Packera cana --- woolly groundsel
Packera crocata --- saffron ragwort
Packera cymbalarioides --- cleftleaf groundsel
Packera debilis --- weak groundsel
Packera dimorphophylla --- splitleaf groundsel
Packera dimorphophylla ssp. dimorphophylla --- splitleaf groundsel
Packera dimorphophylla var. paysonii --- Payson's groundsel
Packera fendleri --- Fendler's ragwort
Packera indecora --- elegant groundsel
Packera multilobata --- lobeleaf groundsel
Packera pauciflora --- alpine groundsel
Packera paupercula --- balsam groundsel
Packera plattensis --- prairie groundsel
Packera porteri --- Porter's groundsel
Packera pseudaurea --- falsegold groundsel
Packera pseudaurea var. flavula --- falsegold groundsel
Packera pseudaurea var. pseudaurea --- falsegold groundsel
Packera streptanthifolia --- Rocky Mountain groundsel
Packera tridenticulata --- threetooth ragwort
Packera werneriifolia --- hoary groundsel
Paeonia brownii --- Brown's peony
Palafoxia rosea --- rosy palafox
Palafoxia rosea var. macrolepis --- rosy palafox
Panicum capillare --- witchgrass
Panicum miliaceum --- broomcorn millet
Panicum miliaceum ssp. miliaceum --- broomcorn millet
Panicum virgatum --- switchgrass
Panicum virgatum var. virgatum --- switchgrass
Papaver radicatum --- rooted poppy
Papaver radicatum ssp. kluanense --- rooted poppy
Parietaria pensylvanica --- Pennsylvania pellitory
Parnassia fimbriata --- fringed grass of Parnassus
Parnassia fimbriata var. fimbriata --- fringed grass of Parnassus
Parnassia kotzebuei --- Kotzebue's grass of Parnassus
Parnassia palustris --- marsh grass of Parnassus
Parnassia palustris var. montanensis --- mountain grass of Parnassus
Parnassia palustris var. parviflora --- smallflower grass of Parnassus
Parnassia palustris var. tenuis --- marsh grass of Parnassus
Paronychia depressa --- spreading nailwort
Paronychia jamesii --- James' nailwort
Paronychia pulvinata --- Rocky Mountain nailwort
Paronychia sessiliflora --- creeping nailwort
Parrya nudicaulis --- nakedstem wallflower
Parthenium alpinum --- alpine feverfew
Parthenocissus vitacea --- woodbine
Pascopyrum smithii --- western wheatgrass
Pastinaca sativa --- wild parsnip
Paxistima myrsinites --- Oregon boxleaf
Pectis angustifolia --- lemonscent
Pectis angustifolia var. angustifolia --- narrowleaf pectis
Pectocarya penicillata --- sleeping combseed
Pedicularis bracteosa --- bracted lousewort
Pedicularis bracteosa var. paysoniana --- Payson's lousewort
Pedicularis contorta --- coiled lousewort
Pedicularis contorta var. contorta --- coiled lousewort
Pedicularis contorta var. ctenophora --- coiled lousewort
Pedicularis crenulata --- meadow lousewort
Pedicularis cystopteridifolia --- fernleaved pedicularis
Pedicularis groenlandica --- elephanthead lousewort
Pedicularis oederi --- Oeder's lousewort
Pedicularis parryi --- Parry's lousewort
Pedicularis parryi ssp. mogollonica --- Mogollon lousewort
Pedicularis parryi ssp. parryi --- Parry's lousewort
Pedicularis parryi ssp. purpurea --- Rocky Mountain lousewort
Pedicularis procera --- giant lousewort
Pedicularis pulchella --- mountain lousewort
Pedicularis racemosa --- sickletop lousewort
Pedicularis racemosa ssp. alba --- sickletop lousewort
Pedicularis sudetica --- sudetic lousewort
Pedicularis sudetica ssp. scopulorum --- sudetic lousewort
