“Cetraria” is a genus of lichenized fungi within the family Parmeliaceae. It includes species commonly known as reindeer lichens, which are typically found in arctic and subarctic regions. These lichens are characterized by their bushy or branched growth forms and are known to be an important food source for reindeer and caribou. In addition to ecological significance, some species of Cetraria are also studied for their potential medicinal properties.
