"Forest Diamond"The Swedish name for Chaga (Inonotus obliquus) is sprängticka (blast fungus). The chaga mushroom is a fungus found throughout the northern coniferous forest belt, i.e. in Northern Europe, the Nordic region, Northern USA, Canada and Russia. It grows on birch tree trunks and is easy to recognize from its black rough surface , which looks burnt or sooty.The name Chaga comes from Russian: чага (tja:ga)), but this is as a product name for use in health foods. As a health food chaga is used to make tea, coffee and as a chilled base in smoothies.