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

There are at least three varieties of this grass species.

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

Food plants for the larvae include various species of grass.

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

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

Volunteers have identified 59 species of grass on the property.

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

It can be made from several species of grass.

There are more than 9,000 known species of grass.