Names beginning with P: paint, paintbrush, paiuteweed, pampas grass, Panaeolus, Panellus, panicgrass, panicum, pansy, panthercap, Panus, parachute, paradise plant, parasol, parchment, parsley, parsley-fern, parsley-piert, parsnip, partridgefoot, pasqueflower, pathfinder, pax, Paxillus, pea, pea-rock, peach, pear, pearlflower, pearlwort, peashrub, peavine, pectocarya, pellitory, pencils, penny, pennycress, pennyroyal, penstemon, peony, pepper, peppergrass, peppermint, pepperweed, pepperwort, periwinkle, pestle, phacelia, Phaeocollybia, pheasant's-eye, Phellodon, Phlebia, phlox, Pholiota, pickerel-weed, pickleweed, pig's-ear, pig's-ears, pigeonberry, piggyback, piggyback-plant, pigweed, pillwort, pimpernel, pimple, pincushion, pincushion-plant, pine, pine spike, pine-spike, pinedrops, pinefoot, pinegrass, pinesap, pink, pink fairies, pinkgill, pinky, pinwheel, pipsissewa, pitcher-plant, pitchfork, plains mustard, plane-tree, plant, plantain, plectritis, plum, plumeless thistle, plums-and-custard, Pluteus, podfern, poison, poison hemlock, poison ivy, poison-ivy, poison-oak, poison-pie, poison-vetch, poisonpie, pokeberry, pokeweed, polemonium, polypody, polypore, pondweed, popcorn-flower, poplar, poppy, poque, porcini, porecrust, potato, povertyweed, powder-cap, powdercap, prairie coneflower, prairie sage, prairie star, prairie-clover, prairie-crocus, pricklegrass, prickly-pear, prickly-poppy, pricklypear cactus, primrose, primrose-willow, prince, prince's-pine, princess tree, privet, professor-weed, prunes-and-custard, Psathyrella, psilocybe, puddingberry, puff-ball, puffball, puffbowl, puncture-bract, purples, purslane, pussy-toes, pussypaws, pussytoes, pygmyleaf, pygmyweed, pyrola
Paint
Indian paint (Blitum capitatum) – 12 photos
Paintbrush
acute paintbrush (Castilleja hispida var. acuta) – 23 photos
attenuate paintbrush (Castilleja attenuata) – 40 photos
Chambers's Indian paintbrush (Castilleja chambersii) – 3 photos
cliff paintbrush (Castilleja rupicola) – 34 photos
coast paintbrush (Castilleja litoralis) – 10 photos
common paintbrush (Castilleja miniata) – 64 photos
Cusick's paintbrush (Castilleja cusickii) – 24 photos
deer paintbrush (Castilleja cervina) – 9 photos
Dixon's paintbrush (Castilleja miniata var. dixonii) – 21 photos
Elmer's paintbrush (Castilleja elmeri) – 60 photos
frosted paintbrush (Castilleja pruinosa) – 5 photos
golden paintbrush (Castilleja levisecta) – 35 photos
harsh paintbrush (Castilleja hispida) – 37 photos
harsh paintbrush (Castilleja hispida var. acuta) – 23 photos
harsh paintbrush (Castilleja hispida var. hispida) – 65 photos
magenta paintbrush (Castilleja parviflora var. oreopola) – 50 photos
mountain Indian paintbrush (Castilleja parviflora var. albida) – 38 photos
northwestern paintbrush (Castilleja angustifolia) – 5 photos
obscure paintbrush (Castilleja cryptantha) – 39 photos
Olympic paintbrush (Castilleja parviflora var. olympica) – 26 photos
Pacific paintbrush (Castilleja litoralis) – 10 photos
paintbrush (Castilleja) – 1 photo
pruinose paintbrush (Castilleja pruinosa) – 5 photos
rhexia-leaved paintbrush (Castilleja rhexiifolia) – 13 photos
salt-marsh paintbrush (Castilleja ambigua var. ambigua) – 21 photos
scarlet paintbrush (Castilleja miniata) – 64 photos
scarlet paintbrush (Castilleja miniata var. miniata) – 44 photos
seep paintbrush (Castilleja minor var. exilis) – 25 photos
small-flowered paintbrush (Castilleja parviflora) – 7 photos
Suksdorf's paintbrush (Castilleja suksdorfii) – 21 photos
thin paintbrush (Castilleja tenuis) – 49 photos
Thompson's paintbrush (Castilleja thompsonii) – 97 photos
Victoria's paintbrush (Castilleja victoriae) – 7 photos
yellow paintbrush (Castilleja lutescens) – 18 photos
Paiuteweed
paiuteweed (Suaeda calceoliformis) – 23 photos
Pampas grass
pampas grass (Cortaderia selloana) – 11 photos
purple pampas grass (Cortaderia jubata) – 16 photos
Panaeolus
belted Panaeolus (Panaeolus subbalteatus) – 3 photos
haymaker's Panaeolus (Panaeolina foenisecii (Panaeolus)) – 2 photos
ringed Panaeolus (Panaeolus semiovatus) – 4 photos
Panellus
luminescent Panellus (Panellus stipticus) – 4 photos
Panicgrass
common panicgrass (Panicum capillare ssp. capillare) – 22 photos
hairy panicgrass (Dichanthelium acuminatum ssp. fasciculatum) – 11 photos
Panicum
fall panicum (Panicum dichotomiflorum) – 6 photos
fall panicum (Panicum dichotomiflorum ssp. dichotomiflorum) – 14 photos
Pansy
desert pansy (Viola trinervata) – 87 photos
European field pansy (Viola arvensis) – 17 photos
Panthercap
panthercap (Amanita pantherina) – 12 photos
Panus
hairy Panus (Lentinus strigosus) – 4 photos
