United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
Eastern Asia, China, Japan
Loamy soils, meadows, moist forests
shaded moist road banks, Wet Woods
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 18, 19, 20, 21, 22, 23
2b, 3a, 3b, 4, 5, 6, 14, 15, 16, 18, 19, 20