Limegrass

This big, lime green grass grows up to 6 feet (1.8 meters) tall. The asymmetrical stalks grow in thin clumps that are strong and tough and they overwhelm an area rapidly.

When mature, the end of the stem eventually transforms into a tiny, olive puff.

During the late autumn, it produces very little pollen; it does not cause many allergic reactions, and after flowering, it is left with lots of medium-sized grains.