Populus tremula 'Erecta'
Upright European Aspen
Swedish Columnar Aspen
Native to (or naturalized in) Oregon:
- Broadleaf deciduous, very narrow tree with upright branches, matures at about a height of 40 ft and 7-10 ft wide (12 × 2-3 m) Leaves similar to the species; soft reddish rust color in the fall. A male clone so it does not form seeds or "cotton".
- Sun or part shade.
- Hardy to USDA Zone 2 Introduced to the nursery trade in 1911 in Sweden, but reportedly grown there since 1847.