Chrysanthemum is a perennial herb, and its flowers are often used to make tea, prepare drinks, or brew chrysanthemum nectar and other foods. Common chrysanthemum varieties include the following:

1. Yellow chrysanthemum: yellow in color, with larger flowers and rich fragrance.

2. White chrysanthemum: white in color, slightly smaller flowers, and light in fragrance.

3. Snow chrysanthemum: white in color, slightly larger flowers, thicker leaves, and fragrant aroma.

4. Purple chrysanthemum: Purple color, small petals and strong fragrance.

The main functions of chrysanthemum are as follows:

1. Clearing away heat and detoxifying: Chrysanthemum has the effect of clearing away heat and detoxifying, which can effectively reduce body heat and help treat symptoms such as colds and fevers.

2. Improve eyesight and promote fluid production: Chrysanthemum has the effect of improving eyesight and promoting fluid production. It can reduce eye fatigue and dryness, regulate body water balance, and prevent problems such as dry mouth and bad breath.

3. Beauty and beauty: Chrysanthemum has a beauty and beauty effect. It can promote blood circulation, moisturize the skin, and maintain the elasticity and luster of the skin.

4. Antioxidant: Chrysanthemum is rich in flavonoids, which have antioxidant effects and can effectively prevent and alleviate diseases caused by free radical damage in the body.