Browse photos by common name:
Common name begins with:
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z
Names beginning with P: Pacific, paint, paintbrush, paiuteweed, pampas grass, Panaeolus, Panellus, panicgrass, panicum, pansy, Panus, parachute, parasol, parchment, parnassus, parsely, parsley, parsley-piert, parsnip, partridgefoot, pasqueflower, pathfinder, pax, Paxillus, pea, pea-rock, peach, pear, pearleaf, pearlflower, pearlwort, peas, 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, pickelweed, 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, pinegrass, pinesap, pink, pinkfairies, pinkgill, pinky, pint, Pipsissewa, pitchfork, plagiobothrys, plainsmustard, plane-tree, plant, plantain, plectritis, plum, plumeless thistle, plums-and-custard, Pluteus, podfern, poison, poison ivy, poison-hemlock, poison-ivy, poison-oak, poisonpie, pokeberry, pokeweed, polemonium, polypody, polypore, pondweed, poplar, poppy, poque, porcini, porecrust, potato, povertyweed, powder-cap, powdercap, prairie coneflower, prairie-clover, prairie-crocus, pricklegrass, prickly-pear, prickly-poppy, primrose, primrose-willow, prince, prince's-pine, princess tree, privet, professor-weed, prunes-and-custard, Psathyrella, Psilocybe, puccoon, puddingberry, puff-ball, puffball, puffbowl, puffs, purple-eyed grass, purples, purslane, pussy-toes, pussypaws, pussytoes, pygmyflower, pygmyweed, pyrola
Pacific
Pacific (Rubus ursinus) – 50 photos
Paint
Indian paint (Blitum capitatum) – 12 photos
Paintbrush
attenuate paintbrush (Castilleja attenuata) – 26 photos
Chambers's Indian paintbrush (Castilleja chambersii) – 3 photos
cliff paintbrush (Castilleja rupicola) – 25 photos
coast paintbrush (Castilleja litoralis) – 10 photos
common paintbrush (Castilleja miniata) – 56 photos
Cusick's paintbrush (Castilleja cusickii) – 22 photos
deer paintbrush (Castilleja cervina) – 7 photos
devil's paintbrush (Hieracium aurantiacum) – 31 photos
Dixon's paintbrush (Castilleja miniata var. dixonii) – 18 photos
Elmer's paintbrush (Castilleja elmeri) – 51 photos
frosted paintbrush (Castilleja pruinosa) – 5 photos
golden paintbrush (Castilleja levisecta) – 32 photos
harsh paintbrush (Castilleja hispida) – 31 photos
harsh paintbrush (Castilleja hispida var. acuta) – 4 photos
harsh paintbrush (Castilleja hispida var. hispida) – 45 photos
magenta paintbrush (Castilleja parviflora var. oreopola) – 40 photos
mountain Indian paintbrush (Castilleja parviflora var. albida) – 34 photos
northwestern paintbrush (Castilleja angustifolia) – 5 photos
obscure paintbrush (Castilleja cryptantha) – 30 photos
Olympic paintbrush (Castilleja parviflora var. olympica) – 21 photos
Pacific paintbrush (Castilleja litoralis) – 10 photos
pruinose paintbrush (Castilleja pruinosa) – 5 photos
rhexia-leaved paintbrush (Castilleja rhexiifolia) – 11 photos
salt-marsh paintbrush (Castilleja ambigua var. ambigua) – 21 photos
scarlet paintbrush (Castilleja miniata) – 56 photos
scarlet paintbrush (Castilleja miniata var. miniata) – 24 photos
seep paintbrush (Castilleja minor var. exilis) – 11 photos
small-flowered paintbrush (Castilleja parviflora) – 7 photos
Suksdorf's paintbrush (Castilleja suksdorfii) – 18 photos
thin paintbrush (Castilleja tenuis) – 27 photos
Thompson's paintbrush (Castilleja thompsonii) – 69 photos
Victoria's paintbrush (Castilleja victoriae) – 7 photos
yellow paintbrush (Castilleja lutescens) – 18 photos
Paiuteweed
paiuteweed (Suaeda calceoliformis) – 13 photos
Pampas grass
purple pampas grass (Cortaderia jubata) – 15 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
winter Panellus (Panellus serotinus) – 3 photos
Panicgrass
hairy panicgrass (Dichanthelium acuminatum ssp. fasciculatum) – 11 photos
or common panicgrass (Panicum capillare ssp. capillare) – 12 photos
Panicum
fall panicum (Panicum dichotomiflorum) – 6 photos
fall panicum (Panicum dichotomiflorum ssp. dichotomiflorum) – 12 photos
