Masud, I use what I find as stepping stones to do more searching, that's how I find what I want.
I came across Babul often in the above pdf, a search for "Babul tree" then brings different results. Once more I'm finding Acacia nilotica with mention of mature trees not being armed. Young trees are armed, at what stage is a tree considered mature? When it attains a certain height?
http://www.indianetzone.com/4/...
http://kumarpati.wordpress.com...
