Alectoria fallacina

Alectoria fallacina, or bubbling witches hair, is a lichen considered as a part of the Alectoria genus with a generation length of 30 years. It is composed of tangled branches that range from gray to greenish yellow. This lichen is endemic to the Appalachian Mountains, and considered endangered as populations continue to decline. Many stressors such as climate change pose a risk to the already declining population of Alectoria fallacina; however, no explicit conservation methods have been put in place....read more on Wikipedia.