North America, Mexico, Central America, South America
A1, A2, A3, H1, H2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Dry areas, Lowland, Rocky Ridges, Semi arid regions, Semi desert
12, 13, 16, 17, 21, 22, 23, 24