资料来源 : WordNet®

Maclura pomifera
     n : small shrubby deciduous yellowwood tree of south central
         United States having spines, glossy dark green leaves and
         an inedible fruit that resembles an orange; its hard
         orange-colored wood used for bows by native Americans;
         frequently planted as boundary hedge [syn: {osage orange},
          {bow wood}, {mock orange}]