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199 records
Scientific Common Family
Pachysandra procumbens allegheny-spurge Buxaceae
Packera glabella butterweed Asteraceae
Packera obovata roundleaf ragwort Asteraceae
Packera tomentosa woolly groundsel Asteraceae
Palafoxia callosa small palafoxia Asteraceae
Palafoxia texana texas palafox Asteraceae
Pancratium maritimum carolina spider-lily Liliaceae
Panicum amarum bitter panicgrass Poaceae
Panicum brachyanthum prairie panicgrass Poaceae
Panicum capillare witchgrass Poaceae
Panicum dichotomiflorum fall panicum Poaceae
Panicum hemitomon maidencane Poaceae
Panicum repens torpedo grass Poaceae
Panicum verrucosum warty panicgrass Poaceae
Panicum virgatum old switch panic grass Poaceae
Parapholis incurva curved sicklegrass Poaceae
Parentucellia viscosa yellow glandweed Scrophulariaceae
Parietaria pensylvanica pennsylvania pellitory Urticaceae
Parkinsonia aculeata jerusalem thorn Fabaceae
Parnassia grandifolia largeleaf grass of parnassus Saxifragaceae
Paronychia drummondii drummond's nailwort Caryophyllaceae
Paronychia erecta squareflower Caryophyllaceae
Parthenium hysterophorus false ragweed Asteraceae
Parthenium integrifolium wild quinine Asteraceae
Parthenocissus quinquefolia virginia-creeper Vitaceae
Paspalidium geminatum egyptian panicgrass Poaceae
Paspalum bifidum pitchfork crowngrass Poaceae
Paspalum denticulatum longtom Poaceae
Paspalum dilatatum dallisgrass Poaceae
Paspalum distichum knotgrass Poaceae
Paspalum floridanum florida paspalum Poaceae
Paspalum langei rustyseed paspalum Poaceae
Paspalum modestum water paspalum Poaceae
Paspalum monostachyum gulfdune paspalum Poaceae
Paspalum notatum common bahiagrass Poaceae
Paspalum plicatulum brownseed paspalum Poaceae
Paspalum praecox early paspalum Poaceae
Paspalum pubiflorum hairyseed paspalum Poaceae
Paspalum repens horsetail paspalum Poaceae
Paspalum setaceum thin paspalum Poaceae
Paspalum urvillei vaseygrass Poaceae
Paspalum vaginatum seashore paspalum Poaceae
Passiflora incarnata purple passion-flower Passifloraceae
Passiflora lutea yellow passionflower Passifloraceae
Pastinaca sativa wild parsnip Apiaceae
Paulownia tomentosa princesstree Scrophulariaceae
Pedicularis canadensis canadian louse-wort Scrophulariaceae
Pediomelum digitatum palmleaf indian breadroot Fabaceae
Pediomelum rhombifolium gulf indian breadroot Fabaceae
Peltandra sagittifolia white arrow arum Araceae
Peltandra virginica green arrow-arum Araceae
Penstemon digitalis foxglove beardtongue Scrophulariaceae
Penstemon laxiflorus muskogee beardtongue Scrophulariaceae
Penstemon murrayanus scarlet beardtongue Scrophulariaceae
Penstemon tenuis gulf coast penstemon Scrophulariaceae
Penstemon tubaeflorus white wand beardtongue Scrophulariaceae
Penthorum sedoides ditch stonecrop Crassulaceae
Perilla frutescens beefsteakplant Lamiaceae
Persea borbonia red bay Lauraceae
Persea palustris swamp bay Lauraceae
Persicaria arifolium halberdleaf tearthumb Polygonaceae
Persicaria glabra denseflower knotweed Polygonaceae
Persicaria hydropiper marshpepper knotweed Polygonaceae
Persicaria hydropiperoides swamp smartweed Polygonaceae
Persicaria lapathifolia curlytop knotweed Polygonaceae
