Stock photography, photos: Spring Leaves on Quaking Aspen Stock photos of Grove of quaking aspen (Populus tremuloides) trees displaying their spring leaves. Photograph: © Matthew Thalman Click for a larger image and more information Keywords associated with this stock photo: yellow, sheyenne national grassland, sheyenne ng, North Dakota, ND, United States, United States of America, America, US, USA, Quaking Aspen, Popple, populus tremuloides, trembling aspen, forest, plants, aspen, Willow, Salicaceae, deciduous, tree, trees, wood, plant, national grassland, north america, spring