Bambusa lako, known as Timor black bamboo,[1] is a large species of bamboo originating from the island of Timor; its black culms may reach 21 m (69 ft) in height.

Bambusa lako grows to 21 m (69 ft) in height, with culms reaching a maximum of 10 cm (3.9 in) in diameter.

The culms are initially covered with culm-sheaths which have dark brown-black hairs.

The branches are short and leaves long and pendulous; individual leaf-blades may reach 25 cm (9.8 in).

[3] Timor black bamboo was described and separated from the Indonesian black bamboo species Gigantochloa atroviolacea by botanist Professor Elizabeth A. Widjaja in 1997, as its appearance (morphology) differed.