ruddy Panus (Lentinus strigosus) – 4 photos
Parachute
horsehair parachute (Marasmius androsaceus) – 1 photo
leaf parachute (Marasmius epiphyllus) – 2 photos
Paradise plant
paradise plant (Daphne mezereum) – 1 photo
Parasol
brown-eyed parasol (Lepiota cristata) – 4 photos
flaming parasol (Lepiota flammeotincta) – 1 photo
flower pot parasol (Leucocoprinus birnbaumii) – 3 photos
Japanese parasol (Parasola plicatilis) – 4 photos
onion-stalk parasol (Leucocoprinus cepistipes) – 2 photos
red-eyed parasol (Leucoagaricus rubrotinctus) – 5 photos
red-tinged parasol (Leucoagaricus rubrotinctus) – 5 photos
saffron parasol (Cystoderma amianthinum) – 8 photos
shaggy parasol (Chlorophyllum brunneum) – 6 photos
shaggy-stalked parasol (Lepiota clypeolaria) – 4 photos
smooth parasol (Leucoagaricus leucothites) – 10 photos
stinking parasol (Lepiota cristata) – 4 photos
yellow parasol (Leucocoprinus birnbaumii) – 3 photos
Parchment
bleeding conifer parchment (Stereum sanguinolentum cf.) – 1 photo
hairy parchment (Stereum hirsutum) – 14 photos
Parsley
Parsley-fern
American parsley-fern (Cryptogramma acrostichoides) – 28 photos
Cascades parsley-fern (Cryptogramma cascadensis) – 23 photos
Parsley-piert
field parsley-piert (Aphanes arvensis) – 11 photos
small-fruited parsley-piert (Aphanes australis) – 12 photos
western parsley-piert (Aphanes occidentalis) – 10 photos
Parsnip
common parsnip (Pastinaca sativa) – 19 photos
water parsnip (Sium suave) – 30 photos
wild parsnip (Pastinaca sativa) – 19 photos
Partridgefoot
partridgefoot (Luetkea pectinata) – 64 photos
Pasqueflower
mountain pasqueflower (Anemone occidentalis) – 108 photos
pasqueflower (Anemone patens) – 5 photos
western pasqueflower (Anemone occidentalis) – 108 photos
Pathfinder
pathfinder (Adenocaulon bicolor) – 48 photos
Pax
inrolled pax (Paxillus involutus) – 9 photos
velvet pax (Tapinella atrotomentosa) – 8 photos
Paxillus
stalkless Paxillus (Tapinella panuoides (Paxillus)) – 2 photos
Pea
Cusick's pea (Lathyrus nevadensis var. cusickii) – 4 photos
few-flowered pea (Lathyrus pauciflorus var. pauciflorus) – 49 photos
Pacific pea (Lathyrus vestitus var. vestitus) – 3 photos
Sierra pea (Lathyrus nevadensis var. nevadensis) – 30 photos
Pea-rock
Peach
Pear
Callery pear (Pyrus calleryana) – 6 photos
common pear (Pyrus communis) – 10 photos
Pearlflower
western pearlflower (Heterocodon rariflorus) – 20 photos
Pearlwort
alpine pearlwort (Sagina saginoides) – 21 photos
annual pearlwort (Sagina apetala) – 11 photos
arctic pearlwort (Sagina saginoides) – 21 photos
bird-eye pearlwort (Sagina procumbens) – 25 photos
stick-stemmed pearlwort (Sagina maxima ssp. crassicaulis) – 17 photos
western pearlwort (Sagina decumbens ssp. occidentalis) – 25 photos
Peashrub
Siberian peashrub (Caragana arborescens) – 25 photos
Peavine
angled peavine (Lathyrus angulatus) – 19 photos
beach peavine (Lathyrus littoralis) – 17 photos
cream-flowered peavine (Lathyrus ochroleucus) – 4 photos
everlasting peavine (Lathyrus latifolius) – 26 photos
few-flowered peavine (Lathyrus pauciflorus) – 17 photos
grass peavine (Lathyrus sphaericus) – 11 photos
leafy peavine (Lathyrus polyphyllus) – 39 photos
marsh peavine (Lathyrus palustris) – 13 photos
narrow-leaf peavine (Lathyrus sylvestris) – 12 photos
Nevada peavine (Lathyrus lanszwertii) – 22 photos
Pacific peavine (Lathyrus vestitus var. ochropetalus) – 11 photos
perennial peavine (Lathyrus latifolius) – 26 photos
pinewoods peavine (Lathyrus lanszwertii var. aridus) – 2 photos
Sierra peavine (Lathyrus nevadensis) – 10 photos
thick-leaved peavine (Lathyrus lanszwertii) – 22 photos
thick-leaved peavine (Lathyrus lanszwertii var. lanszwertii) – 6 photos
Torrey's peavine (Lathyrus torreyi) – 21 photos
Pectocarya
little pectocarya (Gruvelia) – 13 photos
winged pectocarya (Pectocarya penicillata) – 13 photos
Pellitory
Pennsylvania pellitory (Parietaria pensylvanica) – 18 photos
Pencils
pink pencils (Ramaria cyaneigranosa var. elongata) – 4 photos
Penny
tinker's penny (Hypericum anagalloides) – 38 photos
Pennycress
Fendler's pennycress (Noccaea fendleri) – 3 photos
field pennycress (Thlaspi arvense) – 32 photos
Pennyroyal
pennyroyal (Mentha pulegium) – 14 photos
Penstemon
Blue Mountain penstemon (Penstemon venustus) – 50 photos
broad-leaved penstemon (Penstemon ovatus) – 30 photos
bush penstemon (Penstemon fruticosus) – 29 photos
coast penstemon (Penstemon serrulatus) – 59 photos
crested-tongue penstemon (Penstemon eriantherus) – 4 photos
Davidson's penstemon (Penstemon davidsonii) – 21 photos
fuzzy-tongue penstemon (Penstemon eriantherus) – 4 photos
