What is this stinky flower?

By an edhat reader

This odd plant has sprouted up and produced a very odoriferous flower that attracts flies and smells really bad like something dead and rotten. We may have seen it once upon a time in our backyard like over 30 years ago, but would like to permanently get rid of it once and for all. Its coloration is similar to a Corpse flower but not in shape or size. Anyone have any ideas as to its identification?