North America, Europe, Asia
Hybrid origin, Mexico, Central America, South America
Lakes, Ponds, sluggish streams and rivers
Loamy soils, Shaded sites
21,22
A1, A2, A3, H1, H2, 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