Ecoregion: Entrenched Valley
Families: 129
Genera: 511
Species: 1150
Total Taxa: 1183
Abutilon theophrasti Medik. - Velvetleaf
Acalypha deamii (Weath.) H. E. Ahles - Deam's Three-Seed-Mercury
Acalypha rhomboidea Raf. - Common Three-Seed-Mercury
Acalypha virginica L. - Virginia Three-Seed-Mercury
Acer negundo L. - Ash-Leaf Maple
Acer negundo var. negundo - Boxelder
Acer nigrum F. Michx. - Black Maple
Acer rubrum L. - Red Maple
Acer rubrum var. rubrum - Red Maple
Acer saccharinum L. - Silver Maple
Acer saccharum Marshall - Sugar Maple
Acer saccharum var. saccharum - Sugar Maple
Achillea millefolium L. - common yarrow
Actaea pachypoda Elliott - White Baneberry
Adiantum pedatum L. - Northern Maidenhair
Aesculus glabra Willd. - Ohio Buckeye
Aesculus glabra var. glabra - Ohio Buckeye
Aesculus × marylandica Booth ex Dippel - Maryland Chestnut
Agalinis purpurea (L.) Pennell - Purple False Foxglove
Agalinis tenuifolia (Vahl) Raf. - Slender-Leaf False Foxglove
Agalinis tenuifolia var. macrophylla (Benth.) S. F. Blake - Slender-Leaf False Foxglove
Agastache nepetoides (L.) Kuntze - Yellow Giant-Hyssop
Ageratina altissima (L.) R. M. King & H. Rob. - White Snakeroot
Ageratina altissima var. altissima - White Snakeroot
Agrimonia parviflora Aiton - Harvestlice
Agrimonia pubescens Wallr. - Soft Grooveburr
Agrimonia rostellata Wallr. - Beaked Grooveburr
Agrostemma githago L. - Common Corncockle
Agrostis elliottiana Schult. - Elliott's Bent
Agrostis gigantea Roth - Black Bent
Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. - Winter Bent
Agrostis perennans (Walter) Tuck. - Upland Bent
Agrostis stolonifera L. - Spreading Bent
Alcea rosea L. - Hollyhock
Alisma subcordatum Raf. - American Water-Plantain
Allium canadense L. - Meadow Garlic
Allium canadense var. canadense - Meadow Garlic
Allium cernuum Roth - Nodding Onion
Allium sativum L. - Cultivated Garlic
Allium tricoccum Aiton - Wideleaf Wild Leek
Allium tricoccum var. burdickii Hanes - Narrowleaf Wild Leek
Allium tricoccum var. tricoccum - Wideleaf Wild Leek
Alopecurus aequalis Sobol. - Short-Awn Meadow-Foxtail
Alopecurus aequalis var. aequalis - Short-Awn Meadow-Foxtail
Alopecurus carolinianus Walter - Tufted Meadow-Foxtail
Alyssum alyssoides (L.) L. - Pale Madwort
Amaranthus albus L. - Tumbleweed
Amaranthus blitoides S. Watson - Mat Amaranth
Amaranthus hybridus L. - Smooth Amaranth
Amaranthus spinosus L. - Spiny Amaranth
Amaranthus tuberculatus (Moq.) J. D. Sauer - Rough-Fruit Amaranth
Ambrosia artemisiifolia L. - Annual Ragweed
Ambrosia trifida L. - Great Ragweed
Amelanchier arborea (Michx. f.) Fernald - Intermediate Service-Berry
Amelanchier laevis Wiegand - Allegheny Service-Berry
Amelanchier spicata (Lam.) K. Koch - Running Service-Berry
Amorpha canescens Pursh - Leadplant
Amorpha fruticosa L. - False Indigo-Bush
Amphicarpaea bracteata (L.) Fernald - American Hog-Peanut
Andropogon gerardi Vitman - Big Bluestem
Andropogon virginicus L. - Chalky Bluestem
Andropogon virginicus var. virginicus - Chalky Bluestem
Androsace occidentalis Pursh - Western Rock-Jasmine
Anemone acutiloba (DC.) G. Lawson - Sharp-Lobe Hepatica
Anemone americana (DC.) H. Hara - Round-Lobe Hepatica
Anemone canadensis L. - Canadian False Thimbleweed
Anemone quinquefolia L. - Nightcaps
Anemone quinquefolia var. quinquefolia - Nightcaps
Anemone virginiana L. - Tall Thimbleweed
Anemone virginiana var. virginiana - Tall Thimbleweed
Angelica atropurpurea L. - Purple-Stem Angelica
Antennaria neglecta Greene - Field Pussytoes
Antennaria parlinii Fernald - Parlin's Pussytoes
Antennaria parlinii subsp. fallax (Greene) R. J. Bayer & Stebbins - Parlin's Pussytoes
Antennaria parlinii subsp. parlinii - Parlin's Pussytoes
Anthemis cotula L. - Stinking Chamomile
Anthoxanthum hirtum (Schrank) Y. Schouten & Veldkamp - Northern Sweet Vernal Grass
