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 5-10 minutes of stimulation, it will gradually change back to its original appearance. However, if it is touched continuously, it will no longer have the performance of closure. Because it is always stimulated, the cell fluid in the leaf pillow will be lost, but it can not be immediately added
1. The bottom of the petiole of Mimosa has an organ called "leaf pillow". It contains a lot of thin-walled cells, because the cells contained are very sensitive. After it is stimulated by the outside world, there will be a response, that is, we see the phenomenon of closure.
2. When the leaves of the plant are touched by something, or slightly vibrated, 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 become smaller, so that the phenomenon of closing and closing will appear.