1、 Why is it called Mimosa

Mimosa gets its name mainly because its leaves are special. As long as it is touched or raindrops fall on the leaves, it will shrink its leaves immediately, and then the plant will droop slightly. Like a shy little girl, when someone makes a joke, she immediately covers her face and blushes shyly, so she is named Mimosa.

2、 Why do the leaves close as soon as they touch

It is not only that Mimosa is really "shy" to gather its leaves, but also that there is a special organ "leaf pillow" at the base of its petiole. It has many parenchyma cells, which are very sensitive to external stimuli. Once the leaf is touched, it will be immediately transmitted back to the leaf pillow. At this time, the cell fluid of parenchyma cells in the leaf pillow will begin to flow to the cell gap, reducing the expansion capacity of cells and reducing the pressure between cells in the lower part of the leaf pillow, resulting in the phenomenon of leaf closure and plant drooping. After a few minutes, the leaves will slowly open again. Therefore, it is a physiological phenomenon that Mimosa closes when it touches the leaves.

3、 Precautions

Don't touch the leaves of Mimosa often. Frequent touching can lead to their stunting and even early wilting. Moreover, Mimosa has some slight toxicity. If it is often touched, it will affect human hair follicles and cause hair loss.