Olive

This olive or olive moss is commonly found blanketing small areas In bogs, On trees, and In damp forests.
It is giant, growing up to 10 inches (25 cm) tall. It forms in thin clumps and they overwhelm an area rapidly, and is slightly frail.
When mature, emerald cylindrical capsules grow at the end of short, lime green sporophytes, eventually opening up during the mid-autumn to release hundred of spores.