This plant looks so familiar but I am clueless. I thought at first it might be Mountain Ash or a type of Senna, but the more I look at the picture, the more puzzled I am. It's growing in my son's back yard in Indianapolis and I don't know of its habits, nor does he, since he just moved into this home. I was hoping somebody here might be more familiar with it than I am. There seems to be a very small seedling of the same plant just beside and below it. Thanks for taking a look.