Pansy
European field pansy (Viola arvensis) – 13 photos
Panus
hairy Panus (Lentinus strigosus) – 4 photos
ruddy Panus (Lentinus strigosus) – 4 photos
Parachute
horsehair parachute (Marasmius androsaceus) – 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) – 2 photos
red-tinged parasol (Leucoagaricus rubrotinctus) – 2 photos
saffron parasol (Cystoderma amianthinum) – 4 photos
shaggy parasol (Chlorophyllum brunneum) – 3 photos
shaggy-stalked parasol (Lepiota clypeolaria) – 3 photos
smooth parasol (Leucoagaricus leucothites) – 6 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) – 7 photos
Parnassus
fringed grass of parnassus (Parnassia fimbriata) – 48 photos
Parsely
parsely (Petroselinum crispum) – 2 photos
Parsley
fern-leaved desert parsley (Lomatium dissectum) – 88 photos
fern-leaved desert parsley (Lomatium multifidum) – 36 photos
fine-leaved desert parsley (Lomatium utriculatum) – 36 photos
Parsley-piert
field parsley-piert (Aphanes arvensis) – 18 photos
parsley-piert (Aphanes occidentalis) – 2 photos
small-fruited parsley-piert (Aphanes australis) – 10 photos
Parsnip
common parsnip (Pastinaca sativa) – 16 photos
cow parsnip (Heracleum maximum) – 85 photos
pestle parsnip (Lomatium nudicaule) – 41 photos
water parsnip (Sium suave) – 15 photos
wild parsnip (Pastinaca sativa) – 16 photos
Partridgefoot
partridgefoot (Luetkea pectinata) – 52 photos
Pasqueflower
pasqueflower (Anemone patens) – 2 photos
western pasqueflower (Anemone occidentalis) – 72 photos
Pathfinder
pathfinder (Adenocaulon bicolor) – 37 photos
Pax
fan pax (Tapinella panuoides (Paxillus)) – 2 photos
inrolled pax (Paxillus involutus) – 5 photos
velvet pax (Tapinella atrotomentosa) – 4 photos
Paxillus
stalkless Paxillus (Tapinella panuoides (Paxillus)) – 2 photos
Pea
beach pea (Lathyrus japonicus) – 18 photos
cream pea (Lathyrus ochroleucus) – 4 photos
few-flowered pea (Lathyrus pauciflorus var. pauciflorus) – 25 photos
grass pea (Lathyrus sphaericus) – 8 photos
lance-leaf scurf pea (Ladeania lanceolata) – 17 photos
leafy pea (Lathyrus polyphyllus) – 20 photos
marsh pea (Lathyrus palustris) – 3 photos
narrow-leaf pea (Lathyrus sylvestris) – 6 photos
Pacific pea (Lathyrus vestitus var. vestitus) – 3 photos
Sierra pea (Lathyrus nevadensis var. nevadensis) – 48 photos
Torrey's pea (Lathyrus torreyi) – 15 photos
Pea-rock
pea-rock (Pisolithus arhizus (tinctorius)) – 5 photos
Peach
peach (Prunus persica) – 2 photos
Pear
Callery pear (Pyrus calleryana) – 6 photos
Columbia prickly pear (Opuntia columbiana) – 18 photos
common pear (Pyrus communis) – 10 photos
Pearleaf
pearleaf (Leptarrhena pyrolifolia) – 45 photos
Pearlflower
western pearlflower (Heterocodon rariflorus) – 11 photos
Pearlwort
alpine pearlwort (Sagina saginoides) – 12 photos
annual pearlwort (Sagina apetala) – 11 photos
bird-eye pearlwort (Sagina procumbens) – 13 photos
stick-stemmed pearlwort (Sagina maxima ssp. crassicaulis) – 7 photos
western pearlwort (Sagina decumbens ssp. occidentalis) – 34 photos
Peas
cat peas (Vicia cracca) – 42 photos
Peashrub
Siberian peashrub (Caragana arborescens) – 25 photos
Peavine
beach peavine (Lathyrus littoralis) – 15 photos
few-flowered peavine (Lathyrus pauciflorus) – 4 photos
Nevada peavine (Lathyrus lanszwertii) – 19 photos
Pacific peavine (Lathyrus vestitus var. ochropetalus) – 11 photos
Sierra peavine (Lathyrus nevadensis) – 7 photos
thick-leaved peavine (Lathyrus lanszwertii) – 19 photos
thick-leaved peavine (Lathyrus lanszwertii var. lanszwertii) – 6 photos
Pectocarya
little pectocarya (Gruvelia) – 13 photos
winged pectocarya (Pectocarya penicillata) – 13 photos
Pellitory
Pennsylvania pellitory (Parietaria pensylvanica) – 14 photos
Pencils
pink pencils (Ramaria cyaneigranosa var. elongata) – 2 photos
Penny
tinker's penny (Hypericum anagalloides) – 27 photos
Pennycress
Fendler's pennycress (Noccaea fendleri) – 2 photos
