"The Fishtail Palm Tree originated in Indonesia where it grow vigorously in tropical rain forests. The Fishtail Palm Tree leaves grow into a form with a shape of a fish tail, and the rough edges can enhance the look of your landscape, and brighten up your yard, and can be used next to pools, to accent and give a lush, tropical look. Each leaf on the Fishtail Palm Tree is different and unique. The leaves appear to be jagged as if the ends of every leaf were torn off in a non-uniform manner. "
http://www.tytyga.com/Fishtail-Palm-p/fishtail-palm-tree.htm
References
http://www.tytyga.com/Fishtail-Palm-p/fishtail-palm-tree.htm
http://www.pacsoa.org.au/palms/Caryota/mitis.html
http://en.wikipedia.org/wiki/Caryota