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3465 Plants Found

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Ordered by scientific name.

Scientific Name	Common Name	†	Map‡
Melia azedarach L.	Chinaberrytree
Melica mutica Walter	twoflower melicgrass
Melica nitens (Scribn.) Nutt. ex Piper	threeflower melicgrass
Melilotus altissimus Thuill.	tall yellow sweetclover
Melilotus officinalis (L.) Lam.	Yellow sweetclover
Melissa officinalis L.	Lemon Balm
Melothria pendula L.	Guadeloupe cucumber
Menispermum canadense L.	common moonseed
Mentha ×piperita L.	Peppermint
Mentha aquatica L.	water mint
Mentha arvensis L.	Wild Mint
Mentha spicata L.	Spearmint
Mentha suaveolens Ehrh.	Apple Mint
Mentzelia decapetala (Pursh ex Sims) Urb. & Gilg ex Gilg	tenpetal blazingstar
Mentzelia nuda (Pursh) Torr. & A. Gray	bractless blazingstar
Menyanthes trifoliata L.	Buckbean
Mercurialis annua L.	annual mercury
Mertensia paniculata (Aiton) G. Don	Tall Bluebells
Mertensia virginica (L.) Pers. ex Link	Virginia Bluebells	✓
Metasequoia glyptostroboides Hu & W.C. Cheng	Dawn Redwood
Micranthes virginiensis (Michx.) Small	Early Saxifrage
Microstegium vimineum (Trin.) A. Camus	Japanese Stiltgrass
Microsteris gracilis (Hook.) Greene	slender phlox
Microthlaspi perfoliatum (L.) F.K. Mey.	claspleaf pennycress
Mikania scandens (L.) Willd.	Climbing Hempvine
Milium effusum L.	American milletgrass
Mimosa nuttallii (DC. ex Britton & Rose) B.L. Turner	Nuttall's sensitive-briar
Mimulus alatus Aiton	sharpwing monkeyflower
Mimulus glabratus Kunth	roundleaf monkeyflower
Mimulus ringens L.	Allegheny monkeyflower
Minuartia dawsonensis (Britton) House	rock stitchwort
Minuartia glabra (Michx.) Mattf.	Appalachian stitchwort
Minuartia michauxii (Fenzl) Farw.	Michaux's stitchwort
Mirabilis albida (Walter) Heimerl	White Four O'clock
Mirabilis jalapa L.	marvel of Peru
Mirabilis linearis (Pursh) Heimerl	Narrowleaf Four O'clock
Mirabilis nyctaginea (Michx.) MacMill.	Heartleaf Four O'Clock
Miscanthus sacchariflorus (Maxim.) Franch.	Amur silvergrass
Miscanthus sinensis Andersson	Chinese silvergrass
Misopates orontium (L.) Raf.	linearleaf snapdragon
Mitchella repens L.	Partridgeberry	✓
Mitella diphylla L.	twoleaf miterwort
Mitella nuda L.	naked miterwort
Moehringia lateriflora (L.) Fenzl	Bluntleaf Sandwort
Mollugo verticillata L.	Green Carpetweed
Monarda bradburiana Beck	eastern beebalm
Monarda citriodora Cerv. ex Lag.	Lemon Beebalm
Monarda clinopodia L.	White Bergamot
Monarda didyma L.	Scarlet Beebalm
Monarda fistulosa L.	Wild Bergamot
Monarda media Willd.	Purple Bergamot
Monarda punctata L.	Spotted Beebalm
Moneses uniflora (L.) A. Gray	Single Delight
Mononeuria patula (Michx.) Dillenb. & Kadereit	Pitcher's Stitchwort
Monotropa hypopitys L.	Pinesap
Monotropa uniflora L.	Ghost Pipe
Morella pensylvanica (Mirb.) Kartesz	Northern Bayberry
Morus alba L.	White Mulberry
Morus nigra L.	Black Mulberry
Morus rubra L.	Red Mulberry
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi	Scratchgrass
Muhlenbergia bushii Pohl	Nodding Muhly
