The Chaga Mushroom grows uniquely on the birch tree and is almost as hard as wood. It is unique in that chaga is the most nutritionally dense of all tree growths. Known by the Siberians as the "Gift from God" and the "Mushroom of Immortality", this vibrant growth has been used by humans to support health for thousands of years. The Japanese call it "The Diamond of the Forest", while the Chinese deem it "King of Plants". For the Chinese that is saying a lot, since they have an immense history with countless plants.