassleaf Barbara's-buttons
Marshallia grandiflora Appalachian Barbara's-buttons, Large-flowered Barbara's-buttons
Marshallia legrandii Oak Barrens Barbara's-buttons
Marshallia mohrii Coosa Barbara's-buttons
Marshallia obovata var. obovata Piedmont Barbara's-buttons, Spoon-leaved Barbara's-buttons
Marshallia obovata var. scaposa Savanna Barbara's-buttons
Marshallia ramosa Pineland Barbara's-buttons, Southern Barbara's-buttons
Marshallia trinervia Colonial Barbara's-buttons, Broadleaf Barbara's-buttons
Marsilea macropoda Golden Waterclover, Big-footed Waterclover
Marsilea minuta Dwarf Waterclover, Small Waterclover
Marsilea mutica Australian Waterclover, Nardoo
Marsilea quadrifolia European Waterclover, European Pepperwort, European Water Shamrock
Matelea carolinensis Carolina Spinypod, Climbing Milkweed, Climbing Milkvine
Matelea decipiens Deceptive Spinypod
Matelea flavidula Yellow Spinypod
Matelea gonocarpos Eastern Anglepod
Matelea obliqua Northern Spinypod, Limerock Milkvine, Climbing Milkvine
Matricaria discoidea Pineapple-weed, Rayless Chamomile
Mayaca fluviatilis Bogmoss
Mazus miquelii Creeping Mazus, Miquel's mazus
Mazus pumilus Japanese Mazus
Mecardonia acuminata var. acuminata Mecardonia, Common Axilflower
Medeola virginiana Indian Cucumber-root
Medicago arabica Spotted Medick, Spotted Bur-clover
Medicago lupulina Black Medick, Yellow Trefoil
Medicago sativa ssp. sativa Alfalfa, Lucerne, Blue Alfalfa
Meehania cordata Meehania
Melaleuca quinquenervia Paperbark Tree , Meleleuca, Punktree
Melampyrum lineare + Cow-wheat
Melanthera angustifolia Everglades squarestem
Melanthera nivea Melanthera, Snow Squarestem
Melia azedarach Chinaberry, Pride-of-India
Melica mutica Melic Grass, Two-flower Melic
Melilotus indicus Small Melilot, Sourclover
Melilotus officinalis White Sweetclover, White Melilot
Melilotus officinalis Yellow Sweetclover, Yellow Melilot, Ribbed Melilot
Melinis repens Rose Natalgrass
Melochia corchorifolia Chocolate-weed
Melochia spicata Bretonica Peluda
Melothria pendula var. pendula Creeping Cucumber
Menispermum canadense Moonseed, Yellow Parilla
Mentha arvensis Canada Mint, Field Mint, Wild Mint
Mentha spicata Spearmint
Mentha Xpiperita [aquatica X spicata] Peppermint
Menziesia pilosa Minniebush
Mertensia virginica Virginia Bluebells, Virginia Cowslip
Micranthemum umbrosum Shade Mudflower
Microstegium vimineum Japanese Grass, Japanese Stiltgrass, Nepalese Browntop, Nepal Grass
Microthlaspi perfoliatum Perfoliate Penny-cress, Thoroughwort Penny-cress
Mikania cordifolia Heartleaf Climbing Hempweed
Mikania scandens Climbing Hempweed
Mimosa microphylla Eastern Sensitive-briar
Mimosa quadrivalvis var. floridana Florida Sensitive-briar, Sensitive Vine, Powderpuff Mimosa
Mimosa strigillosa Mimosa Vine, Sensitive Vine, Powderpuff Mimosa
Mimulus alatus Winged Monkey-flower, Sharpwing Monkey Flower
Mimulus ringens var. ringens Allegheny Monkey-flower, Square-stemmed Monkey-flower
Minuartia caroliniana Carolina Sandwort, Longroot
Minuartia glabra Appalachian Sandwort
Minuartia godfreyi Godfrey's Sandwort
Minuartia groenlandica Greenland Sandwort, Mountain Sandwort
Minuartia patula Lime-barren Sandwort, Glade Sandwort
Minuartia uniflora Piedmont Sandwort
Mirabilis jalapa Garden Four-o'clock, Marvel-of-Peru
Mirabilis nyctaginea Wild Four-o'clock, Heart-leaved Umbrella-wort
Miscanthus sacchariflorus Amur Silvergrass
Miscanthus sinensis Chinese Silvergrass
Mitchella repens Partridgeberry, Twinflower
Mitella diphylla Two-leaved Miterwort, Bishop's Cap
Mitreola petiolata Caribbean Miterwort
Modiola caroliniana Carolina Bristlemallow, Bristly-mallow, Carolina Mallow
Mollugo verticillata Carpetweed, Indian-chickweed
Momordica charantia Balsam-apple, Bitter Melon, Balsam-pear
Monarda citriodora ssp. citriodora var. citriodora Lemon Bergamot, Lemon Mint
Monarda clinopodia Basil Bergamot, Basil Balm
Monarda didyma Bee-balm, Oswego Tea
Monarda fistulosa + Wild Bergamot
Monarda media Purple Bee-balm
Monarda punctata ssp. punctata var. punctata Eastern Horse-mint, Spotted Bee-balm
Monotropa hypopithys Pinesap
Monotropa uniflora Indian Pipes, Ghost Flower
Monotropsis odorata Appalachian Pygmy Pipes, Sweet Pinesap
Morella caroliniensis Pocossin Bayberry, Evergreen Bayberry, Swamp Candleberry, Southern Bayberry
Morella cerifera Common Wax Myrtle, Southern Bayberry
Morella cerifera Dwarf Wax Myrtle, Dwarf Bayberry
Morella inodora Scentless Bayberry, Odorless Bayberry
Morella pensylvanica Northern Bayberry
Morus alba White Mulberry, Silkworm Mulberry, Russian Mulberry
Morus rubra var. rubra Red Mulberry
Mosla dianthera Miniature Beefsteak-plant, Mosla
Muhlenbergia capillaris Pink Muhlygrass, Upland Muhly, Hairawn Muhly, Hairgrass
Muhlenbergia expansa Savannah Hairgrass
Muhlenbergia filipes Dune Hairgrass, Sweetgrass
Muhlenbergia mexicana Hairy Wirestem Muhly
Muhlenbergia schreberi Nimblewill
Muhlenbergia sylvatica Woodland Muhly
Muhlenbergia tenuiflora Slender Muhly
Murdannia keisak Murdannia, Asian Spiderwort, Marsh Dayflower, Wart-removing Herb
Murdannia nudiflora Doveweed
Muscari botryoides Compact Grape-hyacinth
Muscari neglectum Grape-hyacinth, Blue Bottles
Myosotis arvensis Field Forget-me-not, Field Scorpion-grass
Myosotis discolor Yellow-and-blue Scorpion-grass, Changing Forget-me-not
Myosotis laxa Smaller Forget-me-not, Marsh Forget-me-not, Tufted Forget-me-not
Myosotis macrosperma Bigseed Forget-me-not, Scorpion-grass
Myosotis scorpioides Water Scorpion-grass, True Forget-me-not
Myosotis stricta Blue Scorpion-grass
Myosotis verna Spring Forget-me-not, Early Forget-me-not, Early Scorpion-grass
Myosoton aquaticum Water-chickweed, Giant Chickweed, Water Mouse-ear
Myosurus minimus Mousetail
Myrica gale Sweet Gale
Myriophyllum aquaticum Parrot-feather
Myriophyllum heterophyllum Southern Water-milfoil, Variable-leaf Water-milfoil
Myriophyllum laxum Loose Water-milfoil, Sandhills Milfoil, Lax Water-milfoil, Piedmont Water-milfoil
Myriophyllum sibiricum Common Water-milfoil
Myriophyllum spicatum Eurasian Water-milfoil
Myriophyllum verticillatum Water-milfoil
Najas guadalupensis ssp. guadalupensis Common Naiad, Southern Naiad
Najas minor Spinyleaf Naiad
Nama jamaicense Jamaica Weed
Nandina domestica Nandina, Heavenly Bamboo, Sacred-bamboo
Narcissus pseudonarcissus Daffodil
Nassella trichotoma Serrated Tussockgrass, Nassella Tussock, Yass River Tussock
Nasturtium microphyllum Narrow-fruited Watercress, Onerow Yellowcress
Nasturtium officinale Watercress
Nelumbo lutea Yonkapin, American Lotus-lily, Yellow Nelumbo, Pond-nuts
Nelumbo nucifera Sacred Lotus, Oriental Lotus-lily, Pink Lotus
Nemophila aphylla Baby Blue Eyes
Nepeta cataria Catnip, Catmint
Nephrolepis cordifolia Narrow Sword Fern, Tuber Sword Fern, Fishbone Fern, Ladder Fern
Nerium oleander Oleander
Nestronia umbellula Nestronia, Conjurer's-nut, Leechbush
Neviusia alabamensis Alabama Snow-wreath, Neviusia
Nicandra physalodes Apple-of-Peru
Nolina georgiana Georgia Beargrass, Sandhills Lily
Nothoscordum bivalve False Garlic, Grace Garlic
Nuphar lutea ssp. advena Broadleaf Pondlily, Cow-lily, Spatterdock, Yellow Pond Lily
Nuphar lutea ssp. sagittifolia Narrowleaf Pondlily, Cow-lily, Spatterdock, Bonnets
Nuttallanthus canadensis Oldfield Toadflax, Common Toadflax
Nuttallanthus texanus Texas Toadflax
Nymphaea elegans Tropical Blue Water-lily
Nymphaea mexicana Yellow Water-lily, Banana Water-lily
Nymphaea odorata ssp. odorata Fragrant White Water-lily, American Water-lily, Sweet Water-lily
Nymphoides aquatica Big Floating Heart, Banana Floating Heart
Nymphoides cordata Little Floating Heart
Nymphoides cristata Crested Floating Heart, Water Snowflake
Nymphoides peltata Yellow Floating Heart
Nyssa aquatica Water Tupelo, Cotton Gum, Tupelo Gum
Nyssa biflora Swamp Tupelo, Swamp Blackgum, Swamp Gum, Water Gum
Nyssa ogeche Ogeechee Tupelo, Ogeechee Lime, Ogeechee Plum
Nyssa sylvatica Blackgum, Black Tupelo, Sour Gum
Nyssa ursina Bear Tupelo, Apalachicola Tupelo
Obolaria virginica Pennywort
Oclemena acuminata Whorled Wood Aster, Floral Wood Aster, Whorled Aster, Whorled Nodding-aster
Oclemena reticulata Pine-barren Aster, Whitetop Aster
Oenanthe javanica Water Celery, Water Parsley, Java Dropwort, Seri
Oenothera argillicola Shale-barren Evening Primrose, Shale Evening Primrose
Oenothera biennis Common Evening Primrose
Oenothera drummondii Beach Evening Primrose, Drummond's Evening Primrose
Oenothera fruticosa + Northern Sundrops, Appalachian Sundrops
Oenothera fruticosa ssp. fruticosa Southern Sundrops
Oenothera fruticosa ssp. glauca Riverbank Evening Primrose, Riverbank Sundrops
Oenothera humifusa Dunes Evening Primrose, Seabeach Evening Primrose, Spreading Evening Primrose
Oenothera laciniata Cutleaf Evening Primrose
Oenothera linifolia Threadleaf Sundrops, Flaxleaf Sundrops
Oenothera perennis Little Sundrops, Small Sundrops
Oenothera speciosa Showy Evening Primrose, White Evening Primrose, Pink-ladies
Oenothera triloba Stemless Evening Primrose
Oldenlandia boscii Bosc's Bluet
Oldenlandia corymbosa Diamond-flower
Oligoneuron album White Prairie-goldenrod, Upland White Aster
Oligoneuron riddellii Riddell's Goldenrod
Oligoneuron rigidum var. glabratum Southeastern Bold Goldenrod
Oligoneuron rigidum var. rigidum Hard-leaved Goldenrod, Stiff Goldenrod, Midwestern Bold Goldenrod
Onoclea sensibilis Sensitive Fern, Bead Fern
Onosmodium bejariense var. occidentale Western Marbleseed
Onosmodium virginianum Virginia Marbleseed, False Gromwell
Ophioglossum crotalophoroides var. crotalophoroides Bulbous Adder's-tongue, Dwarf Adder's Tongue
Ophioglossum engelmannii Engelmann's Adder's-tongue, Limestone Adder's-tongue
Ophioglossum nudicaule Slender Adder's-tongue
Ophioglossum petiolatum Longstem Adder's-tongue, Stalked Adder's-tongue Fern
Ophioglossum vulgatum Southern Adder's-tongue
Ophiopogon japonicus Mondo Grass, Black Mondo, Monkeygrass
Oplismenus hirtellus ssp. setarius Woods-grass, Bristle Basketgrass
Oplismenus hirtellus ssp. undulatifolius Wavyleaf Basketgrass
Opuntia dillenii Coastal Prickly Pear, Shell Midden Prickly-pear, Yaaxpakan
Opuntia humifusa Eastern Prickly Pear
Opuntia humifusa Common Eastern Prickly Pear
Opuntia humifusa Eastern Prickly Pear
Opuntia pusilla Dune Prickly Pear, Dune Devil-joint, Devils-joint Cactus
Opuntia stricta Coastal Prickly Pear, Shell Midden Prickly-pear
Orbexilum pedunculatum var. pedunculatum Western Sampson's Snakeroot
Orbexilum pedunculatum var. psoralioides Eastern Sampson's Snakeroot
Orbexilum virgatum Pineland Leatherroot, Slender Leatherroot, Pineland Scurf-pea
Ornithogalum nutans Drooping Star of Bethlehem
Ornithogalum umbellatum Star of Bethlehem
Orobanche minor Lesser Broomrape
Orobanche ramosa Branching Broomrape, Hemp Broomrape
Orobanche uniflora One-flowered Cancer-root, One-flowered Broomrape
Orontium aquaticum Golden Club, Never-wet, Bog Torches
Osmanthus americanus var. americanus Devilwood, Wild Olive
Osmanthus fragrans Fragrant Tea Olive
Osmorhiza claytonii Bland Sweet Cicely, Hairy Sweet Cicely
Osmorhiza longistylis Anise-root, Smooth Sweet Cicely
Osmunda cinnamomea var. cinnamomea Cinnamon Fern
Osmunda claytoniana Interrupted Fern
Osmunda regalis var. spectabilis American Royal Fern
Ostrya virginiana var. virginiana American Hop-hornbeam, Ironwood, Eastern Hop-hornbeam
Ottelia alismoides Duck lettuce
Oxalis corniculata Creeping Lady's-sorrel
Oxalis debilis var. corymbosa pink woodsorrel
Oxalis dillenii Southern Yellow Wood-sorrel
