| Popul | aspen with a narrow crown |
|---|---|
| Popul | North American poplar with large rounded scalloped leaves and brownish bark and wood |
| Popul | large European poplar |
| Popul | distinguished by its columnar fastigiate shape and erect branches |
| Popul | Old World aspen with a broad much-branched crown |
| Popul | slender aspen native to North America |
| Popul | cottonwood of western North America with dark green leaves shining above and rusty or silvery beneath |