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3083 Plants Found

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Ordered by common name.

Scientific Name	Common Name	†	Map‡
Salvia verticillata L.	lilac sage
Aubrieta deltoidea (L.) DC.	Lilacbush
Lonicera dioica L.	Limber Honeysuckle
Ophioglossum engelmannii Prantl	limestone adderstongue
Cardamine douglassii Britton	limestone bittercress
Clinopodium arkansanum (Nutt.) House	limestone calamint
Phemeranthus calcaricus (Ware) Kiger	Limestone Fameflower
Carex granularis Muhl. ex Willd.	limestone meadow sedge
Isoetes butleri Engelm.	Limestone Quillwort
Ruellia strepens L.	limestone wild petunia
Viburnum dilatatum Thunb.	Linden Viburnum
Chaiturus marrubiastrum (L.) Rchb.	Lion's Tail
Hordeum pusillum Nutt.	Little Barley
Schizachyrium scoparium (Michx.) Nash	Little Bluestem
Medicago minima (L.) L.	little bur-clover
Lemna obscura (Austin) Daubs	little duckweed
Oenothera perennis L.	Little Evening Primrose
Spiranthes tuberosa Raf.	little lady's tresses
Eragrostis minor Host	little lovegrass
Trillium cuneatum Raf.	Little Sweet Betsy
Heuchera parviflora Bartlett	Littleflower Alumroot
Scleria oligantha Michx.	littlehead nutrush
Crataegus spathulata Michx.	littlehip hawthorn
Tilia cordata Mill.	Littleleaf Linden
Camelina microcarpa Andrz. ex DC.	littlepod false flax
Carex microdonta Torr. & Hook.	littletooth sedge
Saururus cernuus L.	Lizard's Tail
Asplenium pinnatifidum Nutt.	Lobed Spleenwort
Coreopsis auriculata L.	Lobed Tickseed
Pinus taeda L.	Loblolly Pine	✓
Dryopteris celsa "(Wm. Palmer) Knowlt.	log fern
Populus nigra L.	Lombardy poplar
Phegopteris connectilis (Michx.) Watt	long beechfern
Delphinium tenuissimum Sm.	Long Knight's-spur
Carex inops L.H. Bailey	Long-stolon Sedge
Carex longii Mack.	Long's sedge
Sagittaria australis (J.G. Sm.) Small	Longbeak Arrowhead
Ranunculus longirostris Godr.	Longbeak Buttercup
Dactylorhiza viridis (L.) R.M. Bateman, A.M. Pridgeon & M.W. Chase	Longbract Frog Orchid
Tradescantia bracteata Small	longbract spiderwort
Crocanthemum canadense (L.) Britton	Longbranch Frostweed
Heuchera longiflora Rydb.	Longflower Alumroot
Oenothera filiformis (Small) W.L. Wagner & Hoch	Longflower Beeblossom
Nicotiana longiflora Cav.	longflower tobacco
Carex comosa Boott	longhair sedge
Eriogonum longifolium Nutt.	longleaf buckwheat
Physalis longifolia Nutt.	Longleaf Groundcherry
Asclepias longifolia Michx.	longleaf milkweed
Potamogeton nodosus Poir.	longleaf pondweed
Stellaria longifolia Muhl. ex Willd.	longleaf starwort
Houstonia longifolia Gaertn.	longleaf summer bluet
Chasmanthium sessiliflorum (Poir.) Yates	longleaf woodoats
Penstemon calycosus Small	Longsepal Beardtongue
Tridens strictus (Nutt.) Nash	Longspike Tridens
Viola rostrata Pursh	longspur violet
Carex pedunculata Muhl. ex Willd.	longstalk sedge
Osmorhiza longistylis (Torr.) DC.	longstyle sweetroot
Rubus griseus L.H. Bailey	Loogootee Blackberry
