The fairy leaves are ticking. Is that there is water coming out of the tip of the blade. What happened?

This is the phenomenon that the root pressure of plants leads to the tip water. In the case of high humidity and weak transpiration (early morning or night), the water in the xylem of the plant that established root pressure oozed through the drainage hole of the tracheid at the end of the vascular bundle at the leaf edge, indicating that there were water drops at the leaf edge. This phenomenon is called spitting water.