Saba comorensis, the bungo fruit (pl. mabungo), mbungo, or rubber vine is a plant, which is widespread across most of tropical Africa as well as in Madagascar and Comoros. It grows in Tanzania, for example on the islands of Pemba and Zanzibar in the Indian Ocean. The species belongs to the genus Saba from the Apocynaceae family. The fruit looks similar to an orange with a hard orange peel but when opened it contains a dozen or so pips, which have the same texture as a mango seed with the fibres and juices all locked in these fibres.