Pycnanthemum loomisii Nutt.	Loomis' Mountainmint
Apera spica-venti (L.) P. Beauv.	loose silkybent
Justicia lanceolata (Chapm.) Small	looseflower water-willow
Juncus secundus P. Beauv. ex Poir.	lopsided rush
Cynanchum louiseae Kartesz & Gandhi	Louise's swallow-wort
Orobanche ludoviciana Nutt.	Louisiana Broomrape
Carex louisianica L.H. Bailey	Louisiana sedge
Calystegia spithamaea (L.) Pursh	low false bindweed
Malva pusilla Sm.	Low Mallow
Scleria verticillata Muhl. ex Willd.	low nutrush
Amelanchier humilis Wiegand	low serviceberry
Ranunculus pusillus Poir.	low spearwort
Kyllinga pumila Michx.	low spikesedge
Carex socialis Mohlenbr. & Schwegm.	Low Woodland Sedge
Penstemon alluviorum Pennell	Lowland Beardtongue
Cystopteris protrusa (Weath.) Blasdell	lowland bladderfern
Rotala ramosior (L.) Koehne	lowland rotala
Lysimachia hybrida Michx.	Lowland Yellow Loosestrife
Rubus roribaccus (L.H. Bailey) Rydb.	Lucretia Dewberry
Arabidopsis lyrata (L.) O'Kane & Al-Shehbaz	Lyrate Rockcress
Salvia lyrata L.	lyreleaf sage
Pseudognaphalium macounii (Greene) Kartesz	Macoun's cudweed
Calystegia macounii (Greene) Brummitt	Macoun's False Bindweed
Euphorbia helioscopia L.	madwoman's milk
Dianthus deltoides L.	maiden pink
Asplenium trichomanes L.	maidenhair spleenwort
Silene vulgaris (Moench) Garcke	maidenstears
Diplachne fusca (L.) P.Beauv. ex Roem. & Schult.	Malabar Sprangletop
Ipomoea pandurata (L.) G. Mey.	man of the earth
Cyperus lancastriensis Porter ex A. Gray	Manyflower Flatsedge
Hydrocotyle umbellata L.	manyflower marshpennywort
Ludwigia polycarpa Short & Peter	Manyfruit Primrose-willow
Carex sychnocephala Carey	manyhead sedge
Symphyotrichum anomalum (Engelm.) G.L. Nesom	Manyray Aster
Cyperus polystachyos Rottb.	Manyspike Flatsedge
Chenopodiastrum simplex (Torr.) S.Fuentes, Uotila & Borsch	Mapleleaf Goosefoot
Viburnum acerifolium L.	Mapleleaf Viburnum
Dryopteris marginalis (L.) A. Gray	marginal woodfern
Cannabis sativa L.	Marijuana
Matelea carolinensis (Jacq.) Woodson	Maroon Carolina Milkvine
Campanula aparinoides Pursh	marsh bellflower
Viola cucullata Aiton	Marsh Blue Violet
Setaria parviflora (Poir.) Kerguélen	marsh bristlegrass
Gnaphalium uliginosum L.	marsh cudweed
Cyperus pseudovegetus Steud.	Marsh Flatsedge
Stachys palustris L.	Marsh Hedgenettle
Equisetum palustre L.	marsh horsetail
Proserpinaca palustris L.	marsh mermaidweed
Muhlenbergia racemosa "(Michx.) Britton	marsh muhly
Cyclospermum leptophyllum (Pers.) Sprague ex Britton & P. Wilson	marsh parsley
Lathyrus palustris L.	marsh pea
Ludwigia palustris (L.) Elliott	marsh seedbox
Scutellaria galericulata L.	marsh skullcap
Mirabilis jalapa L.	marvel of Peru
Rhexia mariana L.	Maryland meadowbeauty
Polygala mariana Mill.	Maryland milkwort
Sanicula marilandica L.	Maryland Sanicle
Senna marilandica (L.) Link	Maryland senna
Amaranthus blitoides S. Watson	Mat Amaranth
