The shrub-like trees, found in parts of Africa ... 11 are only found on Socotra Island, off the coast of Yemen. The IUCN’s latest assessment reveals that five of the island’s Boswellia ...

Of the 24 known Boswellia species, 11 are only found on Socotra Island, off the coast of Yemen. Socotra’s Boswellia trees are currently not the main source of commercially traded frankincense ...