What is another word for horsetail lichen?
Pronunciation: [hˈɔːste͡ɪl lˈa͡ɪkən] (IPA) 
Horsetail lichen is a type of lichen that grows on the bark of trees. It is also known as horsehair lichen, and is scientifically known as Bryoria fremontii. Other synonyms for horsetail lichen include tree hair lichen, groom's hair lichen, and reindeer lichen. Some people may refer to it as witch's hair lichen, although this name is more commonly used for a different type of lichen. Horsetail lichen has been used in traditional medicine in some cultures for its antibacterial and anti-inflammatory properties, and is also a food source for some animals, such as reindeer.
