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).
Salvia disermas Salvia disermas is a herbaceous perennial shrub native to South Africa (the Cape Provinces, the Free State and the Northern Provinces), found in streambeds, moist forest, grassland, and disturbed ground. It was originally specified as "rugosa", but was changed to "disermas". It grows throughout west Africa, with its greatest concentration in South Africa, where it is used medicinally as a tea, and as a lotion for treating sores.