GIGANTOCHLOA atroviolacea: 12m x 8cm, -2°C JAVA BLACK BAMBOO - °C JAVA BLACK BAMBOO - °C JAVA BLACK BAMBOO - Cultivated only in Central & West Java where it is known as WULUNG. It is valued for its black culms which are used to make furniture and musical instruments. The shoots are also edible turning a yellow-pink after cooking.