Pediocactus simpsonii --- Simpson hedgehog cactus
Pediocactus simpsonii var. minor --- snowball cactus
Pediocactus simpsonii var. simpsonii --- Simpson hedgehog cactus
Pediomelum argophyllum --- silverleaf Indian breadroot
Pediomelum digitatum --- palmleaf Indian breadroot
Pediomelum esculentum --- large Indian breadroot
Pediomelum hypogaeum --- subterranean Indian breadroot
Pediomelum hypogaeum var. hypogaeum --- subterranean Indian breadroot
Pediomelum linearifolium --- narrowleaf Indian breadroot
Pellaea atropurpurea --- purple cliffbrake
Pellaea breweri --- Brewer's cliffbrake
Pellaea gastonyi --- Gastony's cliffbrake
Pellaea glabella --- smooth cliffbrake
Pellaea glabella ssp. occidentalis --- western dwarf cliffbrake
Pellaea glabella ssp. simplex --- smooth cliffbrake
Pennisetum glaucum --- pearl millet
Penstemon absarokensis --- Absaroka Range beardtongue
Penstemon acaulis --- stemless beardtongue
Penstemon albidus --- white penstemon
Penstemon ambiguus --- gilia beardtongue
Penstemon ambiguus var. laevissimus --- pink plains beardtongue
Penstemon angustifolius --- broadbeard beardtongue
Penstemon angustifolius var. angustifolius --- broadbeard beardtongue
Penstemon angustifolius var. caudatus --- broadbeard beardtongue
Penstemon arenicola --- sand penstemon
Penstemon aridus --- stiffleaf penstemon
Penstemon attenuatus --- sulphur penstemon
Penstemon attenuatus var. pseudoprocerus --- small penstemon
Penstemon caespitosus --- mat penstemon
Penstemon caespitosus var. caespitosus --- mat penstemon
Penstemon caryi --- Cary's beardtongue
Penstemon cyananthus --- Wasatch beardtongue
Penstemon cyananthus var. cyananthus --- Wasatch beardtongue
Penstemon cyananthus var. subglaber --- Wasatch beardtongue
Penstemon cyaneus --- blue penstemon
Penstemon cyathophorus --- sagebrush beardtongue
Penstemon deustus --- scabland penstemon
Penstemon deustus var. deustus --- scabland penstemon
Penstemon ellipticus --- rocky ledge penstemon
Penstemon eriantherus --- fuzzytongue penstemon
Penstemon eriantherus var. cleburnei --- Cleburn's penstemon
Penstemon eriantherus var. eriantherus --- fuzzytongue penstemon
Penstemon fremontii --- Fremont's beardtongue
Penstemon fremontii var. fremontii --- Fremont's beardtongue
Penstemon fruticosus --- bush penstemon
Penstemon fruticosus var. fruticosus --- bush penstemon
Penstemon gibbensii --- Gibbens' beardtongue
Penstemon glaber --- sawsepal penstemon
Penstemon glaber var. alpinus --- alpine sawsepal penstemon
Penstemon glaber var. glaber --- sawsepal penstemon
Penstemon gracilis --- lilac penstemon
Penstemon gracilis var. gracilis --- lilac penstemon
Penstemon grandiflorus --- large beardtongue
Penstemon humilis --- low beardtongue
Penstemon humilis ssp. humilis --- low beardtongue
Penstemon laricifolius --- larchleaf beardtongue
Penstemon laricifolius ssp. exilifolius --- larchleaf beardtongue
Penstemon laricifolius ssp. laricifolius --- larchleaf beardtongue
Penstemon montanus --- cordroot beardtongue
Penstemon montanus var. montanus --- cordroot beardtongue
Penstemon nitidus --- waxleaf penstemon
Penstemon nitidus var. nitidus --- waxleaf penstemon
Penstemon pachyphyllus --- thickleaf beardtongue
Penstemon pachyphyllus var. mucronatus --- mucronate penstemon
Penstemon paysoniorum --- Payson's beardtongue
