Emerald

This emerald moss is commonly found growing in large clumps In damp forests, In rainy mountain ranges, and In heathlands.
It is average-sized, growing up to 6 inches (15 cm) tall. It forms in sparse patches, and is overwhelmingly hardy.
When mature, emerald crescent-shaped capsules grow at the end of short, lime green sporophytes, eventually opening up during the late summer to release hundred of spores; it can cause severe allergic reactions.