Cong Vien Le Nin, Hanoi, Vietnam
[Local name] Wamin bamboo in English
Really rare style bamboo like very short internodes and swollen!
It is one of mutations of Bambusa vulgaris.
Making clump form and culms stand tightly.
height is 3-8m and 5-8cm in diameter, but only 10-15cm long in internodes.
Widely planted ronamentally in tropical Asia.
I could see it in many places and the picture was taken at the park in Hanoi, Vietnam.
In Japan it is very hard to survive if planted outside.