Emerald

This drab green moss is commonly found growing in large clumps In bogs, In rainforests, and In heathlands.
It is average-sized, growing up to 4 inches (10 cm) tall. It forms in sparse patches and they overwhelm an area rapidly, and is slightly light; it burns easily in strong sunlight.
When mature, emerald kidney-shaped capsules grow at the end of elongated, lime green sporophytes, eventually opening up during the late summer to release dozens of spores.