Zanthoxylum oahuense

Zanthoxylum oahuense, commonly known as ae or Oahu prickly-ash, is a species of flowering plant in the family Rutaceae, that is endemic to the island of Oahu in Hawaii. It is a small tree, reaching a height of 5 m. Ae inhabits mixed mesic and wet forests at elevations of 580 - 800 m. It is threatened by habitat loss.