• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Wildflowers - Common Burdock

Common Burdock - Arcitim minus
Common Burdock - Arcitim minus
NPS Photo by Jim Pisarowicz
The first year growth of Common Burdock looks like rhubarb but narrower and hairy. Red flowers appear the second year.

Did You Know?

Natural Entrance of Wind Cave

Winds caused by changes in barometric pressure are what give Wind Cave its name. These winds have been measured at the cave's walk-in entrance at over 70 mph. The winds at the natural entrance of the cave attracted the attention of Native Americans and early settlers.