Penstemon procerus --- littleflower penstemon
Penstemon procerus var. procerus --- pincushion beardtongue
Penstemon radicosus --- matroot penstemon
Penstemon rydbergii --- Rydberg's penstemon
Penstemon rydbergii var. aggregatus --- meadow beardtongue
Penstemon rydbergii var. rydbergii --- swollen penstemon
Penstemon saxosorum --- upland beardtongue
Penstemon scariosus --- White River beardtongue
Penstemon scariosus var. garrettii --- Garrett's beardtongue
Penstemon secundiflorus --- sidebells penstemon
Penstemon strictus --- Rocky Mountain penstemon
Penstemon subglaber --- smooth penstemon
Penstemon unilateralis --- oneside penstemon
Penstemon virens --- Front Range beardtongue
Penstemon watsonii --- Watson's penstemon
Penstemon whippleanus --- Whipple's penstemon
Perideridia bolanderi --- Bolander's yampah
Perideridia bolanderi ssp. bolanderi --- Bolander's yampah
Perideridia gairdneri --- Gardner's yampah
Perideridia gairdneri ssp. borealis --- common yampah
Petasites sagittatus --- arrowleaf sweet coltsfoot
Petradoria pumila --- grassy rockgoldenrod
Petradoria pumila ssp. pumila --- grassy rockgoldenrod
Petrophyton caespitosum --- mat rockspirea
Petrophyton caespitosum var. caespitosum --- mat rockspirea
Phacelia alba --- white phacelia
Phacelia demissa --- Intermountain phacelia
Phacelia demissa var. demissa --- Intermountain phacelia
Phacelia denticulata --- Rocky Mountain phacelia
Phacelia franklinii --- Franklin's phacelia
Phacelia glandulifera --- sticky phacelia
Phacelia glandulosa --- glandular phacelia
Phacelia glandulosa var. deserta --- glandular phacelia
Phacelia glandulosa var. glandulosa --- glandular phacelia
Phacelia hastata --- silverleaf phacelia
Phacelia hastata var. hastata --- silverleaf phacelia
Phacelia heterophylla --- varileaf phacelia
Phacelia heterophylla ssp. heterophylla --- varileaf phacelia
Phacelia heterophylla ssp. virgata --- varileaf phacelia
Phacelia incana --- hoary phacelia
Phacelia ivesiana --- Ives' phacelia
Phacelia ivesiana var. ivesiana --- Ives' phacelia
Phacelia linearis --- threadleaf phacelia
Phacelia salina --- Bitter Creek phacelia
Phacelia scopulina --- Debeque phacelia
Phacelia scopulina var. scopulina --- Debeque phacelia
Phacelia sericea --- silky phacelia
Phacelia sericea ssp. ciliosa --- silky phacelia
Phacelia sericea ssp. sericea --- silky phacelia
Phacelia tetramera --- fourpart phacelia
Phalaris arundinacea --- reed canarygrass
Phalaris canariensis --- annual canarygrass
Philadelphus occidentalis --- western mock orange
Philadelphus occidentalis var. occidentalis --- western mock orange
Philadelphus pubescens --- hoary mock orange
Philadelphus pubescens var. pubescens --- hoary mock orange
Phippsia algida --- icegrass
Phleum alpinum --- alpine timothy
Phleum pratense --- timothy
Phlox albomarginata --- whitemargin phlox
Phlox albomarginata ssp. albomarginata --- whitemargin phlox
Phlox alyssifolia --- alyssumleaf phlox
Phlox alyssifolia ssp. alyssifolia --- alyssumleaf phlox
Phlox andicola --- prairie phlox
Phlox andicola ssp. andicola --- prairie phlox
Phlox andicola ssp. parvula --- prairie phlox
Phlox caespitosa --- tufted phlox
Phlox diffusa --- spreading phlox
Phlox diffusa ssp. scleranthifolia --- spreading phlox
Phlox diffusa ssp. subcarinata --- spreading phlox
Phlox gracilis --- slender phlox
