Stock photography, photos: Boxelder Tree on Grassland Stock photos of Boxelder (Acer negundo) tree in morning light on the grassland. Sheyenne National Grassland, North Dakota. Photograph: © Matthew Thalman Click for a larger image and more information Keywords associated with this stock photo: Acer negundo, Ash-leaved Maple, Box Elder, Boxelder, deciduous, Manitoba Maple, plantlife, plants, tree, trees, America, National Grassland, North America, North Dakota, Sheyenne National Grassland, United States, United States of America, USA, ecology, ecosystem, environment, environmentalism, habitat, landscape, nature, prairie, scenery, scenic