Muhlenbergia cuspidata (Torr. ex Hook.) Rydb.	plains muhly
Muhlenbergia frondosa (Poir.) Fernald	Wirestem Muhly
Muhlenbergia glabrifloris Scribn.	Inland Muhly
Muhlenbergia glomerata (Willd.) Trin.	Spiked Muhly
Muhlenbergia mexicana (L.) Trin.	Mexican Muhly
Muhlenbergia racemosa "(Michx.) Britton	marsh muhly
Muhlenbergia richardsonis (Trin.) Rydb.	mat muhly
Muhlenbergia schreberi J.F. Gmel.	Nimblewill
Muhlenbergia sobolifera (Muhl. ex Willd.) Trin.	rock muhly
Muhlenbergia sylvatica (Torr.) Torr. ex A. Gray	Woodland Muhly
Muhlenbergia tenuiflora	Slimflower Muhly
Muhlenbergia uniflora (Muhl.) Fernald	bog muhly
Mummenhoffia alliacea (L.) Esmailbegi & Al-Shehbaz	Garlic Pennycress
Muscari armeniacum Leichtlin ex Baker	Armenian Grape Hyacinth
Muscari botryoides (L.) Mill.	common grape hyacinth
Muscari comosum (L.) Mill.	Tassel Grape Hyacinth
Muscari neglectum Guss. ex Ten.	starch grape hyacinth
Myosotis arvensis (L.) Hill	field forget-me-not
Myosotis discolor Pers.	changing forget-me-not
Myosotis laxa Lehm.	Bay Forget-me-not
Myosotis macrosperma Engelm.	largeseed forget-me-not
Myosotis scorpioides L.	true forget-me-not
Myosotis stricta Link ex Roem. & Schult.	strict forget-me-not
Myosotis sylvatica Ehrh. ex Hoffm.	Wood Forget-Me-Not
Myosotis verna Nutt.	spring forget-me-not
Myosoton aquaticum (L.) Moench	Giant Chickweed
Myosurus minimus L.	Tiny Mousetail
Myrica gale L.	sweetgale
Myriophyllum alterniflorum DC.	alternateflower watermilfoil
Myriophyllum farwellii Morong	Farwell's watermilfoil
Myriophyllum heterophyllum Michx.	Twoleaf Watermilfoil
Myriophyllum hippuroides Nutt. ex Torr. & A. Gray	western watermilfoil
Myriophyllum humile (Raf.) Morong	low watermilfoil
Myriophyllum pinnatum "(Walter) Britton	cutleaf watermilfoil
Myriophyllum sibiricum Kom.	shortspike watermilfoil
Myriophyllum spicatum L.	Eurasian watermilfoil
Myriophyllum tenellum Bigelow	slender watermilfoil
Myriophyllum verticillatum L.	whorl-leaf watermilfoil
Nabalus albus (L.) Hook.	White Rattlesnakeroot
Nabalus altissimus (L.) Hook.	Tall Rattlesnakeroot
Nabalus asper (Michx.) Torr. & A.Gray	Rough Rattlesnakeroot
Nabalus crepidineus (Michx.) DC.	Nodding Rattlesnakeroot
Nabalus racemosus (Michx.) Hook.	Purple Rattlesnakeroot
Nabalus serpentaria (Pursh) Hook.	Cankerweed
Nabalus trifoliolatus Cass.	Gall of the Earth
Najas flexilis (Willd.) Rostk. & Schmidt	Nodding Waternymph
Najas gracillima (A. Braun ex Engelm.) Magnus	slender waternymph
Najas guadalupensis (Spreng.) Magnus	southern waternymph
Najas marina L.	spiny naiad
Najas minor All.	Brittle Waternymph
Napaea dioica L.	glademallow
Narcissus poeticus L.	poet's narcissus
Narcissus pseudonarcissus L.	daffodil
Nassella trichotoma (Nees) Hack.	Serrated Tussock
Nassella viridula (Trin.) Barkworth	Green Needlegrass
Nasturtium microphyllum Boenn. ex Rchb.	onerow yellowcress
Nasturtium officinale W.T. Aiton	watercress
Nekemias arborea (L.) J. Wen & Boggan	Peppervine
Nelumbo lutea Willd.	American lotus
Nelumbo nucifera Gaertn.	sacred lotus