Apios americana Medik. - Groundnut
Aplectrum hyemale (Muhl. ex Willd.) Nutt. - Adam-and-Eve
Apocynum androsaemifolium L. - Spreading Dogbane
Apocynum cannabinum L. - Indian-Hemp
Apocynum × floribundum Greene - Hybrid Dogbane
Aquilegia canadensis L. - Red Columbine
Arabidopsis thaliana (L.) Heynh. - Thalecress
Arabis pycnocarpa M. Hopkins - Hairy Eared Rockcress
Arabis pycnocarpa var. adpressipilis M. Hopkins - Hairy Eared Rockcress
Aralia nudicaulis L. - Wild Sarsaparilla
Aralia racemosa L. - American Spikenard
Arctium minus (Hill) Bernh. - Lesser Burrdock
Arenaria serpyllifolia L. - Thyme-Leaf Sandwort
Arenaria serpyllifolia var. serpyllifolia - Thyme-Leaf Sandwort
Arisaema dracontium (L.) Schott - Greendragon
Arisaema triphyllum (L.) Schott - Jack-in-the-Pulpit
Aristida longespica Poir. - Red Three-Awn
Aristida longespica var. longespica - Slim-Spike Three-Awn
Aristida oligantha Michx. - Prairie Three-Awn
Arnoglossum atriplicifolium (L.) H. Rob. - Pale Indian-Plantain
Arnoglossum plantagineum Raf. - Groove-Stem Indian-Plantain
Arnoglossum reniforme (Hook.) H. Rob. - Great Indian-Plantain
Aronia melanocarpa (Michx.) Elliott - Black Chokeberry
Artemisia ludoviciana Nutt. - White Sagebrush
Artemisia ludoviciana subsp. ludoviciana - White Sagebrush
Asarum canadense L. - Canadian Wild Ginger
Asclepias amplexicaulis Sm. - Clasping Milkweed
Asclepias exaltata L. - Poke Milkweed
Asclepias hirtella (Pennell) Woodson - Green Milkweed
Asclepias incarnata L. - Swamp Milkweed
Asclepias incarnata subsp. incarnata - Swamp Milkweed
Asclepias sullivantii Engelm. ex A. Gray - Prairie Milkweed
Asclepias syriaca L. - Common Milkweed
Asclepias tuberosa L. - Butterfly Milkweed
Asclepias tuberosa subsp. interior Woodson - Butterfly Milkweed
Asclepias tuberosa subsp. tuberosa - Butterfly Milkweed
Asclepias verticillata L. - Whorled Milkweed
Asclepias viridiflora Raf. - Green Comet Milkweed
Asimina triloba (L.) Dunal - Common Pawpaw
Asparagus officinalis L. - Asparagus
Asplenium pinnatifidum Nutt. - Lobed Spleenwort
Asplenium platyneuron (L.) Britton, Sterns & Poggenb. - Ebony Spleenwort
Asplenium rhizophyllum L. - Walking Fern
Asplenium trichomanes L. - Maidenhair Spleenwort
Asplenium trichomanes subsp. trichomanes L. - Maidenhair Spleenwort
Astragalus tennesseensis A. Gray ex Chapm. - Tennessee Milk-Vetch
Athyrium filix-femina (L.) Roth - Lady Fern
Athyrium filix-femina var. angustum (Willd.) G. Lawson - Northern Lady Fern
Atriplex patula L. - Halberd-Leaf Orache
Atriplex prostrata Boucher ex DC. - Hastate Orache
Aureolaria flava (L.) Farw. - Smooth Yellow False Foxglove
Aureolaria flava var. macrantha Pennell - Smooth Yellow False Foxglove
Avena sativa L. - Oat
Baptisia alba R.Br. - White Wild Indigo
Baptisia alba var. macrophylla (Larisey) Isely - Largeleaf Wild Indigo
Barbarea verna (Mill.) Asch. - Early Yellow-Rocket
Barbarea vulgaris W. T. Aiton - Garden Yellow-Rocket
Bartonia virginica (L.) Britton, Sterns & Poggenb. - Yellow Screwstem
Belamcanda chinensis (L.) Redouté - Blackberry-Lily
Besseya bullii (Eaton) Rydb. - Bull's Coraldrops
Bidens aristosa (Michx.) Britton - Bearded Beggarticks
Bidens bipinnata L. - Spanish-Needles
Bidens cernua L. - Nodding Burr-Marigold
Bidens connata Muhl. ex Willd. - Purplestem Beggarticks
Bidens discoidea (Torr. & A. Gray) Britton - Small Beggarticks
Bidens frondosa L. - Devil's-Pitchfork
Bidens trichosperma (Michx.) Britton - Crowned Beggarticks
Bidens vulgata Greene - Tall Beggarticks
Blephilia ciliata (L.) Benth. - Downy Pagoda-Plant
Blephilia hirsuta (Pursh) Benth. - Hairy Pagoda-Plant
Blephilia hirsuta var. hirsuta - Hairy Pagoda-Plant
Boehmeria cylindrica (L.) Sw. - Small-Spike False Nettle
Boltonia asteroides (L.) L'Hér. - White Doll's Daisy
Boltonia asteroides var. recognita (Fernald & Griscom) Cronquist - White Doll's Daisy
