Life
All (in this database) Plants list (with English common names): Part P
A
B
BU
C
CR
D
E
F
G
H
I
J
K
L
M
MT
N
O
P
PR
Q
R
S
SM
T
U
V
W
Y
Z
Pacific Anemone
(
Anemone multifida
)
Pacific Blackberry
(
Rubus ursinus
)
Pacific Bleeding Heart
(
Dicentra formosa
)
Pacific Coast Iris
(
Iris douglasiana
)
Pacific Dogwood
(
Cornus nuttallii
)
Pacific Hemlock
(
Tsuga heterophylla
)
Pacific Madrone
(
Arbutus menziesii
)
Pacific Mitrewort
(
Mitella trifida
)
Pacific Paintbrush
(
Castilleja litoralis
)
Pacific Peavine
(
Lathyrus vestitus
ssp.
ochropetalus
)
Pacific Poison Oak
(
Rhus diversiloba
)
Pacific Ponderosa Pine
(
Pinus ponderosa
var.
ponderosa
)
Pacific Sagewort
(
Artemisia campestris
)
Pacific Sanicle
(
Sanicula crassicaulis
)
Pacific Silver Fir
(
Abies amabilis
)
Pacific Silverweed
(
Potentilla anserina
ssp.
groenlandica
)
Pacific Strawberry
(
Fragaria vesca
var.
crinita
)
Pacific Waterleaf
(
Hydrophyllum tenuipes
)
Pacific Willow
(
Salix lasiandra
)
Padoga Dogwood
(
Cornus alternifolia
)
Pagumpa milk-vetch
(
Astragalus ensiformis
)
Pahute Weed
(
Suaeda depressa
)
Paiche Wood?
(
Euonymus europaeus
var.
hamiltonianus
)
Pale Wallowa
Painbrush
(
Castilleja oresbia
)
Paintbrush
(
Castilleja
)
Paint-brush Owl-clover
(
Orthocarpus castillejoides
)
Annual
Paintbrush
(
Castilleja exilis
)
Applegate's
Paintbrush
(
Castilleja applegatei
)
Cliff
Paintbrush
(
Castilleja rupicola
)
Cobwebby
Paintbrush
(
Castilleja arachnoidea
)
Cocks-comb
Paintbrush
(
Castilleja crista-galli
)
Common Wallowa
Paintbrush
(
Castilleja chrysantha
)
Cotton
Paintbrush
(
Castilleja arachnoidea
)
Cusick's
Paintbrush
(
Castilleja cusickii
)
Deer
Paintbrush
(
Castilleja cervina
)
Desert
Paintbrush
(
Castilleja chromosa
)
Devil's
Paint-brush
(
Pilosella aurantiaca
)
Elmer's
Paintbrush
(
Castilleja elmeri
)
Fraternal
Paintbrush
(
Castilleja fraterna
)
Frosted
Paintbrush
(
Castilleja pruinosa
)
Hairy
Paintbrush
(
Castilleja pilosa
)
Harsh
Paintbrush
(
Castilleja hispida
)
Magenta
Paintbrush
(
Castilleja parviflora
var.
oreopola
)
Narrow-leaved
Paintbrush
(
Castilleja linariifolia
)
Northwest
Paintbrush
(
Castilleja angustifolia
)
Olympic Mountains
Paintbrush
(
Castilleja parviflora
var.
olympica
)
Oregon-coast
Paintbrush
(
Castilleja litoralis
)
Pacific
Paintbrush
(
Castilleja litoralis
)
Pruinose
Paintbrush
(
Castilleja pruinosa
)
Purple Alpine
Paintbrush
(
Castilleja rubida
)
Rhexia-leaved
Paintbrush
(
Castilleja rhexifolia
)
Rocky Mountain
Paintbrush
(
Castilleja covilleana
)
Rural
Paintbrush
(
Castilleja rustica
)
Rustic
Paintbrush
(
Castilleja rustica
)
Scarlet
Paintbrush
(
Castilleja miniata
)
Slender
Paintbrush
(
Castilleja gracillina
)
Small-flowered
Paintbrush
(
Castilleja parviflora
var.
albida
)
Snow
Paintbrush
(
Castilleja nivea
)
Suksdorf's
Paintbrush
(
Castilleja suksdorfii
)
Sulfur
Paintbrush
(
Castilleja sulphurea
)
Thompson's
Paintbrush
(
Castilleja thompsonii
)
Wawy-leaved
Paintbrush
(
Castilleja applegatei
)
Wenatchee Mountains
Paintbrush
(
Castilleja elmeri
)
Western
Paintbrush
(
Castilleja occidentalis
)
White
Paintbrush
(
Castilleja longispica
)
White
Paintbrush
(
Castilleja pilosa
)
Wyoming
Paintbrush
(
Castilleja linariifolia
)
Yellow
Paintbrush
(
Castilleja chrysantha
)
Yellow
Paintbrush
(
Castilleja flava
)
Yellowish
Paintbrush
(
Castilleja lutescens
)
Painted Buckeye
(
Aesculus sylvatica
)
Painted Cup
(
Castilleja
)
Scarlet
Painted Cup
(
Castilleja coccinea
)
Painted desert milk-vetch
(
Astragalus sophoroides
)
Painted Leaf
(
Euphorbia heterophylla
)
Painted milk-vetch
(
Astragalus ceramicus
)
Painted Trillium
(
Trillium undulatum
)
Painted Wakerobin
(
Trillium undulatum
)
Downy
Painted-cup
(
Castilleja sessiliflora
)
Pairie Cinquefoil
(
Potentilla pensylvanica
)
Cliff
Palace milk-vetch
(
Astragalus deterior
)
Pale bulrush
(
Scirpus pallidus
)
Pale Corydalis
(
Corydalis sempervirens
)
Pale Dogtooth-violet
(
Erythronium grandiflorum
)
Pale Evening-primrose
(
Oenothera pallida
)
Pale Fawn-lily
(
Erythronium grandiflorum
)
Pale Hickory
(
Carya pallida
)
Pale Indian Plantain
(
Cacalia atriplicifolia
)
Dwarf
Pale Indian-paintbrush
(
Castilleja inverta
)
Pale Larkspur
(
Delphinium glaucum
)
Pale Larkspur
(
Delphinium leucophaeum
)
Pale Montia
(
Montia spathulata
)
Pale Morning-glory
(
Calystegia occidentalis
ssp.
occidentalis
var.
occidentalis
)
Pale Persicaria
(
Persicaria lapathifolia
)
Pale scorpion-weed
(
Phacelia pallida
)
Pale Sedge
(
Carex livida
)
Pale Sedge
(
Carex pallescens
)
Pale Smartweed
(
Persicaria lapathifolia
)
Pale Spike-rush
(
Eleocharis palustris
)
Pale St John's-wort
(
Hypericum montanum
)
Pale Toadflax
(
Linaria repens
)
Pale Touch-me-not
(
Impatiens pallida
)
Pale Wallflower
(
Erysimum occidentale
)
Pale Wallowa Painbrush
(
Castilleja oresbia
)
Pale Willow-herb
(
Epilobium roseum
)
Pale Yellow Penstemon
(
Penstemon flavescens
)
Pale-green Wintergreen
(
Pyrola chlorantha
)
Paleseed Plantain
(
Plantago virginica
)
Pale-yellow touch-me-not
(
Impatiens aurella
)
Palish Indian-paintbrush
(
Castilleja pallescens
)
Palish Larkspur
(
Delphinium glaucescens
)
Pallid Milkweed
(
Asclepias cryptoceras
)
Palm Family
(
Arecaceae
)
Alexandra
Palm
(
Archontophoenix alexandrae
)
American Cotton
Palm
(
Washingtonia filifera
)
American Oil
Palm
(
Elaeis oleifera
)
Atherton
Palm
(
Laccospadix australasica
)
Bamboo
Palm
(
Chamaedorea microspadix
)
Bamboo
Palm
(
Chamaedorea seirizii
)
Bangalow
Palm
(
Archontophoenix cunninghamii
)
Black
Palm
(
Caryota rumpha
)
Bottle
Palm
(
Hyophorbe lagenicaulis
)
Cabada
Palm
(
Chrysalidocarpus cabadae
)
Cabbage Tree
Palm
(
Livistona australis
)
Canary Island Date
Palm
(
Phoenix canariensis
)
Carnauba Wax
Palm
(
Copernicia prunifera
)
Central Australian Cabbage
Palm
(
Livistona mariae
)
Chinese Windmill
Palm
(
Trachycarpus fortunei
)
Christmas
Palm
(
Veitchia merrillii
)
Cliff Date
Palm
(
Phoenix rupicola
)
Clustered Fishtail
Palm
(
Caryota mitis
)
Coconut
Palm
(
Cocos nucifera
)
Cohune
Palm
(
Orbignya cohune
)
Cuban Royal
Palm
(
Raystonea regia
)
Date
Palm
(
Phoenix dactylifera
)
Doum
Palm
(
Hyphaene thebaica
)
Dwarf Fan
Palm
(
Livistona muelleri
)
Dwarf Pygmy
Palm
(
Phoenix roebelenii
)
Palmer's Centuryplant
(
Agave palmeri
)
Palmer's Evening-primrose
(
Oenothera palmeri
)
Palmer's milk-vetch
(
Astragalus palmeri
)
Palmer's Penstemon
(
Penstemon palmeria
)
Palmer's scorpion-weed
(
Phacelia palmeri
)
Palmers spectaclepod
(
Dimorphocarpa candicans
)
Cabbage
Palmetto
(
Sabal palmetto
)
Dwarf
Palmetto
(
Sabal minor
)
Louisiana
Palmetto
(
Sabal minor
)
Palmettos
(
Sabal
)
Saw
Palmetto
(
Serenoa repens
)
Silver Saw
Palmetto
(
Acoelorraphe wrightii
)
Texas
Palmetto
(
Sabal mexicana
)
European Fan
Palm
(
Chamaerops humilis
)
Fan
Palm
(
Licuala ramsayi
)
Footstool
Palm
(
Livistona rotundifolia
)
Foxtail
Palm
(
Wodyetia bifurcata
)
Golden Cane
Palm
(
Chrysalidocarpus lutescens
)
Ita
Palm
(
Mauritia flexuosa
)
Ivory Nut
Palm
(
Phytelephas macrocarpa
)
Kentia
Palm
(
Howea forsteriana
)
Kermadec Nikau
Palm
(
Rhopalostylis cheesemanii
)
King
Palm?
