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