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1737 Plants Found

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Ordered by common name.

Scientific Name	Common Name	†	Map‡
Crataegus ovata Sarg.	Ovateleaf Hawthorn
Quercus lyrata Walter	Overcup Oak	✓
Limnodea arkansana (Nutt.) L.H. Dewey	Ozark grass
Astragalus distortus Torr. & A. Gray	Ozark milkvetch
Tradescantia ozarkana E.S. Anderson & Woodson	Ozark Spiderwort
Hamamelis vernalis Sarg.	Ozark Witchhazel
Penstemon pallidus Small	Pale Beardtongue
Rumex altissimus Alph. Wood	pale dock
Torreyochloa pallida (Torr.) Church	Pale False Mannagrass
Arnoglossum atriplicifolium (L.) H. Rob.	Pale Indian Plantain
Clematis versicolor Small ex Rydb.	Pale Leather Flower
Lobelia appendiculata A. DC.	Pale Lobelia
Echinacea pallida (Nutt.) Nutt.	Pale Purple Coneflower
Persicaria lapathifolia (L.) Delarbre	Pale Smartweed
Impatiens pallida Nutt.	Pale Touch-Me-Not
Platanthera flava (L.) Lindl.	palegreen orchid
Helianthus strumosus L.	paleleaf woodland sunflower
Lobelia spicata Lam.	Palespike Lobelia
Desmodium paniculatum (L.) DC.	panicledleaf ticktrefoil
Carex umbellata Schkuhr ex Willd.	Parasol Sedge
Antennaria parlinii Fernald	Parlin's pussytoes
Crataegus marshallii Eggl.	parsley hawthorn
Chamaecrista fasciculata (Michx.) Greene	Partridge Pea	✓
Mitchella repens L.	Partridgeberry	✓
Heliotropium tenellum (Nutt.) Torr.	pasture heliotrope
Asimina triloba (L.) Dunal	Pawpaw
Salix amygdaloides Andersson	peachleaf willow
Crataegus calpodendron (Ehrh.) Medik.	pear hawthorn
Carya illinoinensis (Wangenh.) K. Koch	Pecan
Cardamine pensylvanica Muhl. ex Willd.	Pennsylvania bittercress
Rubus pensilvanicus Poir.	Pennsylvania Blackberry
Parietaria pensylvanica Muhl. ex Willd.	Pennsylvania Pellitory
Carex pensylvanica Lam.	Pennsylvania sedge
Polygonum pensylvanicum L.	Pennsylvania Smartweed
Nekemias arborea (L.) J. Wen & Boggan	Peppervine
Uvularia perfoliata L.	perfoliate bellwort
Desmodium perplexum B.G. Schub.	perplexed ticktrefoil
Cuscuta obtusiflora Kunth	Peruvian dodder
Lepuropetalon spathulatum Elliott	Petiteplant
Erigeron philadelphicus L.	Philadelphia Fleabane
Panicum philadelphicum Bernh. ex Trin.	Philadelphia panicgrass
Pontederia cordata L.	Pickerelweed
Carya glabra (Mill.) Sweet	Pignut Hickory
Quercus palustris Münchh.	Pin Oak	✓
Acalypha ostryifolia Riddell	Pineland Threeseed Mercury
Oenothera speciosa Nutt.	Pink Evening Primrose
Strophostyles umbellata (Muhl. ex Willd.) Britton	pink fuzzybean
Fleischmannia incarnata (Walter) R.M. King & H. Rob.	pink thoroughwort
Mononeuria patula (Michx.) Dillenb. & Kadereit	Pitcher's Stitchwort
Chenopodium berlandieri Moq.	Pitseed Goosefoot
Gentiana alba Muhl. ex Nutt.	plain gentian
Eragrostis intermedia Hitchc.	plains lovegrass
Muhlenbergia cuspidata (Torr. ex Hook.) Rydb.	plains muhly
Froelichia floridana (Nutt.) Moq.	plains snakecotton
Planera aquatica J.F. Gmel.	Planertree
Polygonum tenue Michx.	pleatleaf knotweed
Cyperus plukenetii Fernald	Plukenet's Flatsedge
Crataegus persimilis Sarg.	Plumleaf Hawthorn
Diodia teres Walter	Poorjoe
Hesperostipa spartea (Trin.) Barkworth	Porcupinegrass