(
Archontophoenix cunninghamii
)
Lady
Palm
(
Rhapis excelsa
)
Loulou Lelo
Palm
(
Pritchardia hillebrandii
)
MacArthur
Palm
(
Ptychosperma macarthurii
)
Majestetic
Palm
(
Ravenea rivularis
)
Needle
Palm
(
Rhapidophyllum hystrix
)
Nikau
Palm
(
Rhopalostylis sapida
)
Norfolk
Palm
(
Rhopalostylis baueri
)
Oil
Palm
(
Elaeis guineensis
)
Overtop
Palm
(
Syagrus amara
)
Parlour
Palm
(
Chamaedorea elegans
)
Peach
Palm
(
Bactris gasipes
)
Princess
Palm
(
Dictyosperma album
)
Queen
Palm
(
Arecastrum romanzofficianum
)
Raffia
Palm
(
Raphia farinifera
)
Red Neck
Palm
(
Neodypsis darainii
)
Rootspine
Palm
(
Crysophila warscewiczii
)
Sagisi
Palm
(
Heterospathe elata
)
Sago
Palm
(
Metroxylon sagu
)
San José Hesper
Palm
(
Brahea brandegeei
)
Satake
Palm
(
Satakentia liukiuensis
)
Senegal Date
Palm
(
Phoenix reclinata
)
Silver Data
Palm
(
Phoenix sylvestris
)
Slender Lady
Palm
(
Rhapis humilis
)
Solitaire
Palm
(
Ptychosperma elegans
)
Spindle
Palm
(
Hyophorbe verschaffeltii
)
Spiny Fiber
Palm
(
Trithrinax acanthocoma
)
Triangle
Palm
(
Neodypsis decaryi
)
Washington
Palm
(
Washingtonia robusta
)
Wedding
Palm
(
Microcoelum weddellianum
)
Weeping Cabbage
Palm
(
Livistona decipiens
)
Weeping Fan
Palm
(
Livistona chinensis
)
Windmill
Palm
(
Trachycarpus martianus
)
Wine
Palm
(
Butia capitata
)
Wine
Palm
(
Caryota urens
)
Yellow Latan
Palm
(
Latania vershaffeltii
)
Palmyra
(
Borassus flabellifer
)
Palouse Knotweed
(
Polygonum majus
)
Palouse milk-vetch
(
Astragalus arrectus
)
Palouse Thistle
(
Cirsium brevifolium
)
Pampas Grass?
(
Cortaderia
)
Panamint milk-vetch
(
Astragalus panamintensis
)
Panamint scorpion-weed
(
Phacelia perityloides
)
Panic Grass
(
Panicum
)
Panicled Death-camas
(
Zigadenus paniculatus
)
Panicled Knapweed
(
Centaurea rhenana
)
Fall
Panicum
(
Panicum dichotomiflorum
)
Pansy
(
Viola tricolor
)
Cultivated
Pansy
(
Viola arvensis
)
Field
Pansy
(
Viola arvensis
)
Horned
Pansy
(
Viola cornuta
)
Wild
Pansy
(
Viola arvensis
)
Wild
Pansy
(
Viola tricolor
)
Panther milk-vetch
(
Astragalus pardalinus
)
Papaw
(
Carica papaya
)
Common
Papaw
(
Asimina triloba
)
Papaws
(
Asimina
)
Paper Birch
(
Betula papyrifera
)
Mountain
Paper Birch
(
Betula papyrifera
var.
cordifolia
)
Paper Mulberry
(
Broussonetia papyrifera
)
Baker's
paperflower
(
Psilostrophe bakeri
)
Greenstem
paperflower
(
Psilostrophe sparsiflora
)
Whitestem
paperflower
(
Psilostrophe cooperi
)
Woolly
paperflower
(
Psilostrophe tagetina
)
Paper-mulberries
(
Broussonetia
)
Pappoose Root
(
Caulophyllum thalictroides
)
Papyrus
(
Cyperus papyrus
)
Paradise Poinciana
(
Caesalpinia gilliesii
)
Paradise Tree
(
Ailanthus altissima
)
Paradox milk-vetch
(
Astragalus holmgreniorum
)
Paraguay-tea
(
Ilex paraguariensis
)
Yellow
Parentucella
(
Parentucellia viscosa
)
Parish's scorpion-weed
(
Phacelia parishii
)
Park milk-vetch
(
Astragalus leptaleus
)
North
park scorpion-weed
(
Phacelia formosula
)
Parlin's Dewberry
(
Rubus parlinii
)
Parlour Palm
(
Chamaedorea elegans
)
Grass of
Parnassius
(
Parnassia
)
Parrot's-beak
(
Pedicularis racemosa
)
Parry Pinyon
(
Pinus quadrifolia
)
Parry's Bellflower
(
Campanula parryi
)
Parry's Centuryplant
(
Agave parryi
)
Parry's Clover
(
Trifolium parryi
)
Parry's Harebell
(
Campanula parryi
)
Parry's Knotweed
(
Polygonum parryi
)
Parry's Lousewort
(
Pedicularis parryi
)
Parry's milk-vetch
(
Astragalus parryi
)
Parry's Rabbit-brush
(
Chrysothamnus parryi
)
Parry's scorpion-weed
(
Phacelia parryi
)
Parsley
(
Petroselinum
)
Parsley Family
(
Apiaceae
)
Parsley Fern
(
Cryptogramma crispa
)
Parsley Haw
(
Crataegus marshallii
)
Parsley Hawthorn
(
Crataegus marshallii
)
Parsley Piert
(
Aphanes arvensis
)
Slender
Parsley Piert
(
Aphanes microcarpa
)
Common
Parsley
(
Petroselinum crispum
)
Cow
Parsley
(
Anthriscus sylvestris
)
Fool's
Parsley
(
Aethusa cynapium
)
Garden
Parsley
(
Petroselinum crispum
)
Parsnip
(
Pastinaca
)
Parsnip
(
Peucedanum sativum
)
Cow
Parsnip
(
Heracleum
)
Cow
Parsnip
(
Heracleum sphondylium
)
Parsnip-flowered Eriogonum
(
Eriogonum heracleoides
)
Pestle
Parsnip
(
Lomatium nudicaule
)
Water
Parsnip
(
Sium
)
Wild
Parsnip
(
Pastinaca sativa
)
Partridge Berry
(
Mitchella
)
Partridge Pea
(
Cassia chamaecrista
)
Partridgefoot
(
Luetkea pectinata
)
Sensitive
Partridgepea
(
Cassia nictitans
)
Showy
partridgepea
(
Cassia fasciculata
)
Pasionaria-de-cercas
(
Passiflora berteriana
)
El
paso prickly-pear
(
Opuntia arenaria
)
Pasqueflower
(
Anemone nuttalliana
)
Eastern
Pasqueflower
(
Anemone patens
)
Mountain
Pasqueflower
(
Anemone occidentalis
)
Spring
Pasqueflower
(
Anemone vernalis
)
Western
Pasqueflower
(
Anemone occidentalis
)
Walker
Pass milk-vetch
(
Astragalus ertterae
)
Passion-flower Family
(
Passifloraceae
)
Banana
passion-flower
(
Passiflora mollissima
)
Bird-wing
passion-flower
(
Passiflora tenuiloba
)
Blue-crown
passion-flower
(
Passiflora caerulea
)
Bracted
passion-flower
(
Passiflora affinis
)
Corky-stem
passion-flower
(
Passiflora suberosa
)
Cupped
passion-flower
(
Passiflora bryonioides
)
Fringed
passion-flower
(
Passiflora ciliata
)
Mexican
passion-flower
(
Passiflora mexicana
)
Perfumed
passion-flower
(
Passiflora vitifolia
)
Pineland
passion-flower
(
Passiflora pallens
)
Purple
passion-flower
(
Passiflora incarnata
)
Red
passion-flower
(
Passiflora manicata
)
Scarlet
passion-flower
(
Passiflora coccinea
)
Scarlet-fruit
passion-flower
(
Passiflora foetida
)
Slender
passion-flower
(
Passiflora filipes
)
Tropical
passion-flower
(
Passiflora anadenia
)
Tuberous
passion-flower
(
Passiflora tuberosa
)
Two-flower
passion-flower
(
Passiflora biflora
)
Two-lobe
passion-flower
(
Passiflora bilobata
)
Virgin island
passion-flower
(
Passiflora murucuja
)
White
passion-flower
(
Passiflora subpeltata
)
White-flower
passion-flower
(
Passiflora multiflora
)
Wing-leaf
passion-flower
(
Passiflora bicornis
)
Woodland
passion-flower
(
Passiflora morifolia
)
Yellow
passion-flower
(
Passiflora lutea
)
Pasture Dewberry
(
Rubus biformispinus
)
Pasture Sagewort
(
Artemisia frigida
)
Pasture Thistle
(
Cirsium pumilum
)
Patata
(
Monolepis nuttaliana
)
Patch scorpion-weed
(
Phacelia splendens
)
Patchouli?
