Bletilla striata (Thund.) Reichb.f is a genus of herbaceous perennial flowers. Bletilla not only has high ornamental value, but also is one of our traditional Chinese medicines, its bitter, sweet, astringent, cool, lung, stomach, liver. Functional convergence bleeding, swelling and tissue regeneration, treating pulmonary bleeding, traumatic bleeding, carbuncle swollen sore, chapped skin, burned. With the increasing demand of Bletilla, resulting in wild Bletilla and excessive excavation; as the same time,the...