0
WATER
0  WATER
1
ARCTIC CORDILLERA
1  ARCTIC CORDILLERA
10
NORTH AMERICAN DESERTS
10  NORTH AMERICAN DESERTS
11
MEDITERRANEAN CALIFORNIA
11  MEDITERRANEAN CALIFORNIA
12
SOUTHERN SEMIARID HIGHLANDS
12  SOUTHERN SEMIARID HIGHLANDS
13
TEMPERATE SIERRAS
13  TEMPERATE SIERRAS
14
TROPICAL DRY FORESTS
14  TROPICAL DRY FORESTS
15
TROPICAL WET FORESTS
15  TROPICAL WET FORESTS
2
TUNDRA
2  TUNDRA
3
TAIGA
3  TAIGA
4
HUDSON PLAIN
4  HUDSON PLAIN
5
NORTHERN FORESTS
5  NORTHERN FORESTS
6
NORTHWESTERN FORESTED MOUNTAINS
6  NORTHWESTERN FORESTED MOUNTAINS
7
MARINE WEST COAST FOREST
7  MARINE WEST COAST FOREST
8
EASTERN TEMPERATE FORESTS
8  EASTERN TEMPERATE FORESTS
9
GREAT PLAINS
9  GREAT PLAINS