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4,849 species in Grand Canyon National Park
Prenolepis imparis
Primula tetrandra
Protandrena albitarsis
Psathyrostachys juncea
Pseudopamera nitidula
Psora luridella
Psoroma hypnorum
Psorula rufonigra
Grindelia nuda
Puccinia oenotherae
Puccinia pygmaea
Puma concolor
Pyrocephalus rubinus
Quercus arizonica
Rabdophaga strobiloides
Rhinotropis subspinosa
Rhizophlyctis rosea
Richardsonius balteatus
Rinodina bischoffii
Rorippa teres
Saitozyma podzolica
Sapindus saponaria
Sarcogyne novomexicana
Sassacus paiutus
Sceloporus uniformis
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