Subdivisions North American Atlantic Region

1 subdivisions

1.1 appalachian province
1.2 atlantic , gulf coastal plain province
1.3 north american prairies province

subdivisions

franklinia alatamaha, endemic species of georgia, extinct in wild

the north american atlantic region subdivided further 3 floristic provinces: appalachian province, atlantic , gulf coastal plain province, , north american prairies province.

appalachian province

the appalachian province comprises upland eastern north america covered deciduous forest in historic times, concentrated around appalachians , ozarks, flora found refuge during pleistocene glaciations. stretches southernmost ontario , quebec arkansas , easternmost texas , central georgia , alabama eastern iowa , southeastern minnesota. remaining wildland of province covered predominantly temperate broadleaf , mixed forests dominated oaks, hickories, maples , tsuga , characterized highest degree of endemism within floristic region. includes such ecoregions appalachian mixed mesophytic forests, appalachian-blue ridge forests, central u.s. hardwood forests, ozark mountain forests, , piedmont (as far east fall line).

atlantic , gulf coastal plain province

the atlantic , gulf coastal plain province strip of coastal plain, narrow on north, lying east , south of appalachian province , stretching southernmost nova scotia through georgia , florida eastern texas, extending mississippi embayment southern tip of illinois. due pleistocene inundations, of flora younger of appalachian province, degree of endemism still high. remaining wildland of province occupied temperate coniferous forests temperate mixed forests dominated pines (including such ecoregions northeastern coastal forests, new england-acadian forests, atlantic coastal pine barrens). province can subdivided smaller areas, notably gulf coastal plain , atlantic coastal plain.

north american prairies province

the north american prairies province large grassland floristic province lying between appalachian province , rocky mountains , including prairies of great plains. bounded canadian coniferous forests on north , arid semideserts southwest. province occupied temperate grasslands, savannas, , shrublands (including such ecoregions flint hills tall grasslands, sand hills, high plains). endemism rather limited in province, , boundaries vague. during pleistocene of province glaciated.