Our national flower is the concrete cloverleaf. Posted on August 24, 2016August 24, 2011 by admin “Our national flower is the concrete cloverleaf.” — Lewis Mumford Author: Lewis Mumford Category: funny Tags: funny, Lewis Mumford Spread the love Related posts: A government that robs Peter to pay I sometimes lie awake at night trying I never thought of myself as like, Memories are doing funny things to us.