35
South Central Plains
8.3.7
8.3
SOUTHEASTERN USA PLAINS
8
EASTERN TEMPERATE FORESTS
Arkansas
35  South Central Plains
8.3  SOUTHEASTERN USA PLAINS
8  EASTERN TEMPERATE FORESTS
36
Ouachita Mountains
8.4.8
8.4
OZARK/OUACHITA-APPALACHIAN FORESTS
36  Ouachita Mountains
8.4  OZARK/OUACHITA-APPALACHIAN FORESTS
37
Arkansas Valley
8.4.7
37  Arkansas Valley
38
Boston Mountains
8.4.6
38  Boston Mountains
39
Ozark Highlands
8.4.5
39  Ozark Highlands
73
Mississippi Alluvial Plain
8.5.2
8.5
MISSISSIPPI ALLUVIAL AND SOUTHEAST USA COASTAL PLAINS
73  Mississippi Alluvial Plain
8.5  MISSISSIPPI ALLUVIAL AND SOUTHEAST USA COASTAL PLAINS
74
Mississippi Valley Loess Plains
8.3.6
74  Mississippi Valley Loess Plains