And by our very own Arb.!
Here is a link that might be useful: all about trees
Thank you for that great reference...as a person who frequently has to provide information to home owners about trees in the landscape this will be a valueble tool to me. I especially like the part about the value of trees, they are a hard sale (sometimes) for the landscape designer, and I am frequently put in a position where I have to defend the number of trees I put into a design. But anyone who has ever walked through a neighborhood that did not plant trees and then one that did...understands their importance and impact.
Thanks, great site.