Gairdner's penstemon (Penstemon gairdneri) – 27 photos
Gairdner's penstemon (Penstemon gairdneri var. gairdneri) – 57 photos
glandular penstemon (Penstemon glandulosus) – 4 photos
hot-rock penstemon (Penstemon deustus) – 11 photos
hot-rock penstemon (Penstemon deustus var. deustus) – 24 photos
hotrock penstemon (Penstemon deustus var. variabilis) – 6 photos
lowly penstemon (Penstemon humilis var. humilis) – 22 photos
Lyall's penstemon (Penstemon lyallii) – 7 photos
Palmer's penstemon (Penstemon palmeri) – 24 photos
Palmer's penstemon (Penstemon palmeri var. palmeri) – 1 photo
Richardson's penstemon (Penstemon richardsonii) – 21 photos
Richardson's penstemon (Penstemon richardsonii var. richardsonii) – 38 photos
rock penstemon (Penstemon rupicola) – 71 photos
Roezl's penstemon (Penstemon roezlii) – 2 photos
Rydberg's penstemon (Penstemon rydbergii var. oreocharis) – 36 photos
sand dune penstemon (Penstemon acuminatus) – 39 photos
sand dune penstemon (Penstemon acuminatus var. acuminatus) – 5 photos
scabland penstemon (Penstemon deustus var. variabilis) – 6 photos
scorched penstemon (Penstemon deustus var. variabilis) – 6 photos
sharp-leaved penstemon (Penstemon acuminatus) – 39 photos
sharp-leaved penstemon (Penstemon acuminatus var. acuminatus) – 5 photos
showy penstemon (Penstemon speciosus) – 63 photos
shrubby penstemon (Penstemon fruticosus) – 29 photos
shrubby penstemon (Penstemon fruticosus var. fruticosus) – 49 photos
shrubby penstemon (Penstemon fruticosus var. scouleri) – 12 photos
shrubby penstemon (Penstemon fruticosus var. serratus) – 15 photos
small-flowered penstemon (Penstemon procerus) – 33 photos
small-flowered penstemon (Penstemon procerus var. procerus) – 9 photos
small-flowered penstemon (Penstemon procerus var. tolmiei) – 28 photos
sticky-stem penstemon (Penstemon glandulosus var. chelanensis) – 38 photos
sticky-stem penstemon (Penstemon glandulosus var. glandulosus) – 11 photos
sulphur penstemon (Penstemon attenuatus) – 6 photos
sulphur penstemon (Penstemon attenuatus var. attenuatus) – 27 photos
taper-leaved penstemon (Penstemon attenuatus) – 6 photos
taper-leaved penstemon (Penstemon attenuatus var. attenuatus) – 27 photos
Whited's fuzzy-tongue penstemon (Penstemon eriantherus var. whitedii) – 29 photos
whorled penstemon (Penstemon triphyllus var. triphyllus) – 4 photos
Peony
brown's peony (Paeonia brownii) – 59 photos
western peony (Paeonia brownii) – 59 photos
Pepper
water pepper (Persicaria hydropiperoides) – 17 photos
Peppergrass
alkali peppergrass (Lepidium dictyotum) – 4 photos
branched peppergrass (Lepidium ramosissimum) – 5 photos
broad-leaved peppergrass (Lepidium latifolium) – 29 photos
clasping-leaved peppergrass (Lepidium perfoliatum) – 32 photos
coastal peppergrass (Lepidium virginicum ssp. menziesii) – 46 photos
common peppergrass (Lepidium densiflorum) – 17 photos
elongate peppergrass (Lepidium densiflorum) – 17 photos
field peppergrass (Lepidium campestre) – 43 photos
hairy peppergrass (Lepidium virginicum ssp. menziesii) – 46 photos
hairy-fruited peppergrass (Lepidium densiflorum) – 17 photos
large-fruited peppergrass (Lepidium densiflorum) – 17 photos
peppergrass (Lepidium latifolium) – 29 photos
prairie peppergrass (Lepidium densiflorum) – 17 photos
round-leaved peppergrass (Lepidium perfoliatum) – 32 photos
shining peppergrass (Lepidium nitidum) – 13 photos
upright peppergrass (Lepidium strictum) – 8 photos
veiny peppergrass (Lepidium dictyotum) – 4 photos
yellow-flowered peppergrass (Lepidium perfoliatum) – 32 photos
Peppermint
peppermint (Mentha ×piperita) – 25 photos
Pepperweed
purple-anther pepperweed (Lepidium heterophyllum) – 28 photos
Smith's pepperweed (Lepidium heterophyllum) – 28 photos
tall pepperweed (Lepidium virginicum) – 3 photos
Pepperwort
broad-leaved pepperwort (Lepidium latifolium) – 29 photos
forked pepperwort (Lepidium oxycarpum) – 4 photos
hoary pepperwort (Lepidium draba) – 53 photos
Nelson's pepperwort (Marsilea oligospora) – 2 photos
pepperwort (Lepidium campestre) – 43 photos
pepperwort (Marsilea vestita) – 34 photos
sharpfruited pepperwort (Lepidium oxycarpum) – 4 photos
water-clover pepperwort (Marsilea vestita) – 34 photos
Periwinkle
greater periwinkle (Vinca major) – 23 photos
lesser periwinkle (Vinca minor) – 25 photos
Pestle
strap-shaped pestle (Clavariadelphus sachalinensis) – 1 photo
Phacelia
Bolander's phacelia (Phacelia bolanderi) – 18 photos
branched phacelia (Phacelia ramosissima) – 21 photos
branched phacelia (Phacelia ramosissima var. ramosissima) – 17 photos
least phacelia (Phacelia minutissima) – 8 photos
low phacelia (Phacelia humilis) – 17 photos
