Hybrid origin, Southern Europe
United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
Banks, Dry areas, Gravels, meadows, Pastures, Riverbanks
Loamy soils, meadows, moist forests
7, 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 18, 19, 20, 21, 22, 23