Selaginella lepidophylla, also known as a Resurrection Plant, is a species of desert plant in the spikemoss family. Resurrection Plants are renowned for their ability to survive almost complete desiccation. During dry weather in its native habitat, its stems curl into a tight ball, uncurling only when exposed to moisture.
For care, simply place it in a bowl of water and it will unfurl fully within 24 hours. You can leave it there or plant it in a pot. If you wish to dry it up again, you can repeat the same process again!