Foliage tree with white bark, occurrence in Europe, and the temperate regions of Asia. Up to 30 m tall, fast-growing tree with typically white bark on the trunk, overhanging branches. The white of the birch bark comes from betulin stored in the bark.
Phytotherapeutically, both the birch leaves - Betulae folium, and the birch bark freed from the cork(Betulae cortex).