Calamagrostis porteri A. Gray	Porter's Reedgrass
Ilex decidua Walter	Possumhaw
Quercus stellata Wangenh.	Post Oak	✓
Krigia dandelion (L.) Nutt.	potato dwarfdandelion
Sporobolus vaginiflorus (Torr. ex A. Gray) Alph. Wood	poverty dropseed
Danthonia spicata (L.) P. Beauv. ex Roem. & Schult.	Poverty Oatgrass
Juncus tenuis Willd.	poverty rush
Thalia dealbata Fraser ex Roscoe	powdery alligator-flag
Hemionitis artax Christenh.	Powdery False Cloak Fern
Acaciella angustissima (Mill.) Britton & Rose	Prairie Acacia
Liatris pycnostachya Michx.	Prairie Blazing Star
Sisyrinchium campestre E.P. Bicknell	prairie blue-eyed grass
Amphiachyris dracunculoides (DC.) Nutt.	Prairie Broomweed
Camassia angusta (Engelm. & A. Gray) Blank.	Prairie Camas
Spartina pectinata Bosc ex Link	Prairie Cordgrass
Malus ioensis (Alph. Wood) Britton	Prairie Crab Apple
Sporobolus heterolepis (A. Gray) A. Gray	Prairie Dropseed
Agalinis heterophylla (Nutt.) Small ex Britton	prairie false foxglove
Erigeron strigosus Muhl. ex Willd.	Prairie Fleabane
Solidago ptarmicoides (Torr. & A.Gray) B.Boivin	Prairie Goldenrod
Packera plattensis (Nutt.) W.A. Weber & Á. Löve	prairie groundsel
Koeleria macrantha (Ledeb.) Schult.	Prairie Junegrass
Asclepias sullivantii Engelm. ex A. Gray	Prairie Milkweed
Panicum brachyanthum Steud.	prairie panicgrass
Penstemon cobaea Nutt.	Prairie Penstemon
Phacelia strictiflora (Engelm. & A. Gray) A. Gray	prairie phacelia
Nemastylis geminiflora Nutt.	Prairie Pleatleaf
Rosa arkansana Porter	prairie rose
Silphium terebinthinaceum Jacq.	Prairie Rosinweed
Rhynchosia latifolia Nutt. ex Torr. & A. Gray	prairie snoutbean
Tradescantia occidentalis (Britton) Smyth	Prairie Spiderwort
Carex suberecta (Olney) Britton	Prairie Straw Sedge
Rhus lanceolata (A. Gray) Britton	prairie sumac
Helianthus petiolaris Nutt.	Prairie Sunflower
Croton monanthogynus Michx.	Prairie Tea
Aristida oligantha Michx.	Prairie Threeawn
Triodanis lamprosperma McVaugh	prairie Venus' looking-glass
Viola pedatifida G. Don	prairie violet
Sphenopholis obtusata (Michx.) Scribn.	Prairie Wedgescale
Salix humilis Marshall	Prairie Willow
Carex atlantica L.H. Bailey	prickly bog sedge
Dodecatheon meadia L.	Pride of Ohio
Polygala incarnata L.	procession flower
Amaranthus albus L.	Prostrate Pigweed
Desmodium rotundifolium DC.	prostrate ticktrefoil
Carex corrugata Fernald	prune-fruit sedge
Carex hirtifolia Mack.	pubescent sedge
Marshallia caespitosa Nutt. ex DC.	puffballs
Sporobolus neglectus Nash	puffsheath dropseed
Fraxinus profunda (Bush) Bush	Pumpkin Ash
Pellaea atropurpurea (L.) Link	Purple Cliffbrake
Agalinis purpurea (L.) Pennell	Purple False Foxglove
Eragrostis spectabilis (Pursh) Steud.	purple lovegrass
Thalictrum dasycarpum Fisch. & Avé-Lall.	Purple Meadow-rue
Asclepias purpurascens L.	Purple Milkweed
Polygala sanguinea L.	purple milkwort
Passiflora incarnata L.	purple passionflower
Callirhoe involucrata (Torr. & A. Gray) A. Gray	Purple Poppy Mallow
Dalea purpurea Vent.	purple prairie clover
Iodanthus pinnatifidus (Michx.) Steud.	Purple Rocket
Triplasis purpurea (Walter) Chapm.	purple sandgrass
Helenium flexuosum Raf.	Purplehead Sneezeweed
