Blue Fiestaflower
Pholistoma auritum
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Fiesta Flower
Pholistoma auritum var. auritum
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Common Reed
Phragmites australis
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Common Lippia
Phyla nodiflora
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Chambers' Twinpod
Physaria chambersii
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Weeping Spruce
Picea breweriana
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Engelmann Spruce
Picea engelmannii
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Sitka Spruce
Picea sitchensis
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Chaparral Pea
Pickeringia montana
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Montana Chaparral Pea
Pickeringia montana var. montana
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Dwarf Pine
Pinus albicaulis
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Knobcone Pine
Pinus attenuata
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Foxtail Pine
Pinus balfouriana
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Foxtail Pine
Pinus balfouriana ssp. austrina
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Lodgepole Pine
Pinus contorta
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Shore Pine
Pinus contorta ssp. contorta
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Tamarack Pine
Pinus contorta ssp. murrayana
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Coulter Pine
Pinus coulteri
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Twoneedle Pinyon
Pinus edulis
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Limber Pine
Pinus flexilis
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Jeffrey Pine
Pinus jeffreyi
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Sugar Pine
Pinus lambertiana
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Hickory Pine
Pinus longaeva
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Oneneedle Pinyon Pine
Pinus monophylla
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Western White Pine
Pinus monticola
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Bishop Pine
Pinus muricata
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Parry Pinyon Pine
Pinus quadrifolia
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Monterey Pine
Pinus radiata
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Foothill Pine
Pinus sabiniana
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Torrey Pine
Pinus torreyana
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Elegant Piperia
Piperia elegans
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Michael's Piperia
Piperia michaelii
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Coast Plantain
Plantago elongata
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Dotseed Plantain
Plantago erecta
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Goose Tongue
Plantago maritima
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Woolly Plantain
Plantago ovata
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Woolly Plantain
Plantago patagonica
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Naked Plantain
Plantago subnuda
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Western Sycamore
Platanus racemosa
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Arizona Sycamore
Platanus wrightii
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Creamcups
Platystemon californicus
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Marsh Fleabane
Pluchea odorata
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Arrow Weed
Pluchea sericea
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Cusick's Bluegrass
Poa cusickii
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Timber Blue Grass
Poa rhizomata
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Sierra Blue Grass
Poa sierrae
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Catalina Grass
Poa thomasii
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Wheeler's Bluegrass
Poa wheeleri
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Douglas' Pogogyne
Pogogyne douglasii
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Redwhisker Clammyweed
Polanisia dodecandra
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California Sky Pilot
Polemonium californicum
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Showy Sky Pilot
Polemonium eximium
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Beach Knotweed
Polygonum paronychia
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Nested Polypody
Polypodium calirhiza
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California Sword Fern
Polystichum californicum
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Dudley's Sword Fern
Polystichum dudleyi
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Polystichum imbricans ssp. curtum
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Polystichum imbricans ssp. imbricans
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Kruckeberg's Sword Fern
Polystichum kruckebergii
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Lemmon's Holly Fern
Polystichum lemmonii