Usnea, also known as old man’s beard, is a type of lichen that grows on the trees, bushes, rocks, and soil of temperate and humid climates worldwide (1). It has long been used in traditional medicine.

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment.View full profile Rachael has a degree in Zoology ...

You are able to gift 5 more articles this month. Anyone can access the link you share with no account required. Learn more. It is almost the middle of April and I have finally lost most of the snow ...

For today's column, I decided to discuss an entity that is commonly turned in to us - Usnea lichens, more commonly called Old Man's Beard or Goat's Beard Lichen.This entity is not a plant but rather a ...