Phlox gracilis ssp. gracilis --- slender phlox
Phlox gracilis ssp. humilis --- slender phlox
Phlox hoodii --- spiny phlox
Phlox hoodii ssp. canescens --- carpet phlox
Phlox hoodii ssp. glabrata --- carpet phlox
Phlox hoodii ssp. hoodii --- spiny phlox
Phlox hoodii ssp. muscoides --- musk phlox
Phlox hoodii ssp. viscidula --- carpet phlox
Phlox kelseyi --- Kelsey's phlox
Phlox kelseyi ssp. kelseyi --- Kelsey's phlox
Phlox longifolia --- longleaf phlox
Phlox longifolia ssp. longifolia --- longleaf phlox
Phlox multiflora --- flowery phlox
Phlox multiflora ssp. depressa --- Rocky Mountain phlox
Phlox multiflora ssp. multiflora --- flowery phlox
Phlox multiflora ssp. patula --- Rocky Mountain phlox
Phlox opalensis --- opal phlox
Phlox pulvinata --- cushion phlox
Phlox pungens --- prickly phlox
Phlox variabilis --- variegated phlox
Phlox variabilis ssp. variabilis --- variegated phlox
Phlox viridis --- green phlox
Phlox viridis ssp. compacta --- green phlox
Phragmites australis --- common reed
Phryma leptostachya --- American lopseed
Phyla cuneifolia --- wedgeleaf
Phyllodoce empetriformis --- pink mountainheath
Phyllodoce glanduliflora --- yellow mountainheath
Phyllodoce ×intermedia
Physalis hederifolia --- ivyleaf groundcherry
Physalis hederifolia var. comata --- ivyleaf groundcherry
Physalis heterophylla --- clammy groundcherry
Physalis heterophylla var. heterophylla --- clammy groundcherry
Physalis hispida --- prairie groundcherry
Physalis longifolia --- longleaf groundcherry
Physalis longifolia var. longifolia --- longleaf groundcherry
Physalis virginiana --- Virginia groundcherry
Physalis virginiana var. virginiana --- Virginia groundcherry
Physaria acutifolia --- sharpleaf twinpod
Physaria acutifolia var. acutifolia --- sharpleaf twinpod
Physaria brassicoides --- double twinpod
Physaria condensata --- tufted twinpod
Physaria didymocarpa --- common twinpod
Physaria didymocarpa var. didymocarpa --- common twinpod
Physaria didymocarpa var. lanata --- common twinpod
Physaria dornii --- Tunp Range twinpod
Physaria eburniflora --- Devils Gate twinpod
Physaria integrifolia --- Snake River twinpod
Physaria integrifolia var. integrifolia --- Snake River twinpod
Physaria integrifolia var. monticola --- Snake River twinpod
Physaria saximontana --- Fremont County twinpod
Physaria saximontana var. saximontana --- Fremont County twinpod
Physaria vitulifera --- roundtip twinpod
Physocarpus alternans --- dwarf ninebark
Physocarpus alternans ssp. alternans --- dwarf ninebark
Physocarpus malvaceus --- mallow ninebark
Physocarpus monogynus --- mountain ninebark
Physostegia parviflora --- western false dragonhead
Picea engelmannii --- Engelmann spruce
Picea glauca --- white spruce
Picea pungens --- blue spruce
Picradeniopsis --- bahia
Picradeniopsis oppositifolia --- oppositeleaf bahia
Picrothamnus --- bud sagebrush
Picrothamnus desertorum --- bud sagebrush
Pinus albicaulis --- whitebark pine
Pinus contorta --- lodgepole pine
Pinus contorta var. latifolia --- tall lodgepole pine
Pinus edulis --- twoneedle pinyon
Pinus flexilis --- limber pine
Pinus ponderosa --- ponderosa pine
Pinus ponderosa var. scopulorum --- ponderosa pine
Piperia unalascensis --- slender-spire orchid
Piptatherum exiguum --- little ricegrass
Piptatherum micranthum --- littleseed ricegrass
