Langsdorffia hypogaea
Langsdorffia hypogaea is a parasitic plant in the family Balanophoraceae which parasitizes Quercus spp. among others. It is native from southern Mexico through Central America to northern South America. It forms a pseudotuber composed of tissue of the host integrated with its own tissue that can be up to in size. The Langsdorffia flower clusters emerge from the soil out of these "tubers".