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2,312 species in Great Basin National Park
Sarcogyne similis
Sarcosphaera coronaria
Sassacus papenhoei
Callophrys affinis
Saxifraga rivularis
Scoliopteryx libatrix
Sergiolus montanus
Serradigitus wupatkiensis
Setophaga pensylvanica
Silene drummondii
Silene menziesii
Silene scouleri
Sisyrinchium halophilum
Smelowskia calycina
Solanum rostratum
Solanum triflorum
Somatolophia ectrapelaria
Sporastatia testudinea
Steatoda albomaculata
Steatoda hespera
Strymon melinus
Sympistis arizonensis
Epilobium glaberrimum
Synchlora aerata
Syntrichia norvegica
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