Southeastern United States, North-Central United States, Central United States, South-Central United States, Southwestern United States, Texas, Canada, Mexico
Eastern Europe, Northern Europe, Russia/Siberia, Central Asia, Nepal, China
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
A1, A2, A3, 1a, 1b, 2a, 2b