"reindeer moss." YourDictionary, n.d. Web. 12 December 2018. <https://www.yourdictionary.com/reindeer-moss>.
reindeer moss. (n.d.). Retrieved December 12th, 2018, from https://www.yourdictionary.com/reindeer-moss
Any of several erect, grayish, branching lichens of the genus Cladonia of Arctic and boreal regions, especially C. rangiferina, constituting the chief source of food for reindeer. Also called reindeer lichen .