Plant stem stems are asparagus, bamboo shoots, cactus pads or nopalitos, kohlrabi, and water chestnut. The spice, cinnamon is bark from a tree trunk. Gum arabic is an important food additive obtained from the trunks of "Acacia senegal" trees. Chicle, the main ingredient in chewing gum, is obtained from trunks of the chicle tree. Medicines obtained from stems include quinine from the bark of cinchona trees, camphor distilled from wood of a tree in the same genus that provides cinnamon, and the muscle relaxant curare from the bark of tropical vines. Wood is used in thousands of ways, e.g. buildings, furniture, boats,
Bark painting Bark painting Bark painting is an Australian Aboriginal art form, involving painting on the interior of a strip of tree bark. This is a continuing form of artistic expression in Arnhem Land and other regions in the Top End of Australia including parts of the Kimberley region of Western Australia. Traditionally, bark paintings were produced for instructional and ceremonial purposes and were transient objects. Today, they are keenly sought after by collectors and public arts institutions. The designs seen on authentic bark paintings are traditional designs that are owned by the artist, or his "skin", or his clan, and cannot