''Dendrocalamus sinicus'', the dragon bamboo, is a gigantic clumping

bamboo Bamboos are a diverse group of mostly evergreen perennial plant, perennial flowering plants making up the subfamily (biology), subfamily Bambusoideae of the grass family Poaceae. Giant bamboos are the largest members of the grass family, in th ...

native to

Yunnan Yunnan; is an inland Provinces of China, province in Southwestern China. The province spans approximately and has a population of 47.2 million (as of 2020). The capital of the province is Kunming. The province borders the Chinese provinces ...

Province of

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

and to

Laos Laos, officially the Lao People's Democratic Republic (LPDR), is the only landlocked country in Southeast Asia. It is bordered by Myanmar and China to the northwest, Vietnam to the east, Cambodia to the southeast, and Thailand to the west and ...

. It has the largest culms of any known species of bamboo; up to wide with culm walls up to thick and the culm up to height. Each culm can weigh up to apiece. A plant eventually consists of about one hundred culms. This species was unknown to mainstream science prior to 1980, although well known to the citizens of Yunnan and Laos for centuries.

References

sinicus Plants described in 1982 bamboo Flora of China Flora of Laos {{bamboo-stub