• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Wildflowers - Shell-Leaf Penstemon

Shell-Leaf Penstemon - Penstemon grandifloras
Shell-Leaf Penstemon, Large Beardtongue - Penstemon grandifloras
NPS Photo by Jim Pisarowicz
 

The Shell-leaf Penstemon is the largest penstemon in the Black Hills.

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