Piptatherum pungens --- mountain ricegrass
Plagiobothrys leptocladus --- finebranched popcornflower
Plagiobothrys scouleri --- Scouler's popcornflower
Plagiobothrys scouleri var. hispidulus --- sleeping popcornflower
Plantago elongata --- prairie plantain
Plantago elongata ssp. elongata --- prairie plantain
Plantago eriopoda --- redwool plantain
Plantago lanceolata --- narrowleaf plantain
Plantago major --- common plantain
Plantago patagonica --- woolly plantain
Plantago tweedyi --- Tweedy's plantain
Platanthera dilatata --- scentbottle
Platanthera dilatata var. albiflora --- scentbottle
Platanthera dilatata var. dilatata --- scentbottle
Platanthera hyperborea --- northern green orchid
Platanthera hyperborea var. gracilis --- lax-flowered green orchid
Platanthera hyperborea var. hyperborea --- northern green orchid
Platanthera leucostachys --- Sierra bog orchid
Platanthera obtusata --- bluntleaved orchid
Platanthera stricta --- slender bog orchid
Platyschkuhria --- basindaisy
Platyschkuhria integrifolia --- basindaisy
Platyschkuhria integrifolia var. integrifolia --- basindaisy
Pleuraphis jamesii --- James' galleta
Poa abbreviata --- short bluegrass
Poa abbreviata ssp. pattersonii --- Patterson's bluegrass
Poa alpina --- alpine bluegrass
Poa annua --- annual bluegrass
Poa arctica --- arctic bluegrass
Poa arctica ssp. arctica --- arctic bluegrass
Poa arctica ssp. grayana --- arctic bluegrass
Poa arida --- plains bluegrass
Poa bulbosa --- bulbous bluegrass
Poa compressa --- Canada bluegrass
Poa cusickii --- Cusick's bluegrass
Poa cusickii ssp. epilis --- Cusick's bluegrass
Poa cusickii ssp. pallida --- Cusick's bluegrass
Poa fendleriana --- muttongrass
Poa fendleriana ssp. fendleriana --- muttongrass
Poa fendleriana ssp. longiligula --- muttongrass
Poa glauca --- glaucous bluegrass
Poa glauca ssp. glauca --- glaucous bluegrass
Poa glauca ssp. rupicola --- timberline bluegrass
Poa laxa --- Mt. Washington bluegrass
Poa laxa ssp. banffiana --- Banff bluegrass
Poa leptocoma --- marsh bluegrass
Poa lettermanii --- Letterman's bluegrass
Poa ×nematophylla
Poa nemoralis --- wood bluegrass
Poa nemoralis ssp. interior --- inland bluegrass
Poa palustris --- fowl bluegrass
Poa pratensis --- Kentucky bluegrass
Poa pratensis ssp. pratensis --- Kentucky bluegrass
Poa reflexa --- nodding bluegrass
Poa secunda --- Sandberg bluegrass
Poa trivialis --- rough bluegrass
Poa wheeleri --- Wheeler's bluegrass
Polanisia dodecandra --- redwhisker clammyweed
Polanisia dodecandra ssp. dodecandra --- redwhisker clammyweed
Polanisia dodecandra ssp. trachysperma --- sandyseed clammyweed
Polemonium brandegeei --- Brandegee's Jacob's-ladder
Polemonium foliosissimum --- towering Jacob's-ladder
Polemonium foliosissimum var. alpinum --- alpine Jacob's-ladder
Polemonium micranthum --- annual polemonium
Polemonium occidentale --- western polemonium
Polemonium occidentale ssp. occidentale --- western polemonium
Polemonium pulcherrimum --- Jacob's-ladder
Polemonium pulcherrimum ssp. delicatum --- Jacob's-ladder
Polemonium pulcherrimum ssp. pulcherrimum --- Jacob's-ladder
Polemonium viscosum --- sticky polemonium
Polygala alba --- white milkwort
Polygala senega --- Seneca snakeroot
Polygala verticillata --- whorled milkwort
Polygala verticillata var. isocycla --- whorled milkwort
