Dendrocalamus strictus ?;

ID of Bamboo plant.. from Pakistan : 3 posts by 2 authors. Attachments (5)
Please identify this bamboo plant. Someone identified it as Dendrocalamus strictus (locally bans in urdu) but i need its confirm identification. It is planted in university campus, Lahore, Pakistan with name plate Bambusa ventricosa which doesnt look right to me.

Pl. also check with images at 

I agree with the genus Dendrocalamus, but I am not sure with the species, because there is no inflorescences.