Southern Africa, South Africa
Southwestern United States, Mexico
Sandy areas, Semi arid regions, Semi desert
Desert, Dry areas, Semi desert
8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24