Emerald

This lime green moss is commonly found growing in giant clumps In bogs.
It is short, growing up to 2 inches (5 cm) tall. It forms in thick clumps and they overwhelm an area rapidly, and is overwhelmingly light.
When mature, emerald kidney-shaped capsules grow at the end of elongated, lime green sporophytes, eventually opening up during the early autumn to release dozens of spores.