In Colombia and Ecuador told grapefruit, the same Naranjilla, Lulo or Bombolo. It is a shrub, full of purple pubescencias and with many thorns plant. Its scientific name is Solanum quitoense and belongs to the Solanaceae family. It is a delicious fruit of South American origin. Variety of citrus fruit, which is characterized by its very bitter fruit rinds. It is actually an accidental crossing of sweet orange, ( Citrus sinensis ) and the grapefruit or Shadocck ( Citrus maxima or Citrus grandis ). Its technical name is Citrus x paradise, which means that it is a hybrid. It is native to the Caribbean ( Barbados ). Do not confuse with the grapefruit which is a similar citrus. Although in English, will call you the grapefruit Grapefruit, it has nothing to do with the grape.