Paper Mulberry (Broussonetia papyrifera)  Division - Magnoliaphyta Class - Magnoliopsida Subclass - Hamamelididae Order - Urticales Family - Moraceae Genus - Broussonetia Paper Mulberry is often classed as a "weed tree," mostly because it grows very rapidly. As can be seen from the first photo, it can also grow under the extreme conditions of cracks in the urban landscape.        Taxonomic List List by Scientific Name Text Only List by Scientific Name |