Emerald Spore Moss

This emerald moss is commonly found blanketing tiny areas On trees, In moorlands, and In marshes.
It is average-sized, growing up to 3 inches (8 cm) tall. It forms in sparse patches and they overwhelm an area rapidly, and is extremely resilient.
When mature, emerald heart-shaped capsules grow at the end of short, lime green sporophytes, eventually opening up during the mid-summer to release millions of spores; it can cause severe allergic reactions.