1. Edible Portion: Shoots A large bamboo. It grows 9-18 m high and spreads 6-18 m wide. The culms are 10 cm thick. They are thin walled. Theinternodes are 25-35 cm long. There are 2 or 3 leaves on the last branch. The leaf blades are 9-18 cm long by 1-2 cm wide.