Northern Forests are a type of biome that is characterized by coniferous trees such as pines, spruces, and firs. The term 'Taiga' is used to describe the largest biome in the world, which is located in the Northern Hemisphere and is composed of these coniferous forests. Taiga is a Russian word meaning 'forest of the north'. It is the largest land biome in the world, covering much of Alaska, Canada, Scandinavia, and Russia.