[The Broadleaf Trees and Shrubs of the Columbia River Gorge of Oregon and Washington]

Aspens, Cottonwoods and Poplars of the Columbia River Gorge of Oregon and Washington

The Genus Populus

Fall color of quaking aspen (Populus tremuloides) on Mt. Adams

Quaking aspen as seen at the trailhead for Snipes Mt. along forest road #150 at the toe of the Aiken Lava Flow on the southeastern slopes of Mt. Adams.........October 14, 2005.

White Poplar: Populus alba (Synonyms: Populus alba var. bolleana, Populus alba var. nivea, Populus alba var. pyramidalis) -

Black Cottonwood: Populus balsamifera ssp. trichocarpa (formerly P. trichocarpa) -

Lombardy Poplar: Populus nigra (Synonyms: Populus dilatata, Populus italica, Populus nigra var. italica) -

Quaking Aspen: Populus tremuloides -

Paul Slichter E-mail