low phacelia (Phacelia humilis var. humilis) – 12 photos
shade phacelia (Phacelia nemoralis) – 7 photos
silky phacelia (Phacelia sericea) – 44 photos
silky phacelia (Phacelia sericea var. sericea) – 21 photos
silverleaf phacelia (Phacelia hastata) – 32 photos
silverleaf phacelia (Phacelia hastata var. compacta) – 28 photos
silverleaf phacelia (Phacelia hastata var. hastata) – 35 photos
sticky phacelia (Phacelia glandulifera) – 12 photos
thread-leaf phacelia (Phacelia linearis) – 79 photos
varileaf phacelia (Phacelia heterophylla) – 32 photos
varileaf phacelia (Phacelia heterophylla var. heterophylla) – 28 photos
varileaf phacelia (Phacelia heterophylla var. virgata) – 10 photos
virgate phacelia (Phacelia heterophylla) – 32 photos
whiteleaf phacelia (Phacelia hastata) – 32 photos
whiteleaf phacelia (Phacelia hastata var. compacta) – 28 photos
whiteleaf phacelia (Phacelia hastata var. hastata) – 35 photos
woodland phacelia (Phacelia nemoralis) – 7 photos
woodland phacelia (Phacelia nemoralis var. oregonensis) – 13 photos
Phaeocollybia
Kit's Phaeocollybia (Phaeocollybia scatesiae) – 1 photo
pretty Phaeocollybia (Phaeocollybia fallax) – 3 photos
Pheasant's-eye
summer pheasant's-eye (Adonis aestivalis) – 6 photos
Phellodon
zoned Phellodon (Phellodon tomentosus) – 3 photos
Phlebia
radiating Phlebia (Phlebia radiata) – 1 photo
Phlox
carpet phlox (Phlox hoodii ssp. canescens) – 10 photos
clumped phlox (Phlox caespitosa) – 46 photos
clustered phlox (Phlox caespitosa) – 46 photos
Henderson's phlox (Phlox hendersonii) – 26 photos
Hood's phlox (Phlox hoodii) – 45 photos
Hood's phlox (Phlox hoodii ssp. canescens) – 10 photos
long-leaf phlox (Phlox longifolia) – 63 photos
many-flowered phlox (Phlox multiflora) – 16 photos
prickly phlox (Linanthus pungens) – 40 photos
showy phlox (Phlox speciosa) – 73 photos
slender phlox (Microsteris gracilis) – 76 photos
Snake River phlox (Phlox colubrina) – 10 photos
soft phlox (Phlox mollis) – 6 photos
spreading phlox (Phlox diffusa) – 99 photos
sticky phlox (Phlox viscida) – 24 photos
stiff phlox (Phlox caespitosa) – 46 photos
tufted phlox (Phlox caespitosa) – 46 photos
yeti phlox (Phlox solivaga) – 2 photos
Pholiota
bitter Pholiota (Pholiota astragalina) – 4 photos
bristly Pholiota (Pholiota squarrosoides) – 2 photos
destructive Pholiota (Pholiota populnea) – 9 photos
flaming Pholiota (Pholiota flammans) – 9 photos
golden false Pholiota (Phaeolepiota aurea) – 10 photos
golden Pholiota (Pholiota aurivella) – 7 photos
ground Pholiota (Pholiota terrestris) – 6 photos
lemon-yellow Pholiota (Pholiota limonella) – 6 photos
pinkish-orange Pholiota (Pholiota astragalina) – 4 photos
poplar Pholiota (Pholiota populnea) – 9 photos
slender Pholiota (Pholiota spumosa) – 6 photos
terrestrial Pholiota (Pholiota terrestris) – 6 photos
yellow Pholiota (Pholiota flammans) – 9 photos
Pickerel-weed
pickerel-weed (Pontederia cordata) – 10 photos
Pickleweed
pickleweed (Salicornia pacifica) – 18 photos
Pig's-ear
Pig's-ears
pig's-ears (Gomphus clavatus) – 12 photos
Pigeonberry
pigeonberry (Phytolacca americana) – 21 photos
pigeonberry (Phytolacca americana var. americana) – 4 photos
Piggyback
powdery piggyback (Asterophora lycoperdoides) – 4 photos
silky piggyback (Asterophora parasitica) – 2 photos
Piggyback-plant
piggyback-plant (Tolmiea menziesii) – 38 photos
Pigweed
green pigweed (Amaranthus hybridus) – 13 photos
prostrate pigweed (Amaranthus blitoides) – 9 photos
redroot pigweed (Amaranthus retroflexus) – 16 photos
rough pigweed (Amaranthus retroflexus) – 16 photos
smooth pigweed (Amaranthus hybridus) – 13 photos
white pigweed (Amaranthus albus) – 30 photos
Pillwort
American pillwort (Pilularia americana) – 7 photos
Pimpernel
false pimpernel (Lindernia dubia) – 75 photos
scarlet pimpernel (Lysimachia arvensis) – 82 photos
water pimpernel (Samolus parviflorus) – 11 photos
Pimple
green mushroom pimple (Hypomyces luteovirens) – 1 photo
orange mushroom pimple (Hypomyces lactifluorum) – 7 photos
Pincushion
Thompson's pincushion (Chaenactis thompsonii) – 20 photos
Pincushion-plant
Alva Day's pincushion-plant (Navarretia sinistra) – 7 photos
divaricate pincushion-plant (Navarretia divaricata) – 8 photos
linear-leaved pincushion-plant (Navarretia linearifolia ssp. linearifolia) – 16 photos
marigold pincushion-plant (Navarretia tagetina) – 15 photos
mountain pincushion-plant (Navarretia divaricata) – 8 photos
yellow pincushion-plant (Navarretia breweri) – 26 photos
Pine
lodgepole pine (Pinus contorta) – 24 photos
lodgepole pine (Pinus contorta var. latifolia) – 14 photos