(
Pogostemon heyneanus
)
Patterson's milk-vetch
(
Astragalus pattersonii
)
Royal
Paulownia
(
Paulownia tomentosa
)
Paulownias
(
Paulownia
)
Paul's Betony
(
Veronica officinalis
)
Pauper milk-vetch
(
Astragalus misellus
)
Payette Penstemon
(
Penstemon payettensis
)
Payson's Draba
(
Draba paysonii
)
Payson's milk-vetch
(
Astragalus paysonii
)
Pea Family
(
Fabaceae
)
Pea Shrub
(
Caragana arborescens
)
Siberian
Pea Shrub
(
Caragana arborescens
)
Pea Tree
(
Caragana arborescens
)
Beach
Pea
(
Lathyrus japonicus
ssp.
maritimus
)
Black
Pea
(
Lathyrus niger
)
Butterlfy
Pea
(
Clitoria
)
Peach
(
Prunus persica
)
Peach Palm
(
Bactris gasipes
)
Peach Poison Bush
(
Trema aspera
)
Peachleaf Willow
(
Salix amygdaloides
)
Peach-leaved Bellflower
(
Campanula persicifolia
)
Peach-leaved Willow
(
Salix amygdaloides
)
Peacock Larkspur
(
Delphinium pavonaceum
)
Cow
Pea
(
Vigna sinensis
)
Desert rock
pea
(
Lotus rigidus
)
Everlasting
Pea
(
Lathyrus
)
Everlasting
Pea
(
Lathyrus latifolius
)
Fodder
Pea
(
Lathyrus annuus
)
Peafruit Rose
(
Rosa pisocarpa
)
Garden
Pea
(
Pisum sativum
)
Marsh
Pea
(
Lathyrus palustris
)
Narrow-leaved Everlasting
Pea
(
Lathyrus sylvestris
)
Hog
Peanut
(
Amphicarpaea
)
Partridge
Pea
(
Cassia chamaecrista
)
Perennial
Pea
(
Lathyrus latifolius
)
Pear
(
Pyrus communis
)
Anchovy
Pear
(
Grias cauliflora
)
Avocado
Pear
(
Persea gratissima
)
Common
Pear
(
Pyrus communis
)
Pearhip Rose
(
Rosa woodsii
var.
ultramontana
)
Pearl Gromwell
(
Lithospermum officinale
)
Pearlwort Spurrey
(
Spergula morisonii
)
Alpine
Pearlwort
(
Sagina saginoides
)
Bird's-eye
Pearlwort
(
Sagina procumbens
)
Knotted
Pearlwort
(
Sagina nodosa
)
Procumbent
Pearlwort
(
Sagina procumbens
)
Sea
Pearlwort
(
Sagina maritima
)
Pearly Everlasting
(
Anaphalis margaritacea
)
Pears
(
Pyrus
)
Cat
Peas
(
Vicia cracca
)
Sea
Pea
(
Lathyrus japonicus
ssp.
maritimus
)
Spring
Pea
(
Lathyrus vernus
)
Sweet
Pea
(
Lathyrus odoratus
)
Tuberous
Pea
(
Lathyrus tuberosus
)
Peaty Dewberry
(
Rubus adjacens
)
Various-leaved Everlasting
Pea
(
Lathyrus heterophyllus
)
Peavine
(
Lathyrus
)
Beach
Peavine
(
Lathyrus littoralis
)
Bushy
Peavine
(
Lathyrus rigidus
)
Cream-flowered
Peavine
(
Lathyrus ochroleucus
)
Cusick's
Peavine
(
Lathyrus nevadensis
ssp.
cusickii
)
Earth-nut
Peavine
(
Lathyrus tuberosus
)
Few-flowered
Peavine
(
Lathyrus pauciflorus
)
Flat
Peavine
(
Lathyrus sylvestris
)
Flatpod
Peavine
(
Lathyrus cicera
)
Grass
Peavine
(
Lathyrus sativus
)
Grass
Peavine
(
Lathyrus sphaericus
)
Leafy
Peavine
(
Lathyrus polyphyllus
)
Marsh
Peavine
(
Lathyrus palustris
)
Meadow
Peavine
(
Lathyrus pratensis
)
Pacific
Peavine
(
Lathyrus vestitus
ssp.
ochropetalus
)
Rigid
Peavine
(
Lathyrus rigidus
)
Rough
Peavine
(
Lathyrus hirsutus
)
Sierran
Peavine
(
Lathyrus nevadensis
ssp.
nevadensis
)
Tangier
Peavine
(
Lathyrus tingitanus
)
Thick-leaved
Peavine
(
Lathyrus lanszwertii
)
Tiny
Peavine
(
Lathyrus pusillus
)
Torrey's
Peavine
(
Lathyrus torreyi
)
Pecan
(
Carya illinoensis
)
Bitter
Pecan
(
Carya aquatica
)
Peccan
(
Carya olivaeformis
)
Peck's milk-vetch
(
Astragalus peckii
)
Peck's Penstemon
(
Penstemon peckii
)
Peck's scorpion-weed
(
Phacelia peckii
)
Pedicellate scorpion-weed
(
Phacelia pedicellata
)
Pelican-flower
(
Aristolochia grandiflora
)
Pellitory-of-the-wall
(
Parietaria judaica
)
Peltate dutchman's-pipe
(
Aristolochia peltata
)
Arizona
pencil cholla
(
Opuntia arbuscula
)
Pendant Grass
(
Arctophila fulva
var.
pendulina
)
Pennsylvania Bittercress
(
Cardamine pennsylvanica
)
Pennsylvania Blackberry
(
Rubus pensilvanicus
)
Pennsylvania Buttercup
(
Ranunculus pensylvanicus
)
Pennsylvania Cinquefoil
(
Potentilla pensylvanica
)
Field
Penny-cress
(
Thlaspi arvense
)
Garlic
Penny-cress
(
Thlaspi alliaceum
)
Perfoliate
Penny-cress
(
Thlaspi perfoliatum
)
Thoroughwort
Penny-cress
(
Thlaspi perfoliatum
)
Pennyroyal
(
Mentha pulegium
)
Pennyroyal-leaf scorpion-weed
(
Phacelia glechomifolia
)
Pennywort
(
Obolaria
)
Alberta
Penstemon
(
Penstemon albertinus
)
Alpine
Penstemon
(
Penstemon procerus
)
Ash
Penstemon
(
Penstemon cinicola
)
Azure
Penstemon
(
Penstemon azureus
)
Barret's
Penstemon
(
Penstemon barrettiae
)
Bear River
Penstemon
(
Penstemon compactus
)
Beautiful
Penstemon
(
Penstemon venustus
)
Berry's
Penstemon
(
Penstemon newberryi
var.
