Hello, I live on Long Island in New York. I noticed the plant in the first three pictures hiding behind a tree in my back yard. I'm hoping it is not poison ivy because the middle leaf is kind of maple-leaf shaped, and the thick redish stalk is very hairy. Also, it does not look identical to the other four plants growing in other parts of my yard which I am fairly certain are of poison ivy plants. Pictures of them are also included. Thanks so much for your help!

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