Epilobium coloratum Biehler	purpleleaf willowherb
Symphyotrichum puniceum (L.) Á. Löve & D. Löve	Purplestem aster
Dalea gattingeri (A. Heller) Barneby	Purpletassels
Tridens flavus (L.) Hitchc.	Purpletop
Vicia minutiflora F.G. Dietr.	pygmyflower vetch
Populus tremuloides Michx.	Quaking Aspen
Filipendula rubra (Hill) B.L. Rob.	queen of the prairie
Hieracium gronovii L.	queendevil
Pseudognaphalium obtusifolium (L.) Hilliard & B.L. Burtt	Rabbit-tobacco
Proboscidea louisianica (Mill.) Thell.	Ram's Horn
Allium tricoccum Aiton	Ramp
Botrychium virginianum (L.) Sw.	Rattlesnake Fern
Eryngium yuccifolium Michx.	Rattlesnake Master
Dichanthelium ravenelii (Scribn. & Merr.) Gould	Ravenel's rosette grass
Carex crus-corvi Shuttlw. ex Kunze	ravenfoot sedge
Aesculus pavia L.	red buckeye
Aquilegia canadensis L.	Red Columbine	✓
Carya ovalis (Wangenh.) Sarg.	Red Hickory
Acer rubrum L.	Red Maple	✓
Morus rubra L.	Red Mulberry
Spermolepis inermis (Nutt. ex DC.) Mathias & Constance	Red River scaleseed
Chelone obliqua L.	Red Turtlehead
Monarda russeliana Nutt. ex Sims	Redpurple Beebalm
Asclepias variegata L.	Redring Milkweed
Cyperus erythrorhizos Muhl.	redroot flatsedge
Panicum rigidulum Bosc ex Nees	Redtop Panicgrass
Polanisia dodecandra (L.) DC.	redwhisker clammyweed
Phalaris arundinacea L.	Reed Canary Grass
Cyperus refractus Engelm. ex Boeckeler	Reflexed Flatsedge
Carex retroflexa Muhl. ex Willd.	reflexed sedge
Pleopeltis polypodioides (L.) Andrews & Windham	resurrection fern
Crataegus reverchonii Sarg.	Reverchon's Hawthorn
Carex reznicekii Werier	Reznicek's Sedge
Acalypha rhomboidea Raf.	Rhomboid Mercury	✓
Carex virescens Muhl. ex Willd.	ribbed sedge
Symphyotrichum dumosum (L.) G.L. Nesom	Rice Button Aster
Leersia oryzoides (L.) Sw.	rice cutgrass
Heuchera richardsonii R. Br.	Richardson's Alumroot
Collinsonia canadensis L.	richweed
Carex oligocarpa Schkuhr ex Willd.	richwoods sedge
Oligoneuron riddellii (Frank ex Riddell) Rydb.	Riddell's goldenrod
Linum striatum Walter	ridged yellow flax
Carex tetanica Schkuhr	rigid sedge
Juncus filipendulus Buckley	Ringseed Rush
Betula nigra L.	River Birch	✓
Bolboschoenus fluviatilis (Torr.) Soják	River Bulrush
Vitis riparia Michx.	Riverbank Grape
Elymus riparius Wiegand	Riverbank Wildrye
Sisyrinchium langloisii Greene	roadside blue-eyed grass
Erigeron pulchellus Michx.	Robin's Plantain	✓
Ranunculus micranthus Nutt.	Rock Buttercup
Huperzia porophila (Lloyd & Underw.) Holub	Rock Clubmoss
Ulmus thomasii Sarg.	Rock Elm
Muhlenbergia sobolifera (Muhl. ex Willd.) Trin.	rock muhly
Polypodium virginianum L.	rock polypody
Liatris ligulistylis (A. Nelson) K. Schum.	Rocky Mountain blazing star
Cuscuta glomerata Choisy	rope dodder
Glandularia canadensis (L.) Nutt.	Rose Mock Vervain
Sabatia angularis (L.) Pursh	Rosepink
Helianthus silphioides Nutt.	Rosinweed Sunflower
Carex rosea Schkuhr ex Willd.	rosy sedge
Echinochloa muricata (P. Beauv.) Fernald	rough barnyardgrass
Liatris aspera Michx.	rough blazing star
Xanthium strumarium L.	rough cocklebur
Rudbeckia grandiflora (D. Don) J.F. Gmel. ex DC.	Rough Coneflower
Sporobolus clandestinus (Biehler) Hitchc.	rough dropseed