berryi
)
Blue Mountain
Penstemon
(
Penstemon pennellianus
)
Blue Mountain
Penstemon
(
Penstemon venustus
)
Blue-anthered
Penstemon
(
Penstemon cyananthus
)
Broad-leaved
Penstemon
(
Penstemon ovatus
)
Bush
Penstemon
(
Penstemon fruticosus
)
Cardwell's
Penstemon
(
Penstemon cardwellii
)
Cary's
Penstemon
(
Penstemon caryi
)
Cascade
Penstemon
(
Penstemon serrulatus
)
Cheerful
Penstemon
(
Penstemon laetus
)
Chelan
Penstemon
(
Penstemon pruinosus
)
Cliff
Penstemon
(
Penstemon rupicola
)
Coast
Penstemon
(
Penstemon serrulatus
)
Compact
Penstemon
(
Penstemon compactus
)
Cordroot
Penstemon
(
Penstemon montanus
)
Creeping
Penstemon
(
Penstemon davidsonii
)
Cusick's
Penstemon
(
Penstemon cusickii
)
Cut-leaved
Penstemon
(
Penstemon richardsonii
)
Cyan
Penstemon
(
Penstemon cyaneus
)
Dark-blue
Penstemon
(
Penstemon cyaneus
)
Davidson's
Penstemon
(
Penstemon davidsonii
)
Deep Blue
Penstemon
(
Penstemon azureus
)
Diphyllus
Penstemon
(
Penstemon diphyllus
)
Dwarf
Penstemon
(
Penstemon pumilus
)
Eaton's
Penstemon
(
Penstemon eatonii
)
Elegant
Penstemon
(
Penstemon elegantulus
)
Fine-toothed
Penstemon
(
Penstemon subserratus
)
Firecracker
Penstemon
(
Penstemon eatonii
)
Fuzzytongue
Penstemon
(
Penstemon eriantherus
)
Gairdner's
Penstemon
(
Penstemon gairdneri
)
Gay
Penstemon
(
Penstemon laetus
)
Glandular
Penstemon
(
Penstemon glandulosus
)
Glaucous
Penstemon
(
Penstemon euglaucus
)
Globe
Penstemon
(
Penstemon globosus
)
Golden-tongued
Penstemon
(
Penstemon miser
)
Hotrock
Penstemon
(
Penstemon deustus
)
Idaho
Penstemon
(
Penstemon idahoensis
)
Janish's
Penstemon
(
Penstemon janishiae
)
King's
Penstemon
(
Penstemon kingii
)
Larchleaf
Penstemon
(
Penstemon laricifolius
)
Large-flowered
Penstemon
(
Penstemon grandiflorus
)
Lax
Penstemon
(
Penstemon laxus
)
Lemhi
Penstemon
(
Penstemon lemhiensis
)
Lonely
Penstemon
(
Penstemon elegantulus
)
Loose
Penstemon
(
Penstemon laxus
)
Lovely
Penstemon
(
Penstemon elegantulus
)
Lovely
Penstemon
(
Penstemon venustus
)
Low
Penstemon
(
Penstemon humilis
)
Lowly
Penstemon
(
Penstemon humilis
)
Lyall's
Penstemon
(
Penstemon lyallii
)
Malheur
Penstemon
(
Penstemon miser
)
Matroot
Penstemon
(
Penstemon radicosus
)
Mountain
Penstemon
(
Penstemon montanus
)
Narrowleaf
Penstemon
(
Penstemon angustifolius
var.
angustifolius
)
Narrow-leaved
Penstemon
(
Penstemon seorsus
)
Pale Yellow
Penstemon
(
Penstemon flavescens
)
Palmer's
Penstemon
(
Penstemon palmeria
)
Payette
Penstemon
(
Penstemon payettensis
)
Peck's
Penstemon
(
Penstemon peckii
)
Poverty
Penstemon
(
Penstemon miser
)
Rattan's
Penstemon
(
Penstemon rattanii
)
Red Desert
Penstemon
(
Penstemon arenicola
)
Richardson's
Penstemon
(
Penstemon richardsonii
)
Rock
Penstemon
(
Penstemon rupicola
)
Rockvine
Penstemon
(
Penstemon ellipticus
)
Roezl's
Penstemon
(
Penstemon roezlii
)
Royal
Penstemon
(
Penstemon speciosus
)
Rydbgerg's
Penstemon
(
Penstemon rydbergii
)
Sagittate
Penstemon
(
Penstemon laetus
var.
sagittatus
)
Sand
Penstemon
(
Penstemon arenicola
)
Sand-dune
Penstemon
(
Penstemon acuminatus
)
Sawsepal
Penstemon
(
Penstemon glaber
var.
glaber
)
Scabland
Penstemon
(
Penstemon deustus
)
Scorched
Penstemon
(
Penstemon confertus
)
Scorched
Penstemon
(
Penstemon deustus
)
Sharp-leaved
Penstemon
(
Penstemon acuminatus
)
Shell-leaf
Penstemon
(
Penstemon grandiflorus
)
Shining
Penstemon
(
Penstemon nitidus
)
Short-lobed
Penstemon
(
Penstemon seorsus
)
Showy
Penstemon
(
Penstemon speciosus
)
Shrubby
Penstemon
(
Penstemon fruticosus
)
Siskiyou
Penstemon
(
Penstemon anguineus
)
Slender
Penstemon
(
Penstemon gracilis
)
Small Azure
Penstemon
(
Penstemon parvulus
)
Small-flowered
Penstemon
(
Penstemon procerus
)
Smooth
Penstemon
(
Penstemon glaber
var.
glaber
)
Sticky-stem
Penstemon
(
Penstemon glandulosus
)
Stiffleaf
Penstemon
(
Penstemon aridus
)
Subserrate
Penstemon
(
Penstemon subserratus
)
Sulphur
Penstemon
(
Penstemon attenuatus
)
Taper-leaved
Penstemon
(
Penstemon attenuatus
)
Tiny-bloom
Penstemon
(
Penstemon procerus
)
Tongue-leaved
Penstemon
(
Penstemon anguineus
)
Two-leaved
Penstemon
(
Penstemon diphyllus
)
Very Beautiful
Penstemon
(
Penstemon perpulcher
)
Very Slender
Penstemon
(
Penstemon gracilentus
)
Wallowa
Penstemon
(
Penstemon spatulatus
)
Wasatch
Penstemon
(
Penstemon cyananthus
)
Washington
Penstemon
(
Penstemon washingtonensis
)
Watson's
Penstemon
(
Penstemon watsonii
)
Whipple's
Penstemon
(
Penstemon whippleanus
)
White-flowered
Penstemon
(
Penstemon albidus
)
White-flowered
Penstemon
(
Penstemon pratensis
)
Whorled
Penstemon
(
Penstemon triphyllus
)
Wilcox's
Penstemon
(
Penstemon wilcoxii
)
Yellow
Penstemon
(
Penstemon confertus
)
Pepper
(
Piper nigrum
)
Pepper-and-salt
(
Erigenia
)
Sweet
Pepperbush
(
Clethra alnifolia
)
Peppergrass
(
Lepidium
)
Pepperidge
(
Nyssa
)
Pepperidge
(
Nyssa sylvatica
)
Japan
Pepper
(
Zanthoxylum piperitum
)
Melegueta
Pepper
(
Aframomum melegueta
)
Peppermint
(
Mentha piperita
)
Pepper-saxifrage
(
Silaum silaus
)
Pepper-vine
(
Cissus arborea
)
Water
Pepper
(
Persicaria hydropiperoides
var.