Cenchrus longispinus (Hack.) Fernald	Mat Sandbur
Lycium barbarum L.	matrimony vine
Eleocharis intermedia Schult.	matted spikerush
Chaenomeles japonica (Thunb.) Lindl. ex Spach	Maule's quince
Helianthus maximiliani Schrad.	Maximilian Sunflower
Podophyllum peltatum L.	Mayapple	✓
Asclepias meadii Torr. ex A. Gray	Mead's Milkweed
Carex meadii Dewey	Mead's sedge
Hordeum brachyantherum Nevski	meadow barley
Oenothera pilosella Raf.	Meadow Evening Primrose
Schedonorus pratensis (Huds.) P. Beauv.	meadow fescue
Alopecurus pratensis L.	meadow foxtail
Allium canadense L.	Meadow Garlic
Hieracium caespitosum Dumort.	meadow hawkweed
Equisetum pratense Ehrh.	meadow horsetail
Thaspium trifoliatum (L.) A. Gray	Meadow Parsnip
Lathyrus pratensis L.	meadow pea
Selaginella apoda (L.) Spring	meadow spikemoss
Salix petiolaris Sm.	meadow willow
Corydalis crystallina Engelm.	Mealy Fumewort
Eragrostis barrelieri Daveau	Mediterranean lovegrass
Solanum heterodoxum Dunal	melonleaf nightshade
Amsinckia menziesii (Lehm.) A. Nelson & J.F. Macbr.	Menzies' fiddleneck
Sanvitalia procumbens Lam.	Mexican Creeping Zinnia
Physalis philadelphica Lam.	Mexican Groundcherry
Eragrostis mexicana (Hornem.) Link	Mexican lovegrass
Azolla microphylla Kaulf.	Mexican Mosquito Fern
Muhlenbergia mexicana (L.) Trin.	Mexican Muhly
Prunus mexicana S. Watson	Mexican plum
Argemone mexicana L.	Mexican Pricklypoppy
Dysphania ambrosioides (L.) Mosyakin & Clemants	Mexican Tea
Phacelia purshii Buckley	Miami Mist
Croton michauxii G.L. Webster	Michaux's croton
Leavenworthia uniflora (Michx.) Britton	Michaux's Gladecress
Minuartia michauxii (Fenzl) Farw.	Michaux's stitchwort
Lilium michiganense Farw.	Michigan lily
Erythronium mesochoreum Knerr	Midland Fawnlily
Carex mesochorea Mack.	Midland Sedge
Ipomoea cairica (L.) Sweet	mile a minute vine
Mosla dianthera (Buch.-Ham. ex Roxb.) Maxim.	Miniature Beefsteakplant
Crataegus ×dispessa Ashe	Mink Hawthorn
Lemna perpusilla Torr.	minute duckweed
Ranunculus laxicaulis (Torr. & A. Gray) Darby	Mississippi buttercup
Rudbeckia missouriensis Engelm. ex C.L. Boynt. & Beadle	Missouri Coneflower
Rubus missouricus L.H. Bailey	Missouri Dewberry
Escobaria missouriensis (Sweet) D.R. Hunt	Missouri foxtail cactus
Solidago missouriensis Nutt.	Missouri goldenrod
Ribes missouriense Nutt.	Missouri Gooseberry
Cucurbita foetidissima Kunth	Missouri Gourd
Physalis missouriensis Mack. & Bush	Missouri groundcherry
Vernonia missurica Raf.	Missouri Ironweed
Salix eriocephala Michx.	Missouri River Willow
Carex missouriensis P. Rothr. & Reznicek	Missouri Sedge
Viola missouriensis Greene	Missouri violet
Cypripedium acaule Aiton	Moccasin Flower
Carya tomentosa (Lam.) Nutt.	Mockernut Hickory
Rorippa tenerrima Greene	Modoc yellowcress
Euphorbia lathyris L.	moleplant
Lunaria annua L.	Money Plant	✓
Lonicera morrowii A. Gray	Morrow's Honeysuckle
Scirpus hattorianus Makino	mosquito bulrush
Phlox subulata L.	Moss Phlox
