We discovered this odd plant growing behind our shed. We can't figure out what it is. We've searched the web to no avail. If you have an idea, please share it here.
(The single non-woody stem has three flowers at the top that resemble black-eye-susan blooms with an extended center. Before you tell me this is a coneflower, look closely at the large leaves attached in a wrap-around fashion about a foot apart.)