The art of Bonsai shaping and tree training is one of the oldest, most intricate arts in the gardening and botanical industry. The word bonsai is derived from the Japanese words bon, meaning tray, and sai, meaning tree, with a literal meaning of planting miniature trees inside a tray. Although originally started in Japan, there are similar traditions that are practiced in other cultures, such as the art of Penjing in China and hon-non-bo in Vietnam. These living, miniature natural masterpieces increase greatly in aesthetic appeal and financial value as the tree matures over time. There are a variety of different styles of bonsai trees, as well as many different species of tree that can be used to create a Bonsai. Styles of Bonsai include informal upright, formal upright, cascade, literati, semi-cascade and raft bonsais, all of which can range greatly in size from miniature, small, medium and large. Both flowered and fruit trees can be used.