Persicaria tinctoria (Ait.) H.Gross

An annual herb. It grows 75 cm tall.

It is a tropical plant but can grow in temperate places. It is sensitive to frost. It grows in moist valleys and along stream banks. In China it grows between 200-1,000 m above sea level. It is best in full sun, a fertile soil and a humid climate.

The young leaves are cooked and eaten. The seeds are eaten raw or cooked.

Plants are easily grown from seeds. Plants the seeds where the plants are to grow.