field pennycress (Thlaspi arvense) – 22 photos
perfoliate pennycress (Microthlaspi perfoliatum) – 20 photos
Pennyroyal
pennyroyal (Mentha pulegium) – 8 photos
Penstemon
Blue Mountain penstemon (Penstemon venustus) – 38 photos
broad-leaved penstemon (Penstemon ovatus) – 18 photos
bush penstemon (Penstemon fruticosus) – 21 photos
coast penstemon (Penstemon serrulatus) – 54 photos
crested tongue penstemon (Penstemon eriantherus) – 4 photos
Davidson's penstemon (Penstemon davidsonii) – 18 photos
fuzzy penstemon (Penstemon eriantherus) – 4 photos
fuzzy-tongue penstemon (Penstemon eriantherus var. whitedii) – 20 photos
gairdner's penstemon (Penstemon gairdneri) – 8 photos
Gairdner's penstemon (Penstemon gairdneri var. gairdneri) – 39 photos
glandular penstemon (Penstemon glandulosus) – 4 photos
hot-rock penstemon (Penstemon deustus) – 1 photo
hot-rock penstemon (Penstemon deustus var. deustus) – 24 photos
hotrock penstemon (Penstemon deustus var. variabilis) – 6 photos
lowly penstemon (Penstemon humilis) – 5 photos
lowly penstemon (Penstemon humilis var. humilis) – 24 photos
Palmer's penstemon (Penstemon palmeri) – 16 photos
Palmer's penstemon (Penstemon palmeri var. palmeri) – 1 photo
Richardson's penstemon (Penstemon richardsonii) – 13 photos
Richardson's penstemon (Penstemon richardsonii var. richardsonii) – 24 photos
rock penstemon (Penstemon rupicola) – 61 photos
Rydberg's penstemon (Penstemon rydbergii var. oreocharis) – 36 photos
sand dune penstemon (Penstemon acuminatus) – 15 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) – 15 photos
sharp-leaved penstemon (Penstemon acuminatus var. acuminatus) – 5 photos
showy penstemon (Penstemon speciosus) – 46 photos
shrubby penstemon (Penstemon fruticosus) – 21 photos
shrubby penstemon (Penstemon fruticosus var. fruticosus) – 39 photos
shrubby penstemon (Penstemon fruticosus var. scouleri) – 12 photos
shrubby penstemon (Penstemon fruticosus var. serratus) – 15 photos
small-flowered penstemon (Penstemon procerus) – 22 photos
small-flowered penstemon (Penstemon procerus var. procerus) – 6 photos
small-flowered penstemon (Penstemon procerus var. tolmiei) – 25 photos
sticky-stem penstemon (Penstemon glandulosus var. chelanensis) – 26 photos
sticky-stem penstemon (Penstemon glandulosus var. glandulosus) – 11 photos
sulphur penstemon (Penstemon attenuatus) – 6 photos
sulphur penstemon (Penstemon attenuatus var. attenuatus) – 9 photos
taper-leaved penstemon (Penstemon attenuatus) – 6 photos
taper-leaved penstemon (Penstemon attenuatus var. attenuatus) – 9 photos
Peony
brown's peony (Paeonia brownii) – 41 photos
western peony (Paeonia brownii) – 41 photos
Pepper
salt and pepper (Lomatium gormanii) – 42 photos
water pepper (Persicaria hydropiperoides) – 15 photos
Peppergrass
alkali peppergrass (Lepidium dictyotum) – 4 photos
branched peppergrass (Lepidium ramosissimum) – 10 photos
broad-leaved peppergrass (Lepidium latifolium) – 20 photos
clasping-leaved peppergrass (Lepidium perfoliatum) – 27 photos
coastal peppergrass (Lepidium virginicum ssp. menziesii) – 18 photos
common peppergrass (Lepidium densiflorum) – 16 photos
dull peppergrass (Lepidium ramosissimum) – 5 photos
elongate peppergrass (Lepidium densiflorum) – 16 photos
hairy peppergrass (Lepidium virginicum ssp. menziesii) – 18 photos
hairy-fruited peppergrass (Lepidium densiflorum) – 16 photos
Idaho peppergrass (Lepidium virginicum ssp. menziesii) – 18 photos
large-fruited peppergrass (Lepidium densiflorum) – 16 photos
Menzies' peppergrass (Lepidium virginicum ssp. menziesii) – 18 photos
peppergrass (Lepidium latifolium) – 20 photos
prairie peppergrass (Lepidium densiflorum) – 16 photos
round-leaved peppergrass (Lepidium perfoliatum) – 27 photos
shining peppergrass (Lepidium nitidum) – 26 photos
tall peppergrass (Lepidium virginicum ssp. menziesii) – 18 photos
tall western peppergrass (Lepidium virginicum ssp. menziesii) – 18 photos
