Are Berkheya and Valeriana both endemic to Africa?
Valeriana Valeriana is a genus of flowering plants in the family Caprifoliaceae, members of which may by commonly known as valerians. It contains many species, including the garden valerian, "Valeriana officinalis". Some species are native to Europe, others to North America and South America (especially in the Andes).
Nevillea Nevillea is a group of plants in the Restionaceae described as a genus in 1984. The entire genus is endemic to Cape Province in South Africa.