United States, Northwestern United States, California
Hybrid origin, North America
Moist Soils, Wet ground, Wet lands
Deciduous forests, Rocky areas, rocky outcrops
3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18
A2, A3, 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