Polygonatum biflorum --- smooth Solomon's seal
Polygonatum biflorum var. commutatum --- smooth Solomon's seal
Polygonum achoreum --- leathery knotweed
Polygonum amphibium --- water knotweed
Polygonum amphibium var. emersum --- longroot smartweed
Polygonum amphibium var. stipulaceum --- water smartweed
Polygonum arenastrum --- oval-leaf knotweed
Polygonum aviculare --- prostrate knotweed
Polygonum bistortoides --- American bistort
Polygonum buxiforme --- box knotweed
Polygonum convolvulus --- black bindweed
Polygonum convolvulus var. convolvulus --- black bindweed
Polygonum douglasii --- Douglas' knotweed
Polygonum douglasii ssp. austiniae --- Austin knotweed
Polygonum douglasii ssp. douglasii --- Douglas' knotweed
Polygonum douglasii ssp. engelmannii --- Engelmann's knotweed
Polygonum douglasii ssp. johnstonii --- Johnston's knotweed
Polygonum douglasii ssp. majus --- large knotweed
Polygonum douglasii ssp. spergulariiforme --- scatter knotweed
Polygonum erectum --- erect knotweed
Polygonum hydropiper --- marshpepper knotweed
Polygonum lapathifolium --- curlytop knotweed
Polygonum minimum --- broadleaf knotweed
Polygonum pensylvanicum --- Pennsylvania smartweed
Polygonum persicaria --- spotted ladysthumb
Polygonum polygaloides --- milkwort knotweed
Polygonum polygaloides ssp. confertiflorum --- fruitleaf knotweed
Polygonum polygaloides ssp. kelloggii --- Kellogg's knotweed
Polygonum punctatum --- dotted smartweed
Polygonum punctatum var. confertiflorum --- dotted smartweed
Polygonum ramosissimum --- bushy knotweed
Polygonum ramosissimum var. prolificum --- bushy knotweed
Polygonum ramosissimum var. ramosissimum --- bushy knotweed
Polygonum scandens --- climbing false buckwheat
Polygonum scandens var. scandens --- climbing false buckwheat
Polygonum tenue --- pleatleaf knotweed
Polygonum viviparum --- alpine bistort
Polypodium hesperium --- western polypody
Polypodium saximontanum --- Rocky Mountain polypody
Polypogon monspeliensis --- annual rabbitsfoot grass
Polypogon viridis --- beardless rabbitsfoot grass
Polystichum lonchitis --- northern hollyfern
Polystichum scopulinum --- mountain hollyfern
Populus ×acuminata --- lanceleaf cottonwood
Populus alba --- white poplar
Populus angustifolia --- narrowleaf cottonwood
Populus balsamifera --- balsam poplar
Populus balsamifera ssp. balsamifera --- balsam poplar
Populus balsamifera ssp. trichocarpa --- black cottonwood
Populus ×brayshawii --- hybrid balsam poplar
Populus ×canadensis --- Carolina poplar
Populus deltoides --- eastern cottonwood
Populus deltoides ssp. monilifera --- plains cottonwood
Populus deltoides ssp. wislizeni --- Rio Grande cottonwood
Populus ×jackii --- balm-of-Gilead
Populus nigra --- Lombardy poplar
Populus tremuloides --- quaking aspen
Porterella carnosula --- fleshy porterella
Portulaca oleracea --- little hogweed
Potamogeton alpinus --- alpine pondweed
Potamogeton amplifolius --- largeleaf pondweed
Potamogeton crispus --- curly pondweed
Potamogeton diversifolius --- waterthread pondweed
Potamogeton epihydrus --- ribbonleaf pondweed
Potamogeton foliosus --- leafy pondweed
Potamogeton foliosus ssp. fibrillosus --- leafy pondweed
Potamogeton foliosus ssp. foliosus --- leafy pondweed
Potamogeton friesii --- Fries' pondweed
Potamogeton gramineus --- variableleaf pondweed
Potamogeton illinoensis --- Illinois pondweed