Hedeoma hispida Pursh	Rough False Pennyroyal
Cyperus retrofractus (L.) Torr.	Rough Flatsedge
Hieracium scabrum Michx.	Rough Hawkweed
Dichanthelium leucothrix (Nash) Freckmann	rough panicgrass
Nabalus asper (Michx.) Torr. & A.Gray	Rough Rattlesnakeroot
Amaranthus tuberculatus (Moq.) Sauer	Roughfruit Amaranth
Cornus drummondii C.A. Mey.	roughleaf dogwood
Silphium radula Nutt.	roughstem rosinweed
Gratiola virginiana L.	roundfruit hedgehyssop
Lespedeza capitata Michx.	roundhead lespedeza
Juncus validus Coville	Roundhead Rush
Solidago patula Muhl. ex Willd.	Roundleaf Goldenrod
Smilax rotundifolia L.	roundleaf greenbrier
Hepatica americana (DC.) Ker Gawl.	Roundleaf Liverleaf
Heteranthera rotundifolia (Kunth) Griseb.	roundleaf mudplantain
Packera obovata (Muhl. ex Willd.) W.A. Weber & Á. Löve	roundleaf ragwort
Eupatorium rotundifolium L.	Roundleaf Thoroughwort
Dichanthelium sphaerocarpon (Elliott) Gould	roundseed panicgrass
Hypericum sphaerocarpum Michx.	Roundseed St. Johnswort
Agalinis gattingeri (Small) Small	Roundstem False Foxglove
Silene regia Sims	Royal Catchfly
Thalictrum thalictroides (L.) Eames & B. Boivin	Rue Anemone
Scirpus pendulus Muhl.	Rufous Bulrush
Trifolium stoloniferum Muhl. ex Eaton	Running Buffalo Clover
Euonymus obovatus Nutt.	running strawberry bush
Viburnum rufidulum Raf.	Rusty Blackhaw
Aristida ramosissima Engelm. ex A. Gray	s-curve threeawn
Stuckenia pectinata (L.) Börner	Sago Pondweed
Orbexilum pedunculatum (Mill.) Rydb.	Sampson's snakeroot
Cardamine parviflora L.	sand bittercress
Andropogon hallii Hack.	sand bluestem
Sporobolus cryptandrus (Torr.) A. Gray	sand dropseed
Vitis rupestris Scheele	sand grape
Eragrostis trichodes (Nutt.) Alph. Wood	Sand Lovegrass
Viola affinis Leconte	sand violet
Eragrostis frankii C.A. Mey. ex Steud.	Sandbar Lovegrass
Salix interior Rowlee	Sandbar Willow
Sassafras albidum (Nutt.) Nees	Sassafras	✓
Clematis catesbyana Pursh	Satincurls
Smilax bona-nox L.	saw greenbrier
Rubus argutus Link	Sawtooth Blackberry
Helianthus grosseserratus M. Martens	Sawtooth Sunflower
Cuscuta gronovii Willd. ex Schult.	Scaldweed
Liatris squarrosa (L.) Michx.	Scaly Blazing Star
Oenothera suffrutescens (Moc. & Sessé ex Ser.) W.L.Wagner & Hoch	Scarlet Beeblossom
Castilleja coccinea (L.) Spreng.	Scarlet Indian Paintbrush
Quercus coccinea Münchh.	Scarlet Oak	✓
Crataegus schuettei Ashe	Schuette's hawthorn
Cyperus schweinitzii Torr.	Schweinitz's flatsedge
Equisetum hyemale L.	scouringrush horsetail
Corydalis aurea Willd.	scrambled eggs
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi	Scratchgrass
Carex timida Naczi & B.A. Ford	Sedge
Ludwigia alternifolia L.	Seedbox
Polygala senega L.	Seneca snakeroot
Onoclea sensibilis L.	Sensitive Fern
Chamaecrista nictitans (L.) Moench	Sensitive Partridge Pea
Ulmus serotina Sarg.	September Elm
Sagittaria rigida Pursh	sessilefruit arrowhead
Uvularia sessilifolia L.	sessileleaf bellwort
Desmodium sessilifolium (Torr.) Torr. & A. Gray	Sessileleaf Ticktrefoil
Carya ovata (Mill.) K. Koch	Shagbark Hickory
Digitaria villosa (Walter) Pers.	shaggy crabgrass
Evolvulus nuttallianus Schult.	shaggy dwarf morning-glory
