Alocasia macrorhizos - Upright Elephant Ears - Araceae (The Arum Family)
This giant elephant ear is quite different from the typical Colocasia. esculenta. The leaves are thick, sculpted and glossy green and are held upright on dramatically rigid stems. A large specimen is guaranteed to stop visitors to your garden in their tracks! Reportedly hardy in zone 8 if the tuber is protected. Makes an excellent and dramatic houseplant if you don't want to risk it.