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5,782 species in Rocky Mountain National Park
Andrena nivalis
Anthidium atrifrons
Anticlea virescens
Anyphaena pacifica
Apamea alia
Apatania zonella
Aphis fraserae
Aphis helianthi
Aphyllon franciscanum
Aphyllon uniflorum
Araneus gemmoides
Archiearis infans
Archirhoe neomexicana
Argyrochosma fendleri
Artemisia carruthii
Arthonia glebosa
Astragalus eucosmus
Astragalus lentiginosus
Astragalus shortianus
Aulacomnium androgynum
Barbarea orthoceras
Barbilophozia barbata
Bassia scoparia
Batyle ignicollis
Blastenia ammiospila
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