Carex lurida Wahlenb.	Shallow Sedge
Carex oxylepis Torr. & Hook.	sharpscale sedge
Mimulus alatus Aiton	sharpwing monkeyflower
Carex tonsa (Fernald) E.P. Bicknell	shaved sedge
Carya laciniosa (Michx. f.) G. Don	Shellbark Hickory
Quercus imbricaria Michx.	Shingle Oak
Galium concinnum Torr. & A. Gray	shining bedstraw
Huperzia lucidula (Michx.) Trevis.	Shining Clubmoss
Amorpha nitens Boynt.	shining false indigo
Spiranthes lucida (H.H. Eaton) Ames	Shining Ladies' Tresses
Sphenopholis nitida (Biehler) Scribn.	shiny wedgescale
Carex hyalinolepis Steud.	shoreline sedge
Abdra brachycarpa (Nutt. ex Torr. & A.Gray) Greene	Short-Fruited Whitlow-Grass
Gratiola viscidula Pennell	Short's Hedgehyssop
Borodinia dentata (Raf.) P.J.Alexander & Windham	Short's Rockcress
Carex shortiana Dewey	Short's sedge
Alopecurus aequalis Sobol.	Shortawn Foxtail
Sagittaria brevirostra Mack. & Bush	shortbeak arrowhead
Carex brevior (Dewey) Mack.	shortbeak sedge
Rhynchospora corniculata (Lam.) A. Gray	shortbristle horned beaksedge
Pinus echinata Mill.	Shortleaf Pine	✓
Myriophyllum sibiricum Kom.	shortspike watermilfoil
Cerastium brachypodum (Engelm. ex A. Gray) B.L. Rob.	shortstalk chickweed
Rubus curtipes L.H. Bailey	shortstalk dewberry
Calystegia silvatica (Kit.) Griseb.	shortstalk false bindweed
Oenothera grandis (Britton) Smyth	showy evening primrose
Solidago speciosa Nutt.	showy goldenrod
Cypripedium reginae Walter	Showy Lady's Slipper
Galearis spectabilis (L.) Raf.	Showy Orchid
Desmodium canadense (L.) DC.	showy ticktrefoil
Lespedeza frutescens (L.) Hornem.	shrubby lespedeza
Hypericum prolificum L.	Shrubby St. Johnswort
Quercus shumardii Buckley	Shumard Oak
Borodinia canadensis (L.) P.J.Alexander & Windham	Sicklepod
Bouteloua curtipendula (Michx.) Torr.	Side-oats Grama
Stylosanthes biflora "(L.) Britton	sidebeak pencilflower
Symphyotrichum sericeum (Vent.) G.L. Nesom	silky aster
Cornus obliqua Raf.	silky dogwood
Elymus villosus Muhl. ex Willd.	Silky Wild Rye
Salix sericea Marshall	silky willow
Deparia acrostichoides (Sw.) M. Kato	silver false spleenwort
Acer saccharinum L.	Silver Maple	✓
Saccharum alopecuroides (L.) Nutt.	silver plumegrass
Gamochaeta argyrinea G.L. Nesom	silvery everlasting
Vulpia octoflora (Walter) Rydb.	sixweeks fescue
Agalinis skinneriana (Alph. Wood) Britton	Skinner's False Foxglove
Symphyotrichum oolentangiense (Riddell) G.L. Nesom	skyblue aster
Silene antirrhina L.	sleepy silene
Schoenoplectus heterochaetus (Chase) Soják	slender bulrush
Digitaria filiformis (L.) Koeler	Slender Crabgrass
Physostegia intermedia (Nutt.) Engelm. & A. Gray	slender false dragonhead
Fimbristylis autumnalis (L.) Roem. & Schult.	slender fimbry
Cyperus bipartitus Torr.	slender flatsedge
Lespedeza virginica (L.) Britton	slender lespedeza
Carex gracilescens Steud.	Slender Looseflower Sedge
Plantago heterophylla Nutt.	slender plantain
Arabis pycnocarpa M.Hopkins	Slender Rock Cress
Eleocharis tenuis (Willd.) Schult.	slender spikerush
Acalypha monococca (Engelm. ex A. Gray) Lill. W. Mill. & Gandhi	slender threeseed mercury
Acalypha gracilens A. Gray	Slender Threeseed Mercury
Cardamine angustata O.E. Schulz	Slender Toothwort