ponderosa pine (Pinus ponderosa) – 59 photos
ponderosa pine (Pinus ponderosa var. ponderosa) – 21 photos
Rocky Mountain ponderosa pine (Pinus ponderosa var. scopulorum) – 1 photo
shore pine (Pinus contorta var. contorta) – 13 photos
Sierra lodgepole pine (Pinus contorta var. murrayana) – 5 photos
western white pine (Pinus monticola) – 42 photos
western yellow pine (Pinus ponderosa) – 59 photos
western yellow pine (Pinus ponderosa var. ponderosa) – 21 photos
white-bark pine (Pinus albicaulis) – 57 photos
Pine spike
pine spike (Chroogomphus vinicolor) – 4 photos
woolly pine spike (Chroogomphus tomentosus) – 2 photos
Pine-spike
robust pine-spike (Chroogomphus pseudovinicolor) – 3 photos
Pinedrops
woodland pinedrops (Pterospora andromedea) – 64 photos
Pinefoot
California pinefoot (Pityopus californicus) – 4 photos
Pinegrass
Pinesap
fringed pinesap (Pleuricospora fimbriolata) – 25 photos
Pink
Deptford pink (Dianthus armeria) – 46 photos
maiden pink (Dianthus deltoides) – 1 photo
windmill pink (Silene gallica) – 9 photos
Pink fairies
pink fairies (Clarkia pulchella) – 50 photos
Pinkgill
big blue pinkgill (Entoloma bloxamii Group (madidum)) – 2 photos
blue-edge pinkgill (Leptonia serrulata) – 5 photos
cream pinkgill (Alboleptonia sericella var. lutescens (Entoloma)) – 1 photo
mousepee pinkgill (Leptonia incana (Entoloma)) – 2 photos
silky pinkgill (Nolanea sericea) – 6 photos
Pinky
pale pinky (Ramaria rubrievanescens) – 3 photos
perma pinky (Ramaria rubripermanens) – 6 photos
Pinwheel
white pinwheel (Marasmius epiphyllus) – 2 photos
Pipsissewa
common Pipsissewa (Chimaphila umbellata) – 38 photos
little pipsissewa (Chimaphila menziesii) – 42 photos
Pipsissewa (Chimaphila umbellata ssp. umbellata) – 33 photos
Pitcher-plant
purple pitcher-plant (Sarracenia purpurea) – 13 photos
white-topped pitcher-plant (Sarracenia leucophylla) – 2 photos
yellow pitcher-plant (Sarracenia flava) – 19 photos
Pitchfork
devil's pitchfork (Bidens frondosa) – 27 photos
Plains mustard
flax-leaved plains mustard (Sisymbrium linifolium) – 62 photos
Salmon River plains mustard (Sisymbrium linifolium) – 62 photos
Plane-tree
American plane-tree (Platanus occidentalis) – 12 photos
Plant
gopher plant (Euphorbia lathyris) – 18 photos
money plant (Lunaria annua) – 40 photos
monument plant (Frasera speciosa) – 51 photos
oyster plant (Tragopogon porrifolius) – 27 photos
Plantain
Alaska plantain (Plantago macrocarpa) – 3 photos
alkali plantain (Plantago eriopoda) – 11 photos
buck-horn plantain (Plantago coronopus) – 15 photos
common plantain (Plantago major) – 23 photos
English plantain (Plantago lanceolata) – 34 photos
great plantain (Plantago major) – 23 photos
large-fruited plantain (Plantago macrocarpa) – 3 photos
Mexican plantain (Plantago subnuda) – 7 photos
red-woolly plantain (Plantago eriopoda) – 11 photos
sand plantain (Plantago arenaria) – 17 photos
slender plantain (Plantago elongata) – 22 photos
tall coastal plantain (Plantago subnuda) – 7 photos
woolly plantain (Plantago patagonica) – 35 photos
Plectritis
long-horn plectritis (Plectritis macrocera) – 49 photos
long-spurred plectritis (Plectritis ciliosa) – 5 photos
rosy plectritis (Plectritis congesta) – 45 photos
shortspur white plectritis (Plectritis brachystemon) – 23 photos
white plectritis (Plectritis macrocera) – 49 photos
Plum
cherry plum (Prunus cerasifera) – 18 photos
cultivated plum (Prunus domestica) – 26 photos
Flowering plum (Prunus cerasifera) – 18 photos
Indian plum (Oemleria) – 1 photo
Indian plum (Oemleria cerasiformis) – 55 photos
Klamath plum (Prunus subcordata) – 4 photos
Plumeless thistle
Italian plumeless thistle (Carduus pycnocephalus ssp. pycnocephalus) – 3 photos
Plums-and-custard
plums-and-custard (Tricholomopsis rutilans) – 10 photos
Pluteus
black-edged Pluteus (Pluteus atromarginatus) – 4 photos
yellow-stemmed Pluteus (Pluteus romellii (nanus)) – 3 photos
Podfern
Poison
fish poison (Croton setigerus) – 18 photos
Poison hemlock
poison hemlock (Conium maculatum) – 27 photos
Poison ivy
western poison ivy (Toxicodendron radicans) – 7 photos
Poison-ivy
poison-ivy (Toxicodendron radicans var. rydbergii) – 23 photos
western poison-ivy (Toxicodendron radicans var. rydbergii) – 23 photos
Poison-oak
Pacific poison-oak (Toxicodendron diversilobum) – 38 photos
Poison-pie
poison-pie (Hebeloma crustuliniforme) – 2 photos
Poison-vetch
poison-vetch (Astragalus) – 3 photos
Poisonpie
sweet poisonpie (Hebeloma sacchariolens) – 8 photos
veiled poisonpie (Hebeloma mesophaeum) – 10 photos
Pokeberry
Pokeweed
Polemonium
annual polemonium (Polemonium micranthum) – 43 photos
elegant polemonium (Polemonium elegans) – 47 photos
