What plant is growing in more countries, Valeriana or Elaeis guineensis?
Valeriana:  Some species are native to Europe, others to North America and South America (especially in the Andes). Elaeis guineensis: Elaeis guineensis is a species of palm commonly called African oil palm or macaw-fat. Elaeis guineensis:  It is native to west and southwest Africa, specifically the area between Angola and the Gambia; the species name "guineensis" refers to the name for the area, Guinea, and not the modern country which now bears that name. Elaeis guineensis:  The species is also now naturalised in Madagascar, Sri Lanka, Malaysia, Indonesia, Central America, the West Indies and several islands in the Indian and Pacific Oceans.
Elaeis guineensis