1、 What are there

There are many kinds of clock flowers. For example, morning glory blooms around four o'clock at dawn, peony blooms at seven o'clock when the sun comes out in the morning, Scutellaria barbata blooms at ten o'clock near noon, and marigold blooms at three o'clock in the afternoon. There are also many flowers in the evening. For example, tobacco flowers bloom around seven o'clock in the evening, while Epiphyllum blooms at nine o'clock in the evening

2、 Why is it called clock flower

If the flowers bloom regularly, they are called flowers. If they bloom regularly, they will bloom in that time. The reason why these flowers bloom on time is that they contain a biological clock, which is formed in gradually adapting to changes in the environment and will be passed down from generation to generation

Another view is that its flowering law is closely related to the changes of sunshine, light and temperature in a day. At the same time, it also contains a clock enzyme, which regulates physiological functions and controls the time of flowering. When the temperature rises, the enzyme in the body will rise, which will promote the opening of flowers. When the temperature decreases, the flowers will wither naturally