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3,295 species in Denali National Park
Porpidia grisea
Potamogeton obtusifolius
Potamogeton robbinsii
Xanthoparmelia taractica
Potentilla nana
Potentilla villosa
Primula nivalis
Primula pumila
Profenusa thomsoni
Protoparmelia atriseda
Prunus padus
Psathyrella gracilis
Psettichthys melanostictus
Pseudobryum cinclidioides
Pseudoleskea stenophylla
Pseudoleskeella sibirica
Pseudosciaphila duplex
Psylla betulaenanae
Pterostichus crenicollis
Pterygoneurum lamellatum
Ptychoramphus aleuticus
Ptychostomum arcticum
Ptychostomum cyclophyllum
Puccinia coronata
Puccinia heucherae
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