''Dendrocalamus longispathus'', the long-sheath bamboo, is a

bamboo Bamboos are a diverse group of evergreen perennial flowering plants making up the subfamily Bambusoideae of the grass family Poaceae. Giant bamboos are the largest members of the grass family. The origin of the word "bamboo" is uncertain, bu ...

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

which grows up to 20 m tall. It is native to

Bangladesh Bangladesh (}, ), officially the People's Republic of Bangladesh, is a country in South Asia. It is the eighth-most populous country in the world, with a population exceeding 165 million people in an area of . Bangladesh is among the mos ...

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...

, and

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is bo ...

. It has now become an exotic species all over the

South Asia South Asia is the southern subregion of Asia, which is defined in both geographical and ethno-cultural terms. The region consists of the countries of Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, and Sri Lanka.;;;;;;;; ...

Appearance

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 0.8–1.5 cm 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).

References

Thailand bamboosTropical plantsThe Plant List
longispathus {{bamboo-stub