1、 Is it because of shyness

Mimosa will close when touched. It's not really shy. It's just an image metaphor. It doesn't close for a long time. After stimulation for about 5-10 minutes, it will gradually return to its original appearance. However, if it is touched continuously, it will no longer have the performance of closing. Because it is always stimulated, the cell fluid in the occipital lobe will be lost, but it cannot be replenished immediately

2、 Reasons for closure

1. There is an organ called "leaf pillow" at the bottom of Mimosa petiole. It contains a lot of parenchyma cells, because the cells are very sensitive. After it is stimulated by the outside world, it will respond, that is, the closure phenomenon we see

2. When the leaves of the plant are touched by something or vibrate slightly, the cell fluid contained in those cells will flow to other places, which can reduce the expansion of the cells, and the cell pressure of the leaf pillow will be reduced, resulting in the phenomenon of closure and tightness