Watergrass

This small, yellow and slate grass grows up to 1 foot (30.5 cm) tall. The fan-like stalks grow in small clumps that are resilient.

When mature, the end of the stem eventually transforms into a small, sky blue puff.

During the mid-summer, it produces very little pollen; it does not cause any allergic reactions, and after flowering, it is left with lots of large grains.