Nemophila maculata Benth. ex Lindl.	Fivespot
Nemophila phacelioides Nutt.	largeflower baby blue eyes
Nepeta cataria L.	Catnip
Nepeta racemosa Lam.	raceme catnip
Neslia paniculata (L.) Desv.	ballmustard
Nicandra physalodes (L.) Scop.	apple of Peru
Nicotiana alata Link & Otto	jasmine tobacco
Nicotiana glauca Graham	tree tobacco
Nicotiana rustica L.	Aztec tobacco
Nicotiana tabacum L.	cultivated tobacco
Nigella damascena L.	devil in the bush
Nothocalais cuspidata (Pursh) Greene	prairie false dandelion
Nothoscordum bivalve (L.) Britton	crowpoison
Nuphar advena (Aiton) W.T.Aiton	Spatterdock
Nuphar variegata Engelm. ex Durand	Variegated Pond-Lily
Nuttallanthus canadensis (L.) D.A. Sutton	Canada Toadflax
Nymphaea odorata Aiton	American White Waterlily
Nymphoides peltata (S.G. Gmel.) Kuntze	yellow floatingheart
Nyssa sylvatica Marshall	Black Tupelo	✓
Obolaria virginica L.	Virginia Pennywort
Ocimum basilicum L.	sweet basil
Oenanthe aquatica (L.) Poir.	Fineleaf Waterdropwort
Oenanthe javanica (Blume) DC.	Java Waterdropwort
Oenanthe sarmentosa C. Presl ex DC.	water parsely
Oenothera albicaulis Pursh	Whitest Evening Primrose
Oenothera biennis L.	Common Evening Primrose
Oenothera clelandii "W. Dietr.	Cleland's evening primrose
Oenothera curtiflora W.L.Wagner & Hoch	Velvetweed
Oenothera filiformis (Small) W.L. Wagner & Hoch	Longflower Beeblossom
Oenothera filipes (Spach) W.L. Wagner & Hoch	Slenderstalk Beeblossom
Oenothera fruticosa L.	Narrowleaf Evening Primrose
Oenothera gaura W.L. Wagner & Hoch	Biennial Beeblossom
Oenothera glaucifolia W.L.Wagner & Hoch	False Gaura
Oenothera glazioviana Micheli	redsepal evening primrose
Oenothera grandis (Britton) Smyth	showy evening primrose
Oenothera laciniata Hill	Cutleaf Evening Primrose
Oenothera macrocarpa Nutt.	bigfruit evening primrose
Oenothera nutans Atk. & Bartlett	nodding evening primrose
Oenothera nuttallii Sweet	Nuttall's Evening Primrose
Oenothera oakesiana (A. Gray) J.W. Robbins ex S. Watson & J.M. Coult.	Oakes' Evening Primrose
Oenothera parviflora L.	northern evening primrose
Oenothera perennis L.	Little Evening Primrose
Oenothera pilosella Raf.	Meadow Evening Primrose
Oenothera rhombipetala Nutt. ex Torr. & A. Gray	Fourpoint Evening Primrose
Oenothera serrulata Nutt.	Yellow Sundrops
Oenothera speciosa Nutt.	Pink Evening Primrose
Oenothera suffrutescens (Moc. & Sessé ex Ser.) W.L.Wagner & Hoch	Scarlet Beeblossom
Oenothera triloba Nutt.	Stemless Evening Primrose
Oenothera villosa Thunb.	Hairy Evening Primrose
Oligoneuron ohioense (Frank ex Riddell) G.N. Jones	Ohio goldenrod
Onobrychis viciifolia Scop.	sainfoin
Onoclea sensibilis L.	Sensitive Fern
Ononis spinosa L.	Spiny Restharrow
Onopordum acanthium L.	Scotch cottonthistle
Ophioglossum engelmannii Prantl	limestone adderstongue
Ophioglossum pusillum Raf.	northern adderstongue
Ophioglossum vulgatum L.	southern adderstongue
Opuntia fragilis (Nutt.) Haw.	brittle pricklypear
Opuntia humifusa (Raf.) Raf.	Eastern prickly pear
Opuntia macrorhiza Engelm.	twistspine pricklypear
Orbexilum onobrychis (Nutt.) Rydb.	French-grass
