Twistvine

This massive, orange-yellow grass grows up to 13 feet (4.0 meters) tall. The long, narrow stalks grow in extensive patches that are light and frail and they spread and grow quickly.

When mature, the end of the stem eventually transforms into a medium-sized, blue tail.

During the late summer, it produces copious amounts of pollen, but it does not cause any allergic reactions, and after flowering, it is left with a modest amount of small grains.