Black Spruce, Norway Spruce, Colorodo Spruce
Eastern white spruce
Black Hills white spruce
Alberta white spruce
Alaska white spruce
By seashore, Humid climates, Temperate Regions
Cold Regions, Rocky areas
A3, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17