Emerald

This lime green and light brown moss is commonly found growing in medium-sized clumps In moorlands, In heathlands, and On rotten logs.
It is giant, growing up to 1.6 feet (48 cm) tall. It forms in thick clumps and they are exceptionally hardy, and is overwhelmingly flimsy.
When mature, emerald oblong capsules grow at the end of short, lime green sporophytes, eventually opening up during the mid-summer to release dozens of spores.