Mountainous version of the snowless Taiga biome.
Taiga M. Temperature: 0.25 Featuring Spruce Trees, Flowers, Ferns, Sheep - gamepedia.com 
The main tree species, the length of the growing season and summer temperatures vary depending on the elevation, and consequently the average temperature. Minecraft reflects this by giving each Biome it's own temperature property that in turn affects the climate.
This mechanism can be used to code a Minecraft Climate Change Simulaton.
At high elevations Taiga grades into alpine tundra, it is not an alpine biome only like subalpine forest, and much of taiga is lowlands.
- The Taiga of North America mostly consists of spruces.
- Scandinavian and Finnish taiga consists of a mix of spruce, pines and birch.
- Russian taiga has spruces, pines and larches depending on the region.
- Eastern Siberian taiga is a vast larch forest.
Boreal forest near Shovel Point in Tettegouche State Park, along the northern shore of Lake Superior in Minnesota - wikipedia
A different use of the term taiga is often encountered in the English language, with "boreal forest" used in the United States and Canada to refer to only the more southerly part of the biome, while taiga is used to describe the more barren areas of the northernmost part of the biome approaching the tree line and the tundra biome.