Orbexilum pedunculatum (Mill.) Rydb.	Sampson's snakeroot
Origanum vulgare L.	Oregano
Ornithogalum nutans L.	Drooping Star of Bethlehem
Ornithogalum umbellatum L.	Common Star of Bethlehem	✓
Orobanche fasciculata Nutt.	clustered broomrape
Orobanche ludoviciana Nutt.	Louisiana Broomrape
Orobanche riparia L.T. Collins	River Broomrape
Orobanche uniflora L.	oneflowered broomrape
Orthilia secunda (L.) House	sidebells wintergreen
Oryzopsis asperifolia Michx.	roughleaf ricegrass
Osmorhiza berteroi DC.	sweetcicely
Osmorhiza claytonii (Michx.) C.B. Clarke	Clayton's sweetroot
Osmorhiza longistylis (Torr.) DC.	longstyle sweetroot
Osmunda claytoniana L.	interrupted fern
Osmunda spectabilis Willd.	American Royal Fern
Osmundastrum cinnamomeum (L.) C.Presl	Cinnamon Fern
Ostrya virginiana (Mill.) K. Koch	American Hophornbeam
Oxalis corniculata L.	Creeping Woodsorrel
Oxalis dillenii Jacq.	Slender Yellow Woodsorrel
Oxalis grandis Small	Great Yellow Woodsorrel
Oxalis illinoensis Schwegm.	Illinois Woodsorrel
Oxalis montana Raf.	Mountain Woodsorrel
Oxalis stricta L.	Common Yellow Oxalis
Oxalis violacea L.	Violet Woodsorrel
Oxybasis rubra (L.) S.Fuentes, Uotila & Borsch	Red Goosefoot
Oxydendrum arboreum (L.) DC.	Sourwood
Oxypolis rigidior (L.) Raf.	stiff cowbane
Oxytropis campestris (L.) DC.	Field Locoweed
Pachysandra terminalis Siebold & Zucc.	Japanese Pachysandra
Packera anonyma (Alph. Wood) W.A. Weber & Á. Löve	Small's Ragwort
Packera aurea (L.) Á. Löve & D. Löve	Golden Ragwort
Packera glabella (Poir.) C. Jeffrey	Butterweed
Packera obovata (Muhl. ex Willd.) W.A. Weber & Á. Löve	roundleaf ragwort
Packera paupercula (Michx.) Á. Löve & D. Löve	Balsam Groundsel
Packera plattensis (Nutt.) W.A. Weber & Á. Löve	prairie groundsel
Packera pseudaurea (Rydb.) W.A. Weber & Á. Löve	falsegold groundsel
Paeonia lactiflora Pall.	Chinese peony
Panax quinquefolius L.	American ginseng
Panax trifolius L.	dwarf ginseng
Panicum capillare L.	Witchgrass
Panicum dichotomiflorum Michx.	Fall Panicgrass
Panicum flexile (Gattinger) Scribn.	wiry panicgrass
Panicum miliaceum L.	proso millet
Panicum philadelphicum Bernh. ex Trin.	Philadelphia panicgrass
Panicum rigidulum Bosc ex Nees	Redtop Panicgrass
Panicum verrucosum Muhl.	warty panicgrass
Panicum virgatum L.	Switchgrass
Papaver dubium L.	blindeyes
Papaver orientale L.	Oriental poppy
Papaver rhoeas L.	corn poppy
Papaver somniferum L.	opium poppy
Parapholis incurva (L.) C.E. Hubbard	Curved Sicklegrass
Parathelypteris noveboracensis (L.) Ching	New York Fern
Parietaria floridana Nutt.	Florida Pellitory
Parietaria judaica L.	spreading pellitory
Parietaria pensylvanica Muhl. ex Willd.	Pennsylvania Pellitory
Parnassia glauca Raf.	fen grass of Parnassus
Parogonum ciliinode (Michx.) Desjardins & J.P.Bailey	Fringed Black Bindweed
Paronychia canadensis (L.) Alph. Wood	smooth forked nailwort
Paronychia fastigiata (Raf.) Fernald	hairy forked nailwort
Parthenium hysterophorus L.	Santa Maria Feverfew
Parthenium integrifolium L.	Wild Quinine