veiny peppergrass (Lepidium dictyotum) – 4 photos
yellow-flowered peppergrass (Lepidium perfoliatum) – 27 photos
Peppermint
peppermint (Mentha ×piperita) – 16 photos
Pepperweed
tall pepperweed (Lepidium virginicum) – 1 photo
Pepperwort
broad-leaved pepperwort (Lepidium latifolium) – 20 photos
clasping peppergrass pepperwort (Lepidium perfoliatum) – 27 photos
field peppergrass pepperwort (Lepidium campestre) – 17 photos
forked pepperwort (Lepidium oxycarpum) – 2 photos
hoary pepperwort (Lepidium draba) – 72 photos
pepperwort (Lepidium campestre) – 17 photos
pepperwort (Lepidium perfoliatum) – 27 photos
pepperwort (Marsilea vestita) – 18 photos
sharpfruited pepperwort (Lepidium oxycarpum) – 2 photos
Smith's pepperwort (Lepidium heterophyllum) – 16 photos
water-clover pepperwort (Marsilea vestita) – 18 photos
Periwinkle
greater periwinkle (Vinca major) – 12 photos
lesser periwinkle (Vinca minor) – 13 photos
Pestle
strap-shaped pestle (Clavariadelphus sachalinensis) – 1 photo
Phacelia
Bolander's phacelia (Phacelia bolanderi) – 18 photos
branched phacelia (Phacelia ramosissima) – 18 photos
branched phacelia (Phacelia ramosissima var. ramosissima) – 7 photos
least phacelia (Phacelia minutissima) – 5 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) – 38 photos
silky phacelia (Phacelia sericea var. sericea) – 13 photos
silverleaf phacelia (Phacelia hastata) – 26 photos
silverleaf phacelia (Phacelia hastata var. compacta) – 21 photos
silverleaf phacelia (Phacelia hastata var. hastata) – 33 photos
sticky phacelia (Phacelia glandulifera) – 11 photos
varileaf phacelia (Phacelia heterophylla) – 3 photos
varileaf phacelia (Phacelia heterophylla var. heterophylla) – 44 photos
varileaf phacelia (Phacelia heterophylla var. virgata) – 5 photos
virgate phacelia (Phacelia heterophylla) – 3 photos
whiteleaf phacelia (Phacelia hastata) – 26 photos
whiteleaf phacelia (Phacelia hastata var. compacta) – 21 photos
whiteleaf phacelia (Phacelia hastata var. hastata) – 33 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
clumped phlox (Phlox caespitosa) – 24 photos
clustered phlox (Phlox caespitosa) – 24 photos
Henderson's phlox (Phlox hendersonii) – 10 photos
Hood's phlox (Phlox hoodii) – 30 photos
Hood's phlox (Phlox hoodii ssp. canescens) – 10 photos
long-leaf phlox (Phlox longifolia) – 96 photos
many-flowered phlox (Phlox multiflora) – 16 photos
prickly phlox (Linanthus pungens) – 27 photos
showy phlox (Phlox speciosa) – 255 photos
slender phlox (Microsteris gracilis) – 66 photos
Snake River phlox (Phlox colubrina) – 10 photos
soft phlox (Phlox mollis) – 6 photos
spreading phlox (Phlox diffusa) – 81 photos
sticky phlox (Phlox viscida) – 17 photos
stiff phlox (Phlox caespitosa) – 24 photos
tufted phlox (Phlox caespitosa) – 24 photos
yeti phlox (Phlox solivaga) – 2 photos
Pholiota
bitter Pholiota (Pholiota astragalina) – 2 photos
bristly Pholiota (Pholiota squarrosoides) – 2 photos
destructive Pholiota (Pholiota populnea) – 9 photos
flaming Pholiota (Pholiota flammans) – 5 photos
golden false Pholiota (Phaeolepiota aurea) – 6 photos
golden Pholiota (Pholiota aurivella) – 5 photos
ground Pholiota (Pholiota terrestris) – 6 photos
lemon-yellow Pholiota (Pholiota limonella) – 6 photos
pinkish-orange Pholiota (Pholiota astragalina) – 2 photos
poplar Pholiota (Pholiota populnea) – 9 photos
slender Pholiota (Pholiota spumosa) – 3 photos
terrestrial Pholiota (Pholiota terrestris) – 6 photos
yellow Pholiota (Pholiota flammans) – 5 photos
Pickelweed
pickelweed (Salicornia perennis) – 6 photos
Pickerel-weed
Pickerel-weed (Pontederia cordata) – 2 photos
Pickleweed
pickleweed (Salicornia perennis) – 6 photos
Pig's-ear
pig's-ear (Gomphus clavatus) – 10 photos
Pig's-ears
pig's-ears (Gomphus clavatus) – 10 photos
Pigeonberry
pigeonberry (Phytolacca americana) – 15 photos
Piggyback
powdery piggyback (Asterophora lycoperdoides) – 4 photos
