Emerald

This gray-green moss is commonly found growing in large clumps In marshes, and In bogs.
It is small, growing up to 3 inches (8 cm) tall. It forms in thick clumps, and is overwhelmingly hardy.
When mature, emerald heart-shaped capsules grow at the end of long, lime green sporophytes, eventually opening up during the early winter to release hundred of spores.