Silverfern

This silver moss is commonly found blanketing large areas In marshes, In moorlands, and On rotten logs.
It is modest-sized, growing up to 5 inches (13 cm) tall. It forms in small clumps and they spread and grow quickly, and is slightly rigid.
When mature, emerald oblong capsules grow at the end of elongated, lime green sporophytes, eventually opening up during the early autumn to release thousands of spores; it can cause allergic reactions.