Boswellia frereana is a species of plant native to northern Somalia where the locals call it "Dhidin" or "Maydi" (other spellings include: Meydi, Meyti, Maidi, Maieti, and Mayeti) or the king of all frankincense. It is also known as the Yigaar (or Yegaar) tree and by the common name for all frankincense, Luban. Other than its aromatic uses, the locals also use it for medicinal purposes; they make it into a paste called "malmal" and apply it on the joints to treat inflammation and arthritis. It is reported to be cultivated in Yemen, but this could be based on an 1870 record by Dr. G. Birdwood citing that B. frereana was seen in Sir Robert Playfair's garden in Aden (Yemen). Playfair had brought B. frereana from Somalia and cultivated it in his garden in Aden. Although rumored to also grow