Sunset Moss

This orange-yellow moss is commonly found growing in large clumps In marshes.
It is huge, growing up to 1.1 feet (33 cm) tall. It forms in small clumps and they overwhelm an area rapidly, and is slightly flexible; it is very difficult to kill.
When mature, emerald circular capsules grow at the end of short, lime green sporophytes, eventually opening up during the early autumn to release thousands of spores.