• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Prairies and Grasslands

Within Wind Cave National Park you can find an excellent example of a mixed grass prairie. A mixed grass prairie is an ecotone characterized by a mixture of the tall grass species of the eastern tall grass prairie and the short grass species of the western high plains. It is a meeting place, an area that is constantly changing. The dominance of the different types of grasses depends on the amount of moisture received in any given year. With abundant rainfall the tall grasses will dominate because they need more moisture. They are generally found in the valleys of the park. The short grasses are adapted to less moisture. These grasses are found on the dryer, south facing slopes of the park.

Of all of the flowering plants of the prairie, grasses are often overlooked. They are the main component of the prairie, making up about 80% of the biomass. Forbs constitute the other 20%.

Click on the links below to see other plants of the prairie:

Did You Know?

fire on the prairie

Fire is an important factor in protecting the prairie. Historically, fires burned across the prairie every 4 to 7 years. Fires burn the small trees that would otherwise march across the prairie and turn the grasslands to forest.