Severinia buxifolia
 Severinia buxifolia is a species of plant related to Citrus Fortunella and Citropsis. Its common name is Box Orange or Boxthorn. Not to be confused with Lycium which part of the Nightshade family. It is native to southern China. It produces small black berries that resemble black currants. The fruits are eaten by birds that disperse its seeds. Its an evergreen in the wild.