A botanical name is a formal scientific name conforming to the International Coe of Botanical Nomenclature (ICBN) and, if the plant is a cultigen, the additional cultivar and/or Group epithets must conform to the International Code of Nomenclature for Cultivated Plants. The purpose of a formal name is to have a single name that is accepted and used worldwide for a particular plant or plant group. For example, the botanical name Bellis perennis is used worldwide for a plant species, which is native to and has a history of many centuries use in most of the countries of Europe and the Middle East, where it has accumulated various names in the many languages of that area. Later it has been introduced worldwide, bringing it into contact with languages on all continents. The cultivar Bellis perennis 'Aucubifolia' is a golden-variegated horticultural selection of this species. English names for this plant species include: daisy, common daisy, lawndaisy, etc.