Eucommia ulmoides gum is a crystalline particle existing in the bark and leaf of Duzhong tree.
杜仲胶是杜仲树树皮和叶片中存在的一种结晶颗粒。
2
Eucommia ulmoides gum(guttapercha or balata) is a crystalline particle existing in the bark and leaf of Duzhong tree (Eucommia ulmoides Oliv), and to extract E.