Silver Spruce
Prickly spruce, silver spruce (Picea pungens Engelm. 1879) - a species of evergreen tree of the pine family (Pinaceae). Spruce stinging from the Rocky Mountains in western North America.
Ornamental plant - tree valued in horticulture, especially for high resistance to environmental pollution. Brought the first time to Europe in the late nineteenth century. Bred varieties planted in parks, gardens and dwarf forms suitable for growing in pots.