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4,849 species in Grand Canyon National Park
Rhizocarpon geographicum
Salix amygdaloides
Sicya morsicaria
Sonorella reederi
Sphinx chersis
Stamnodes tessellata
Staurothele effigurata
Suillus occidentalis
Synuchus dubius
Tidestromia lanuginosa
Usnea subfloridana
Vallonia perspectiva
Xanthomendoza trachyphylla
Xanthoparmelia cumberlandia
Xyloryctes jamaicensis
Agathymus alliae
Agoseris parviflora
Lampropeltis getula
Linaria dalmatica
Oxytropis lambertii
Astragalus tephrodes
Castor canadensis
Cercyonis sthenele
Chylismia walkeri
Claytonia parviflora
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