hydropiperoides
)
Pepperweed
(
Lepidium
)
Branched
Pepperweed
(
Lepidium ramosissimum
)
Broad-leaved
Pepperweed
(
Lepidium latifolium
)
Clasping
Pepperweed
(
Lepidium perfoliatum
)
Common
Pepperweed
(
Lepidium densiflorum
)
Greenflower
Pepperweed
(
Lepidium densiflorum
)
Montane
Pepperweed
(
Lepidium montanum
)
Narrowleaf
Pepperweed
(
Lepidium ruderale
)
Perennial
Pepperweed
(
Lepidium latifolium
)
Prairie
Pepperweed
(
Lepidium densiflorum
)
Sharpfruited
Pepperweed
(
Lepidium oxycarpum
)
Shining
Pepperweed
(
Lepidium nitidum
)
Tall
Pepperweed
(
Lepidium virginicum
)
Upright
Pepperweed
(
Lepidium strictum
)
Veiny
Pepperweed
(
Lepidium dictyotum
)
Virginia
Pepperweed
(
Lepidium virginicum
)
American
Pepperwort
(
Lepidium virginicum
)
Argentine
Pepperwort
(
Lepidium bonariense
)
Field
Pepperwort
(
Lepidium campestre
)
Narrow-leaved
Pepperwort
(
Lepidium ruderale
)
Perfoliate
Pepperwort
(
Lepidium perfoliatum
)
Poor Man's
Pepperwort
(
Lepidium virginicum
)
Gutta
Percha
(
Palaquium gutta
)
Perennial caltrop
(
Kallstroemia perennans
)
Perennial Cornflower
(
Centaurea montana
)
Perennial Flax
(
Linum perenne
)
Perennial Goosefoot
(
Chenopodium bonus-henricus
)
Perennial Knawel
(
Scleranthus perennis
)
Perennial Pea
(
Lathyrus latifolius
)
Perennial Pepperweed
(
Lepidium latifolium
)
Perennial Pigweed
(
Amaranthus deflexus
)
Perennial Ray
(
Lolium perenne
)
Perennial Rye-grass
(
Lolium perenne
)
Perennial Sheep's-bit
(
Jasione laevis
)
Perennial Sow Thistle
(
Sonchus arvensis
)
Perennial Stanleya
(
Stanleya viridiflora
)
Perennial Wall-rocket
(
Diplotaxis tenuifolia
)
Perfoliate Honeysuckle
(
Lonicera caprifolium
)
Perfoliate Penny-cress
(
Thlaspi perfoliatum
)
Perfoliate Pepperwort
(
Lepidium perfoliatum
)
Perfoliate Pondweed
(
Potamogeton perfoliatus
)
Perforate St John's-wort
(
Hypericum perforatum
)
Perfumed Cherry
(
Prunus mahaleb
)
Perfumed passion-flower
(
Passiflora vitifolia
)
Periwinkle
(
Vinca
)
Periwinkle Phlox
(
Phlox adsurgens
)
Common
Periwinkle
(
Vinca minor
)
Greater
Periwinkle
(
Vinca major
)
Lesser
Periwinkle
(
Vinca minor
)
Perseas
(
Persea
)
Persian catmint
(
Nepeta mussinii
)
Persian Darnel
(
Lolium persicum
)
Persian goat grass
(
Aegilops crassa
)
Persian Lilac
(
Melia azedarach
)
Persian Speedwell
(
Veronica persica
)
Pale
Persicaria
(
Persicaria lapathifolia
)
Common
Persimmon
(
Diospyros virginiana
)
Persimmons
(
Diospyros
)
Persistent Wakerobin
(
Trillium persistens
)
Persistent-flower scorpion-weed
(
Phacelia marcescens
)
Apple of
Peru
(
Nicandra
)
Marvel of
Peru
(
Mirabilis jalapa
)
Pestle Parsnip
(
Lomatium nudicaule
)
Petalless Campion?
(
Silene uralensis
)
Petalless Campion?
(
Silene wahlbergella
)
St
Peter's-Wort
(
Ascyrum
)
St
Peter's-Wort
(
Ascyrum stans
)
Petty Spurge
(
Euphorbia peplus
)
Petunia
(
Petunia
)
Bolander's
Phacelia
(
Phacelia bolanderi
)
Branched
Phacelia
(
Phacelia ramosissima
)
Dwarf
Phacelia
(
Phacelia tetramera
)
Franklin's
Phacelia
(
Phacelia franklinii
)
Glandular
Phacelia
(
Phacelia glandulosa
)
Hoary
Phacelia
(
Phacelia incana
)
Hot-spring
Phacelia
(
Phacelia thermalis
)
Idaho
Phacelia
(
Phacelia idahoensis
)
Least
Phacelia
(
Phacelia minutissima
)
Low
Phacelia
(
Phacelia humilis
)
Lyall's
Phacelia
(
Phacelia lyallii
)
Rattan's
Phacelia
(
Phacelia rattanii
)
Shade
Phacelia
(
Phacelia nemoralis
)
Silky
Phacelia
(
Phacelia sericea
)
Silverleaf
Phacelia
(
Phacelia hastata
)
Sticky
Phacelia
(
Phacelia glandulifera
)
Tall
Phacelia
(
Phacelia procera
)
Threadleaf
Phacelia
(
Phacelia linearis
)
Two-color
Phacelia
(
Phacelia bicolor
)
Varileaf
Phacelia
(
Phacelia heterophylla
)
Virgate
Phacelia
(
Phacelia heterophylla
)
Whiteleaf
Phacelia
(
Phacelia hastata
)
Woodland
Phacelia
(
Phacelia nemoralis
)
Yellow
Phacelia
(
Phacelia lutea
)
Pheasant's-eye
(
Adonis annua
)
Pheasant's-eye Daffodil
(
Narcissus poeticus
)
Pheasant's-eye Narcissus
(
Narcissus poeticus
)
Summer
Pheasant's-eye
(
Adonis aestivalis
)
Philadelphia Lily
(
Lilium philadelphicum
)
Phlox
(
Phlox
)
Phlox Family
(
Polemoniaceae
)
Alyssum-leaved
Phlox
(
Phlox alyssifolia
)
Blue
Phlox
(
Phlox divaricata
)
Clearwater
Phlox
(
Phlox idahonis
)
Clumped
Phlox
(
Phlox caespitosa
)
Cushion
Phlox
(
Phlox pulvinata
)
Desert
Phlox
(
Phlox austromontana
)
Henderson's
Phlox
(
Phlox hendersonii
)
Hood's
Phlox
(
Phlox hoodii
)
Kelsey's
Phlox
(
Phlox kelseyi
)
Long-leaf
Phlox
(
Phlox longifolia
)
Many-flowered
Phlox
(
Phlox multiflora
)
Moss
Phlox
(
Phlox muscoides
)
Periwinkle
Phlox
(
Phlox adsurgens
)
Prickly
Phlox
(
Leptodactylon pungens
)
Prickly-leaved
Phlox
(
Phlox aculeata
)
Showy
Phlox
(
Phlox speciosa
)
Snake River
Phlox
(
Phlox colubrina
)
Spreading
Phlox
(
Phlox diffusa
)
Sticky
Phlox
(
Phlox viscida
)
Tufted
Phlox
(
Phlox caespitosa
)
White-margined
Phlox
(
Phlox albomarginata
)
Woodland
Phlox
(
Phlox adsurgens
)
Physic Nut Plant?
(
Jatropha curcas
)
Culver's
Physic
(
Veronica virginica
)
Picabo milk-vetch
(
Astragalus oniciformis
)
Pickleweed
(
Salicornia virginica
)
Picther-Plants
(
Nepenthes
)
Parsley
Piert
(
Aphanes arvensis
)
Slender Parsley
Piert
(
Aphanes microcarpa
)
Pigeon Grape
(
Vitis aestivalis
)
Pigeon Grass
(
Setaria glauca
)
Pignut Hickory
(
Carya glabra
)
Oval
Pignut Hickory
(
Carya glabra
var.
odorata
)
Sweet
Pignut Hickory
(
Carya glabra
var.
odorata
)
Pigweed
(
Chenopodium
)
Pigweed
(
Chenopodium album
)
Perennial
Pigweed
(
Amaranthus deflexus
)
Prostrate
Pigweed
(
Amaranthus blitoides
)
Redroot
Pigweed
(
Amaranthus retroflexus
)
Russian
Pigweed
(
Axyris amaranthoides
)
Short-tepalled
Pigweed
(
Amaranthus graecizans
)
Tumble
Pigweed
(
Amaranthus albus
)
White
Pigweed
(
Amaranthus albus
)
Pill Sedge
(
Carex pilulifera
)
Pillwort
(
Pilularia globulifera
)
Pimbina
(
Viburnum opulus
var.
