Lindera aggregata is a plant species belonging to the Lindera genus. Lindera aggregata radix lindera, It is an ingredient in the traditional Chinese medicine pill Chaihu Shugan Wan against "stagnation of liver qi, distension of chest and hypochondria, indigestion, and acid eructation", and in the Lindera Combination Teapills, a Chinese classic herbal formula. An A type proanthocyanidin trimer (epicatechin-(4β→8,2β→O→7)-entcatechin-(4β-8)-catechin) can be found in Lindera aggregata. This compound shows cytoprotective action against ethanol-induced gastric injury. Four alkaloids (boldine, norboldine, reticuline and linderegatine) can also be found in L. aggregata. Lindera aggregata, Evergreen shrubs or small trees, up to 5 m tall, ca. 4 cm d.b.h.; roots fusiform-inflated or nodose-inflated, 3.5-8 × 0.7-2.5 cm, brown-yellow or brown-black and rugose on surface, aromatic. Sunny mountain slopes, valleys, sparse forests and thickets; 200-1000 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Jiangxi, Taiwan, Zhejiang [Philippines, Vietnam].