old man's beard

Usnea longissima is a genus of lichens that grows on deadwood in the family Parmeliaceae. It grows all over the world wherever the air is clean. Although it is now considered rare in the United State. It’s decline is air pollution and loss of habitat. Here in the Redwood Coastal Forest, it is still abundant. After a big wind, I only have to go outside… Read More »Usena / Old Man’s Beard