Emerald V-Moss

This moss green moss is commonly found growing in medium-sized clumps On rotten logs.
It is giant, growing up to 1.7 feet (51 cm) tall. It forms in large clumps, and is overwhelmingly durable; it can easily endure being trodden on.
When mature, emerald V-shaped capsules grow at the end of elongated, lime green sporophytes, eventually opening up during the mid-summer to release thousands of spores.