great polemonium (Polemonium carneum) – 17 photos
polemonium (Polemonium) – 1 photo
salmon polemonium (Polemonium carneum) – 17 photos
showy polemonium (Polemonium pulcherrimum) – 21 photos
sticky polemonium (Polemonium viscosum) – 14 photos
Washington polemonium (Polemonium pectinatum) – 19 photos
western polemonium (Polemonium occidentale) – 35 photos
Polypody
irregular polypody (Polypodium amorphum) – 17 photos
leathery polypody (Polypodium scouleri) – 24 photos
Scouler's polypody (Polypodium scouleri) – 24 photos
western polypody (Polypodium hesperium) – 15 photos
Polypore
birch polypore (Piptoporus betulinus) – 1 photo
bitter iodine polypore (Jahnoporus hirtus) – 5 photos
black-footed polypore (Picipes badius) – 1 photo
black-footed polypore (Polyporus badius) – 8 photos
blue cheese polypore (Oligoporus caesius) – 5 photos
blue-capped polypore (Albatrellus flettii) – 5 photos
Bondarzew's polypore (Bondarzewia occidentalis) – 7 photos
bone polypore (Oligoporus obductus) – 1 photo
cinnabar-red polypore (Pycnoporus cinnabarinus) – 3 photos
dye polypore (Phaeolus schweinitzii) – 18 photos
dyer's polypore (Phaeolus schweinitzii) – 18 photos
false tinder polypore (Phellinus igniarius) – 1 photo
flecked-flesh polypore (Phellinus igniarius) – 1 photo
Flett's polypore (Albatrellus flettii) – 5 photos
gelatinous pored polypore (Gloeoporus dichrous) – 2 photos
giant mountain polypore (Bondarzewia occidentalis) – 7 photos
golden spreading polypore (Porodaedalea chrysoloma (Phellinus)) – 1 photo
gray polypore (Cerrena unicolor) – 2 photos
larch polypore (Fomitopsis officinalis) – 3 photos
many-colored polypore (Trametes versicolor) – 12 photos
marshmallow polypore (Oligoporus leucospongia) – 3 photos
milk-white toothed polypore (Irpex lacteus) – 1 photo
mossy maze polypore (Cerrena unicolor) – 2 photos
mustard-yellow polypore (Fuscoporia gilva) – 2 photos
orange sponge polypore (Pycnoporellus alboluteus) – 4 photos
red-belted polypore (Fomitopsis mounceae Stephen Kropp) – 2 photos
red-belted polypore (Fomitopsis pinicola) – 8 photos
resinous polypore (Ischnoderma resinosum) – 6 photos
rosy polypore (Rhodofomes cajanderi) – 7 photos
rusty-gilled polypore (Gloeophyllum sepiarium) – 5 photos
scaly yellow polypore (Albatrellus ellisii) – 5 photos
sheep polypore (Albatrellus ovinus) – 3 photos
smoky polypore (Bjerkandera adusta) – 3 photos
thin-maze flat polypore (Daedaleopsis confragosa) – 2 photos
thin-walled maze polypore (Daedaleopsis confragosa) – 2 photos
tinder polypore (Fomes fomentarius) – 3 photos
tuberous polypore (Polyporus tuberaster (decurrens)) – 4 photos
umbrella polypore (Polyporus umbellatus) – 1 photo
veiled polypore (Cryptoporus volvatus) – 10 photos
vermilion polypore (Pycnoporus cinnabarinus) – 3 photos
violet toothed polypore (Trichaptum biforme) – 1 photo
white spongy polypore (Oligoporus leucospongia) – 3 photos
winter polypore (Polyporus brumalis) – 1 photo
woolly velvet polypore (Onnia tomentosa) – 7 photos
yellow-red gill polypore (Gloeophyllum sepiarium) – 5 photos
Pondweed
Berchtold's pondweed (Potamogeton berchtoldii) – 7 photos
blunt-leaved pondweed (Potamogeton obtusifolius) – 3 photos
broad-leaved pondweed (Potamogeton amplifolius) – 18 photos
clasping-leaved pondweed (Potamogeton richardsonii) – 24 photos
curly pondweed (Potamogeton crispus) – 28 photos
eel-grass pondweed (Potamogeton zosteriformis) – 7 photos
fennel-leaved pondweed (Stuckenia pectinata) – 20 photos
fern pondweed (Potamogeton robbinsii) – 5 photos
flat-stem pondweed (Potamogeton zosteriformis) – 7 photos
floating pondweed (Potamogeton natans) – 30 photos
floating-leaved pondweed (Potamogeton natans) – 30 photos
grassy pondweed (Potamogeton gramineus) – 7 photos
horned pondweed (Zannichellia palustris) – 11 photos
illinois pondweed (Potamogeton illinoensis) – 23 photos
large-leaved pondweed (Potamogeton amplifolius) – 18 photos
leafy pondweed (Potamogeton foliosus) – 17 photos
loddon's pondweed (Potamogeton nodosus) – 12 photos
long-leaved pondweed (Potamogeton nodosus) – 12 photos
ribbon-leaved pondweed (Potamogeton epihydrus) – 32 photos
Richardson's pondweed (Potamogeton richardsonii) – 24 photos
Robbin's pondweed (Potamogeton robbinsii) – 5 photos
sago pondweed (Stuckenia pectinata) – 20 photos
slender-leaved pondweed (Stuckenia filiformis) – 9 photos
small pondweed (Potamogeton pusillus) – 7 photos
variable pondweed (Potamogeton gramineus) – 7 photos
western pondweed (Stuckenia filiformis) – 9 photos
white-stalked pondweed (Potamogeton praelongus) – 8 photos
whitestem pondweed (Potamogeton praelongus) – 8 photos
