Ophiopogon japonicus (scientific name:Ophiopogon japonicus（Linn。f.）Ker Gawl。 Ophiopogon japonicus) perennial evergreen herbs, roots thick, middle or near end often dilated into a small oval or fusiform roots, stems are short, leaf base generated Cong, wo fronds, bracts lanceolate, apex acuminate, seeds globose, flowering fruit period 5-8 months, 8-9 months.
Ophiopogon is native to China, and Japan, Vietnam and India are also distributed. It is cultivated in southern China and other places. In wet places, elevations of 2000 meters below the forest or the brook.
The small root of Ophiopogon japonicus is traditional Chinese medicine, which has the effect of relieving thirst of thirst and relieving cough of lung.