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4,118 species in Yellowstone National Park
Carum carvi
Castilleja lutescens
Castilleja nivea
Castilleja occidentalis
Castilleja puberula
Catabrosa aquatica
Ranunculus flammula
Catapyrenium psoromoides
Grimmia apocarpa
Ranunculus orthorhynchus
Catocala briseis
Cenocorixa wileyae
Centronyx bairdii
Cetraria islandica
Chaoborus americanus
Chara globularis
Chara zeylanica
Chimarra utahensis
Chlorochroa congrua
Chroococcus varius
Chroogomphus vinicolor
Chrysothrix chlorina
Cicuta douglasii
Cinna latifolia
Circinaria contorta
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