silky piggyback (Asterophora parasitica) – 2 photos
Piggyback-plant
piggyback-plant (Tolmiea menziesii) – 33 photos
Pigweed
green pigweed (Amaranthus hybridus) – 7 photos
pigweed (Chenopodium album) – 13 photos
prostrate pigweed (Amaranthus blitoides) – 9 photos
redroot pigweed (Amaranthus retroflexus) – 16 photos
rough pigweed (Amaranthus retroflexus) – 16 photos
smooth pigweed (Amaranthus hybridus) – 7 photos
white pigweed (Amaranthus albus) – 15 photos
Pillwort
American pillwort (Pilularia americana) – 2 photos
Pimpernel
false pimpernel (Lindernia dubia) – 42 photos
scarlet pimpernel (Lysimachia arvensis) – 48 photos
water pimpernel (Samolus parviflorus) – 11 photos
Pimple
green mushroom pimple (Hypomyces luteovirens) – 1 photo
orange mushroom pimple (Hypomyces lactifluorum) – 6 photos
Pincushion
Thompson's pincushion (Chaenactis thompsonii) – 15 photos
Pincushion-plant
Alva Day's pincushion-plant (Navarretia sinistra) – 5 photos
marigold pincushion-plant (Navarretia tagetina) – 6 photos
yellow pincushion-plant (Navarretia breweri) – 14 photos
Pine
blackjack pine (Pinus ponderosa) – 48 photos
bull pine (Pinus ponderosa) – 48 photos
ground pine (Lycopodium clavatum) – 12 photos
lodgepole pine (Pinus contorta var. latifolia) – 12 photos
ponderosa pine (Pinus ponderosa) – 48 photos
Rocky Mountain ponderosa pine (Pinus ponderosa var. scopulorum) – 1 photo
running pine (Lycopodium clavatum) – 12 photos
shore pine (Pinus contorta var. contorta) – 10 photos
Sierra lodgepole pine (Pinus contorta var. murrayana) – 5 photos
western white pine (Pinus monticola) – 31 photos
western yellow pine (Pinus ponderosa) – 48 photos
white-bark pine (Pinus albicaulis) – 32 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) – 53 photos
Pinegrass
pinegrass (Calamagrostis rubescens) – 24 photos
Pinesap
fringed pinesap (Pleuricospora fimbriolata) – 25 photos
Pink
deptford pink (Dianthus armeria) – 38 photos
Pinkfairies
pinkfairies (Clarkia pulchella) – 38 photos
Pinkgill
big blue pinkgill (Entoloma bloxamii Group (madidum)) – 2 photos
blue-edge pinkgill (Leptonia serrulata) – 3 photos
cream pinkgill (Alboleptonia sericella var. lutescens (Entoloma)) – 1 photo
mousepee pinkgill (Leptonia incana (Entoloma)) – 2 photos
silky pinkgill (Nolanea sericea) – 3 photos
Pinky
pale pinky (Ramaria rubrievanescens) – 3 photos
perma pinky (Ramaria rubripermanens) – 6 photos
Pint
large cuckoo pint (Arum italicum) – 12 photos
Pipsissewa
Pipsissewa (Chimaphila umbellata ssp. umbellata) – 21 photos
Pitchfork
devil's pitchfork (Bidens frondosa) – 16 photos
Plagiobothrys
fragrant plagiobothrys (Plagiobothrys figuratus) – 15 photos
harsh plagiobothrys (Plagiobothrys hispidulus) – 13 photos
Plainsmustard
flax-leaved plainsmustard (Sisymbrium linifolium) – 40 photos
Salmon River plainsmustard (Sisymbrium linifolium) – 40 photos
Plane-tree
American plane-tree (Platanus occidentalis) – 12 photos
Plant
cotton batting plant (Pseudognaphalium stramineum) – 52 photos
gopher plant (Euphorbia lathyris) – 16 photos
money plant (Lunaria annua) – 36 photos
monument plant (Frasera speciosa) – 31 photos
oyster plant (Tragopogon porrifolius) – 24 photos
yellow bee plant (Peritoma lutea) – 50 photos
yellow pitcher plant (Sarracenia flava) – 19 photos
Plantain
Alaska plantain (Plantago macrocarpa) – 3 photos
buck-horn plantain (Plantago coronopus) – 10 photos
common plantain (Plantago major) – 15 photos
English plantain (Plantago lanceolata) – 27 photos
great plantain (Plantago major) – 15 photos
Mexican plantain (Plantago subnuda) – 7 photos
salt marsh plantain (Plantago maritima var. juncoides) – 9 photos
sand plantain (Plantago arenaria) – 17 photos
sea plantain (Plantago maritima) – 11 photos
seaside plantain (Plantago maritima) – 11 photos
slender plantain (Plantago elongata) – 20 photos
tall coastal plantain (Plantago subnuda) – 7 photos
woolly plantain (Plantago patagonica) – 23 photos
