n.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
n.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
N(名词)
any of various lichens of the genus Cladonia, esp C. rangiferina, which occur in arctic and subarctic regions, providing food for reindeer 石蕊; 在北极和亚北极区出现,为驯鹿提供食物