Nomenclature is simply a structured technique of naming. Botanic nomenclature assigns universally precise general or genus names with specific or species names to all plants.
Such botanical names are also scientific and Latin names, but not common names. They are binomial with their uncapitalized species names after their capitalized genus names.
Latin, scientific or botanical names are the same for everyone everywhere, regardless of regional language. They simplify documentation and distribution of botanical information for plants that have different regional common names.