Goldfluff

This short, brown grass grows up to 1 foot (30.5 cm) tall. The perforated stalks grow in sparse patches that are flimsy and they overwhelm an area rapidly.

When mature, the end of the stem eventually transforms into a giant, gold puff.

During the late summer, it produces a modest amount of pollen; it can cause severe allergic reactions, and after flowering, it is left with copious amounts of small grains.