Interesting discovery

On the day of the holiday, I went alone to the grass on the square to play.

At this time, I accidentally bumped into a grass, and the leaves of this grass began to slowly close. I feel very strange, the problem is like a water: What is this grass? Why is it to close the blade? I will continue to observe with questions. After a few minutes, I found that the leaves of this grass slowly spread out. I think: It must be something wrong with this grass. Unexpectedly, what surprised me happened again. A small flying insect listened to the grass for a while, and the leaves immediately closed, scaring the little flying insects away. After a while, the leaves stretched out again. I think: I must know the little secret of this grass. So, I rushed home and read the information to know: This kind of grass is called mimosa. As long as it touches, the cells in the leaf pillow of the base of the petiole will change the water content, which will cause the leaves to close. Through this understanding of mimosa, I feel that I need to know more about plants in the future.

Second grade: Xiaojie