Somewhere on the dripping slopes of Mount Samkos, in Cambodia's Cardamom Mountains, a flower pushes up through the leaf litter with no stem to announce it. It has no leaves, no visible roots, no chlorophyll. It lives for only a few days, grows nowhere else on Earth, and for more than sixty years the scientific world believed it had vanished. This is the story of Sapria poilanei, one of Cambodia's rarest and least-known plants.