One of the memories I have from childhood has to do with staying up late to watch and old movie. It was a horror movie about a tree monster and it gave me nightmares for years afterward. The tree people featured in the current exhibit at Fruitlands Museum in Harvard, MA titled Branching Out are not monsters at all. In fact, they are quite wonderful. I believe the one below is titled Smoke Jumper.
The sculptor is Joe Wheelwright and the setting at Fruitlands is spectacular. So if you are anywhere in the area and haven't been there, make the trip. It'll be quite enjoyable!