1. 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
   "The Cladonia rangiferina covered the tundra like a carpet";
   - reindeer moss, reindeer lichen, arctic moss

Type of: lichen

Part of: Cladonia, genus Cladonia

Encyclopedia: Cladonia rangiferina