Emerald

This lime green moss is commonly found growing in medium-sized clumps In rainy mountain ranges, and In heathlands.
It is small, growing up to 1 inch (3 cm) tall. It forms in large clumps, and is very flimsy; it dislikes being stepped on.
When mature, emerald kidney-shaped capsules grow at the end of short, lime green sporophytes, eventually opening up during the late autumn to release dozens of spores.