Africa, America, Asia
North America, United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, South-Central United States, Texas, Canada
Along Railroads, River side, Roadsides
Mixed deciduous forest, shaded fields, shaded moist road banks, shaded riverbanks
H1, 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
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7