What you need to ask yourself to help with the identification process is
are the culms straight/bent
what colour are they, when young and mature
where does the leaf emerge from
is it a clumping or running bamboo
what shape are the leaves

I cannot see your links to help you - the photograph is not showing but if you could upload again will help you identify it

a useful article can be found at http://www.bamboosuccess.com/purchasing-bamboo.html