Plectritis
long-horn plectritis (Plectritis macrocera) – 36 photos
long-spurred plectritis (Plectritis ciliosa) – 3 photos
rosy plectritis (Plectritis congesta) – 29 photos
shortspur white plectritis (Plectritis brachystemon) – 7 photos
white plectritis (Plectritis macrocera) – 36 photos
Plum
cherry plum (Prunus cerasifera) – 14 photos
cultivated plum (Prunus domestica) – 26 photos
Klamath plum (Prunus subcordata) – 4 photos
wild plum (Prunus subcordata) – 4 photos
Plumeless thistle
Italian plumeless thistle (Carduus pycnocephalus ssp. pycnocephalus) – 3 photos
Plums-and-custard
plums-and-custard (Tricholomopsis rutilans) – 4 photos
Pluteus
black-edged Pluteus (Pluteus atromarginatus) – 4 photos
yellow-stemmed Pluteus (Pluteus romellii (nanus)) – 2 photos
Podfern
podfern (Aspidotis densa) – 27 photos
Poison
fish poison (Croton setigerus) – 22 photos
Poison ivy
western poison ivy (Toxicodendron radicans) – 6 photos
Poison-hemlock
poison-hemlock (Conium maculatum) – 24 photos
Poison-ivy
poison-ivy (Toxicodendron radicans var. rydbergii) – 21 photos
western poison-ivy (Toxicodendron radicans var. rydbergii) – 21 photos
Poison-oak
Pacific poison-oak (Toxicodendron diversilobum) – 32 photos
Poisonpie
sweet poisonpie (Hebeloma sacchariolens) – 3 photos
veiled poisonpie (Hebeloma mesophaeum) – 10 photos
Pokeberry
pokeberry (Phytolacca americana) – 15 photos
Pokeweed
pokeweed (Phytolacca americana) – 15 photos
Polemonium
annual polemonium (Polemonium micranthum) – 31 photos
elegant polemonium (Polemonium elegans) – 32 photos
great polemonium (Polemonium carneum) – 17 photos
polemonium (Polemonium) – 1 photo
salmon polemonium (Polemonium carneum) – 17 photos
showy polemonium (Polemonium pulcherrimum) – 16 photos
sticky polemonium (Polemonium viscosum) – 13 photos
Washington polemonium (Polemonium pectinatum) – 16 photos
western polemonium (Polemonium occidentale) – 21 photos
Polypody
irregular polypody (Polypodium amorphum) – 14 photos
leathery polypody (Polypodium scouleri) – 23 photos
Scouler's polypody (Polypodium scouleri) – 23 photos
western polypody (Polypodium hesperium) – 12 photos
Polypore
birch polypore (Piptoporus betulinus) – 1 photo
bitter iodine polypore (Jahnoporus hirtus) – 3 photos
black-footed polypore (Polyporus badius) – 6 photos
blue cheese polypore (Oligoporus caesius) – 5 photos
blue-capped polypore (Albatrellus flettii) – 3 photos
Bondarzew's polypore (Bondarzewia mesenterica) – 2 photos
bone polypore (Oligoporus obductus) – 1 photo
cinnabar-red polypore (Pycnoporus cinnabarinus) – 3 photos
dye polypore (Phaeolus schweinitzii) – 9 photos
dyer's polypore (Phaeolus schweinitzii) – 9 photos
false tinder polypore (Phellinus igniarius) – 1 photo
flecked-flesh polypore (Phellinus igniarius) – 1 photo
Flett's polypore (Albatrellus flettii) – 3 photos
gelatinous pored polypore (Gloeoporus dichrous) – 2 photos
giant mountain polypore (Bondarzewia mesenterica) – 2 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) – 8 photos
marshmallow polypore (Oligoporus leucospongia) – 3 photos
milk-white toothed polypore (Irpex lacteus) – 1 photo
mossy maze polypore (Cerrena unicolor) – 2 photos
multicolor gilled polypore (Lenzites betulina) – 3 photos
orange sponge polypore (Pycnoporellus alboluteus) – 3 photos
red-belted polypore (Fomitopsis pinicola) – 8 photos
resinous polypore (Ischnoderma resinosum) – 3 photos
rosy polypore (Fomitopsis cajanderi) – 5 photos
rusty-gilled polypore (Gloeophyllum sepiarium) – 2 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) – 1 photo
tuberous polypore (Polyporus tuberaster (decurrens)) – 2 photos
umbrella polypore (Polyporus umbellatus) – 1 photo
veiled polypore (Cryptoporus volvatus) – 4 photos
vermilion polypore (Pycnoporus cinnabarinus) – 3 photos
violet toothed polypore (Trichaptum biforme) – 1 photo
white spongy polypore (Oligoporus leucospongia) – 3 photos
