Lime Moss

This yellow-green moss is commonly found blanketing small areas In moorlands.
It is small, growing up to 2 inches (5 cm) tall. It forms in sparse patches and can overwhelm an area rapidly, and is slightly light; it burns easily in strong sunlight.
When mature, emerald oblong capsules grow at the end of short, lime green sporophytes, eventually opening up during the mid-summer to release millions of spores.