Ophiopogon japonicus (Linn. F.) Ker-gawl.) Is a perennial evergreen herb of the Liliaceae family, with thick roots, middle or near ends often expanded into small oval or fusiform tubers, very short stems, basal generating plexus, gramineous leaves, bracts lanceolate, apex acuminate, seeds globose, flowering may to August to September.Ophiopogon japonicus is originally produced in China, Japan, Vietnam, India also have distribution.It is cultivated in south China and other places.Born below 2000 meters above sea level in damp places on slopes, under forests or by streams.The root tuber of Ophiopogonis is a traditional Chinese medicine, which has the effect of producing saliva, quenching thirst, moistening lung and relieving cough