Emerald

This yellow-green or beige moss is commonly found growing in medium-sized clumps In rainforests, and In damp forests.
It is modest-sized, growing up to 5 inches (13 cm) tall. It forms in sparse patches, and is overwhelmingly resistant; it is very difficult to kill.
When mature, emerald flame-shaped capsules grow at the end of short, lime green sporophytes, eventually opening up during the mid-autumn to release thousands of spores; it can cause severe allergic reactions.