Persicaria maculosa spotted ladysthumb Polygonaceae
Persicaria punctata dotted smartweed Polygonaceae
Persicaria setacea bog smartweed Polygonaceae
Persicaria virginiana jumpseed Polygonaceae
Phacelia glabra smooth phacelia Hydrophyllaceae
Phacelia strictiflora prairie phacelia Hydrophyllaceae
Phalaris angusta timothy canarygrass Poaceae
Phalaris caroliniana carolina canary grass Poaceae
Phanopyrum gymnocarpon cottonmouth grass Poaceae
Phaseolus polystachios thicket bean Fabaceae
Phemeranthus parviflorus sunbright Portulacaceae
Phlox cuspidata pointed phlox Polemoniaceae
Phlox divaricata wild blue phlox Polemoniaceae
Phlox drummondii annual phlox Polemoniaceae
Phlox paniculata fall phlox Polemoniaceae
Phlox pilosa downy phlox Polemoniaceae
Phlox subulata moss phlox Polemoniaceae
Phoradendron serotinum ssp. serotinum oak mistletoe Viscaceae
Phoradendron serotinum ssp. tomentosum christmas mistletoe Viscaceae
Phragmites australis common reed Poaceae
Phryma leptostachya american lopseed Verbenaceae
Phyla lanceolata lanceleaf fogfruit Verbenaceae
Phyla nodiflora common frogfruit Verbenaceae
Phyllanthus evanescens birdseed leaf-flower Euphorbiaceae
Phyllanthus urinaria leaf flower Euphorbiaceae
Physalis angulata cut-leaf ground-cherry Solanaceae
Physalis angustifolia coastal groundcherry Solanaceae
Physalis cinerascens smallflower groundcherry Solanaceae
Physalis pubescens downy ground-cherry Solanaceae
Physalis virginiana virginia groundcherry Solanaceae
Physostegia angustifolia narrowleaf false dragonhead Lamiaceae
Physostegia correllii correll's false dragonhead Lamiaceae
Physostegia digitalis finger false dragonhead Lamiaceae
Physostegia intermedia slender false dragonhead Lamiaceae
Physostegia longisepala longsepal false dragonhead Lamiaceae
Physostegia virginiana obedient plant Lamiaceae
Phytolacca americana polkweed Phytolaccaceae
Pilea pumila canadian clearweed Urticaceae
Pinguicula lutea yellow butterwort Lentibulariaceae
Pinguicula pumila small butterwort Lentibulariaceae
Pinus echinata shortleaf pine Pinaceae
Pinus elliottii slash pine Pinaceae
Pinus glabra spruce pine Pinaceae
Pinus palustris long-leaf pine Pinaceae
Pinus taeda loblolly pine Pinaceae
Pinus virginiana virginia pine Pinaceae
Piptochaetium avenaceum blackseed speargrass Poaceae
Pistia stratiotes water lettuce Araceae
Pityopsis graminifolia silkgrass Asteraceae
Planera aquatica planertree Ulmaceae
Plantago aristata bracted plantain Plantaginaceae
Plantago lanceolata buckhorn plantain Plantaginaceae
Plantago major broadleaf plantain Plantaginaceae
Plantago patagonica woolly plantain Plantaginaceae
Plantago virginica pale-seed plantain Plantaginaceae
Platanthera blephariglottis white fringed orchid Orchidaceae
Platanthera ciliaris yellow fringed orchid Orchidaceae
Platanthera flava palegreen orchid Orchidaceae
Platanus occidentalis american sycamore Platanaceae
Platythelys querceticola jug orchid Orchidaceae
Pleopeltis polypodioides resurrection fern Polypodiaceae
Pluchea baccharis rosy camphor-weed Asteraceae
Pluchea camphorata salt-marsh camphor-weed Asteraceae
Pluchea foetida stinking camphorweed Asteraceae
Pluchea odorata sweetscent Asteraceae
Poa annua annual bluegrass Poaceae
Poa autumnalis autumn bluegrass Poaceae
