Emerald Clump Moss

This yellow-green moss is commonly found growing in large clumps In damp forests.
It is average-sized, growing up to 3 inches (8 cm) tall. It forms in thick clumps, and is extremely resilient.
When mature, emerald triangular capsules grow at the end of short, lime green sporophytes, eventually opening up during the early autumn to release millions of spores; it can cause allergic reactions.