Douglas fir and aspen forest is a plant community or vegetation type of the mountains of the western United States, dominated by Douglas fir ( Pseudotsuga menziesii) and Quaking aspen ( Populus tremuloides). [1]
Douglas fir and aspen forest is a plant community or vegetation type of the mountains of the western United States, dominated by Douglas fir ( Pseudotsuga menziesii) and Quaking aspen ( Populus tremuloides). [1]