Chimonobambusa

Chimonobambusa is a genus of East Asian bamboo in the grass family.

[4] They are native to China, Japan, Vietnam, Myanmar, and the Himalayas.

[5] see Ampelocalamus Bambusa Chimonocalamus Drepanostachyum Himalayacalamus Vietnamosasa Yushania

Chimonobambusa quadrangularis . Bamboo poles appear to be cylindrical like ordinary bamboos, but they are square to the touch. Native to China.