Resurrection furn (Polypodium polypodioides) grows in the south mostly on live oak, cypress and other large trees. It is an epiphyte which extracts its nourishment from rainwater, dust and other matter which accumulates on the bark of trees, causing no damage to the host tree. What is particular about this plant is its ability to sustain long periods of draught while drying out and assuming a dried grey appearance. A single night of rain will transform it into the lush green foliage of this photo. For more information google " floridata resurrection furn ". A perfect plant for a church grave yard...