Trees. Towering or tiny, massive or delicate, living or fossilized, trees are found in almost every national park. Giant sequoias and redwoods huddle in western groves. Moss-covered bald cypress fill southeastern swamps. Spectacular cherry blossom trees line the Tidal Basin in our nation’s capital each spring. These trees are important natural features in our parks. They also bear witness to days past. Discover our iconic trees.