Oxalis grandis Large Wood-sorrel, Great Yellow Wood-sorrel
Oxalis montana Mountain Wood-sorrel, American Wood-sorrel, Wood Shamrock, White Wood-sorrel
Oxalis priceae ssp. colorea tufted yellow wood-sorrel
Oxalis priceae ssp. colorea tufted yellow wood-sorrel, Small's wood-sorrel, (NOT Sadie Price’s Yellow Wood-sorrel)
Oxalis priceae ssp. priceae Sadie Price’s Yellow Wood-sorrel
Oxalis rubra windowbox wood-sorrel
Oxalis stricta Common Yellow Wood-sorrel
Oxalis violacea Violet Wood-sorrel
Oxycaryum cubense Cuban Bulrush
Oxydendrum arboreum Sourwood, Sorrel-tree
Oxypolis canbyi Canby's Cowbane, Canby's Dropwort
Oxypolis filiformis Water Dropwort
Oxypolis rigidior Cowbane, Pig-potato, Stiff Cowbane
Oxypolis ternata Savanna Cowbane
Pachysandra procumbens Allegheny Spurge, Mountain Pachysandra
Pachysandra terminalis Pachysandra, Japanese Spurge
Packera anonyma Small's Ragwort, Squaw-weed, Appalachian Ragwort
Packera aurea Golden Ragwort, Heartleaf Ragwort
Packera glabella Butterweed, Smooth Ragwort, Yellowtop
Packera millefolium Blue Ridge Ragwort, Yarrowleaf Ragwort, Divided-leaf Ragwort
Packera obovata Roundleaf Ragwort, Roundleaf Groundsel, Spatulate-leaved Ragwort, Running Ragwort
Packera paupercula Balsam Ragwort, Northern Meadow Groundsel
Packera paupercula Ragwort, Groundsel
Packera plattensis Appalachian Ragwort
Packera schweinitziana Robbins' Ragwort, New England Ragwort, New England Groundsel
Packera serpenticola Buck Creek Ragwort
Packera tomentosa Woolly Ragwort
Paederia foetida Skunk-vine
Panax quinquefolius American Ginseng, Sang
Panax trifolius Dwarf Ginseng
Panicum amarum var. amarulum Southern Seabeach Grass
Panicum amarum var. amarum Seaside Panicum, Bitter Seabeach Grass
Panicum anceps Beaked Panicum, Beaked Panicgrass
Panicum anceps Small Beaked Panicum, Small Beaked Panicgrass
Panicum capillare Witchgrass, Old-witch grass, Tumbleweed, Tickle Grass
Panicum dichotomiflorum var. dichotomiflorum Fall Panicum, Fall Panicgrass, Spreading Panicgrass
Panicum repens Torpedo Grass
Panicum rigidulum var. rigidulum Redtop Panic Grass
Panicum rigidulum var. rigidulum Dense Panic Grass
Panicum virgatum var virgatum Savanna Panic-grass, Coastal Plain Switchgrass, Blunt Panic Grass
Panicum virgatum var. virgatum Switchgrass , Prairie Switchgrass
Papaver dubium Long-headed Poppy, Blind Eyes
Papaver rhoeas Corn Poppy, Field Poppy, Red Poppy, Flanders Poppy
Papaver somniferum Opium Poppy, Breadseed Poppy
Parapholis incurva Sickle Grass, Hard Grass, Thin-tail
Parietaria floridana Florida Pellitory
Parkinsonia aculeata Jerusalem Thorn, Crown-of-Thorns, Horse-bean, Mexican Palo Verde
Parnassia asarifolia Kidneyleaf Grass-of-Parnassus, Appalachian Grass-of-Parnassus, Brook Parnassia
Parnassia caroliniana Carolina Grass-of-Parnassus, Savanna Parnassia, Eyebright
Parnassia grandifolia Bigleaf Grass-of-Parnassus, Limeseep Parnassia
Paronychia argyrocoma Silverling, Silver Whitlow-wort
Paronychia canadensis Forked Chickweed, Canada Whitlow-wort
Paronychia virginica Yellow Nailwort, Virginia Whitlow-wort
Parthenium hysterophorus Santa Maria Feverfew
Parthenium integrifolium var. integrifolium Common Wild Quinine
Parthenocissus quinquefolia Virginia Creeper
Parthenocissus vitacea Thicket Creeper, Woodbine
Paspalidium geminatum + Alligator Grass, Paspalidium
Paspalum bifidum Pitchfork Paspalum, Pitchfork Crown Grass
Paspalum conjugatum Sour Paspalum
Paspalum dilatatum Dallis Grass
Paspalum floridanum Florida Paspalum
Paspalum fluitans Water Paspalum, Horsetail Crown Grass
Paspalum laeve field paspalum
Paspalum notatum var. notatum Bahia Grass
Paspalum praecox Crown Grass
Paspalum quadrifarium Tussock Paspalum
Paspalum scrobiculatum Ricegrass Paspalum, Indian Paspalum
Paspalum urvillei Vasey Grass
Paspalum vaginatum Sand Knotgrass, Seashore Crown Grass
Passiflora incarnata Passionflower, Maypop
Passiflora lutea Yellow Passionflower
Pastinaca sativa Parsnip
Paulownia tomentosa Princess Tree, Empress Tree, Royal Paulownia
Paxistima canbyi Canby's Mountain Lover, Ratstripper, Cliff-green
Pectis prostrata spreading chinchweed
Pedicularis canadensis ssp. canadensis Wood Betony, Eastern Lousewort, Fernleaf
Pedicularis lanceolata Swamp Lousewort
Pediomelum canescens Buckroot, Eastern Prairie-turnip, Hoary Scurfpea
Pediomelum subacaule Nashville Breadroot
Pellaea atropurpurea Purple Cliffbrake
Pellaea ternifolia ssp. arizonica Arizona Cliffbrake
Pellaea wrightiana Wright's Cliffbrake
Peltandra sagittifolia White Arrow-arum, White Arum, Spoonflower
Peltandra virginica Green Arrow-arum, Tuckahoe
Pennisetum alopecuroides Chinese Fountaingrass
Pennisetum ciliare Buffelgrass
Pennisetum glaucum Pearl Millet
Pennisetum setaceum Tender Fountaingrass
Penstemon australis Downy Beardtongue, Sandhill Beardtongue, Southern Beardtongue, Southeastern Beardtongue
Penstemon calycosus Longsepal Beardtongue
Penstemon canescens Appalachian Beardtongue, Gray's Beardtongue
Penstemon digitalis Foxglove Beardtongue, Tall White Beardtongue
Penstemon dissectus Georgia Beardtongue, Grit Beardtongue
Penstemon hirsutus Northeastern Beardtongue, Hairy Beardtongue
Penstemon laevigatus Smooth Beardtongue, Eastern Beardtongue
Penstemon multiflorus Manyflower Beardtongue
Penstemon pallidus Pale Beardtongue, Eastern White Beardtongue
Penstemon smallii Small's Penstemon, Blue Ridge Beardtongue, Small's Beardtongue
Pentalinon luteum hammock viper's-tail, Wild Allamanda
Penthorum sedoides Ditch Stonecrop, American Penthorum
Peperomia pellucida Pepper-elder, Man-to-man, Rat-ear
Perilla frutescens var. frutescens Beefsteak Plant, Perilla
Periploca graeca Silkvine
Persea borbonia Red Bay
Persea palustris Swamp Bay
Petunia √óatkinsiana [P. axillaris √ó integrifolia] Garden Petunia
Phacelia bipinnatifida Fernleaf Phacelia, Purple Phacelia, Forest Phacelia
Phacelia dubia var. dubia Appalachian Phacelia, Small-flowered Scorpion Weed
Phacelia dubia var. georgiana Georgia Phacelia
Phacelia fimbriata Fringed Phacelia, Blue Ridge Phacelia
Phacelia maculata Flatrock Phacelia, Spotted Phacelia
Phacelia purshii Miami-mist
Phalaris arundinacea Reed Canarygrass, Ribbongrass
Phalaris canariensis Canarygrass, Birdseed Grass
Phanopyrum gymnocarpon Swamp Phanopyrum, Savanna Phanopyrum
Phaseolus polystachios var. polystachios Wild Bean, Wild Kidney Bean
Phaseolus polystachios var. sinuatus Sandhills Bean, Trailing Wild Bean
Phegopteris hexagonoptera Broad Beech Fern
Phellodendron amurense Northern Cork-tree, Amur Cork-tree, Japanese Cork-tree
Phemeranthus mengesii Menges' Fameflower, Large-flowered Fameflower, Menges' Rock-pink, Large-flowered Rock-pink
Phemeranthus mengesii Piedmont Rock-pink
Phemeranthus teretifolius Appalachian Fameflower, Appalachian Rock-pink, Rock Portulaca
Philadelphus coronarius European Mock-orange, Sweet Mock-orange
Philadelphus hirsutus Hairy Mock-orange, Cumberland Mock-orange
Philadelphus inodorus Appalachian Mock-orange
Philadelphus pubescens + Ozark Mock-orange, Hairy Mock-orange
Philydrum lanuginosum Woolly Frogsmouth, Frogmouth, Woolly Waterlily
Phlebodium aureum Goldfoot Fern, Golden Polypody
Phleum pratense Timothy
Phlox amoena ssp. amoena Hairy Phlox, Chalice Phlox
Phlox amplifolia Broadleaf Phlox
Phlox bifida ssp. bifida Cleft Phlox, Sand Phlox
Phlox buckleyi Swordleaf Phlox, Shale-barren Phlox
Phlox carolina + Carolina Phlox , Thick-leaf Phlox, Giant Phlox
Phlox divaricata + Eastern Blue Phlox, Timber Phlox, Blue Woodland Phlox
Phlox drummondii ssp. drummondii Annual Phlox , Drummond Phlox
Phlox glaberrima + Smooth Phlox
Phlox latifolia Mountain Phlox, Appalachian Phlox, Allegheny Phlox
Phlox maculata ssp. maculata Northern Meadow Phlox
Phlox maculata ssp. pyramidalis Leafy Meadow Phlox, Wild Sweet William
Phlox nivalis + Pineland Phlox, Trailing Phlox
Phlox paniculata Garden Phlox, Summer Phlox, Fall Phlox, Smooth Phlox
Phlox pilosa + Downy Phlox
Phlox stolonifera Creeping Phlox
Phlox subulata + Moss Phlox, Mountain-pink
Phoradendron leucarpum American Mistletoe, Christmas Mistletoe
Photinia floribunda Purple Chokeberry
Photinia melanocarpa Black Chokeberry
Photinia pyrifolia Red Chokeberry
Photinia serratifolia Taiwanese Redtip
Photinia Xfraseri Fraser's Photinia, Redtip Photinia
Phragmites australis Common Reed
Phryma leptostachya American Lopseed
Phyla lanceolata Marsh Frogfruit, Northern Frogfruit
Phyla nodiflora Creeping Frogfruit, Capeweed, Turkey-tangle
Phyllanthus caroliniensis ssp. caroliniensis Carolina Leaf-flower
Phyllanthus tenellus Mascarene Island Leaf-flower
Phyllanthus urinaria Chamber Bitter
Phyllostachys aurea Golden Bamboo, Fishpole Bamboo
Phyllostachys aureosulcata Yellow-groove Bamboo
Phyllostachys bambusoides Giant Timber Bamboo, Japanese Timber Bamboo
Phyllostachys edulis Moso Bamboo
Phyllostachys makinoi Makinoi Bamboo
Phyllostachys nigra Black Bamboo
Phyllostachys rubromarginata reddish bamboo
Physalis angulata Smooth Ground-cherry, Cutleaf Ground-cherry
Physalis grisea Gray Ground-cherry, Strawberry-tomato, Dwarf Cape-gooseberry
Physalis heterophylla var. heterophylla Clammy Ground-cherry
Physalis longifolia var. subglabrata Longleaf Ground-cherry
Physalis pubescens var. integrifolia Thinleaf Downy Ground-cherry
Physalis pubescens var. pubescens Thickleaf Downy Ground-cherry
Physalis virginiana var. virginiana Virginia Ground-cherry
Physalis walteri Dune Ground-cherry, Sand Ground-cherry
Physocarpus opulifolius var. opulifolius Flowering Ninebark, Eastern Ninebark
Physostegia angustifolia Narrowleaf Obedient-plant
Physostegia leptophylla Tidal Marsh Obedient-plant, Swamp Obedient-plant, Narrowleaf Obedient-plant, False Dragonhead
Physostegia purpurea Savanna Obedient-plant, Eastern False Dragonhead
Physostegia virginiana ssp. praemorsa Southern Obedient-plant
Physostegia virginiana ssp. virginiana Northern Obedient-plant, False Dragonhead, Obedient-plant
Phytolacca americana var. americana Common Pokeweed, Poke
Phytolacca americana var. rigida Maritime Pokeweed
Picea abies Norway Spruce
Picea rubens Red Spruce, He Balsam
Pieris floribunda Evergreen Mountain Fetterbush, Mountain Andromeda
Pieris japonica Japanese Andromeda, Lily-of-the-Valley Bush
Pieris phillyreifolia Vine-wicky, Climbing Fetterbush, Climbing Wicky
Pilea microphylla Rockweed, Artillery Weed
Pilea pumila var. pumila Greenfruit Clearweed, Richweed, Coolwort
Piloblephis rigida Florida Pennyroyal, Wild Pennyroyal
Pimpinella saxifraga ssp. saxifraga Burnet-saxifrage
Pinckneya bracteata Fevertree, Pinkneya
Pinellia ternata Pinellia, Crow-dipper
Pinguicula caerulea Blue Butterwort
Pinguicula lutea Yellow Butterwort
Pinguicula pumila Small Butterwort
Pinus clausa Sand Pine
Pinus echinata Shortleaf Pine, Yellow Pine, Rosemary Pine
Pinus elliottii var. elliottii Slash Pine
Pinus glabra Spruce Pine, Walter's Pine
Pinus palustris Longleaf Pine, Georgia Pine, Southern Pine
Pinus pungens Table Mountain Pine, Burr Pine, Hickory Pine
Pinus resinosa Red Pine
Pinus rigida Pitch Pine
Pinus serotina Pond Pine, Pocosin Pine, Marsh Pine
Pinus strobus Eastern White Pine
Pinus taeda Loblolly Pine, Old Field Pine
Pinus virginiana Virginia Pine, Scrub Pine, Jersey Pine
Piptochaetium avenaceum Green Needlegrass, Blackseed Needlegrass, Eastern Needlegrass, Black Oatgrass
Piriqueta cistoides ssp. caroliniana Piriqueta, Pitted Stripeseed
Pistia stratiotes Water Lettuce
Pittosporum tobira Japanese Pittosporum, Australian Laurel
Pityopsis aspera var. adenolepis Grass-leaved Golden-aster, Grassleaf Aster
