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4,849 species in Grand Canyon National Park
Schinia sexplagiata
Erynnis brizo
Sclerocactus parviflorus
Scopoides nesiotes
Scutigera coleoptrata
Secale cereale
Seiurus aurocapilla
Senecio wootonii
Serica alternata
Setagrotis vocalis
Setaria grisebachii
Setaria pumila
Setidiscus hornii
Setophaga americana
Setophaga virens
Sidalcea neomexicana
Bolbitius reticulatus
Sminthurinus quadrimaculatus
Snowia montanaria
Solanum nitidibaccatum
Solicoccozyma terricola
Sonorella dalli
Sorbus scopulina
Carduus nutans
Sparganothis vocaridorsana
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