Parthenocissus quinquefolia (L.) Planch.	Virginia Creeper
Parthenocissus tricuspidata (Siebold & Zucc.) Planch.	Japanese Creeper
Parthenocissus vitacea (Knerr) Hitchc.	Woodbine
Pascopyrum smithii (Rydb.) Á. Löve	Western Wheatgrass
Paspalum floridanum Michx.	Florida paspalum
Paspalum laeve Michx.	Field Paspalum
Paspalum pubiflorum Rupr. ex Fourn.	hairyseed paspalum
Paspalum racemosum Lam.	Peruvian Paspalum
Paspalum repens P.J.Bergius	Horsetail Paspalum
Paspalum setaceum Michx.	thin paspalum
Passiflora incarnata L.	purple passionflower
Passiflora lutea L.	yellow passionflower
Pastinaca sativa L.	Wild Parsnip
Patis racemosa "(Sm.) Romasch.	blackseed ricegrass
Paulownia tomentosa (Thunb.) Siebold & Zucc. ex Steud.	Princess Tree
Paxistima canbyi A. Gray	Canby's Mountain-Lover
Pedicularis canadensis L.	Canadian lousewort
Pedicularis lanceolata Michx.	Swamp Lousewort
Pediomelum argophyllum (Pursh) J. Grimes	silverleaf Indian breadroot
Pediomelum esculentum (Pursh) Rydb.	large Indian breadroot
Pediomelum tenuiflorum (Pursh) A.N.Egan	Slimflower Scurfpea
Pellaea atropurpurea (L.) Link	Purple Cliffbrake
Pellaea glabella Mett. ex Kuhn	smooth cliffbrake
Peltandra virginica (L.) Schott	green arrow arum
Pennisetum villosum R. Br. ex Fresen.	feathertop
Penstemon alluviorum Pennell	Lowland Beardtongue
Penstemon bradburyi Pursh	Large-flowered Beardtongue
Penstemon calycosus Small	Longsepal Beardtongue
Penstemon canescens (Britton) Britton	Eastern Gray Beardtongue
Penstemon cobaea Nutt.	Prairie Penstemon
Penstemon deamii Pennell	Deam's Beardtongue
Penstemon digitalis Nutt. ex Sims	Foxglove Beardtongue
Penstemon gracilis Nutt.	Lilac Penstemon
Penstemon hirsutus (L.) Willd.	hairy beardtongue
Penstemon laevigatus Aiton	Eastern Smooth Beardtongue
Penstemon pallidus Small	Pale Beardtongue
Penstemon tubaeflorus Nutt.	White Wand Beardtongue
Pentanema salicinum (L.) D.Gut.Larr., Santos-Vicente, Anderb., E.Rico & M.M.Mart.Ort.	Willowleaf Yellowhead
Penthorum sedoides L.	ditch stonecrop
Perideridia americana (Nutt. ex DC.) Rchb.	Eastern Yampah
Perilla frutescens (L.) Britton	Beefsteak Plant
Persicaria amphibia (L.) Delarbre	Water Knotweed
Persicaria arifolia (L.) Haraldson	Halberdleaf Tearthumb
Persicaria careyi (Olney) Greene	Carey's Smartweed
Persicaria hydropiper (L.) Delarbre	Marshpepper Knotweed
Persicaria hydropiperoides (Michx.) Small	Swamp Smartweed
Persicaria lapathifolia (L.) Delarbre	Pale Smartweed
Persicaria longiseta	Oriental Lady's Thumb
Persicaria maculosa Gray	Spotted Ladysthumb
Persicaria orientalis (L.) Spach	Kiss Me Over The Garden Gate
Persicaria punctata (Elliott) Small	Dotted Smartweed
Persicaria robustior (Small) E.P.Bicknell	Stout Smartweed
Persicaria sagittata (L.) H.Gross	Arrowleaf Tearthumb
Persicaria setacea (Baldwin) Small	Bog Smartweed
Persicaria virginiana L.	Jumpseed
Petasites frigidus (L.) Fr.	arctic sweet coltsfoot
Petasites hybridus (L.) G. Gaertn., B. Mey. & Scherb.	Pestilence Wort
Petrorhagia saxifraga (L.) Link	saxifrage pink
Petroselinum crispum (Mill.) Nyman ex A.W. Hill	Parsley
