Biggest and tallest bamboo in the world: this gigantic clumping bamboo has the largest culms of any known species of bamboo; up to 15.9 inches (40 cm) wide with culm walls up to 2.3 inches (6 cm) thick and the culm up to 151-158 feet (46 meters) in height.
Pls explore more detail here: https://www.townarchi.com/2018/11/giant-dragon-bamboo-dendrocalamus.html