Meaning of ARCTIC MOSS

WordNet Dictionary
	Definition:		[n]  an erect grayish branching lichen of Arctic and even some north temperate regions constituting the chief food for reindeer and caribou and sometimes being eaten by humans
	Synonyms:		Cladonia rangiferina, reindeer lichen, reindeer moss
	See Also:		Cladonia, genus Cladonia, lichen