Verbascum blattaria L.	Moth Mullein
Rhododendron canescens (Michx.) Sweet	mountain azalea
Actaea podocarpa DC.	Mountain Bugbane
Ilex montana Torr. & A. Gray ex A. Gray	Mountain Holly
Kalmia latifolia L.	Mountain Laurel
Thalictrum clavatum DC.	Mountain Meadow-Rue
Piptatheropsis pungens "(Torr.) Romasch.	mountain ricegrass
Asplenium montanum Willd.	mountain spleenwort
Arabidopsis thaliana (L.) Heynh.	mouseear cress
Solidago simplex Kunth	Mt. Albert goldenrod
Carex limosa L.	mud sedge
Paspalum dissectum (L.) L.	mudbank crowngrass
Scleria muehlenbergii Steud.	Muehlenberg's nutrush
Carex muehlenbergii Schkuhr ex Willd.	Muhlenberg's sedge
Dasistoma macrophylla (Nutt.) Raf.	Mullein Foxglove
Rosa multiflora Thunb.	Multiflora Rose
Vitis rotundifolia Michx.	muscadine
Malva moschata L.	Musk Mallow
Rosa moschata J. Herrm.	Musk Rose
Carex muskingumensis Schwein.	Muskingum Sedge
Adoxa moschatellina L.	muskroot
Hylodesmum nudiflorum (L.) H.Ohashi & R.R.Mill	Nakedflower Ticktrefoil
Prunus tomentosa Thunb.	Nanking cherry
Viburnum lentago L.	Nannyberry
Saccharum baldwinii Spreng.	narrow plumegrass
Claytonia virginica L.	Narrow-leaved Spring Beauty
Sisyrinchium angustifolium Mill.	narrowleaf blue-eyed grass
Trichostema setaceum Houtt.	Narrowleaf Bluecurls
Typha angustifolia L.	narrowleaf cattail
Echinacea angustifolia DC.	narrowleaf coneflower
Rumex stenophyllus Ledeb.	narrowleaf dock
Oenothera fruticosa L.	Narrowleaf Evening Primrose
Physostegia angustifolia Fernald	narrowleaf false dragonhead
Mirabilis linearis (Pursh) Heimerl	Narrowleaf Four O'clock
Grindelia lanceolata Nutt.	narrowleaf gumweed
Crepis tectorum L.	narrowleaf hawksbeard
Pycnanthemum tenuifolium Schrad.	narrowleaf mountainmint
Leucospora multifida (Michx.) Nutt.	Narrowleaf Paleseed
Lechea tenuifolia Michx.	narrowleaf pinweed
Plantago lanceolata L.	Narrowleaf Plantain
Hosta lancifolia (Thunb.) Engl.	Narrowleaf Plantain Lily
Ludwigia linearis Walter	narrowleaf primrose-willow
Lithospermum incisum Lehm.	narrowleaf stoneseed
Helianthus angustifolius L.	Narrowleaf Sunflower	✓
Verbena simplex Lehm.	Narrowleaf Vervain
Alisma gramineum Lej.	narrowleaf water plantain
Sericocarpus linifolius "(L.) Britton	narrowleaf whitetop aster
Valerianella umbilicata (Sull.) Alph. Wood	navel cornsalad
Carex nebrascensis Dewey	Nebraska sedge
Leavenworthia torulosa A. Gray	Necklace Gladecress
Carex projecta Mack.	necklace sedge
Veronica peregrina L.	neckweed
Rhynchospora capillacea Torr.	needle beaksedge
Eleocharis acicularis (L.) Roem. & Schult.	needle spikerush
Hesperostipa comata (Trin. & Rupr.) Barkworth	Needle-and-Thread Grass
Dichanthelium aciculare (Desv. ex Poir.) Gould & C.A. Clark	needleleaf rosette grass
Carex duriuscula C.A. Mey.	needleleaf sedge
Juncus scirpoides Lam.	needlepod rush
Sisyrinchium mucronatum Michx.	needletip blue-eyed grass
Woodwardia areolata (L.) T. Moore	netted chainfern
Salvia urticifolia L.	Nettleleaf Sage
