I am not sure what kind of bambusa this is as in the Net I found three ID-'s: Bambusa vulgaris, Buddha's Belly Bamboo, phai nam tao ไผ่ น้ำเต้า but also Bambusa ventricosa and Bambusa tuldoides. I have an idea that's the Bambusa ventricosa, because of the "Buddha's Belly"............) http://www.antoni-uni-photography.com/FLORAMYDIGITALHERBARIUM-1/Various-plants/BAMBUSA/30619791_PQVKt6#!i=2643631730&k=J2nTjbQ&lb=1&s=A