Petunia ×atkinsiana (Sweet) D.Don ex W.H.Baxter	Hybrid Petunia
Petunia axillaris "(Lam.) Britton	large white petunia
Phacelia bipinnatifida Michx.	Fernleaf Phacelia
Phacelia dubia (L.) Trel.	smallflower phacelia
Phacelia purshii Buckley	Miami Mist
Phalaris arundinacea L.	Reed Canary Grass
Phalaris canariensis L.	Annual Canarygrass
Phaseolus coccineus L.	Scarlet Runner
Phaseolus polystachios	Thicket Bean
Phaseolus vulgaris L.	kidney bean
Phedimus spurius (M. Bieb.) 't Hart	Caucasian stonecrop
Phegopteris connectilis (Michx.) Watt	long beechfern
Phegopteris hexagonoptera (Michx.) Fée	broad beechfern
Phellodendron amurense Rupr.	Amur Corktree
Phemeranthus rugospermus (Holz.) Kiger	Prairie Fameflower
Philadelphus coronarius L.	sweet mock orange
Philadelphus inodorus L.	Scentless Mock Orange
Philadelphus pubescens Loisel.	Hoary Mock Orange
Philadelphus tomentosus Royle	Fuzzy Mock Orange
Phleum pratense L.	Timothy
Phlox amplifolia Britton	Largeleaf Phlox
Phlox bifida Beck	cleft phlox
Phlox divaricata L.	wild blue phlox
Phlox drummondii Hook.	Annual Phlox
Phlox glaberrima L.	Smooth Phlox
Phlox maculata L.	Wild Sweetwilliam
Phlox ovata L.	Wideflower Phlox
Phlox paniculata L.	Fall Phlox
Phlox pilosa L.	Downy Phlox
Phlox stolonifera Sims	Creeping Phlox
Phlox subulata L.	Moss Phlox
Phoradendron leucarpum (Raf.) Reveal & M.C. Johnst.	Oak Mistletoe
Phragmites australis (Cav.) Trin. ex Steud.	Eurasian Common Reed
Phryma leptostachya L.	American lopseed
Phyla cuneifolia (Torr.) Greene	wedgeleaf
Phyla lanceolata (Michx.) Greene	Lanceleaf Fogfruit
Phyllanthus caroliniensis Walter	Carolina leaf-flower
Phyllanthus tenellus Roxb.	Mascarene Island leaf-flower
Physalis angulata L.	Cutleaf Groundcherry
Physalis grisea (Waterf.) M. Martínez	Strawberry-Tomato
Physalis heterophylla Nees	Clammy Groundcherry
Physalis longifolia Nutt.	Longleaf Groundcherry
Physalis philadelphica Lam.	Mexican Groundcherry
Physalis pubescens L.	Husk Tomato
Physalis pumila Nutt.	Dwarf Groundcherry
Physalis pumila var. hispida (Waterf.) J.R.Sullivan	Prairie Groundcherry
Physalis virginiana Mill.	Virginia groundcherry
Physaria ludoviciana (Nutt.) O'Kane & Al-Shehbaz	Foothill Bladderpod
Physocarpus opulifolius	Common Ninebark
Physostegia angustifolia Fernald	narrowleaf false dragonhead
Physostegia parviflora Nutt. ex A. Gray	Western False Dragonhead
Physostegia virginiana (L.) Benth.	obedient plant
Phytolacca americana L.	American Pokeweed	✓
Phytolacca icosandra L.	Tropical Pokeweed
Picea abies (L.) Karst.	Norway Spruce	✓
Picea glauca (Moench) Voss	White Spruce	✓
Picea mariana	Black Spruce	✓
Picris hieracioides L.	Hawkweed Oxtongue
Pilea fontana (Lunell) Rydb.	Black-fruited Clearweed
Pilea pumila (L.) A. Gray	Canadian Clearweed
Pilosella aurantiaca (L.) F.W.Schultz & Sch.Bip.	Fox-and-Cubs
Pilosella piloselloides (Vill.) Soják	Tall Hawkweed
Pimpinella anisum L.	Anise Burnet Saxifrage
Pimpinella saxifraga L.	solidstem burnet saxifrage
Pinellia ternata (Thunb.) Makino ex Breitenbach	Crowdipper
Pinus banksiana Lamb.	Jack Pine
