The blue spruce (Picea pungens f. glauca) belongs to Pinaceae (the Pine tree). It is a form of "Colorado blue spruce" (Picea pungens). The host species is native to Colorado in the northern United States, and it can reach 30-50 m in height. The crown is cornical and the branches spread out almost on the level or ascending. This species has needle-like, bluish silver-white leaves. The photos are a cultivar 'Globosa' that is dwarf, slow-growing, and used as a garden or park tree.