Illustrator and famed children’s book writer, Christoph Niemann, brings us “Bio-Diversity,” a series of leafs that he’s either found or shaped into states, Star Wars characters (pictured above), T-shirts and other clever creations. Each one has a pithy-tree or -leaf title like, “alder ego” and “poplar vs. unpoplar” (shown below). [Flavorwire via Abstract City Blog]