Pinus echinata Mill.	Shortleaf Pine	✓
Pinus mugo Turra	mugo pine
Pinus nigra Arnold	Austrian Pine
Pinus pungens Lamb.	Table Mountain Pine	✓
Pinus resinosa Aiton	Red Pine	✓
Pinus rigida Mill.	Pitch Pine	✓
Pinus strobus L.	Eastern White Pine	✓
Pinus sylvestris L.	Scots Pine	✓
Pinus virginiana Mill.	Virginia Pine
Piptatheropsis pungens "(Torr.) Romasch.	mountain ricegrass
Piptochaetium avenaceum (L.) Parodi	blackseed speargrass
Pistia stratiotes L.	Water Lettuce
Pisum sativum L.	Garden Pea
Pityopsis graminifolia (Michx.) Nutt.	narrowleaf silkgrass
Planodes virginicum (L.) Greene	Virginia Winged Rockcress
Plantago arenaria Waldst. & Kit.	sand plantain
Plantago aristata Michx.	Largebracted Plantain
Plantago cordata Lam.	heartleaf plantain
Plantago lanceolata L.	Narrowleaf Plantain
Plantago major L.	Common Plantain
Plantago media L.	hoary plantain
Plantago patagonica Jacq.	Woolly Plantain
Plantago pusilla Nutt.	Dwarf Plantain
Plantago rugelii Decne.	Blackseed Plantain
Plantago virginica L.	Virginia Plantain
Platanthera aquilonis Sheviak	northern green orchid
Platanthera blephariglottis (Willd.) Lindl.	white fringed orchid
Platanthera ciliaris (L.) Lindl.	yellow fringed orchid
Platanthera clavellata (Michx.) Luer	small green wood orchid
Platanthera flava (L.) Lindl.	palegreen orchid
Platanthera grandiflora (Bigelow) Lindl.	greater purple fringed orchid
Platanthera hookeri (Torr. ex A. Gray) Lindl.	Hooker's orchid
Platanthera huronensis (Nutt.) Lindl.	Huron green orchid
Platanthera lacera (Michx.) G. Don	Green Fringed Orchid
Platanthera leucophaea (Nutt.) Lindl.	Prairie White Fringed Orchid
Platanthera macrophylla (Goldie) P.M. Brown	greater roundleaved orchid
Platanthera obtusata (Banks ex Pursh) Lindl.	bluntleaved orchid
Platanthera orbiculata (Pursh) Lindl.	lesser roundleaved orchid
Platanthera psycodes (L.) Lindl.	Lesser Purple Fringed Orchid
Platanus occidentalis L.	American Sycamore	✓
Plectocephalus americanus (Nutt.) D.Don	American Star-thistle
Pleopeltis polypodioides (L.) Andrews & Windham	resurrection fern
Pluchea camphorata (L.) DC.	camphor pluchea
Pluchea odorata (L.) Cass.	sweetscent
Poa alsodes A. Gray	grove bluegrass
Poa annua L.	annual bluegrass
Poa arachnifera Torr.	Texas Bluegrass
Poa arida Vasey	Plains Bluegrass
Poa autumnalis Muhl. ex Elliott	autumn bluegrass
Poa bulbosa L.	bulbous bluegrass
Poa chapmaniana Scribn.	Chapman's Bluegrass
Poa compressa L.	Canada bluegrass
Poa cuspidata Nutt.	Early Bluegrass
Poa nemoralis L.	Wood Bluegrass
Poa paludigena Fernald & Wiegand	bog bluegrass
Poa palustris L.	Fowl Bluegrass
Poa saltuensis Fernald & Wiegand	oldpasture bluegrass
Poa sylvestris A. Gray	woodland bluegrass
Poa trivialis L.	Rough Bluegrass
Poa wolfii Scribn.	Wolf's bluegrass
Podophyllum peltatum L.	Mayapple	✓
Podostemum ceratophyllum Michx.	Hornleaf Riverweed
Pogonia ophioglossoides (L.) Ker Gawl.	snakemouth orchid
Polanisia dodecandra (L.) DC.	redwhisker clammyweed
Polanisia jamesii (Torr. & A. Gray) Iltis	James' clammyweed
Polemonium reptans L.	Jacob's Ladder
