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4,849 species in Grand Canyon National Park
Timmia megapolitana
Trichaptum abietinum
Lewisia rediviva
Vesper multinervatus
Viola nuttallii
Vitrina pellucida
Wyethia arizonica
Xanthisma grindelioides
Xanthium strumarium
Xanthoparmelia chlorochroa
Xanthoparmelia plittii
Xanthoparmelia subplittii
Zannichellia palustris
Zeltnera arizonica
Trichocnemis spiculatus
Torilis arvensis
Corallorhiza striata
Claytonia lanceolata
Diplachne fusca
Vicia americana
Zelus tetracanthus
Zinnia grandiflora
Hystrichopsylla dippiei
Hoplitis producta
Bryum argenteum
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