Emerald

This gray-green moss is commonly found blanketing medium-sized areas In damp forests.
It is average-sized, growing up to 3 inches (8 cm) tall. It forms in thick clumps, and is very robust.
When mature, emerald cylindrical capsules grow at the end of short, lime green sporophytes, eventually opening up during the early winter to release hundred of spores; it does not cause many allergic reactions.