Symphyotrichum novae-angliae (L.) G.L. Nesom	New England Aster	✓
Ceanothus americanus L.	New Jersey tea
Parathelypteris noveboracensis (L.) Ching	New York Fern
Vernonia noveboracensis (L.) Michx.	New York Ironweed
Silene noctiflora L.	nightflowering silene
Muhlenbergia schreberi J.F. Gmel.	Nimblewill
Hypericum drummondii (Grev. & Hook.) Torr. & A. Gray	nits and lice
Bidens cernua L.	Nodding Beggartick
Cerastium nutans Raf.	nodding chickweed
Oenothera nutans Atk. & Bartlett	nodding evening primrose
Festuca subverticillata (Pers.) Alexeev	nodding fescue
Spiranthes cernua (L.) Rich.	nodding lady's tresses
Muhlenbergia bushii Pohl	Nodding Muhly
Allium cernuum Roth	Nodding Onion
Carduus nutans L.	nodding plumeless thistle
Nabalus crepidineus (Michx.) DC.	Nodding Rattlesnakeroot
Hackelia deflexa (Wahlenb.) Opiz	nodding stickseed
Trillium flexipes Raf.	nodding wakerobin
Najas flexilis (Willd.) Rostk. & Schmidt	Nodding Waternymph
Centaurea diluta Aiton	North African knapweed
Ophioglossum pusillum Raf.	northern adderstongue
Galium boreale L.	northern bedstraw
Iris versicolor L.	Northern Blue Flag
Symphyotrichum boreale (Torr. & A. Gray) Á. Löve & D. Löve	northern bog aster
Viola nephrophylla Greene	northern bog violet
Lycopus uniflorus Michx.	Northern Bugleweed
Diervilla lonicera Mill.	northern bush honeysuckle
Catalpa speciosa (Warder) Warder ex Engelm.	Northern Catalpa
Rubus flagellaris Willd.	Northern Dewberry
Oenothera parviflora L.	northern evening primrose
Platanthera aquilonis Sheviak	northern green orchid
Crataegus dissona Sarg.	northern hawthorn
Adiantum pedatum L.	Northern Maidenhair Fern
Dichanthelium boreale (Nash) Freckmann	northern panicgrass
Quercus rubra L.	Northern Red Oak	✓
Chasmanthium latifolium (Michx.) Yates	Northern Sea Oats
Selaginella rupestris (L.) Spring	northern selaginella
Spiranthes lacera (Raf.) Raf.	Northern Slender Lady's Tresses
Lindera benzoin (L.) Blume	Northern Spicebush	✓
Hymenocallis occidentalis (Leconte) Kunth	northern spiderlily
Claytonia caroliniana Michx.	Northern Spring Beauty
Hierochloe hirta (Schrank) Borbás	Northern Sweetgrass
Alisma triviale Pursh	Northern Water Plantain
Wolffia borealis (Engelm. ex Hegelm.) Landolt ex Landolt & Wildi	northern watermeal
Zizania palustris L.	Northern Wildrice
Viola septentrionalis Greene	Northern Woodland Violet
Carex utriculata Boott	Northwest Territory sedge
Acer platanoides L.	Norway Maple	✓
Potentilla norvegica L.	Norwegian cinquefoil
Bromus nottowayanus Fernald	Nottoway Valley brome
Oenothera nuttallii Sweet	Nuttall's Evening Primrose
Quercus texana Buckley	Nuttall's Oak
Nemastylis nuttallii Pickering ex R.C. Foster	Nuttall's Pleatleaf
Blitum nuttallianum Schult.	Nuttall's Povertyweed
Polytaenia nuttallii DC.	Nuttall's Prairie Parsley
Mimosa nuttallii (DC. ex Britton & Rose) B.L. Turner	Nuttall's sensitive-briar
Helianthus nuttallii Torr. & A. Gray	Nuttall's Sunflower