Borodinia dentata (Raf.) P. J. Alexander & Windham - Short's False Rockcress
Borodinia laevigata (Muhl. ex Willd.) P. J. Alexander & Windham - Smooth False Rockcress
Botrypus virginianus (L.) Michx. - Rattlesnake Fern
Bouteloua curtipendula (Michx.) Torr. - Side-Oats Grama
Bouteloua curtipendula var. curtipendula - Side-Oats Grama
Brachyelytrum erectum P. Beauv. - Bearded Shorthusk
Brassica nigra (L.) W. D. J. Koch - Black Mustard
Brickellia eupatorioides (L.) Shinners - False Boneset
Brickellia eupatorioides var. eupatorioides - False Boneset
Bromus commutatus Schrad. - Meadow Brome
Bromus inermis Leyss. - Smooth Brome
Bromus japonicus Thunb. - Japanese Brome
Bromus latiglumis (Scribn. ex Shear) Hitchc. - Early-Leaf Brome
Bromus nottowayanus Fernald - Nottoway Valley Brome
Bromus pubescens Muhl. ex Willd. - Hairy Woodland Brome
Bromus secalinus L. - Cheat
Bromus tectorum L. - Cheat Grass
Buglossoides arvensis (L.) I. M. Johnst. - Corn-Gromwell
Bulbostylis capillaris (L.) Kunth ex C. B. Clarke - Dense-Tuft Hair Sedge
Calamagrostis canadensis (Michx.) P. Beauv. - Bluejoint
Calamagrostis canadensis var. canadensis - Bluejoint
Callitriche heterophylla Pursh - Greater Water-Starwort
Callitriche heterophylla subsp. heterophylla - Twoheaded Water-Starwort
Calopogon tuberosus (L.) Britton, Sterns & Poggenb. - Tuberous Grass-Pink
Calopogon tuberosus var. tuberosus - Tuberous Grass-Pink
Caltha palustris L. - Yellow Marsh-Marigold
Calystegia silvatica (Kit.) Griseb. - Short-Stalk False Bindweed
Calystegia silvatica subsp. fraterniflora (Mack. & Bush) Brummitt - Short-Stalk False Bindweed
Calystegia spithamaea (L.) Pursh - Low False Bindweed
Calystegia spithamaea subsp. spithamaea - Low False Bindweed
Camassia scilloides (Raf.) Cory - Atlantic Camas
Camelina microcarpa Andrz. ex DC. - Little-Pod False Flax
Campanula aparinoides Pursh - Marsh Bellflower
Campanulastrum americanum (L.) Small - American-Bellflower
Campsis radicans (L.) Seem. ex Bureau - Trumpet-Creeper
Cannabis sativa L. - Hemp
Capsella bursa-pastoris (L.) Medik. - Shepherd's-Purse
Cardamine bulbosa (Schreb. ex Muhl.) Britton, Sterns & Poggenb. - Bulbous Bittercress
Cardamine concatenata (Michx.) O. Schwarz - Cut-Leaf Toothwort
Cardamine douglassii Britton - Limestone Bittercress
Cardamine parviflora L. - Sand Bittercress
Cardamine pensylvanica Muhl. ex Willd. - Quaker Bittercress
Carex aggregata Mack. - Glomerate Sedge
Carex albicans Willd. ex Spreng. - White-Tinge Sedge
Carex albicans var. albicans - White-Tinge Sedge
Carex albursina E. Sheld. - White Bear Sedge
Carex amphibola Steud. - Eastern Narrow-Leaf Sedge
Carex annectens (E. P. Bicknell) E. P. Bicknell - Yellow-Fruit Sedge
Carex aurea Nutt. - Golden-Fruit Sedge
Carex blanda Dewey - Eastern Woodland Sedge
Carex brevior (Dewey) Mack. ex Lunell - Short-Beak Sedge
Carex bromoides Schkuhr ex Willd. - Brome-Like Sedge
Carex bromoides subsp. bromoides - Brome-Like Sedge
Carex buxbaumii Wahlenb. - Brown Bog Sedge
Carex careyana Torr. ex Dewey - Carey's Sedge
Carex cephaloidea (Dewey) Dewey - Thin-Leaf Sedge
Carex cephalophora Muhl. ex Willd. - Oval-Headed Sedge
Carex communis L. H. Bailey - Fibrous-Root Sedge
Carex comosa Boott - Bearded Sedge
Carex conjuncta Boott - Soft Fox Sedge
Carex crinita Lam. - Fringed Sedge
Carex crinita var. crinita - Fringed Sedge
Carex cristatella Britton - Crested Sedge
Carex davisii Schwein. & Torr. - Davis' Sedge
Carex digitalis Willd. - Slender Woodland Sedge
Carex digitalis var. digitalis - Slender Woodland Sedge
Carex emoryi Dewey - Emory's Sedge
Carex festucacea Schkuhr ex Willd. - Fescue Sedge
Carex frankii Kunth - Frank's Sedge
Carex gracilescens Steud. - Slender Loose-Flower Sedge
Carex gracillima Schwein. - Graceful Sedge
Carex granularis Muhl. ex Willd. - Limestone-Meadow Sedge