Popcorn-flower
alkali popcorn-flower (Plagiobothrys leptocladus) – 20 photos
cognate popcorn-flower (Plagiobothrys cognatus) – 10 photos
fragrant popcorn-flower (Plagiobothrys figuratus) – 16 photos
fragrant popcorn-flower (Plagiobothrys figuratus var. figuratus) – 9 photos
harsh popcorn-flower (Plagiobothrys hispidulus) – 23 photos
matted popcorn-flower (Plagiobothrys cusickii) – 25 photos
Pacific popcorn-flower (Plagiobothrys tenellus) – 50 photos
rusty popcorn-flower (Plagiobothrys nothofulvus) – 23 photos
Scouler's popcorn-flower (Plagiobothrys scouleri) – 38 photos
slender popcorn-flower (Plagiobothrys tenellus) – 50 photos
slender-branched popcorn-flower (Plagiobothrys leptocladus) – 20 photos
Poplar
lombardy poplar (Populus nigra) – 10 photos
white poplar (Populus alba) – 33 photos
Poppy
California poppy (Eschscholzia californica) – 27 photos
California poppy (Eschscholzia californica ssp. californica) – 18 photos
corn poppy (Papaver rhoeas) – 39 photos
long prickly-head poppy (Papaver argemone) – 9 photos
long-headed poppy (Papaver dubium) – 43 photos
opium poppy (Papaver somniferum) – 19 photos
Welsh poppy (Parameconopsis cambrica) – 8 photos
Poque
Porcini
Porecrust
common porecrust (Schizophyllum commune) – 16 photos
rusty porecrust (Fuscoporia ferruginosa) – 2 photos
Potato
duck potato (Sagittaria latifolia) – 30 photos
irish potato (Solanum tuberosum) – 5 photos
small potato (Scleroderma areolatum) – 4 photos
Povertyweed
Nuttall's povertyweed (Blitum nuttallianum) – 15 photos
red povertyweed (Micromonolepis pusilla) – 7 photos
Powder-cap
powder-cap (Asterophora lycoperdoides) – 4 photos
Powdercap
cinnabar powdercap (Cystodermella cinnabarina) – 1 photo
earthy powdercap (Cystoderma amianthinum) – 8 photos
star-bearing powdercap (Asterophora lycoperdoides) – 4 photos
Prairie coneflower
Upright prairie coneflower (Ratibida columnifera) – 16 photos
Prairie sage
Lindley's prairie sage (Artemisia ludoviciana ssp. lindleyana) – 6 photos
Prairie star
bulbiferous prairie star (Lithophragma glabrum) – 77 photos
slender prairie star (Lithophragma tenellum) – 36 photos
small-flower prairie star (Lithophragma parviflorum) – 97 photos
Prairie-clover
Blue Mountain prairie-clover (Dalea ornata) – 42 photos
Prairie-crocus
prairie-crocus (Anemone patens) – 5 photos
Pricklegrass
foxtail pricklegrass (Crypsis alopecuroides) – 13 photos
modest pricklegrass (Crypsis vaginiflora) – 3 photos
Prickly-pear
brittle prickly-pear (Opuntia fragilis) – 33 photos
Columbia prickly-pear (Opuntia columbiana) – 32 photos
little prickly-pear (Opuntia fragilis) – 33 photos
Prickly-poppy
white prickly-poppy (Argemone polyanthemos) – 12 photos
Pricklypear cactus
starvation pricklypear cactus (Opuntia polyacantha) – 1 photo
Primrose
butte primrose (Oenothera cespitosa ssp. cespitosa) – 36 photos
fragrant evening primrose (Oenothera cespitosa ssp. cespitosa) – 36 photos
Hooker's evening primrose (Oenothera elata) – 11 photos
long-tubed evening primrose (Oenothera flava) – 1 photo
pale evening primrose (Oenothera pallida ssp. pallida) – 32 photos
water primrose (Ludwigia hexapetala) – 6 photos
Primrose-willow
floating primrose-willow (Ludwigia peploides) – 6 photos
large-flower primrose-willow (Ludwigia grandiflora) – 9 photos
marsh primrose-willow (Ludwigia palustris) – 39 photos
Prince
the prince (Agaricus augustus) – 15 photos
Prince's-pine
common prince's-pine (Chimaphila umbellata ssp. umbellata) – 33 photos
little prince's-pine (Chimaphila menziesii) – 42 photos
prince's-pine (Chimaphila umbellata) – 38 photos
Princess tree
princess tree (Paulownia tomentosa) – 15 photos
Privet
common privet (Ligustrum vulgare) – 14 photos
Professor-weed
professor-weed (Galega officinalis) – 17 photos
Prunes-and-custard
prunes-and-custard (Tricholomopsis decora) – 3 photos
Psathyrella
clustered Psathyrella (Psathyrella piluliformis) – 8 photos
date-colored Psathyrella (Psathyrella spadicea) – 2 photos
ringed Psathyrella (Psathyrella longistriata) – 4 photos
Psilocybe
blue-haired psilocybe (Psilocybe cyanofibrillosa) – 1 photo
blueing psilocybe (Psilocybe cyanescens) – 5 photos
conifer psilocybe (Psilocybe pelliculosa) – 6 photos
grass rotting psilocybe (Psilocybe inquilina) – 1 photo
mountain moss psilocybe (Psilocybe montana) – 2 photos
potent psilocybe (Psilocybe baeocystis) – 3 photos
potent psilocybe (Psilocybe cyanescens) – 5 photos
rhododendron psilocybe (Psilocybe cyanofibrillosa) – 1 photo
Stuntz's psilocybe (Psilocybe stuntzii) – 3 photos
wavy-capped psilocybe (Psilocybe cyanescens) – 5 photos
Puddingberry
