Chrysanthemum tea

Chrysanthemum tea is a flower-based infusion beverage made from the chrysanthemum flowers of the species Chrysanthemum morifolium or Chrysanthemum indicum, which are most popular throughout East and Southeast Asia. First cultivated in China as a herb as early as the 1500 BCE, Chrysanthemum became popularized as a tea during the Song Dynasty. In Chinese tradition, once a pot of chrysanthemum tea has been drunk, hot water is typically added again to the flowers in the pot ; this process is often repeated several times.

Source: Wikipedia