Potamogeton natans --- floating pondweed
Potamogeton nodosus --- longleaf pondweed
Potamogeton obtusifolius --- bluntleaf pondweed
Potamogeton praelongus --- whitestem pondweed
Potamogeton pusillus --- small pondweed
Potamogeton pusillus ssp. pusillus --- small pondweed
Potamogeton pusillus ssp. tenuissimus --- small pondweed
Potamogeton richardsonii --- Richardson's pondweed
Potamogeton robbinsii --- Robbins' pondweed
Potamogeton strictifolius --- narrowleaf pondweed
Potamogeton zosteriformis --- flatstem pondweed
Potentilla ambigens --- silkyleaf cinquefoil
Potentilla argentea --- silver cinquefoil
Potentilla argentea var. argentea --- silver cinquefoil
Potentilla arguta --- tall cinquefoil
Potentilla arguta ssp. arguta --- tall cinquefoil
Potentilla arguta ssp. convallaria --- cream cinquefoil
Potentilla biennis --- biennial cinquefoil
Potentilla bipinnatifida --- tansy cinquefoil
Potentilla brevifolia --- sparseleaf cinquefoil
Potentilla concinna --- elegant cinquefoil
Potentilla concinna var. bicrenata --- elegant cinquefoil
Potentilla concinna var. concinna --- elegant cinquefoil
Potentilla diversifolia --- varileaf cinquefoil
Potentilla diversifolia var. diversifolia --- varileaf cinquefoil
Potentilla diversifolia var. perdissecta --- mountainmeadow cinquefoil
Potentilla effusa --- branched cinquefoil
Potentilla fissa --- bigflower cinquefoil
Potentilla flabellifolia --- high mountain cinquefoil
Potentilla glandulosa --- sticky cinquefoil
Potentilla glandulosa ssp. glabrata --- sticky cinquefoil
Potentilla glandulosa ssp. micropetala --- smallpetal cinquefoil
Potentilla glandulosa ssp. pseudorupestris --- sticky cinquefoil
Potentilla gracilis --- slender cinquefoil
Potentilla gracilis var. brunnescens --- slender cinquefoil
Potentilla gracilis var. fastigiata --- slender cinquefoil
Potentilla gracilis var. flabelliformis --- slender cinquefoil
Potentilla hippiana --- woolly cinquefoil
Potentilla hippiana var. hippiana --- woolly cinquefoil
Potentilla hookeriana --- Hooker's cinquefoil
Potentilla hookeriana ssp. hookeriana --- Hooker's cinquefoil
Potentilla multisecta --- featherleaf cinquefoil
Potentilla nana --- arctic cinquefoil
Potentilla nivea --- snow cinquefoil
Potentilla nivea var. pentaphylla --- fiveleaf cinquefoil
Potentilla norvegica --- Norwegian cinquefoil
Potentilla norvegica ssp. monspeliensis --- Norwegian cinquefoil
Potentilla ovina --- sheep cinquefoil
Potentilla ovina var. decurrens --- sheep cinquefoil
Potentilla ovina var. ovina --- sheep cinquefoil
Potentilla paradoxa --- Paradox cinquefoil
Potentilla pectinisecta --- combleaf cinquefoil
Potentilla pensylvanica --- Pennsylvania cinquefoil
Potentilla pensylvanica var. pensylvanica --- Pennsylvania cinquefoil
Potentilla plattensis --- Platte River cinquefoil
Potentilla pulcherrima --- beautiful cinquefoil
Potentilla recta --- sulphur cinquefoil
Potentilla rivalis --- brook cinquefoil
Potentilla rivalis var. millegrana --- brook cinquefoil
Potentilla rubricaulis --- Rocky Mountain cinquefoil
Potentilla subjuga --- Colorado cinquefoil
Potentilla uniflora --- oneflower cinquefoil
Prenanthes racemosa --- purple rattlesnakeroot
Prenanthes racemosa ssp. multiflora --- purple rattlesnakeroot
Primula egaliksensis --- Greenland primrose
Primula incana --- silvery primrose
