• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Trees - Quaking Aspen

Quaking Aspen - Populus tremuloides Michx.
Quaking Aspen - Populus tremuloides Michx.
NPS Photo by Marie Curtin

Did You Know?

White Penstemon

White Penstemon is the most widespread penstemon or beardtongue in the Great Plains. The insides of the blossoms are bearded and often spotted with purple. More...