154 Bur oak savanna Oak woodlands or savannas bordering and occurring within prairie-dominated regions. These savannas are generally dominated by bur oak. This savanna type is maintained by fire and is found from South Dakota west into Wyoming, south into Oklahoma, and east into Missouri and Iowa. The structure of this fuelbed is fairly homogeneous, although canopy species, shrubs and herbaceous vegetation vary throughout this region. Fire exclusion has allowed encroachment of other oaks and mixed deciduous species. 210,220,250,310,330 5 1 48,143,278 2 1 2

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