Silverfern

This silver or lime moss is commonly found blanketing small areas On trees, and In rainy mountain ranges.
It is short, growing up to 1 inch (3 cm) tall. It forms in extensive patches and they are exceptionally hardy, and is extremely delicate; it struggles more than most during dry spells.
When mature, emerald circular capsules grow at the end of short, lime green sporophytes, eventually opening up during the mid-summer to release millions of spores; it does not cause many allergic reactions.