Pityopsis aspera var. aspera Pineland Silkgrass, Sticky Golden-aster, Grassleaf Aster, Grass-leaved Golden-aster
Pityopsis graminifolia var. graminifolia narrowleaf silkgrass, Grass-leaved Golden-aster, Grassleaf Aster
Pityopsis graminifolia var. latifolia Grass-leaved Golden-aster, Grassleaf Aster
Pityopsis graminifolia var. tenuifolia Grass-leaved Golden-aster, Grassleaf Aster
Pityopsis oligantha Narrow-leaved Golden-aster, Few-flowered Golden-aster
Pityopsis pinifolia Sandhills Golden-aster, Taylor County Golden-aster
Pityopsis ruthii Ruth's Golden-aster
Planera aquatica Water-elm, Planer-tree
Plantago arenaria Sand Plantain, Leafy-stemmed Plantain
Plantago aristata Bracted Plantain, Large-bracted Plantain, Buckhorn Plantain
Plantago cordata Heartleaf Plantain, King-root
Plantago heterophylla Many-seeded Plantain, Small Plantain
Plantago lanceolata English Plantain, Buckhorn Plantain, Rib-grass
Plantago major Common Plantain, White Man's Foot
Plantago rugelii var. rugelii American Plantain, Broad-leaved Plantain, Blackseed Plantain, Red-stemmed Plantain
Plantago virginica Virginia Plantain, Southern Plantain, Paleseed Plantain
Plantago wrightiana Wright's Plantain
Platanthera blephariglottis var. blephariglottis Small White Fringed Orchid
Platanthera blephariglottis var. conspicua Large White Fringed Orchid, Southern White Fringed Orchid
Platanthera ciliaris Yellow Fringed Orchid
Platanthera clavellata Small Green Wood Orchid, Club-spur Orchid, Woodland Orchid, Streamhead Orchid
Platanthera cristata Crested Fringed Orchid, Golden Fringed Orchid
Platanthera flava var. flava Tubercled Orchid, Southern Rein Orchid, Southern Gypsy-spike
Platanthera flava var. herbiola Tubercled Rein Orchid, Northern Gypsy-spike
Platanthera grandiflora Large Purple Fringed Orchid, Plume-royal
Platanthera integra Yellow Fringeless Orchid, Golden Frog Orchid, Golden Fringeless Orchid
Platanthera integrilabia Monkey-face Orchid, White Fringeless Orchid
Platanthera lacera Green Fringed Orchid, Ragged Fringed Orchid, Ragged Orchid
Platanthera nivea Snowy Orchid, Bog-spike
Platanthera orbiculata Large Round-leaved Orchid, Dinner-plate Orchid
Platanthera peramoena Purple Fringeless Orchid, Purple Spire Orchid, Pride-of-the-peak
Platanthera psycodes Small Purple Fringed Orchid, Butterfly Orchid
Platanus √óhispanica [occidentalis √ó orientalis] London Planetree
Platanus occidentalis Sycamore, Planetree
Platycladus orientalis Oriental Arborvitae, Tree-of-life
Pleea tenuifolia Rush-featherling, Pleea
Pleopeltis polypodioides ssp. michauxiana Resurrection Fern, Scaly Polypody
Pluchea camphorata Camphorweed, Camphor Pluchea, Marsh Fleabane
Pluchea foetida var. foetida Stinking Fleabane, Marsh Fleabane, Stinking Camphorweed, Common Wild Quinine
Pluchea odorata var. odorata Saltmarsh Fleabane, Camphorweed
Pluchea rosea Marsh Fleabane, Rosy Camphorweed
Poa annua Annual Bluegrass, Six-weeks Grass, Speargass
Poa autumnalis Autumn Bluegrass
Poa compressa Canada Bluegrass
Poa cuspidata early bluegrass
Poa pratensis ssp. pratensis Kentucky Bluegrass, Junegrass, Speargrass
Poa trivialis Rough Bluegrass
Podophyllum peltatum May-apple, American Mandrake
Podostemum ceratophyllum Riverweed, Threadfoot, Riffleweed
Pogonia ophioglossoides Rose Pogonia, Snakemouth Orchid, Beardflower, Addermouth
Polemonium reptans var. reptans Spreading Jacob's Ladder, Greek Valerian
Polemonium vanbruntiae Appalachian Jacob's Ladder
Polygala ambigua Loose Milkwort
Polygala balduinii White Milkwort, Baldwin's Milkwort
Polygala boykinii var. boykinii Boykin's Milkwort
Polygala cruciata var. cruciata Southern Drumheads, Cross-leaved Milkwort
Polygala curtissii Appalachian Milkwort, Curtiss' Milkwort
Polygala cymosa Tall Milkwort, Tall Pinebarren Milkwort
Polygala grandiflora var. grandiflora Showy Milkwort
Polygala hookeri Hooker's Milkwort
Polygala incarnata Pink Milkwort, Procession Flower
Polygala lutea Orange Milkwort, Red-hot-poker, Candyroot
Polygala mariana Maryland Milkwort
Polygala nana Dwarf Milkwort, Candyroot
Polygala paucifolia Gaywings, Fringed Polygala
Polygala polygama Southern Bitter Milkwort, Racemed Milkwort
Polygala ramosa Short Pinebarren Milkwort, Low Pinebarren Milkwort, Dwarf Milkwort, Savanna Milkwort
Polygala sanguinea Field Milkwort, Blood Milkwort
Polygala senega Seneca Snakeroot
Polygala setacea Coastal Plain Milkwort
Polygala verticillata + Whorled Milkwort
Polygonatum biflorum var. commutatum Solomon's Seal, Smooth Solomon's Seal
Polygonatum pubescens Solomon's Seal, Hairy Solomon's Seal
Polygonella americana Southern Jointweed, Showy Jointweed
Polygonella fimbriata Sandhill Jointweed, Fringed Thysanella
Polygonella polygama October-flower
Polygonum amphibium + Water Smartweed, Scarlet Smartweed
Polygonum arifolium Halberd-leaf Tearthumb
Polygonum aviculare Prostrate Knotweed
Polygonum baldschuanicum Lace Vine, Silver-lace-vine, China Fleece-vine
Polygonum cespitosum var. longisetum Longbristle Smartweed, Bristly Lady’s-thumb, Tufted Knotweed
Polygonum cilinode Fringed Climbing Buckwheat, Fringed Black Bindweed, Fringed Bindweed
Polygonum convolvulus var. convolvulus Climbing Buckwheat, Nimblewill, Black Bindweed
Polygonum cuspidatum Japanese Knotweed
Polygonum densiflorum Dense-flowered Smartweed
Polygonum erectum Erect Knotweed
Polygonum hydropiperoides Mild Waterpepper
Polygonum lapathifolium Dockleaf Smartweed, Willow-weed, Pale Smartweed
Polygonum orientale Kiss-me-over-the-garden-gate, Prince's Feather, Prince's-plume
Polygonum pensylvanicum Pennsylvania Smartweed, Pinkweed
Polygonum perfoliatum Asiatic Tearthumb, Mile-a-minute-vine
Polygonum persicaria Lady's-thumb, Heart's-ease
Polygonum polystachyum Himalayan Knotweed, Kashmir Plume, cultivated knotweed
Polygonum punctatum var. punctatum Dotted Smartweed
Polygonum sachalinense Giant Knotweed, Sachaline
Polygonum sagittatum Arrowleaf Tearthumb, Arrowvine
Polygonum scandens var. cristatum Crested Climbing Buckwheat, Climbing False Buckwheat
Polygonum scandens var. scandens Common Climbing Buckwheat
Polygonum setaceum Swamp Smartweed
Polygonum virginianum Jumpseed
Polymnia canadensis Small-flowered Leafcup, White-flowered Leafcup
Polymnia laevigata Tennessee Leafcup
Polypodium appalachianum Appalachian Rockcap Fern, Appalachian Polypody
Polypodium virginianum Common Rockcap Fern, Rock Polypody
Polypogon monspeliensis Rabbitfoot Grass, Beardgrass, Annual Beardgrass
Polypremum procumbens Rustweed, Polypremum, Juniperleaf
Polystichum acrostichoides var. acrostichoides Christmas Fern
Poncirus trifoliata Trifoliate Orange, Hardy Orange
Pontederia cordata Heartleaf Pickerelweed, Wampee
Pontederia cordata Lanceleaf Pickerelweed
Ponthieva racemosa Shadow Witch, Ponthieu's Orchid, Shadow-witch Orchid
Populus alba White Poplar, Silver Poplar
Populus deltoides ssp. deltoides Eastern Cottonwood
Populus grandidentata Bigtooth Aspen, Large-toothed Aspen
Populus heterophylla Swamp Cottonwood
Populus nigra European Black Poplar, Lombardy Poplar, Black Poplar
Populus tremuloides Quaking Aspen
Populus Xjackii [balsamifera X deltoides] Balm-of-Gilead
Portulaca amilis Broadleaf Pink Purslane, Paraguayan Purslane
Portulaca oleracea Common Purslane, Garden Purslane, Pussley
Portulaca pilosa Hairy Purslane, Kiss-me-quick
Portulaca smallii Small's Portulaca
Potamogeton crispus Curly Pondweed, Curled Pondweed, Curly-leaf Pondweed
Potamogeton diversifolius Common Snailseed Pondweed
Potamogeton pulcher Spotted Pondweed, Heartleaf Pondweed
Potentilla argentea var. argentea Silvery Cinquefoil, Silvery Five-fingers, Hoary Five-fingers
Potentilla canadensis var. canadensis Dwarf Cinquefoil, Running Five-fingers
Potentilla norvegica ssp. monspeliensis Strawberry-weed, Rough Cinquefoil, Norwegian Cinquefoil
Potentilla recta Rough-fruited Cinquefoil, Sulphur Cinquefoil, Sulphur Five-fingers
Potentilla simplex Old Field Cinquefoil, Old-field Five-fingers, Common Cinquefoil
Prenanthes alba White Lettuce, Northern Rattlesnake-root
Prenanthes altissima Tall White Lettuce, Tall Rattlesnake-root
Prenanthes autumnalis Slender Rattlesnake-root, One-sided Rattlesnake-root
Prenanthes barbata Barbed Rattlesnake-root, Flatwoods Rattlesnake-root
Prenanthes roanensis Roan Rattlesnake-root, Appalachian Rattlesnake-root
Prenanthes serpentaria Lion's-foot, Gall-of-the-Earth
Prenanthes trifoliolata Gall-of-the-earth
Prosartes lanuginosa Yellow Mandarin, Yellow Fairybells
Prosartes maculata Nodding Mandarin, Spotted Mandarin
Proserpinaca palustris var. crebra Common Mermaid-weed
Prunella vulgaris ssp. lanceolata American Heal-all, American Self-heal
Prunella vulgaris ssp. vulgaris Eurasian Self-heal, Eurasian Heal-all
Prunus alabamensis Alabama Black Cherry
Prunus americana American Plum, Wild Plum
Prunus angustifolia var. angustifolia Chickasaw Plum
Prunus avium Mazzard Cherry, Sweet Cherry, Bing Cherry
Prunus caroliniana Carolina Cherry Laurel, Carolina Laurel Cherry
Prunus hortulana Hortulan Plum, Wild-goose Plum
Prunus mahaleb Mahaleb Cherry, Perfumed Cherry, St. Lucie Cherry, Rock Cherry
Prunus mexicana Big-tree Plum, Mexican Plum
Prunus pensylvanica var. pensylvanica Fire Cherry, Pin Cherry
Prunus persica Peach
Prunus serotina var. serotina Black Cherry
Prunus susquehanae Appalachian Sand Cherry, Susquehanna Cherry, Appalachian Dwarf-cherry
Prunus umbellata var. umbellata Hog Plum, Flatwoods Plum
Prunus virginiana var. virginiana Choke Cherry, Common Chokecherry
Prunus Xyedoensis [subhirtella X speciosa] Yoshino Cherry
Pseudognaphalium helleri ssp. helleri Heller's Rabbit Tobacco
Pseudognaphalium obtusifolium ssp. obtusifolium Fragrant Rabbit Tobacco, Sweet Everlasting, Catfoot
Pseudolysimachion longifolium Garden Speedwell, Longleaf Speedwell
Pseudosasa japonica Arrow Bamboo
Ptelea trifoliata + Wafer-ash, Hoptree
Pteridium aquilinum + Bracken, Brake
Pteris multifida Spider Brake, Wall Fern, Huguenot Fern
Pteris vittata Ladder Brake
Pterocaulon pycnostachyum Black Snakeroot, Blackroot, Wingstem
Pteroglossaspis ecristata Spiked Medusa, Crestless Plume Orchid, Smooth-lipped Eulophia, Non-crested Eulophia
Ptilimnium capillaceum Eastern Bishopweed, Atlantic Bishopweed, Atlantic Mock Bishop's Weed
Ptilimnium costatum Big Bishopweed
Pueraria montana var. lobata Kudzu, Foot-a-Day
Pycnanthemum albescens White-leaved Mountain-mint, White Mountain-mint
Pycnanthemum beadlei Beadle's Mountain-mint
Pycnanthemum clinopodioides basil mountain-mint
Pycnanthemum flexuosum Savanna Mountain-mint
Pycnanthemum incanum + Hoary Mountain-mint, White Mountain-mint
Pycnanthemum montanum Appalachian Mountain-mint
Pycnanthemum muticum Short-toothed Mountain-mint, Downy Mountain-mint
Pycnanthemum nudum Smooth Mountain-mint
Pycnanthemum pycnanthemoides + Woodland Mountain-mint
Pycnanthemum setosum awned mountain-mint
Pycnanthemum tenuifolium Narrowleaf Mountain-mint, Slender Mountain-mint, Savanna Mountain-mint
Pycnanthemum torrei Torrey's Mountain-mint
Pycnanthemum verticillatum var. verticillatum whorled mountain-mint
Pycnanthemum virginianum Virginia Mountain-mint
Pyracantha coccinea Pyracantha, Scarlet Firethorn
Pyrrhopappus carolinianus Carolina False Dandelion
Pyrularia pubera Buffalo-nut, Oil-nut
Pyrus calleryana Bradford Pear, Callery Pear
Pyrus communis Common Pear
Pyxidanthera barbulata Common Pyxie-moss, Big Pyxie
Pyxidanthera brevifolia Sandhills Pyxie-moss, Wells' Pyxie-moss, Little Pyxie
Quercus acutissima Sawtooth Oak
Quercus alba White Oak
Quercus arkansana Arkansas Oak
Quercus austrina Bluff Oak, Bastard White Oak