Desmodium nuttallii (Schindl.) B.G. Schub.	Nuttall's Ticktrefoil
Phoradendron leucarpum (Raf.) Reveal & M.C. Johnst.	Oak Mistletoe
Oenothera oakesiana (A. Gray) J.W. Robbins ex S. Watson & J.M. Coult.	Oakes' Evening Primrose
Physostegia virginiana (L.) Benth.	obedient plant
Diarrhena obovata (Gleason) Brandenburg	Obovate Beakgrain
Phacelia ranunculacea (Nutt.) Constance	Oceanblue Phacelia
Spiranthes ovalis Lindl.	October lady's tresses
Aesculus glabra Willd.	Ohio Buckeye
Oligoneuron ohioense (Frank ex Riddell) G.N. Jones	Ohio goldenrod
Calopogon oklahomensis D.H. Goldman	Oklahoma grasspink
Carex oklahomensis Mack.	Oklahoma Sedge
Rubus alumnus L.H. Bailey	oldfield blackberry
Matelea decipiens (Alexander) Woodson	Oldfield Milkvine
Poa saltuensis Fernald & Wiegand	oldpasture bluegrass
Hydrolea uniflora Raf.	oneflower false fiddleleaf
Cyperus retroflexus Buckley	oneflower flatsedge
Orobanche uniflora L.	oneflowered broomrape
Sicyos angulatus L.	Oneseed Bur Cucumber
Crataegus monogyna Jacq.	oneseed hawthorn
Liatris cylindracea Michx.	Ontario blazing star
Lobelia kalmii L.	Ontario lobelia
Carex conoidea Schkuhr ex Willd.	openfield sedge
Dichanthelium laxiflorum (Lam.) Gould	openflower rosette grass
Abdra aprica (Beadle) Al-Shehbaz, M.Koch & Jordon-Thaden	Openground Draba
Papaver somniferum L.	opium poppy
Acmella repens (Walter) Rich.	Oppositeleaf Spotflower
Rudbeckia fulgida Aiton	Orange Coneflower
Hemerocallis fulva (L.) L.	orange daylily
Buddleja davidii Franch.	orange eye butterflybush
Verbascum phlomoides L.	orange mullein
Triosteum aurantiacum E.P. Bicknell	Orangefruit Horse-gentian
Hypericum gentianoides "(L.) Britton	orangegrass
Dactylis glomerata L.	Orchard Grass
Origanum vulgare L.	Oregano
Celastrus orbiculatus Thunb.	Oriental Bittersweet
Consolida orientalis (J. Gay) Schroedinger	Oriental Knight's-Spur
Persicaria longiseta	Oriental Lady's Thumb
Impatiens glandulifera Royle	ornamental jewelweed
Maclura pomifera (Raf.) C.K. Schneid.	Osage-orange	✓
Matteuccia struthiopteris (L.) Todaro	Ostrich Fern
Carex cephalophora Muhl. ex Willd.	Oval-Headed Sedge
Hydrolea ovata Nutt. ex Choisy	ovate false fiddleleaf
Crataegus ovata Sarg.	Ovateleaf Hawthorn
Quercus lyrata Walter	Overcup Oak	✓
Leucanthemum vulgare Lam.	oxeye daisy
Astragalus distortus Torr. & A. Gray	Ozark milkvetch
Hamamelis vernalis Sarg.	Ozark Witchhazel
Dicentra formosa (Haw.) Walp.	Pacific bleeding heart
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
Alyssum alyssoides (L.) L.	pale madwort
Echinacea pallida (Nutt.) Nutt.	Pale Purple Coneflower
Carex pallescens L.	pale sedge
Persicaria lapathifolia (L.) Delarbre	Pale Smartweed
Hypericum ellipticum Hook.	pale St. Johnswort
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
Betula papyrifera Marshall	Paper Birch	✓
Broussonetia papyrifera (L.) L'Hér. ex Vent.	Paper Mulberry
Malus pumila Mill.	paradise apple
