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).
Alchornea floribunda Alchornea floribunda is a plant native to Sudan, Uganda, Cameroon, Central African Republic, the Republic of Congo, Equatorial Guinea (incl. Bioko), Gabon, São Tomé and Príncipe, the Democratic Republic of Congo, Côte d'Ivoire, Ghana, Guinea, Liberia, Nigeria and Sierra Leone. The plant is locally known as "Niando".