In this task, you are given a set of context paragraph and some supporting facts to answer a question. Your task is to generate answer for given question based on set of context paragraphs and supporting facts.

Context_1 : Berkheya is a genus of flowering plants in the aster family, Asteraceae, and the subfamily Carduoideae, the thistles. It is distributed in tropical Africa, especially in southern regions. Of about 75 species, 71 can be found in South Africa. Context_2 : Berkheya purpurea (Purple berkheya; syn. "Stobaea purpurea" DC.) is a perennial member of the subfamily (Arctotideae) of the Asteraceae family of flowering plants. Like most members of its genus, Berkheya, it is native to southern Africa. Context_3 : 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). Context_4 : Valeriana alypifolia is a species of plant in the family Caprifoliaceae. It is endemic to Ecuador. Its natural habitat is subtropical or tropical high-altitude grassland. Context_5 : Valeriana coleophylla is a species of plant in the Caprifoliaceae family. It is endemic to Ecuador. Its natural habitats are subtropical or tropical moist montane forests and subtropical or tropical high-altitude shrubland. Context_6 : Valeriana cernua is a species of plant in the Caprifoliaceae family. It is endemic to Ecuador. Its natural habitat is subtropical or tropical high-altitude grassland. Context_7 : Valeriana asterothrix is a species of plant in the Caprifoliaceae family. It is endemic to Ecuador. Its natural habitats are subtropical or tropical moist montane forests and subtropical or tropical high-altitude shrubland. Context_8 : Valeriana buxifolia is a species of plant in the Caprifoliaceae family. It is endemic to Ecuador. Context_9 : Valeriana aretioides is a species of plant in the Valerianaceae family. It is endemic to Ecuador. Its natural habitat is subtropical or tropical high-altitude grassland. Context_10 : Valeriana secunda is a species of plant in the Caprifoliaceae family. It is endemic to Ecuador. Its natural habitat is subtropical or tropical high-altitude grassland. fact_1 : It is distributed in tropical Africa, especially in southern regions. fact_2 : Some species are native to Europe, others to North America and South America (especially in the Andes). Question: Are Berkheya and Valeriana both endemic to Africa?
no