There is a weird plant/tree that grows extremely fast growing out of the stump of a tree that we cut down, the plant's leaves are different then anything around, including the tree that we cut down. It smells like oranges and the leaves are rough. It grew about 5 feet in 2 days. Some of the leaves are different shapes and textures on the same stem, its really weird. May be a new species or was mutated somehow. Uploaded some pictures, not sure if it worked or not. I have more pictures too, if you want to see them also.
White Mulberry Morus alba. The multiple leaf shapes are characteristic of this (other mulberries do too, but not so markedly).