puddingberry (Cornus canadensis) – 13 photos
Puff-ball
warted puff-ball (Lycoperdon perlatum) – 12 photos
Puffball
Boone's puffball (Calvatia booniana) – 4 photos
dark puffball (Lycoperdon nigrescens) – 1 photo
desert stalked puffball (Chlamydopus meyenianus) – 4 photos
dusky puffball (Lycoperdon nigrescens) – 1 photo
dye-maker's false puffball (Pisolithus arhizus (tinctorius)) – 5 photos
dyemaker's puffball (Pisolithus arhizus (tinctorius)) – 5 photos
flatcap stalked puffball (Battarrea phalloides) – 2 photos
gem puffball (Lycoperdon perlatum) – 12 photos
gem-studded puffball (Lycoperdon perlatum) – 12 photos
grey puffball (Bovista plumbea) – 6 photos
lead-colored puffball (Bovista plumbea) – 6 photos
pear puffball (Lycoperdon pyriforme) – 5 photos
pear-shaped puffball (Lycoperdon pyriforme) – 5 photos
pigskin poison puffball (Scleroderma citrinum) – 2 photos
puffball parasol (Chlorophyllum agaricoides (Endotychum)) – 1 photo
purple-spored puffball (Calvatia cyathiformis) – 2 photos
scaly-stalked puffball (Battarrea phalloides) – 2 photos
sculptured giant puffball (Calbovista subsculpta) – 6 photos
sculptured puffball (Calbovista subsculpta) – 6 photos
sculptured puffball (Calvatia sculpta) – 3 photos
Sierran puffball (Calvatia sculpta) – 3 photos
small warted mountain puffball (Calvatia subcretacea) – 1 photo
stump puffball (Lycoperdon pyriforme) – 5 photos
thick-skinned puffball (Scleroderma citrinum) – 2 photos
tumbling puffball (Bovista pila) – 2 photos
tumbling puffball (Bovista plumbea) – 6 photos
vase puffball (Calvatia cyathiformis) – 2 photos
warted giant puffball (Calbovista subsculpta) – 6 photos
western giant puffball (Calvatia booniana) – 4 photos
western lawn puffball (Vascellum lloydianum) – 2 photos
Puffbowl
western lawn puffbowl (Vascellum lloydianum) – 2 photos
Puncture-bract
treelike puncture-bract (Oxytheca dendroidea) – 14 photos
Purples
long purples (Lythrum salicaria) – 34 photos
Purslane
common purslane (Portulaca oleracea) – 32 photos
sea purslane (Honckenya peploides) – 28 photos
sea purslane (Honckenya peploides ssp. major) – 6 photos
western purslane (Sesuvium verrucosum) – 9 photos
Pussy-toes
field pussy-toes (Antennaria neglecta) – 2 photos
silvery pussy-toes (Antennaria argentea) – 8 photos
Pussypaws
rosy pussypaws (Calyptridium roseum) – 7 photos
Pussytoes
alpine pussytoes (Antennaria alpina) – 8 photos
alpine pussytoes (Antennaria media) – 27 photos
brown-bract pussytoes (Antennaria umbrinella) – 9 photos
cushion pussytoes (Antennaria dimorpha) – 46 photos
flat topped pussytoes (Antennaria corymbosa) – 4 photos
Geyer's pussytoes (Antennaria geyeri) – 9 photos
Hooker's pussytoes (Antennaria racemosa) – 48 photos
Howell's pussytoes (Antennaria howellii) – 9 photos
Howell's pussytoes (Antennaria howellii ssp. howellii) – 18 photos
little-leaf pussytoes (Antennaria microphylla) – 216 photos
little-leaf pussytoes (Antennaria parvifolia) – 5 photos
low pussytoes (Antennaria dimorpha) – 46 photos
meadow pussytoes (Antennaria corymbosa) – 4 photos
narrowleaved pussytoes (Antennaria stenophylla) – 39 photos
northern pussytoes (Antennaria howellii ssp. neodioica) – 14 photos
Nuttall's pussytoes (Antennaria parvifolia) – 5 photos
pinewoods pussytoes (Antennaria geyeri) – 9 photos
pygmy pussytoes (Antennaria monocephala) – 5 photos
raceme pussytoes (Antennaria racemosa) – 48 photos
Rocky Mountain pussytoes (Antennaria media) – 27 photos
rosy pussytoes (Antennaria microphylla) – 216 photos
showy pussytoes (Antennaria pulcherrima) – 3 photos
silvery brown pussytoes (Antennaria luzuloides ssp. luzuloides) – 26 photos
silvery-brown pussytoes (Antennaria luzuloides) – 13 photos
single-headed pussytoes (Antennaria monocephala) – 5 photos
stoloniferous pussytoes (Antennaria flagellaris) – 36 photos
tall pussytoes (Antennaria anaphaloides) – 16 photos
umber pussytoes (Antennaria umbrinella) – 9 photos
whip pussytoes (Antennaria flagellaris) – 36 photos
white pussytoes (Antennaria microphylla) – 108 photos
white pussytoes (Antennaria pulvinata) – 6 photos
woodrush pussytoes (Antennaria luzuloides) – 13 photos
woodrush pussytoes (Antennaria luzuloides ssp. luzuloides) – 26 photos
woolly pussytoes (Antennaria lanata) – 30 photos
Pygmyleaf
spreading pygmyleaf (Loeflingia squarrosa) – 1 photo
Pygmyweed
smooth-seed pygmyweed (Crassula solieri) – 4 photos
wrinkle-seed pygmyweed (Crassula aquatica) – 18 photos
Pyrola
one-sided pyrola (Orthilia secunda) – 63 photos
pink pyrola (Pyrola asarifolia ssp. asarifolia) – 22 photos
pink pyrola (Pyrola asarifolia ssp. bracteata) – 33 photos
toothleaf pyrola (Pyrola dentata) – 7 photos