Najas gracillima (A. Braun ex Engelm.) Magnus	slender waternymph
Sphenopholis intermedia (Rydb.) Rydb.	slender wedgescale
Carex digitalis Willd.	slender woodland sedge
Oxalis dillenii Jacq.	Slender Yellow Woodsorrel
Xyris torta Sm.	slender yelloweyed grass
Agalinis tenuifolia (Vahl) Raf.	Slenderleaf False Foxglove
Erigeron tenuis Torr. & A. Gray	slenderleaf fleabane
Strophostyles leiosperma (Torr. & A. Gray) Piper	Slickseed Fuzzybean
Tridens muticus (Torr.) Nash	slim tridens
Muhlenbergia tenuiflora	Slimflower Muhly
Pediomelum tenuiflorum (Pursh) A.N.Egan	Slimflower Scurfpea
Chenopodium pallescens Standl.	slimleaf goosefoot
Asclepias stenophylla A. Gray	Slimleaf Milkweed
Dichanthelium linearifolium (Scribn. ex Nash) Gould	slimleaf panicgrass
Juncus diffusissimus Buckley	Slimpod Rush
Triodanis leptocarpa (Nutt.) Nieuwl.	slimpod Venus' looking-glass
Aristida longespica Poir.	slimspike threeawn
Calamagrostis stricta (Timm) Koeler	slimstem reedgrass
Ulmus rubra Muhl.	Slippery Elm
Bidens discoidea (Torr. & A. Gray) Britton	Small Beggarticks
Platanthera clavellata (Michx.) Luer	small green wood orchid
Palafoxia callosa (Nutt.) Torr. & A. Gray	small palafox
Potamogeton pusillus L.	small pondweed
Scutellaria parvula Michx.	Small Skullcap
Ipomoea lacunosa L.	Small White Morning-Glory	✓
Helianthus microcephalus Torr. & A. Gray	Small Woodland Sunflower
Ranunculus abortivus L.	Small-Flowered Buttercup
Corydalis micrantha (Engelm. ex A. Gray) A. Gray	smallflower fumewort
Lipocarpha micrantha (Vahl) G. Tucker	smallflower halfchaff sedge
Eupatorium semiserratum DC.	smallflower thoroughwort
Ludwigia microcarpa Michx.	smallfruit primrose-willow
Symphyotrichum parviceps (Burgess) G.L. Nesom	Smallhead Aster
Boltonia diffusa Elliott	smallhead doll's daisy
Boehmeria cylindrica (L.) Sw.	Smallspike False Nettle	✓
Cuscuta polygonorum Engelm.	smartweed dodder
Phyllanthus polygonoides Nutt. ex Spreng.	smartweed leaf-flower
Viburnum recognitum Fernald	Smooth Arrowwood
Symphyotrichum laeve (L.) Á. Löve & D. Löve	Smooth Blue Aster
Pellaea glabella Mett. ex Kuhn	smooth cliffbrake
Spermacoce glabra Michx.	smooth false buttonweed
Paronychia canadensis (L.) Alph. Wood	smooth forked nailwort
Stachys tenuifolia Willd.	smooth hedgenettle
Equisetum laevigatum A. Braun	smooth horsetail
Vernonia fasciculata Michx.	Smooth Ironweed
Heliopsis helianthoides (L.) Sweet	Smooth Oxeye
Phlox glaberrima L.	Smooth Phlox
Borodinia laevigata (Muhl. ex Willd.) P.J.Alexander & Windham	Smooth Rockcress
Desmodium marilandicum (L.) DC.	smooth small-leaf ticktrefoil
Polygonatum biflorum (Walter) Elliott	smooth Solomon's seal
Rhus glabra L.	Smooth Sumac
Desmodium laevigatum (Nutt.) DC.	smooth ticktrefoil
Symphyotrichum turbinellum (Lindl.) G.L. Nesom	Smooth Violet Prairie Aster
Symphyotrichum racemosum (Elliott) G.L. Nesom	Smooth White Oldfield Aster
Aureolaria flava (L.) Farw.	Smooth Yellow False Foxglove
Carex laeviconica Dewey	smoothcone sedge
Carex laevivaginata (Kük.) Mack.	smoothsheath sedge
Pogonia ophioglossoides (L.) Ker Gawl.	snakemouth orchid
Trillium nivale Riddell	snow trillium
Yucca glauca Nutt.	soapweed yucca
