Maka'ole berry

Macahoni Berries are wild berries that grow in Earth Kingdom forests. They are known for the poisons in them that cause blindness to humans and likely other animals. They have a similar appearance to Bacui Berries, and are sometimes confused with them. After poisoning himself, Iroh found berries that were either Macahoni Berries or Bacui Berries. He was unable to eat them, however, since Zuko disposed of the berries to prevent Iroh from the possible risk of going blind.