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Taxon:Aristida havardii Vasey Family: Poaceae
Krohn, Liburn, Morrison
USA, Arizona, Cochise County, Hill Fourr 11th Brigade Signal Corps site, 4.5 km NW of the confluence of the San Pedro River and Graveyard Gulch, 7 km SW of Fairbanks. Topography 0-25 slope, S- facing.