I live in southern Ohio and have about fifteen acres of woods. This plant/tree/tall bush is taking over my woods and I am having trouble with it's id. Any help wood be appreciated. It seems to top out at about 12' max and 4" but they may be new and that is the tallest. Always grow with eight or ten small ones in a bunch, smaller ones dying out and all seem a little brittle for live growth. Local extension agent and OSU tree people said they didn't know from the pictures. Thanks for looking.