Emerald

This emerald moss is commonly found blanketing giant areas In heathlands, In bogs, and On trees.
It is small, growing up to 3 inches (8 cm) tall. It forms in large clumps and they are slow to spread and grow, and is extremely sturdy; it is very difficult to kill.
When mature, emerald triangular capsules grow at the end of elongated, lime green sporophytes, eventually opening up during the late autumn to release thousands of spores; it can cause allergic reactions.