americanum
)
Pimbina
(
Viburnum pauciflorum
)
Pimenta
(
Pimenta officinalis
)
Pimpernel
(
Anagallis
)
Blue
Pimpernel
(
Anagallis foemina
)
Common
Pimpernel
(
Anagallis arvensis
)
Scarlet
Pimpernel
(
Anagallis arvensis
)
Water
Pimpernel
(
Samolus
)
Water
Pimpernel
(
Veronica anagallis-aquatica
)
Yellow
Pimpernel
(
Taenidia
)
Pin Cherry
(
Prunus pensylvanica
)
Pin Oak
(
Quercus palustris
)
Northern
Pin Oak
(
Quercus ellipsoidalis
)
Pinchot's juniper
(
Juniperus pinchotii
)
Pinckneya
(
Pinckneya pubens
)
Pine Family
(
Pinaceae
)
Pine Lupine
(
Lupinus albicaulis
)
Lone
pine milk-vetch
(
Astragalus sepultipes
)
Pine valley milk-vetch
(
Astragalus straturensis
)
Apache
Pine
(
Pinus engelmannii
)
Pineapple
(
Ananas sativus
)
Pineapple-weed
(
Matricaria discoidea
)
Arizona
Pine
(
Pinus ponderosa
var.
arizonica
)
Arolla
Pine
(
Pinus cembra
)
Austrian
Pine
(
Pinus nigra
)
Bank
Pine
(
Pinus banksiana
)
Pine-barren Goldenrod
(
Solidago fistulosa
)
Bishop
Pine
(
Pinus muricata
)
Black
Pine
(
Pinus contorta
)
Black
Pine
(
Pinus rigida
)
Blackjack
Pine
(
Pinus ponderosa
)
Bull
Pine
(
Pinus ponderosa
)
Bur
Pine
(
Pinus pungens
)
Chihuahua
Pine
(
Pinus leiophylla
var.
chihuahuana
)
Coast
Pine
(
Pinus contorta
)
Coulter
Pine
(
Pinus coulteri
)
Pinedrops
(
Pterospora
)
Pinedrops
(
Pterospora andromedea
)
Eastern White
Pine
(
Pinus strobus
)
European Black
Pine
(
Pinus nigra
)
Foxtail
Pine
(
Pinus balfouriana
)
Georgia
Pine
(
Pinus palustris
)
Gray
Pine
(
Pinus banksiana
)
Gray
Pine
(
Pinus sabiniana
)
Great Basin Bristlecone
Pine
(
Pinus longaeva
)
Hard
Pine
(
Pinus rigida
)
Interior Ponderosa
Pine
(
Pinus ponderosa
var.
scopulorum
)
Jack
Pine
(
Pinus banksiana
)
Jack
Pine
(
Pinus rigida
)
Jeffrey
Pine
(
Pinus jeffreyi
)
Jersey
Pine
(
Pinus virginiana
)
Knobcone
Pine
(
Pinus attenuata
)
Pineland Dewberry
(
Rubus hypolasius
)
Pineland figwort
(
Scrophularia parviflora
)
Pineland passion-flower
(
Passiflora pallens
)
Limber
Pine
(
Pinus flexilis
)
Loblolly
Pine
(
Pinus taeda
)
Lodgepole
Pine
(
Pinus contorta
)
Longleaf
Pine
(
Pinus palustris
)
Long-leaved
Pine
(
Pinus palustris
)
Marsh
Pine
(
Pinus serotina
)
Pinemat Manzanita
(
Arctostaphylos nevadensis
)
Monterey
Pine
(
Pinus radiata
)
Mountain
Pine
(
Pinus mugo
)
Northen Running
Pine
(
Diphasiastrum complanatum
)
Northern Scrub
Pine
(
Pinus banksiana
)
Norway
Pine
(
Pinus resinosa
)
Oldfield
Pine
(
Pinus echinata
)
Oldfield
Pine
(
Pinus taeda
)
Pacific Ponderosa
Pine
(
Pinus ponderosa
var.
ponderosa
)
Pitch
Pine
(
Pinus rigida
)
Pocosin
Pine
(
Pinus serotina
)
Pond
Pine
(
Pinus serotina
)
Ponderosa
Pine
(
Pinus ponderosa
)
Pondosa
Pine
(
Pinus ponderosa
)
Poverty
Pine
(
Pinus pungens
)
Prickly Cone
Pine
(
Pinus pungens
)
Prince's
Pine
(
Chimaphila umbellata
)
Red
Pine
(
Pinus resinosa
)
Rocky Mountain Bristlecone
Pine
(
Pinus aristata
)
Rocky Mountain Lodgepole
Pine
(
Pinus contorta
var.
latifolia
)
Rosemary
Pine
(
Pinus echinata
)
Pines
(
Pinus
)
Sand
Pine
(
Pinus clausa
)
Pinesap
(
Monotropa
)
Pinesap
(
Monotropa hypopitys
)
Scotch
Pine
(
Pinus sylvestris
)
Scots
Pine
(
Pinus sylvestris
)
Scrub
Pine
(
Pinus contorta
)
Scrub
Pine
(
Pinus virginiana
)
Shore
Pine
(
Pinus contorta
)
Shore
Pine
(
Pinus contorta
var.
contorta
)
Shortleaf
Pine
(
Pinus echinata
)
Sierra lodgepole
Pine
(
Pinus contorta
var.
latifolia
)
Slash
Pine
(
Pinus elliottii
)
Southern Running
Pine
(
Diphasiastrum digitatum
)
Southwestern White
Pine
(
Pinus strobiformis
)
Spruce
Pine
(
Pinus banksiana
)
Spruce
Pine
(
Pinus glabra
)
Sugar
Pine
(
Pinus lambertiana
)
Table Mountain
Pine
(
Pinus pungens
)
Tamarack
Pine
(
Pinus contorta
)
Torrey
Pine
(
Pinus torreyana
)
Virginia
Pine
(
Pinus virginiana
)
Walter
Pine
(
Pinus glabra
)
Washoe
Pine
(
Pinus washoensis
)
Pineweed
(
Hypericum gentianoides
)
Western White
Pine
(
Pinus monticola
)
Western Yellow
Pine
(
Pinus ponderosa
)
White
Pine
(
Pinus strobus
)
Whitebark
Pine
(
Pinus albicaulis
)
Pinewoods Lousewort
(
Pedicularis semibarbata
)
Yellow
Pine
(
Pinus echinata
)
Yellow
Pine
(
Pinus palustris
)
Yellow
Pine
(
Pinus ponderosa
)
Yellow
Pine
(
Pinus rigida
)
Pink
(
Dianthus
)
Pink Buttercup
(
Ranunculus andersonii
)
Pink Elephants
(
Pedicularis groenlandica
)
Pink Family
(
Caryophyllaceae
)
Pink Fawn-lily
(
Erythronium revolutum
)
Pink Mokeyflower
(
Mimulus lewisii
)
Pink Mountain-heath
(
Phyllodoce empetriformis
)
Indian
Pink Root
(
Spigelia marilandica
)
Pink Sandverbena
(
Abronia umbellana
)
Pink Shepherd's-purse
(
Capsella rubella
)
Pink Trout-lily
(
Erythronium revolutum
)
Pink Water-speedwell
(
Veronica catenata
)
Common
Pink Winterleaf
(
Pyrola asarifolia
)
Carthusian
Pink
(
Dianthus carthusianorum
)
Deptford
Pink
(
Dianthus armeria
)
Grass
Pink
(
Dianthus armeria
)
Ground
Pink
(
Phlox subulata
)
Maiden
Pink
(
Dianthus deltoides
)
Moss
Pink
(
Phlox subulata
)
Sand
Pink
(
Dianthus arenarius
)
Pinnate Poppy
(
Papaver argemone
)
Pinnate Spleenwort
(
Asplenium montanum
×
pinnatifidum
)
Pinnate Tansymustard
(
Descurainia pinnata
)
Pinnate-leaved Angelica
(
Angelica pinnata
)
Pinnatifid Spleenwort
(
Asplenium pinnatifidum
)
Pinole Clover
(
Trifolium bifidum
)
Pinto Violet
(
Viola ocellata
)
Pinxter Flower
(
Rhododendron nudiflorum
)
Pinyon milk-vetch
(
Astragalus pinonis
)
Mexican
Pinyon
(
Pinus cembroides
)
Parry
Pinyon
(
Pinus quadrifolia
)
Singleleaf
pinyon
(
Pinus monophylla
)
True
pinyon
(
Pinus edulis
)
Pioneer Violet
(
Viola glabella
)
Indian
Pipe Family
(
Monotropaceae
)
Dutchman's
Pipe
(
Aristolochia macrophylla
)
Indian
Pipe
(
Monotropa
)
Indian
Pipe
(
Monotropa uniflora
)
Piper's Anemone
(
Anemone piperi
)
Piper's Bellflower
(
Campanula piperi
)
Piper's Desert-parsley
(
Lomatium gormanii
)
Piper's Harebell
(
Campanula piperi
)
Piper's milk-vetch
(
Astragalus riparius
)
Pipevine
(
Aristolochia macrophylla
)
Pipsissewa
(
Chimaphila
)
Pipsissewa
(
Chimaphila umbellata
)
Pistachio nut
(
Pistacia vera
)
Pitch Pine
(
Pinus rigida
)
Pitcher-plant Family
(
Sarraceniaceae
)
Taccada
Pith?