Quercus bicolor Swamp White Oak
Quercus boyntonii Boynton Sand Post Oak, Boynton Oak
Quercus buckleyi Buckley Oak
Quercus chapmanii Chapman Oak
Quercus coccinea + Scarlet Oak
Quercus falcata Southern Red Oak, Spanish Oak
Quercus geminata Sand Live Oak
Quercus georgiana Georgia Oak
Quercus hemisphaerica + Darlington Oak, Sand Laurel Oak
Quercus ilicifolia Bear Oak, Scrub Oak
Quercus imbricaria Shingle Oak
Quercus incana Bluejack Oak
Quercus laevis Turkey Oak
Quercus laurifolia Laurel Oak, Swamp Laurel Oak, Diamond Leaf Oak
Quercus lyrata Overcup Oak, Swamp White Oak
Quercus macrocarpa var. macrocarpa Bur Oak, Mossycup Oak
Quercus margarettae Sand Post Oak, Scrub Post Oak
Quercus marilandica var. marilandica Blackjack Oak
Quercus michauxii Swamp Chestnut Oak, Basket Oak
Quercus minima Dwarf Live Oak
Quercus muehlenbergii Chinquapin Oak, Yellow Chestnut Oak
Quercus myrtifolia Myrtle Oak
Quercus nigra Water Oak
Quercus oglethorpensis Oglethorpe Oak
Quercus pagoda Cherrybark Oak, Swamp Spanish Oak
Quercus palustris Pin Oak
Quercus phellos Willow Oak
Quercus prinoides Dwarf Chinquapin Oak
Quercus prinus Rock Chestnut Oak, Tanbark Oak
Quercus pumila Running Oak
Quercus rubra + Northern Red Oak, Red Oak
Quercus shumardii var. shumardii Shumard Oak, Swamp Red Oak
Quercus similis Swamp Post Oak, Bottomland Post Oak, Delta Oak
Quercus sinuata var. breviloba Bastard Oak
Quercus sinuata var. sinuata Bastard Oak, Durand's White Oak
Quercus stellata Post Oak
Quercus texana Nuttall Oak, Texas Red Oak
Quercus velutina Black Oak
Quercus virginiana Live Oak
Ranunculus abortivus Kidneyleaf Buttercup, Small-flowered Buttercup, Kidney-leaved Crowfoot, Small-flowered Crowfoot
Ranunculus acris var. acris Tall Buttercup, Bitter Buttercup
Ranunculus allegheniensis Mountain Crowfoot, Allegheny Buttercup
Ranunculus ambigens Water-plantain Crowfoot, Water-plantain Spearwort
Ranunculus arvensis Corn Crowfoot, Hungerweed
Ranunculus bulbosus Bulbous Buttercup
Ranunculus fascicularis Early Buttercup, Thick-root Butterdup
Ranunculus ficaria var. bulbifera Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria var. bulbifera Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria var. bulbifera Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria var. bulbifera Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria var. bulbifera Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus harveyi Harvey's buttercup
Ranunculus hispidus var. caricetorum Northern Swamp Buttercup, Marsh Buttercup
Ranunculus hispidus var. hispidus Hispid Buttercup, Hairy Buttercup
Ranunculus hispidus var. nitidus Carolina Buttercup, Swamp Buttercup
Ranunculus laxicaulis Coastal Plain Spearwort
Ranunculus micranthus Small-flowered Buttercup, Rock Buttercup
Ranunculus muricatus spinyfruit buttercup
Ranunculus parviflorus Small-flowered Buttercup, Stickseed Crowfoot
Ranunculus pusillus var. pusillus Low Spearwort
Ranunculus recurvatus var. recurvatus Hooked Buttercup, Hooked Crowfoot
Ranunculus repens Creeping Buttercup
Ranunculus sardous Sardinian Buttercup, Hairy Buttercup
Ranunculus sceleratus var. sceleratus Cursed Buttercup, Celery-leaf Crowfoot, Cursed Crowfoot
Raphanus raphanistrum Wild Radish, Jointed Charlock, White Charlock
Ratibida columnifera Mexican Hat, Columnar Prairie Coneflower, Upright Coneflower, Long-headed Coneflower
Ratibida pinnata Grey-headed Coneflower, Globular Prairie Coneflower
Rhamnus cathartica Common Buckthorn
Rhapidophyllum hystrix Needle Palm, Blue Palmetto
Rhexia alifanus Smooth Meadowbeauty, Savanna Meadowbeauty
Rhexia aristosa Awned Meadowbeauty, Bristly Meadowbeauty
Rhexia cubensis West Indies Meadowbeauty
Rhexia lutea Yellow Meadowbeauty, Golden Meadowbeauty
Rhexia mariana var. interior Maryland meadowbeauty
Rhexia mariana var. mariana Pale Meadowbeauty, Maryland Meadowbeauty, Dull Meadowbeauty
Rhexia mariana var. mariana White Meadowbeauty
Rhexia mariana var. ventricosa Swollen Meadowbeauty
Rhexia nashii Hairy Meadowbeauty, Maid Marian, Nash's Meadowbeauty
Rhexia nuttallii Nuttall's Meadowbeauty
Rhexia petiolata Ciliate Meadowbeauty, Short-stemmed Meadowbeauty, Fringed Meadowbeauty, Bog Meadowbeauty
Rhexia virginica Virginia Meadowbeauty, Wingstem Meadowbeauty, Deergrass
Rhizophora mangle Red Mangrove
Rhodiola rosea Roseroot
Rhododendron alabamense Alabama Azalea
Rhododendron arborescens Sweet Azalea, Smooth Azalea
Rhododendron atlanticum Dwarf Azalea, Coastal Azalea
Rhododendron austrinum Florida Flame Azalea, Yellow Azalea
Rhododendron calendulaceum Flame Azalea
Rhododendron canescens Piedmont Azalea, Southern Pinxterbloom Azalea, Wild Azalea
Rhododendron carolinianum Carolina Rhododendron, Punctatum
Rhododendron catawbiense Catawba Rhododendron, Mountain Rosebay, Purple Laurel, Pink Laurel
Rhododendron cumberlandense Cumberland Azalea, Baker's Azalea
Rhododendron eastmanii May White Azalea, Eastman's Azalea
Rhododendron flammeum Oconee Azalea
Rhododendron maximum Rosebay Rhododendron, Great Laurel, White Rosebay, Great Rhododendron
Rhododendron minus Gorge Rhododendron, Punctatum, Piedmont Rhododendron, (Carolina Rhododendron)
Rhododendron oblongifolium Texas Azalea
Rhododendron periclymenoides Pinxterflower, Pinxterbloom Azalea, Election Pink, Pinxter Azalea
Rhododendron prinophyllum Election Pink, Roseshell Azalea, Early Azalea
Rhododendron prunifolium Plumleaf Azalea
Rhododendron vaseyi Pinkshell Azalea
Rhododendron viscosum Swamp Azalea, Clammy Azalea, Swamp Honeysuckle, Catch-fly Azalea
Rhodotypos scandens Jetbead
Rhus aromatica var. aromatica Fragrant Sumac, Squawbush
Rhus copallinum + Winged Sumac, Shining Sumac, Dwarf Sumac
Rhus glabra Smooth Sumac, Common Sumac
Rhus michauxii Michaux's Sumac, Dwarf Sumac, False Poison Sumac
Rhus typhina Staghorn Sumac
Rhynchosia difformis Snoutbean
Rhynchosia reniformis Dollarweed, Dollarleaf, Roundleaf Snoutbean
Rhynchosia tomentosa var. tomentosa Twining Snoutbean, Erect Snoutbean
Rhynchospora caduca Angle-stem Beaksedge
Rhynchospora capitellata Brownish Beaksedge
Rhynchospora colorata Narrowleaf Whitetop Sedge, White-bracted Sedge
Rhynchospora globularis Globe Beaksedge
Rhynchospora harperi Harper's Beaksedge
Rhynchospora inundata Narrow-fruit Horned Beaksedge
Rhynchospora latifolia Broadleaf Whitetop Sedge, Giant White-topped Sedge, White-bracted Sedge
Rhynchospora megalocarpa Sandy-field Beaksedge, Sandhill Beaksedge
Rhynchospora miliacea Millet Beaksedge
Rhynchospora recognita Cymose Beakrush
Rhynchospora tracyi Tracy's Beaksedge
Ribes americanum Wild Black Currant, American Black Currant
Ribes curvatum Granite Gooseberry
Ribes cynosbati Prickly Gooseberry, Dogberry
Ribes echinellum Miccosukee Gooseberry, Spiny Gooseberry, Florida Gooseberry
Ribes glandulosum Skunk Currant, Mountain Currant
Ribes rotundifolium Roundleaf Gooseberry, Appalachian Gooseberry
Richardia brasiliensis Brazilian-clover, tropical Mexican-clover
Richardia grandiflora Largeflower Mexican-clover, Largeflower Richardia
Richardia scabra Rough Mexican-clover
Ricinus communis Castor-bean, Castor-oil Plant, Palma Christi
Robinia hispida var. fertilis Arnot Bristly Locust
Robinia hispida var. hispida Common Bristly Locust
Robinia hispida var. kelseyi Kelsey's Locust
Robinia hispida var. nana Dwarf Bristly Locust, Dwarf Locust
Robinia hispida var. rosea Boynton's Locust
Robinia pseudoacacia Black Locust
Robinia viscosa var. hartwegii Granite Dome Locust, Highlands Locust, Hartwig's Locust
Robinia viscosa var. viscosa Clammy Locust
Rorippa austriaca Austrian Yellowcress
Rorippa palustris ssp. palustris Marshcress, Bog Yellowcress
Rosa bracteata McCartney Rose, Chickasaw Rose
Rosa canina Dog Rose
Rosa carolina var. carolina Carolina Rose
Rosa laevigata Cherokee Rose
Rosa multiflora Multiflora Rose
Rosa palustris Swamp Rose
Rosa rubiginosa Sweetbriar Rose, Eglantine Rose
Rosa rugosa Japanese Rose, Rugosa Rose, Beach Rose
Rosa setigera Climbing Prairie Rose
Rosa virginiana var. virginiana Virginia Rose
Rosa wichuraiana Memorial Rose, Dorothy Perkins Rose, Lucie Rose
Rosa Xdamascena Damask Rose
Rosmarinus officinalis Rosemary
Rotala ramosior Toothcup
Rotala rotundifolia Roundleaf Toothcup, Dwarf Rotala
Rottboellia cochinchinensis Itch-grass
Rubus allegheniensis var. allegheniensis Allegheny Blackberry
Rubus argutus Pennsylvania Blackberry, Highbush Blackberry, Southern Blackberry
Rubus armeniacus Himalayan Blackberry, Armenian Blackberry
Rubus bifrons European Blackberry, Himalaya-berry, Himalayan Blackberry
Rubus canadensis Thornless Blackberry, Smooth Blackberry
Rubus cuneifolius Sand Blackberry
Rubus flagellaris Common Dewberry, Northern Dewberry
Rubus hispidus Swamp Dewberry
Rubus idaeus ssp. strigosus Red Raspberry
Rubus laciniatus Cut-leaved Blackberry, Evergreen Blackberry
Rubus occidentalis Black Raspberry
Rubus odoratus var. odoratus Purple-flowering Raspberry, Thimbleberry
Rubus pascuus Chesapeake Blackberry, Topsy Blackberry
Rubus phoenicolasius Wineberry
Rubus trivialis Southern Dewberry, Coastal Plain Dewberry
Rudbeckia fulgida + Orange Coneflower, Eastern Coneflower
Rudbeckia heliopsidis Sunfacing Coneflower, Pineywoods Coneflower
Rudbeckia hirta var. angustifolia Coastal Plain Black-eyed Susan
Rudbeckia hirta var. hirta Woodland Black-eyed Susan
Rudbeckia hirta var. pulcherrima Weedy Black-eyed Susan
Rudbeckia laciniata var. digitata Blue Ridge Cutleaf Coneflower
Rudbeckia laciniata var. digitata Coastal Plain Cutleaf Coneflower
Rudbeckia laciniata var. laciniata Green-headed Coneflower, Common Cutleaf Coneflower, Green Coneflower, Goldenglow
Rudbeckia maxima Giant Coneflower
Rudbeckia mollis Soft-haired Coneflower, Woolly Coneflower
Rudbeckia nitida Narrow-leaved Coneflower, St. John's Black-eyed Susan, Shiny Coneflower
Rudbeckia subtomentosa
Rudbeckia triloba var. rupestris Blue Ridge Three-lobed Coneflower, Brown-eyed Susan
Rudbeckia triloba var. triloba Common Three-lobed Coneflower, Brown-eyed Susan, Thin-Leaved Coneflower
Ruellia caerulea Mexican Bluebell
Ruellia caroliniensis ssp. caroliniensis var. caroliniensis Carolina Wild Petunia, Common Wild Petunia, Hairy Ruellia
Ruellia caroliniensis ssp. ciliosa var. cinerascens Sandhills Wild Petunia
Ruellia humilis Hairy Wild Petunia, Low Wild Petunia, Glade Wild Petunia
Ruellia noctiflora Night-flowering Wild Petunia, Night-blooming Wild Petunia
Ruellia pedunculata ssp. pinetorum Pineland Wild Petunia
Ruellia purshiana Pursh's Wild Petunia
Ruellia strepens Limestone Wild Petunia, Glade Wild Petunia
Rugelia nudicaulis Rugel's Ragwort, Rugelia, Rugel's Indian Plantain
Rumex acetosella Sheep Sorrel, Field Sorrel, Red Sorrel, Sourgrass
Rumex crispus ssp. crispus Curly Dock
Rumex hastatulus Wild Dock, Sourgrass, Heartwing Sorrel, Wild Sorrel
Rumex obtusifolius Broadleaf Dock, Bitter Dock
Rumex patientia Patience Dock, Monk's-rhubarb
Rumex pulcher Fiddle Dock
Sabal minor Dwarf Palmetto, Bush Palmetto, Dwarf Blue Palmetto, Bluestem Palmetto
Sabal palmetto Cabbage Palmetto
Sabatia angularis Rose-pink, Bitterbloom, Common Marsh-pink
Sabatia bartramii Bartram's Rose-gentian
Sabatia brachiata Narrowleaf Rose-pink, Narrowleaf Rose-gentian, Narrowleaf Sabatia
Sabatia calycina Coastal Rose-pink, Coastal Rose Gentian
Sabatia campanulata Slender Marsh-pink, Slender Rose-gentian
Sabatia capitata Cumberland Rose-gentian, Appalachian Rose-gentian
Sabatia difformis White Sabatia, Lanceleaf Rose-gentian, Lanceleaf Sabatia
Sabatia dodecandra var. dodecandra Perennial Sea-pink, Large Marsh Rose-pink
