Boswellia frereana (Maydi frankincense), endemic to northern Somalia, produces an oleogum resin whose essential oil is dominated by monoterpene hydrocarbons, principally a-thujene and a-pinene, and is notably distinguished from other Boswellia species by the absence of incensole and incensole acetate. Single-tree compositional analysis confirmed a consistent chemotype across sampled trees, with lupeol and a-amyrin as the primary triterpenoid constituents of the resin fraction.^[1]