The elephants destroy trees, making room for the grass species.

Research continues on this problem and to date the only plants that appear to do well are some grass species.

There are no trees native to the area, leading to a wide proliferation of grass species.

In each of these, grass species serve all the keystone roles.

There are at least three varieties of this grass species.

The grass species, in particular, can dominate thousands of square miles.

The larvae, feed on the roots of various grass species.

The small flowers in most grass species are known as florets.

A number of true bugs live only on this grass species.

The dominant plants in the park include more than 100 grass species, many native to the region.