Asia, Europe, North Africa, North America
Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
Shaded sites, Waste areas
bottomlands, Depression on prairies, ditches, Floodplains, Riverbanks, stream banks, Swamps
21,22
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