A spruce is a tree of the genus Picea /paɪˈsiːə/,[1] a genus of about 35 species of coniferous evergreen trees in the Family Pinaceae, found in the northerntemperate and boreal (taiga) regions of the earth. Spruces are large trees, from about 20–60 metres (about 60–200 feet) tall when mature, and can be distinguished by their whorled branches and conical form. The needles, or leaves, of spruce trees are attached singly to the branches in a spiral fashion, each needle on a small peg-like structure

Source: Wikipedia