Southeastern United States, North-Central United States, Central United States, South-Central United States, Southwestern United States, Texas, Canada, Mexico
Eastern Europe, Southern Europe, Russia/Siberia, Southern Asia, Western Asia
Dry areas, Prairies, Rocky areas, rocky outcrops
Cold Regions
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
7, 8, 9, 15, 16