Why does dancing grass dance?

How does the dancing grass dance?

There are a large number of linear leaflets growing on both sides of the leaves of the dancing grass, which are very sensitive to sound waves. When the temperature is not lower than 22℃ and there is sufficient light, the dancing grass stimulated by the sound waves will swing up and down continuously, like a butterfly flapping its wings and dancing in the air.

The reason why dancing grass dances

The dancing of dancing grass is related to temperature, sunlight and sound waves.

The leaflets on both sides of the dancing grass dance because the spongy tissue at the base of the petiole reacts sensitively to light. In an environment of normal temperature, strong light, and no wind or rain, the linear leaflets on both sides of the dancing grass blades will swing continuously. Each leaflet can complete an elliptical movement once within half a minute, rotate 180 degrees, return to its original position, and continue to rotate.

When the sun shines, the temperature begins to rise, the water in the plant body evaporates faster, the spongy body swells, and the leaflets begin to swing from side to side. The stronger the light, the faster the movement, until all the leaves droop and close at night to sleep. When the sun sets and the light dims, the leaves droop, close tightly and stick to the branches.

When it is subjected to singing vibrations of 35-40 decibels, the corpus spongiosum will also contract, driving the leaves to swing.