Carex gravida L. H. Bailey - Heavy Sedge
Carex grayi J. Carey - Gray's Sedge
Carex grisea Wahlenb. - Inflated Narrow-Leaf Sedge
Carex hirsutella Mack. - Fuzzy-Wuzzy Sedge
Carex hirtifolia Mack. - Pubescent Sedge
Carex hitchcockiana Dewey - Hitchcock's Sedge
Carex hyalinolepis Steud. - Shoreline Sedge
Carex hystericina Muhl. ex Willd. - Porcupine Sedge
Carex inops L. H. Bailey - Long-Stolon Sedge
Carex inops subsp. heliophila (Mack.) Crins - Sun Sedge
Carex interior L. H. Bailey - Inland Sedge
Carex intumescens Rudge - Greater Bladder Sedge
Carex jamesii Schwein. - James' Sedge
Carex lacustris Willd. - Lakebank Sedge
Carex laevivaginata (Kük.) Mack. - Smooth-Sheath Sedge
Carex laxiculmis Schwein. - Spreading Sedge
Carex laxiculmis var. copulata (L. H. Bailey) Fernald - Spreading Sedge
Carex laxiflora Lam. - Broad Loose-Flower Sedge
Carex leavenworthii Dewey - Leavenworth's Sedge
Carex leptalea Wahlenb. - Bristly-Stalk Sedge
Carex leptalea subsp. harperi (Fernald) W. Stone - Bristly-Stalk Sedge
Carex leptalea subsp. leptalea - Bristlystalked Sedge
Carex lupulina Muhl. ex Willd. - Hop Sedge
Carex lurida Wahlenb. - Sallow Sedge
Carex meadii Dewey - Mead's Sedge
Carex mesochorea Mack. - Midland Sedge
Carex missouriensis P. Rothr. & Reznicek - Missouri Sedge
Carex molesta Mack. ex Bright - Troublesome Sedge
Carex muehlenbergii Schkuhr ex Willd. - Muhlenberg's Sedge
Carex muehlenbergii var. muehlenbergii - Muhlenberg's Sedge
Carex muskingumensis Schwein. - Muskingum Sedge
Carex normalis Mack. - Greater Straw Sedge
Carex oligocarpa Schkuhr ex Willd. - Richwoods Sedge
Carex pedunculata Muhl. ex Willd. - Long-Stalk Sedge
Carex pellita Muhl. ex Willd. - Woolly Sedge
Carex pensylvanica Lam. - Pennsylvania Sedge
Carex picta Steud. - Boott's Sedge
Carex plantaginea Lam. - Plantain-Leaf Sedge
Carex prairea Dewey - Prairie Sedge
Carex prasina Wahlenb. - Drooping Sedge
Carex radiata (Wahlenb.) Small - Eastern Star Sedge
Carex rosea Schkuhr ex Willd. - Rosy Sedge
Carex scoparia Schkuhr ex Willd. - Pointed Broom Sedge
Carex shortiana Dewey - Short's Sedge
Carex sparganioides Muhl. ex Willd. - Burr-Reed Sedge
Carex squarrosa L. - Squarrose Sedge
Carex sterilis Willd. - Dioecious Sedge
Carex stipata Muhl. ex Willd. - Stalk-Grain Sedge
Carex stipata var. maxima Chapm. ex Boott - Stalk-Grain Sedge
Carex stipata var. stipata - Stalk-Grain Sedge
Carex stricta Lam. - Uptight Sedge
Carex suberecta (Olney) Britton - Prairie Straw Sedge
Carex swanii (Fernald) Mack. - Swan's Sedge
Carex tetanica Schkuhr - Rigid Sedge
Carex tonsa (Fernald) E. P. Bicknell - Shaved Sedge
Carex tonsa var. tonsa - Shaved Sedge
Carex torta Boott - Twisted Sedge
Carex tribuloides Wahlenb. - Blunt Broom Sedge
Carex tribuloides var. sangamonensis Clokey - Blunt Broom Sedge
Carex tribuloides var. tribuloides - Blunt Broom Sedge
Carex trichocarpa Muhl. ex Willd. - Hairy-Fruit Sedge
Carex umbellata Schkuhr ex Willd. - Parasol Sedge
Carex virescens Muhl. ex Willd. - Ribbed Sedge
Carex vulpinoidea Michx. - Common Fox Sedge
Carex willdenowii Schkuhr ex Willd. - Willdenow's Sedge
Carex woodii Dewey - Pretty Sedge
Carpinus caroliniana Walter - American Hornbeam
Carpinus caroliniana subsp. virginiana (Marshall) Furlow - American Hornbeam
Carya cordiformis (Wangenh.) K. Koch - Bitter-Nut Hickory
Carya glabra (Mill.) Sweet - Pignut Hickory
Carya laciniosa (Michx. f.) G. Don - Shell-Bark Hickory
Carya ovata (Mill.) K. Koch - Shag-Bark Hickory
Castilleja coccinea (L.) Spreng. - Scarlet Indian-Paintbrush
Catalpa speciosa (Warder) Warder ex Engelm. - Northern Catalpa
Caulophyllum thalictroides (L.) Michx. - Blue Cohosh
Ceanothus americanus L. - New Jersey-Tea
Celastrus scandens L. - American Bittersweet
Celtis occidentalis L. - Common Hackberry
Cenchrus longispinus (Hack.) Fernald - Innocent-Weed
Cephalanthus occidentalis L. - Common Buttonbush
