Indigo Moss

This green or indigo moss is commonly found blanketing small areas On trees.
It is colossal, growing up to 1.5 feet (46 cm) tall. It forms in thin clumps and they spread and grow quickly, and is extremely robust; it can easily endure being trodden on.
When mature, emerald oblong capsules grow at the end of short, lime green sporophytes, eventually opening up during the late autumn to release thousands of spores.