The African Paleotropical floristic categories links to the Flora of highland plains in Yemen

About 222 plant species (two Ferns, one Gymnosperm, 219 Angiosperms: 169 Dicotyledons and 50 Monocotyledons) from the total 249 species were recorded from the Highland plains in Yemen, showing a distribution relationship with three African paleotropical floristic regions and 10 African paleotropical floristic elements. The distribution relationship among the African paleotropical floristic elements was subjected to numerical analysis: the African paleotropical floristic region with the highest number of species is Sudano-Zambezian, with 207 (83.1 %) species; while the African paleotropical floristic element, with the highest number of species, is the Afro-Montane Archipelago-Like Regional Centre of Endemism, with 184 (73.9 %) species.