Sabatia dodecandra var. foliosa Marsh Rose-gentian
Sabatia gentianoides Pinewoods Rose-gentian, Pinewoods Rose-pink
Sabatia grandiflora Largeflower Rose-gentian
Sabatia kennedyana Plymouth Gentian
Sabatia quadrangula Four-angle Sabatia, Four-angle Rose-gentian
Sabatia stellaris Annual Sea-pink, Common Marsh-pink, Rose-of-Plymouth
Saccharum alopecuroides Silver Plumegrass
Saccharum baldwinii Narrow Plumegrass
Saccharum brevibarbe var. brevibarbe Short-bearded Plumegrass
Saccharum brevibarbe var. contortum Bent-awn Plumegrass
Saccharum coarctatum Brown Plumegrass
Saccharum giganteum Sugarcane Plumegrass, Giant Plumegrass
Saccharum ravennae Ravenna Grass, Hardy Pampas Grass
Sacciolepis indica Indian Cupscale
Sacciolepis striata American Cupscale
Sageretia minutiflora Shell-mound Buckthorn, Small-flowered Buckthorn
Sagittaria australis Appalachian Arrowhead, Southern Arrowhead
Sagittaria engelmanniana Engelmann's arrowhead
Sagittaria fasciculata Bunched Arrowhead
Sagittaria graminea var. graminea Grassleaf Arrowhead
Sagittaria isoetiformis Depression Meadow Arrowhead
Sagittaria lancifolia ssp. lancifolia Duck Potato
Sagittaria lancifolia ssp. media Duck Potato
Sagittaria latifolia Broadleaf Arrowhead, Duck Potato
Salicornia depressa Perennial Glasswort, Woody Glasswort, Samphire
Salix alba European White Willow
Salix babylonica Weeping Willow
Salix caprea Goat Willow, Great Sallow
Salix caroliniana Carolina Willow, Coastal Plain Willow
Salix cinerea Gray Willow
Salix discolor Pussy Willow
Salix fragilis Crack Willow, Brittle Willow
Salix humilis var. humilis Prairie Willow, Upland Willow
Salix humilis var. tristis Dwarf Upland Willow, Sage Willow
Salix matsudana Corkscrew Willow
Salix nigra Black Willow
Salix sericea Silky Willow, Shrub Willow, Satin Willow
Salsola kali ssp. kali Northern Saltwort
Salsola kali ssp. pontica Southern Saltwort, Carolina Saltwort
Salsola tragus Russian Thistle, Tumbleweed
Salvia azurea var. azurea Azure Sage
Salvia leucantha Mexican Bush Sage
Salvia lyrata Lyreleaf Sage
Salvia sclarea Europe sage, clary sage
Salvia urticifolia Nettleleaf Sage
Salvinia auriculata Giant Salvinia, eared watermoss
Salvinia biloba Giant Salvinia
Salvinia herzogii Giant Salvinia
Salvinia minima Water Spangles, Floating Fern
Salvinia molesta Giant Salvinia
Sambucus nigra ssp. canadensis Common Elderberry, American Elder
Sambucus racemosa var. racemosa Red Elderberry, Red-berried Elder, Eastern Red Elderberry
Samolus valerandi ssp. parviflorus Water-pimpernel, Brookweed
Sanguinaria canadensis Bloodroot, Red Puccoon
Sanguisorba canadensis Canada Burnet, American Burnet, White Burnet
Sanguisorba minor ssp. balearica Salad Burnet, Garden Burnet, Fodder Burnet
Sanicula canadensis var. canadensis Canada Sanicle, Black Snakeroot
Sanicula canadensis var. canadensis Florida Sanicle, Florida Snakeroot
Sanicula canadensis var. grandis Large Sanicle
Sanicula marilandica Black Snakeroot, Maryland Sanicle
Sanicula odorata Clustered Snakeroot, Clustered Sanicle, Yellow-flowered Snakeroot, Fragrant Snakeroot
Sanicula smallii Small's Sanicle, Southern Sanicle, Snakeroot
Sanicula trifoliata Long-fruited Snakeroot, Beaked Sanicle, Large-fruited Sanicle
Sapindus saponaria var. drummondii Western Soapberry
Sapindus saponaria var. saponaria Florida Soapberry
Saponaria officinalis Soapwort, Bouncing Bet
Sarcocornia perennis Woody Glasswort, Perennial Glasswort
Sarracenia flava Yellow Pitcherplant, Yellow Trumpet, Trumpets
Sarracenia leucophylla White-topped Pitcherplant, Crimson Pitcherplant
Sarracenia minor Hooded Pitcherplant
Sarracenia oreophila Mountain Green Pitcherplant, Green Pitcherplant, Mountain Pitcherplant
Sarracenia psittacina Parrot Pitcherplant
Sarracenia purpurea ssp. gibbosa Northern Purple Pitcherplant
Sarracenia purpurea ssp. purpurea var. montana Southern Appalachian Purple Pitcherplant, Sidesaddle Flower
Sarracenia purpurea ssp. purpurea var. purpurea Southern Purple Pitcherplant, Frog's Breeches, Hunter's Cup
Sarracenia rubra ssp. jonesii Mountain Sweet Pitcherplant
Sarracenia rubra ssp. rubra Sweet Pitcherplant, Redflower Pitcherplant, Red Pitcherplant
Sassafras albidum Sassafras
Saururus cernuus Lizard's Tail, Water-dragon
Saxifraga careyana Carey's Saxifrage
Saxifraga caroliniana Carolina Saxifrage
Saxifraga michauxii Cliff Saxifrage, Michaux's Saxifrage
Saxifraga michauxii Saxifrage
Saxifraga micranthidifolia Brook Lettuce, Mountain Lettuce, Branch Lettuce, Lettuceleaf Saxifrage
Saxifraga virginiensis var. virginiensis Early Saxifrage
Schedonorus arundinaceus Tall Fescue, Alta Fescue
Schedonorus pratensis Meadow Fescue
Schefflera actinophylla Umbrella Tree, Octopus Tree, Schefflera
Schinus terebinthifolius var. raddianus Brazilian Peppertree, Brazilian-pepper
Schisandra glabra Bay Star-vine, Climbing-magnolia, Magnolia-vine
Schizachyrium scoparium var. scoparium Little Bluestem
Schizachyrium scoparium var. stoloniferum Creeping Little Bluestem
Schoenocaulon dubium Florida Feathershank
Schoenolirion albiflorum White Sunnybell
Schoenolirion croceum Yellow Sunnybell
Schoenolirion wrightii Texas Sunnybell
Schoenoplectiella mucronata Roughseed Bulrush, Bog Bulrush, Ricefield Bulrush
Schoenoplectus californicus Giant Bulrush, Southern Bulrush, Tule
Schoenoplectus pungens var. pungens Common Threesquare, Chairmaker's Rush, Swordgrass
Schoenoplectus robustus Saltmarsh Bulrush
Schoenoplectus tabernaemontani Softstem Bulrush, Great Bulrush
Schwalbea americana Chaffseed
Scirpus atrovirens Black Bulrush
Scirpus cyperinus Woolgrass Bulrush, Marsh Bulrush
Scirpus georgianus Georgia Bulrush
Scirpus polyphyllus Leafy Bulrush
Scleranthus annuus Knawel, Annual Knawel
Scleria ciliata var. ciliata Broad-leaved Hairy Nutrush
Scleria oligantha Few-flowered Nutrush
Scleria pauciflora + Papillose Nutrush, Carolina Nutrush
Scleria triglomerata Tall Nutrush, Stone-rush, Whip Nutrush
Sclerolepis uniflora Sclerolepis, Pink bogbutton
Scrophularia lanceolata Hare Figwort, American Figwort
Scrophularia marilandica Eastern Figwort, Carpenter's Square
Scutellaria arguta Appalachian Skullcap, Blue Ridge Skullcap
Scutellaria elliptica var. elliptica Hairy Skullcap, Elliptic-leaved Skullcap
Scutellaria elliptica var. hirsuta Hairy Skullcap
Scutellaria incana var. australis Hoary Skullcap, Downy Skullcap
Scutellaria incana var. incana Hoary Skullcap, Downy Skullcap
Scutellaria incana var. punctata Hoary Skullcap, Downy Skullcap
Scutellaria integrifolia Hyssop Skullcap, Narrow-leaved Skullcap
Scutellaria lateriflora var. lateriflora Mad-dog Skullcap
Scutellaria montana Large-flowered Skullcap
Scutellaria multiglandulosa Small's Skullcap
Scutellaria nervosa Veined Skullcap, Bottomland Skullcap
Scutellaria ocmulgee Ocmulgee Skullcap
Scutellaria ovata ssp. bracteata Heartleaf Skullcap
Scutellaria ovata ssp. ovata Heartleaf Skullcap
Scutellaria ovata ssp. rugosa Heartleaf Skullcap
Scutellaria parvula var. missouriensis Shale-barren Skullcap, Glade Skullcap
Scutellaria parvula var. parvula Dwarf Skullcap
Scutellaria pseudoserrata falseteeth skullcap
Scutellaria saxatilis Rock Skullcap
Scutellaria serrata Showy Skullcap, Serrate Skullcap
Secale cereale Cereal Rye
Securigera varia Crown-vetch
Sedum acre Mossy Stonecrop, Wallpepper, Bitter Stonecrop, Gold-moss
Sedum glaucophyllum Cliff Stonecrop
Sedum nevii Nevius's Stonecrop
Sedum pulchellum Widow's Cross, Glade Stonecrop, Rock Moss, Lime Stonecrop
Sedum pusillum Puck's Orpine, Granite Stonecrop
Sedum sarmentosum Stringy Stonecrop
Sedum ternatum Mountain Stonecrop, Wild Stonecrop, Three-leaf Stonecrop
Selaginella apoda Meadow Spikemoss
Selaginella ludoviciana Louisiana Spikemoss, Gulf Spikemoss
Selaginella rupestris Rock Spikemoss
Selaginella tortipila Twisted-hair Spikemoss
Senecio jacobaea Tansy Ragwort
Senecio vulgaris Common Groundsel
Senna hebecarpa Northern Wild Senna, American Senna
Senna marilandica Maryland Wild Senna
Senna obtusifolia Coffeeweed, Sicklepod
Serenoa repens Saw Palmetto
Sericocarpus asteroides Toothed White-topped Aster
Sericocarpus linifolius Narrowleaf White-topped Aster, Slender White-topped Aster
Sericocarpus tortifolius Twisted-leaf White-topped Aster, Dixie White-topped Aster
Sesbania herbacea Sesban, Coffee-weed, Indigo-weed, Hemp Sesbania
Sesbania punicea Rattlebush, Purple Sesban, Scarlet Wisteria-tree
Sesbania vesicaria Bladderpod, Bagpod
Sesuvium maritimum Small Sea-purslane, Slender Sea-purslane
Sesuvium portulacastrum Large Sea-purslane, Shoreline Sea-purslane
Setaria corrugata coastal bristlegrass
Setaria faberi Nodding Foxtail Grass, Giant Foxtail-grass
Setaria italica Yellow Foxtail, Italian Millet, Foxtail Millet
Setaria magna Saltmarsh Foxtail-grass, Giant Foxtail-grass, Giant Bristlegrass
Setaria parviflora Perennial Foxtail-grass, Knotroot Bristlegrass, Knotroot Foxtail
Setaria pumila ssp. pallidefusca Yellow Foxtail
Setaria verticillata Hooked Bristlegrass
Setaria viridis var. major Giant Green Foxtail
Setaria viridis var. viridis Green Foxtail, Green Bristlegrass
Seymeria cassioides Senna Seymeria
Seymeria pectinata + Seymeria
Sherardia arvensis Field Madder, Blue Field Madder
Shortia galacifolia var. galacifolia Oconee Bells, Southern Shortia
Sibara virginica Sibara, Virginia-cress
Sibbaldiopsis tridentata Wine-leaf Cinqefoil, Mountain Cinqefoil, Three-toothed Cinqefoil, Mountain White Potentilla
Sicyos angulatus Bur Cucumber, Star Cucumber, Nimble-Kate
Sida elliottii Coastal Plain Sida
Sida rhombifolia Arrowleaf Sida, Cuban Jute, Diamondleaf Fanpetal
Sida spinosa Prickly Mallow, Prickly Sida, False-mallow
Sideroxylon lanuginosum ssp. lanuginosum Eastern Gum Bumelia, Eastern Gum Bully
Sideroxylon lycioides Buckthorn Bumelia, Buckthorn Bully
Sideroxylon tenax Tough Bumelia, Tough Buckthorn, Tough Bully
Sideroxylon thornei Thorne's Bumelia, Swamp Bumelia
Silene antirrhina Sleepy Catchfly, Garter-pink
Silene armeria Sweet William Catchfly, Garden Catchfly
Silene caroliniana ssp. caroliniana South Carolina Wild-pink, Rock Catchfly, Carolina Pink
Silene caroliniana ssp. pensylvanica Northern Wild-pink, Sticky Catchfly, Pennsylvania Catchfly
Silene dichotoma Forked Catchfly
Silene latifolia ssp. alba White Campion, Evening Campion, White Cockle, Evening Lychnis
Silene nivea Snowy Campion
Silene noctiflora Night-flowering Catchfly, Sticky Campion, Sticky Cockle
Silene ovata Mountain Catchfly, Fringed Campion
Silene polypetala Eastern Fringed Campion, Eastern Fringed Catchfly
Silene regia Royal Catchfly
Silene stellata Starry Campion, Widow's-frill
Silene virginica var. robusta Large Fire-pink
Silene virginica var. virginica Fire-pink
Silene vulgaris Bladder Campion, Maiden's-tears
Silphium asteriscus + Starry Rosinweed
Silphium asteriscus var. asteriscus Starry Rosinweed
Silphium compositum var. compositum Kidneyleaf Rosinweed, Rhubarb-leaved Rosinweed, Compass Plant
Silphium compositum var. reniforme Ragged Rosinweed, Kidneyleaf Rosinweed
Silphium integrifolium + Prairie Rosinweed
Silphium laciniatum Compass-plant
Silphium mohrii Shaggy Rosinweed
Silphium perfoliatum var. connatum Virginia Cup-plant
Silphium perfoliatum var. perfoliatum Common Cup-plant, Indian Cup
Silphium pinnatifidum Cutleaf Prairie-dock, Tansy Rosinweed
Silphium simpsonii Simpson's rosinweed
Silphium terebinthinaceum + Prairie-dock, Broadleaf Prairie-dock
Silphium trifoliatum var. latifolium Whorled Rosinweed
Silphium trifoliatum var. trifoliatum Whorled Rosinweed
Silybum marianum Milk-thistle, Blessed-thistle
