The sunflower is named because the tender flower plate at the top of the young plant in the early stages of growth will rotate with the sun, so it is named. The movement of sunflowers is a typical directional movement. During the rising sun, the emeralds on the east side of Sunflower were exposed to sunlight, resulting in a strong distribution of echins on the west side of the backlight on the west of its backlight. The cells of this side grow quickly on the vertical extension, and as a result, the young stems are bent towards the slow -growing east side, that is, the top of the sunflower (flower plate) bending eastward in the morning. With the movement of the sun in the air, changing the direction of the light, the top of the sunflower (flower plate) continues to change the direction, stand upright at noon, bend to west in the afternoon, and the sunflower is also moving with the sun’s rising west.
Plants are different from animals, without the nervous system, and no muscles. It does not perceive the irritation of the outside world. Mimosa is different from ordinary plants. When it is touched by outside It is “shy”, so it is called Mimosa. This special skill of Mimosa has its certain historical root. Its hometown is often in the tropical South America Brazil, where there are often heavy wind and rain. Whenever the first drop of rain is holding the leaves, it immediately closed the leaves and drooping the petiole to avoid the damage to the storm. This is a adaptation that it adapted to the changes in external environmental conditions. In addition, the mimetic movement can also be regarded as a way of self -defense. When the animals touch it, it will close the leaves, and the animals dare not eat it anymore.
Water lilies, also known as Ziwu Lotus and Cylonia, are perennial aquatic plants belonging to the genus of Water Lily. Water lilies are famous flowers in aquatic flowers. As the sun falls, the flowers of water lilies will gradually be closed, as if the flowers are going to sleep at night, and the water lily is named. Because of the daytime and night rolls of water lilies, it is also known as the “sleeping beauty in flowers.” Some poets once described the water lilies like this: “Don’t misunderstand, we don’t like to sleep, but we are unhappy, and the flowers are closed at night. Once the night is over, we are open to the sun in advance. “
Dance grass, also known as dancing grass, lover grass, automatic automatic grass, passionate grass, romantic grass, puppet grass, etc. It belongs to the perennial wooden plant of the beanic dance grass. There are 3 beautiful leaves on each branches and leaves. When the temperature reaches 25 ° C and the sound of 70 decibels is stimulated, the two leaflets “dance” “dancing grass” by “dancing” in the middle of the large leaves, giving people a sense of freshness and mystery. Dancing grass is produced in some provinces and regions in China. Many botanical gardens are planted with dancing grass today, as moving pets, which have attracted much attention.