Emerald

This emerald moss is commonly found growing in small clumps In damp forests, In heathlands, and In marshes.
It is average-sized, growing up to 5 inches (13 cm) tall. It forms in thin clumps, and is overwhelmingly resistant.
When mature, emerald crescent-shaped capsules grow at the end of short, lime green sporophytes, eventually opening up during the early winter to release thousands of spores; it can cause severe allergic reactions.