blue spruceblue spruce
- any of several varieties of a North American spruce (Picea pungens) having sharply pointed, bluish-green needles: often grown as an ornamental
- the wood of such a tree
A spruce (Picea pungens) of the Rocky Mountains, having silvery-blue or blue-green four-angled needles and cylindrical cones. It is cultivated as an ornamental. Also called Colorado blue spruce .