Wild chrysanthemum flower buds from Yunnan province, flavor is extremely intense with bitterness. Use a small amount.
Medicinal use quoting from wikipeia:
Chrysanthemum tea has many purported medicinal uses, including an aid in recovery from influenza, acne and as a "cooling" herb. According to traditional Chinese medicine the tea can aid in the prevention of sore throat and promote the reduction of fever. In Korea, it is known well for its medicinal use for making people more alert and is often used as a pick-me-up to render the drinker more awake. In western herbal medicine, Chrysanthemum tea is drunk or used as a compress to treat circulatory disorders such as varicose veins and atherosclerosis.
In traditional Chinese medicine, chrysanthemum tea is also said to clear the liver and the eyes. It is believed to be effective in treating eye pain associated with stress or yin/fluid deficiency. It is also used to treat blurring, spots in front of the eyes, diminished vision, and dizziness.[2] The liver is associated with the element Wood which rules the eyes and is associated with anger, stress, and related emotions.