Southwestern United States, Mexico
Southeastern United States, Central United States, South-Central United States, Mexico
Desert, Dry areas, Rocky areas, Sandy areas
Loamy soils, Moist woods, Tropical regions
9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23
2b, 3a, 3b, 6, 7, 8, 9, 10, 12, 13, 14, 18, 19, 20