Spruce trees are evergreen conifers belonging to the genus Picea. They are characterized by their needle-like leaves, which are typically sharp and stiff, and their cones, which hang down from the branches. Spruce trees can grow to be quite tall, often reaching heights of 50 to 200 feet, depending on the species. They thrive in cooler climates and are commonly found in the northern hemisphere, particularly in North America and Europe. These trees are important for their ecological and economic value. They provide habitat for various wildlife species and are often used in the timber industry for construction and paper products. Additionally, spruce wood is popular for making musical instruments, such as guitars and pianos, due to its excellent acoustic properties.