The Rose of Jericho (Selaginella lepidophylla) is a species of desert moss that has the amazing ability to ‘resurrect’ itself after bouts of extreme dehydration lasting months or even years. After just a few hours of exposure to moisture the plants burst to life, uncurling from a tight ball of dry leaves to a green flower-like shape. Videographer Sean Steininger shot this timelapse of several plants as he exposed them to water. (via Cause, Science!)
Update: Apparently a few places sell these plants online.