Fructus Aurantii Immaturus. Part used: Fruit. Known as Immature Bitter Orange. Entering meridians: Large Intestine, Spleen and Stomach. Zhi Shi breaks up stagnant Qi, reduces accumulation, descends Qi, unblocks the bowels, removes stagnant food, transforms phlegm, reduces distention and resolves hardenings. All Phoenix Medical dry authentic herbs and concentrated herbal granules are free of sulphur, herbicides and pesticides.