Carex umbellata Schkuhr ex Willd.	Parasol Sedge
Doellingeria umbellata (Mill.) Nees	parasol whitetop
Antennaria parlinii Fernald	Parlin's pussytoes
Myriophyllum aquaticum (Vell.) Verdc.	Parrot Feather Watermilfoil
Crataegus marshallii Eggl.	parsley hawthorn
Chamaecrista fasciculata (Michx.) Greene	Partridge Pea	✓
Mitchella repens L.	Partridgeberry	✓
Heliotropium tenellum (Nutt.) Torr.	pasture heliotrope
Cyperus brevifolioides Thieret & Delahouss.	Pasture Spikesedge
Asimina triloba (L.) Dunal	Pawpaw
Prunus persica (L.) Batsch	Peach
Salix amygdaloides Andersson	peachleaf willow
Arachis hypogaea L.	peanut
Crataegus calpodendron (Ehrh.) Medik.	pear hawthorn
Carya illinoinensis (Wangenh.) K. Koch	Pecan
Cardamine pensylvanica Muhl. ex Willd.	Pennsylvania bittercress
Rubus pensilvanicus Poir.	Pennsylvania Blackberry
Ranunculus pensylvanicus L. f.	Pennsylvania buttercup
Parietaria pensylvanica Muhl. ex Willd.	Pennsylvania Pellitory
Carex pensylvanica Lam.	Pennsylvania sedge
Polygonum pensylvanicum L.	Pennsylvania Smartweed
Mentha ×piperita	Peppermint
Nekemias arborea (L.) J. Wen & Boggan	Peppervine
Lathyrus latifolius L.	perennial pea
Lolium perenne L.	Perennial Ryegrass
Diplotaxis tenuifolia (L.) DC.	perennial wallrocket
Uvularia perfoliata L.	perfoliate bellwort
Desmodium perplexum B.G. Schub.	perplexed ticktrefoil
Lolium persicum Boiss. & Hohen. ex Boiss.	Persian Darnel
Albizia julibrissin Durazz.	Persian Silktree
Cuscuta obtusiflora Kunth	Peruvian dodder
Euphorbia peplus L.	petty spurge
Erigeron philadelphicus L.	Philadelphia Fleabane
Panicum philadelphicum Bernh. ex Trin.	Philadelphia panicgrass
Pontederia cordata L.	Pickerelweed
Stylisma pickeringii (Torr. ex M.A. Curtis) A. Gray	Pickering's dawnflower
Cruciata pedemontana (Bellardi) Ehrend.	piedmont bedstraw
Carya glabra (Mill.) Sweet	Pignut Hickory
Prunus pensylvanica L. f.	Pin Cherry
Quercus palustris Münchh.	Pin Oak	✓
Cyperus retrorsus Chapm.	Pine Barren Flatsedge
Desmodium strictum (Pursh) DC.	pine barren ticktrefoil
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
Aristolochia macrophylla Lam.	Pipevine
Pinus rigida Mill.	Pitch Pine	✓
Mononeuria patula (Michx.) Dillenb. & Kadereit	Pitcher's Stitchwort
Paspalum bifidum (Bertol.) Nash	pitchfork crowngrass
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
Rubus plicatifolius Blanch.	plaitleaf dewberry
Planera aquatica J.F. Gmel.	Planertree
Carex plantaginea Lam.	plantainleaf sedge
Polygonum tenue Michx.	pleatleaf knotweed
Cyperus plukenetii Fernald	Plukenet's Flatsedge
Macleaya cordata (Willd.) R. Br.	Plume Poppy
Crataegus persimilis Sarg.	Plumleaf Hawthorn
Narcissus poeticus L.	poet's narcissus
Conium maculatum L.	Poison Hemlock	✓
Toxicodendron vernix (L.) Kuntze	Poison Sumac
Asclepias exaltata L.	Poke Milkweed
Eragrostis japonica (Thunb.) Trin.	pond lovegrass
Monarda pectinata Nutt.	pony beebalm
Diodia teres Walter	Poorjoe
Cyperus compressus L.	Poorland Flatsedge
