Drepanostachyum is an Asian genus of medium-sized mountain clumping bamboos in the grass family.

[1][2] They are native to China, Indochina, and the Indian Subcontinent.

[3] The differences between this genus and Himalayacalamus are subtle: Drepanostachyum species have many equal branches while those of Himalayacalamus have one dominant branch.

several species now considered better suited to other genera: Ampelocalamus Dendrocalamus Fargesia Himalayacalamus