Graygrass

This modest-sized, gray-green grass grows up to 2 feet (61.0 cm) tall. The broad, flat stalks grow in thin clumps that are resilient and they overwhelm an area rapidly.

When mature, the end of the stem eventually transforms into a giant, cyan tuft.

During the mid-summer, it produces an average amount of pollen; it can cause allergic reactions, and after flowering, it is left with a handful of large grains.