Agrimonia pubescens Wallr.	soft agrimony
Carex conjuncta Boott	Soft Fox Sedge
Bradburia pilosa (Nutt.) Semple	Soft Goldenaster
Berlandiera pumila (Michx.) Nutt.	soft greeneyes
Cirsium carolinianum (Walter) Fernald & B.G. Schub.	Soft Thistle
Viburnum molle Michx.	Softleaf Arrowwood
Rubus mollior L.H. Bailey	Softleaf Blackberry
Dichanthelium malacophyllum (Nash) Gould	Softleaf Rosette Grass
Schoenoplectus tabernaemontani (C.C. Gmel.) Palla	softstem bulrush
Cissus trifoliata (L.) L.	sorrelvine
Elymus glabriflorus (Vasey ex L.H. Dewey) Scribn. & C.R. Ball	Southeastern Wildrye
Ophioglossum vulgatum L.	southern adderstongue
Viburnum dentatum L.	Southern Arrowwood
Aconitum uncinatum L.	Southern Blue Monkshood
Houstonia micrantha (Shinners) Terrell	southern bluet
Typha domingensis Pers.	southern cattail
Malus angustifolia (Aiton) Michx.	Southern Crabapple
Rubus trivialis Michx.	Southern Dewberry
Eurybia hemispherica (Alexander) G.L. Nesom	southern prairie aster
Quercus falcata Michx.	Southern Red Oak	✓
Carex austrina (Small) Mack.	southern sedge
Acer saccharum subsp. floridanum (Chapm.) Desmarais	Southern Sugar Maple
Najas guadalupensis (Spreng.) Magnus	southern waternymph
Galium virgatum Nutt.	southwestern bedstraw
Oenothera spachiana Torr. & A. Gray	Spach's evening primrose
Bidens bipinnata L.	Spanish needles
Hexalectris spicata (Walter) Barnhart	spiked crested coralroot
Ceratophyllum echinatum A. Gray	spineless hornwort
Dryopteris carthusiana (Vill.) H.P. Fuchs	spinulose woodfern
Andropogon ternarius Michx.	splitbeard bluestem
Gamochaeta purpurea (L.) Cabrera	spoonleaf purple everlasting
Monarda punctata L.	Spotted Beebalm
Geranium maculatum L.	spotted geranium
Potamogeton pulcher Tuck.	spotted pondweed
Euphorbia maculata (L.) Small	Spotted Spurge
Hypericum punctatum Lam.	Spotted St. Johnswort
Cicuta maculata L.	Spotted Water Hemlock
Chaerophyllum procumbens (L.) Crantz	spreading chervil
Apocynum androsaemifolium L.	Spreading Dogbane
Carex laxiculmis Schwein.	spreading sedge
Rorippa sinuata (Nutt.) Hitchc.	spreading yellowcress
Geum vernum (Raf.) Torr. & A. Gray	Spring Avens
Collinsia verna Nutt.	spring blue eyed Mary
Corallorhiza wisteriana Conrad	spring coralroot
Myosotis verna Nutt.	spring forget-me-not
Spiranthes vernalis Engelm. & A. Gray	spring lady's tresses
Centrosema virginianum (L.) Benth.	spurred butterfly pea
Eleocharis quadrangulata (Michx.) Roem. & Schult.	squarestem spikerush
Carex squarrosa L.	squarrose sedge
Dicentra canadensis (Goldie) Walp.	squirrel corn
Festuca sciurea Nutt.	Squirreltail Fescue
Hypericum hypericoides (L.) Crantz	St. Andrew's cross
Rorippa sessiliflora (Nutt.) Hitchc.	stalkless yellowcress
Chenopodium standleyanum Aellen	Standley's Goosefoot
Lemna trisulca L.	Star Duckweed
Coreopsis pubescens Elliott	star tickseed
Maianthemum stellatum (L.) Link	Starry False Lily of the Valley
Silphium asteriscus L.	Starry Rosinweed
Dichanthelium depauperatum (Muhl.) Gould	starved panicgrass
Rubus steelei L.H. Bailey	Steele's Dewberry
Spiraea tomentosa L.	steeplebush
Oenothera triloba Nutt.	Stemless Evening Primrose
Silene caroliniana Walter	sticky catchfly