Cerastium fontanum Baumg. - Common Mouse-Ear Chickweed
Cerastium fontanum subsp. vulgare (Hartm.) Greuter & Burdet - Common Mouse-Ear Chickweed
Cerastium nutans Raf. - Nodding Mouse-Ear Chickweed
Cerastium nutans var. nutans - Nodding Mouse-Ear Chickweed
Ceratocephala testiculata (Crantz) Besser - Curve-Seed-Butterwort
Ceratophyllum demersum L. - Coon's-Tail
Cercis canadensis L. - Redbud
Cercis canadensis var. canadensis - Eastern Redbud
Chaenorhinum minus (L.) Lange - Dwarf-Snapdragon
Chaerophyllum procumbens (L.) Crantz - Spreading Chervil
Chaerophyllum procumbens var. procumbens - Spreading Chervil
Chamaecrista fasciculata (Michx.) Greene - Sleepingplant
Chamaecrista fasciculata var. fasciculata - Showy Partridge-Pea
Chamaecrista nictitans (L.) Moench - Partridge-Pea
Chamaecrista nictitans var. nictitans - Sensitive Partridge-Pea
Chelidonium majus L. - Greater Celandine
Chelone glabra L. - White Turtlehead
Chelone obliqua L. - Red Turtlehead
Chelone obliqua var. speciosa Pennell & Wherry - Red Turtlehead
Chenopodiastrum murale (L.) S. Fuentes-B, Uotila & Borsch - Nettle-Leaf Mock Goosefoot
Chenopodium album L. - Lamb's-Quarters
Chenopodium berlandieri Moq. - Pit-Seed Goosefoot
Chenopodium berlandieri var. zschackei (Murr) Murr ex Gräben. - Zschack's Goosefoot
Chenopodium glaucum L. - Oak-Leaf Eurasian-Goosefoot
Chenopodium glaucum var. glaucum - Oak-Leaf Eurasian-Goosefoot
Chenopodium standleyanum Aellen - Standley's Goosefoot
Chimaphila maculata (L.) Pursh - Striped Prince's-Pine
Cicuta bulbifera L. - Bulblet-Bearing Water-Hemlock
Cicuta maculata L. - Spotted Water-Hemlock
Cicuta maculata var. bolanderi (S. Watson) G. A. Mulligan - Spotted Water-Hemlock
Cinna arundinacea L. - Sweet Wood-Reed
Circaea alpina L. - Small Enchanter's-Nightshade
Circaea alpina subsp. alpina - Small Enchanter's-Nightshade
Circaea canadensis (L.) Hill - Broad-Leaf Enchanter's-Nightshade
Cirsium altissimum (L.) Spreng. - Tall Thistle
Cirsium discolor (Muhl. ex Willd.) Spreng. - Field Thistle
Cirsium muticum Michx. - Swamp Thistle
Cirsium pumilum Spreng. - Pasture Thistle
Cirsium pumilum var. hillii (Canby) B. Boivin - Hill's Thistle
Cirsium vulgare (Savi) Ten. - Bull Thistle
Claytonia virginica L. - Virginia Springbeauty
Clematis pitcheri Torr. & A. Gray - Bluebill
Clematis pitcheri var. pitcheri - Bluebill
Clematis viorna L. - Vasevine
Clematis virginiana L. - Devil's-Darning-Needles
Coeloglossum viride (L.) Hartm. - Long-Bract Frog Orchid
Coeloglossum viride var. virescens (Muhl. ex Willd.) Luer - Long-Bract Frog Orchid
Collinsia verna Nutt. - Spring Blue-Eyed Mary
Collinsonia canadensis L. - Richweed
Comandra umbellata (L.) Nutt. - Bastard-Toadflax
Comandra umbellata subsp. umbellata - Bastard-Toadflax
Conium maculatum L. - Poison-Hemlock
Conoclinium coelestinum (L.) DC. - Blue Mistflower
Conopholis americana (L.) Wallr. - American cancer-root
Consolida ajacis (L.) Schur - Doubtful Knight's-Spur
Convolvulus arvensis L. - Field Bindweed
Conyza canadensis (L.) Cronquist - Canadian Horseweed
Conyza ramosissima Cronquist - Dwarf Horseweed
Corallorhiza odontorhiza (Willd.) Poir. - Autumn Coralroot
Corallorhiza wisteriana Conrad - Spring Coralroot
Coreopsis tripteris L. - Tall Tickseed
Cornus alternifolia L. f. - Alternate-Leaf Dogwood
Cornus drummondii C. A. Mey. - Rough-Leaf Dogwood
Cornus florida L. - Flowering Dogwood
Cornus obliqua Raf. - Pale Dogwood
Cornus racemosa Lam. - Gray Dogwood
Cornus rugosa Lam. - Round-Leaf Dogwood
Corydalis flavula (Raf.) DC. - Yellow Fumewort
Corylus americana Walter - American Hazelnut
Crataegus biltmoreana Beadle - Biltmore Hawthorn
Crataegus calpodendron (Ehrh.) Medik. - Pear Hawthorn
Crataegus chrysocarpa Ashe - Fire-Berry Hawthorn
Crataegus chrysocarpa var. chrysocarpa - Fire-Berry Hawthorn
Crataegus coccinea L. - Scarlet Hawthorn