white-gilled polypore (Lenzites betulina) – 3 photos
winter polypore (Polyporus brumalis) – 1 photo
woolly velvet polypore (Onnia tomentosa) – 4 photos
yellow-red gill polypore (Gloeophyllum sepiarium) – 2 photos
Pondweed
Berchtold's pondweed (Potamogeton berchtoldii) – 5 photos
blunt-leaved pondweed (Potamogeton obtusifolius) – 3 photos
broad-leaved pondweed (Potamogeton amplifolius) – 18 photos
clasping-leaved pondweed (Potamogeton richardsonii) – 16 photos
curly pondweed (Potamogeton crispus) – 19 photos
eel-grass pondweed (Potamogeton zosteriformis) – 7 photos
fennel-leaved pondweed (Stuckenia pectinata) – 17 photos
fern pondweed (Potamogeton robbinsii) – 5 photos
flat-stem pondweed (Potamogeton zosteriformis) – 7 photos
floating pondweed (Potamogeton natans) – 13 photos
floating-leaved pondweed (Potamogeton natans) – 13 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) – 13 photos
loddon's pondweed (Potamogeton nodosus) – 12 photos
long-leaved pondweed (Potamogeton nodosus) – 12 photos
ribbon-leaved pondweed (Potamogeton epihydrus) – 19 photos
Richardson's pondweed (Potamogeton richardsonii) – 16 photos
Robbin's pondweed (Potamogeton robbinsii) – 5 photos
sago pondweed (Stuckenia pectinata) – 17 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) – 4 photos
whitestem pondweed (Potamogeton praelongus) – 4 photos
Poplar
lombardy poplar (Populus nigra) – 10 photos
white poplar (Populus alba) – 31 photos
Poppy
California poppy (Eschscholzia californica) – 21 photos
California poppy (Eschscholzia californica ssp. californica) – 2 photos
corn poppy (Papaver rhoeas) – 28 photos
long prickly-head poppy (Papaver argemone) – 9 photos
opium poppy (Papaver somniferum) – 19 photos
Poque
poque (Kopsiopsis hookeri) – 42 photos
Porcini
porcini (Boletus edulis) – 8 photos
Porecrust
common porecrust (Schizophyllum commune) – 8 photos
Potato
duck potato (Sagittaria latifolia) – 24 photos
irish potato (Solanum tuberosum) – 5 photos
small potato (Scleroderma areolatum) – 1 photo
Povertyweed
Nuttall's povertyweed (Blitum nuttallianum) – 14 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) – 4 photos
star-bearing powdercap (Asterophora lycoperdoides) – 4 photos
Prairie coneflower
Upright prairie coneflower (Ratibida columnifera) – 16 photos
Prairie-clover
Blue Mountain prairie-clover (Dalea ornata) – 22 photos
Prairie-crocus
prairie-crocus (Anemone patens) – 2 photos
Pricklegrass
foxtail pricklegrass (Crypsis alopecuroides) – 13 photos
Prickly-pear
brittle prickly-pear (Opuntia fragilis) – 26 photos
little prickly-pear (Opuntia fragilis) – 26 photos
Prickly-poppy
white prickly-poppy (Argemone polyanthemos) – 12 photos
Primrose
butte primrose (Oenothera cespitosa ssp. cespitosa) – 20 photos
cliff dwarf primrose (Douglasia laevigata) – 39 photos
common evening primrose (Oenothera biennis) – 25 photos
fragrant evening primrose (Oenothera cespitosa ssp. cespitosa) – 20 photos
Hooker's evening primrose (Oenothera elata) – 8 photos
long-leaf evening primrose (Taraxia subacaulis) – 34 photos
long-tubed evening primrose (Oenothera flava) – 1 photo
pale evening primrose (Oenothera pallida ssp. pallida) – 19 photos
small-flowered evening primrose (Eremothera minor) – 26 photos
tansy-leaf evening primrose (Taraxia tanacetifolia) – 10 photos
water primrose (Ludwigia hexapetala) – 2 photos
Primrose-willow
floating primrose-willow (Ludwigia peploides) – 1 photo
large-flower primrose-willow (Ludwigia grandiflora) – 9 photos
marsh primrose-willow (Ludwigia palustris) – 21 photos
Prince
the prince (Agaricus augustus) – 11 photos
Prince's-pine
common prince's-pine (Chimaphila umbellata) – 34 photos
common prince's-pine (Chimaphila umbellata ssp. umbellata) – 21 photos
little prince's-pine (Chimaphila menziesii) – 31 photos
prince's-pine (Chimaphila umbellata) – 34 photos
Princess tree
princess tree (Paulownia tomentosa) – 11 photos
Privet