Galium aparine L.	stickywilly
Oxypolis rigidior (L.) Raf.	stiff cowbane
Cornus foemina Mill.	Stiff Dogwood
Oligoneuron rigidum (L.) Small	Stiff Goldenrod
Thelesperma filifolium (Hook.) A. Gray	stiff greenthread
Galium tinctorium (L.) Scop.	Stiff Marsh Bedstraw
Helianthus pauciflorus Nutt.	Stiff Sunflower
Coreopsis palmata Nutt.	Stiff Tickseed
Desmodium obtusum (Muhl. ex Willd.) DC.	Stiff Ticktrefoil
Linum medium (Planch.) Britton	stiff yellow flax
Juncus nodatus Coville	stout rush
Cyperus strigosus L.	Straw-Colored Flatsedge	✓
Physalis grisea (Waterf.) M. Martínez	Strawberry-Tomato
Philadelphus hirsutus Nutt.	Streambank Mock Orange
Viola striata Aiton	striped cream violet
Acer saccharum Marshall	Sugar Maple	✓
Celtis laevigata Willd.	Sugarberry
Saccharum giganteum (Walter) Pers.	sugarcane plumegrass
Sullivantia sullivantii (Torr. & A. Gray) Britton	Sullivant's Coolwort
Vitis aestivalis Michx.	summer grape
Phemeranthus parviflorus (Nutt.) Kiger	sunbright
Rhododendron viscosum (L.) Torr.	Swamp Azalea
Quercus michauxii Nutt.	Swamp Chestnut Oak	✓
Populus heterophylla L.	Swamp Cottonwood
Rumex verticillatus L.	Swamp Dock
Clematis crispa L.	swamp leather flower
Decodon verticillatus (L.) Elliott	swamp loosestrife
Pedicularis lanceolata Michx.	Swamp Lousewort
Asclepias incarnata L.	Swamp Milkweed
Rosa palustris Marshall	swamp rose
Cladium mariscus (L.) Pohl	swamp sawgrass
Persicaria hydropiperoides (Michx.) Small	Swamp Smartweed
Cirsium muticum Michx.	swamp thistle
Quercus bicolor Willd.	Swamp White Oak	✓
Carex swanii (Fernald) Mack.	Swan's sedge
Schoenoplectus subterminalis (Torr.) Soják	swaying bulrush
Rudbeckia subtomentosa Pursh	sweet coneflower
Malus coronaria (L.) Mill.	Sweet Crabapple
Cinna arundinacea L.	Sweet Wood Reed	✓
Eutrochium purpureum (L.) E.E. Lamont	Sweetscented Joe Pye Weed	✓
Panicum virgatum L.	Switchgrass
Drymocallis arguta Pursh	Tall Cinquefoil
Agalinis aspera (Douglas ex Benth.) Britton	tall false foxglove
Solidago altissima L.	Tall Goldenrod
Agrimonia gryposepala Wallr.	tall hairy agrimony
Rhynchospora macrostachya Torr. ex A. Gray	tall horned beaksedge
Delphinium exaltatum Aiton	tall larkspur
Lespedeza stuevei Nutt.	tall lespedeza
Prenanthes altissima L.	Tall Rattlesnakeroot
Anemone virginiana L.	Tall Thimbleweed
Cirsium altissimum (L.) Hill	tall thistle
Eupatorium altissimum L.	Tall Thoroughwort
Coreopsis tripteris L.	Tall Tickseed
Limnosciadium pinnatum (DC.) Mathias & Constance	tansy dogshade
Dichanthelium acuminatum (Sw.) Gould & C.A. Clark	Tapered Rosette Grass
Lycopus rubellus Moench	taperleaf water horehound
Cyperus acuminatus Torr. & Hook. ex Torr.	tapertip flatsedge
Juncus acuminatus Michx.	tapertip rush
Trillium viridescens Nutt.	Tapertip Wakerobin
Brickellia grandiflora (Hook.) Nutt.	tasselflower brickellbush
Eragrostis hypnoides "(Lam.) Britton	teal lovegrass
Cystopteris ×tennesseensis Shaver	Tennessee bladderfern
Anemone berlandieri Pritz.	tenpetal thimbleweed
Callitriche terrestris Raf.	terrestrial water-starwort
Bergia texana (Hook.) Seub. ex Walp.	Texas bergia

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