Polygaloides paucifolia (Willd.) J.R.Abbott	Gaywings
Polygonatum biflorum (Walter) Elliott	Smooth Solomon's Seal
Polygonatum pubescens (Willd.) Pursh	hairy Solomon's seal
Polygonum achoreum S.F. Blake	leathery knotweed
Polygonum erectum L.	Erect Knotweed
Polygonum pensylvanicum L.	Pennsylvania Smartweed
Polygonum ramosissimum Michx.	Bushy Knotweed
Polygonum tenue Michx.	pleatleaf knotweed
Polymnia canadensis L.	whiteflower leafcup
Polypodium appalachianum Haufler & Windham	Appalachian polypody
Polypodium virginianum L.	rock polypody
Polypogon interruptus Kunth	ditch rabbitsfoot grass
Polypogon monspeliensis (L.) Desf.	annual rabbitsfoot grass
Polystichum acrostichoides (Michx.) Schott	Christmas fern
Polystichum braunii (Spenner) Fée	Braun's hollyfern
Polytaenia nuttallii DC.	Nuttall's Prairie Parsley
Pontederia cordata L.	Pickerelweed
Pontederia crassipes Mart.	Common Water Hyacinth
Populus ×jackii	Balm-of-Gilead
Populus alba L.	White Poplar
Populus balsamifera L.	Balsam Poplar
Populus deltoides W. Bartram ex Marshall	Eastern Cottonwood
Populus grandidentata Michx.	Large-tooth Aspen
Populus heterophylla L.	Swamp Cottonwood
Populus nigra L.	Lombardy poplar
Populus tremuloides Michx.	Quaking Aspen
Portulaca grandiflora Hook.	Rose Moss
Portulaca oleracea L.	Common Purslane
Potamogeton alpinus Balbis	alpine pondweed
Potamogeton amplifolius Tuck.	largeleaf pondweed
Potamogeton bicupulatus Fernald	snailseed pondweed
Potamogeton crispus L.	Curly Pondweed
Potamogeton diversifolius Raf.	waterthread pondweed
Potamogeton epihydrus Raf.	ribbonleaf pondweed
Potamogeton foliosus Raf.	Leafy Pondweed
Potamogeton friesii Rupr.	Fries' pondweed
Potamogeton gramineus L.	variableleaf pondweed
Potamogeton illinoensis Morong	Illinois Pondweed
Potamogeton natans L.	floating pondweed
Potamogeton nodosus Poir.	longleaf pondweed
Potamogeton oakesianus J.W. Robbins	Oakes' pondweed
Potamogeton perfoliatus L.	claspingleaf pondweed
Potamogeton praelongus Wulfen	whitestem pondweed
Potamogeton pulcher Tuck.	spotted pondweed
Potamogeton pusillus L.	small pondweed
Potamogeton richardsonii (Benn.) Rydb.	Richardson's pondweed
Potamogeton robbinsii Oakes	Robbins' Pondweed
Potamogeton spirillus Tuck.	spiral pondweed
Potamogeton strictifolius Benn.	narrowleaf pondweed
Potamogeton tennesseensis Fernald	Tennessee Pondweed
Potamogeton vaseyi J.W. Robbins	Vasey's pondweed
Potamogeton zosteriformis Fernald	flatstem pondweed
Potentilla argentea L.	silver cinquefoil
Potentilla bipinnatifida Douglas ex Hook.	tansy cinquefoil
Potentilla canadensis L.	dwarf cinquefoil
Potentilla inclinata Vill.	ashy cinquefoil
Potentilla intermedia L.	downy cinquefoil
Potentilla norvegica L.	Rough Cinquefoil
Potentilla pensylvanica L.	Pennsylvania cinquefoil
Potentilla recta L.	sulphur cinquefoil
Potentilla reptans L.	creeping cinquefoil
Potentilla rivalis Nutt.	Brook Cinquefoil
Potentilla simplex Michx.	common cinquefoil
Potentilla supina L.	Paradox Cinquefoil

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