Western United States, Northwestern United States, California, Canada
Asia, Europe, Northern Africa
Black Maple, Mountain Maple,
Norway Maple
Sorbus aucuparia fenenkiana, Sorbus aucuparia glabrata, Sorbus aucuparia praemorsa
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17
A1, A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17