Location: Valley of Preparation, Elven Island (52.2, 51.4)
Gender: ??? ....is wood a gender ???
There's a Daily Quest you can get from the notice board, which involves giving a packet of seeds to him and two other Ents before returning to Lushiwait to complete. He can be a bit hard to find if you don't know where to look, and I've found that the tracking function (where you open up the quest log and click on his name in the text) doesn't work for him most of the time. The easiest way to find him is to use the tracking function on Lushiwait (which usually does work) and then, when you reach her, look directly east. You'll see him across the lake on the island with the big tree on it.