The dinosaur plant is a Lycopod and is a type of juniper. The scientific name is Selaginella epidophylla. This desert plant can go without water for long periods of time, curl its leaves to reduce evaporation and "resurrect" itself when water is once again available. Each plant is approximately 6-8 inches in diameter when "alive".
The Dinosaur Plant is also known as the Lazarus Plant, Resurrection plant, Rose of Jericho, and Siempre viva.