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4,849 species in Grand Canyon National Park
Eucrypta chrysanthemifolia
Euphorbia glyptosperma
Euphorbia parryi
Euxoa pleuritica
Festuca arizonica
Festuca idahoensis
Ficus carica
Fimbristylis thermalis
Fishia connecta
Fissidens bryoides
Flammulina velutipes
Foeniculum vulgare
Formica gnava
Formica podzolica
Formica puberula
Formicoxenus hirticornis
Fundulus kansae
Glaucina nota
Gomphidius glutinosus
Gopherus agassizii
Graphocephala subrufa
Grimmia moxleyi
Corallorhiza striata
Grimmia ovalis
Gryllus saxatilis
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