In Canada, someone pouring water into a ball of dried leaves and observes their transformation. In a few hours, The ball opens and gradually leaves get their green again. This plant is part of Selaginella family (Selanginella), from the Chihuahua desert, also known as 'stone flower'. It has the ability to keep alive for several years and can lose up to 95% of water. When conditions are very difficult, plant activates a survival mechanism. gradually dries, while the leaves turn brown and folded. The metabolic functions are reduced to a minimum to enter idle.