A Random field in the midwest

as i was wandering around in a random area of the vast expanse of the mid-west over seven years ago, i encountered a cache of large plants. what were these odd things? well... i know what they are and have been waiting for the right time to post them. i met a "hitch-hiker" wandering the area with a backpack and a duffel-bag. he did not want to talk to me.