Dendrocalamus giganteus, also known as dragon bamboo or one of several species called giant bamboo, is a giant tropical and subtropical, dense-clumping species native to Southeast Asia. It is one of the largest bamboo species in the world. Culms are straight and grayish green with a powdery appearance, becoming brownish green on drying, with a smooth surface. Young shoots are blackish purple. Internode length is 25-40 cm, and diameter is 10-35 cm. Culm walls are thin, branching only at the top. Aerial roots occur up to the eighth node. The rootstock is stout.