@stone - The house is 60 years old and was part of a farm in operation less than 70 years ago. It now 'sits next to wetlands'. Our neighbors, whose grandfather ran the farm, told us that the land was 'pretty wet'. Sometimes they had to wait until June to plow the land, even with the ditches they dug (and later dredged) to help remove the water.
The town declared much of the farm under wetland protection, so we essentially have an intermittent stream on the back of the property.
Tree #1 is an Oak. The tree is right next to a natural water run-off, so after rainfalls, it can take a day or two for all the water to run off. It's about 10 yards from the stream, and the land not too much higher than the 'top of the stream' I know this a bit vague. I am just trying to impress upon you that ground there might be considered the edge of the wetlands.
Tree #2 is an Eastern Red Cedar. During rainfalls, water pools close to the tree until it drains. The three is about 6 feet from the stream.
Tree #3 is a Hickory tree. While it is also about 6 feet from the stream, it is also about 6 feet above. I don't know why, but I have to imagine that the farmer piled dirt there for one reason or another.
Generally speaking, plants grow in all three areas.
Let me know if you need more descriptions.