The city of Aspen manages 3,115 narrowleaf cottonwood trees — roughly 27% of Aspen’s “urban forest.” Cottonwoods provide the leafy backdrop to Rio Grande Park, shade the gables of West End Victorian ...

Question: What’s the difference between a popple tree and an aspen? I hear the terms used interchangeably. Answer: Popple (or poplar) are common names for aspen trees because their genus is populus, ...