A tree diagram in math is a tool that helps calculate the number of possible outcomes of a problem and cites those potential outcomes in an organized way.

If roots or branches of a neighbor’s tree pose problems for you, it’s likely you have the right to take action, even if the neighbor won’t.

Every now and then a tree problem suddenly emerges that result in dozens of calls and e-mails. The tree in question is Mancana ash – a variety of Manchurian ash. I wrote about problems with this ...