common privet (Ligustrum vulgare) – 6 photos
Professor-weed
professor-weed (Galega officinalis) – 15 photos
Prunes-and-custard
prunes-and-custard (Tricholomopsis decora) – 3 photos
Psathyrella
clustered Psathyrella (Psathyrella piluliformis) – 2 photos
date-colored Psathyrella (Psathyrella spadicea) – 2 photos
ringed Psathyrella (Psathyrella longistriata) – 4 photos
suburban Psathyrella (Psathyrella candolleana) – 5 photos
Psilocybe
blue-haired Psilocybe (Psilocybe cyanofibrillosa) – 1 photo
blueing Psilocybe (Psilocybe cyanescens) – 6 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) – 6 photos
rhododendron Psilocybe (Psilocybe cyanofibrillosa) – 1 photo
Stuntz's Psilocybe (Psilocybe stuntzii) – 3 photos
wavy-capped Psilocybe (Psilocybe cyanescens) – 6 photos
Puccoon
Columbian puccoon (Lithospermum ruderale) – 58 photos
Puddingberry
puddingberry (Cornus canadensis) – 10 photos
Puff-ball
warted puff-ball (Lycoperdon perlatum) – 8 photos
Puffball
Boone's puffball (Calvatia booniana) – 4 photos
dark puffball (Lycoperdon nigrescens) – 1 photo
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) – 8 photos
gem-studded puffball (Lycoperdon perlatum) – 8 photos
grey puffball (Bovista plumbea) – 3 photos
lead-colored puffball (Bovista plumbea) – 3 photos
pear puffball (Lycoperdon pyriforme) – 4 photos
pear-shaped puffball (Lycoperdon pyriforme) – 4 photos
pigskin poison puffball (Scleroderma citrinum) – 2 photos
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) – 4 photos
thick-skinned puffball (Scleroderma citrinum) – 2 photos
tumbling puffball (Bovista pila) – 2 photos
tumbling puffball (Bovista plumbea) – 3 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
Puffs
silver puffs (Uropappus lindleyi) – 11 photos
Purple-eyed grass
purple-eyed grass (Olsynium douglasii) – 41 photos
Purples
long purples (Lythrum salicaria) – 22 photos
Purslane
common purslane (Portulaca oleracea) – 21 photos
Pussy-toes
field pussy-toes (Antennaria neglecta) – 2 photos
silvery pussy-toes (Antennaria argentea) – 8 photos
Pussypaws
pussypaws (Calyptridium umbellatum) – 52 photos
Pussytoes
alpine pussytoes (Antennaria alpina) – 8 photos
alpine pussytoes (Antennaria media) – 23 photos
brown-bract pussytoes (Antennaria umbrinella) – 9 photos
cushion pussytoes (Antennaria dimorpha) – 38 photos
desert pussytoes (Antennaria microphylla) – 82 photos
elegant pussytoes (Antennaria microphylla) – 82 photos
field pussytoes (Antennaria howellii ssp. neodioica) – 7 photos
flagellate pussytoes (Antennaria flagellaris) – 33 photos
Hooker's pussytoes (Antennaria racemosa) – 37 photos
Howell's pussytoes (Antennaria howellii ssp. howellii) – 15 photos
little-leaf pussytoes (Antennaria parvifolia) – 5 photos
low pussytoes (Antennaria dimorpha) – 38 photos
narrowleaved pussytoes (Antennaria stenophylla) – 30 photos
pulvinate pussytoes (Antennaria microphylla) – 82 photos
pygmy pussytoes (Antennaria monocephala) – 1 photo
raceme pussytoes (Antennaria racemosa) – 37 photos
Rocky Mountain pussytoes (Antennaria media) – 23 photos
rosy pussytoes (Antennaria microphylla) – 164 photos
small-leaf pussytoes (Antennaria microphylla) – 82 photos
tall pussytoes (Antennaria anaphaloides) – 19 photos
umber pussytoes (Antennaria umbrinella) – 9 photos
whip pussytoes (Antennaria flagellaris) – 33 photos
woodrush pussytoes (Antennaria luzuloides) – 13 photos
woodrush pussytoes (Antennaria luzuloides ssp. luzuloides) – 24 photos
woolly pussytoes (Antennaria lanata) – 25 photos
Pygmyflower
pygmyflower (Androsace septentrionalis) – 2 photos
Pygmyweed
smooth-seed pygmyweed (Crassula solieri) – 4 photos
wrinkle-seed pygmyweed (Crassula aquatica) – 9 photos
Pyrola
one-sided pyrola (Orthilia secunda) – 42 photos
pink pyrola (Pyrola asarifolia ssp. asarifolia) – 17 photos
pink pyrola (Pyrola asarifolia ssp. bracteata) – 28 photos
toothleaf pyrola (Pyrola dentata) – 7 photos