Crataegus crus-galli L. - Cock-Spur Hawthorn
Crataegus holmesiana Ashe - Holmes' Hawthorn
Crataegus mollis (Torr. & A. Gray) Scheele - Downy Hawthorn
Crataegus pruinosa (H. L. Wendl.) K. Koch - Waxy-Fruit Hawthorn
Crataegus punctata Jacq. - Dotted Hawthorn
Crocanthemum bicknellii (Fernald) Janch. - Hoary Frostweed
Crocanthemum canadense (L.) Britton - Long-Branch Frostweed
Croton monanthogynus Michx. - Prairie-Tea
Cryptotaenia canadensis (L.) DC. - Canadian Honewort
Cuphea viscosissima Jacq. - Blue Waxweed
Cuscuta campestris Yunck. - Field Dodder
Cuscuta cephalanthi Engelm. - Buttonbush Dodder
Cuscuta coryli Engelm. - Hazel Dodder
Cuscuta glomerata Choisy - Rope Dodder
Cuscuta gronovii Willd. ex Schult. - Scaldweed
Cuscuta gronovii var. gronovii - Scaldweed
Cyclachaena xanthiifolia (Nutt.) Fresen. - Carelessweed
Cycloloma atriplicifolium (Spreng.) J. M. Coult. - Winged-Pigweed
Cynanchum laeve (Michx.) Pers. - Honeyvine
Cynoglossum officinale L. - Hound's-Tongue
Cynoglossum virginianum L. - Wild Comfrey
Cynoglossum virginianum var. virginianum - Southern Wild Comfrey
Cyperus bipartitus Torr. - Shining Flat Sedge
Cyperus esculentus L. - Chufa
Cyperus lupulinus (Spreng.) Marcks - Great Plains Flat Sedge
Cyperus lupulinus subsp. lupulinus - Great Plains Flat Sedge
Cyperus lupulinus subsp. macilentus (Fernald) Marcks - Great Plains Flat Sedge
Cyperus odoratus L. - Rusty Flat Sedge
Cyperus squarrosus L. - Awned Flat Sedge
Cyperus strigosus L. - Straw-Color Flat Sedge
Cyperus × mesochorus Geise - Hybrid Flat Sedge
Cypripedium candidum Muhl. ex Willd. - Small White Lady's-Slipper
Cypripedium parviflorum Salisb. - Yellow Lady's-Slipper
Cypripedium parviflorum var. makasin (Farw.) Sheviak - Yellow Lady's-Slipper
Cypripedium parviflorum var. pubescens (Willd.) O. W. Knight - Greater Yellow Lady's-Slipper
Cypripedium reginae Walter - Showy Lady's-Slipper
Cystopteris bulbifera (L.) Bernh. - Bulblet Bladder Fern
Cystopteris protrusa (Weath.) Blasdell - Lowland Bladder Fern
Cystopteris tenuis (Michx.) Desv. - Upland Brittle Bladder Fern
Dactylis glomerata L. - Orchard Grass
Dalea candida Michx. ex Willd. - White Prairie-Clover
Dalea candida var. candida - White Prairie Clover
Dalea purpurea Vent. - Violet Prairie-Clover
Danthonia spicata (L.) P. Beauv. ex Roem. & Schult. - Poverty Wild Oat Grass
Dasistoma macrophylla (Nutt.) Raf. - Mullein-Foxglove
Datura stramonium L. - Jimsonweed
Daucus carota L. - Queen Anne's-Lace
Decodon verticillatus (L.) Elliott - Swamp-Loosestrife
Delphinium tricorne Michx. - Dwarf Larkspur
Dennstaedtia punctilobula (Michx.) T. Moore - Hay-Scented Fern
Deparia acrostichoides (Sw.) M. Kato - Silvery-Spleenwort
Descurainia pinnata (Walter) Britton - Western Tansy-Mustard
Descurainia pinnata subsp. brachycarpa (Richardson) Detling - Western Tansy-Mustard
Desmodium canadense (L.) DC. - Showy Tick-Trefoil
Desmodium canescens (L.) DC. - Hoary Tick-Trefoil
Desmodium cuspidatum (Muhl. ex Willd.) Loudon - Large-Bract Tick-Trefoil
Desmodium cuspidatum var. cuspidatum - Large-Bract Tick-Trefoil
Desmodium cuspidatum var. longifolium (Torr. & A. Gray) B. G. Schub. - Large-Bract Tick-Trefoil
Desmodium glabellum (Michx.) DC. - Dillenius' Tick-Trefoil
Desmodium illinoense A. Gray - Illinois Tick-Trefoil
Desmodium marilandicum (L.) DC. - Small-Leaf Tick-Trefoil
Desmodium paniculatum (L.) DC. - Panicled-Leaf Tick-Trefoil
Desmodium paniculatum var. paniculatum - Panicled-Leaf Tick-Trefoil
Desmodium perplexum B. G. Schub. - Perplexed Tick-Trefoil
Desmodium rotundifolium DC. - Prostrate Tick-Trefoil
Dianthus armeria L. - Deptford Pink
Dianthus armeria subsp. armeria - Deptford Pink
Diarrhena americana P. Beauv. - American Beakgrain
Diarrhena obovata (Gleason) Brandenburg - Hairy Beakgrain
Dicentra canadensis (Goldie) Walp. - Squirrel-Corn