Poa pratensis kentucky bluegrass Poaceae
Podophyllum peltatum mayapple Berberidaceae
Pogonia ophioglossoides snakemouth orchid Orchidaceae
Pogonia ophioglossoides var. brachypogon snakemouth orchid Orchidaceae
Polanisia dodecandra redwhisker clammyweed Capparaceae
Polanisia erosa large clammyweed Capparaceae
Polygala crenata scalloped milkwort Polygalaceae
Polygala cruciata cross-leaf milkwort Polygalaceae
Polygala cymosa tall pinebarren milkwort Polygalaceae
Polygala grandiflora showy milkwort Polygalaceae
Polygala incarnata pink milkwort Polygalaceae
Polygala leptocaulis swamp milkwort Polygalaceae
Polygala lutea orange milkwort Polygalaceae
Polygala mariana maryland milkwort Polygalaceae
Polygala nana dwarf milkwort Polygalaceae
Polygala polygama racemed milkwort Polygalaceae
Polygala ramosa low pinebarren milkwort Polygalaceae
Polygala verticillata whorled milkwort Polygalaceae
Polygonatum biflorum smooth solomon's seal Liliaceae
Polygonella americana southern jointweed Polygonaceae
Polygonella polygama october flower Polygonaceae
Polypogon monspeliensis annual rabbitsfoot grass Poaceae
Polypremum procumbens juniper-leaf Buddlejaceae
Polystichum acrostichoides christmas fern Dryopteridaceae
Polytaenia nuttallii nuttall's prairie parsley Apiaceae
Poncirus trifoliata hardy orange Rutaceae
Pontederia cordata pickerelweed Pontederiaceae
Ponthieva racemosa hairy shadow witch Orchidaceae
Populus alba white poplar Salicaceae
Populus deltoides eastern cottonwood Salicaceae
Populus heterophylla swamp cottonwood Salicaceae
Populus nigra lombardy poplar Salicaceae
Portulaca oleracea little hogweed Portulacaceae
Portulaca pilosa kiss me quick Portulacaceae
Potamogeton crispus curly pondweed Potamogetonaceae
Potamogeton nodosus longleaf pondweed Potamogetonaceae
Potentilla recta sulphur cinquefoil Rosaceae
Prenanthes barbata barbed rattlesnakeroot Asteraceae
Proserpinaca palustris marsh mermaidweed Haloragaceae
Proserpinaca pectinata combleaf mermaidweed Haloragaceae
Prosopis glandulosa honey mesquite Fabaceae
Prunella vulgaris heal-all Lamiaceae
Prunus americana american plum Rosaceae
Prunus angustifolia chickasaw plum Rosaceae
Prunus caroliniana carolina laurelcherry Rosaceae
Prunus mexicana mexican plum Rosaceae
Prunus serotina black cherry Rosaceae
Prunus umbellata hog plum Rosaceae
Pseudognaphalium helleri heller's cudweed Asteraceae
Pseudognaphalium obtusifolium rabbit-tobacco Asteraceae
Ptelea trifoliata common hoptree Rutaceae
Pteridium aquilinum bracken fern Dennstaedtiaceae
Pterocaulon virgatum wand black root Asteraceae
Pteroglossaspis ecristata wild coco Orchidaceae
Ptilimnium capillaceum herbwilliam Apiaceae
Ptilimnium costatum ribbed mock bishop-weed Apiaceae
Ptilimnium nuttallii laceflower Apiaceae
Pueraria montana kudzu Fabaceae
Punica granatum pomegranate Punicaceae
Pycnanthemum albescens white mountain-mint Lamiaceae
Pycnanthemum muticum blue mountain-mint Lamiaceae
Pycnanthemum tenuifolium slender mountain-mint Lamiaceae
Pyracantha coccinea scarlet firethorn Rosaceae
Pyrrhopappus carolinianus false dandelion Asteraceae
Pyrrhopappus pauciflorus smallflower desert-chicory Asteraceae
Pyrus calleryana callery pear Rosaceae
Pyrus communis common pear Rosaceae