Dendrocalamus bamboo is a tropical Asian genus of giant clumping bamboos in the grass family.  It is primarily found in the Indian subcontinent, China, and Southeast Asia.

Dendrocalamus giganteus is one of the tallest of bamboos, capable of reaching heights up to 46 m (150 ft).

I currently have Dendrocalamus strictus and Dendrocalamus validus growing in my collection.