Holly Fern
Polystichum lonchitis
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Mountain Hollyfern
Polystichum scopulinum
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Narrow Leaved Cottonwood
Populus angustifolia
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Fremont Cottonwood
Populus fremontii
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Nimbus Fremont Cottonwood (male)
Populus fremontii 'Nimbus'
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Fremont Cottonwood
Populus fremontii ssp. fremontii
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Quaking Aspen
Populus tremuloides
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Black Cottonwood
Populus trichocarpa
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Slender Poreleaf
Porophyllum gracile
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Floating Leaved Pondweed
Potamogeton natans
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Pacific Potentilla
Potentilla anserina ssp. pacifica
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Varileaf Cinquefoil
Potentilla glaucophylla
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Slender Cinquefoil
Potentilla gracilis
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Padre's Shootingstar
Primula clevelandii
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Padre's Shootingstar
Primula clevelandii var. gracilis
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Shooting Star
Primula clevelandii var. insularis
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Shooting Star
Primula clevelandii var. patula
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Sierra Shooting Star
Primula jeffreyi
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Dark Throated Shooting Star
Primula pauciflora
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Alpine Shootingstar
Primula tetrandra
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Doubleclaw
Proboscidea parviflora
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Common Selfheal
Prunella vulgaris
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Lance Leaf Self Heal
Prunella vulgaris var. lanceolata
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Wild Cherry Hybrid
Prunus 'Intermedia'
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Desert Peach
Prunus andersonii
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Bitter Cherry
Prunus emarginata
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Desert Range Almond
Prunus fasciculata
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Hollyleaf Cherry
Prunus ilicifolia
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Hollyleaf Cherry
Prunus ilicifolia ssp. ilicifolia
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Catalina Cherry
Prunus ilicifolia ssp. lyonii
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Chokecherry
Prunus virginiana
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Western Chokecherry
Prunus virginiana var. demissa
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Bicolored Everlasting
Pseudognaphalium biolettii
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California Cudweed
Pseudognaphalium californicum
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Wright's Cudweed
Pseudognaphalium canescens
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Wright's Cudweed
Pseudognaphalium microcephalum
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Bigcone Douglas Fir
Pseudotsuga macrocarpa
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Douglas Fir
Pseudotsuga menziesii
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Coast Douglas Fir
Pseudotsuga menziesii var. menziesii
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Paperflower
Psilostrophe cooperi
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California Dalea
Psorothamnus arborescens
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Schott Indigobush
Psorothamnus schottii
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Smoke Tree
Psorothamnus spinosus
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Western Hoptree
Ptelea crenulata
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Western Bracken Fern
Pteridium aquilinum
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Hairy Brackenfern
Pteridium aquilinum var. pubescens
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Pine Drops
Pterospora andromedea
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Mexican Cliffrose
Purshia mexicana
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Stansbury's Antelope Brush
Purshia stansburyana
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Antelope Bitterbrush
Purshia tridentata
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Desert Bitterbrush
Purshia tridentata var. glandulosa
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Antelope Bitterbrush
Purshia tridentata var. tridentata
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Mountain Mint
Pycnanthemum californicum
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Alpineflames
Pyrrocoma apargioides
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Coast Live Oak
Quercus agrifolia
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Coast Live Oak
Quercus agrifolia var. agrifolia
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Scrub Oak
Quercus berberidifolia
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Canyon Live Oak
Quercus chrysolepis
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Muller Oak
Quercus cornelius-mulleri
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Blue Oak
Quercus douglasii