• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Grasses - Sideoats Grama

Sideoats Grama - Bouteloua curtipendula
Sideoats Grama - Bouteloua curtipendula
NPS Photo by Jim Pisarowicz
Sideoat Grama, like other grama grasses, has its oat-like seeds hanging downward in two rows along the stem. It has an early season growing period and another growth in early fall.

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.