Japan
Northeastern United States, Mid-Atlantic United States, Southeastern United States, Canada
Lawn, shaded fields, Shaded sites
Deep, Fertile bottom land, Hilly upland habitat, Well Drained
3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 18, 19, 20, 21