(
Scaevola koenigii
)
Pitseed Goosefoot
(
Chenopodium berlandieri
)
Pitted Morning-glory
(
Ipomoea lacunosa
)
Pitted Quillwort
(
Isoetes foveolata
)
Pittsford Wood Fern
(
Dryopteris marginalis
×
spinulosa
)
Coastal
Plain Willow
(
Salix caroliniana
)
Plains Blackberry
(
Rubus laudatus
)
Plains Coreopsis
(
Coreopsis tinctoria
)
Plains gumweed
(
Grindelia oolepis
)
Plains milk-vetch
(
Astragalus gilviflorus
)
Plains orophaca
(
Astragalus gilviflorus
)
Plait-leaf Dewberry
(
Rubus plicatifolius
)
Planeleaf Willow
(
Salix planifolia
)
Planertree
(
Planera
)
Planertree
(
Planera aquatica
)
Plane-tree Family
(
Platanaceae
)
American
Plane-tree
(
Platanus occidentalis
)
London
Plane-tree
(
Platanus
×
acerifolia
)
Oriental
Plane-tree
(
Platanus orientalis
)
Plane-trees
(
Platanus
)
'Plantain'
(
Musa paradisiaca
)
Plantain
(
Plantago
)
Plantain
(
Plantago lagopus
)
Plantain Family
(
Plantaginaceae
)
Alaska
Plantain
(
Plantago macrocarpa
)
Alkali
Plantain
(
Plantago eriopoda
)
Branched
Plantain
(
Plantago arenaria
)
Broadleaf
Plantain
(
Plantago major
)
Buckhorn
Plantain
(
Plantago lanceolata
)
Buck's-horn
Plantain
(
Plantago coronopus
)
Common
Plantain
(
Plantago major
)
Crowfoot
Plantain
(
Plantago coronopus
)
Dwarf
Plantain
(
Plantago pusilla
)
English
Plantain
(
Plantago lanceolata
)
Great
Plantain
(
Plantago major
)
Great Indian
Plantain
(
Cacalia reniformis
)
Hoary
Plantain
(
Plantago media
)
Indian
Plantain
(
Cacalia
)
Large Bracted
Plantain
(
Plantago aristata
)
Plantainleaved Buttercup
(
Ranunculus alismaefolius
var.
alismaefolius
)
Dwarf
Plantainleaved Buttercup
(
Ranunculus alismaefolius
var.
alismellus
)
Mexican
Plantain
(
Plantago hirtella
)
Pale Indian
Plantain
(
Cacalia atriplicifolia
)
Paleseed
Plantain
(
Plantago virginica
)
Rattlesnake
Plantain
(
Goodyera
)
Ribwort
Plantain
(
Plantago lanceolata
)
Robin's
Plantain
(
Erigeron pulchellus
)
Saline
Plantain
(
Plantago eriopoda
)
Sand
Plantain
(
Plantago psyllium
)
Sea
Plantain
(
Plantago maritima
)
Seaside
Plantain
(
Plantago decipiens
)
Seaside
Plantain
(
Plantago maritima
)
Slender
Plantain
(
Plantago elongata
)
Tweedy's
Plantain
(
Plantago tweedyi
)
Water
Plantain
(
Alisma
)
Woolly
Plantain
(
Plantago patagonica
)
Castor-oil
Plant
(
Ricinus communis
)
Ceara Rubber
Plant
(
Manihot glaziovii
)
Corpse
Plant
(
Monotropa uniflora
)
Grapple
plant
(
Harpagophytum procumbens
)
Hardy Ice
Plant
(
Delosperma cooperi
)
Hevea Rubber
Plant
(
Hevea brasiliensis
)
Ice
Plant
(
Delosperma
)
Meni Oil
Plant
(
Lophira alata
)
Mole
Plant
(
Euphorbia lathyrus
)
Physic Nut
Plant?
(
Jatropha curcas
)
Shoo-fly
Plant
(
Nicandra physalodes
)
Spider
Plants
(
Chlorophytum
)
Tea
Plant
(
Camellia sinensis
)
Tung Oil
Plant
(
Aleurites fordii
)
Wild Sensitive
Plant
(
Cassia nictitans
)
Platain-leaved Everlasting
(
Antennaria plantaginifolia
)
Pocono
Plateau Dewberry
(
Rubus porteri
)
Plateau Gooseberry
(
Ribes velutinum
var.
velutinum
)
Plateau milk-vetch
(
Astragalus serpens
)
Edwards
Plateau milk-vetch
(
Astragalus pleianthus
)
Plateau oak
(
Quercus fusiformis
)
Plateau scorpion-weed
(
Phacelia rafaelensis
)
Platte River milk-vetch
(
Astragalus plattensis
)
Playa yellow scorpion-weed
(
Phacelia inundata
)
Plectritis
(
Plectritis
)
Longhorn
Plectritis
(
Plectritis macrocera
)
Rosy
Plectritis
(
Plectritis congesta
)
White
Plectritis
(
Plectritis macrocera
)
Pleurisy-root
(
Asclepias tuberosa
)
Pliant milk-vetch
(
Astragalus flexuosus
)
Plicate Sweet-grass
(
Glyceria notata
)
Plum
(
Prunus domestica
)
Date
Plum tree?
(
Diospyros lotus
)
Kaki
Plum tree?
(
Diospyros kaki
)
Allegheny
Plum
(
Prunus alleghaniensis
)
American
Plum
(
Prunus americana
)
American Wild
Plum
(
Prunus americana
)
Beach
Plum
(
Prunus maritima
)
Bigtree
Plum
(
Prunus mexicana
)
Buffalo
Plum
(
Astragalus crassicarpus
)
Canadian
Plum
(
Prunus nigra
)
Cherry
Plum
(
Prunus cerasifera
)
Chickasaw
Plum
(
Prunus angustifolia
)
Coco
Plum
(
Chrysobalanus icaco
)
Plumed Clover
(
Trifolium plumosum
)
Plumed Thistle
(
Cirsium
)
Plumeless Thistle
(
Carduus
)
Plumeless Thistle
(
Carduus acanthoides
)
Prince's
Plume
(
Stanleya
)
Prince's
Plume
(
Stanleya pinnata
)
European
Plum
(
Prunus domestica
)
Flatwoods
Plum
(
Prunus umbellata
)
Garden
Plum
(
Prunus domestica
)
Hog
Plum
(
Spondias mangifera
)
Hog
Plum
(
Prunus umbellata
)
Hortulan
Plum
(
Prunus hortulana
)
Indian
Plum
(
Osmaronia cerasiformis
)
Klamath
Plum
(
Prunus subcordata
)
Mammee Sapote
Plum
(
Lucuma mammosa
)
Porter
Plum
(
Prunus alleghaniensis
)
Plums
(
Prunus
)
Sand
Plum
(
Prunus angustifolia
var.