Dicentra cucullaria (L.) Bernh. - Dutchman's-Breeches
Dichanthelium acuminatum (Sw.) Gould & C. A. Clark - Tapered Witch Grass
Dichanthelium acuminatum subsp. fasciculatum (Torr.) Freckmann & Lelong - Western Witch Grass
Dichanthelium boscii (Poir.) Gould & C. A. Clark - Bosc's Witch Grass
Dichanthelium clandestinum (L.) Gould - Deer-Tongue Witch Grass
Dichanthelium dichotomum (L.) Gould - Cypress Witch Grass
Dichanthelium dichotomum subsp. dichotomum - Cypress Witch Grass
Dichanthelium latifolium (L.) Harvill - Broad-Leaf Witch Grass
Dichanthelium linearifolium (Scribn. ex Nash) Gould - Slim-Leaf Witch Grass
Dichanthelium oligosanthes (Schult.) Gould - Heller's Witch Grass
Dichanthelium oligosanthes subsp. scribnerianum (Nash) Freckmann & Lelong - Scribner's rosette grass
Diervilla lonicera Mill. - Northern Bush-Honeysuckle
Digitaria cognata (Schult.) Pilg. - Carolina Crab Grass
Digitaria ischaemum (Schreb.) Schreb. ex Muhl. - Smooth Crab Grass
Digitaria sanguinalis (L.) Scop. - Hairy Crab Grass
Diodia teres Walter - Poor Joe
Dioscorea villosa L. - Wild Yam
Diospyros virginiana L. - Common Persimmon
Dirca palustris L. - Eastern Leatherwood
Draba brachycarpa Nutt. ex Torr. & A. Gray - Smooth Cross-Hair Cress
Draba reptans (Lam.) Fernald - Carolina Draba
Draba verna L. - Spring Whitlow-Grass
Drymocallis arguta (Pursh) Rydb. - Tall Woodbeauty
Dryopteris carthusiana (Vill.) H. P. Fuchs - Spinulose Wood Fern
Dryopteris goldiana (Hook. ex Goldie) A. Gray - Goldie's Wood Fern
Dryopteris intermedia (Muhl. ex Willd.) A. Gray - Evergreen Wood Fern
Dryopteris marginalis (L.) A. Gray - Marginal Wood Fern
Dulichium arundinaceum (L.) Britton - Three-Way Sedge
Dulichium arundinaceum var. arundinaceum - Three-Way Sedge
Dysphania ambrosioides (L.) Mosyakin & Clemants - Mexican tea
Dysphania botrys (L.) Mosyakin & Clemants - Jerusalem-Oak
Dyssodia papposa (Vent.) Hitchc. - Fetid-Marigold
Echinacea purpurea (L.) Moench - Eastern Purple-Coneflower
Echinochloa crus-galli (L.) P. Beauv. - Large Barnyard Grass
Echinochloa muricata (P. Beauv.) Fernald - Rough Barnyard Grass
Echinochloa muricata var. muricata - Rough Barnyard Grass
Echinocystis lobata (Michx.) Torr. & A. Gray - Wild Cucumber
Eclipta prostrata (L.) L. - False Daisy
Eleocharis acicularis (L.) Roem. & Schult. - Needle Spike-Rush
Eleocharis elliptica Kunth - Elliptic Spike-Rush
Eleocharis erythropoda Steud. - Bald Spike-Rush
Eleocharis obtusa (Willd.) Schult. - Blunt Spike-Rush
Elephantopus carolinianus Raeusch. - Carolina Elephant's-Foot
Eleusine indica (L.) Gaertn. - Indian Goose Grass
Ellisia nyctelea (L.) L. - Aunt Lucy
Elodea nuttallii (Planch.) H. St. John - Western Waterweed
Elymus canadensis L. - Nodding Wild Rye
Elymus hystrix L. - Eastern Bottle-Brush Grass
Elymus macgregorii R. E. Brooks & J. J. N. Campb. - Macgregor's Wild Rye
Elymus repens (L.) Gould - Quackgrass
Elymus riparius Wiegand - River-Bank Wild Rye
Elymus villosus Muhl. ex Willd. - Hairy Wild Rye
Elymus virginicus L. - Virginia Wild Rye
Elymus virginicus var. virginicus - Virginia Wild Rye
Endodeca serpentaria (L.) Raf. - Virginia-Snakeroot
Enemion biternatum Raf. - Eastern False Rue-Anemone
Epifagus virginiana (L.) W. P. C. Barton - Beechdrops
Epilobium coloratum Biehler - Purple-Leaf Willowherb
Epilobium leptophyllum Raf. - Bog Willowherb
Epilobium strictum Muhl. ex Spreng. - Downy Willowherb
Equisetum arvense L. - Field Horsetail
Equisetum arvense subsp. arvense - Field Horsetail
Equisetum fluviatile L. - Water Horsetail
Equisetum hyemale L. - Tall Scouring-Rush
Equisetum hyemale var. affine (Engelm.) A. A. Eaton - Tall Scouring-Rush
Equisetum laevigatum A. Braun - Smooth Scouring-Rush
Eragrostis cilianensis (All.) Vignolo ex Janch. - Stink Grass
Eragrostis frankii C. A. Mey. ex Steud. - Sandbar Love Grass