Sisymbrium altissimum Tumble Mustard, Jim Hill Mustard
Sisymbrium officinale Hedge Mustard
Sisyrinchium albidum Pale Blue-eyed Grass
Sisyrinchium angustifolium Blue-eyed Grass, Stout Blue-eyed Grass
Sisyrinchium atlanticum Atlantic Blue-eyed Grass
Sisyrinchium dichotomum White Irisette, Isothermal Irisette
Sisyrinchium fuscatum Sandyland Blue-eyed-grass
Sisyrinchium fuscatum Bristly Blue-eyed Grass
Sisyrinchium mucronatum Blue-eyed Grass
Sisyrinchium rosulatum Annual Blue-eyed Grass, Lawn Blue-eyed Grass
Sium suave Water-parsnip
Smallanthus uvedalius Bearsfoot, Yellow Leafcup
Smilax auriculata Dune Greenbrier
Smilax biltmoreana Biltmore Carrionflower
Smilax bona-nox Catbrier, Saw Greenbrier, Bullbrier, Tramp's Trouble
Smilax ecirrhata upright carrionflower
Smilax glauca Whiteleaf Greenbrier, Wild Sarsaparilla, Sawbrier
Smilax herbacea Common Carrionflower
Smilax hugeri Huger's Carrionflower
Smilax lasioneura Midwestern Carrionflower
Smilax laurifolia Bamboo-vine, Blaspheme-vine, Wild Bamboo, Bayvine
Smilax pseudochina Coastal Carrionflower, Bamboo-vine
Smilax pulverulenta downy carrionflower
Smilax pumila Dwarf Smilax, Sarsaparilla-vine
Smilax rotundifolia Common Greenbrier, Common Catbrier, Bullbrier, Horsebrier
Smilax smallii Sweet-scented Smilax, Unarmed Catbrier, Jackson-brier
Smilax tamnoides Bristly Greenbrier, Hellfetter, China-root
Smilax walteri Coral Greenbrier, Red-berried Swamp Smilax
Solanum americanum Common Nightshade, American Black Nightshade
Solanum carolinense var. carolinense Horse Nettle, Bull Nettle, Ball Nettle
Solanum diphyllum Paired-leaf Nightshade, twoleaf nightshade
Solanum dulcamara var. dulcamara Bittersweet, Deadly Nightshade
Solanum nigrum European Black Nightshade
Solanum physalifolium Hairy Nightshade
Solanum pseudocapsicum Jerusalem Cherry
Solanum ptycanthum American Black Nightshade
Solanum rostratum Buffalo-bur, Kansas-thistle
Solanum sisymbriifolium Sticky Nightshade
Solanum tampicense Wetland Nightshade, Aquatic Soda Apple
Solanum torvum Turkeyberry
Solanum viarum Tropical Soda Apple
Solidago altissima Tall Goldenrod, Field Goldenrod, Common Goldenrod
Solidago arguta var. arguta Forest Goldenrod, Sharp-leaved Goldenrod
Solidago arguta var. arguta Goldenrod
Solidago arguta var. boottii Boott's Goldenrod
Solidago arguta var. caroliniana Vasey's Goldenrod
Solidago auriculata Eared Goldenrod
Solidago bicolor Silverrod, White Goldenrod
Solidago caesia Bluestem Goldenrod, Wreath Goldenrod, Axillary Goldenrod, Bridal-wreath Goldenrod
Solidago canadensis var. canadensis Northern Common Goldenrod
Solidago canadensis var. hargeri Harger's Common Goldenrod
Solidago curtisii Curtis' Goldenrod
Solidago erecta Slender Goldenrod, Erect Goldenrod
Solidago faucibus Gorge Goldenrod
Solidago fistulosa Hairy Pineywoods Goldenrod, Shaggy Pineywoods Goldenrod
Solidago flaccidifolia Appalachian Goldenrod, mountain goldenrod
Solidago flexicaulis Zigzag Goldenrod, Broad-leaved Goldenrod
Solidago gigantea Smooth Goldenrod, Late Goldenrod
Solidago glomerata Skunk Goldenrod, Cluster Goldenrod
Solidago gracillima Pine Barren Bog Goldenrod
Solidago gracillima Southern Bog Goldenrod, Graceful Goldenrod
Solidago gracillima Southern Bog Goldenrod
Solidago hispida var. hispida Hairy Goldenrod
Solidago juncea Early Goldenrod
Solidago nemoralis var. nemoralis Eastern Gray Goldenrod
Solidago odora var. chapmanii Chapman's Goldenrod
Solidago odora var. odora Sweet Goldenrod, Licorice Goldenrod, Fragrant Goldenrod
Solidago patula var. patula Northern Roughleaf Goldenrod
Solidago petiolaris var. petiolaris downy ragged goldenrod
Solidago pinetorum Small's Goldenrod, Pineywoods Goldenrod
Solidago plumosa Yadkin River Goldenrod
Solidago puberula var. puberula Downy Goldenrod
Solidago puberula var. pulverulenta Downy Goldenrod
Solidago pulchra Carolina Goldenrod, Beautiful Goldenrod
Solidago roanensis Roan Mountain Goldenrod
Solidago rugosa ssp. aspera Wrinkle-leaf goldenrod
Solidago rugosa ssp. aspera Cronquist's Goldenrod
Solidago rugosa ssp. aspera Hackberry-leaf Goldenrod
Solidago rugosa ssp. rugosa var. rugosa Wrinkle-leaf goldenrod, Rough-stemmed Goldenrod
Solidago rupestris Riverbank Goldenrod, Rock Goldenrod
Solidago sempervirens var. mexicana Southern Seaside Goldenrod
Solidago sempervirens var. sempervirens Northern Seaside Goldenrod
Solidago simulans Granite Dome Goldenrod, Cliffside Goldenrod
Solidago speciosa var. rigidiuscula showy goldenrod
Solidago speciosa var. speciosa Showy Goldenrod
Solidago sphacelata Speckled Goldenrod, False Goldenrod, Limestone Goldenrod
Solidago spithamaea Blue Ridge Goldenrod
Solidago squarrosa Stout Goldenrod, Ragged Goldenrod, Squarrose Goldenrod
Solidago tortifolia Leafy Pinelands Goldenrod, Leafy Pineywoods Goldenrod, twistleaf goldenrod
Solidago uliginosa var. uliginosa Northern Bog Goldenrod, Swamp Goldenrod
Solidago ulmifolia var. ulmifolia Elmleaf Goldenrod
Solidago verna Spring-flowering Goldenrod, Spring Goldenrod
Sonchus arvensis ssp. arvensis Field Sow-thistle, Perennial Sow-thistle
Sonchus arvensis ssp. uliginosus Field Sow-thistle, Perennial Sow-thistle
Sonchus asper Prickly Sow-thistle, Spiny-leaf Sow-thistle
Sonchus oleraceus Annual Sow-thistle, Common Sow-thistle
Sophora japonica Pagoda Tree
Sorbus americana Mountain-ash, American Mountain-ash, American Rowan
Sorbus aucuparia European Mountain-ash, Rowan
Sorghastrum elliottii Elliot's Indiangrass, Slender Indiangrass, Nodding Indiangrass
Sorghastrum nutans Yellow Indiangrass, Prairie Indiangrass
Sorghastrum secundum Lopsided Indiangrass
Sorghum bicolor ssp. bicolor Sorghum, Milo, Broomcorn, Sorgo
Sorghum halepense Johnsongrass
Sparganium americanum American Bur-reed
Spartina alterniflora Saltmarsh Cordgrass, Smooth Cordgrass
Spermacoce assurgens woodland false buttonweed
Spermacoce verticillata Shrubby Buttonweed, Whitehead Broom, Boton Blanco
Sphagneticola trilobata Wedelia
Sphenopholis intermedia Slender Wedgegrass
Spigelia marilandica Indian Pink, Woodland Pinkroot, Wormgrass
Spiraea alba var. alba Narrowleaf Meadowsweet, Pipestem
Spiraea alba var. latifolia Broadleaf Meadowsweet
Spiraea betulifolia var. corymbosa Dwarf Spiraea, Rock Spiraea
Spiraea japonica var. fortunei Japanese Spiraea
Spiraea thunbergii Thunberg's meadowsweet
Spiraea tomentosa Hardhack, Steeplebush
Spiraea virginiana Virginia Spiraea, Appalachian Spiraea
Spiranthes brevilabris Short-lipped Ladies'-tresses
Spiranthes cernua Nodding Ladies'-tresses
Spiranthes eatonii Eaton's Ladies'-tresses
Spiranthes floridana Florida Ladies'-tresses
Spiranthes lacera var. gracilis Southern Slender Ladies'-tresses
Spiranthes lacera var. lacera Northern Slender Ladies'-tresses
Spiranthes laciniata Lace-lip Ladies'-tresses, Lace-lip Spiral Orchid
Spiranthes longilabris Long-lipped Ladies'-tresses, Giant Spiral Orchid
Spiranthes lucida Shining Ladies'-tresses
Spiranthes magnicamporum Great Plains Ladies'-tresses
Spiranthes ochroleuca Yellow Ladies-tresses, Yellow Nodding Ladies'-tresses
Spiranthes odorata Fragrant Ladies'-tresses, Marsh Ladies'-tresses
Spiranthes ovalis var. erostellata Lesser Ladies'-tresses, Oval Ladies'-tresses
Spiranthes ovalis var. ovalis Oval Ladies'-tresses
Spiranthes praecox Grass-leaved Ladies'-tresses, Giant Ladies'-tresses
Spiranthes praecox Woodland Ladies'-tresses, Pale Green Ladies'-tresses
Spiranthes tuberosa Little Ladies'-tresses, Little Pearl-twist
Spiranthes vernalis Spring Ladies'-tresses
Spirodela polyrrhiza Greater Duckweed, Duckmeat, Minnow-fole, Giant Duckweed
Sporobolus clandestinus Rough Dropseed
Sporobolus curtissii Curtiss Dropseed
Sporobolus heterolepis Prairie Dropseed
Sporobolus indicus var. indicus Smut Grass, Blackseed
Sporobolus indicus var. pyramidalis West Indian Dropseed
Sporobolus junceus Sandhills Dropseed, Pineywoods Dropseed
Stachys annua Annual Woundwort, Annual Hedgenettle
Stachys appalachiana Appalachian hedgenettle
Stachys arvensis Staggerweed
Stachys aspera Rough-leaved Hedgenettle
Stachys byzantina Lamb's-ear
Stachys clingmanii Clingman's Hedgenettle
Stachys cordata Heart-leaved Hedgenettle
Stachys cordata Nuttall’s Hedgenettle
Stachys crenata Mouse's-ear, Shade Betony
Stachys eplingii Epling's Hedgenettle
Stachys floridana Florida Betony, Rattlesnake-weed, Florida Hedgenettle
Stachys germanica German hedgenettle
Stachys hyssopifolia Hyssop-leaved Hedgenettle
Stachys hyssopifolia hyssop-leaved hedgenettle
Stachys latidens Broad-toothed Hedgenettle
Stachys palustris marsh hedgenettle
Stachys pilosa var. arenicola Woundwort
Stachys tenuifolia Smooth Hedgenettle
Stachys tenuifolia Hispid Hedgenettle
Staphylea trifolia Bladdernut
Stellaria alsine Bog Chickweed, Bog Stitchwort, Longstalk Starwort
Stellaria graminea Lesser Stitchwort
Stellaria longifolia var. longifolia Longleaf Stitchwort
Stellaria media ssp. media Common Chickweed
Stellaria pubera Giant Chickweed, Star Chickweed, Great Chickweed, Common Starwort
Stenanthium gramineum + Featherbells
Stenaria nigricans var. nigricans Diamond-flower, Glade Bluet
Stewartia malacodendron Silky Camellia, Virginia Stewartia, Stewartia
Stewartia ovata Mountain Camellia, Mountain Stewartia
Stillingia aquatica Corkwood, Water Toothleaf
Stillingia sylvatica ssp. sylvatica Queen's-delight
Stipulicida setacea var. setacea Coastal Plain Wireplant
Stokesia laevis Stoke's Aster, Blue Stokesia
Streptopus amplexifolius var. amplexifolius Twisted Stalk, White Mandarin, Pagoda-bells
Streptopus lanceolatus var. lanceolatus Rosy Twisted Stalk, Eastern Rose Mandarin, Eastern Twisted-stalk
Striga asiatica Witchweed
Strophostyles helvola Annual Sand Bean, Beach Pea, Trailing Wild Bean
Strophostyles umbellata Perennial Sand Bean, Perennial Wild Bean, Pink Wild Bean
Stylisma aquatica Water Dawnflower
Stylisma humistrata Southern Dawnflower
Stylisma patens ssp. angustifolia Narrowleaf Dawnflower
Stylisma patens ssp. patens Sandhill Dawnflower, Sandhill Morning Glory, Common Dawnflower
Stylisma pickeringii var. pickeringii Pickering's Dawnflower, Pickering's Morning Glory
Stylodon carneus Carolina Vervain, Carolina False Vervain
Stylophorum diphyllum Celandine Poppy, Woods-poppy
Stylosanthes biflora Pencil-flower
Styrax americanus American Storax, American Snowbell
Styrax grandifolius Bigleaf Snowbell, Large-leaved Storax
Symphoricarpos albus var. albus Common Snowberry
Symphoricarpos orbiculatus Coralberry, Indian Currant
Symphyotrichum concolor Eastern Silvery Aster
Symphyotrichum cordifolium Common Blue Wood Aster, Heart-leaved Aster
Symphyotrichum divaricatum Midwestern Salt-marsh Aster
Symphyotrichum dumosum + Bushy Aster, Long-stalked Aster, Rice-button Aster
Symphyotrichum elliotii Elliott's Aster, Southern Swamp Aster
Symphyotrichum georgianum Georgia Aster
Symphyotrichum grandiflorum Big-headed Aster, Rough Aster, Large-headed Aster
Symphyotrichum laeve var. concinnum Narrow-leaved Smooth Blue Aster
Symphyotrichum laeve var. laeve Smooth Blue Aster
Symphyotrichum lanceolatum ssp. lanceolatum var. latifolium Broad-leaved Panicled Aster
Symphyotrichum lateriflorum var. lateriflorum Calico Aster, Starved Aster
Symphyotrichum lowrieanum Smooth Heart-leaved Aster, Lowrie's Aster
Symphyotrichum novae-angliae New England Aster
Symphyotrichum novi-belgii var. elodes New York Aster
Symphyotrichum oblongifolium Eastern Aromatic Aster, Shale-barren Aster
Symphyotrichum patens var. patens Late Purple Aster, Common Clasping Aster, Late Blue Aster, Skydrop Aster
Symphyotrichum phlogifolium Appalachian Clasping Aster
