What is "jubur"

Jubur (also known as: Jebour, Jibour, Jubour, Jabur, Jaburi, Jebouri, and Jabara) is the largest Arab tribe in Iraq that scattered throughout central and northern Iraq. Part of the tribe settled in Hawija and Kirkuk in the eighteenth century. Al-Jiburi, 'Azza, Dulaim, Janabi and 'Ubadi federations are all sub-groups of the Zubaydi tribe which is one of the Yemeni Arab tribal groups of Iraq.