[Aspens, Cottonwoods and Poplars: The Genus Populus in the Columbia River Gorge of Oregon and Washington]

Dorsal leaf surface of white poplar. Note the prescence of some whitish-gray hairs on this leaf surface. Photographed at an old homestead above the Klickitat River in the Klickitat State Wildlife Area........June 28, 2009.

Ventral leaf surface of white poplar. Note the dense covering of matted whitish-gray hairs on this leaf surface. Photographed at an old homestead above the Klickitat River in the Klickitat State Wildlife Area........June 28, 2009.