Symphyotrichum pilosum var. pilosum Frost Aster, White Heath Aster
Symphyotrichum praealtum var. angustior Willow Aster, Veiny Lined Aster, Tall Aster
Symphyotrichum prenanthoides Crooked-stemmed Aster, Zigzag Aster
Symphyotrichum puniceum var. puniceum Purple-stemmed Aster, Swamp Aster
Symphyotrichum racemosum Small White Aster
Symphyotrichum retroflexum Curtis' Aster
Symphyotrichum sericeum Western Silvery Aster
Symphyotrichum shortii Short's Aster, Midwestern Blue Heart-leaved Aster
Symphyotrichum subulatum Eastern Salt-marsh Aster
Symphyotrichum tenuifolium Perennial Salt-marsh Aster
Symphyotrichum undulatum Wavyleaf Aster
Symphyotrichum urophyllum White Arrowleaf Aster, Arrowleaf Blue Wood Aster
Symphyotrichum walteri Walter's Aster
Symphytum asperum Prickly Comfrey
Symplocarpus foetidus Skunk Cabbage
Symplocos tinctoria Horsesugar, Sweetleaf
Syngonanthus flavidulus Yellow Hatpins, Bantam-buttons
Syringa vulgaris Common Lilac, French Lilac
Taenidia integerrima Yellow Pimpernel, Golden Alexander
Talinum paniculatum Jewels-of-Opar
Tamarix africana African Tamarisk
Tamarix canariensis Canary Island Tamarisk
Tamarix chinensis Chinese Tamarisk
Tamarix gallica French Tamarisk
Tamarix parviflora Small-flower Tamarisk
Tamarix ramosissima Salt-cedar, Tamarisk
Tamarix tetragyna Tamarix
Tanacetum balsamita Mint-geranium
Tanacetum parthenium Feverfew
Tanacetum vulgare Common Tansy, Golden-buttons
Taraxacum laevigatum Red-seeded Dandelion
Taraxacum officinale ssp. officinale Common Dandelion
Taxodium ascendens Pond Cypress
Taxodium distichum Bald Cypress
Taxus canadensis Canada Yew, American Yew
Tephrosia hispidula sprawling hoarypea
Tephrosia spicata Spiked Hoarypea, Brown-hair Tephrosia, Tawny Goat's Rue
Tephrosia virginiana Virginia Goat's Rue, Devil's Shoestrings
Tetragonotheca helianthoides Squarehead, Pineland-ginseng
Teucrium canadense + American Germander, Wood Sage
Thalia dealbata Powdery Thalia, Powdery Alligator-flag
Thalictrum aquilegifolium Columbine Meadow-rue
Thalictrum clavatum Mountain Meadow-rue, Lady-rue
Thalictrum coriaceum Appalachian Meadow-rue, Maid of the Mist
Thalictrum dasycarpum Purple Meadow-rue
Thalictrum debile Trailing Meadow-rue
Thalictrum dioicum Early Meadow-rue
Thalictrum macrostylum Small-flowered Meadow-rue, Small-leaved Meadow-rue
Thalictrum pubescens Common Tall Meadow-rue, King-of-the-meadow, Late Meadow-rue
Thalictrum revolutum Skunk Meadow-rue, Waxy Meadow-rue
Thalictrum thalictroides Windflower, Rue-anemone
Thaspium barbinode Hairy-jointed Meadow Parsnip
Thaspium pinnatifidum cutleaf meadowparsnip
Thaspium trifoliatum var. aureum Meadow Parsnip, Woodland Parsnip
Thaspium trifoliatum var. trifoliatum Purple Meadow Parsnip, Woodland Parsnip
Thelypteris dentata Downy Maiden Fern, Soft Fern, Downy Shield Fern
Thelypteris kunthii Kunth's Maiden Fern, Southern Shield Fern, Southern Wood Fern
Thelypteris noveboracensis New York Fern
Thelypteris palustris var. pubescens Marsh Fern
Thelypteris simulata Bog Fern, Massachusetts Fern
Thermopsis fraxinifolia Ash-leaf Golden-banner
Thermopsis mollis Appalachian Golden-banner, Bush Pea
Thermopsis villosa Aaron's Rod, Blue Ridge Golden-banner, Hairy Bush Pea
Thlaspi alliaceum Garlic Penny-cress
Thlaspi arvense Field Penny-cress, Frenchweed
Thuja occidentalis American Arborvitae, Eastern Arborvitae, Northern White Cedar, Flat Cedar
Tiarella cordifolia var. collina Common Foamflower, False Miterwort
Tiarella cordifolia var. cordifolia Mountain Foamflower, False Miterwort
Tilia americana var. americana American Basswood, Northern Basswood
Tilia americana var. caroliniana Carolina Basswood, Southern Basswood
Tilia americana var. heterophylla Mountain Basswood, White Basswood
Tilia cordata Little-leaf Linden, Small-leaved Linden, Small-leaved Lime
Tillandsia recurvata Ball-moss, Bunch-moss
Tillandsia usneoides Spanish Moss
Tipularia discolor Cranefly Orchid
Tithonia rotundifolia Mexican Sunflower, Clavel de Muerto
Tofieldia glabra Carolina Bog Asphodel, White Asphodel
Torilis arvensis ssp. arvensis Spreading Hedge Parsley, Spreading Bur-parsley, Field Hedge Parsley
Torilis japonica Japanese Hedge Parsley
Torreya taxifolia Florida Torreya, Stinking-cedar
Toxicodendron pubescens Poison Oak
Toxicodendron radicans ssp. radicans Eastern Poison Ivy
Toxicodendron rydbergii Wesern Poison Ivy
Toxicodendron vernix Poison Sumac, Thunderwood
Trachelospermum difforme Climbing Dogbane
Trachelospermum jasminoides Confederate Jasmine, Star Jasmine
Tradescantia hirsuticaulis Hairy Spiderwort
Tradescantia hirsutiflora Hairy Spiderwort
Tradescantia ohiensis Smooth Spiderwort
Tradescantia subaspera var. montana Zigzag Spiderwort, Wide-leaved Spiderwort
Tradescantia virginiana Virginia Spiderwort
Tragia urens Wavyleaf Noseburn, Southeastern Noseburn
Tragia urticifolia Nettleleaf Noseburn, Tragia
Tragopogon dubius Vegetable Oyster, Yellow Salsify, Western Salsify, Yellow Goatsbeard
Tragopogon porrifolius Salsify, Vegetable Oyster, Oyster Plant
Trapa natans European Water Chestnut, Water Caltrop
Trautvetteria caroliniensis var. caroliniensis Carolina Tassel-rue, False Bugbane
Trepocarpus aethusae Whitenymph
Triadenum tubulosum Southern Marsh St. Johnswort
Triadenum virginicum Common Marsh St. Johnswort
Triadenum walteri Walter’s Marsh St. Johnswort
Triadica sebifera Popcorn Tree, Chinese Tallow-tree
Triantha glutinosa Sticky Bog Asphodel, Northern Bog Asphodel, False Asphodel
Triantha racemosa Coastal Bog Asphodel, Coastal False Asphodel, Southern Bog Asphodel, Savanna Asphodel
Tribulus cistoides Jamaica Feverplant, Burr-nut
Tribulus terrestris Puncture-weed, Caltrop, Devil's-thorn
Trichomanes boschianum Appalachian Filmy Fern, Bristle Fern
Trichomanes petersii Dwarf Filmy Fern, Bristle Fern, Peters' Filmy Fern
Trichophorum cespitosum Deerhair Bulrush, Deergrass
Trichostema brachiatum Glade Blue Curls, False Pennyroyal, Fluxweed
Trichostema dichotomum Common Blue Curls
Trichostema setaceum Narrowleaf Blue Curls
Tridens carolinianus Carolina Triodia, Carolina Fluffgrass
Tridens flavus var. flavus Purpletop, Purpletop Tridens, Greasy Grass, Tall Redtop
Tridens strictus Longspike Tridens, Longspike Fluffgrass, Spike Triodia
Trientalis borealis ssp. borealis Northern Starflower, Maystar
Trifolium arvense Rabbitfoot Clover
Trifolium aureum Large Hop Clover, Yellow Clover
Trifolium campestre Hop Clover, Low Hop Clover, Field Clover
Trifolium carolinianum Wild White Clover, Carolina Clover
Trifolium dubium Least Hop Clover, Low Hop Clover
Trifolium fragiferum Strawberry Clover
Trifolium hybridum Alsike Clover
Trifolium incarnatum Crimson Clover
Trifolium pratense Red Clover
Trifolium reflexum Buffalo Clover
Trifolium repens White Clover, White Dutch Clover, Ladino Clover
Trifolium resupinatum Persian Clover, Reversed Clover
Trifolium vesiculosum Arrowleaf Clover
Trillium catesbaei Catesby's Trillium, Rosy Wake-robin, Bashful Trillium, Rose Trillium
Trillium cernuum Northern Nodding Trillium
Trillium cuneatum Little Sweet Betsy, Purple Toadshade
Trillium decipiens Chattahoochee Trillium, Deceptive Trillium
Trillium decumbens Decumbent Trillium, Trailing Trillium
Trillium discolor Pale Yellow Trillium, Faded Trillium, Small Yellow Toadshade, Savannah River Trillium
Trillium erectum Wake-robin, Red Trillium, Stinking Willie, Stinking Benjamin
Trillium flexipes Bent Trillium, Bent White Trillium, Bentstalk Trillium
Trillium grandiflorum Large-flowered Trillium, White Wake-robin, Great White Trillium, Showy Wake-robin
Trillium lancifolium Lanceleaf Trillium, Narrowleaf Trillium
Trillium ludovicianum Louisiana Trillium, Louisiana Wake-robin
Trillium luteum Yellow Trillium, Yellow Toadshade, Lemon Trillium, Wax Trillium
Trillium maculatum Mottled Trillium, Spotted Trillium
Trillium persistens Persistent Trillium, Edna's Trillium
Trillium pusillum + Carolina Least Trillium, Virginia Dwarf Trillium
Trillium recurvatum Prairie Trillium, Prairie Wake-robin
Trillium reliquum Relict Trillium
Trillium rugelii Southern Nodding Trillium
Trillium sessile Sessile Trillium, Sessile Toadshade, Toad Trillium
Trillium simile Sweet White Trillium, Confusing Trillium, Jeweled Trillium
Trillium stamineum Twisted Trillium
Trillium sulcatum Southern Red Trillium, Barksdale's Trillium
Trillium underwoodii Underwood's Trillium
Trillium undulatum Painted Trillium, Striped Wake-robin
Trillium vaseyi Vasey's Trillium, Sweet Trillium, Sweet Beth
Triodanis perfoliata Venus' Looking-glass
Triosteum angustifolium Yellow-fruited Horse-gentian, Lesser Horse-gentian
Triosteum aurantiacum var. aurantiacum Orange-fruited Horse-gentian
Triosteum perfoliatum Perfoliate Horse-gentian, Perfoliate Tinker's-weed, Wild Coffee, Feverwort
Triphora trianthophora Nodding Pogonia, Three Birds Orchid, Nodding Ettercap
Triplasis americana Southern Sandgrass
Triplasis purpurea Purple Sandgrass
Tripleurospermum perforatum Scentless Chamomile, False Chamomile
Tripsacum dactyloides Gama Grass, Eastern Gamagrass
Tristagma uniflorum Spring Starflower, Spring Star, Star of Bethlehem
Triticum aestivum Bread Wheat
Tsuga canadensis Eastern Hemlock, Canada Hemlock
Tsuga caroliniana Carolina Hemlock
Tussilago farfara Coltsfoot
Typha angustifolia Narrowleaf Cattail
Typha domingensis Southern Cattail
Typha latifolia Common Cattail
Typha Xglauca Hybrid Cattail
Ulmus alata Winged Elm
Ulmus americana American Elm, White Elm
Ulmus americana Florida Elm
Ulmus crassifolia Cedar Elm
Ulmus glabra Wych Elm, Scotch Elm
Ulmus parvifolia Lacebark Elm, Chinese Elm
Ulmus procera English Elm, English Cork Elm
Ulmus pumila Siberian Elm, Dwarf Elm
Ulmus rubra Slippery Elm, Red Elm
Ulmus serotina September Elm, Rock Elm
Uniola paniculata Sea Oats
Urochloa maxima Guinea Grass
Urochloa ramosa Browntop Millet, Dixie Signalgrass
Urtica chamaedryoides Weak Nettle, Dwarf Stinging Nettle
Urtica dioica ssp. dioica European Stinging Nettle, Great Nettle
Urtica dioica ssp. gracilis American Stinging Nettle
Utricularia cornuta Horned Bladderwort
Utricularia foliosa Flatstem Bladderwort
Utricularia gibba Shortspur Creeping Bladderwort
Utricularia gibba Longspur Creeping Bladderwort
Utricularia inflata Swollen Bladderwort, Inflated Bladderwort, Floating Bladderwort
Utricularia juncea Southern Bladderwort, Slender Horned Bladderwort
Utricularia macrorhiza Greater Bladderwort
Utricularia purpurea Purple Bladderwort
Utricularia radiata Small Swollen Bladderwort, Floating Bladderwort, little floating bladderwort
Utricularia resupinata Northeastern Bladderwort, Resupinate Bladderwort, Lavender Bladderwort
Utricularia simulans fringed bladderwort
Utricularia striata Fibrous Bladderwort
Utricularia subulata Slender Bladderwort, Zigzag Bladderwort
Uvularia grandiflora Large-flowered Bellwort
Uvularia perfoliata Perfoliate Bellwort
Uvularia puberula Mountain Bellwort, Appalachian Bellwort, Carolina Bellwort, Coastal Bellwort
Uvularia sessilifolia Wild-oats, Sessile-leaf Bellwort, Straw-lily
Vaccinium arboreum Sparkleberry, Farkleberry
Vaccinium caesariense New Jersey Highbush Blueberry
Vaccinium corymbosum Smooth Highbush Blueberry
Vaccinium crassifolium ssp. crassifolium Creeping Blueberry
Vaccinium crassifolium ssp. sempervirens Rayner's Blueberry
Vaccinium darrowii Darrow's Blueberry
Vaccinium elliottii Mayberry, Elliott's Blueberry
Vaccinium erythrocarpum Bearberry, Highbush Cranberry, Mountain Cranberry
Vaccinium formosum Southern Highbush Blueberry, Swamp Highbush Blueberry
Vaccinium fuscatum Hairy Highbush Blueberry, Black Highbush Blueberry
