Gray Moss

This gray moss is commonly found growing in large clumps In moorlands, On trees, and On rotten logs.
It is big, growing up to 6 inches (15 cm) tall. It forms in large clumps and they are slow to spread and grow, and is overwhelmingly light.
When mature, emerald oval-shaped capsules grow at the end of elongated, lime green sporophytes, eventually opening up during the late autumn to release dozens of spores; it can cause allergic reactions.