Primula parryi --- Parry's primrose
Proboscidea louisianica --- ram's horn
Proboscidea louisianica ssp. louisianica --- ram's horn
Prunella vulgaris --- common selfheal
Prunella vulgaris ssp. lanceolata --- lance selfheal
Prunella vulgaris ssp. vulgaris --- common selfheal
Prunus americana --- American plum
Prunus emarginata --- bitter cherry
Prunus emarginata var. emarginata --- bitter cherry
Prunus pensylvanica --- pin cherry
Prunus pensylvanica var. pensylvanica --- pin cherry
Prunus pensylvanica var. saximontana --- pin cherry
Prunus pumila --- sandcherry
Prunus pumila var. besseyi --- western sandcherry
Prunus virginiana --- chokecherry
Prunus virginiana var. melanocarpa --- black chokecherry
Psathyrostachys juncea --- Russian wildrye
×Pseudelymus --- foxtail wheatgrass
×Pseudelymus saxicola --- foxtail wheatgrass
Pseudocymopterus --- false springparsley
Pseudocymopterus montanus --- alpine false springparsley
Pseudognaphalium canescens --- Wright's cudweed
Pseudognaphalium canescens ssp. thermale --- Wright's cudweed
Pseudognaphalium macounii --- Macoun's cudweed
Pseudognaphalium stramineum --- cottonbatting plant
Pseudoroegneria spicata --- bluebunch wheatgrass
Pseudoroegneria spicata ssp. inermis --- beardless wheatgrass
Pseudoroegneria spicata ssp. spicata --- bluebunch wheatgrass
Pseudostellaria jamesiana --- tuber starwort
Pseudotsuga menziesii --- Douglas-fir
Pseudotsuga menziesii var. glauca --- Rocky Mountain Douglas-fir
Psilocarphus brevissimus --- short woollyheads
Psilocarphus brevissimus var. brevissimus --- short woollyheads
Psoralidium lanceolatum --- lemon scurfpea
Psoralidium tenuiflorum --- slimflower scurfpea
Pteridium aquilinum --- western brackenfern
Pteridium aquilinum var. pubescens --- hairy brackenfern
Pterospora andromedea --- woodland pinedrops
Pteryxia hendersonii --- Henderson's wavewing
Pteryxia terebinthina --- turpentine wavewing
Pteryxia terebinthina var. albiflora --- turpentine wavewing
Puccinellia distans --- weeping alkaligrass
Puccinellia distans ssp. distans --- weeping alkaligrass
Puccinellia lemmonii --- Lemmon's alkaligrass
Puccinellia lucida --- shining alkaligrass
Puccinellia nuttalliana --- Nuttall's alkaligrass
Pulsatilla patens --- American pasqueflower
Pulsatilla patens ssp. multifida --- cutleaf anemone
Purshia tridentata --- antelope bitterbrush
Pyrola asarifolia --- liverleaf wintergreen
Pyrola asarifolia ssp. asarifolia --- liverleaf wintergreen
Pyrola chlorantha --- greenflowered wintergreen
Pyrola elliptica --- waxflower shinleaf
Pyrola minor --- snowline wintergreen
Pyrola picta --- whiteveined wintergreen
Pyrrocoma carthamoides --- largeflower goldenweed
Pyrrocoma carthamoides var. subsquarrosa --- largeflower goldenweed
Pyrrocoma clementis --- tranquil goldenweed
Pyrrocoma clementis var. clementis --- tranquil goldenweed
Pyrrocoma clementis var. villosa --- tranquil goldenweed
Pyrrocoma crocea --- curlyhead goldenweed
Pyrrocoma crocea var. crocea --- curlyhead goldenweed
Pyrrocoma integrifolia --- manysted goldenweed
Pyrrocoma lanceolata --- lanceleaf goldenweed
Pyrrocoma lanceolata var. lanceolata --- lanceleaf goldenweed
Pyrrocoma uniflora --- plantain goldenweed
Pyrrocoma uniflora var. uniflora --- plantain goldenweed

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