Hesperostipa spartea (Trin.) Barkworth	Porcupinegrass
Calamagrostis porteri A. Gray	Porter's Reedgrass
Rubus impar L.H. Bailey	Posey County Blackberry
Viburnum nudum L.	possumhaw
Ilex decidua Walter	Possumhaw
Quercus stellata Wangenh.	Post Oak	✓
Krigia dandelion (L.) Nutt.	potato dwarfdandelion
Bromus sterilis L.	poverty brome
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
Mimosa strigillosa Torr. & A. Gray	powderpuff
Thalia dealbata Fraser ex Roscoe	powdery alligator-flag
Hemionitis artax Christenh.	Powdery False Cloak Fern
Amaranthus powellii S. Watson	Powell's Amaranth
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
Eriochloa contracta Hitchc.	Prairie Cupgrass
Sporobolus heterolepis (A. Gray) A. Gray	Prairie Dropseed
Nothocalais cuspidata (Pursh) Greene	prairie false dandelion
Agalinis heterophylla (Nutt.) Small ex Britton	prairie false foxglove
Phemeranthus rugospermus (Holz.) Kiger	Prairie Fameflower
Erigeron strigosus Muhl. ex Willd.	Prairie Fleabane
Solidago ptarmicoides (Torr. & A.Gray) B.Boivin	Prairie Goldenrod
Physalis pumila var. hispida (Waterf.) J.R.Sullivan	Prairie Groundcherry
Packera plattensis (Nutt.) W.A. Weber & Á. Löve	prairie groundsel
Crataegus pratensis Sarg.	Prairie Hawthorn
Koeleria macrantha (Ledeb.) Schult.	Prairie Junegrass
Asclepias sullivantii Engelm. ex A. Gray	Prairie Milkweed
Penstemon cobaea Nutt.	Prairie Penstemon
Lechea stricta Leggett ex Britton	prairie pinweed
Nemastylis geminiflora Nutt.	Prairie Pleatleaf
Rosa arkansana Porter	prairie rose
Silphium terebinthinaceum Jacq.	Prairie Rosinweed
Calamovilfa longifolia (Hook.) Scribn.	Prairie Sandreed
Carex prairea Dewey ex Alph. Wood	prairie sedge
Rhynchosia latifolia Nutt. ex Torr. & A. Gray	prairie snoutbean
Carex suberecta (Olney) Britton	Prairie Straw Sedge
Helianthus petiolaris Nutt.	Prairie Sunflower
Croton monanthogynus Michx.	Prairie Tea
Aristida oligantha Michx.	Prairie Threeawn
Glandularia bipinnatifida (Nutt.) Nutt.	Prairie Verbena
Viola pedatifida G. Don	prairie violet
Sphenopholis obtusata (Michx.) Scribn.	Prairie Wedgescale
Platanthera leucophaea (Nutt.) Lindl.	Prairie White Fringed Orchid
Salix humilis Marshall	Prairie Willow
Carex atlantica L.H. Bailey	prickly bog sedge
Sida spinosa L.	Prickly Fanpetals
Ceratophyllum muricatum Cham.	prickly hornwort
Lactuca serriola L.	Prickly Lettuce	✓
Salsola tragus L.	prickly Russian thistle
Dodecatheon meadia L.	Pride of Ohio
Viola primulifolia	Primrose-leaf Violet
Amaranthus hypochondriacus L.	Prince-of-Wales feather
Paulownia tomentosa (Thunb.) Siebold & Zucc. ex Steud.	Princess Tree
Polygala incarnata L.	procession flower
Panicum miliaceum L.	proso millet
Viola walteri House	prostrate blue violet
Amaranthus albus L.	Prostrate Pigweed
Desmodium rotundifolium DC.	prostrate ticktrefoil
Carex corrugata Fernald	prune-fruit sedge

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