From Kyushu to China, Taiwan and Thailand the Machilus Thunbergii trees grow. Makko really just means "Incense Powder," but when we refer to Makko we are talking about a specific incense powder called Tabu no ki. It is the bark of the Machillus Thunbergii tree. Makko comes in four grades, and the the higher grades have less aroma than the lower ones. What makes this powder so special is its water soluble adhesive properties, an almost odorless characteristic that seems to be entirely lost when mixed with other ingredients, and its abilities to burn smoothly and evenly. It is the binder used in making Japanese incense for centuries and now finds some popularity in incense manufacture in other countries.