Southeastern United States, North-Central United States, Central United States, South-Central United States, Southwestern United States, Texas, Canada, Mexico
Dry areas, Prairies, Rocky areas, rocky outcrops
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
Eastern Europe, Southern Europe, Russia/Siberia, Southern Asia, Western Asia
6, 7, 8, 9, 10, 14, 15, 16