Eragrostis hypnoides (Lam.) Britton, Sterns & Poggenb. - Teal Love Grass
Eragrostis pectinacea (Michx.) Nees ex Steud. - Purple Love Grass
Eragrostis pectinacea var. pectinacea (Michx.) Steud. - Tufted Love Grass
Eragrostis spectabilis (Pursh) Steud. - Petticoat-Climber
Erechtites hieraciifolius (L.) Raf. ex DC. - American Burnweed
Erechtites hieraciifolius var. hieraciifolius - American Burnweed
Erigenia bulbosa (Michx.) Nutt. - Harbinger-of-Spring
Erigeron annuus (L.) Pers. - Eastern Daisy Fleabane
Erigeron philadelphicus L. - Philadelphia Fleabane
Erigeron philadelphicus var. philadelphicus - Philadelphia Fleabane
Erigeron pulchellus Michx. - Robin's-Plantain
Erigeron pulchellus var. pulchellus - Robin's-Plantain
Erigeron strigosus Muhl. ex Willd. - Prairie Fleabane
Erigeron strigosus var. strigosus - Prairie Fleabane
Eriophorum angustifolium Honck. - Tall Cotton-Grass
Eriophorum angustifolium subsp. angustifolium - Tall Cotton-Grass
Eryngium yuccifolium Michx. - Button Eryngo
Eryngium yuccifolium var. yuccifolium - Button Eryngo
Erysimum capitatum (Douglas ex Hook.) Greene - Sand-Dune Wallflower
Erysimum repandum L. - Spreading Wallflower
Erythronium albidum Nutt. - Small White Fawn-Lily
Erythronium americanum Ker Gawl. - American Trout-Lily
Erythronium americanum subsp. americanum - American Trout-Lily
Euonymus alatus (Thunb.) Siebold - Winged Spindletree
Euonymus atropurpureus Jacq. - Eastern Wahoo
Euonymus atropurpureus var. atropurpureus - Eastern Wahoo
Euonymus europaeus L. - European Spindletree
Euonymus obovatus Nutt. - Running Strawberry-Bush
Eupatorium altissimum L. - Tall Thoroughwort
Eupatorium perfoliatum L. - Common Boneset
Eupatorium serotinum Michx. - Late-Flowering Thoroughwort
Eupatorium sessilifolium L. - Upland Boneset
Euphorbia commutata Engelm. ex A. Gray - Tinted Woodland Spurge
Euphorbia corollata L. - Flowering Spurge
Euphorbia cyathophora Murray - Fire-on-the-Mountain
Euphorbia cyparissias L. - Cypress Spurge
Euphorbia davidii Subils - David's Spurge
Euphorbia dentata Michx. - Toothed Spurge
Euphorbia humistrata Engelm. ex A. Gray - Spreading Sandmat
Euphorbia maculata L. - Spotted Sandmat
Euphorbia nutans Lag. - Eyebane
Euphorbia spathulata Lam. - Warty Spurge
Euphorbia virgata Waldst. & Kit. - Wolf's-Milk
Eurybia furcata (E. S. Burgess) G. L. Nesom - Forked Wood-Aster
Euthamia graminifolia (L.) Nutt. - flat-top goldentop
Eutrochium maculatum (L.) E. E. Lamont - Spotted Trumpetweed
Eutrochium maculatum var. maculatum - Spotted Joe-Pye-Weed
Eutrochium purpureum (L.) E. E. Lamont - Sweet-Scented Joe-Pye-Weed
Eutrochium purpureum var. purpureum - Sweet-Scented Joe-Pye-Weed
Fagus grandifolia Ehrh. - American Beech
Fallopia convolvulus (L.) Á. Löve - Black-Bindweed
Fallopia scandens (L.) Holub - Climbing Black-Bindweed
Festuca filiformis Pourr. - Fine-Leaf Sheep Fescue
Festuca subverticillata (Pers.) Alexeev - Nodding Fescue
Filipendula rubra (Hill) B. L. Rob. - Queen-of-the-Prairie
Floerkea proserpinacoides Willd. - False Mermaidweed
Fragaria vesca L. - Woodland Strawberry
Fragaria vesca subsp. americana (Porter) Staudt - Woodland Strawberry
Fragaria virginiana Mill. - Virginia Strawberry
Fragaria virginiana subsp. grayana (E. Vilm. ex J. Gay) Staudt - Virginia strawberry
Fragaria virginiana subsp. virginiana - Virginia strawberry
Frasera caroliniensis Walter - American-Columbo
Fraxinus americana L. - White Ash
Fraxinus nigra Marshall - Black Ash
Fraxinus pennsylvanica Marshall - Green Ash
Fraxinus quadrangulata Michx. - Blue Ash
Fraxinus smallii Britton - Blue Ash
Froelichia floridana (Nutt.) Moq. - Plains Snake-Cotton
Froelichia gracilis (Hook.) Moq. - Slender Snake-Cotton
Fumaria officinalis L. - Drug Fumitory
Galearis spectabilis (L.) Raf. - Showy Orchid
Galium aparine L. - Sticky-Willy
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