Nebraska Eastern CottonwoodPopulus deltoides, or "theeastern cottonwood", isnative toNorth America. It is also the official tree of Nebraska, as well as one of the largest North American hardwood trees. Print Collection has commissioned artist Julian Montague to create our State of America series. These bright, bold, graphic images iconicize the quirky Official State Insignias from around the nation. Red States and Blue States may now be a thing of the past.