| Dendrocalamus dumosus|
The long-sheath bamboo (Dendrocalamus longispathus) is a bamboo species which grows up to 20 m tall. It is native to Bangladesh, Myanmar, and Thailand. It has now become an exotic species all over the South Asia.
Dendrocalamus longispathus Wikipedia
Culms are green with white blooms when young, which become greyish-green when dry. Young shoots are yellowish-green in color with shiny black hairs. Culm is straight. Branches spread out from the midculm to top. Aerial roots reach up to few nodes above the ground. Internode length is 25-50 cm, and diameter is 2.0-10 cm. Culm walls are 0.8-1.5cm thick.
Culm sheaths are green in young plants and turn brown when mature, and are elongated and cylindrical with narrow, lanceolate blades.The sheath proper is 10-20 cm in length and 13-20 cm wide. Blade length is 13-20 cm. Auricles are absent. Upper surfaces of the sheaths are covered with blackish-brown hairs. Lower surfaces of the sheaths are not hairy. Sheaths are persistent (do not fall).