watsoni
)
Sapodilla
Plum
(
Achras sapota
)
Wild
Plum
(
Prunus americana
)
Wild
Plum
(
Prunus nigra
)
Wild
Plum
(
Prunus subcordata
)
Wild Goose
Plum
(
Prunus hortulana
)
Wild Goose
Plum
(
Prunus munsoniana
)
Wild Red
Plum
(
Prunus americana
)
Wild Yellow
Plum
(
Prunus americana
)
Pocono Plateau Dewberry
(
Rubus porteri
)
Pocosin Pine
(
Pinus serotina
)
Cassia
Pods
(
Cassia fistula
)
Poet's Narcissus
(
Narcissus poeticus
)
Paradise
Poinciana
(
Caesalpinia gilliesii
)
Pointed Draba
(
Draba apiculata
)
Pointed gumweed
(
Grindelia fastigiata
)
Pointed Mariposa Lily
(
Calochortus apiculatus
)
Pointleaf Manzanita
(
Arctostaphylos pungens
)
Peach
Poison Bush
(
Trema aspera
)
Poison Dogwood
(
Rhus vernix
)
Poison Elder
(
Rhus vernix
)
Poison Hemlock
(
Conium
)
Poison Hemlock
(
Conium maculatum
)
Poison Ivy
(
Rhus diversiloba
)
Poison Ivy
(
Rhus radicans
)
Poison Larkspur
(
Delphinium trolliifolium
)
Poison Oak
(
Rhus diversiloba
)
Poison Oak
(
Rhus radicans
)
Pacific
Poison Oak
(
Rhus diversiloba
)
Poison oaks
(
Rhus
)
Poison Rye-grass
(
Lolium temulentum
)
Poison Sumac
(
Rhus vernix
)
Beaver
Poison
(
Cicuta maculata
)
Poison-ives
(
Rhus
)
Eastern
Poison-ivy
(
Rhus radicans
)
Poison-vetch
(
Astragalus
)
Poke Milkweed
(
Asclepias phytolaccoides
)
Indian
Poke
(
Veratrum viride
)
Pokeweed
(
Polygonum phytolaccaefolium
)
Pokeweed Family
(
Phytolaccaceae
)
Polar milk-vetch
(
Astragalus polaris
)
Polargrass
(
Arctagrostis latifolia
)
Polemonium Family
(
Polemoniaceae
)
Annual
Polemonium
(
Polemonium micranthum
)
Elegant
Polemonium
(
Polemonium elegans
)
Great
Polemonium
(
Polemonium carneum
)
Littlebells
Polemonium
(
Polemonium micranthum
)
Salmon
Polemonium
(
Polemonium carneum
)
Showy
Polemonium
(
Polemonium pulcherrimum
)
Skunk
Polemonium
(
Polemonium viscosum
)
Skunk-leaved
Polemonium
(
Polemonium pulcherrimum
)
Sticky
Polemonium
(
Polemonium viscosum
)
Policeman's-helmet
(
Impatiens glandulifera
)
Pollock's Mill Blackberry
(
Rubus gnarus
)
Fringed
Polygala
(
Polygala paucifolia
)
Polypody
(
Polypodium virginianum
)
Polypody
(
Polypodium vulgare
)
Rabbitfoot
Polypogon
(
Polypogon monspeliensis
)
Pomegranate
(
Punica granatum
)
Pomo-celery Lomatium
(
Lomatium utriculatum
)
Pomona milk-vetch
(
Astragalus pomonensis
)
Pond Ferns
(
Azolla
)
Pond Pine
(
Pinus serotina
)
Pond Spice
(
Litsea geniculata
)
Pond Water-crowfoot
(
Ranunculus peltatus
ssp.
peltatus
)
Pondcypress
(
Taxodium distichum
var.
nutans
)
Ponderosa Pine
(
Pinus ponderosa
)
Interior
Ponderosa Pine
(
Pinus ponderosa
var.
scopulorum
)
Pacific
Ponderosa Pine
(
Pinus ponderosa
var.
ponderosa
)
Pondosa Pine
(
Pinus ponderosa
)
Great
Pond-sedge
(
Carex riparia
)
Lesser
Pond-sedge
(
Carex acutiformis
)
Pondweed
(
Potamogeton
)
Pondweed Family
(
Najadaceae
)
Blunt-leaved
Pondweed
(
Potamogeton obtusifolius
)
Bog
Pondweed
(
Potamogeton polygonifolius
)
Broad-leaved
Pondweed
(
Potamogeton natans
)
Curled
Pondweed
(
Potamogeton crispus
)
Curlyleaf
Pondweed
(
Potamogeton crispus
)
Fennel
Pondweed
(
Potamogeton pectinatus
)
Fennel-leaved
Pondweed
(
Potamogeton pectinatus
)
Fineleaf
Pondweed
(
Potamogeton filiformis
)
Flat-stalked
Pondweed
(
Potamogeton friesii
)
Floatingleaf
Pondweed
(
Potamogeton natans
)
Fries
Pondweed
(
Potamogeton friesii
)
Grass-wrack
Pondweed
(
Potamogeton compressus
)
Grassy
Pondweed
(
Potamogeton gramineus
)
Horned
Pondweed
(
Zannichellia
)
Horned
Pondweed
(
Zannichellia palustris
)
Lesser
Pondweed
(
Potamogeton pusillus
)
Long-stalked
Pondweed
(
Potamogeton praelongus
)
Perfoliate
Pondweed
(
Potamogeton perfoliatus
)
Red
Pondweed
(
Potamogeton alpinus
)
Sago
Pondweed
(
Potamogeton pectinatus
)
Sheathed
Pondweed
(
Potamogeton vaginatus
)
Shining
Pondweed
(
Potamogeton lucens
)
Slender-leaved
Pondweed
(
Potamogeton filiformis
)
Small
Pondweed
(
Potamogeton berchtoldii
)
Small
Pondweed
(
Potamogeton pusillus
)
Variable
Pondweed
(
Potamogeton gramineus
)
Whitestem
Pondweed
(
Potamogeton praelongus
)
Poor Man's Pepperwort
(
Lepidium virginicum
)
Poor Man's Weatherglass
(
Anagallis arvensis
)
Poor Sedge
(
Carex magellanica
ssp.
irrigua
)
Poorjoe
(
Diodia teres
)
Pop Ash
(
Fraxinus caroliniana
)
Pope's scorpion-weed
(
Phacelia popei
)
Poplar
(
Populus deltoides
)
Poplar
(
Populus grandidentata
)
Poplar
(
Populus tremuloides
)
Poplar Birch
(
Betula populifolia
)
Balsam
Poplar
(
Populus balsamifera
)
Black
Poplar
(
Populus nigra
)
Bolles'
Poplar
(
Populus alba
var.
pyramidalis
)
Carolina
Poplar
(
Populus deltoides
×
nigra
)
Downy
Poplar
(
Populus heterophylla
)
Lombardy
Poplar
(
Populus nigra
var.
italica
)
Neclace
Poplar
(
Populus deltoides
)
Poplars
(
Populus
)
Silver-leaf
Poplar
(
Populus alba
)
Swamp
Poplar
(
Populus heterophylla
)
Tulip
Poplar
(
Liriodendron tulipifera
)
White
Poplar
(
Populus alba
)
Yellow
Poplar
(
Liriodendron tulipifera
)
Popple
(
Populus grandidentata
)
Poppy Family
(
Papaveraceae
)
Poppy Mallow
(
Callirhoe
)
Alaskan
Poppy
(
Papaver nudicaule
)
Californian
Poppy
(
Eschscholzia californica
)
Common
Poppy
(
Papaver rhoeas
)
Corn
Poppy
(
Papaver rhoeas
)
Desert
poppy
(
Kallstroemia grandiflora
)
Gold
Poppy
(
Eschscholzia californica
)
Iceland
Poppy
(
Papaver nudicaule
)
Long-headed
Poppy
(
Papaver dubium
)
Opium
Poppy
(
Papaver somniferum
)
Oriental
Poppy
(
Papaver orientale
)
Pinnate
Poppy
(
Papaver argemone
)
Prickly
Poppy
(
Papaver argemone
)
Rough
Poppy
(
Papaver hybridum
)
Welsh
Poppy
(
Meconopsis cambrica
)
Porcupine Grass
(
Stipa spartea
)
Porter Plum
(
Prunus alleghaniensis
)
Possum Oak
(
Quercus nigra
)
Possum-Haw
(
Ilex decidua
)
Post Oak
(
Quercus stellata
)
Bottom-land
post oak
(
Quercus similis
)
Boynton's sand
post oak
(
Quercus boyntonii
)
Dwarf
Post Oak
(
Quercus stellata
var.
margaretta
)
Sand
Post Oak
(
Quercus stellata
var.
margaretta
)
Sand
post oak
(
Quercus margarettiae
)
Pot Marigold
(
Calendula officinalis
)
Potato
(
Solanum tuberosum
)
Potato Family
(
Solanaceae
)
Sweet
Potato
(
Ipomoea batatas
)
Wild
Potato-Vine
(
Ipomoea pandurata
)
Poverty Birch
(
Betula populifolia
)
Poverty Clover
(
Trifolium depauperatum
)
Poverty Penstemon
(
Penstemon miser
)
Poverty Pine
(
Pinus pungens
)
Povertyweed
(
Monolepis
)
Nuttall
Povertyweed
(
Monolepis nuttaliana
)
Powdery milk-vetch
(
Astragalus cerussatus
)
Powerty Brome
(
Bromus sterilis
)
Poyser's Wood Fern
(
Dryopteris goliana
×
spinulosa
)
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