This is a medium sized bamboo from the Mekong delta in Vietnam. Large leaves and bushy growth habit. We've seen this bamboo in SE Asia and at bamboo nurseries Australia and it never matches the specific published taxonomic descriptive feature of tiny leaves. Not sure if it was a publishing mistake or a collection mistake, years ago, but the bamboo we're growing is the same as I found everywhere else.
Will grow about 17' tall with 1/2" diameter culms in Florida. Minimum temp. 30 degrees F. Min USDA zone: 9b. Click to find your zone.