Vaccinium hirsutum Woollyberry, Hairy Blueberry
Vaccinium macrocarpon Cranberry, Large Cranberry
Vaccinium myrsinites Southern Evergreen Blueberry
Vaccinium oxycoccos Small Cranberry
Vaccinium pallidum Dryland Blueberry, Lowbush Blueberry, Upland Low Blueberry, Hillside Blueberry
Vaccinium simulatum Mountain Highbush Blueberry
Vaccinium stamineum Southern Deerberry
Vaccinium stamineum Dwarf Deerberry
Vaccinium stamineum Florida Deerberry, Whiteleaf Deerberry
Vaccinium stamineum Common Deerberry
Vaccinium stamineum Appalachian Deerberry
Vaccinium tenellum Southern Blueberry, Dwarf Blueberry, Small Cluster Blueberry, Narrowleaf Blueberry
Vaccinium virgatum Rabbiteye Blueberry, Swamp Blueberry, Rabbitberry
Valerianella locusta European Corn-salad
Valerianella radiata Corn-salad, Beaked Corn-salad
Valerianella radiata Corn-salad
Valerianella umbilicata Navel Corn-salad
Vallisneria americana Eelgrass, Water-celery, Tapegrass
Veratrum hybridum Crisped Bunchflower, Broadleaf Bunchflower
Veratrum parviflorum Mountain Bunchflower, Small-flowered Hellebore, Small False Hellebore
Veratrum virginicum Virginia Bunchflower, Bog Bunchflower
Veratrum viride White-hellebore, Indian Poke, False Hellebore, Cornhusk Lily
Veratrum woodii Ozark Bunchflower, Wood's False-hellebore
Verbascum blattaria Moth Mullein
Verbascum thapsus Woolly Mullein, Common Mullein, Flannel-plant, Velvet-plant
Verbascum virgatum Wand Mullein, Twiggy Mullein, Moth Mullein
Verbena bonariensis Purpletop Vervain, Tall Vervain
Verbena bonariensis var. conglomerata Purpletop Vervain, Tall Vervain
Verbena brasiliensis Brazilian Vervain
Verbena hastata var. hastata Blue Vervain, Common Vervain, Simpler's-joy
Verbena rigida Stiff Verbena
Verbena simplex Narrowleaf Vervain
Verbena stricta Hoary Vervain
Verbena urticifolia var. urticifolia White Vervain, Nettleleaf Verbena, Velvetleaf Vervain
Verbesina alternifolia Common Wingstem
Verbesina occidentalis Southern Crownbeard
Verbesina virginica var. laciniata Southern Frostweed
Verbesina virginica var. virginica White Crownbeard, Common Frostweed, White Wingstem, Virginia Wingstem
Verbesina walteri Walter's Wingstem, Carolina Crownbeard, Walter's Crownbeard
Vernicia fordii Tung-oil Tree
Vernonia acaulis Stemless Ironweed, Carolina Ironweed
Vernonia angustifolia ssp. angustifolia Narrowleaf Ironweed, Slender Ironweed
Vernonia flaccidifolia Tennessee Ironweed
Vernonia gigantea ssp. gigantea Tall Ironweed, Common Ironweed
Vernonia glauca Broadleaf Ironweed, Appalachian Ironweed, Tawny Ironweed
Vernonia lettermannii narrowleaf ironweed
Vernonia noveboracensis New York Ironweed
Veronica americana American Speedwell, American Brooklime
Veronica anagallis-aquatica Water Speedwell, Brook Pimpernel
Veronica arvensis Corn Speedwell, Wall Speedwell
Veronica beccabunga European Speedwell, European Brooklime
Veronica chamaedrys Germander Speedwell
Veronica hederifolia Ivyleaf Speedwell
Veronica officinalis var. officinalis Common Speedwell, Gypsyweed, Heath Speedwell
Veronica peregrina ssp. peregrina Common Purslane Speedwell
Veronica persica Bird's-eye Speedwell
Veronica scutellata Marsh Speedwell, Narrowleaf Speedwell
Veronica serpyllifolia ssp. serpyllifolia Thymeleaf Speedwell
Veronicastrum virginicum Culver's Root
Viburnum acerifolium Mapleleaf Viburnum, Maple-leaved Arrowwood, Dockmackie
Viburnum bracteatum Limerock Arrowwood
Viburnum dentatum var. dentatum Arrowwood
Viburnum dentatum var. dentatum Carolina Arrowwood
Viburnum dentatum var. dentatum Southern Arrowwood
Viburnum dilatatum Linden Viburnum
Viburnum lantana Wayfaring Tree
Viburnum lantanoides Hobblebush, Moosewood, Witch Hobble, Tangle-legs
Viburnum lentago Nannyberry, Sheepberry
Viburnum nudum var. cassinoides Northern Wild Raisin, Withe-rod, Shonny Haw, Shawnee Haw
Viburnum nudum var. nudum Southern Wild Raisin, Possumhaw Viburnum, Swamp Viburnum, Swamp-haw
Viburnum obovatum Small-leaf Virburnum, Walter's Viburnum
Viburnum opulus var. americanum Highbush-cranberry, Cranberry Tree, American Cranberry-bush
Viburnum opulus var. opulus Guelder-rose, Snowball
Viburnum plicatum Japanese Snowball, Doublefile Viburnum
Viburnum prunifolium Blackhaw, Nannyberry
Viburnum rafinesquianum Downy Arrowwood
Viburnum recognitum Smooth Arrowwood, Southern Arrowwood
Viburnum rufidulum Rusty Blackhaw, Blue Haw, Southern Black Haw, Rusty Haw
Viburnum sieboldii Siebold's Viburnum
Vicia acutifolia Sand Vetch, Fourleaf Vetch
Vicia americana ssp. americana American Vetch, Purple Vetch, Tare
Vicia caroliniana Carolina Vetch, Wood Vetch, Pale Vetch
Vicia cracca ssp. cracca Cow Vetch, Tufted Vetch
Vicia grandiflora Bigflower Vetch, Large Yellow Vetch
Vicia hirsuta Tiny Vetch, Hairy Tare
Vicia lathyroides Spring Vetch
Vicia sativa ssp. nigra Narrowleaf Vetch
Vicia sativa ssp. sativa Common Vetch
Vicia tetrasperma Slender Vetch, Smooth Tare, Lentil Vetch, Four-seeded Vetch
Vicia villosa ssp. varia Smooth Vetch, Winter Vetch
Vicia villosa ssp. villosa Hairy Vetch, Fodder Vetch, Winter Vetch
Vinca major Bigleaf Periwinkle, Greater Periwinkle
Vinca minor Common Periwinkle
Viola affinis Thinleaf Violet, LeConte's Violet, Missouri Violet, Sand Violet
Viola appalachiensis Appalachian Violet, Henry's Violet
Viola arvensis European Field Pansy
Viola bicolor Johnny-jump-up, Wild Pansy, Field Pansy
Viola blanda var. blanda Sweet White Violet
Viola blanda var. palustriformis sweet white violet
Viola brittoniana var. brittoniana northern coastal violet
Viola brittoniana var. pectinata northern coastal violet
Viola canadensis var. canadensis Canada Violet, Tall White Violet
Viola cucullata Blue Marsh Violet, Bog Violet
Viola egglestonii Cedar Glade Violet
Viola hastata Halberd-leaf Violet, Spearleaf Violet, Halberd-leaved Yellow Violet, Silverleaf Violet
Viola hirsutula Southern Wood Violet, Silvery Purple-leaf Violet
Viola labradorica American Dog-violet
Viola lanceolata ssp. lanceolata Lanceleaf Violet, Narrow-leaved Violet, White Bog Violet
Viola lanceolata ssp. vittata Strapleaf Violet, White Bog Violet
Viola macloskeyi ssp. pallens Wild White Violet, White Marsh Violet
Viola odorata Sweet Violet, English Violet
Viola pedata Birdsfoot Violet
Viola pedata Sandhills Birdsfoot Violet
Viola pubescens var. pubescens Hairy Yellow Forest Violet
Viola pubescens var. scabriuscula Smooth Yellow Forest Violet
Viola rostrata Long-spurred Violet
Viola rotundifolia Round-leaf Yellow Violet, Early Yellow Violet
Viola sagittata var. ovata Ovate-leaf Violet, Downy Violet
Viola sagittata var. sagittata Arrow-leaved Violet, Arrowhead Violet
Viola septemloba Cleft-leaved Violet
Viola septentrionalis Northern Blue Violet
Viola sororia Dooryard Violet, Confederate Violet, Common Blue Violet
Viola striata Pale Violet, Creamy Violet
Viola tricolor Johnny-jump-up
Viola triloba var. dilatata Wood Violet, Wavy-leaved Violet
Viola triloba var. triloba Early Blue Violet, Wood Violet, Palmate-leaved Violet
Viola tripartita Three-parted Yellow Violet, Three-parted Violet
Viola tripartita Three-parted Yellow Violet, Three-parted Violet
Viola villosa Southern Woolly Violet
Viola walteri Walter's Violet, Prostrate Blue Violet
Viola Xesculenta [septemloba X triloba] Salad Violet
Viola Xprimulifolia [lanceolata X macloskeyi] Primrose-leaf Violet
Vitex agnus-castus + Chaste-tree
Vitex rotundifolia Beach Vitex, Roundleaf Chaste-tree
Vitis aestivalis var. aestivalis Summer Grape
Vitis aestivalis var. bicolor Silverleaf Grape
Vitis cinerea var. baileyana Possum Grape
Vitis cinerea var. cinerea Graybark Grape, Pigeon Grape
Vitis cinerea var. floridana Florida Grape
Vitis labrusca Fox Grape
Vitis riparia Riverbank Grape
Vitis rotundifolia var. munsoniana Munson Grape, Bullace Grape
Vitis rotundifolia var. rotundifolia Muscadine, Scuppernong
Vitis vulpina Frost Grape, Winter Grape, Chicken Grape
Vulpia myuros Rat-tail Fescue
Vulpia octoflora var. octoflora Southern Six-weeks Fescue
Wahlenbergia marginata Wahlenbergia, Asian Rockbell, Asiatic bellflower
Waldsteinia fragarioides ssp. doniana Southern Barren Stawberry
Waldsteinia fragarioides ssp. fragarioides Northern Barren Strawberry
Waldsteinia lobata Piedmont Barren Strawberry, Lobed Barren Strawberry
Waltheria indica Sleepy Morning
Warea cuneifolia Carolina Warea, Carolina Pineland-cress
Wisteria √óformosa [floribunda √ó sinensis] Hybrid Asian Wisteria
Wisteria floribunda Japanese Wisteria
Wisteria frutescens American Wisteria, Swamp Wisteria, Atlantic Wisteria
Wisteria sinensis Chinese Wisteria
Wolffia columbiana Colombian Watermeal
Wolffiella gladiata Bog-mat, Mud-midgets
Woodsia appalachiana Appalachian Woodsia, Appalachian Cliff Fern, Mountain Woodsia
Woodsia ilvensis Rusty Cliff Fern, Rusty Woodsia
Woodsia obtusa ssp. obtusa Blunt-lobed Cliff Fern, Common Woodsia
Woodwardia areolata Netted Chain Fern, Net-veined Chain Fern
Woodwardia virginica Virginia Chain Fern
Xanthium spinosum Spiny Cocklebur
Xanthium strumarium var. glabratum Cocklebur
Xanthorhiza simplicissima Yellowroot
Xanthosoma sagittifolium Arrowleaf Elephant Ear, Malanga
Xerophyllum asphodeloides Turkeybeard, Beargrass, Mountain-asphodel
Ximenia americana Tallow Wood, Hog Plum
Xyris ambigua Bog Yellow-eyed Grass
Xyris baldwiniana Grassleaf Yellow-eyed Grass, Baldwin's Yellow-eyed Grass
Xyris brevifolia Shortleaf Yellow-eyed Grass
Xyris caroliniana Pineland Yellow-eyed Grass, Carolina Yellow-eyed Grass
Xyris difformis var. curtissii Curtiss's Yellow-eyed Grass
Xyris difformis var. difformis Flatstem Yellow-eyed Grass, bog yellow-eyed grass
Xyris difformis var. floridana Florida Yellow-eyed Grass
Xyris elliottii Elliott's Yellow-eyed Grass
Xyris fimbriata Giant Yellow-eyed Grass
Xyris jupicai Yellow-eyed Grass
Xyris scabrifolia Roughleaf Yellow-eyed Grass, Scabrous-leaved Xyris, Harper's Yellow-eyed Grass
Xyris scabrifolia Chapman's Yellow-eyed Grass
Xyris serotina acid swamp yellow-eyed grass
Xyris stricta pineland yellow-eyed grass
Xyris torta Slender Yellow-eyed Grass, Mountain Yellow-eyed Grass
Youngia japonica Asiatic Hawksbeard, Youngia, Japanese Crepis, Oriental Hawksbeard
Yucca aloifolia Spanish Dagger
Yucca filamentosa Beargrass, Spoonleaf Yucca, Curlyleaf Yucca, Adam's Needle
Yucca flaccida Weakleaf Yucca, Adam's Needle
Yucca gloriosa Mound-lily Yucca, Spanish Bayonet
Zamia pumila ssp. pumila Florida Coontie
Zanthoxylum americanum Prickly-ash, Toothache Tree, Northern Prickly-ash
Zanthoxylum clava-herculis Toothache Tree, Hercules-club, Sea-ash, Southern Prickly-ash
Zanthoxylum fagara Wild Lime, Lime Prickly-ash, Colima, Una de Gato
Zelkova serrata Japanese Zelkova
Zenobia pulverulenta Zenobia, Honeycups
Zephyranthes atamasca var. atamasca Common Atamasco Lily, Rain-lily, Easter Lily, Naked Lily
Zephyranthes atamasca var. treatiae Rain-lily, Treat's Zephyr-lily
Zephyranthes candida Fall Rain-lily
Zephyranthes simpsonii Florida Atamasco Lily, Red-margined Atamasco Lily
Zigadenus densus Crow-poison, Savanna Camass
Zigadenus elegans ssp. glaucus White Death-camas, White Camass
Zigadenus glaberrimus Large Death Camas, Snakeroot, Sandbog Death Camus, Bog Death Camas
Zigadenus leimanthoides Pinebarrens Death Camas
Zizania aquatica var. aquatica Southern Wild-rice, Indian Rice
Zizaniopsis miliacea Southern Wild-rice, Water-millet, Giant Cutgrass
Zizia aptera Heartleaf Golden Alexanders, Heartleaf Alexanders
Zizia aurea Common Golden Alexanders
Zizia trifoliata Mountain Golden-Alexanders
Zornia bracteata Zornia, Viperina