Asiatic Dogwood (Cornus officinalis) is a tree found in both China and Japan. The medicinal part of the Asiatic Dogwood is the fruit. Asiatic Dogwood is high in tannins. In oriental medicine Asiatic Dogwood is used for liver support and support of the reproductive system.
Source: Chineseherbshealing, http://www.chineseherbshealing.com/japanese-cornelian-cherry/