reindeer moss

Noun reindeer moss has 1 sense

• reindeer moss(n = noun.plant) arctic moss, cladonia rangiferina, reindeer lichen - an erect greyish branching lichen of Arctic and even some north temperate regions constituting the chief food for reindeer and caribou and sometimes being eaten by humans;
is a kind of lichen
is a member of cladonia, genus cladonia