Emerald

This drab green and moss green moss is commonly found growing in tiny clumps In bogs, and In heathlands.
It is large, growing up to 6 inches (15 cm) tall. It forms in thick clumps and they are slow to spread and grow, and is very flimsy.
When mature, emerald crescent-shaped capsules grow at the end of elongated, lime green sporophytes, eventually opening up during the mid-summer to release hundred of spores; it can cause severe allergic reactions.