I bought a potted plant online, and the store said it was called Sunny Grass. What is its scientific name?

Sunny grass is the well-known mimosa.

Chinese name: Mimosa

Latin name: Bashfulgrass

Alternate names: Sensory grass, Mimosa, call grass, ugly grass

Binary name: Mimosa?pudica

Mimosa is a wonderful plant that can herald changes in weather. If you touch it with your hands, its leaves will close quickly and open very slowly, which means the weather will get better; if you touch the Mimosa leaves, its leaves will shrink slowly, droop slowly, and even close and reopen after a moment. This means that the weather will turn from sunny to cloudy or it will rain soon.

The opening and closing speed of Mimosa leaves can predict whether the weather will be cloudy or sunny. This is mainly because there is a small drum-shaped parenchyma cell tissue at the neck of Mimosa leaves - leaf mattress, which is filled with Water, when you touch a Mimosa leaf with your hand, as soon as the leaf vibrates, the water in the cells in the lower part of the leaf mattress immediately flows upward to both sides, so that the lower part of the leaf mattress deflates, while the upper part bulges, and the petiole droops. , leaves closed. Therefore, the closing and opening of leaves are caused by the turgor pressure of the leaf mattress. The turgor pressure of leaf mattresses is closely related to the humidity in the air. When the air humidity is very low, the turgor pressure of leaf mattresses is obvious, and the leaves close and open quickly; when the air humidity is high, the leaves open and close quickly. Slow. Therefore, the speed of opening and closing of Mimosa leaves indirectly reflects the humidity in the air and can be used as a reference for weather forecast.